• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.253-255
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• 2004

The mining-related damages such as ground subsidence, acid mine drainage(AMD), and deforestation in the abandoned underground coal mine areas become an object of public concern. Therefore, the system to manage the miningrelated damages is needed for the effective drive of rehabilitation activities. The management system for Abandoned Underground Coal Mine using GIS includes the database about mining record and information associated with the mining-related damages and application programs to support mine damage prevention business. Also, this system would support decision-making policy for rehabilitation and provide basic geological data for regional construction works in abandoned underground coal mine areas.

• Korean Management Science Review
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• v.28 no.1
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• pp.91-105
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• 2011

Among various types of creativity, team creativity has been always receiving attention from both practitioners and researchers because most of works are done in a team format in organizations. Therefore, it would be the best way for corporate performance to increase when team creativity is managed carefully to increase in a steadfast way. Though there are lots of ways to grow team creativity, this study explores the issue of increasing the team creativity by adopting CMC (computer-mediated communication) and exploration and exploitation, which were studied separately, but never analyzed together in the same research framework. Experiments to prove the validity of the research questions are based on ABM (Agent-Based Modeling) simulation. Netlogo language was adopted to build a prototype engine for the simulation engine. Experiment results revealed that in the short-term, both broad CMC mode with high exploration and exploitation, and local CMC mode with high exploration and exploitation result in higher team creativity than other types of combination. However, in the long run, broad CMC mode yields higher team creativity level than local CMC mode.

• Journal of the Korea Convergence Society
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• v.10 no.11
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• pp.375-386
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• 2019

Improving performance needs Creativity and Improving Creativity needs clear communication of work orders in technology development projects. This study empirically analyzed the effects of team efficacy and knowledge sharing on communication competence and the effects of communication competence on individual creativity and product development performance. The purpose of this study is to verify the importance of communication and personal creativity in technology development projects and to suggest ways to improve communication capabilities. A survey was conducted of participants in technology development and the relationship between variables was confirmed by the structural equation model. The results show that team efficacy and knowledge sharing had a positive effect on communication competence, and that the clear delivery and understanding of team orders were the main factors in improving individual creativity. The results of this study will contribute to improving the communication competence of participants who are required for improving individual creativity in technology development projects in which high technology is converged. In the future, we will study the effects of Communication Competence on Organizational Creativity.

• Proceedings of the KOSOMBE Conference
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• v.1997 no.05
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• pp.285-289
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• 1997

In this paper, we describe the intrabed and interbed network in a developed patient monitoring system. Intrabed network handles data communication among the main unit of a bedside monitor and parameter modules plugged in it. Interbed network deals with a higher level data communication among many bedside monitors, central stations, DB servers, and clinical workstations. Analyzing the data communication requirements in each stage of the system, we designed the intrabed network based upon RS-485 and HDLC protocol with 1Mbps data rate. Interbed network is designed to utilize the industry standard 10Base-T Ethernet with TCP/IP and UDP protocol. We present the specifications and the performances of the developed data communication networks in the patient monitoring system.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.66 no.5
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• pp.877-884
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• 2017

A method of common earth, which is proposed by French Railway(SNCF) and is applied to high speed railway, minimizes the effect of the traction return current from tracks so that trackside electric devices can be protected and operation and maintenance staffs are kept out from injury in an electric railway environment. According to it, all the new domestic electric railway lines are replaced from existing individual earth method to the common earth method. In this paper, we analyze the correlation between common earth method and traction return current to prove whether the common earth has surely contributed to minimize the effect of the traction return current. The analysis was done based on the measurement of the traction return current at the domestic high speed railway line.

• Proceedings of the IEEK Conference
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• 2002.07b
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• pp.1054-1057
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• 2002

The design and fabrication of Q-band 3-stage monolithic microwave integrated circuit(MMIC) amplifier for WLAN are presented using 0.2$\square$ AIGaAs/lnGaAs/GaAs pseudomorphic high electron mobility transistor (PHEMT). In each stage of the MMIC, a negative feedback is used for both broadband and good stability. The measurement results are achieved as an input return loss under -4dB, an output return loss under -10dB, a gain of 14dB, and a PldB of 17dBm at Q-band(36～44GHz). These results closely match with design results. The chip size is 2.8${\times}$1.3mm$^2$. This MMIC amplifier will be used as the unit cell to develop millimeter-wave transmitters for use in wideband wireless LAN systems.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.11a
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• pp.559-560
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• 2009

네트워크를 이용한 LED 조명의 제어는 최근 IP(Internet Protocol)을 이용한 조명 제어와 융합되어 단순한 디밍(Dimming)제어 뿐만 아니라, 미디어 파사드(Media facade), 카이네틱 아트(Kinetic Art)등의 새로운 조명 분야로 범위가 확대 되고 있다. 본 논문에서는 다양화 되는 네트워크 기반의 제어 방식 중 DMX over IP 에 대하여 멀티케스트-다중화 방식(Multicast & Multiplexing)으로 분석 및 시뮬레이션 하였다. 그 결과 1 만개 이상의 채널 수를 가지는 규모가 큰(large volume) 조명 네트워크 시스템의 경우 채널의 개수 증가가 delay-throughput 에 영향이 적음을 알 수 있다.

• The Korean Journal of Coaching Psychology
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• v.5 no.2
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• pp.25-51
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• 2021

The purpose of this study is to deeply explore the communication process with team members perceived by team leader. To this end, in-depth interviews were conducted with 10 team leaders, and analyzed according to the grounded theory research method procedure suggested by Strauss and Corbin. As a results, a total of 51 concepts, 17 subcategories, and 8 categories were derived. As a causal condition, the concept of 'contemplating and reinterpreting communication necessary for the organization' was derived, and the central phenomenon was 'intentional effort made in parallel with work and private conversations'. The contextual condition was 'recognizing the need to cope with environmental changes', and the mediating condition was 'self-reflection and self-coaching time' was derived. The action/interaction strategy was conceptualized as a communication process with task-oriented coping, conflict resolution coping, and relationship promotion coping, and was confirmed as 'recognizing virtuous cycle communication within the organization' as a result of interaction with the central phenomenon. As a result of analysis of the team leader's communication process, the effort stage, approach stage, coping stage, and cycle stage were shown. As a result of the type analysis, task-oriented coping was a facilitator, conflict resolution coping was a supporter, and relationship promotion coping was a considerate. This study is an empirical study on how the corporate team leader perceives and expresses communication in the relationship with the team members.

• Journal of Fisheries and Marine Sciences Education
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• v.27 no.1
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• pp.108-114
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• 2015

The purpose of this study is to find the relationships among communication competency, social network centrality(trust centrality and knowledge sharing centrality), discussion performance, and online boarding activity in the team based learning situation. For investigating this topic, 44 students are participated in the classes of educational technology. In order to find out the relationships among communication competency, social network centrality, discussion performance, and online boarding activity, compared t-test and path analysis are used. Followings are the results of the research: (a) Communication competency is improved significantly after team based learning. (b) Trust centrality effects significantly on the knowledge sharing centrality. (c) Knowledge sharing effects significantly on discussion performance. (d) Trust centrality effects on the online boarding activity in the team based learning.

• Journal of the Korea Safety Management & Science
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• v.6 no.1
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• pp.269-281
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• 2004

This study aims to examine the effects of team member characteristics(change reception, work understand) and team process(potency, social support, workload sharing, communication and cooperation within the team) to team effectiveness(job commitment, job satisfaction and productivity), As the result, both team member characteristics and team process have positive relations with team effectiveness.