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DADS 프로그램을 이용한 軍用 軌道車輛의 사격시 運動 解析
鄭仁洙 陸軍士官學校 1983 한국군사학논집 Vol.25 No.-
The object of this paper is to present a computer based method for analysis of spatial mechanical systems using DADS, which is a package program for Dynamic Analysis and Design System. A mechanical system consists of several rigid bodies connected by joints and springs. Some of the joint formulations and general equations of motion are presented. To illustrate the potential of the program, the motion of a tracked military vehicle during firing is simulated. The responses of forward fire, 45degree fire, and side fire are presented.
Hydrogen Peroxide as an Effective Disinfectant for Pasteurella multocida
정인수,김찬화,김현정,정원용 연세대학교의과대학 2014 Yonsei medical journal Vol.55 No.4
Pasteurella multocida (P. multocida) infections vary widely, from local infections resulting from animal bites and scratches to general infections. As of yet, no vaccineagainst P. multocida has been developed, and the most effective way to preventpathogenic transmission is to clean the host environment using disinfectants. In this study, we identified which disinfectants most effectively inhibited environmentalisolates of P. multocida. Three readily available disinfectants were compared:3% hydrogen peroxide (HP), 70% isopropyl alcohol, and synthetic phenol. In suspension tests and zone inhibition tests, 3% HP was the most promising disinfectantagainst P. multocida.
정인수,맹상위 한국농촌건축학회 2017 농촌건축 : 한국농촌건축학회논문집 Vol.19 No.1
The purpose of this paper is to suggest the preliminary data for the improvement of the senior centers’ indoor environment and the upcoming progress located in rural areas. In wanju county, 81.8% of seniors were enrolled in senior centers, and used the facility everyday. Also, most of the users tended to use the facilities between 12 a.m. and 6 p.m. The majority of users had lunch at the senior centers. The facilities of most senior centers were in poor condition, and some had their restroom outdoor. Also, most senior centers are exposed to high concentrations of carbon dioxide during winter. During this season, the thermal environment in the restroom was bad. However, the users’ level of the facilities’ satisfaction was positive. Senior centers have been operating the facilities with difficulties, due to the low financial support from the local autonomous organization. The indoor temperature in most centers, especially, was above 30℃ during summer on account of lack of funding for airconditioning. Therefore, it could be recommended that the local autonomous entity start regular check-ups and repairs for the poor indoor environment and facilities, with more financial support and active supervision of the management.