• 지식경영연구
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• 제13권4호
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• pp.101-116
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• 2012

Knowledge management system is crucial for increasing organizational performance. However, despite this importance of knowledge management system, many companies fail to facilitate individual employees' knowledge sharing. One of reasons for this failure is the lack of consideration of how individual employees' characteristics and their interpersonal relationship influence on individual-level knowledge sharing. To explain individual-level knowledge sharing, this study investigates the mechanism that employees engage in knowledge sharing activities with their coworkers from the social exchange perspective. We have two purposes of study. First, we examine whether coworker's task-related help seeking affects employee's knowledge sharing with them. Second, we investigate the influence of help-seeker' characteristics as moderators on the relationship between task-related help seeking and knowledge sharing. Specifically, we considered coworker's maladjustment, LMX, and ability as moderators. Our analysis of 192 employees shows that the main effect of coworker's task-related help seeking on knowledge sharing is not significant. However, coworker's maladjustment and LMX moderate the relationship between task-related help seeking and knowledge sharing. The positive relationship between task-related help seeking and knowledge sharing is stronger when help seeker's maladjustment is high than when it is low. And the positive relationship between task-related help seeking and knowledge sharing is weaker when help seeker's LMX is high than when LMX is low. The results of this study have theoretical implications that enrich our understanding of individual-level knowledge sharing, and managerial implications that suggest employees' appropriate attitudes to facilitate knowledge sharing in a coworker relationship.

• 컴퓨터교육학회논문지
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• 제13권4호
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• pp.51-59
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• 2010

상당 기간의 학습공백에서 벗어나 원격 혹은 사이버대학 수업에 참여하게 된 성인 학습자들은 초기 학습 참여에 많은 어려움을 경험하게 된다. 이러한 학습과정의 어려움을 극복하도록 지원하기 위해서 신규로 사이버대학 수업에 참여하게 되는 신입생과 편입생 학습자들을 중심으로 이들의 이러닝 준비도를 조사하고 학습이 수행되는 과정에서 이들의 학습활동을 분석할 필요가 있다. 본 연구의 목적은 사이버대학 신입생과 편입생 학습자들의 이러닝 준비도 수준을 진단하고 이들의 학습활동 유형을 분석하였다. 연구결과, 신입생과 편입생은 사이버대학 수업에 참여할 수 있는 기본적인 지식과 기술을 소유하고 있었으며, 이들은 상호작용, 학습과제 문의, 학습방법 등에 관한 일상적인 학습활동을 전개하는 것으로 나타났다. 또한 신입생과 편입생의 학습활동 양태 및 결과에 있어서는 뚜렷한 차이가 없는 것으로 나타났다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권1호
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• pp.227-247
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• 2018

For intermittently connected wireless sensor networks deployed in hash environments, sensor nodes may fail due to internal or external reasons at any time. In the process of data collection and recovery, we need to speed up as much as possible so that all the sensory data can be restored by accessing as few survivors as possible. In this paper a novel redundant data storage algorithm based on minimum spanning tree and quasi-randomized matrix-QRNCDS is proposed. QRNCDS disseminates k source data packets to n sensor nodes in the network (n>k) according to the minimum spanning tree traversal mechanism. Every node stores only one encoded data packet in its storage which is the XOR result of the received source data packets in accordance with the quasi-randomized matrix theory. The algorithm adopts the minimum spanning tree traversal rule to reduce the complexity of the traversal message of the source packets. In order to solve the problem that some source packets cannot be restored if the random matrix is not full column rank, the semi-randomized network coding method is used in QRNCDS. Each source node only needs to store its own source data packet, and the storage nodes choose to receive or not. In the decoding phase, Gaussian Elimination and Belief Propagation are combined to improve the probability and efficiency of data decoding. As a result, part of the source data can be recovered in the case of semi-random matrix without full column rank. The simulation results show that QRNCDS has lower energy consumption, higher data collection efficiency, higher decoding efficiency, smaller data storage redundancy and larger network fault tolerance.

