• Proceedings of the IEEK Conference
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• 2003.07b
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• pp.1069-1072
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• 2003

Germane-sillicide phase formation on S $i_{0.25}$G $e_{0.75}$ with Ni 100$\square$, Co 10$\square$/Ni 100$\square$ and Ni 50$\square$/Co 10$\square$/Ni 50$\square$ layer was studied by sheet resistance and Field Emission Scanning Electron Microscopy(FESEM). Thermal stability of nickel germane-silicide is found to be improved by sputtering Ni/Co/Ni on the SiGe. After annealing at 600, 650, $700^{\circ}C$, 30min., the nickel germane-silicide formed by Ni 50$\square$/Co 10$\square$/Ni 50$\square$ layer achieved a sheet resistance less than 17ohms/sq.(almost the same to the value before furnace annealing for 30min.) , while the process of the other two ways result in high sheet resistance and even sheet resistance fail due to Ge segregation.ion.

• Journal of the Korean Chemical Society
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• v.29 no.4
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• pp.456-458
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• 1985

• Proceedings of the Korean Vacuum Society Conference
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• 2011.02a
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• pp.157-157
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• 2011

박막형태로 제작이 가능한 비정질 실리콘은 결정질 실리콘에 비하여 AM-1 (Air Mass 1:100mW/cm2)조건하에서 10-3 S/cm 정도의 높은 광전기전도도와 가시광선 영역($4000{\sim}7000{\AA}$)에서 약 10배의 높은 광흡수계수를 가지며, $300^{\circ}C$ 이하의 낮은 기판온도에서 다양한 기판위에 대면적으로 제작이 가능할 뿐만 아니라 제작공정이 단순하여 제작비용이 저렴하다는 이점이 있다. 본 실험에서 제작된 모든 박막은 PECVD로 증착하였으며 구조는 p-i-n superstrate형 구조를 사용하였고, 각 박막의 두께는 p-a-Si:H/i-a-SiGe:H/n-a-Si:H ($300{\AA}/2000{\AA}/600{\AA}$)으로 고정하였다. a-Si:H (hydrogenated amorphous silicon) 태양전지의 광 흡수층인 i-layer에서의 germane 가스 유량 변화(0, 20, 40. 60, 80, 100 sccm)에 대한 흡수율의 차이를 UV/Vis/Nir spectrophotometer (ultraviolet/visible/near infrared spectrophotometer)를 통해 확인하고, 그에 따른 a-Si:H 박막 태양전지를 제작하여 solar simulator를 사용하여 AM 1.5 G의 환경 조건에서 태양전지 특성을 평가하였다. 그 결과 germane 가스 유량이 증가함에 따라 파장에 대한 absorptance (a.u.)값이 증가함을 알 수 있었으며, 흡수되는 파장영역의 범위가 장파장으로 확대됨을 확인할 수 있었다. 또한 germane 가스 유량이 60 sccm 일때 a-SiGe:H 박막 태양전지 변환효율이 3.80%로 최대값을 가졌다. 실험에서 germane 가스 유량이 증가할수록 흡수율이 높아져 태양전지특성이 향상될 거라 예상 했지만, 100 sccm보다 60 sccm일 때가 단락전류밀도 값과 변환효율이 높다는 것을 확인할 수 있었다. 이는 각 layer사이에 계면상의 문제가 있을 거라 예상되며 직렬저항측정을 통해 확인할 수 있다.

• Korean Medical Education Review
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• v.12 no.2
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• pp.27-33
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• 2010

The purpose of this study was to review the definition of cognitive load (CL), the relationship between CL and instructional design, and to provide a viewpoint of CL in curriculum and instructional design in medical education. Cognitive load theory (CLT) makes use of three hypotheses about the structure of human memory: working memory (WM) is limited in terms of the amount of information it can hold, in contrast with WM, long term memory is assumed to have no limits and organizes information as schemata. CL indicates the mental load on the limitation of WM. CLT has been used to design instructional interventions that help to ease the learning process. Extraneous CL is related to irrelevant instructional interventions, while intrinsic CL is the complexity of the information itself. Germane CL is the cognitive process for acquiring schema formation. It is a necessary CL to achieve deeper comprehension and solve problems. The range of medical education includes complex, multifaceted and knowledge-rich domains with clinical skills and attitudes. Therefore, CLT may be used to guide instructional design in medical education in terms of decreasing extraneous CL, adjusting intrinsic CL and enhancing the germane CL.

