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自然エネルギー発電システムの構築
Get PDFIn recent years, power generation using renewable energy power sources, such as sunlight and wind force, attracts attention. The authors built the hybrid type renewable energy power generation system which combined a solar cell and wind power generation. This paper describes the composition and the characteristic of the renewable energy power generation system installed in the Department of Electric and Electronics Engineering, Nagano National College of Technology.departmental bulletin pape
斜め補剛材を有するＩ形ばりの挙動特性
Get PDFIt is generally known that web with a slant stiffener has shear strength bigger than perpendicular stiffener. Such the web with a slant stiffener are effective for the middle shoe of continuation beam, but there is the article of Yonezawa (1978) in Japan, Dubas (1986) in foreign country, but there are few studies about web with a slant stiffener. The study is aimed for elucidating the behavior of the I-section beam with slant stiffener by using SolidWorks. This example of Analysis is done with initial imperfection.departmental bulletin pape
リンゴ圧搾残渣のメタン発酵回分実験における基質投与量の影響
Get PDFMesophilic Methane fermentation of apple pomace was tested in laboratory scale (volume 1.8L) fermenter stirred with impeller. Seed sludge was obtained from sewage sludge treatment plant of Nagano-city, and apple pomace was gained by apple-juice production. The experiment was conducted at a temperature of 37 ℃ , and apple pomace (50,100,150,200g-wet) was added sequentially when substrate consumed entirely. When adding weight was 200g-wet, irreversible influence of methanogenesis by decreasing of pH was observed. Methane yield of apple pomace was estimated 243-292 mL-CH4/g-VS in these conditions.departmental bulletin pape
鋼橋の落下解析
Get PDFThe bridge removal method separates you greatly, and there are two. A method I divide it while the first puts a ground support under the bridge, and hanging it by a crane, and to remove, the second are the fulcrums or, in the neighborhood, cut the lower part of the bridge and are law to remove at a stretch. The latter continues having a good point that I finish cost cheaply predominantly in comparison with the former and has the bad point. The fall removal was said to have a problem in a safety and scattering thing. Most are based on experience, and this is because it lacked in a dynamics mark and grounds to investigate security analytically. This study provided data aiming at safe establishment by the fall removal method of the steel bridge.departmental bulletin pape
