• Nuclear Engineering and Technology
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• 제49권4호
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• pp.752-759
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• 2017

The fatigue crack growth behavior of Type 347 (S347) and Type 347N (S347N) stainless steel was evaluated under the operating conditions of a pressurized water reactor (PWR). These two materials showed different fatigue crack growth rates (FCGRs) according to the changes in dissolved oxygen content and frequency. Under the simulated PWR conditions for normal operation, the FCGR of S347N was lower than that of S347 and insensitive to the changes in PWR water conditions. The higher yield strength and better corrosion resistance of the nitrogen-alloyed Type 347 stainless steel might be a main cause of slower FCGR and more stable properties against changes in environmental conditions.

• 한국의류산업학회지
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• 제22권3호
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• pp.378-385
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• 2020

The purpose of this study was to present basic data for development of shoe last suitable for women of plus size (BMI 25 kg/㎡ or higher) by type and to analyze the characteristics of each type of foot type. The results of the study are as follows. A comparison of the feet of a plus-size woman and a normal-weight woman showed that the feet of a plussize woman were thicker and wider in the toes, cheeks and feet than those of a normal-weight woman, while the ankle area was thicker. As a result of the cluster analysis by type of foot type of plus-size woman, type 1 was classified into four types, type 1 was 49 (19.5%), type 2 was 43 (17.1%), type 3 was 53 (21.1%), and type 4 was distributed among 106 (42.2%). Type 1 appeared to be a long, low heel, thick foot and wide H-type, and Type 2 appeared to be a D-type with a low heel and a thinner and narrow foot compared to other types, but with wide outer width of the foot. Type 3 showed short feet, low heels, narrow feet, but slanted sides, and Type 4 showed type A with long feet, high heels, thick and wide feet or a combination of toes.

• 설비공학논문집
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• 제17권2호
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• pp.117-124
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• 2005

Aluminum plate heat exchanger, rotary wheel heat exchanger, and heat pipe heat exchanger have been used (or ventilation heat recovery in the air-conditioning system. The purpose of this research is to develop high efficiency plastic plate heat exchanger which can substitute aluminum plate heat exchanger. Because thermal conductivity of plastic is quite small compared to that of aluminum, various heat transfer enhancement techniques are applied in the design of plastic plates. Five types of heat exchanger model are designed and manufactured, which are plate type, plate-fin type, turbulent promoter type, corrugate type, and dimple type. Thermal performance and pressure loss of each heat exchangers are measured in various operating conditions, and compared each other. Test results show that heat transfer performance of corrugate type, turbulent promoter type, and dimple type are increases about $43\%$, $14\%$, and $33\%$ at the equivalent fan power compared to those of plate type, respectively. On the other hand, the heat transfer performance of plate-fin type decreases $9\%$ because fins can not play their own role.

• 산경연구논집
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• 제8권1호
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• pp.15-22
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• 2017

Purpose - Retail companies are turning from one type of retailer to multiple business categories through various reasons, such as taking advantage of existed types of retailers' channel distribution, information and know-how, and entering into new types of retailers. However, there is few research conducted about multiple type of retailers. Research design, data, and methodology - In this research, the references, data and new stores on E-mart will be collected. The dissertation, annual report, statistical data, land-book of E-mart will be also collected to confirm whether E-mart has made any acquisition towards another company. Results - There is a tendency to new stores expansion, store enlargement and prolonging the opening preparation of new stores, based on the core of new stores expansion of E-mart as a general supermarket type of retailers. Based on general supermarket type of retailers, E-mart begins to diversify its retail company's type of retailers. Conclusions - As a general supermarket which is the most important type of retailers, E-mart is expanding into SSM type of retailers to seek new power of growth while slowdown growth is shown in general supermarket type of retailers. The expansion into SSM type of retailers would be a wise option as a retail company, E-mart is able to keep growing in the future.

• 식물병연구
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• 제19권1호
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• pp.31-35
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• 2013

콩 저항성품종 육성의 기초자료로 이용하고자 국내 13개 콩 씨스트선충 집단을 대상으로 HG type를 조사하였다. 국내 콩 씨스트선충 HG type는 0, 2, 5, 2.5, 1.2.7, 2.5.7로 총 6개의 HG type가 발견되었다. 그중 HG type 2.5가 30.8%로 가장 많았으며 다음으로 HG type 2.5.7(23.0%)이었다. 각 indicator별로는 PI 88788 가해 집단이 76.9%, PI 209332 가해 집단이 61.5%, PI 548316('Cloud') 가해 집단이 30.8%, PI 548402('Peking') 가해 집단이 7.7%였고 PI 90763, PI 437654, PI 89772를 가해할 수 있는 콩 씨스트선충 집단은 없었다. PI 90763, PI 437654, PI 89772은 국내 모든 콩 씨스트선충 집단에 대해 저항성으로 나타나 저항성품종 육성 교배 모본으로 이용될 수 있을 것이다.

