1.

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天田, 重庚 ; 寺内, 泰
出版情報: 日本機械学會論文集. A編.  65  pp.2418-2423,  1999-12-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />The cross section of main frame structure is preferable to be a cylinder for plants and animals in order to adapt to their environment. There are some exceptionals. One of those is a hemp palm branch. It has an up side-down isosceles triangular shape. Since the hemp palm branch has unusually large leaves and a relatively slender branch stem as compared with other trees, the branches must be subjected a large bending moment. A triangular cross section must be a solution for that problem, which can reduce the induced stress about 30% under a bending stress. Furthermore, the branch is a composite material reinforced by strong fibers. It also constructs a functionally graded structure on fiber distribution. This structure provides a higher strength in the critical loded region than the induced stress there. 続きを見る
2.

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舩津, 賢人 ; 糟谷, 紘一 ; 白井, 紘行
出版情報: 日本機械学會論文集. B編.  65  pp.4009-4014,  1999-12-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />We calculated the flow-field and surface response condition of a planetary probe entering the Jupiter atmosphere, Within the region behind a detached shock wave, the blunt nose is heated to high temperature. So that, the numerical results were obtained under a viscous-shock-layer analysis. To protect the probe against high temperature condition and to reduce the heat flux, which includes convectional and radiative heat transfer, we used the ablation of C/C composite materials. This simulation included mass injection, radiative transfer, diffusion, and viscous effects. The radiations included were molecular bands, atomic lines, and continuum processes. It was found that carbon ablation materials were effective in reducing the radiative heat flux. 続きを見る
3.

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長屋, 幸助 ; 湯澤, 秀人 ; 村上, 岩範
出版情報: 日本機械学會論文集. C編.  65  pp.4653-4659,  1999-12-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Since a commutator of the DC-motor is divided into a number of segments to have the torque in the circumference direction, the currents in the coils of the rotor vary and have alternative waves during the rotor rotation even in a constant input voltage. The currents become sharp waves, so that they have high frequency component. This implies that the rotor shaft and the case of motor are excited electromagnetic forces with high frequency components. Since high frequency noises are loud when they are input to human ears, so that when high frequency vibrations are suppressed, noises become small. From the situation, this paper discusses a method of noise reduction of Dc Motor. In the method, the current waves are controlled to be sinusoidal waves. The method and the control algorithm are given. In order to validate the method, experimental tests are carried out. It is proven that our method is applicable to the motor noise control. 続きを見る
4.

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白井, 紘行 ; 田部井, 勝稲
出版情報: 日本機械学會論文集. B編.  65  pp.3806-3813,  1999-11-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Based upon a collisional and radiative process theory, and synthetic spectra for argon plasmas, the experimental method for spatial properties of Ar plasma jets was presented, and applied to diagnostics for micro Ar plasma jets for fine cutting. A plasma torch had a nozzle of 0.7 mm in diameter and a discharge length of 2 to 10 mm, and was operated with an arc current of 10 to 30 A. Data from a CCD image processor and Mach-Zehnder interferometer were dealt with an Abel transformation to obtain true spacial profiles of electron density and temperature, and heavy particle temperature. Electron temperature in the main flow was found to be about 12 000 to 13 500 K, electron density of an order of 10^<16> cm^<-3>, both increasing with an arc current. It was also found that heavy particle temperature was significantly lower than electron temperature in the nozzle exit region and increased to coincide with electron temperature downstream. Experimental relation of electron temperature and density could be approximated well by that calculated from steady-state collisional and radiative processes. 続きを見る
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長谷川, 和之 ; 茂木, 俊夫 ; 天谷, 賢児 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  65  pp.3831-3837,  1999-11-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Behavior of a spray combustion in a hot air was studied experimentally. A kerosene spray was injected from swirl atomizer into a hot air stream. The air temperature was controlled from room temperature to 1 100 K which was higher than the self-ignition temperature of a kerosene spray. Flame shape and temperature distribution were measured to characterize the spray combustion appeared in the hot air stream. Flow state around the spray was visualized by a Schlieren method to analyze the behavior of the air entrainment into the flame. Furthermore, Mie scattering from the spray droplets by irradiation of the laser beam was observed to visualize the spray concentration in a flame. As the result, ignition point was shifted to the upstream side with an increase of air temperature. When the air temperature became higher than 800 K, the blue flame appeared at the bottom portion of the flame. Penetration of the spray became shorter with an increase of air temperature. Spatial distribution of the spray which were not vaporized in a flame was strongly affected by the air temperature. 続きを見る
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松原, 雅昭 ; 伊藤, 勲 ; 坂本, 賢治 ; 小棚木, 光明 ; 吉川, 州彦
出版情報: 日本機械学會論文集. A編.  65  pp.1902-1907,  1999-09-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />This paper describes strength evaluation of Al_2O_3/SUS 304 joints subjected to interlaminer shear at elevated temperatures. The jig developed enables us to evaluate shear strengths of ceramics/metal joints at elevated temperatures. The shear strengths of them decrease with increasing temperature. The crack generally initiates at the upper and lower sides of the interface, a brazing filler. It grows into Al_2O_3 after stable growth and becomes unstable till 873 K (I C type fracture). The crack propagates along the interface till unstable fracture from 1 173 K (II type fracture). The crack behavior shows a mixed mode of I C and II types at 973 K and 1 073 K (IC+II type fracture). Larson Miller Parameter is valid for creep rapture tests under shear loading. The fracture modes are the I C type under the condition of low temperature and short time and the II type under the long-term condition. 続きを見る
7.

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田部井, 勝稲 ; 白井, 紘行 ; 高草木, 文雄
出版情報: 日本機械学會論文集. B編.  65  pp.2996-3001,  1999-09-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Light emission properties of xenon-water cavitation in circular orifice flows were investigated experimentally and theoretically. The emission was enhanced by dissolving a small amount of Xe gas into water, and its spacial pattern was taken by a chilled CCD camera and an image intensifier. A spectrum of cavitation emission was measured by a spectrometer with a photon counter. Based upon the collisional and radiative theory for plasmas and a two-temperature model, synthetic spectra were calculated for emission of a collapsing xenon bubble at the minimum radius. It was found that the light emission pulsated and was intense around the flow axis a little downstream of the orifice, and the experimental spectrum was predominated by continuum and its intensity distribution was very similar to the theoretical ones with electron temperature of about 12000 K to 14000 K. Mean emission energy per unit pulse was estimated experimentally to be smaller than 5×10^<-9> μJ/nm・sr at the wavelength of 450 nm, which is consistent with the plasma conditions from the emission spectrum. 続きを見る
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熊谷, 哲 ; 佐藤, 春樹 ; 吉田, 英生 ; 竹村, 正紀 ; 青木, 和夫 ; 高田, 保之 ; 中川, 勝文 ; 工藤, 一彦 ; 岸浪, 紘機 ; 井上, 剛良 ; 多田, 幸生 ; 香月, 正司
出版情報: 日本機械学會論文集. B編.  65  pp.2566-2575,  1999-08-25.  日本機械学会
概要: application/pdf<br />Journal Article
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小島, 宏行
出版情報: 日本機械学會論文集. C編.  65  pp.2659-2664,  1999-07-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />In this report, first, the nonlinear equations of motion of a horizontal one-link flexible robot arm are obtained by use of the mode functions of a cantilever beam with a mass. Then, the algorithm of the desired signal planning of the joint angle for the purpose of the reduction control of residual vibrations of the flexible robot arm is derived by use of the initial and final conditions of the flexural displacement of the flexible link and the constraint conditions of the desired signal of the joint angle during the acceleration and deceleration terms as well as the linearized equation of motion of the flexible robot arm. The rotation control system of the flexible robot arm is constructed with the desired signal planning for the joint angle and the PD controller. Furthermore, the numerical simulations of the rotation control of the flexible robot arm have been carried out, and it is confirmed that the residual vibrations of the flexible robot arm can be effectively reduced by the present desired signal planning for the joint angle. 続きを見る
10.

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長屋, 幸助 ; 小林, 譲二 ; 今井, 勝仁
出版情報: 日本機械学會論文集. C編.  65  pp.2713-2720,  1999-07-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />This paper presents a method of micro-vibration control of milling machine heads by use of vibration absorber. The principle used in the paper is different from usual absorbers. In the present absorber, an auto-tuning vibration absorber is presented in which the absorber create anti-resonance state. When the anti-resonance is used, the damping has to be significantly small, so it is difficult to suppress higher modes. To suppress higher modes, the present article uses autotuning magnetic damper. It damps higher modes, but it also increase first modal vibration. Then a method of optimal auto tuning control is presented in which both principal and higher modal vibrations are suppressed. Experimental tests are carried out for a real milling machine, and cutting tests are also performed. 続きを見る
11.

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及川, 康 ; 片田, 敏孝
出版情報: 自然災害科学.  18  pp.103-116,  1999-05-31.  日本自然災害学会
概要: application/pdf<br />Journal Article<br />Evacuation activity in early stage of the flood disaster is a matter of importance from the viewpoint of the mitigation of injury. The timing for the decision making in which the inhabitant starts the evacuation activity is based on the disaster consciousness of the inhabitant, and the disaster consciousness is formed by flood experience of the inhabitant himself, legend on the flood damage in the past and social education, etc.. In this study, we take notice of the decision making in the evacuation activity of the inhabitant, and analyse the effect of flood experience of the inhabitant on the disaster consciousness and the decision making process of the evacuation activity. Main conclusions are as follows. First, the atrophy of disaster consciousness delay the evacuation activity. The second, though the damage experience in the flood disaster enhances the disaster consciousness, the damage experience of the intermediate level delays the decision making and start timing of the evacuation activity. 続きを見る
12.

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田部井, 勝稲 ; 白井, 紘行 ; 本島, 淳一
出版情報: 日本機械学會論文集. B編.  65  pp.1652-1657,  1999-05-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />The behavior of a single xenon bubble in an adiabatic compression process was investigated theoretically. Rayleigh's equation for the bubble dynamics was coupled with the detailed collisional and radiative processes for xenon plasma to obtain plasma conditions in a bubble. A two-temperature model for electrons and heavy particles was adopted to estimate the luminescence property from a spherical bubble. For the conditions of initial bubble radius of 10 to 150 μm and pressure change of 200 to 800 kPa, the maximum electron temperature ranged from 5000 to 15000 K and electron number densities about 10^<17> to 10^<20> cm^<-3> at the minimum bubble radius. The plasma in a bubble was in thermally nonequilibrium state during the compression process, and generally the maximum electron temperature was significantly lower than the heavy particle one. The emission intensity from cavitation bubbles was sensitive to the change rate of pressure and the bubble radius. 続きを見る
13.

