Repository of NNCT (Nagano National College of Technology)
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CVD法を用いた絶縁性セラミックス膜の合成と特性評価
Alumina film was deposited on several metallic and ceramic substrates by thermal decomposition of metal-organic compound (aluminum-isopropoxide) using thermal CVD to get a insulated ceramic film. The film was characterized by a electric conductivity, morphology observation using scanning electron microscope (SEM), diffraction pattern of X-ray and film thickness.departmental bulletin pape
小中学校の音環境に関する調査研究 : 長野市と名古屋市を例として
This study aimed to sound environment of elementary and junior high schools in the questionnaire survey and noise measurement. The following results were obtained.
There may exceed 60dB at the site boundary noise of the school. The noise from a school is not serious problem in Nagano of the winter season. The results of the questionnaire, complaints of noise were 22% of the school in Nagano city. Comments received to school in Nagoya city was three times that of Nagano.departmental bulletin pape
救急駆けつけ搬送の救命制約時間信頼性を考慮した消防署・分署の配置に関する考察
In this paper, evaluation of emergency care service framework is developed to study network reliability using I.A method. Analyzing the present condition of an emergency business, in this study we examine the optimal location of fire stations and first-aid station. We propose an accessibility indicator of the travel time reliability to the urgent medical institution of an ambulance. In this paper, the above method is applied to Nagano urban area. In the experimental study, we verified location of fire stations and first-aid station affects a limit time to life-saving. We confirmed accessibility indicator practicality.departmental bulletin pape
UASB/DHS廃水処理システムによる食品加工排水の処理特性
Characteristics of food processing wastewater treatment was investigated in laboratoryscale continuous UASB/DHS system for 560 days. The UASB reactor was operated at HRT of 9 hours , while DHS reactor was operated at HRT of 4.5 hours
BOD removal of 88 ± 13 % was obtained at influent BOD concentration of 477 ± 193 mg/L. Similarly, SS removal of 91 ± 6 % was obtained at influent SS concentration of 278 ± 78 mg/L.departmental bulletin pape