• 한국분말재료학회지
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• 제13권2호
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• pp.129-137
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• 2006

In this study, high purity fine $BaTiO_3$ powders were prepared by SHS (Self-propagating High-temperature Synthesis). We would examinate the study of sintering properties and characteristics as a function of temperature with various additives (binder, sintering agent). In separately binder addition, the green and sintered density of specimen were increased as binder content increases. The increased porosity resulted in fine grain size due to the inhibition of grain boundary moving. The $Al_{2}O_{3},\;TiO_{2}$ and MgO playa role of increasing dielectric constants at room temperature. These values were decreased at curie temperature. In case of $SiO_2$, the Curie temperature was decreased. In this study, a high dielectric ceramic capacitor material with temperature stability was synthesized by using various additives.

• 한국가정과교육학회지
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• 제16권4호
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• pp.95-105
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• 2004

본 연구의 목적은 청소년들이 건전하고 합리적인 소비생활을 영위할 수 있도록 실생활에 활용할 수 있는 실질적이고 효율적인 학교 소비자 교육 프로그램을 개발하는데 있다. 청소년을 대상으로 개발한 "나 가정, 사회 그리고 소비생활" 프로그램은 가정인. 생활인으로서의 개인이 소비생활과 관련된 일상생활에서 부딪히는 실천적 문제를 해결하는데 주안점을 두었다. 본 프로그램의 내용은 "나와 소비생활", "나와 가정의 소비생활", "나와 사회의 소비생활"로 구성되었으며. 이를 통하여 청소년들은 소비생활에서 부딪히는 실천적 문제를 해결할 수 있는 실천적 추론 능력을 향상시킬 수 있고, 올바른 소비 가치관을 형성하여 미래의 현명한 소비자로서의 역할을 수행할 수 있을 것이다.

• Biotechnology and Bioprocess Engineering:BBE
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• 제11권1호
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• pp.38-42
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• 2006

When whole cells are subjected to pyrolysis gas chromatography/mass spectrometry (Py-GC/MS) analysis, it provides biochemical profiles containing overlapping signals of the majority of compounds. To determine marker compounds that discriminate embryogenic calluses from nonembryogenic calluses, samples of embryogenic and nonembryogenic calluses of five higher plant species were subjected to Py-GC/MS. Genetic programming of Py-GC/MS data was able to discriminate embryogenic calluses from nonembryogenic calluses. The content ratio of 5-meyhyl-2-furancarboxaldehyde and 5-(hydroxymethyl)-2-furancarboxaldehyde was greater in nonembryogenic calluses than in embryogenic calluses. However, the content ratio of phenol, p-cresol, and $^1H-indole$ in embryogenic calluses was 1.2 to 2.4 times greater than the ratio in nonembryogenic calluses. These pyrolysates seem to be derived from the components of the cell walls, which suggests that differences in cell wall components or changes in the architecture of the cell wall playa crucial role in determining the embryogenic competence of calluses.

• Journal of Information Technology Applications and Management
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• 제16권3호
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• pp.113-124
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• 2009

How can action learning program promote organizational learning performance and especially project based team performance in Web-based small and medium-sized enterprises (SMEs)? This article discusses the association between project based team in action learning program and the performance of Web-based SME to be learning organization. In the case of ALPACO, action learning program that promote employee communication behavior, knowledge sharing, and organizational learning are found to be positively associated with the project based team performance and organizational learning, The results indicate that action learning program in SMEs indeed associated with greater knowledge sharing, learning communication skills and changing organizational culture. Learning organization can be, in turn, positively developed by project based team through action learning program for creating competitive advantage, Also, this study offers further support for the practical perspective on learning organization performance. The evidence from this case study suggests that the project team in action learning program playa significant role in team performance and the development of learning organization of the firm. Therefore, in the future, Web-based SMEs should consider making investments in action learning program that encourage project team's effective management in decision making, knowledge sharing, and organizational learning.

• Clinical and Experimental Reproductive Medicine
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• 제20권1호
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• pp.95-98
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• 1993

Salpingoscopy may be helpful in the diagnosis of subclinical epithelial, vascular damage and stricture formation, which may playa significant role in infertility, or predispose women to tubal pregnancy, despite of clear demonstration of tubal patency on hysterosalpingogram. We explored the fallopian tube from the fimbriae to the ampullary-isthmic junction with small rigid flexible endoscope during laparoscopy in sixteen patients from July 1991 to Jan. 1992. All patients have been observed following salpingoscopy for several months. Three pregnancies were achieved in seven patients with bilaterally normal or minimally damaged tubal mucosa. In another five patients with moderate to severe tubal damage, we noted one tubal pregnancy. The other remaining patients are being followed up now. As conclusions, salpingoscopy seems to be an useful tool in the diagnosis of tubal lesions which are not identified by H.S.G., give much help to refine the indications for tubal microsurgery and the selection of patients for GIFT or IVF-ET and to determine the prognostic value in terms of risk for ectopic pregnancy.