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佐藤, 博之 ; 天谷, 賢児 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  65  pp.1786-1792,  1999-05-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Flame lengths of gas jet diffusion flames were measured under various gravity evels. A spin tester was used to obtain a high gravity field which level was changed from normal gravity (G=1) to G-20. In order to investigate the fuel density effect on flame structure at high gravity level, two kinds of fuels (methane and propanw) and further methane-propane mixture fuel whose density was equivalent to the surrounding air were used. As the results, flame length decreased with an increase of gravity level regardless of the positive and negative buoyancy effect between the fuel and surroundings. To investigate the gravity effect on flame structure, length of blue flame which appeared at anchor portion of the flame was measured under various gravity levels. It was confirmed that the blue flame was expanded with an increase of the gravity level. This result was explained by the enhancement of the air entrainment at the anchor portion of the flame. Evaluation of flame length which was obtained by Altenkirch considering the relationship of fuel and required oxygen were used to evaluate the experimental data of flame length under the various gravity level. From this method the following empirical correlation was proposed : L_f/γ_o=1.72Re^<0.667>Fγ^<0.0846>, where L_f is a flame length, γ_o is a nozzle radius, Re is the Reynolds number based on nozzle radius and Fγ is the Froude number. 続きを見る
14.

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林田, 和宏 ; 天谷, 賢児 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  65  pp.1793-1799,  1999-05-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Laser induced fluorescence was applied for the measurement of OH concentration in the propane diffusion flames. A tunable, narrow band KrF excimer laser was used to excite the A(ν'=3)←X(ν""=0) band of OH radical. An emission spectrum of the induced light from the flames was measured by a spectroscope. An OH fluorescence component was picked up from the emission spectrum in order to obtain the accurate distribution of OH fluorescence in the flames. We call this method for spectrum-LIF (S-LIF). The spectrum of the induced light from the diffusion flames was compared with that of the premixed flames. Although the spectrum had only OH fluorescence components in the case of premixed flames, high intensity emission from the yellow flame appeared on the LlF image in the case of diffusion flames. To remove the high intensity emission from the LIF image, off resonance image was deducted from the OH resonance image as the background image. Using this deduction method, a planer laser induced fluorescence (P-LIF) was tried to measure the distribution of OH fluorescence. OH fluorescence distribution measured by P-LIF was compared with that of S-LIF. As the result, the P-LIF image qualitatively agreed with the data of S-LIF. 続きを見る
15.

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大橋, 隆弘 ; 佐伯, 嘉信 ; 本村, 貢 ; 沖, 善成
出版情報: 日本機械学會論文集. C編.  65  pp.2072-2079,  1999-05-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Not quite a few extruded aluminum alloys are used for parts of building materials today. We develop an expert system for blanking process planning for such three dimensional materials by feature elimination. We think that blanking is the procedure adding' features to a raw material and process planning is the procedure eliminating features from a product. We attempt to implement this feature eliminating procedure on computers. A shape model of a product consists of two parts; a basic-extruded-material and features. A basic extruded material model represents shape of a raw material. It is a plain surface model by polygonal faces. Feature models are surface models, too. But, they describe negative volume representing blanked parts of the product. The expert system attempts to eliminate features by eliminating faces of features on each face of basic material model. At first, the system chooses one face of basic material model, and collects features' faces on it. Then, it searches database, we call 'feature eliminating case base,' at each feature, and finds the blanking procedure which can eliminate, or make it. Repeating the above from the product to its raw material, the system gets process plans of blanking for the product. 続きを見る
16.

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秦, 誠一 ; 山田, 典弘 ; 早乙女, 康典 ; 井上, 明久 ; 下河辺, 明
出版情報: 日本機械学會論文集. C編.  65  pp.2080-2086,  1999-05-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Amorphous alloys with the wide supercooled liquid region are called metallic g lasseS. In the supercooled liquid state, the metallic glasses exhibit superplasticity, which suggests the possibilities of forming the metallic glasses into various intricate shapes. In this paper, formability of two types of Zr based metallic glass; Zr_<75>Cu_<19>Al_6 and Zr_<55>Cu_<30>Al_<10>Ni_5 (atomic%) are examined in the supercooled liquid state. The example metallic glasses showed superplasticity under compressire stress and high thermal stability in the supercooled liquid state. Furthermore, forming accuracy of the example metallic glasses was better than one micrometer. As the application of such precise forming, a concave mirror with a l0 mm diameter was formed. The profile error of the mirror was 0.5 μm and the surface roughness (Rmax), 90 nm. This superplastic forming of the Zr based metallic glasses is expected to be used for the production of various components of high precision and intricate shape. 続きを見る
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長屋, 幸助 ; 小杉, 泰裕 ; 鈴木, 孝明 ; 村上, 岩範
出版情報: 日本機械学會論文集. C編.  65  pp.1530-1537,  1999-04-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />A simple but stable non-contact high Tc superconducting levitation system with a vertical shaft has been presented. The system consists of a superconductor and permanent magnets. In the system, only a lower end of the shaft is supported by a high Tc superconductor, and the other end is supported by two ordinary permanent magnets. Since the restoring force is small with respect to the radial direction the system becomes unstable when the force act in the radial direction, so it is difficult to drive the shaft by electromagnetic forces in using such as motors. Then, a driving system using electromagnets has been presented, in which the balanced forces act on two opposite sides of the disc type rotor in the axial direction. Since the system has no unbalance force from an analytical point of view, the rotor will be able to rotate without control. In the system, however, since there is the eccentricity between the center of rotation and magnetic center, so vibrations are generated. This study also presents an optimal control method of the vibrations. To validates the proposed system, and the control method, experimental tests have been carried out. 続きを見る
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斉藤, 正浩 ; 荻原, 五郎 ; 天谷, 賢児 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  65  pp.920-927,  1999-03-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Behavior of spray-to spray impingement, where two spray jets were formed EFI (Electronic Fuel Injection) nozzles and impinged each other, was studied experimentally. This system was named MISS EFI. Spray penetration and the Sauter mean diameter of the spray were measured to investigate the effect of spray-to-spray impingement. When the impingement location was set at the vicinity of the nozzles, impingement phenomena became to be jet to jet impingement of the liquid column. In this condition, the penetration became shorter than that of the individual penetration. However, the penetration did not changed after spray-to-spray impingement. From the photographs of jet-to-jet impingement, it was confirmed that the liquid film was formed by the impingement, and then this liquid film disintegrated to small droplets. In the spray-to-spray impingement, on the other hand, the relatively large droplets still existed in the impinged spray, because the two sprays crossed each other without disintegration of the droplets. The photograph of the spray-to-spray impingement showed that the droplet-to-droplet impingement in the spray was rarely observed. Further, the chance of coagulation of the droplets was less observed than the disintegration of the dropled. These behavior of the spray-to-spray impingement agreed with the reduction of the Sauter mean diameter of the impinged spray. 続きを見る
19.

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南谷, 覺正
出版情報: 群馬大学社会情報学部研究論集.  6  pp.1-15,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />This essay is an attempt to analyze and explicate The Old Man and the Sea by Ernest Hemingway from the viewpoint that the text represents the author's insight into man, particularly man when he is fighting. It discusses the ingenuity of the novelette's structure, the correspondences between the old man and the fish, the shifts in the old man's psychology, and nature's revenge against man's trespasses. 続きを見る
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田村, 泰彦
出版情報: 群馬大学社会情報学部研究論集.  6  pp.17-35,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />Recently, the number of companies which have introduced "group ware" have increased. "Group ware" refers to software programs that have been created to support groups dealing with specific jobs. Other than Email, group ware would normally include electronic notice boards and schedule management, document management and other functions. Lotus Notes and Microsoft Exchange could be considered to be typical "group ware" programs. Japanese computer makers are now lining up their own original software programs, and word has it that some of these are already being shipped out to users. However, according to a survey of users which appeared in the February, 1997 edition of "Nikkei Computer" with regard to the uses of those companies which intend to introduce "group ware" programs, the following data was obtained. (1) Email, over 40% (2) electronic notice boards and information collaboration t rough a data base, 30% (3) work flow management and other business system cons ruction, less than 10% In this manner, while many companies have already introduced "group ware" into their operations, the only basic functions which are actually being utilized to any extent are the "Email" and "electronic notice board" functions. Only a very small percentage of those companies have yet to take advantage of the "document management" function, which was the main strength of the essential design of the programs and, likewise, only a few of these companies have been able to accomplish any results by using the "information collaboration" function. Therefore, it is my intention to focus upon this "information collaboration" function within this report by dealing specifically with the following three issues : (1) the situation in certain advanced companies which have already been utilizing the "information collaboration" function on a trial basis, I (2) Issues regarding the introduction of a "information collaboration system" in the future, (3) furthermore a survey of the "intelligent properties management" function which is the ultimate objective of an "information collaboration system" 続きを見る
21.

