자바리, Epinephelus bruneus의 난 발생과 부화에 미치는 수온의 영향

양문호,최영웅,정민민,구학동,오봉세,문태석,이창훈,김경민,한석중,Yang, Moon-Ho,Choi, Young-Ung,Jung, Min-Min,Ku, Hag-Dong,Oh, Bong-Sae,Moon, Tae-Seok,Lee, Chang-Hoon,Kim, Kyong-Min,Han, Seock-Jung 한국발생생물학회 2007 발생과 생식 Vol.11 No.2

This study examined temperature effect in egg development and hatching of longtooth grouper, Epinephelus bruneus. Fertilized embryos was not growth after morula stage at $15^{\circ}C$, at 18, 21, 24 and $27^{\circ}C$, the required time from fertilized embryos to hatching were 70 h. 30 min., 44 h. 10 min., 29 h. 10 min. and 24 h. 30 min., respectively. The hatching rates at $24^{\circ}C$ were higher than the other conditions and the hatching was not occurred at $15^{\circ}C$. These results suggest that the water temperature range of egg development and hatching was $18{\sim}27^{\circ}C$. 이 연구는 실내 사육수조에서 자연산란 후 수정된 난을 대상으로 수온에 따른 난 발생속도와 부화율을 조사하였다. 부화에 이르기까지 각 수온조건에서 소요된 시간은 $15^{\circ}C$에서 상실기 이후 발생이 진행되지 않았고, 18, 21, 24, $27^{\circ}C$에서 각각 70시간 30분, 44시간 10분, 29시간 10분 그리고 24시간 30분이 소요되었다. 부화율은 $15^{\circ}C$에서 0%였고, 18, 21, 24 그리고 $27^{\circ}C$에서 각각 $8.3{\pm}1.2%$, $18.0{\pm}6.2%$, $24.0{\pm}4.0%$ 그리고 $17.0{\pm}7.2%$로 뚜렷한 차이 없이 $24^{\circ}C$에서 다소 높았고 21와 $27^{\circ}C$에서 비슷한 경향이었으며 $18^{\circ}C$에서 가장 낮게 나타났다. 이러한 결과에서 자바리의 난발생 수온범위는 $18{\sim}27^{\circ}C$로 제안된다.

개의 흉추 및 요추에서 배측 추궁절제술 1례

김명철,이재일,이수진,김종만,황학균,서지민,이영원,김덕환,신상태 충남대학교 수의과대학 동물의과학연구소 2000 動物醫科學硏究誌 Vol.8 No.-

In dorsal laminectomy for the surgical treatment of thoracolumbar disc disease in dog, the bur could slip into the vertebral canal. For the decrease of this probability of danger, osteotome was used with instruments such as bur and rongeur in dorsal laminectomy. At thoracic vertebrae (T10-T11) and lumbar vertebrae (L5-L6) area, dorsal laminectomys were performed in a dog. In observation for 3 months after surgery, the dog revealed healthy physical condition. For the confirmation of healing condition at 3 months after dorsal laminectomy, two surgical sites were exposed by incision. Excellent healing response was observed with no adhesion and fibrosis in the vertebral canal.

통합적 워크플로우시스템 구축에 대한 탐색적 연구

안봉근,주기중,김학민 한국의사결정학회 2002 경영과학연구 Vol.11 No.-

요약, 경영환경 변화의 가속화와 고객요구의 다양화로 인해 기업은 경쟁력 향상을 위한 방안으로 기업자원관리, 고객관계관리, 지식경영 등에 대한 연구와 활용이 증가하고 있다. 그러나 이러한 경영기법들의 통합이나 상호작용성에 대한 고려가 부족한 실정이다. 이에 본 연구에서는 기업프로세스적 사고를 중심으로 각각의 경영기법과 애플리케이션들이 서로 연동될 수 있는 통합적 워크를 로우시스템 구축의 필요성과 방법에 대해 논의하고 있다. 워크플로우시스템 중심으로 각 모듈들이 구축된다면 기업프로세스 개선에 있어서 비용과 효과측면에서 보다 나은 성과로 이어질 것으로 기대된다. 또한 TQM의 관점에서 경영환경 및 고객요구의 변화에 따라 지속적 개선이 가능하도록 구축되어야 한다.

Determinant Factors of Korea e-Trade Performance : Based on Transaction Cost Theory

Hag-Min Kim,Ho-Hyung Lee 한국무역학회 2008 한국무역학회 국제학술대회 Vol.2008 No.12

Countries all around the world have been actively investing on building up global e-trade infrastructure for international transactions such as goods and services and money. Such investments have facilitated business firms to make greater use of e-trade and to improve their management performance. The objective of this paper is to review the mechanics of howe-trade practices can work on firm performances. It is well known that the introduction of e-trade systems can decrease transaction costs at macro level and thus in many times the data set is collected based on individual persons. But this paper attempts to determine whether trade transaction costs make influences on the exporting firms performance at firm-level. A theoretical framework is suggested for determining the usage and performance of global e-trade and empirical analysis has been made for Korea exporting firms. This paper concludes that the e-trade has yet to overcome the barriers resulting from transaction cost and thus it is very important to increase both organizational information and global capability. In this regard, appropriate actions like education and training programs should be implemented in order to get the Korea e-trade matured.

