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| 1.
学位論文 |
学位
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青柳, 宏隆
概要:
Thesis or Dissertation<br />修士論文
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学位
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阿部, 克也
概要:
Thesis or Dissertation<br />修士論文
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| 3.
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学位
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阿部, 弘規
概要:
Thesis or Dissertation<br />修士論文
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| 4.
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学位
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新井, 隆広
概要:
Thesis or Dissertation<br />修士論文
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| 5.
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学位
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新井, 勇輝
概要:
Thesis or Dissertation<br />修士論文
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| 6.
学位論文 |
学位
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井上, 雅人
概要:
Thesis or Dissertation<br />修士論文
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| 7.
学位論文 |
学位
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猪瀬, 世親
概要:
Thesis or Dissertation<br />修士論文
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| 8.
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学位
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Tiwari, Bishnu Prasad
概要:
Thesis or Dissertation<br />修士論文
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| 9.
学位論文 |
学位
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植田, 達也
概要:
Thesis or Dissertation<br />修士論文
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| 10.
学位論文 |
学位
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小倉, 貴之
概要:
Thesis or Dissertation<br />修士論文
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| 11.
学位論文 |
学位
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小野, 好喜
概要:
Thesis or Dissertation<br />修士論文
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| 12.
学位論文 |
学位
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笠, 亮太
概要:
Thesis or Dissertation<br />修士論文
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| 13.
学位論文 |
学位
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金田, 健児
概要:
Thesis or Dissertation<br />修士論文
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| 14.
学位論文 |
学位
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河原, 啓
概要:
Thesis or Dissertation<br />修士論文
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| 15.
学位論文 |
学位
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神澤, 高貴
概要:
Thesis or Dissertation<br />修士論文
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| 16.
学位論文 |
学位
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菊池, 秀輔
概要:
Thesis or Dissertation<br />修士論文
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| 17.
学位論文 |
学位
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桐生, 弘武
概要:
Thesis or Dissertation<br />修士論文
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| 18.
学位論文 |
学位
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窪田, 直輝
概要:
Thesis or Dissertation<br />修士論文
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| 19.
学位論文 |
学位
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郡, 裕路
概要:
Thesis or Dissertation<br />修士論文
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| 20.
学位論文 |
学位
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齋藤, 弘享
概要:
Thesis or Dissertation<br />修士論文
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| 21.
学位論文 |
学位
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櫻井, 正人
概要:
Thesis or Dissertation<br />修士論文
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| 22.
学位論文 |
学位
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菅原, 慶
概要:
Thesis or Dissertation<br />修士論文
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| 23.
学位論文 |
学位
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鈴木, 貴大
概要:
Thesis or Dissertation<br />修士論文
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| 24.
学位論文 |
学位
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高橋, 翔
概要:
Thesis or Dissertation<br />修士論文
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| 25.
学位論文 |
学位
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高橋, 直弘
概要:
Thesis or Dissertation<br />修士論文
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| 26.
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田邊, 彰悟
概要:
Thesis or Dissertation<br />修士論文
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| 27.
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塚越, 紀人
概要:
Thesis or Dissertation<br />修士論文
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| 28.
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学位
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月田, 雄介
概要:
Thesis or Dissertation<br />修士論文
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| 29.
学位論文 |
学位
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内藤, 真弘
概要:
Thesis or Dissertation<br />修士論文
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| 30.
学位論文 |
学位
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中, 祥司郎
概要:
Thesis or Dissertation<br />修士論文
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| 31.
学位論文 |
学位
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中野, 宜泰
概要:
Thesis or Dissertation<br />修士論文
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| 32.
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学位
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南波, 徹
概要:
Thesis or Dissertation<br />修士論文
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| 33.
学位論文 |
学位
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袴田, 勇人
概要:
Thesis or Dissertation<br />修士論文
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| 34.
学位論文 |
学位
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橋本, 達也
概要:
Thesis or Dissertation<br />修士論文
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| 35.
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学位
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藤井, 覚
概要:
Thesis or Dissertation<br />修士論文
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| 36.
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学位
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本望, 修平
概要:
Thesis or Dissertation<br />修士論文
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| 37.
学位論文 |
学位
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増田, 浩太郎
概要:
Thesis or Dissertation<br />修士論文
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| 38.
学位論文 |
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茂木, 雅晃
概要:
Thesis or Dissertation<br />修士論文
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| 39.
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森島, 一樹
概要:
Thesis or Dissertation<br />修士論文
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| 40.
学位論文 |
学位
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森村, 隆志
概要:
Thesis or Dissertation<br />修士論文
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| 41.
学位論文 |
学位
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山本, 裕康
概要:
Thesis or Dissertation<br />修士論文
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| 42.
学位論文 |
学位
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吉原, 由貴
概要:
Thesis or Dissertation<br />修士論文
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| 43.