• 한국중재학회지:중재연구
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• 제15권3호
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• pp.113-137
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• 2005

In the provisions of 'the Arbitration Law of China, there are special provisions for international arbitration. When a court refuses the recognition and enforcement of foreign arbitral awards or cancel the domestic awards relating to international arbitration, they have to adopt the provisions of 'Chinese Civil Procedure Law'. These provisions are the same as the provisions of Korean Civil Procedure Law concerning the reasons of renewal. In the Korean Arbitration Act, those provisions disappeared when it was revised on December 31, 1999. Among the characteristics of the Chinese arbitration system, a serious question is that it provides only institutional arbitration and there is no ad-hoc arbitration in the Chinese Arbitration Law. On the other hand, when the parties appoint three arbitrators according to their agreement, the parties appoint the third arbitrator by mutual agreement and when they fail to agree, the Arbitration Committee appoints the third arbitrator. In practice, as the parties hardly agree on the third arbitrator or sole arbitrator, the Committee usually appoints them. And appointing an arbitrator from out of their panel of arbitrators is permitted these days only under examination by the Arbitration Committee in accordance with the arbitration rules of the China International Economic and Trade Arbitration Commission, Other arbitration committees except the China International Economic and Trade Arbitration Commission are still prohibited from making appointments from out of their panel of arbitrators. Accordingly, arbitration in China cannot be predicted and poses a question about legal stability as party autonomy is restricted in the appointment of arbitrators and arbitral procedure. Such being the case it is strongly recommended to select Korea as the place of arbitration in transactions with China. However it is better to arbitrate than to file a law suit in China.

• 한국건설관리학회논문집
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• 제16권3호
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• pp.78-90
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• 2015

최근 건설 내수시장의 물량 감소에 따라 해외 건설 시장 진출을 가속화 하고 있다. 하지만 해외 시장의 경쟁력 심화에 따른 저가 수주 및 시장 정보 부족에 따른 수주 및 수행 실패 사례가 많이 나타나고 있다. 이에 따라 본 연구에서는 해외건설의 신규 시장에서 프로젝트를 수행하기 위한 필수 조사항목을 정의하고 일정한 기준에 따른 분류를 하여 표준 프레임웍을 개발하였다. 개발된 프레임웍을 실제 모로코 건축 프로젝트에 적용하였고 그 결과 제한적이긴 하지만 타당성을 검증하였다. 향후 좀 더 다양한 프로젝트에 적용하여 항목에 대한 검증 및 표준화가 필요할 것이지만 그간 체계적이지 못하게 나열되었던 항목들을 표준적인 프레임웍으로 정리하고 실무적으로 이를 사업초기의 사업환경 조사수단으로 활용가능하다는 점에서 의의가 있다고 하겠다.

• 한국수학교육학회지시리즈A:수학교육
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• 제46권1호
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• pp.53-67
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• 2007

During the recent years at a middle level Engineering School located at the local areas in Korea, more than 20 percent of freshmen had failed at their first College Mathematics. In consequence, many of them had hard time to survive at their major curriculums. The purpose of this study is to look for the main reasons of their failure and suggest an alternation of the present curriculum. Using the responses to the questionnaires and placement test scores, we studied the characteristics of the students' Mathematical abilities and analyzed how they were related to their grades of the First College Mathematics at the end of the first semester. The mathematical ability of the students at the middle level Engineering School turned out to range from bottom to top even though most of them revealed their interests towards Mathematics. The students with low scores at the placement test were more likely to fail at their first College Mathematics. Thus we suggest that the school should open a new preparation course ahead of the First College Mathematics for those who achieve low scores at the placement test and also professors should write proper books and develop ways of teaching.

• Journal of Construction Engineering and Project Management
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• 제2권2호
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• pp.18-27
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• 2012

Despite the rapid development in the construction industry due to the changing new technologies, many projects still fail to meet target deadlines. Shortage in manpower and skilled laborers is one of the main reasons for such delays. Markets with high economic growth and economic expansion (such as Gulf Countries in the Middle East) may have pronounced labor the shortages. Labor subcontracting practices are used sometimes to increase production rates and meet project deadlines. This paper explains and analyses labor subcontracting practices currently being used in many places around the world (and especially in the Gulf Countries) and in particular defines a maximum overtime rate for laborers in the laborer-subcontracting method ensuring that the contractor gains both the time saved during overtime and also reduces the cost per unit produced. The mathematical model used formalizes a closed-form equation for overtime pay in similar situations and as such can be applicable worldwide. Data was collected from representative projects that employed such practices from various trades. Validation of the model and formula has been tested successfully by analyzing historic data. The results prove that contractors often do not reach the optimum use of their practices resulting in a higher cost per unit. The presented model and the analysis should be of interest to many contractors currently involved in the practice or considering its use and to those who wish to find new methods that would help in eliminating as much wastes as possible by allocating their resources in the most efficient way.