• 한국환경교육학회지:환경교육
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• 제19권3호
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• pp.114-122
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• 2006

Since 1985, the Ministry of Environment have supported environment conservation model schools (ECMS) to promote more structured and effective environmental education in schools. For driving ECMS to playa central role for sustainable schools in the community in Korea, international trends in foreign environmental education model schools need to be analysed in addition to overall evaluations of the present status. Eco-school related initiatives as whole-school approaches in other countries include Eco-Schools, Green School, Enviro School, and Sustainable School, etc. and most of them are usually involved in international network such as ENSI(Environment and School Initiatives) and FEE(Foundation for Environmental Education). This study was based on the literature analysis, which included available documents and reports of other countries from country reports, web-pages or official documents. Also, face-to-face or email interviews with personnels responsible for running such initiatives in a couple of countries were conducted. Implications for operating and supporting ECMS were provided based on the analysis and investigation on eco-school related initiatives of other countries, which included the main objective of initiatives, overall program direction, supporting methods, criteria for selection or accreditation, evaluation and monitoring.

• 대한한의학회지
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• 제17권1호
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• pp.465-477
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• 1996

Inhibitory effects of Hyeulbuchuckeutang(H.B.T) On the peroxidations of lecithin-liposomes by active oxygens, hydroxyl radical and superoxide anion, derived from hydrogen $peroxidase-Fe^{2+}$ system and xanthine- xanthine oxidase system. These effects were similar to and stronger than those of catalase, mannitol, superoxide dismutase or $dl-{\alpha}-tocopherol$ as a scavenger or an antioxidant. H.B.T. inhibited the peroxidation of lecithin-liposome and active oxygens in concentration-dependent manner. H.B.T. also dose-dependently protected the cell death mduced by tert-butvlhydroperoxide(tBHP) and significantly increased cell viability in the rat normal liver cell (Ac2F). These results suggested that H.B.T might playa protective role in lipid peroxidation by free radicals and tBHP.

• 한국유통학회지:유통연구
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• 제10권4호
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• pp.89-111
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• 2005

본 연구는 전자제품 소매 유통점에서 인지적 비용이 서비스 품질에 대한 평가와 점포 충성도간의 관계에 어떠한 역할들 하는지를 파악하기 위해 구조방정식 모형을 이용하여 이들간의 관계를 규명하고자 하는데 목적을 두고 있다. 연구 결과에 의하면, 인지적 비용이 서비스 품질과 점포 충성도와의 관계에서 매개역할을 하는 것으로 나타났다. 물리적 환경은 인지적 비용을 통해 간접적으로만 점포 충성도에 영향을 주는 것으로 나타난 반면 인적 서비스는 점포 충성도에 간접적인 효과뿐만 아니라 직접적인 효과가 있는 것으로 나타났다. 또한 구매고객 및 잠재고객 집단 간에 모델의 차이가 있는 것으로 나타났다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제3권1호
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• pp.37-43
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• 2003

Current Internet system of the entrance exam information to the university that is depending on searching key to solve the overloaded problem in the network and DB server or other tools to support HTML edit, haven't satisfied user's wants by supplying uniformed searching system. So this thesis will establish EEIS(Entrance Examination Information System) to prevent database overload phenomena when many users request a great amount of data at the same time and improve the decrease of speed and overload problem in DB server. EEIS playa role of bridge between outside client and DB server by placing VVS(Virtual View Server) between web server and DB server. By that method this system give users several usefulness in convenience and variety by supplying realtime data searching function to user. EEIS also give inner system manager more efficiency and speed in control the management system by solving those problem. This system is design and implementation to satisfy user's desire and give them more convenience and bring up the confidence of university that adopt this system at the end.

• Journal of Community Nutrition
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• 제7권3호
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• pp.141-148
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• 2005

Food handling practices playa key role in the prevalence of food-borne illness. Despite the fact that pregnant women are high risk groups for food-borne disease, little is known about their actual food handling practices at home. The objective of this study was to investigate behaviors regarding food-related hygienic practices of pregnant women. The questionnaire included questions in five major areas : personal hygiene ; adequate cooking ; avoiding cross contamination ; keeping food at safe temperatures ; and avoiding food from unsafe sources. Analysis of 488 questionnaires showed the respondents were unaware of the importance of safe food handling practices. Especially, pregnant women in our study should be encouraged to be careful about either risk of adequate cooking $(2.08\pm0.66)$ and keeping foods at safe temperatures $(2.69\pm0.63)$. Residency and number of children were consistent independent predictors of food handling behaviors. Previous food safety education also was found to have significant effect on food handling practices. TV news and newspapers were considered the most usable sources of food safety information by respondents. The behaviors identified in this study represent ones of particular importance for high-risk populations, like pregnant women. These population characteristics identified in this study could be incorporated in development of food safety educational programs for pregnant women being vulnerable on food-borne illness. Our results could have implications for the design of effective food safety educational efforts. This study indicates the need for continued and improved food safety education and for enforcing systematic food safety education for pregnant women.