• Journal of the Korean Society for information Management
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• v.37 no.3
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• pp.177-202
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• 2020

In this study the author examines the health information seeking behavior of older adults from the perspective of cognitive load. Using a qualitative method, based on ground theory, data were collected using in-depth interviews. Twenty-eight participants were participating older adults living in G community city, South Korea who experienced seeking health information. Interview transcripts were analyzed using a qualitative thematic coding framework. Three themes describing older adults' health information seeking behaviors were focused: intrinsic, extraneous, and germane cognitive load. The findings are geared towards the context of older adults' information seeking to support an understanding of successful information seeking behaviors in this population and to contribute to their health and well-being. The intent is to present information on current research in the field of Library and Information Science and to demonstrate how a cognitive load approach can be used to address the problems of older adults' health information seeking behaviors.

• Knowledge Management Research
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• v.10 no.1
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• pp.53-70
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• 2009

This study empirically explored what promotes exploration, through a case analysis of a Korean SME (small and medium sized enterprise), based on the research framework which focuses on the identification and the selection of exploratory NPD (new product development) alternatives, and the accumulation of novel capabilities in new technology domains. The learning process of the exploratory NPD project described is as follows. The identification barrier of exploratory NPD project is relatively low. Constructive crisis is germane to selecting exploratory NPD alternatives and to enduring the long payback period. New separated R&D unit is likely to implement the exploratory NPD project. The length of the gestation period of the exploratory NPD project is related with the level of the conflict between old members and new members. This study identified several antecedents of the exploratory NPD project. Prior success promotes the identification process of the exploratory NPD projects. Constructive crisis is related with CEO's personal characteristics such as future oriented and proactive personality. The proactive involvement and persuasion of CEO are germane to reducing the conflict between old and new members and to the success of the exploratory NPD project. Based on the results, this study discusses several implications and future research directions.

• Korean Journal of Materials Research
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• v.18 no.6
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• pp.302-306
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• 2008

Polycrystalline germanium (Ge) thin films were grown by metal organic chemical vapor deposition (MOCVD) using tetra-allyl germanium [$Ge(allyl)_4$], and germane ($GeH_4$) as precursors. Ge thin films were grown on a $TiN(50nm)/SiO_2/Si$ substrate by varying the growth conditions of the reactive gas ($H_2$), temperature ($300-700^{\circ}C$) and pressure (1-760Torr). $H_2$ gas helps to remove carbon from Ge film for a $Ge(allyl)_4$ precursor but not for a $GeH_4$ precursor. $Ge(allyl)_4$ exhibits island growth (VW mode) characteristics under conditions of 760Torr at $400-700^{\circ}C$, whereas $GeH_4$ shows a layer growth pattern (FM mode) under conditions of 5Torr at $400-700^{\circ}C$. The activation energies of the two precursors under optimized deposition conditions were 13.4 KJ/mol and 31.0 KJ/mol, respectively.

• Journal of the Korean Operations Research and Management Science Society
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• v.6 no.2
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• pp.35-49
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• 1981

This paper is concerned with developing a Multi-period Behavioral Model for the portfolio selection problem. The unique feature of the model is that it treats a number of factors and decision variables considered germane in decision making on an interrelated basis. The formulated problem has the structure of a Chance Constrained programming Model. Then empoloying arguments of Central Limit Theorem and normality assumption the stochastic model is reduced to that of a Non-Linear Programming Model. Finally, a number of interesting properties for the reduced model are established.

• Journal of the military operations research society of Korea
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• v.17 no.1
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• pp.130-145
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• 1991

The literature has recorded many models dealing with manpower forecasting and planning. The approaches used by the various authors are clearly disparate. This paper presents a taxonomy for manpower planning and forecasting methodologies and classifies the landmark developments in this field. The taxonomical schema is then applied to unify the models in consideration of the methods and the decision factors used for forecasting and/or planning. The taxonomy allows for the most complex model structure containing all the factors considered germane in the existing literature.

• International Journal of Computer Science & Network Security
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• v.22 no.9
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• pp.137-142
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• 2022

This paper argues for modern technologies in the educational process. It specifically outlines issues germane to virtual and augmented reality. It begins with an account on virtual reality and augmented reality, and touches on their characteristics, the advantages, obstacles and applications. It also discusses some relevant studies that emphasized the role of virtual and augmented reality in education, the difference between two terms. The paper ends with a note of vision on how to activate them in educational institutions.