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김동성,김기동,고만기,Kim. Dong-Sung,Kim. Kee-Dong,Ko. Man-Gi 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
The design strength of panel zones, which was based on Krawinkler model, was investigated by comparing it with existing test and FEM results. The design strength overestimates of the strength of panel zones with thick column flange while it matches well with the strength of panel zones with thin column flange. More extensive studies are needed to develop a mathematical model which can properly define the inelastic behavior of panel zones with various column flange thicknesses and to determine a more rational design strength.
마이크로 채널 충전 과정의 유동 현상(I) - 유동 가시화 실험 -
김동성,이광철,권태헌,이승섭,Kim, Dong-Sung,Lee, Kwang-Cheol,Kwon, Tai-Hun,Lee, Seung-S. 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.10
Micro-injection molding and microfluidic devices with the help of MEMS technologies including the LIGA process are expected to play important roles in micro-system industries, in particular the bio-application industry, in the near future. Understanding fluid flows in micro-channels is important since micro-channels are typical geometry in various microfluidic devices and mold inserts for micro-injection molding. In the present study, Part 1, an experimental investigation has been carried out to understand the detailed flow phenomena in micro-channel filling process. Three sets of micro-channels of different thickness (40um,30um and 2011m) were fabricated using SU-8 on silicon wafer substrate. And a flow visualization system was developed to observe the filling flow into the micro-channels. Experimental flow observations are extensively made to find the effects of pressure, inertia force, viscous force and surface tension. A dimensional analysis for experimental results was carried out and several relationships A dimensionless parameters are obtained.
기종저(氣腫疽)에 대(對)한 몇가지 항생물질(抗生物質) 치료시험(治療試驗)
김동성,차연호,Kim, Dong Sung,Cha, Youn Ho 대한수의학회 1964 大韓獸醫學會誌 Vol.4 No.1
In the treatment of mice Aureomycin, Oil penicillin, Achromycin, Ambrasynth and Terramycin were effective on the Black-leg disease when they were administered about 4 to 5 hours before the death of control animals. Synthomycetin, however, was observed to be effective when administered 8 hours or more before the control death. Streptomycin seemed to be rather less effective than Black leg antiserum. It was not effective at all when given 19 hours before the death of control animal although there was a delay of taking death by 5 hours in the treated group. As was in mice, Streptomycin was little effective in the treatment of calves, while other antibiotics showed fine efficacy on the diseased animals. The diseased animals, when given with anitibiotics 37 hours before the death of control showed the rise of temperature($41^{\circ}C$ or more), swelling and redness on the site of infection and then recovcred to normal stage. In the treatment of calves, Aureomycin only delayed the taking death of the deseased animals by 111 hours when administered 4 hours before the death of control animals. And other antibiotics, when given 4 hours before the death of control animals were effective, although the deseased animls developed symptoms such as hard breathing, anorexia and dropsical swellings. Oil penicillin was observed to be comparatively larger in its efficacy on the treatment of Black leg disease.
무선 센서네트워크를 이용한 애완견용 무선 관리 시스템의 설계 및 구현
김동성,Kim, Dong-Sung 한국정보통신설비학회 2007 정보통신설비학회논문지 Vol.7 No.1
This paper proposes a wireless management system for a pet dog using wireless sensor network. The developed intelligent wireless management system is compose of a central control system, auto-feeder, mini-guidance robot, and wireless sensing devices. The developed system uses three types of sensed data such as light, temperature, and sounds from a pet dog and surrounded environment respectively. The presented design method using these data provides an efficient way to controlling and monitoring the pet dog. The implemented system can be used as a design framework of portable device for the pet management.
김동성,차연호,박정문,Kim, Dong Sung,Cha, Youn Ho,Pack, Jung Moon 대한수의학회 1964 大韓獸醫學會誌 Vol.4 No.1
A comparative experiment on the duration of immunity and antigenicity of the Black-leg vaccine was conducted and following results were obtained. Animals vaccinated with formalin and modified living vaccine were equally survived when they were challenged 12 months after the vaccination. It was further found that the rate of survival was 50 % on both groups when the animals were challenged 16 months after the vaccination, and no distinctive difference was observed between the two groups by means of protection power.