• 한국응급구조학회지
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• 제1권1호
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• pp.71-86
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• 1997

This study is to suggest some developmental policies by analyzing the activities of first aid party in Kwangju and Chonnam regions for two years from Jan. 1, 1991 to the end of December, 1995. First, the residents in Kwangju and Chonnam regions have the sufficient benefits of emergency medical center, but it will be desirable that general hospital should be established and managed in Kohung peninsula which forms the wide island area far away from big cities. Second, the classification of the degree of severe case in the field by rescue members should be strengthened as the means which can reduce the number of patients transferred to the emergency room and the legal method which rescue members can select the medical agency. Third, children less than 10 are most frequent emergent patients and it is due to parent's indifference and children's in sensibility to safety. So the safely education in the course of infant and elementary education should be strengthened and the method which can keep the self safety through the legal system. Fourth, to increase the rate of emergency measure by rescue members, the reasons of fail of emergency treatment are suggested, the treatment results of each rescue member are analyzed every year and it is desirable that the system which can evaluate the personal ability should be introduced. Fifth, the medical accidents occurred in the case of medical act, by rescue members must lake the legal responsibility, but such a problem can he solved with the compensation of insurance system by government. Sixth, to reduce the time required for transfer, traveling service system for the fixed period in beach should be complemented and extended more and service system at ordinary times should be examined at mountains, the area of traffic jams and large special industrial park. Seventh, since service system with one team of two members of 119 rescue party in expressway cannot be mobilized when multiple accidents occur at the same time, it is considered that service system of two teams of four members should be extended. Eighth, first-aid service in expressway is conducted with rescue and emergency treatment by the rescue party at the same time, but the professional rescue lacks and it may result in the injury of patients. Therefore the creation of rescue party in expressway is the urgent problem.

• 대기
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• 제32권3호
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• pp.223-233
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• 2022

Recent studies have shown that Madden-Julian Oscillation (MJO) is modulated by Quasi-Biennial Oscillation (QBO) during the boreal winter; MJO becomes more active and predictable during the easterly phase of QBO (EQBO) than the westerly phase (WQBO). Despite growing evidences, climate models fail to capture the QBO-MJO connection. One of the possible reasons is a weak static stability change in the upper troposphere and lower stratosphere (UTLS) by neglecting QBO-induced ozone change in the model. Here, we investigate the possible impact of the ozone-radiative feedback in the tropical UTLS on the QBO-MJO connection by integrating the Global Seasonal Forecasting System 5 (GloSea5) model. A set of experiments is conducted by prescribing either the climatological ozone or the observed ozone at a given year for the EQBO-MJO event in January 2006. The realistic ozone improves the temperature simulation in the UTLS. However, its impacts on the MJO are not evident. The MJO phase and amplitude do not change much when the ozone is prescribed with observation. While it may suggest that the ozone-radiative feedback plays a rather minor role in the QBO-MJO connection, it could also result from model biases in UTLS temperature and not-well organized MJO in the model.

• 한국컴퓨터정보학회논문지
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• 제27권11호
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• pp.57-66
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• 2022

본 논문에서는 Sentence-BERT 모델을 활용한 법률 문서 검색 방법을 제안한다. 법률 검색 서비스를 이용하고자 하는 일반인들은 법률 용어 및 구조에 대한 이해가 부족함에 따라 관련 판례 검색 등에 있어 어려움을 겪고 있다. 기존의 키워드 및 텍스트마이닝 기반 법률 검색 방법은 판결문의 문맥에 대한 정보가 없으며, 동음이의어 및 다의어에 대해 구분하기 어려워 성능을 높이는 데 한계가 있었다. 그로 인해 법률 문서 검색 결과에 대한 정확도가 낮아 신뢰하기가 어려웠다. 이를 위해, 대법원 판례 및 법률구조공단 상담사례 데이터에서 일반인의 법률 검색 문장에 대한 성능을 개선하고자 한다. Sentence-BERT 모델은 판례 및 상담 데이터에 대한 문맥 정보가 임베딩 되므로, 문장의 의미 손실이 적어 TF-IDF 및 Doc2Vec 검색 방법과 비교했을 때보다 검색 정확도가 개선된 것을 확인할 수 있었다.