学位論文 |
学位
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渡部, 弘基
概要:
Thesis or Dissertation<br />修士論文
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| 44.
学位論文 |
学位
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スパチャイ, ルンウィワタンユー
概要:
Thesis or Dissertation<br />修士論文
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| 45.
学位論文 |
学位
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薛, 玮
概要:
Thesis or Dissertation<br />修士論文
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| 46.
学位論文 |
学位
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チュアン, ヴァン コーア
概要:
Thesis or Dissertation<br />修士論文
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| 47.
学位論文 |
学位
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陳, 静
概要:
Thesis or Dissertation<br />修士論文
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| 48.
学位論文 |
学位
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陳, 増銀
概要:
Thesis or Dissertation<br />修士論文
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| 49.
学位論文 |
学位
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Parajuli, Raj Kumar
概要:
Thesis or Dissertation<br />修士論文
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| 50.
学位論文 |
学位
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南雲, 裕司
概要:
Thesis or Dissertation<br />修士論文
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| 51.
学位論文 |
学位
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村澤, 直樹
概要:
Thesis or Dissertation<br />学位記番号：工博乙112
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| 52.
学位論文 |
学位
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小野里, 直樹
概要:
Thesis or Dissertation<br />学位記番号：工博甲436
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| 53.
学位論文 |
学位
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Sripramai, Keerati
概要:
Thesis or Dissertation<br />Generally, in order to improve a regional safety for disasters and accidents, indispensable
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strategies are not only a reinforcement of the governmental ability, but also a strengthening of the cooperative relationship between government and non-government which means volunteers, residents and so on. Needless to say, the effective strategy should be varied depending on the actual situation in the subject area, because there is no guarantee that some strategies or countermeasures based on the common-sense values of one subject area will be of universal application for all other regions. Especially, such an effective strategy will also differ according to whether the subject area is in the developed country or in the developing country.\nConsequently, the process to make clear about what the fundamental problems are in the subject area must be an essential for examination of such solutions as above.\nIf I tried to overview the actual situation of various places about firefighting as an example, then I can find some distinctive tendencies. If I overviewed the recent Japanese situation for firefighting as an example, it may be said that there is a highly-developed fire fighting system which can extinguish a fire immediately except for a large number of simultaneous fires in a huge earthquake. It may be said that there is an effect of a smooth cooperative relationship between governmental and non-governmental fire fighting. In the Japanese system, it is worth specially mentioning that the voluntary fire fighting plays a part in the official fire fighting on a legal basis.\nOn the other hand, it is unusual for most developing countries to have such a highly-developed fire fighting system. It ought to be important for such most developing countries to make full use of the existing community resources, because it is impossible to reinforce immediately the governmental infrastructures.\nNeedless to say, even if in Japan, it is not that there are not problems at all. It has been long since some researchers said a weakness of a community leads to an undesirable situation not only in fire protection, but also in every respect. Regarding to the disaster prevention or regional fire fighting validity, it has been pointed out that a resident who depends overly on an existing highly-developed disaster prevention system tends to lack a consciousness of the parties concerned. It is true that the Basic Act on Disaster Control Measures which was triggered by “Isewan Typhoon” had promoted the remarkable infrastructure improvements for disaster prevention, and also had succeeded in decreasing the number of victims per year by natural disasters from several thousands to about hundreds. Therefore, it can be also said that the subject of the current Japanese disaster prevention issue is expanding to a reinvigoration of a community such as how to revitalize a consciousness of the parties concerned, after establishment of the Basic Act on Disaster Control Measures in Japan.\nIt follows from what has been said thus far that the process to make clear about what the\nfundamental problems are in the subject area must be an essential for each place, and that the effective countermeasure ought to be varied depending on the actual situation of the subject area.\nEspecially, I may say that the differences in disaster prevention issues between the developing countries and the developed countries ought to become clear by focusing on the relationship between government and non-government.\nAs mentioned-above, in this study, focusing on a fire fighting as an examination case, I would consider the differences on the fundamental problems and effective countermeasure for regional fire fighting validity between developing countries and developed countries. I would take the case of Thailand as a developing country, and also take the case of Japan as a developed country.