• Journal of Environmental Science International
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• v.7 no.3
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• pp.327-334
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• 1998

The oil crisis of the 1970s and the rise in oil prices motivated people to implement energy conservation strategies. Buildings were fitted with additional Insulation and reduced ventilation rates. The reduction of mechanical and natural ventilation rate led to Increases In Indoor pollutant concentrations which result- ed In Increased health risks from Indoor exposure to pollutants. The variable-air-volume /bypass fitration system/VAV/BPFS) is a variation of the conventional VAV systems, The VAV/BPFS is an electronically controlled system that provides costegectlve thermal comfort and acceptable indoor air quality Under controlled conditions In a chamber, a series experiments were performed to compare the ability of a VAV/BPFS to remove Indoor aerosol concentration and to reduce energy consumption no that ability of conventional VAV system. Results show that the VAV/BPFS Increases the effective ventilation rate and removes indoor air pollutant, and maintains acceptable indoor air Quality without sacrificing energy consumption.

• Journal of the Korean Home Economics Association
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• v.44 no.4 s.218
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• pp.11-21
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• 2006

The purpose of this study was to identify the ecological variables related with children's emotional intelligence, examine their recognition of all the variables affecting their emotional intelligence and classify the variables into the categories of children (gender, grade, self-efficacy), home environment (employed mother or unemployed mother, communication between parents and child, type of family composition, number of siblings), and peer group environment (peer group). The study subjects were 680 elementary school students. Data were analyzed via t-test, F-test, correlation, and multiple regression. The results of this study were as follows. First, emotional intelligence showed significant difference and relationship among the children variables, home environment variables, and peer group environment variable. (Ed- also note the absence of 'fourth' above) Second, emotional intelligence in children was relatively reviewed by the above three variables and the most affecting variable was self-efficacy in children.

• Journal of the Korean Society of Costume
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• v.53 no.1
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• pp.77-85
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• 2003

The following results are from a research on the influences of the political parties on the fashion styles. which political power was strugg1ed with each other were one of the political Phenomena featuring Chosun Dynasty. Partisan fashion styles are mainly divided into two groups : NohRon (노론) and SohRon (소론). Nonetheless. NmIn (남인) also shows several unique traits. BukIn (북인). however, does not seem to be retaining any unique styling features. which believed to be caused by lack of political Power. The style of NohRon represents the status of a ruling party, which generally had abundant resources and the image of a conservatism. On the contrary, with SohRon's style, swiftness and reform-minded images could be found. Moreover, the NohRon's style is generally known to present, as the representing the way of noble men of Chosun Dynasty wore in the past. The reason seems to have stemmed from its status as the last ruling party in Chosun Dynasty. Thus, many people of the age mimicked the style, and it gained general acceptance in turns. Consequently, it is still deemed as the prevalent style of Chosun Dynasty.

• Proceedings of the Earthquake Engineering Society of Korea Conference
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• 2001.09a
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• pp.348-355
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• 2001

A computer program named \"NLDA-BIS\", which runs under the MATLAB environment, is developed fur seismic response analysis of base isolated structures. This program can explicitly model the various nonlinear isolation elements such as elastomeric bearings, sliding bearings and general viscous dampers, and so on. Newmark'\`s constant average acceleration method fur calculating the responses in time domain and the iterative pseudo-force method for treating the nonlinear isolation forces are adopted. For capturing the hysteretic behavior of isolation elements, the modified Wen's equations are adopted and solved by the numerical differentiation formula method. To verify the validity of the developed program, the seismic responses of a six-story reinforced concrete base isolated structure are calculated and compared with results obtained by the program \"3D-BASIS\" developed at the State University of New York at Buffalo which is the most widely used code far analyzing isolated structures today.ed structures today.

• Korean Journal of Environmental Biology
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• v.20 no.4
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• pp.309-311
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• 2002

A total of ten specimens of darkblotched rockfish, Sebastes crameri obtain-ed from Newport fish market were examined for parasites during February, 2002. Eight out of ten S. crameri were found to be infected with metazoan parasites. They were flatworm Trochopus australis, nematoda Anisakis simplex, and copepods Neobrachiella robusta and Chondracanthus triventricosus. Nine (30.0%) T. australis, seven (30.0%) N. robusta, one (10.0％) C. triventricosus and seven (60.0%) A. simplex were infected. Among them, A. simplex was the most abundant and prevalent metazoan parasites in S. crameri. T. australis and N. robsta were found in gills with moderate intensity (1.7 and 1.9, respectively), and C. triventricosus in dorsal fin with low intensity (0.3).

