• 패션비즈니스
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• 제5권1호
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• pp.117-130
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• 2001

The purpose of this research focuses mainly on the establishment of: the image of the police that can be adopted to meet the demands of reality through the development of the design of policewomen's uniform in the times that require reestablishment of the image of the police; the image of the police that is appropriate for the organic structure of the society; and the image of the police that cooperate with the citizens. For background research I have considered the police and their uniforms from a theoretical point of view and have examined the process by which Korean policewomen's uniforms have changed. Actual research was carried out policewomen of Seoul Regional Police Station, was conducted and the results were utilized to figure out what the problem was. This research suggests an improvement measure by making four suits of summer and spring-and-autumn work-uniforms, and six suits of spring-andautumn and winter full-dress uniform. First the colors of work-uniforms and full-dress uniforms are not blue, which incites a feeling of coldness and stiffness, but are colors that are feminine and emit warmth---red, ivory, khaki, black, and beige. second pure, natural fiber is difficult to wash and is not an appropriate material for policewomen's uniforms when considering its cost and etc., fabrics that are a mix of synthetic fiber and natural fiber were chosen. Because mixed fabrics are cheaper and their ability to maintain shape is superior to that of natural fiber, mixed fabric is an appropriate material for policewomen's uniforms. third the feminine image of policewomen was considered; therefore, masculine image, which is rigid and strong, was avoided and the image was expressed in a serene and beautiful way. Also slim line was added to the current uniforms to emphasize feminine beauty. The conclusion of this study is that police officers in the 21st century want to be seen as the citizens cane and benevolent volunteers that live together with the citizens, not as suppressive and powerful people.

• 한국약용작물학회지
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• 제3권2호
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• pp.156-164
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• 1995

울릉도(鬱陵島)에서 생산(生産)된 일천궁(日川芎)과 봉화지방(奉化地方)에서 재배(栽培)된 토천궁(土川芎)을 공시(供試)하여 차광(遮光)과 비닐피복(被覆)이 생육(生育)과 수양(收量)에 미치는 영향(影響)을 구명(究明)하기 위한 시험(試驗)을 2개년간(個年間) 수행(遂行)한 결과(結果)를 요약(要約)하면 다음과 같다. 1. 차광효과(遮光效果)에 대한 시험(試驗) 가. 주당분핵수(株當分核數)는 무차광(無遮光)에 비해 차광구(遮光區)가 많았으며 지상부(地上部)의 생체동엽중(生體童葉重)은 일천고(日川考)은 무차광(無遮光)에 비해 35%, 55%차광(遮光)에서 증가(增加)되었고, 토천궁(土川芎)은 차광(遮光)으로 인해 오히려 감수(減收)되는 경향(傾向)이었다. 나. 하고현상(夏枯現象)은 일천궁(日川芎)의 경우 무차광(無遮光)에 비해 55%, 75%차광(遮光)에서 경감(輕減)되었으며 토천궁(土川芎)에서는 무차광(無遮光)과 차광처리(遮光處理)간에 차이(差異)가 인정(認定)되지 않았다. 다. 10a당(當) 건근수양(乾根收量)은 토천궁(土川芎)은 처리간(處理間) 차이(差異)가 없었으나 일천궁(日川芎)에서는 무차광(無遮光) 254kg에 비해 35% 차광(遮光)이 17%, 55%차광(遮光)이 19% 각각(各各) 증수(增收)되어 천궁(川芎) 차광재배시(遮光栽培時)의 적정차광비률(適正遮光比率)은 $35{\sim}55%$였다. 2. 비닐피복효과(被覆效果)에 대한 시험(試驗) 가. 출현률(出現率)은 흑색(黑色)비닐피복(被覆)이 무피복(無被覆)에 비해 일천궁(日川芎)은 98%, 토천궁(土川芎)은 94%로 가장 높았으며 투명(透明)비닐은 출현기(出現期)의 고온(高溫)으로 인해 오히려 낮아졌다. 나. 지상부(地上部)의 생체경엽중(生體莖葉重)은 일천궁(日川芎)이 무피복(無被覆) 177kg/10a에 비해 피복구(被覆區)가 $194{\sim}241kg$으로 증가(增加)하였고, 토천궁(土川芎)도 무피복(無被覆) 310kg에 피복구(被覆區)가 $456{\sim}574kg$으로 생육(生育)이 왕성(旺盛)하였다. 다. 10a당(當) 건근수양(乾根收量)은 흑색(黑色)비닐피복(被覆)이 무피복(無被覆)에 비해 일천궁(日川芎)은 32%, 토천궁(土川芎)은 30% 증수(增收)되어 가장 높은 피복(被覆) 효과(效果)를 나타내었다.