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荒木, 詳二
出版情報: 群馬大学社会情報学部研究論集.  6  pp.37-51,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
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山内, 春光
出版情報: 群馬大学社会情報学部研究論集.  6  pp.53-75,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />First, this article explains how ethics can deal with social and information studies which is under construction. Then, it answers the question why three persons, who are Nogi, K, and Sensei, commit suicide in Soseki Natsume's Kokoro from the point of view of the relationship between Japanese ethics and social and information studies. 続きを見る
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小林, 徹
出版情報: 群馬大学社会情報学部研究論集.  6  pp.77-100,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />William Wordsworth wrote A Guide Through the District of the Lakes under the influence of a cultural movement which had stemmed from he picturesque aesthetics initiated by William Gilpin and others. It is evident that this work is in the tradition of a guidebook because the author is loyal to its conventions which Gilpin and Thomas West, another picturesque advocate and famous guidebook writer, formulated. But Guide is unique In a certain deviation from the tradition, and that is where the author goes beyond the picturesque aesthetics and thus Wordsworth, the poet and present-day wrier, emerges. In the historical description of the landscape of the Lake District, the author blamed late settlers for inadequate management of the area which led to deterioration of the landscape, and articulated the social shift to the machine-based production system which too had begotten its decline. Then he made some modification proposals as well as the plan for fashioning this region into national property, so Guide is also the book of accusation and improvement. The pivotal question is what enabled him to state these things. Wordsworth did not perceive landscape as the picturesque school had done and recommended. They view nature as a picture, which allows people to see selectively, while he views it as it is, including the changing aspects of the landscape even if they are unappealing. And by applying this visual mode in the work itself, Wordsworth tried to convert the taste or the value system of his contemporaries from aesthetical to environmental, and this intent is substantially the same as the one expressed in Lyrical Ballads, where the poet aimed to displace the readers' traditional ideas of poetry and poetics. Lastly, Guide could be regarded as the call to protect the environment, which is unquestionably of paramount concern to us today. 続きを見る
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沖田, 健吉
出版情報: 群馬大学社会情報学部研究論集.  6  pp.101-124,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />One of Keynes's, contribution to economic analysis was to lay emphasis on uncertainty, as not be managed by the frequency theory of probability. He pointed out that every economic agent are forced to make decision in the shortage of the relevant information. Especially, they are unable to forecast correctly the future events by reason of extremely incomplete information. However, if there were no daily and special decision-making in the midst of darkness concerning future time, our industrial soceity could not develop. In my opinion, Keynes analyzed decision-making under uncertainty throughout his whole life as economist. His analytical tools probability, weight of argument, uncertainty, confidence, convention appear mainly in Treaties on Probability. The General Theory, and 1937 Quarterly Journal of Economics article. In this paper, I will study inner structure and mutual relation of these tools as follows : (1) Induction and Probability (2) Uncertainty and Economic World (3) Weight of Argument (4) From Uncertainty to Convention (5) Social Philosophy of Convention Supplement : Uncertainty and Progress of Information Technology 続きを見る
25.

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中島, 照雄
出版情報: 群馬大学社会情報学部研究論集.  6  pp.125-136,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />When we foresee the aged society and internationalized economy, the fundamental tax rerorm must be implemented. In order to secure the long-life and welfare society, playing due attention to the vitalization of the economy, we have to form the loan immediately to construct the new tax system which strikes the plan immediately to construct the new tax system which strikes the good balance among income, consumption, property etc. And, this report, which gives a study of Basic Concepts of Necessity of Tax Reform and Reduction of Individual Income Tax Burden and Corporate Income Tax Burden, and so on, is presented as follows : 1. Introduction. 2. Public Finance in Japan : An Overview. 3. Functions of Public Finance and Principles of Taxation. 4. Lesson from Reagan Tax Reduction. 5. Political Economy and Reform of Corporate Income Tax Burden. 6. Conclusion. In the above chapters, I have investigated various issues regarding Tax Reform. 続きを見る
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堀, 正 ; 野村, みどり
出版情報: 群馬大学社会情報学部研究論集.  6  pp.137-152,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />The authors develop in this article a discussion on the present situation of measures for students with disabilities and measures against sexual harassment in national, public and private uilversities of Japan. The discussion proceeds on the basis of the data from a questionnaire addressed to the presidents of universities. All of 214 universities (45 national, 30 public, and 139 private) answered the questionnaire. About 60% of the universities admit disabled students in all of their faculties. The total number of the students with disabilities is 1044,91% are enrolled in private universities. Of these, students with physical disabilities are 70%. Most of the presidents show the necessity of both a public support system for students with disabilities and some measures against sexual harassment. Only six of the universities provide some measures against sexual harassment in all of their faculties, and three provide them on the faculty basis as well. Twentyseven universities, however, show their preparation. The increasing necessity for some measures against sexual harassment seems to be recognized from the fact that 55% of the universities consider "Much necessary" or "Comparatively necessary" as their response to the questionnaire. Some free opinions of the presidents support the necessity of measures against sexual harassment, but others find no necessity partly because any problem of this kind had never occurred in their universities. It seems that, university administrations assign a low order of priority to the issue of measures for students with disabilities and measures against sexual harassment. 続きを見る
27.

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石川, 真一 ; 三上, 紘一
出版情報: 群馬大学社会情報学部研究論集.  6  pp.153-166,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />The 3.5 billion years' history of life shows that the most important key factor for human survival is to manage the environmental problems such as decomposing and re-use of many kinds of man-made wastes. Many industrial actions has been taken and they are called as environmental business. They will form a huge market of about 24000 billions yens in Japan within 10 years, and will compensate the shrinking market of mass-production. There are also many non-governmental organizations (NGO) activities for improving global environment, showing that the break-through is coming by breaking down the many kinds of existing borders. It is a very good news that the ISO 1400 series, which are the international standards for industrial activities to improve the global environment, are well accepted in Japan. Over 1000 organizations in Japan have already got the ISO 14001 certification, Ieadin the rest of the world. A new paradigm is that the improvement of global environment will lead to the better future for human beings. For this paradigm, decomposers should manage all kinds of wastes to re-use, the cyclic relationships of producers-consumers-decomposers should be made, and innovations should be done for cleaning up the environmental pollutants and reproducing the non-recyclable resources such as oil. 続きを見る
28.

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上林, 邦充
出版情報: 群馬大学社会情報学部研究論集.  6  pp.167-182,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />The "constitutionality" of the wire-tapping as the meas re of the criminal investigation is affirmed almost unanimously. But, the commonly accepted theory regards it "unlawful" because of lack of express provisions in the exisiting Criminal Procudure Act. The latest judiciary precedent that allowed the wire-tapping through a inspection warrant is extremely problematical. 続きを見る
29.

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今村, 元義
出版情報: 群馬大学社会情報学部研究論集.  6  pp.183-199,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />This paper tries to analize the tertiary industry from the point of view of Marxian Economy, by examining the theory of professor Haruo Kaneko, regarded as the popular view of it. The economic significance of the material production, both the primary industry and the secondary industry, is very clear. But, the tertiary industry includes many kinds of labor which don't form the tangible use-value. We call it the service industry in a broad sense. Professor Kaneko gives the definition of service labor from consumer's standpoint, and concludes that contemporary capitalistic economies are not the post-industrial society, but have entered the new stage of what is called the industrial soceity. 続きを見る
30.

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中村, 喜美郎
出版情報: 群馬大学社会情報学部研究論集.  6  pp.201-222,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />These notes present a documentary record of the research done for creating a Model Ordinance on the Protection of Personal Data in public and private section on the municipal level in Japan, carried out as a seminar topic in Legislative Informatics. 続きを見る
31.

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黒須, 俊夫
出版情報: 群馬大学社会情報学部研究論集.  6  pp.223-259,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
32.

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出版情報: 群馬大学社会情報学部研究論集.  6  pp.261-262,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
33.

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舘野, 正樹
出版情報: 群馬大学社会情報学部研究論集.  6  pp.263-265,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
34.

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八木, 尚志
出版情報: 群馬大学社会情報学部研究論集.  6  pp.266-267,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
35.

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青木, 繁伸
出版情報: 群馬大学社会情報学部研究論集.  6  pp.268-270,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
36.

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中村, 喜美郎
出版情報: 群馬大学社会情報学部研究論集.  6  pp.271-274,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
37.

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出版情報: 群馬大学社会情報学部研究論集.  6  pp.275-322,  1999-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper
38.

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Yumin, SHANO ; NEZU, Kikuo
出版情報: JSME international journal Series C Mechanical systems, machine elements and manufacturing.  42  pp.33-43,  1999-03-15.  社団法人日本機械学会
概要: application/pdf<br />Journal Article<br />An effective method for improving the signal-to-noise ratio from measurements of bearing housing vibration is presented.The method is based on the conventional adaptive noise cancelling (ANC) technique principle;it varies the main signal input and reference signal input.Since the main and reference inputs signals are collected at different times, this method is called asynchronous adaptive noise cancelling (AANC).It can improve the signal-to-noise ratio, as in the case of the detecting bearing faults when vibration signals of machinery are collected under low-frequency noise condition.In combination with AANC, statistical analysis, enveloping spectrum analysis techniques are used for detection of bearing fault and diagnosis.Experimental result has shown that these techniques can be made more effective only after AANC has reduced the background noise from the diagnostic signals.A new approach is proposed to the traditional fault detecting for self-aligning roller bearings when the shaft speed is low (250rpm) or high (1000rpm) condition. 続きを見る
39.

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伊東, 明俊 ; 天谷, 賢児 ; 新井, 雅隆 ; 三舩, 博史
出版情報: 日本機械学會論文集. B編.  65  pp.698-705,  1999-02-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />This paper experimentally investigates a behavior of a bioconvective pattern under super gravitational fields. Experimental materials are the high density culture media of Tetrahymena. A centrifugal force was used to synthesize various super gravity conditions by using a spin tester that can generate 1-12[G]. To realize the decreasing effect of bioconvection pattern size by the increase of synthesized gravity, different lengths of a rotative beam are used to change the rate of Corioli's force and synthesized gravity. The main results are as follows: (1) The size of the convection pattern is reduced by an increase of the synthesized gravity. (2) Under synthesized gravitational field, the stream mode of bioconvection is changed by the Corioli's force. (3) The maximum transition velocity (upward, downward) of Tetrahymana is obtaind with the 2-4[G] condition. (4) The decrease in the size of convection pattern is due to the composite gravity. 続きを見る
40.

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ISMAILOV, Murad ; DURST, Franz ; OBOKATA, Tomio
出版情報: JSME international journal. Ser. B, Fluids and thermal engineering.  42  pp.22-29,  1999-02-15.  社団法人日本機械学会
概要: application/pdf<br />Journal Article<br />In the present study an LDA-based technique was applied to analyze details of a transient pipe-flow induced upstream by a fuel ingector. Due to highly accurate measurements of the instantaneous time series of velocity, fuel flow rate and pressure gradient were achieved. The pipe flow has been driven under an injection pressure of 0.6MPa at high injection frequencies of 25 and 50 Hz. The influence of the outflow orifice diameter, varid in range from 100 to 500 μm, on the transient pipe flow dynamics has also been described. The results show that transient behavior of rapid oscillating pipe flow is remarkably and systematically dependent on injection frequency and duration as well as on the orifice diameter. 続きを見る
41.