김동성,김기동,고만기,Kim,Dong-Sung,Kim,Kee-Dong,Ko,Man-Gi 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
The development of crash cushions is finally completed by full-scale vehicle crash tests. Since the current development of crash cushions is achieved by numerous repeated full-scale vehicle crash tests based on empirical and irrational methods, it requires a great amount of costs. In this research, the more rational procedure based on prototype design by static tests and computer simulation is suggested and it can minimize the number of full-scale vehicle crash tests.
김동성,조원철,김병선,이태식,Kim. Dong-Sung,Cho. Won-Cheol,Kim. Byung-Seon,Lee. Tae-Shik 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
This study is for the corrosion property of sprinkler pipe and the prevention solution. The main causes of corrosion are the deterioration of pipe and wrong installation of pipe. This study includes the property of stainless pipe that is widely used as sprinkler pipe and other kinds of pipe, the theory of corrosion procedure and the result of test that is performed to ascertain the advance degree of corrosion about `A` factory complex using pipe samples that were collected at designated point of each factory complex.
우기종저(牛氣腫疽)에 대한 예방약(豫防藥)과 항혈청(抗血淸)의 검정(檢定)을 위한 연구(硏究)
김동성,Kim, Dong Sung 대한수의학회 1968 大韓獸醫學會誌 Vol.8 No.2
Throughout the studies the following experimental results were summarized. 1. It was impossible to infect and kill the mice, weighing 10 to 12 gm, by inoculating 0.2ml of virulent Cl. chauvoei, diluted 1 to 10 with physiological saline, via subcutaneous, intramuscular, intraperitoneal or intraveonus, route. 2. The mice which were inoculated in brain with 0.03ml of Cl. chauvoei diluted 1 : 5120 with physiological saline were resulted in all death after infection, but not in case of attenuated strain even in dilution of one to five. 3. Virulent Cl. chauvoei were diluted with each of those of whole blood, erythrocytes and serum of horse, calf, swine, sheep, rabbit, guinea pig, chicken and duck, human plasma and 2% CaCl solution, and inoculated subcutaneously 0.25 to 0.5ml in mice, weighing 12 to 15gm. It was resulted in significant increase in virulence as comparing with the case of physiological saline solution except when horse and pig sera were used. Such a phenomena were not seen in attenuated strain. 4. Virulence of virulent Cl. Chauvoei could be increased significantly in rat, as the procedures used in mice, by suspending in whole blood, erythrocytes, serum, or plasma of various animals, or 2% $CaCl_2$ solution and by inoculating subcutaneously 0.5 to 10ml in rat, weighing 30 to 60 gm, as compared with those of control group which used physiological saline solutionos diluent. 5. Mice resisted 100 and 80 percent against challenge of $10^3$ and $10^4$ M.L.D.. respectively, 24 hours after inoculation of 0.5ml black leg antiserum. 6. Immune response to the black leg living vaccine in mice could be obtained more favorably in the group of respected vaccination rather than those of single inoculation and the most profitable inoculm size of the vacine was 0.5 to 1.0ml. 7. Challenge for the immunized mice could be carried out effectively 3 weeks after first vaccination. 8. Satisfactory results could be obtained by inoculating subcutaneously for the immunization and intracerebrally or subcutaneously for the challenge. 9. Mice which were inoculated with 0.5ml of black leg living vaccine via subtaneucously two times at seven days interval and 21 days after first inoculation and challenged with 5 and 10 M.L.D. of virulent strain, resited 100 and 70 to 80 percent respectively. Same results were obtainable in black leg killed vaccine as the procedures used in living vaccine. 10. There were significantly different resistances against the definite challenge does between the mice groups which were immnuized with the living vaccine diluted five or 10 times and the undiluted. 11. For the biological assay of black leg living vaccine and antiserum, satisfactory results could be obtained using mice.
클린룸 자동화재탐지설비의 성능위주 방재설계 적용에 관한 고찰
김동성,황철승,이상곤,조원철,이태식,Kim. Dong-Sung,Hwang. Cheol-Seung,Lee. Sang-Gon,Cho. Cheol-Won,Lee. Te-Shik 한국방재학회 2007 한국방재학회 학술발표대회논문집 Vol.2007 No.1
This study is to establish the appliance model for the automatic fire alarm system in clean room within the framework of the performance based design. Because of the environmental and dimensional characters of clean room, this space is exposed to fire and toxic damage, so it is very important to notify the occupants of these dangerous situations.