• 한국약용작물학회지
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• 제9권4호
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• pp.284-289
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• 2001

한약재로 이용되고 있는 육묘한 식방풍을 공시하여 육묘이식 백색비닐피복, 육묘이식 흑색비닐피복, 육표이식 무피복 처리와 노지직파 무피복처리가 생육과 수량에 미치는 영향에 관하여 시험을 수행한 결과는 다음과 같다. 출아기간은 폿트육묘시 8일이었고 노지직파는 40일이었으며 출아율은 폿트육묘시 74%였으나 노지직파에서는 17%로 크게 저조하였다. 초장, 엽수, 경직경 등 지상부생육량은 육묘이식 백색비닐피복>육묘이식 흑색비닐피복 >육묘이식 무피복>노지직파 무피복처리구 순으로 많은 경향이었다. 주근의 길이는 육묘이식 무피복구가 유의하게 짧았으나, 피복처리구와 노지직파 무피복구는 비슷하게 긴편이었다. 주근의 굵기는 비닐피복구가 무피복구에 비하여 유의하게 굵었고 노지직파 무피복구가 가장 가늘었다. 지근의 수는 육묘이식한 것이 직파한 것보다 $4.7{\sim}7.1$개 많았다 건근비율은 노지직파 무피복구에서 30.5%로 가장 높고 육묘이식구에서는 무피복구가 높았으머 비닐피복구에서 낮은 경향이었다. 10a당 건근수량은 육묘이식 백색비닐피복 542kg, 육묘이식 흑색비닐피복 506kg, 육묘이식 무피복 419kg으로 노지직파 7kg에 비하여 각각 52, 42, 17%증가하였으며 식방풍의 재배는 육묘이식하되 백색비닐로 피복하여 재배하는 것이 가장 유리하였다.

• 대한인간공학회지
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• 제32권1호
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• pp.117-124
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• 2013

Objective: This paper presents additional considerations related to organization and safety culture extracted from recent human error incidents in Korea, such as station blackout(i.e., SBO) in Kori#1. Background: Safety culture has been already highlighted as a major cause of human errors after 1986 Chernobyl accident. After Fukushima accident in Japan, the public acceptance for nuclear energy has taken its toll. Organizational characteristics and culture became elucidated as a major contributor again. Therefore many nuclear countries are re-evaluating their safety culture, and discussing any preparedness and its improvement. On top of that, there was an SBO in 2012 in the Kori#1. Korean public feels frustrated due to the similar human errors causing to a catastrophe like Fukushima accident. Method: This paper reassesses Japan's incidents, and revisits Korea's recent incidents. It focuses on the analysis of the hazards rather than the causes of human errors, the derivation of countermeasures, and their implementation. The preceding incidents and conclusions from Japanese experience are also re-analyzed. The Fukushima accident was an SBO due to the natural disaster such as earthquakes and a successive tsunami. Unlike the Fukushima accident, the Kori#1 incident itself was simple and restored without any loss and radioactive release. However, the fact that the incident was deliberately concealed led to massive distrust. Moreover, the continued violation of rules and organized concealment of the accident are serious signs of a new distorted type of human errors, blatantly revealing the cultural and fundamental weakness of the current organization. Result: We should learn from Japanese experiences who had taken pride in its safety technology and fairly high confidence in safety culture. Japan's first criticality accident in JCO facility splashed cold water on that confidence. It has turned out to be a typical case revealing the problems in the organization and safety culture. Since Japan has failed to gain lessons and countermeasure, the issue persists to the Fukushima incident. Conclusion: Safety culture is not a specific independent element, which makes it difficult to either evaluate it properly or establish countermeasures from the lessons. It may continue to expose similar human errors such as concealment of incident and manipulation of bad data. Application: Not only will this work establish the course of research for organization and safety culture, but this work will also contribute to the revitalization of Korea's nuclear industry from the disappointment after the export contract to UAE.

