클라이언트/서버 환경에서 트랜잭션 흐름 제어를 고려한 최적 서버 할당 알고리즘

박진섭,김봉회 大田大學校 産業技術硏究所 1996 산업기술연구소 論文集 Vol.7 No.2

This paper describes an optimal static server allocation algorithm with transaction flow control using mean value analysis in multiprocessing based client/server environment. We present an analytical methodology for the analysis and performance evolution of server allocation algorithm. Using mean value analysis, performance are obtained. It is the throughput, end-to-end delay time, a multiprocessor utilization and system power. The goal in this paper is to determine the optimal parameter value such as the number of transaction and server instantiation in the system, which affect the configuration of the critical hardware resource.

생쥐의 骨髓細胞에 대한 Aminopterin 과 Amethopterin의 細胞遺傳學的 影響

양재섭,강봉석,최명철,김길웅 대구대학교 기초과학연구소 1987 基礎科學硏究 Vol.4 No.-

Aminopterin and amethopterin(Methotrexate; MTX) are antifolic drugs and anti-tumour agents, which inhibit DNA biosynthesis, were previously known to have mutagenic effects on various mammalian cells. Mutagenecity and toxicity of these agents have been determined by various methods. In the present study, effects of two anti-tumour agents on cultured mouse bone marrow cells were analyzed by observing chromosome aberrations and mitotic index. The results of the present investigation were as follows; 1. The chromosome aberrations analyzed were mainly chromosome gaps and breaks, chromatid gaps and breaks. In the Group-1 (treated for 8 hours), chromosome aberrations were not shown and it seems that mutagenic actions of anti-tumour agents were not aroused due to the short period of culture and the other culture conditions. However, in the Group-2 (treated for 24 hours), as the concentrations of antifolic compounds were increased, chromosome aberrations were increased. 2. In mitotic index, the Group-I treated with aminopterin and amethopterin showed marked inhibition in the mitotic index(O. 6% in aminopterin, 0.9% in amethopterin) at the high concentrations, compared with that of control (5. 2%). Both aminopterin and amethopterin showed a dose-dependent reduction of mitotic index. In the Group-2, each group treated with two antifolic compounds showed no marked differences in the mitotic index. compared with that of control. 3. Aminopterin was a more potent agent for induction of chromosome aberration than amethopterin.

성인여성의 수영운동이 심폐기능에 미치는 영향

여봉구,심성섭 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

This study was intended to manifest how female adults' regular swimming could exercise effect on the cardiovascular function, The measurement was taken at the Seoul YMCA Physical Strength Center over 7 months, centering around 1992. female members who had participated in the center's Swimming Program The One-way ANOVA was adopted as a methodology in order to find out any difference among the different groups of people. For this purpose, at first, the 1992. volunteers were grouped into 8 different divisions(between 29 year olds and 60 years olds) according to their ages and 4 different divisions(under one year, 1~2 years, 2~3 years, and 3 years or more) according to years of involvement in exercise Besides, ANCOVA was used with exclusion of age division in order to ascertain the effects that pure swimming participation had on those variables concerned, The conclusion drawn on the basis of the results of the study through the methodology and data analysis procedure stated above were as follows. 1. The study indicated that swimming participation exerted a very significance(p<.05) effect upon the change or the heart rate, as it was conducted with the exclusion of age variables so as to certify whether pure swimming participation affected anything upon the change of the heart rate in a normal situation or not 2. As a result of verifying what effects swimming participation had on the change of the vital capacity, through the exclusion of age variables, it was made clear that the participation had no effect upon the change of the vital capacity. 3. We could not found reliable difference of maximal oxygen uptake of among groups. As a result of verifying what effects swimming participation had on the change of the maximal oxygen uptake, through the exclusion or age variables, it was made clear that the participation had no effect upon the change of the maximal oxygen uptake.

운동처방실 소비자 만족도에 관한 연구

임정섭,서봉한 한국스포츠리서치 2001 한국 스포츠 리서치 Vol.12 No.4

The purpose of this study is to investigate problems and to find out solutions for efficient management of exercise prescription centers through the comparison of use patterns and satisfaction of using exercise prescription centers by sex and age. A group of 150 persons who are the members of two sports centers and two health centers located in Ulsan was the sample object of this research. In order to analyze use patterns including frequency, purpose, information acquisition, and selection motive by sex and age, a Chi-square test has been performed. Satisfaction to facility, number of members, and excercise program, and post satisfaction was analyzed by one-way ANOVA. Significance test was accepted at α=.05. The analysis of the satisfaction to the use of the exercise prescription centers by sex and age are as follows; First, the satisfaction related to facilities was insignificant between the groups of sex, but it was significant among the groups of age. For instance, under fifties were satisfied with facilities. Second, the satisfaction related to the number of center members was insignificant by sex or age. Third, the satisfaction related to the exercise program was insignificant by sex or age. Fourth, there was no significance for the post satisfaction by sex or age. In conclusion, the results of this study indicate that the centers should devise various exercise programs and improve existing services in order to increase members' satisfaction. In addition, the managers at the exercise prescription centers should be aware of consumer behavior, so that they could operate the centers more effectively with consumer satisfaction.

마찰력을 받은 자유 Timoshenko보의 진동과 동적안정성

류봉조,이규섭 大田産業大學校 1994 한밭대학교 논문집 Vol.11 No.0201

수용성 및 가식성 콩 단백질/�틴 블렌드 필름 제조 및 물성 연구

김성철,신용섭,정세환,유성구,박인식,김봉식,신부영 한국공업화학회 2003 응용화학 Vol.7 No.2

The manufacture of edible/biodegradable films or coatings can potentially add value to soy protein, Such films can find using as edible or nonedible food packaging materials. The effect of soy protein film-forming solutions on film formation, tensile properties of soy protein/pectin blend films were changed significantly by the amount of glycerol and the ratio of soy protein/pectin. Moreover mechanical properties of soy protein/pectin-montmorillonite clay have been studied. Tensile strength and modulus decreases as the relative humidity increased while with increasing relative humidity elongation at break increased.

