• Knowledge Management Research
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• v.13 no.4
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• pp.13-29
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• 2012

Although the role of information systems (IS) on environmental sustainability much attention, the coordination between green practices and environmental management information systems (EMIS) in a firm remains unexplored area in environmental management and IS disciplines. This study elaborated the antecedents of the coordination between green practices and EMIS and then examines the links among them. Also, this study investigated the links from the coordination between green practices and EMIS to firm's environmental performance. The results showed that both attitudes of managers who are responsible for a firm's green practices and their support had direct effects on the coordination between green practices and EMIS. Also, consistent with environmental management literature, the study provides a better understanding of the relationship between the coordination between green practices and EMIS and environmental performance.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.395-401
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• 2013

In a situation of crisis, an ambulance is dispatched according to the given emergency management information system(EMIS). However, the problem of past EMIS is that they did not concentrate on the reliable communication between the ambulance and medical specialists, thereby causing some needless casualties. This paper presents HEMIS, a highly-reliable emergency management information system, to solve such flaws. The effects showed that HEMIS was superior in data packet size, data safety and quality of service(QoS) to that of typical EMIS. Therefore, HEMIS is expected to increase the quality of medical service in ambulances, thereby decreasing casualties of patients carried in ambulances.

• Proceedings of the Korean Society for Quality Management Conference
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• 2006.11a
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• pp.341-345
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• 2006

현대의 기업 활동을 위한 시장 상황은 제품에 대한 글로벌 환경규제가 갈수록 강화되어가고 있으며, 기업들은 생존을 위해서는 다양한 환경규제에 능동적으로 대응하며, 기업의 지속적인 성장을 모색해야 하는 것이 현실이다. 본 연구 논문에서는 글로벌 환경 정책의 변화 트랜드를 살펴보고, 글로벌 핵심 환경 규제 및 지침인 RoHS, WEEE, EuP, REACH 및 ISO 14000 환경경영시스템 등 국내기업들이 각종 환경 규제에 대응하기 위해서 구축하고 있는 환경관리 정보시스템들에 대하여 그 종류 및 형태를 살펴보고, 효율적인 환경관리정보시스템(EMIS) 구축을 위한 방안을 도출하였다.

• Smart Structures and Systems
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• v.16 no.5
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• pp.835-851
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• 2015

This paper presents theoretical and experimental evaluation of the structural health monitoring (SHM) capability of piezoelectric wafer active sensors (PWAS) at elevated temperatures. This is important because the technologies for structural sensing and monitoring need to account for the thermal effect and compensate for it. Permanently installed PWAS transducers have been One of the extensively employed sensor technologies for in-situ continuous SHM. In this paper, the electro-mechanical impedance spectroscopy (EMIS) method has been utilized as a dynamic descriptor of PWAS behavior and as a high frequency standing wave local modal technique. Another SHM technology utilizes PWAS as far-field transient transducers to excite and detect guided waves propagating through the structure. This paper first presents how the EMIS method is used to qualify and quantify circular PWAS resonators in an increasing temperature environment up to 230 deg C. The piezoelectric material degradation with temperature was investigated and trends of variation with temperature were deduced from experimental measurements. These effects were introduced in a wave propagation simulation software called Wave Form Revealer (WFR). The thermal effects on the substrate material were also considered. Thus, the changes in the propagating guided wave signal at various temperatures could be simulated. The paper ends with summary and conclusions followed by suggestions for further work.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11a
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• pp.223-226
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• 2003

정보통신기술을 활용한 교수-학습자료가 만들어지고 효율적인 공유 유통을 되기 위해서 국제 표준을 기반으로 하는 메타데이터 구조가 만들어지고 교수-학습자료 분류체계가 정립되었다. 이를 바탕으로 한 교수-학습자료 메타데이터 입력기를 개발하면서 기존의 교육용 컨텐츠 및 메타데이터 입력기의 단점을 SOAP 프로토콜을 적용하여 개선하였으며 사용자 입력항목을 동적으로 구성할 수 있는 XML 환경파일을 관리자가 만들 수 있도록 하였다.

• Proceedings of the IEEK Conference
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• 2001.06b
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• pp.173-176
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• 2001

A new EMI estimation technique concerned with a PDP system is presented. A physical circuit model is developed which can fairly well describe the AC-PDP system. Then EMIs are determined by exploiting Hertzian dipole antenna model. The simulation results are experimentally verified with the test panel. The AC PDP system was measured in the frequency range of 30MHz ~ 300MHz in a semi-anechoic chamber, according to CISPR 13 code. Thereby, it is shown that the proposed technique can be usefully employed for EMI reduction.

• Journal of electromagnetic engineering and science
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• v.5 no.4
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• pp.193-196
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• 2005

The DC power-bus for the PCB is loaded with metal walls on its selected sides and is characterized electromagnetically. This is a novel concept of approach to mitigate the spurious resonance and finally signal integrity problems. In particular, the peak at DC, which is always in the way to secure parallel-plates' EMC, can be completely removed by the proposed method. Through the findings of this study, the effect of metal-loading of the power-bus will be presented along with the impression that the suggested technique can tackle the headaches of signal integrity, ground bounce, EMIs.

• Journal of Astronomy and Space Sciences
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• v.15 no.1
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• pp.27-38
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• 1998

We discussed four different methods - the single, double and triple Gaussian fits, and the intensity weighted centroid fit - which extract rotation curves from several emis-sion lines(i.e. [OII], $H{\beta}$, [OIII], and $H{\alpha}$) of spiral galaxies. Spatial extents and the shapes of rotation curves derived through various methods applying to each emission lines of a sample galaxy UGC 11635 are all in a good agreement with one another. Linewidths of $H{\beta}$ and $H{\alpha}$ measure from rotation profiles are in a good agreement with $H{\alpha}$ linewidth of Courteau (1992). however, linewidths of [OII] seems to be much broader than $H{\alpha}$, and the profile of [OIII] does not follow the profile of $H{\alpha}$.

• Journal of Advanced Marine Engineering and Technology
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• v.22 no.6
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• pp.754-762
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• 1998

Exhaust emissions in diesel engine are affected by fuel properties but the reason for this is not clear. Especially the recent strong interest in using low-grade fuel demands extensibe investigation in order to clarify the exhaust emissions. Bio-Diesel oil has a great possibility to solve the pollution problem caused by the exhaust gas from diesel engine vehicles. The use of bio-oils in diesel engines has received considerable atten-tion to the forseeable depletion of world oil supplies. So bio-diesel oil has been attracted with attentions for alternative and clean energy source. The purpose of this paper is to evaluate the fea-sibility of the rice-bran oil for alternative fuel in a diesel engine with rgard to exhaust emis-sions.

• Journal of Engineering Education Research
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• v.14 no.6
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• pp.16-23
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• 2011

As a basic study on an effective operation of EMIs (English Medium Instructions) gradually expanded by social needs, the research analyses the effects of English competence, motivation, achievement, and self-confidence on learners' satisfaction and cognition of effects of EMI. Sixty-seven students (55 male and 12 female students) of the department of Civil Engineering in University A participated in the research. First, the analysis results indicate that participants evaluated their own English competence and self-confidence below average but evaluated English motivation and achievement above average. Second, participants' satisfaction with EMI was above average but they cognized its effects below average. Third, English motivation and self-confidence influenced on learners' satisfaction and cognition of effects of EMI in a meaningful way. Especially, English self-confidence influenced relatively more on the two dependent variables. Based on those result, the implications were suggested.