• 한국작물학회지
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• 제38권6호
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• pp.554-559
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• 1993

냉수관개가 벼 생육특성, 수량 및 미질관련 형질에 미치는 영향을 검토하기 위하여 작물시험장 춘천출장소 냉수처리포장에서 실시한 시험 결과를 요약하면 다음과 같다. 1. 냉수구에서는 자연구에 비하여 출수가 10～19일 지연되었고 간장과 수장은 17～31% 단축되었다. 수수는 일정한 경향이 없으며 품종간에 반응이 상리하였다. 2. 냉수구에서 영화수는 이삭당 10～35개가 감소되었고 등숙률이 현저히 떨어졌으며, 정조수량은 오대벼 치악벼등이 높은 수량을 나타낸 반면에 백암벼 소백벼 진미벼등은 낮은 수량을 보였다. 고중은 공시품종 모두 냉수구에서 높았다. 3. 현미 완전미율은 냉수구와 자연구간에 일정한 차이가 없었고 오히려 품종간의 변이가 크게 나타났고, 청미율은 자연구에서 많은 경향이며 연색미는 냉수구에서 월등히 높았다. 4. 백미 투명도및 알칼리 붕괴도는 수구쪽에서 높은 경향이며, 아밀로스 함량은 자연구에서 높았다.

• Journal of Animal Science and Technology
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• 제54권6호
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• pp.411-418
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• 2012

KIT gene is the major causative gene for coat color variation in diverse animal species. This gene regulates melanocyte migration from the neural crest to target tissues and the mutation of this gene can affect dominant white phenotypes in animals. Because this gene has a major influence for the coat color variation, single nucleotide polymorphisms (SNPs) in 14 Korean cattle (Hanwoo) and 5 Holstein individuals were investigated. The Hanwoo DNA samples included three different colored (5 Black, 5 Yellow and 4 Stripe) animals. Total 126 polymorphisms have been identified and 23 of them are located in the exon region. Also, 5 bp (TTCTC) and 3 bp (TCT) intronic indels in intron 3 and intron 5, respectively, were identified. Out of 23 exonic polymorphisms, 15 SNPs are the missense mutations and the rest of the SNPs are silence mutations. The neighbor-joining phylogenetic tree was constructed for the different colored animals using the obtained KIT gene sequences. Holstein breed showed a clear breed-specific cluster in the phylogenetic tree which is differed from Hanwoo. Also, three colored Hanwoo animals were not discriminated among the breeds. The KIT gene polymorphisms identified in this study will possibly give some solutions for the color variations in cattle with further verifications.

• 한국유체기계학회 논문집
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• 제17권6호
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• pp.104-108
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• 2014

The recent Fukushima nuclear power plant accidents shows that the core make up at high RCS pressure condition is very important to prevent core melting. The core make up flow at high pressure condition should be driven by gravity force or passive forces because the AC-powered safety features are not available during a Station Black Out (SBO) accident. The reactor Coolant System (RCS) mass inventory is continuously decreased by releasing steam through the pressurizer safety valves after reactor trip during a SBO accident. The core will be melted down within 2~3 hours without core make up action by active or passive mode. In the new design concept of a Hybrid Safety Injection Tank (Hybrid SIT) both for low and high RCS pressure conditions, the low pressure nitrogen gas serves as a charging pressure for a LBLOCA injection mode, while the PZR high pressure steam provides an equalizing pressure for a high pressure injection mode such as a SBO accident. After the pressure equalizing process by battery driven initiation valve at a high pressure SBO condition, the Hybrid SIT injection water will be passively injected into the reactor downcomer by gravity head. The SBO simulation by MARS code show that the core makeup injection flow through the Hybrid SIT continued up to the SIT empty condition, and the core heatup is delayed as much.