브롬化부틸 고무의 過酸化物 加黃特性에 關한 硏究

李基鐘,申奉燮 又石大學校 1982 論文集 Vol.4 No.-

The purpose of this study is to investigated the cure effect and vulcanizates properties of peroxide/dimaleimide cure system in comparison with sulfur, zinc oxide, resin and peroxide respectively when they are added to Brominated Butyl rubber as curing agents. 1) Brominated butyl rubber can be cured with peroxides or with N, N'-m-phenylene dimaleimide (HVA #2), but the best balance of cure rate and vulcanizates properties is obtained when a peroxide and HVA #2 are used together. 2) The resultant vulcanizates have unusually low compression set, high, heat resistance, and exceptional ozone resistance. Using in combination of 1.5phr of Dicup 40C or Vucup 40KE with 1.5phr of HVA #2 gives excellent results for above properties. 3) Peroxide-HVA #2 cure systems work well in both black and light-coloured compounds 4) Peroxide-HVA #2 cure systems have considerable potential in such applications as heat resisting conveyer belts, gaskets, hose, automoble part, and tire air bag. They may also offer an alternative compounding approach for pharmaceuticals in which the presence of sulfur, zine or organic acceleration would be objectionable.

가시발새우 껍질에서 제조한 키틴 키토산의 물리화학적 특성

정계환,김봉섭,허종화,노홍균 대구효성가톨릭대학교 식품과학연구소 1996 식품과학지 Vol.8 No.-

가시발새우 껍질을 부가가치가 높은 자원으로 활용하기 위하여, 이들로부터 키틴과 키토산을 제조하여 물리화학적 특성을 살펴 보았다. 가시발새우 껍질에서 추출한 키틴의 일반성분은 질소 6.84%, 지방 0.57%, 회분 0.32%였으며, 수율은 15.7%였다. 키토산은 질소함량이 7.52%였으며 지방과 회분함량은 각각 0.13%와 0.33%였다. 그리고 탈아세틸화도는 67.5%, 분자량은 9.1×10 exp (5)이었으며 수율은 75%를 나타내었다. 키틴 및 키토산의 잔류 아미노산은 각각 2.64㎎/g과 1.39㎎/g 검출되었고, 그 중 lysine이 가장 높게 나타났다. 한편 키틴과 키토산의 IR 스펙트럼과 고체상태 ^(13)C-NMR 스펙트럼 data는 분자구조를 확인하는데 도움이 되었다. The physicochemical properties of chitin and chitosan produced from lobster shrimp (Metanephrups thomosonii) shell were investigated. Lobster shrimp chitin contained 6.84% nitrogen, 0.57% fat and 0.32% ash, while chitosan contained 7.52% nitrogen, 0.13% fat and 0.33% ash. Degree of deacetylation and molecular weight of chitosan were 67.5% and 9.1×105, respectively. Yields of chitin from the shell portion and chitosan from the chitin were 15.7% and 75%, respectively. Chitin and chitosan contained 2.64 and 1.39㎎/g of residual amino acids, respectively, with both the most predominant being lysine. Chemical structures of the lobster shrimp chitin and chitosan have been investigated by the IR and solid state ^(13)C-NMR spectra.

배기 저항의 능동제어를 통한 배기 시스템의 최적화에 관한 연구

임경빈,류봉조,이규섭,김상덕,송시영,이상훈 한밭대학교 생산기반기술연구소 2002 생산기반기술연구소 논문집 Vol.2 No.1

Automobile exhaust system has difficulty in concentrating contrary technology, which has diminishing effect of maximum exhaust noises and mininum exhaust pressure for output efficiency improvement into on system. This thesis has the purpose in management of basis study for silence and output efficiency improvement which can be satisfy low noises and low exhaust pressure at the same time through maximizing engine efficiency dealing with activity as the condition of engine controlling exhaust impedance actively. In this thesis, we obtained positive result by making experiment high efficiency exhaust induced shaped silencer in order to satisfy contrary matters which device the improvement of engine efficiency and low perception of exhaust noises at the same time. That is, we proved that it has more excellent in low perceiving noises of exhaust system and output improving efficiency than existing muffler by active controlling the exhaust impedance.

RT-LAMP를 이용한 콩황화일반모자이크바이러스의 진단

배대현, 이영훈, 김봉섭, 윤영남, 강범규, 최만수, 구성철, 김현태, 윤홍태, 이수헌, 백인열 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2

Soybean yellow common mosaic virus (SYCMV) has been recently reported, it has been occurred a lot with Soybean mosaic virus (SMV) and Soybean yellow mottle mosaic virus (SYMMV) in soybean field. SYCMV belongs to genus of Sobemovirus and induced viral symptoms with yellowing, mottle and mosaic. A reverse transcription loop-mediated isothermal amplification (RT-LAMP) method allowed one-step detection of gene amplification by simple procedure and needed only a simple incubator for isothermal template. This RT-LAMP method allowed direct detection of RNA from virus-infected plants without thermal cycling and gel electrophoresis. In this study, we designed RT-LAMP primers named SYCML-F3/B3/FIP/BIP from coat protein gene sequence of SYCMV. After the reaction of RTLAMP, products were identified by electrophoresis and with the detective fluorescent dye, SYBR Green I. under daylight and UV light. Optimal reaction condition was at 63 for 60min and the primers of RTLAMP showed the specificity for only SYCMV tested in this study.