• 한국의류산업학회지
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• 제25권1호
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• pp.52-61
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• 2023

This study aimed to present data for the development of a shoe which is suitable for plus-size men (BMI 25kg/m² or higher) and to analyze the characteristics of each type of foot. The results of the study are as follows. To assess foot shape in relation to weight gain, participants were categorized into normal weight, overweight, and obese weight groups, according to their BMI indexes. Those in the normal weight group exhibited a smaller value than the overweight or obese weight group in all items. As a result of the cluster analysis, by type of foot, of the obese men category, men were classified into four BMI index groups: members of the type 1 group had a BMI index of 157 (18.4% of total sample), while for type 2 the figure was 213 (25.0% of sample), for type 3 it was 259 (30.4%), and for type 4 it stood at 224 (26.3% of total sample). Those from the type 1 group had thin ankles with narrow toes and flattened sides. Type 2 group members had thick ankles with well-developed outer feet and thick sides. Those within the type 3 group had medium-thick ankles with narrow feet but wide inner feet. Finally, those in the type 4 group had feet with a slanted side, as well as thick ankles, wide feet, and flat sides. Among these categories, the type 3 group members indicated the highest distribution.

• 미생물학회지
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• 제55권3호
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• pp.289-292
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• 2019

Lachnospiraceae bacterium KGMB03038 (=KCTC 15821)은 건강한 한국인의 대변 시료로부터 분리된 Lachnospiraceae과, Clostridia 강, Firmicutes 문에 속하는 신속 균주이다. 본 연구에서는 PacBio Sequel 플랫폼을 이용하여 KGMB03038 균주의 유전체를 해독하고 분석하였으며 그 결과, 47.8% G + C 함량을 가진 3,334,474 bp 길이의 완전한 하나의 유전체 컨티그를 얻었다. 이 유전체는 3,099개의 단백질 암호화 유전자와 12개의 rRNA 유전자, 54개의 rRNA 유전자, 그리고 4개의 ncRNA 유전자를 포함하고 있다. 이 유전체 분석 결과, KGMB 03038 균주가 탄수화물의 가수화와 아미노산의 생합성에 관련되어 있는 중요 유전자들을 가지고 있음을 확인하였다.

• 미생물학회지
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• 제55권3호
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• pp.274-277
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• 2019

본 연구에서는 건강한 한국인 분변으로부터 Ruminococcus sp. KGMB03662 균주를 분리하고 유전체서열을 PacBio Sequel 플랫폼을 사용하여 분석하였다. 염색체의 크기는 2,707,502 bp로 G + C 구성 비율은 43.09%, 총 유전자수는 2,484개, 단백질 코딩 유전자는 2,367개, rRNA는 14개 및 tRNA는 53개로 구성되었다. 본 유전체로부터 가수분해효소, 지방산생합성 및 대사와 항생제생합성 및 내성 관련 유전자를 확인하였다. 이러한 유전체의 분석은 KGMB03662 균주가 사람의 건강 및 질병에 관여할 것으로 여겨진다.

• 대한핵의학회지
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• 제9권1호
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• pp.45-50
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• 1975

A knowledge of the wide ranges in shape of liver is important in the interpretation of hepatic scintigraphy as some variants may be easily confused with pathological abnormalities. In this study, the variations in shape in 250 cases of normal liver obtained by scintiphoto were categorized into 9 types by means of the arbitrary standard for classification. Following were the results; 1) Among 250 normal cases, type 5 was 118(47.2%) with the highest prevalence and type 3 was 2 (0.8%) with the lowest. 2) A high incidence of obesity was noted in type 1, type 4 and type 8. That of ideal weight was noted in type 2, type 5 type 6 and type 9. 3) A high ratio of cardiac impression in scintiphoto was noted in type 4, type 7 and type 8. That of square left lobe was noted in type 2, type 6 and type 9. Finally that of tailed left lobe was in type 4, type 7 and type 8.

• 한국콘텐츠학회논문지
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• 제19권6호
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• pp.347-358
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• 2019

본 연구는 외식창업교육 체험프로그램 중 창업동아리에서 운영하는 팝업레스토랑에 참여한 조리전공 학생들의 주관적 인식을 파악하고자 Q방법론을 적용하여 분석하였으며, 이들 사이에서 발견되는 공통적인 구조를 도출하여 유형들 간의 특성을 기술하고 분석 한 후 향후 시사점을 제시하였다. 유형분석 결과 총 5가지의 유형이 도출되었다. 제 1유형(N=4) : 학습효과 증대 형 (Increase learning effect type), 제 2유형(N=8): 구성원의 협업 중요 형 (Collaboration of members importance type), 제 3유형(N=6): 마케팅 홍보 필요 형 (Marketing PR Needed type), 제 4유형(N=4): 외식창업 계획 형(Restaurant business plan type), 제 5유형(N=3): 산업체 실무 경력 필요 형 (Industry work experience required type)으로 명명 하였으며, 각각의 유형마다 다양한 특징이 있는 것으로 분석되었다. 본 연구는 향후 관련 유사연구에서 외식창업교육 체험 프로그램을 경험한 학생들 간의 차이분석, 학년별 측정 시기의 다양화를 통해 진행 될 수 있는 다른 유형의 연구를 위한 기초자료로 사용 될 수 있을 것이다.