• 에너지공학
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• 제26권3호
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• pp.71-77
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• 2017

피동고압충수용 혼합형 안전주입탱크 (Hybrid SIT)의 압력평형시간은 냉각수 주입시기를 결정하는 주요인자이다. 한국원자력연구원 (KAERI)에서는 Hybrid SIT에서의 내부 열수력적 거동을 고찰하기 위해 개별효과시험 장치를 구축하였으며, 다양한 운전조건에서의 압력평형시간에 대한 민감도 시험을 수행하였다. 개별효과시험을 통해 압력평형시간을 결정하는 주요인자들을 도출하였으며, 그 중 증기의 벽면응축 및 냉각재와의 직접접촉응축이 압력평형시간을 결정하는 주요 현상임을 파악하였다. 본 연구에서는 개별효과 시험결과들을 이용하여 각각의 응축현상들이 압력평형에 미치는 영향을 정량적으로 분석하고 혼합형 SIT의 압력평형시간을 예측하기 위한 방법론을 제시하였다.

• Nuclear Engineering and Technology
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• 제53권12호
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• pp.3990-4002
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• 2021

CSPACE (Core meltdown, Safety and Performance Analysis CodE for nuclear power plants) for a simulation of severe accident progression in a Pressurized Water Reactor (PWR) is developed by coupling of verified system thermal hydraulic code of SPACE (Safety and Performance Analysis CodE for nuclear power plants) and core damage progression code of COMPASS (Core Meltdown Progression Accident Simulation Software). SPACE is responsible for the description of fluid state in nuclear system nodes, while COMPASS is responsible for the prediction of thermal and mechanical responses of core fuels and reactor vessel heat structures. New heat transfer models to each phase of the fluid, flow blockage, corium behavior in the lower head are added to COMPASS. Then, an interface module for the data transfer between two codes was developed to enable coupling. An implicit coupling scheme of wall heat transfer was applied to prevent fluid temperature oscillation. To validate the performance of newly developed code CSPACE, we analyzed typical severe accident scenarios for OPR1000 (Optimized Power Reactor 1000), which were initiated from large break loss of coolant accident, small break loss of coolant accident, and station black out accident. The results including thermal hydraulic behavior of RCS, core damage progression, hydrogen generation, corium behavior in the lower head, reactor vessel failure were reasonable and consistent. We demonstrate that CSPACE provides a good platform for the prediction of severe accident progression by detailed review of analysis results and a qualitative comparison with the results of previous MELCOR analysis.

• 한국수정란이식학회지
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• 제27권3호
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• pp.149-154
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• 2012

This study was carried out to investigate effective condition for producing somatic cell nuclear transfer (SCNT) embryos of Jeju native cattle. As donor cells for SCNT, ear skin cells from Jeju native cattle were used. In experiment 1, the effect of recipient oocyte sources on the development of Jeju native cattle SCNT embryos were examined. Fusion rate of recipient oocyte and donor cell was not different between the Hanwoo and Holstein recipient oocytes (86.0% vs 89.9%). The rate of embryos developing to the blastocyst stage was significantly (p<0.05) higher in Hanwoo recipient oocytes than in Holstein recipient ones (28.2% vs 14.7%). Blastocysts derived from Hanwoo recipient oocytes contained higher numbers of total cells than those derived from Holstein ones ($115.1{\pm}40.8$ vs $101.4{\pm}33.3$), although there were no significant difference. The mean proportion of apoptotic cells in blastocyst was not different between the sources of recipient oocytes. In experiment 2, the development of Jeju native cattle and Hanwoo SCNT embryos were compared. Hanwoo oocytes were used as the recipient oocytes. Fusion rate was not different between the Jeju native cattle and Hanwoo SCNT embryos (92.1% vs 92.9%). The blastocyst rate of SCNT embryos was significantly (p<0.05) lower in Jeju native cattle than in Hanwoo (16.9% vs 31.0%). Blastocysts derived from Jeju native cattle SCNT embryos contained smaller numbers of total cells than those derived from Hanwoo ones ($136.6{\pm}33.7$ vs $149.9{\pm}39.7$), but there were no significant difference. The mean proportion of apoptotic cells in blastocyst was not different between the Jeju native cattle and Hanwoo SCNT embryos. The present study demonstrated that Hanwoo recipient oocytes were more effective in supporting production of Jeju native cattle SCNT embryos, although Jeju native cattle SCNT embryos showed reduced developmental capacity when compared to Hanwoo SCNT embryos.