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ISMAILOV, Murad ; ISHIMA, Tsuneaki ; OBOKATA, Tomio ; TSUKAGOSHI, Masayoshi ; KOBAYASHI, Kazumitsu
出版情報: JSME international journal. Ser. B, Fluids and thermal engineering.  42  pp.39-47,  1999-02-15.  社団法人日本機械学会
概要: application/pdf<br />Journal Article<br />Time-dependent centerline velocity is measured using LDA-flow meter. Swirl inj ector at frequencies of 22 and 46 Hz generates oscillated flow under high-pressure from 4 up to 7 MPa. The encoded time-series of velocity is used to reconstruct the time-variable series of instantaneous flow rate and pressure gradient. Transient injection dynamics are analyzed to obtain basec characteristics of an injection system that will be able to be used for real time monitoring or active controlling of high-pressure gasoline injectors. The results obtained through analyzing the integrated mass rates within a cycle, indicate that a certain injection system is characterized by the flow rate constant γ which independent on injection duration and can be obtained from only accurate measurement of centerline velocity in the fuel transport pipeline. The present technique allows us to simplify the injection model and can be effectively adopted for practical employment on active and passive control with respect to gasoline direct injection engines. 続きを見る
42.

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ISMAILOV, Murad ; ISHIMA, Tsuneaki ; OBOKATA, Tomio ; TSUKAGOSHI, Masayoshi ; KOBAYASHI, Kazumitsu
出版情報: JSME international journal Ser B Fluids and thermal engineering..  42  pp.30-38,  1999-02-15.  社団法人日本機械学会
概要: application/pdf<br />Journal Article<br />A high-pressure swirl type spray has been experimentally analyzed by using a phase Doppler anemometer(PDA). The experiment was performed with an injection pressure of 5 MPa and an injection frequency of about 46 Hz. The PDA data was obtained in a two-dimensional plane and arranged with the injection phase angle. The arranged data of mean velocity, Sauter mean diameter, and droplet number density were visualized by using commercial software. In this paper, the data were compared with the results of visualization. It is indicated by the experiment that the large velocity and large size droplets initiated from the injector with small spray angle at the beginning of the valve opening duration. This stage was called core jet. In the next stage called quasi umbrella spray, the spray developed with large spray angle. After closing the valve, the spray remains increasing its velocity and diameter. This was caused by the "post injection". Using PDA, the detailed feature of the spray can be discussed with high temporal resolution. 続きを見る
43.

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藤沢, 延行 ; 井上, 智 ; 横田, 正二 ; 田名網, 弘 ; 渡部, 功 ; 高野, 祐二
出版情報: 日本機械学會論文集. B編.  65  pp.48-53,  1999-01-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Air flows in a heater unit for automobiles are studied by flow visualization w ith tracer injection technique and the visualized images are analyzed by cross correlation method to obtain the velocity distributions in the unit at various mixdoor angles. The results indicate the variations of flow pattern in the heater unit with the mixdoor angles and the appearance of strong interaction between separated main flow and circulating heater flow at relatively large mixdoor angles, which promotes the flow mixing and simultaneously increases the pressure loss inside the unit. The flow fields in the heater unit are calculated numerically based on three dimensional momentum equations combined with κ-ε model of turbulence and with an experimental flow model of heater core. The numerical results reproduce well the experimental flow patterns in the heater unit, but there exits some deviations in the mean velocity and surface pressure distributions at large mixdoor angles. 続きを見る
44.

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HAMANA, Koei ; HAMANA, Hiroshi ; ITOH, Takashi
出版情報: 群馬保健学紀要.  19  pp.1-4,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />The polyamine patterns of 21 strains of extremely halophilic archaebacteria, including three newly described genera, were examined. Agmatine as the major polyamine was found in all strains, while putrescine was found in many, but not all strains. These polyamine profiles are consistent with those of 47 strains of the extremely halophilic archaebacteria published previously, but are different from any other groups of archaebacteria. Thus, the polyamine profile of the halophilic archaebacteria serve as a useful chemotaxonomic marker within the archaebacteria. 続きを見る
45.

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松房, 利憲 ; 小林, 夏子 ; 徳江, 与志子 ; 山勝, 裕久 ; 中村, かおり
出版情報: 群馬保健学紀要.  19  pp.5-8,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />群馬県作業療法士会では1996年度から1.地域委託事業などの窓口,2.地域活動情報と機会の提供,3.人材登録リストの管理・活用を活動 方針として地域リハビリテーション部を設置した。この事業計画が会員の意向と整合性を持ち支持されるかの把握を目的に,会員107名(1996.3月現在)に対し,地域活動とそれに対する参加意向の質問紙調査をした。結果は県内の地域リハビリテーション活動並びに作業療法士が行っている地域活動が不十分と考えられており,多くの会員が参加意向を示したことから,地域リハビリテーション部を中心に活動方針に乗っ取って充実を図る必要性が認められた。また行政の方針とも相まって組織的活動に取り組み,徐々に行政を中心に地域活動の拡大が得られている。地域リハ活動の充実に向けて課題は多いが,地域リハ部を中心にさらなる活動が望まれる。 続きを見る
46.

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小林, 夏子 ; 山勝, 裕久 ; 松房, 利憲 ; 徳江, 与志子
出版情報: 群馬保健学紀要.  19  pp.9-12,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />Rozierらの質問項目を用いて,群馬大学'94年度(3年制)および'97年度(4年制)OT学生:各20人を村象に質問紙調査を行い, 加えて米国OT学生(4年制)との職業選択志向性について検討した。結果:1.調査票の回収率は95%である。2.'94・'97年度生は共通して「将来性,多様性がある仕事」を支持するが,「教育や管理面の仕事」の支持は低い。3.'97年度生は「自然科学や身体知識」の知識因子を,'94年度生は「高額給料や社会的評価」の外的因子を支持する特徴がある。4.'94・'97年度生と米国OT学生とは共通して,「他者への援助志向」および「将来性,多様性のある仕事」を支持するが,「教育や管理面の仕事」の支持が低い。5.職業選択理由の平均支持率は,米国OT学生の方が高く多様な志向性を示す。今後これらの把握を基にOT教育のさらなる充実が望まれる。 続きを見る
47.

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小林, 夏子 ; 松房, 利憲 ; 山勝, 裕久 ; 徳江, 与志子 ; 岩崎, 清隆 ; 内田, 篤 ; 中村, かおり
出版情報: 群馬保健学紀要.  19  pp.13-17,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />臨床教育に対する現状と問題把握を意図して,54施設の指導者92名を村象に郵送質問紙調査を実施した。結果,1.調査票の回収率は82%, 2.指導者は実習の現状に一応の満足を表明した。とくに満足が高かったのは教師による訪問:「実習訪問」と「症例報告集」,不満足だったのは学生の「知識,技術」であった。3.指導者の属性では,男性,精神障害分野,2・3年担当,臨床経験11年以上がもっとも満足が高かった。4.今後の課題として,「知識と技術,評価関係,実習態度,考察力」等が不足していると指摘された。また実習の拡大については,指導者の過半数が不可能と判断した。これらの具体的な改善に加えて,指導者一教師間の共通認識に基づく協業の必要性が示唆された。 続きを見る
48.

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山勝, 裕久 ; 本間, 美智子
出版情報: 群馬保健学紀要.  19  pp.19-22,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />群馬大学医学部附属病院リハビリテーション部において過去1年間に月1回の頻度で計11回のパーキンソン教室を開催した。のべ対象者は12名 (男性6名,女性6名),全体の平均年齢は63.0才で重症度はYahrのステージIVの者が比較的多かった。毎回の平均参加人数は6.4人で3回以下の低頻度参加群7名と8回以上の高頻度参加群5名に大きく分かれた。プログラム内容では当初パーキンソン体操,粗大運動を含むレクリエーションを中心に行っていたのが,最近ではこれに言語訓練が加わり定着してきた。最近では参加者が特定の対象者(高頻度参加群)に限られてきており,これを打開するために年間計画の作成,プログラム内容の充実などの必要性が感じられた。 続きを見る
49.

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笠原, 恵 ; 高橋, 美帆 ; 徳江, 与志子 ; 山勝, 裕久
出版情報: 群馬保健学紀要.  19  pp.23-26,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />脳血管障害患者15名にCOPMを施行し,患者個々の挙げた問題点5項目に対する遂行,満足について患者とセラピストの評価結果を比較した。 遂行即ち能力に関してはほとんど差がなく,満足に関してはセラピストの方がやや高めに採点する傾向が見られた。本来COPMにはない患者とセラピストの挙げた問題点の比較では,全体の一致率は65.3%であった。分野別に見ると患者は身辺動作に強い関心(患者61.3%,セラピスト49.3%)を持っており,セラピストは余暇活動に高い関心(セラピスト25.3%,患者14.7%)を持っていた。COPMでは面接という過程を通し,対象者を取り巻くすべての領域から問題を抽出するように工夫されている。また,身辺動作という機能面にとらわれがちな対象者に広い視点を持つことを援助するとともに,セラピストが患者の認識を知る点でも有効と思われる。 続きを見る
50.

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高倉, 真佐美 ; 小林, 夏子 ; 岩井, 恵子 ; 布施, 裕美 ; 徳江, 与志子
出版情報: 群馬保健学紀要.  19  pp.27-30,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />2年前から高校生を対象に,人材確保と作業療法PRを目的とする「作業療法1日体験」事業を実施して,高校生と作業療法士への質問紙調査を行 ってきた。従来,高校生には好評で実施の意義が認められた。他方,受け入れ担当の作業療法士からは自己の役割遂行と対象に対する満足・不満足が表明されてきた。今回本事業を充実させようと,資料や方法の改善から受け入れ負担の軽減を試みたところ,作業療法士の不満が減少した。しかし受け入れを作業療法士希望者だけに限りたいとの声も出された。今後の発展に向けて,実施方法の継続的な改善および進路を模索する対象に対する幅広い受け入れの是非について,事業の意義にそって組織的に再検討する必要があると思われる。 続きを見る
51.