Determinant Factors of Korea e-Trade Performance : Based on Transaction Cost Theory

Hag-Min Kim,Ho-Hyung Lee 韓國貿易學會 2008 國際學術大會 論文集 Vol.2008 No.12

Countries all around the world have been actively investing on building up global e-trade infrastructure for international transactions such as goods and services and money. Such investments have facilitated business firms to make greater use of e-trade and to improve their management performance. The objective of this paper is to review the mechanics of howe-trade practices can work on firm performances. It is well known that the introduction of e-trade systems can decrease transaction costs at macro level and thus in many times the data set is collected based on individual persons. But this paper attempts to determine whether trade transaction costs make influences on the exporting firms performance at firm-level. A theoretical framework is suggested for determining the usage and performance of global e-trade and empirical analysis has been made for Korea exporting firms. This paper concludes that the e-trade has yet to overcome the barriers resulting from transaction cost and thus it is very important to increase both organizational information and global capability. In this regard, appropriate actions like education and training programs should be implemented in order to get the Korea e-trade matured.

간경변증 환자에서 간의 조직 괴사로 인해 공간점유병변을 보였던 중례 2예

김창민,김성배,정숙향,이진오,김유철,강태웅,남승모,김재학 대한소화기학회 1998 대한소화기학회지 Vol.32 No.1

Ischemic necrosis of the cirrhotic liver is rare because the liver has dual blood supply and an extensive collateral system. However, it may occur in the condition of sudden reduction of hepatic arterial flow such as acute blood loss or shock Recently, we experienced two cases of ischemic necrosis of the liver assoicated with cirrhosis. Those were presented as space-occupying lesions on the radiological study. In contrast with hepatocellular carcinoma, these lesions showed neither hypervascularity nor deposition of injected lipiodol. Repeated percutaneous fine needle cytology revealed no evidence of malignant cells, Furthermore, short-term follow-up examination showed decrease in size and/or extent of the lesions, It is important to differentiate these lesions from tumorous condition because interventional trial such as transarterial chemoembolization may further aggravate the ischemic lesion and unnecessary surgery under false impression of hepatocellular carcinoma in cirrhotic patients should be avoided.

Trade Barroers amd their Implications to Korea Trade

Hag-Min Kim,Ping Li 한국관세학회 2019 한국관세학회 학술대회 Vol.2019 No.6

Factors Determining e-Trade Performance Based on Transaction Cost Theory: The Case of South Korea

HAG-MIN KIM,HO-HYUNG LEE 한국무역학회 2009 Journal of Korea trade Vol.13 No.1

Countries worldwide have been actively investing in building up global e-trade infrastructure for international transactions such as those of goods, services, and money. Such investments have facilitated business firms’ making greater use of e-trade systems and improving their management performance. The objective of this paper is to review the mechanics of how e-trade practices can affect a firm’s performance. It is well known that the introduction of e-trade systems can decrease transaction costs at the macro level, because in many cases, data sets are compiled from a collection of individual transactions. However, this review attempts to determine whether trade transaction costs influence exporting firms’ performance at the firm level. A theoretical framework is suggested for determining the usage and performance of global e-trade. An empirical analysis of South Korean exporting firms has been undertaken. This paper concludes that e-trade has yet to overcome the barriers resulting from transaction costs, and that it is therefore very important to increase both organizational information and global capabilities. In this regard, appropriate actions such as intensive education and training programs should be implemented in order to make South Korea s e-trade mature.

Northeast Asia s Division of Labor with a Focus of Korea, China, and Japan

Hag-Min Kim,Sung-Hoon Lim,Jun-Ho Jeong 한국무역학회 2006 Journal of Korea trade Vol.10 No.3

This paper discusses the intra-industry trade and foreign direct investment in Northeast Asia in the context of Northeast Asia s division of labor. The volumes of trade and foreign direct investment in Northeast Asia is rapidly growing and thus it is important to discuss why and how the division of labor is explained by considering intra-industry products. In particular, this paper examines the behaviors of three countries, Korea, Japan and China, trades and FDIs. Several research results are found in this paper. First, this paper investigates the current trend of trade and foreign direct investments among the three countries and the intra-industry trades in computer products. It is found that electronics products are good candidates for international division of labor. Second, this paper provides analytical results about the relationship between the international division of labor and the types of industry in the three countries. It is found that each country has both competitive advantages and disadvantages even in a single industry and it is useful to decompose production activities in the international business value chain. The empirical results also support this intra-industry division of labor in the region. Finally, this paper recommends strategic directions on how all three countries need to synchronize their resources to accomplish highly sustainable competence in each industry. Even though limitations of this paper exist, one can find utility in understanding the changing nature of international competition as well as of applying the results presented here to certain industries.

Service Lifetime Prediction Models Based on Stochastic Stress and Resistance Factors

Hag-Min Kim 한국산업응용수학회 2001 Journal of the Korean Society for Industrial and A Vol.5 No.2-1

Some statistical decision support models for predicting the service lifetime of new devices are discussed. The importance of this problem has been recognized in the industry that makes new products or materials. Since the service lifetime of new material or systems is difficult to be determined resulting from the high variation of service lifetimes an alternative way is to execute several accelerated stress life tests and to characterize the failure events in laboratory environment. In this paper, probabilistic decision models are proposed to facilitate lifetime prediction by characterizing the functional relationships between and among such time-dependent factors as environmental stresses, material resistances to such stresses, and performance measures. This approach is motivated by the observation that the service lifetime of candidate materials is a function of performance over time; performance changes are caused by degradation mechanisms that result from the loss of resistance to the stresses experienced by the materials. Possible stochastic trends between stress and material resistance are assumed, and the performance of candidate materials is investigated. The present methodology should benefit those involved in lifetimes cost evaluations of a wide variety of materials or systems.