• YAKHAK HOEJI
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• v.49 no.6
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• pp.505-510
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• 2005

Allylthio group of allicin and other organosulfur compounds which are isolated from garlic is considered as a pharmacophore, a key structure component of the molecule which is responsible biological activities. In the foregoing studies various 3-allylthio -6- alkoxypyridazine derivatives (K- compounds ) and 3-allylthio -6- alkylthiopyridazine derivatives(Thio-K-compounds) were synthesized and their biological activities were tested in vivo. They showed good hepatoprotective activities on the carbon tetrachloride-treated mouse and aflatoxin Bl-treated rat and chemopreventive activities on bepatocarcinoma cells in rat as expected. Now 3-allylthio-6-heterocyclylalkylaminopyridazine derivatives that the oxygen atom at 6-Position of 3-allylthio-6-alkoxypyridazine is replaced by nitrogen (N) were synthesiz ed and their activities were tested in vitro against SK-Hep-1 human liver cancer cells. They showed good chemopreventive activities on hepatocarcinoma cells.

• Journal of the Korean Institute of Telematics and Electronics S
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• v.35S no.4
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• pp.30-39
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• 1998

Currently, LAMA(Local Automatic Message Accounting) is a billing mechanism which is being used for billing process, in which billing dat is written on MT(Magnetic Tape), collected at each regional billing center and then processed once a month. However, in order to prepare further development of telecommunication network and future new services, computerization of billing process and new daily billing processing system are urgently needed. Therefore Korea Telecom had developed a CAMA (Centralized Automatic Message Accounting) system for M10CN switch. In the CAMA system, billing data generated in switches is transfered on-line using approproate protocols and various transmission media and immediately processed. The CAMA system for M10CN switch consists of three parts such as ED (Extraction Device), TD(Transmission Device) and HC(Host Collector). The system also has redundancy to maintain continuance and confidence of system operation.

• Proceedings of the Korean Geotechical Society Conference
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• 2002.10a
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• pp.259-264
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• 2002

In this study the shear strengths of a poorly grad ed rock material(d/sub max/≤50.8mm, C/sub u/=1.86) were determined by large direct shear test and large triaxial test. The obtained stress-strain curves by the above large shear tests for the rock materials are similar to the loose sand's or normally consolidated clay's curve, in which the peak strength does not appear obviously. And for the uniformly graded rock material the shear strength by large direct shear test may be overestimated around 1.54∼1.70 times that of large triaxial test.

• Journal of Families and Better Life
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• v.17 no.2
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• pp.137-156
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• 1999

The purpose of this study was to investigate couple's leisure time leisure cost and leisure satisfaction and the relations among these variables. Data for 214 couples were gathered from the structured questionnaire and time diary. The major findings of this study were as follows": (1) The amount of leisure time was very different between husbands and wives. And couples' leisure time was different according to wives' employement status,. (2) The amount of leisure cost was very different between couples and between employed wife and non-employed wife (3) Couple's leisure satisfaction was also different between couples and between employed wife and non-employed wife (4) In husbands' model leisure time had significant effect on their leisure satisfaction. On the other hand in wives' regression model different according to employment On the other hand in wives' regression model was different according to employment status. Employed wives' leisure satisfaction was significnatly rela ed to the leisure time and cost while non-employed wives' leisure satisfaction was related to leisure cost and age.

• Proceedings of the KIEE Conference
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• 2007.11b
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• pp.109-111
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• 2007

전력거래소(KPX)는 전국에 산재된 발 변전소로부터 2초 혹은 4초 주기로 계통운영에 필요한 아날로그, 디지털 데이터를 실시간으로 취득하고 있다. 이렇게 취득한 데이터는 EMS 전력계통 감시 및 제어를 위한 각종 화면, 자동발전제어/경제급전(AGC/ED), 상태추정(SE), 상정고장해석(CA)등 실시간 계통운영과 조류계산(PF), 고장계산(SCT), STNET(PF, CA), 상정고장해석 등 검토모드로 급전소 휴전업무 검토에 활용되고 있다. 또한 EMS에서 취득한 실시간 데이터를 MOS(시장 운영시스템)로 보내어 상태추정을 추행하고 이 값을 기반으로 발전기별 경제적인 출력 값인 FMD(5분 급전지시)를 EMS로 보내어 EMS의 주요기능인 AGC(자동발전제어)로 경제적이고 안정된 출력 조정을 하고 있다. 이러한 이유로 EMS 및 MOS의 상태추정 견과의 정확도와 실행 안정성은 매우 중요하다고 하겠다. 본고에서는 EMS 계통해석기능 검증 결과와 향후 데이터 정확도 개선은 위한 과정의 일환으로 EMS의 상태추정과 MOS의 상태추정의 상호비교 결과를 소개하고자 한다.