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小泉, 美佐子 ; 伊藤, まゆみ
出版情報: 群馬保健学紀要.  19  pp.31-36,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />本学看護学専攻1回生の高齢者イメージを明らかにする目的で,老年看護学の授業に先立ち高齢者のイメージ調査を行った。また,高齢者個人を理 解させる学習として学生に高齢者のライフ・ヒストリー・インタビューを課し,その高齢者のイメージを先の調査に用いたスケールで評定させ,前後のイメージの比較から学習の効果を探ることを試みた。その結果,以下のことが明らかとなった:学生は,高齢者のイメージとして,遅い,保守的な,ひまな,弱い,にぶい,受動的なといった活動性や適応力に関連した項目でやや否定的に評定していた。一方,おだやかな,あたたかい,親切な,誠実な,気長な,など,高齢者の人柄や穏やかさに関連した項目で肯走的に評定していた。ライフ・ヒストリー・インタビューの対象となった高齢者のイメージは,高齢者一般のイメージと比較して,活動性を初め,より肯定的に評定されていた。ライフ・ヒストリー・インタビューは高齢者に対する固定観念的なイメージを見直し,高齢者の強さ,充実した暮らしぶり,高齢者がより親しみやすい存在であることを気づかせるのに効果的な学習方法であることが示唆された。 続きを見る
52.

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林, 千冬
出版情報: 群馬保健学紀要.  19  pp.37-46,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />全国339カ所の老人病棟入院医療管理料採用病院に対して、介護職員の人事・労務管理に関する質問紙調査を行い、介護職員への現任教育の実態 を解明しその関連要因について探索的に分析した結果、以下のような知見を得た。1)ロジスティック回帰分析を用いて、介護職員研修の実施状況5項目に関連する要因を各々分析した結果、病院のケア・ミックス体制を採用する病院や病床規模の大きい病院ほど、新人研修および在職者研修の実施率が高い傾向が認められた。また、同じく病床規模の大きい病院ほど、研修の年間計画作成の実施率が高かった。2)重回帰分析を用いて、介護研修実施の充実度に関わる要因を探索した結果、介護職員の平均年齢が若い、市区部に所在している、ケア・ミックス体制を採用している、介護職員の業務体制が自立的であるといった痛院ほど、介護研修において基本的な項目がより多く実施されている傾向が認められた。 続きを見る
53.

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大澤, 晴美 ; 本間, 美智子 ; 三浦, 智未 ; 山路, 雄彦 ; 臼田, 滋 ; 渡邉, 純 ; 岩崎, 清隆 ; 山勝, 裕久 ; 山口, 晴保
出版情報: 群馬保健学紀要.  19  pp.47-50,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />1997年4月,群馬大学医学部附属病院にリハビリテーション部が開設され,非常勤の理学療法士と作業療法士各1名が勤務している。この調査 の目的は,開設から1998年8月までの診療実績を報告するとともに,当院リハ部における現在の問題点を明らかにすることである。対象はこの間にリハを施行した全377症例である。リハ部への需要は高まっており,総依頼件数は開設時155件/月であったものが,最高652件/月と約4倍に増加した。特に入院患者の依頼増加が著明であった。しかし,人員不足のため,各診療科からの依頼に十分対応できていないのが現状で,比較的多い廃用性症候群の予防にも関われないでいる。また,大学病院でありながら学生の臨床実習の場としても機能していない。このことより,今後は人員の確保が最重要であると考えられた。 続きを見る
54.

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神田, 清子 ; 飯田, 苗恵 ; 石田, 和子
出版情報: 群馬保健学紀要.  19  pp.51-57,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />がん化学療法が造血器腫瘍患者の食事摂取におよぼす影響を明らかにし,食事援助のあり方を検討する目的で,入院中の造血器腫瘍患者45名を対 象に化学療法前・中(薬剤投与3-4日目)・後(薬剤投与終了後10日目)に面接法と観察法を用い縦断的に調査を行った。主な調査内容は,化学療法の副作用である消化器症状,食事摂取量および食事嗜好である。また,化学療法前から後10日目まで喫食量調査に協力が得られた4名については化学療法に伴うエネルギー摂取量と蛋白摂取量を分析した。調査日に提供された病院の全食事量に対する患者の摂取割合の平均は,化学療法前が82.9%,化学療法中が77.1%,化学療法後が67.6%であり,化学療法前と後では有意差が認められた。化学療法中と後の摂取量に影響をあたえていた消化器症状は,嘔吐,下痢症状および味覚変化であった。化学療法中と後に食べやすい食品は,さっぱりした物や飲み物,麺類であり,食べにくい食品は揚げ物や魚介類であった。化学療法中と後に嘔気,口内炎などの消化器症状が強く出現した事例では,その期間の蛋白摂取量は基準に満ちておらず,摂取エネルギー量は基礎代謝量にさえ達しなかった。以上より化学療法による摂取エネルギー量の低下を予防するには,嘔気,下痢,味覚変化を早期にアセスメントし,緩和のための看護介入を適切に行う。病院食として化学療法食,口内炎食を導入するなどのシステム化をすすすめることも大切であると思われる。 続きを見る
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酒井, 保治郎 ; 都丸, 正 ; 山口, 晴保 ; 岡本, 一真
出版情報: 群馬保健学紀要.  19  pp.59-64,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />オドボール課題としてよく使用される選択反応時間課題では,事象関連電位測定時の波形に運動関連脳電位が重畳していることをそれぞれを同時に 測定することにより明らかにした。この重畳する運動関連脳電位の事象関連電位への影響を検討するためのシミュレーションプログラムを開発した。その結果,運動関連脳電位の重畳がP300振幅を小さくすること(通常5~6mVの減少),ならびにP300潜時にも最大数ms程度の影響を及ぼすことがわかった。本プログラムは選択反応時間課題で測定した事象関連電位において,運動関連脳電位の影響を調べるのに有効であった。 続きを見る
56.

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岡本, 一真 ; 酒井, 保治郎
出版情報: 群馬保健学紀要.  19  pp.65-69,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />群馬県立循環器病センターに群馬大学神経内科より派遣された医師が担当した入院患者のうち,急性期脳梗塞・脳出血患者(以下急性期CVD患者 )と神経学的に異常ない患者(以下非神経疾患患者)の退院先を,リハビリテーション(以下リハビリ)施行の有無と合わせて検討した。対象は1992年6月より98年5月までの全患者943例中,急性期CVD患者285例(脳梗塞235例,脳出血50例)と非神経疾患患者192例とした。死亡例や神経内科以外の疾患治療のため転院した症例を除くと,自宅退院の割合は,急性期CVD患者が非神経疾患患者より有意に低かった。急性期CVD患者について,自宅退院と自宅以外への退院を比較したところ,主病変が脳の左右いずれにあるかは退院先に影響せず,高血圧,不整脈,糖尿病,高脂血症,狭心症,心筋梗塞などの心疾患合併は,自宅退院を阻害する因子ではなかった。またリハビリ施行例は,リハビリ非施行例よりも自宅退院の割合が高い傾向があったが,有意差はなかった。今回調べ得た中では,麻痺や痴呆などによる介護が必要なことが,自宅退院の妨げになると思われた。急性期CVD患者では発症年齢が高くなるにつれて痴呆や麻痺による介護が必要な患者の発生率が上昇した。そしてこれらの患者が自宅に退院する割合は,高齢になるに従って低下する傾向があった。このような介護が必要な患者が自宅に帰るには,介護可能な家族の存在が不可欠である。患者と配偶者の高齢化,少子化が進行する中,要介護患者を社会が支えていくには,家族の対応のみでは不十分で,公的なサービスの充実が望まれる。 続きを見る
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伊東, 和子 ; 日暮, 眞
出版情報: 群馬保健学紀要.  19  pp.71-76,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />本研究の目的は,母子同室体制での初産婦と母子異室体制での初産婦は対児感情に違いがあるかどうか。特に産後1か月後のわが子の泣きに対する 母親の反応について知ることである。調査対象は母児同室群の初産婦197名と異室群の初産婦148名の計345名である。方法は産褥3-5日の面接調査と1か月後の質問紙方法による。結果は,1)母子同室を経験した母親は,1か月後の回避感情が低下する。2)異室群において,乳児の泣きが強いと感ずる母親,乳児の泣いている意味が解らない母親の方の接近得点が低くなった。3)両群に共通する乳児の泣きに対する反応は,泣き方が強いと感じる母親ほど,回避得点は高かった。わが子との接触時間を入院中から多く持つことが,赤ん坊に対する肯定的な感情を芽生えさせ,適切なコミニュケーションがとれる方向に変化することが期待できる。 続きを見る
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山本, 有紀 ; 服部, 卓 ; 宮沢, 君子 ; 田村, 文子
出版情報: 群馬保健学紀要.  19  pp.77-80,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />日々さまざまなストレスがかかっていると思われる看護学生への援助に役立てることを目的として,現在の学生のストレス状況とその性格傾向につ いて看護学生に調査を行った。調査はストレス症状質問紙(SCL-S),日本版モーズレイ性格検査(MPI)を施行した。その結果,調査した学生の3分の2がストレス状態と判定されるということが明らかになった。また,性格傾向とストレスの表されやすさに関連があることが示唆された。今回の調査で,ストレスを感じている学生をケアし,さらにそれに対する対処法を身につけさせるような援助を行っていくためには,学生が具体的にどのようなことをストレス源と感じ,どのような反応を示しているかについて今後詳しく調べる必要がある。 続きを見る
59.