\nIn summary, the following results were obtained: Firstly, regarding to the investigation on Bangkok, Thailand, as a case study of a developing country, the following were grasped by some investigations. Namely, even though there are some voluntary firefighting groups in each district in addition to the governmental fire fighting, so far from existing a cooperative relationship, there are many conflicts between them.\nAnd such conflicts hinder the improvement of the efficiency of the comprehensive regional fire fighting. There is no doubt about the necessity of the further infrastructure improvements for disaster prevention. However it is also true that such further infrastructure improvements take a long time and a lot of cost. Therefore, it was considered that the most practical countermeasure would be an improvement of the efficiency of the regional fire fighting by an establishment of the cooperative relationship between the governmental and volunteer fire fighters which was a typical case of the existing community resources. In order to put this countermeasure into practice, in this study, I have proposed the Regional Fire Fighting Validity Map which can show the actual situation and the effect of the establishment of the cooperative relationship between them, and also held several workshops in which both members were attended. As a result, this practical approach succeeded in achievement the above purpose. I heard that nobody succeeded in establishment of such a cooperative relationship between them in the past. Therefore, this ought to be the first case in Thailand history. Moreover, the spread of this strategy to the other districts is expected in the future.\nSecondly, regarding to the investigation in Japan, as a case study of a developed country, the following were grasped by some investigations. It has been long since some researchers emphasized the importance of a reinvigoration of a community for the further improvement of the regional fire fighting validity, and these researchers also emphasized only the importance of the altruistic or charitable behavior for an achievement of the reinvigoration of a community. In contrast, it was found from the results in this study that a person who had understood deeply the existence of the fire risk which spread from its neighborhood, had a basic tendency to have a motivation to awaken a neighbor’s activity for a regional fire spread risk reduction. Especially, it is quite interesting that such a basic tendency can be explained as not only an altruistic motive but also a selfish motive. Furthermore, I made some contents in order to promote such a motivation, and verified its usefulness. In this sense, practical use of this strategy is expected in the future.<br />学位記番号：工博甲442
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| 54.
学位論文 |
学位
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Sirimirin, Meesuk
概要:
Thesis or Dissertation<br />Bio-oil from biomass through thermochemical conversion is not readily usable as fuel because
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of its extremely high oxygen content and relatively poor storage stability. Thus, fast pyrolysis to upgrade the quality of biomass is possible by means of thermochemical pathway through which pyrolysis oil is upgraded via hydroprocessing to motor-vehicle grade oil product. The catalytic treament of biomass under hydrogen pressure (i.e., hydropyrolysis) is an attractive route to obtainin high yield of liquid hydrocarbons, such as benzene, toluene, and xylene (BTX). The effect of catalyst is to convert oxygen in bio-oil to H2O, CO, and CO2. The decrease in oxygen content contributes to a remarkable increase in the heating value of bio-oil. We have proposed in our research the utilization of nickel-loaded brown coal (Ni/LY) char as an alternative catalyst for upgrading the quality of bio-oil product. The Ni/LY char was prepared according to the ion-exchange method as it is inexpesive and there are reports that the metallic Ni disperses well on the support in Ni/LY char with large specific surface area. Loy Yang brown coal was used in the preparation of the catalyst because it contains carboxyl and phenol groups which can exchange ions with metals. \nIn this study the effects of catalysts (Ni/Al2O3, Ni/LY char, Dolomite, and CoMo/Al2O3) on product yield and composition of bio-oil were investigated. Then the catalytic behavior of Ni/LY char was examined and employed to obtain the bio-oil with relatively low oxygen content that can be used as liquid fuel and chemical feedstock. \nIn chapter 2, pyrolysis of rice husk was carried out in fluidized bed reactor. The effect of different catalysts (i.e., Ni/Al2O3, Ni/LY char, Dolomite and CoMo/Al2O3) was investigated. The results showed that a low molecular weight and low oxygen content of bio-oil are obtained with pyrolysis using catalyst. Catalysts supported the deoxygenation reaction by convert the oxygenated compounds of bio-oil to form H2O, CO2 and CO. Best results are obtained with Ni/LY char and CoMo/Al2O3 which can reduce the oxygen content of bio-oil from 33.8% without catalyst to 27.6 and 24.9% with Ni/LY char and CoMo/Al2O3, respectively. The decreasing of the oxygen content of bio-oil contributes to a remarkable increase in HHV. However, Ni/LY char is deemed more favorable than CoMo/Al2O3 in term of the production cost of bio-oil. \nIn chapter 3, hydropyrolysis of rice husk without catalyst was performed in a fluidized bed reactor. The effects of parameter conditions (i.e., hydrogen pressure, temperature, gas residence time (GRT), and gas hourly space velocity (GHSV)) on product yields were studied to determine the optimal condition for bio-oil yield. The hydropyrolysis under 0.1 MPa hydrogen gas produced bio-oil with relatively low oxygen content. The optimal hydropyrolysis temperature for the production of bio-oil from rice husk was found to be 500 °C and GRT of 2.7 s. The high GHSV of 4891 h-1 was found to be more favorable for the production of bio-oil due to the reduced residence time of vapors in bed material, maximizing the bio-oil yield at about 47.1 wt.