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小板橋, 喜久代 ; 柳, 奈津子 ; 酒井, 保治郎 ; 菱沼, 典子
出版情報: 群馬保健学紀要.  19  pp.81-89,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />漸進的筋弛緩法によるリラクセーションの効果を検証する目的で,安静法(対照実験)と漸進的筋弛緩法(Progressive Muscle Relaxation Method以下PMR法と略)時における,脳波および心拍変動解析を行った。あわせてSTAI不安テストと身体感覚尺度を用いて認知・感覚的反応を評価した。対象は,健康な女性6名である。データは,同一被験者に日を替えて3回測定した。1日目は実験室及び実験条件に慣れるための予備日とし,2日目と3日目に安静法とPMR法を体験させて,両データを比較検討した。その結果,(1)脳波の高速フーリエ変換(FFT法)による分析が可能であった4例中の3例について,α波およびθ波の周波数帯域のPower値を比較したところ,安静法時には僅かな増加傾向が示され,PMR法時には顕著な増加が見られた。(2)平均心拍数(HR)および平均RR間隔は,6例中5例において,PMR法時に,HRの減少と平均RR間隔の延長が見られた。1例はPMR法時にHRの増加を示し,平均RR間隔の短縮を示した。なお,CV_<rr>値(心拍変動係数)と,FFT解析による高周波数帯域・低周波数帯域の割合については,対照実験との差は明らかにされなかった。(3)全例においてSTAI状態不安得点の低下と筋弛緩感覚の高まりを示す身体感覚尺度得点の上昇が見られ,PMR法時に顕著であった。 続きを見る
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藤野, 文代 ; 森, 陽子 ; 大野, 絢子
出版情報: 群馬保健学紀要.  19  pp.91-96,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />乳癌術後における危機とエゴグラムとの関係を明らかにすることを目的として,乳房切除術を受けた患者90名を対象にして,危機の4段階につい て面接調査を実施し,さらにエゴグラムは郵送法にて調査を実施した。その結果,危機段階におけるエゴグラムタイプの割合はNP(養育的親)・A(大人)・FC(自由な子供)タイプに適応段階の割合が多く,CP(批判的親)・AC(順応した子供)タイプにおいて,適応段階の割合が少なくなっていた。また,パート職群・温存術群・家族癌経験群は適応段階の割合が多いことが明らかになった。本研究結果から今後の乳癌患者に対する効果的な危機介入が示唆された。 続きを見る
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伊藤, まゆみ ; 提橋, 美つ子 ; 神沢, 淳子 ; 石坂, 聖子
出版情報: 群馬保健学紀要.  19  pp.97-102,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />関頭術を受ける患者の術前における不安の推移と特徴を分析し,看護のあり方を検討することを目的に,脳神経外科病棟に入院中の患者5名を対象 に面接と参加観察を行い,以下の結論を得た。1.術前における不安は,入院,治療方針の決定,手術の説明,剃髪,手術室看護婦・麻酔科医の訪問などをきっかけとして推移する傾向があり,これらの場面の前後では意図的な看護介入が重要である。2.術前に身体症状・苦痛があり,「合併症による身体機能の障害に対する不安」が強い患者では,術後を見通したリハビリテーション開始の検討,医師との再度の話し合いの場の設定などが必要になる。3.術前に「合併症による身体機能の障害に対する不安」が強く,術後障害が現れなかった患者の場合,術直後の観察場面は術前不安に対する介入の場面となりうるが,「障害たしかめ体験」としての危険行動が,術直後の早い時期におこることも予測して看護する。4.関頭術患者の不安の特徴をとらえた術前訪問,術前教育方法を検討する必要がある。 続きを見る
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諸星, 好子 ; 今井, 理絵 ; 関口, 冨美子 ; 久保田, 豊子 ; 伊藤, まゆみ
出版情報: 群馬保健学紀要.  19  pp.103-106,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />全身麻酔下,側臥位で2時間以上の手術を受ける患者を対象に,ハイドロコロイドドレッシング材による圧迫創予防方法の有効性の検討を行い,以 下の結果を得た。1.実験群65名中7名に,対照群88名中29名に圧迫創が発生し,発生率は実験群が有意に低かった。2.実験群の圧迫創発生部位は,肋骨部か大転子部の1カ所のみの発生であり,深遠度はI度からII度であった。対照群の圧迫創発生部位は,肋骨部と大転子部であり,その内の約半数は2カ所に発生が見られた。深達度は同様であった。3.全身麻酔下側臥位の強制体位固定においては,肋骨部と大転子部への圧の集中が示唆され,HCD使用とともに他の除圧方法の検討が必要である。4.全身麻酔下側臥位における圧迫創発生予防にHCDの使用が有効である。 続きを見る
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石坂, 聖子 ; 伊藤, まゆみ
出版情報: 群馬保健学紀要.  19  pp.107-112,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />関頭術後,片麻痺が増強した60歳女性患者の看護を経験した。患者は術後ADLが低下し,「セルフケア不足」と診断,看護介入を行ったが,リ ハビリテーションへの意欲がみられず,自己否定的感情を表出した。自己概念,感情,役割・関係を中心とした再データ収集とアセスメントを行い,「自己尊重の状況的低下」と診断を変更,介入を行ったところ,自己否定的感情の表出が減少し,リハビリテーションへの意欲が改善した。「自己尊重の状況的低下」に対する看護介入として,(1)機能的リハビリテーションを一時中止し,タッチング,マッサージを併用した傾聴,(2)家族のもつ力量をアセスメントした上での,患者が肯定的な自己評価を見いだすための,家族からの働きかけ,(3)患者と家族によるリハビリテーションの目標設定,が有効であった。 続きを見る
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福田, 春枝 ; 柳, 奈津子
出版情報: 群馬保健学紀要.  19  pp.113-118,  1999-03.  群馬大学医学部保健学科
概要: application/pdf<br />Departmental Bulletin Paper<br />第10回シアトル・パシフィック大学(Seattle Pacific University)夏期研修旅行について報告する。本学教官およ び学生(他9人,総勢31人)は,2週間ではあるが文化の異なる生活を体験しながら,講義や見学を通して,米国の看護について学ぶことができた。その体験や学びの一部を報告する。主な内容は,(1)21世紀の看護について示唆を与えてくれた講義内容の紹介,(2)今回初めて企画され見学したグッドサマリタン病院(Good Smaritan Hospital)の特徴的な分野の概要,(3)学生から最も高い評価を得た講義および見学施設についてである。また,アンケートに基づく研修内容の全般的な評価,講義や見学内容の評価を学生の感想を含めて報告する。研修は,全般的に良い評価が得られていた。充実した研修ができ,今後の看護を考える上での良い機会となり,有意義であったと認識した。 続きを見る
65.

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石田, 肇
出版情報: 群馬大学教育学部紀要. 人文・社会科学編.  48  pp.33-48,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
66.

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村上, 隆夫
出版情報: 群馬大学教育学部紀要. 人文・社会科学編.  48  pp.83-102,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
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関戸, 明子
出版情報: 群馬大学教育学部紀要. 人文・社会科学編.  48  pp.205-226,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
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金井, 由允 ; 新藤, 一男
出版情報: 群馬大学教育学部紀要. 人文・社会科学編.  48  pp.285-298,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper<br />Loanword accentuation in Japanese has a high degree of regularity, which is expressed in several types of rules. Among them, Kanai's rules (1997) are taken up and reformulated into constraints of Optimality Theory. We will see how well Optimality Theory describes the loanword accentuation and discuss its advantages over the previous theory of rules and derivation. 続きを見る
69.

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森部, 英生
出版情報: 群馬大学教育学部紀要. 人文・社会科学編.  48  pp.329-360,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
70.

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佐藤, 浩一
出版情報: 群馬大学教育学部紀要. 人文・社会科学編.  48  pp.409-420,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
71.

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伊東, 徹 ; 石原, 一郎 ; 菅原, 英直
出版情報: 群馬大学教育学部紀要. 自然科学編.  47  pp.13-19,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper<br />Manganese phosphide is an interesting magnetic material showing a few magnetic phases which depend on both temperature and magnetic field. Its Curie temperature occurs in the range of room temperature. In this report, the possibility of the thermal decomposition in manganese phosphide has been examined by using Auger electron spectroscopy. Intensity variation of Auger electrons from phospher has been measured in the region from room temperature to 600℃. No conclusive evidence suggesting the thermal decomposition in manganese phosphide is found within the present measurements. 続きを見る
72.

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釜田, 重徳 ; 糸井, 勇人 ; 奥沢, 誠 ; 菅原, 英直
出版情報: 群馬大学教育学部紀要. 自然科学編.  47  pp.21-42,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper<br />We have developed an electron-spectrometer system designed for Aug er-pholoelectron coindence speclroscopy (APECS) in solids. The system consists of two hemispherical analyzers with specially designed electron-zoom lenses, an x-ray source, and an electron gun mounted on an ultrahigh vacuum chamber. The two analyzer-lens systems are made of titanium to reduce the work function variations due to inhomogeneous oxidation. Because of the small area (~ 1 X 1mm) selected by the electron lenses and the long measuring times, special care has been taken to shield out all stray and time-dependent magnetic Fields. In this paper, we present the details of the system and its performance. 続きを見る
73.

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信沢, 泰徳 ; 小池, 啓一
出版情報: 群馬大学教育学部紀要. 自然科学編.  47  pp.93-102,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
74.

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團, 名保紀
出版情報: 群馬大学教育学部紀要. 芸術・技術・体育・生活科学編.  34  pp.65-98,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper<br />In questo articolo dedicate alia ricerca sull' influenza esercitata dalla Tomba di Arrigo VII di Tino sulle tavole d'altare della scuola fiorentina del Trecento, innanzitutto sottolineo che gli affreschi, sia della Cappella Peruzzi che della Capplla Bardi, mostrino tanti punti riflettenti i contenuti della tomba imperiale pisana. Per esempio, sono il sistema di mettere al livello piu basso delle raffigurazioni la scena di morte, oppure la composizione simmetrica ed equilibrata con la figura principale, messa al centro ed isolata dalle altre. Quindi posso giudicare che quegli affreschi siano opere sotto l'influenza della Tomba di Arrigo VII. Per questo, penso che sia naturale che Giotto, nelle sue tre monumentali tavole d'altare del suo periodo tardo, abbia mostra-to degli avvicinamenti ancora piu ricercati ai moduli della tomba pisana I anche spinto dall'esistenza del polittico di Ugolino di Nerio in Santa Croce, opera che introdusse a Firenze il modulo senese del polittico caratterizzato dalla giustapposizione dei varii strati iniziato dalla "Maesta" di Duccio, e nello stesso tempo opera che subi molti influssi della tomba imperiale pisana. Per esempio, nel Polittico Stefaneschi di poco prima del 1330, la composizione principale e tutto dominata da quella del piano della tomba pisana dove l' Imperatore assiso sul trono e circondato dai cortigiani simmetricamente disposti. Mentre per quanto riguarda il sistema di mettere le figure stanti fiancheggianti la figura principale assisa nei rispettivi pannelli del polittico, penso che sia nato dal tabarnacolo sopra l' ingresso del Camposanto pisano o dalla decorazione esterna della chiesa di Spina in Pisa dove sono raffigurati i dodici apostoli stanti in una serie di edicole gotiche orizzontalmente disposte.il fatto che sia il polittico Baroncelli che quello di Bologna raffigurino nella predella "Cristo morto" sara un riflesso in Giotto del contenuto della Tomba di Arrigo VII recante nel suo pianterreno il sarcofago e la figura giacente dell' imperatore. D' altronde il Polittico di Ugolino porto una novita. Cioe al suo terzo registro mise la scena del Crocifisso, dato che si tratta della tavola d'altare maggiore di Santa Croce. Ma questa scelta poteva essere interpretata anche come il riflesso dell' esistenza del sarcofago e della figura giacente di Arrigo VII nel terzo registro scultoreo del pianterreno della tomba pisana. In ogni modo questo sistema di mettere allo strato superiore della raffigurazione principale del polittico, e cioe della figura di Madonna col Bambino, la scena del Crocifisso, inventato da Ugolino, influenzo a Firenze cominciando con il polittico di Maso di Banco a Santo Spirito. II polittico di San Pancrazio di Bernardo Daddi e il primo raggiungimento come opera della scuola fiorentina del polittico del tipo senese introdotto da Ugolino a Firenze, con la giustapposizione di tre ordini. E l'influenza della Tomba di Arrigo VII sembra diventi ancora piu palese perche qui per la prima volta il livello principale e occupato dalla Madonna assisa sul trono e dalle figure intere stanti, come nel caso del la disposizione statuaria del primo piano della tomba pisana. Data la grandiosita equilib rata, nutrita dalla Tomba di arrigo VII, l'opera dovette esercitare tante influenze sull' arte postuma, tra cui per esempio sul polittico di Pistoia di Taddeo Gaddi, oppure sul polittico della Pieve di Santa Maria a Impruneta, opera di Pietro Nelli e Tommaso Mazza. 続きを見る
75.

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高橋, 久仁子
出版情報: 群馬大学教育学部紀要. 芸術・技術・体育・生活科学編.  34  pp.213-228,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
76.

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西薗, 大実 ; 滝瀬, 和代 ; 峰松, 俊行 ; 高野, 庸
出版情報: 群馬大学教育学部紀要. 芸術・技術・体育・生活科学編.  34  pp.229-240,  1999.  群馬大学教育学部
概要: application/pdf<br />Departmental Bulletin Paper
77.

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岡本, 雄一郎 ; 荻原, 五郎 ; 天谷, 賢児 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  64  pp.4279-4284,  1998-12-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />A six-stroke diesel engine which was proposed by authors had second compression and second combustion strokes which were added on a four-stroke diesel engine. Numerical prediction and experiments on six-stroke engine which were carried out previously, showed that a six-stroke diesel engine could reduce NO concentration and shorter ignition delay could be attained in second combustion. Using various fuels on second combustion, it might be possible to improve more the emission characteristics. In this report, Methanol was used in the second combustion to improve the six-stroke engine performance. As the result, NO concentration in the exhaust gas decreased with delaying of the injection timing at second combustion and increased with an increase of the heat allocation ratio of second combustion stroke when the injection timing at first combustion stroke was fixed. Smoke wasn't exhausted at all when Methanol was put into the second combustion stroke. NO concentrations were affected by the heat allocation ratio and related with gas temperature. It was confirmed that the NO concentration of the Diesel fuel-Methanol engine become lower compared with that of the Diesel fuel engine. 続きを見る
78.

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新居, 利洋 ; 斉藤, 正浩 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  64  pp.3881-3887,  1998-11-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />This paper reports the suppression of soot emission from acetylene diffusion flame by applying electric field. The effects of applied voltage, polarity and spacing of electrodes on soot emission were investigated experimentally. The results showed that the shape of flame changed and the soot emission decreased with increasing the applied voltage. The polarity of applied voltage influenced to the shape of flame and the soot emission. When positive voltage was applied to the nozzle electrode, the flame length became short and the width at the flame tip was spread. And, more than 90% of soot emission was suppressed at over 200 kV/m of the intensity of electric field. The surface temperature of flame increased with increasing the applied voltage. Thus, it was considered that the increase of flame surface temperature promoted the soot oxidation. When negative voltage was applied to the nozzle electrode, on the contrary, only the 70% of soot emission was suppressed, because the flame temperature was comparable to that for non-applied voltage. 続きを見る
79.

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江原, 拓未 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  64  pp.3888-3893,  1998-11-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />In the previous paper, the authors clarified that an impingement spray have the slip flow region near the impingement point on the wall. Then, behavior of a diesel spray impinging on an inclined wall was modeled to make an empirical formula of impingement spray tip penetration. To introduce a new model of spray growth behavior, uniform velocity penetration of the spray growth behavior in the slip region were framed and included into the traditional formula about the free spray. The momentum conservation theory was applied to the spray of after slipping. The growth behavior of an impingement spray was expressed as the function of wall distance and inclined wall angle. Spray path length calcurated from this formula showed qualititaively well agreement with an actual measurement. 続きを見る
80.

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大橋, 隆弘 ; 本村, 貢
出版情報: 日本機械学會論文集. C編.  64  pp.4485-4491,  1998-11-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />The authors develop the expert system for process planning of combined cold forging sequence. Starting from the final product shape, the expert system designs a temporally pre-form shape and process by using case-based reasoning. Then, the temporally process is evaluated by the deformation analysis with using general purpose FEM code. When the result is not close to the post-form, temporary pre form shape is corrected by rules described on the cases with considering the result of the analysis. After then, corrected shape is analyzed by the FEM code again. The system repeats the above procedure until getting raw material and develops forging process plans. Thanks to this approach, the system designs forging sequences with using combined process, i. e. direct-indirect extrusion having different extrusion-ratio. A combined process requires lower energy and force than the ordinary in general, so the system is advantageous on developing the sequence design including combined process. The authors applied the system on actual forging example, and evaluate with experiment using plasticine. In the case, developed sequence design requires lower peak-manufacturing force than the ordinary sequence design including no combined process and only 62.5 [%] of the energy of the ordinary. 続きを見る
81.

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ISMAILOV, Murad ; ISHIMA, Tsuneaki ; TAKEDA, Chikashi ; OBOKATA, Tomio ; TSUKAGOSHI, Masayoshi ; KOBAYASHI, Kazumitsu
出版情報: JSME international journal. Ser. B, Fluids and thermal engineering.  41  pp.983-990,  1998-11-15.  社団法人日本機械学会
概要: application/pdf<br />Journal Article<br />Transient temporal and spatial spray characteristics have been investigated. A kind of practical fuel injector with swirl nozzle was examined under variable injection duration within the range of 0.25 to 4.0 ms and injection pressure 5.0 and 7.0 MPa. The fuel spray was injected at a cycling frequency of 50 Hz in a room under normal atmospheric condition. Considered details of sub-millisecond transient dynamics were observed by using a high-speed video camera with temporal resolution of 24.69 μs(40500 frames / s). The results indicate that investigated spray consists of two incorporated flow fractions that are a core jet and a quasi-umbrella droplets spray simultaneously moving down and swirling in local cross-axis domains. Instantaneous transient values of axial and radial penetration were accurately evaluated and analyzed. It was observed that after actual injection a post-injection of fuel droplets occurs and the time-delay and lifetime of these droplets were systematically estimated. 続きを見る
82.

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内山, 靖 ; 榎本, 香織 ; 永田, 晟
出版情報: 体力科學.  47  pp.925-925,  1998-11-01.  日本体力医学会
概要: application/pdf<br />Journal Article
83.

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岡本, 雄一郎 ; 荻原, 五郎 ; 天谷, 賢児 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  64  pp.3503-3509,  1998-10-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />A Six-stroke diesel engine was developed and its performance was evaluated. This engine had second compression and second combustion strokes which were added on the four stroke diesel engine. To control the fuel injection ratio and injection timings for first and second combustion strokes independently, two fuel pumps were attached to the engine. Effect of the fuel allocation ratio between first and second combustion strokes on the engine performance was investigated. Engine performance of the six stroke diesel engine was compared with that of the four stroke diesel engine which was the base engine of the six stroke engine. As a result, NO concentration in the exhaust gas decreased with a delaying of injection timing at second combustion stroke, but the injection timing at first combustion stroke didn't influence NO concentration. NO concentration decreased with an increase of allocation fuel ratio into the second combustion stroke. A trade-off relation between NO and soot concentration was observed against the change of allocation ratio. From the comparison between six and four stroke engine, it was confirmed that the NO concentration of the six stroke engine becomes lower than that of the four stroke engine. 続きを見る
84.

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江原, 拓未 ; 新井, 雅隆
出版情報: 日本機械学會論文集. B編.  64  pp.3510-3516,  1998-10-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />In this paper, behavior of a diesel spray impinging on an inclined wall was experimentally investigated in a pressurized vessel. In order to clarify the wall effect on a diesel spray structure, a relative angle of the inclined wall to the spray axis was varied. Spray penetration along the wall was observed optically and compared with that of a free spray. To observe an internal structure of the spray, it was visualized by a YAG laser sheet light and its tomographic image was captured on a film. The photo-image on a film was taken into an image analyzing computer using a high resolved image scanner. High density ridges in the tomographic image were extracted to clarify the internal structure of an impingement spray. Further, the growth characteristics of impingement spray was observed by a high speed photograph. To evaluate various spray motion quantitatively, a spray path penetration which described a development of a spray tip along the wall was used. As the result, the slip flow region of spray was found near the impingement point on the wall. It seemed that the injected fuel does not make a mixture and slipped on the wall surface in this slip region. The length of this region was measured in various impingement wall condition. 続きを見る
85.

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NAGAI, Ken-ichi ; KASUGA, Kunio ; KAMADA, Masaki ; YAMAGUCHI, Takao ; TANIFUJI, Katsuya
出版情報: JSME international journal Series C Mechanical systems, machine elements and manufacturing.  41  pp.563-569,  1998-09-15.  社団法人日本機械学会
概要: application/pdf<br />Journal Article<br />Experimental results are presented on chaotic oscillations of a post-buckled reinforced beam subjected to lateral excitations.The beam is partially reinforced and is clamped at both ends.One end of the beam is arranged to move to an axial displacement by an elastic spring.The beam is deformed to a post-buckled configuration by the axial constraint.Under the post-buckled condition of the beam, chaotic responses are generated in specified regions of exciting frequency.The chaotic responses are examined by the Fourier spectrum, the Poincare projection and the maximum Lyapunov exponent.It is found among other tings that the chaos of the reinforced beam is mainly generated with the lower modes of vibration.The instability regions of chaos as well as the effect of inertia in the axial direction are also examined. 続きを見る
86.

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宮澤, 三造
出版情報: 生物物理.  38  pp.S154-S154,  1998-09-07.  日本生物物理学会
概要: application/pdf<br />Journal Article
87.