%. \nIn chapter 4, hydropyrolysis of biomass materials (i.e., rice husk, coconut shell, and pine) was conducted in a fluidized bed reactor to evaluate bio-oil production. The hydropyrolysis was performed at 500 °C, GRT of 2.7 s and GHSV of 4891 h-1. The bio-oil yields from rice husk, pine, and coconut shell were 47.1, 64.5, and 52.1 wt.%, respectively. The bio-oils were analyzed with an elemental analyzer, Karl-Fischer moisture titration, Fourier transform infrared (FTIR) spectroscopy, and gas chromatography/mass spectrometry (GC/MS). The results showed that the bio-oils from all biomass have high oxygen content and oxygenated compounds such as phenols. The HHVs of bio-oils from pine and coconut shell are higher than that of rice husk due to their high carbon content, while rice husk has the lowest HHV, which can be ascribed to its low carbon content and high oxygen content. It is advisable that the bio-oil products be further processed to remove the condensed water and oxygen content for chemical and/or biofuel production. \nIn chapter 5, hydropyrolysis of rice husk was carried out in a fluidized bed reactor at atmospheric pressure. The effects of different catalysts, on the carbon conversion of rice husk and composition of bio-oils were studied. The experiments with catalysts under hydrogen atmosphere to produce bio-oils with much lower oxygen content were performed. The results show that the oxygen content of bio-oils is markedly reduced because the oxygenated hydrocarbons are hydrocracked resulting in the formation of H2O, CO and CO2 when catalysts are introduced. The oxygen content of bio-oil under hydrogen atmosphere decreased from over 31.1% without catalyst to 25.9%, 20.5%, 26.5% and 10.1% with Ni/Al2O3, Ni/LY char, Dolomite and CoMo/Al2O3, respectively. The use of CoMo/Al2O3 and Ni/LY char under hydrogen atmosphere showed high activity to decrease the oxygen content, which leaded to a higher heating value and more aromatic hydrocarbons. These experiments indicated that catalytic hydropyrolysis is suitable for producing bio-oils with lower molecular weight and high aromatic hydrocarbons which are possible to use as a potential liquid fuel and chemical feedstock. \nIn chapter 6, catalytic hydropyrolysis of rice husk using Ni/LY char was carried out in a fluidized bed reactor in order to determine the bio-oil with the lowest oxygen content and investigate the effects of an inexpensive Ni/LY char activity, catalytic hydropyrolysis temperature, and volume fraction of Ni/LY char on product yield and composition of bio-oils. These conditions were tested at the optimal condition (i.e., temperature of 500 °C, GRT of 2.7 s and GHSV of 4891 h-1). In the presence of Ni/LY char the oxygen content of bio-oil decreased by about 16% compared with that of non-catalyst. Raising the temperature from 500 to 650 ºC reduced the oxygen content of bio-oil from 27.5% to 21.5%. The characteristics of bio-oil were analyzed by Karl Fischer, GC/MS, GPC, FT-IR, and CHN elemental analysis. The result indicated that hydropyrolysis of rice husk using Ni/LY char at temperature of 650 ºC produced bio-oil with relatively lower oxygen content, oxygenated compounds, high aromatic hydrocarbons, and high heating value. For the effect of volume fraction of Ni/LY char, which was investigated at the optimal condition for bio-oil yield, it was found that the oxygen content of bio-oils decreased, whereas the higher heating value of bio-oils increased when increasing the volume fraction of Ni/LY char. The bio-oil with the lowest oxygen content (20.7 wt.%) and the highest heating value (30 MJ/kg) was obtained with 75% volume fraction of the Ni/LY char. The catalytic hydropyrolysis oil contained more aromatic hydrocarbons with slightly reduced oxygenated compounds than that from the non-catalytic hydropyrolysis oil. High quantities of aliphatic and aromatic hydrocarbons were obtained from hydropyrolysis with volume fraction of Ni/LY char > 50%. The results indicated that the bio-oils from the hydropyrolysis, using high volume fraction of Ni/LY char (75 v/v%) at high catalytic hydropyrolysis temperature of 650 °C, contained more aromatic hydrocarbons with slightly reduced oxygenated compounds and could be used as liquid fuel and chemical feedstock.<br />学位記番号：工博甲443
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| 55.
学位論文 |
学位
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大島, 明
概要:
Thesis or Dissertation<br />学位記番号：工博甲444
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| 56.
学位論文 |
学位
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小林, 雅行
概要:
Thesis or Dissertation<br />学位記番号:工博甲447
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| 57.
学位論文 |
学位
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TRAN, QUANG VINH
概要:
Thesis or Dissertation<br />学位記番号:工博甲449
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| 58.
学位論文 |
学位
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楊, 情情
概要:
Thesis or Dissertation<br />学位記番号:工博甲451
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| 59.
学位論文 |
学位
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張, 桂玲
概要:
Thesis or Dissertation<br />学位記番号:工博乙111
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