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新井, 雅隆
出版情報: 日本機械学會論文集. B編.  64  pp.2390-2390,  1998-08-25.  日本機械学会
概要: application/pdf<br />Journal Article
88.

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永井, 健一 ; 大山, 貞夫 ; 山口, 誉夫
出版情報: 日本機械学會論文集. C編.  64  pp.2816-2823,  1998-08-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Analytical results are presented on chaotic vibrations of arches with axial elastic constraints. The arch with variable-cross-section is subjected to a periodic lateral force. The mode shape function proposed by the senior author-satisfies four sets of boundary conditions combined with a simply supported end and a clamped end. Basic equation is reduced to an ordinary differential equation of multiple-degrees-of-freedom system by the Galerkin procedure. Steady-state responses of the arches are calculated by the harmonic balance method. When the arch is contained simply supported condition, chaotic responses are excited easily in a specific frequency region. The chaotic responses are examined by the Runge-kutta-gill method. Following conclusion was obtained. In the chaos of the arch with the rigid axial constraint, many natural modes of vibration of both symmetric and asymmetric modes are excited simultaneously. The Lyapunov dimension increases as the rigid axial constraint of the arch becomes more tight. Furthermore, the chaotic attractors in the Poincare section show fractal geometries. 続きを見る
89.

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長屋, 幸助 ; 塚越, 正人 ; 小杉, 泰裕 ; 村上, 雅人
出版情報: 日本機械学會論文集. C編.  64  pp.2520-2527,  1998-07-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />The present article discusses a modeling and control of high-T_c superconducting levitation system. The paper first clarifies analytical expressions for obtaining nonlinear levitation force given by the present author, then presents at vibration control method in which feedback currents involving frequency weights. In the method, an addition of a square of the displacement and currents in a frequency domain is taken as a cost function. Optimal coefficients of the transfer function of the controller are obtained by minimizing the cost function. Hence, the spillover instability due to the nonlinear vibration will be redriced. Numerical calculations have been carried out for some typical problems. To validate the present method, experimental tests also have been carried out. 続きを見る
90.

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井開, 重男 ; 樫本, 弘 ; 大沢, 恵一 ; 長屋, 幸助
出版情報: 日本機械学會論文集. C編.  64  pp.2542-2549,  1998-07-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />This paper presents an actuator with a sensor for controlling vibrations of machines. It consists of a voice coil type electromagnetic actuator connected to piezoelectric sensor and a coil spring. The actuator is used for controlling a motor laid on the beam. The disturbance force due to the centrifugal force of the motor is detected by the sensor, and the force which is equivalent to the disturbance force is applied to the motor and the beam by the actuator. This implies that the disturbance force is canceled. The control technique as just mentioned has advantages because it reduces the vibration in the low frequency region, in addition, the actuator becomes compact, and the control force becomes small. But the control is insufficient for controlling the resonance peak. The PD control is available for reducing the resonance peak, but the displacement and velocity sensors are required. In the present article, a method of vibration control of disturbance cancellation combining the PD control is presented in which both the displacement and velocity sensors are not required. The analytical results for obtaining the control current and the response of both the motor and beam have been obtained. To validate the present actuator sensor system and the control method, experimental tests are carried out. 続きを見る
91.

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論文
神宮, 利夫
出版情報: 日本機械学會論文集. A編.  64  pp.1731-1737,  1998-06-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Experience has shown that a bolt-nut assembly system properly tightened can be loosened under vibrating load or impact. This paper experimentally investigates the loosening response of an assembly when a stress wave is transmitted from a gross area of a bolt, a face of a circular disk, or a screw thread of the thick circular disk assembly fastened by the bolt-nut unit. When a falling bar strikes the opposite side of a threaded rod fastened to the circular disk, or a falling circular pipe collides with the circular disk or with the anvil attached to the end of a screw, a stress wave propagating from the collision interface is transmitted into the assembly. The axial stress of a bolt tightened by a hexagonal nut in conjunction with a plain washer is measured, while a number of incident waves are impinged into the assembly. The shift of axial stress due to the stress wave transmitted from the portion of the screw thread is the largest. The cause of the loosening is investigated by observing the stress waves transmitted into the circular disk assembly system. 続きを見る
92.

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新井, 雅隆 ; 天谷, 賢児 ; 長倉, 邦仁
出版情報: 日本機械学會論文集. B編.  64  pp.1925-1931,  1998-06-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />Laser induced fluorescence method was applied for the measurement of NO concen tration in the propane and methane diffusion flames. A tunable, narrow band ArF excimer laser was used to excite the D (υ′=0) ←X (υ″=1) band of NO molecule. Emission spectrum of the induced light by a laser beam was measured by a spectroscope. Spectrum of the induced light from the diffusion flame was compared with that of the premixed flame. Although the spectrum had only NO fluorescence components on premixed flame, a lot of strong spectrum components related to the laser induced incandescence of the soot and laser induced breakdown appeared in the spectrum from the diffusion flame. NO fluorescence component was picked out from the emission spectrum with traversing the irradiate position of laser beam in order to obtain the accurate distribution of NO fluorescence on the flame axis. In this paper this method was named as S-LIF method. A planer laser induced fluorescence (P-LIF) method was tried to measure the distribution of NO fluorescence on the flame axis. In the P-LIF method, an interference filter was used to remove the obstructive light component from the LIF image. NO fluorescence distribution measured by P-LIF method was compared with that of S-LIF method. As the result, the P-LIF image qualitatively agreed with the data of S-LIF. It was confirmed that the interference filter did not remove completely the obstructive light components. 続きを見る
93.

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Dobashi, Toshiaki ; Koizumi, Jun-ichi ; Kita, Rio
出版情報: Journal of Chemical Physics.  108  pp.9537-9539,  1998-06-08.  American Institute of Physics
概要: application/pdf<br />Journal Article
94.

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藤沢, 延行 ; 中林, 貴光 ; 池本, 宏一郎 ; 長屋, 幸助
出版情報: 日本機械学會論文集. B編.  64  pp.1293-1298,  1998-05-25.  日本機械学会
概要: application/pdf<br />Journal Article<br />The active control of vortex shedding from a circular cylinder by rotary ocillations is studied experimentally using neural networks, which optimizes automatically the control parameters such as the phase lag and the feedback coefficient. This optimization procedure is applied to find out an optimum position of reference probe to attenuate the vortex shedding effectively. The attenuation effect of vortex shedding under this control is investigated by measuring the velocity fluctuations in the cylinder wake and the unsteady pressure distributions over the cylinder surface. It is found that the drag and lift forces acting on the cylinder are reduced under the optimum reference control in comparison with the control under other reference positions as well as those of the stationary cylinder. 続きを見る
95.

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寺石, 雅英 ; 寺石, 悦章
出版情報: 群馬大学社会情報学部研究論集.  5  pp.1-18,  1998-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />Since the liberalization of the Indian economy in 1991 the Advance of Japanese firms into the Indian business world has been promoted. One of the keys to success is whether the firm can transplant its information sharing organization, a source of Japanese firms' competitive advantage, to Indian society. Although this applies to any country, in the case of India special stress is necessary, because caste and other Hindu-specific cultural characteristics have been generally regarded as strong obstacles to Japanese management, in which equality and cooperation between members are necessary. Caste have two correlate aspests-vertical relationships, for example of social classes or the division of work, and horizontal relationships, for example of community or network. Until now the former has been emphasized in Japan. In this paper, however, a careful consideration is given to the latter. It is concluded that a firm in order to transplant its information sharing organization to Indian society must assume the character of the local community, a character that has the spirit of mutual aid. 続きを見る
96.

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森谷, 健
出版情報: 群馬大学社会情報学部研究論集.  5  pp.19-38,  1998-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />In arguments on community oriented information and information-oriented region policy, little attention has been paid to the subject and process of community oriented information production. It is significant to know that community oriented information is given, not only by community media, but also the process of community oriented information production, and that, though needless to say, the process is operated by the residents, local organizations, local government, private enterprises, non-profit organizations, and so on. The purpose of this paper is to reconsider some frameworks of arguments on community oriented information and to argue its importance of the subject and the process of community oriented information production in them. 続きを見る
97.

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仲田, 誠
出版情報: 群馬大学社会情報学部研究論集.  5  pp.39-57,  1998-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />The aim of this article is to seek for a view point from which we could see the "real" meaning of the Information-Society. The concept of Actuality, which suggests the possibility of a new kind of reality, seems to give us a useful clue in this respect. Contrary to the popular belief that there is only one reality in our world, it is possible to conceive of another level of reality ; Actuality. Actuality appears to be closely related with the state of our minds, the meaning of this world and our beliefs and emotions, while Reality has almost nothing to do with this world of "actual" meaning. The state of our minds without a sense of Actuality seems to cause a various kinds of mental illness, including the myth of Information-Society. 続きを見る
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小林, 修一
出版情報: 群馬大学社会情報学部研究論集.  5  pp.59-77,  1998-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />This paper discusses the effects of electric media on our society. The possibility of constructing the media loop in our social life is examined in this paper, with the discussion on the combination of the thought and sensitivity and the media which spread in our life. The effects of electric media are seen clearly in the function of TV and computer in our society. And the metapholical reconstruction of both reality and mind is significant. 続きを見る
99.

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南谷, 覺正
出版情報: 群馬大学社会情報学部研究論集.  5  pp.79-101,  1998-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />Two Gallants, the sixth story in James Joyce's Dubliners, is one Joyce himself deemed to be very important. This essay is an attempt to explicate this story from Florence L. Walzl's viewpoint of ""betrayal, social, political, and religious."" Special focus is placed on the characters' motives on different levels and the significance of the gold coin introduced at the end of the story. 続きを見る
100.

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南谷, 覺正
出版情報: 群馬大学社会情報学部研究論集.  5  pp.103-126,  1998-03-20.  群馬大学社会情報学部
概要: application/pdf<br />Departmental Bulletin Paper<br />When Tanizaki Jun'ichiro wrote Shunkin Sho (1933), he used "Barbara of the House of Grebe," the second story of Thomas Hardy's A Group of Noble Dames (1891), as a source of inspiration. This essay is an analysis of Hardy's story and an attempt to ascertain what elements Tanizaki incorporated, into his novelette, while appreciating what he modified to suit his artistic intentions. In the process, a number of controversial issues concerning Shunkin Sho are discussed in detail. 続きを見る