• The Science & Technology
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• v.31 no.4 s.347
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• pp.24-26
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• 1998

우리나라 연구소들은 연구원들의 연구결과를 담은 노트북을 보관하지 않는다 많은 연구원들이 퇴직할 때는 마음대로 노트북을 가지고 나간다. 결국 연구소는 가장 중요한 지적재산을 잃게 되는 것이다. 또 실험실간의 안전시스템과 과다한 행정인력은 많은 문제점을 안고 있다. 과학입국을 위해 우리 연구소들은 효율적인 운영관리를 위한 수술이 시급하다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2006.10a
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• pp.185-186
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• 2006

• The Science & Technology
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• v.30 no.5 s.336
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• pp.26-27
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• 1997

국내 최고의 첨단연구장비를 갖춘 이화여대 고체화학연구실은 6곳의 실험실에서 신소재 합성을 위해 저온에서부터 2천~3천도가 넘는 고온가열실험을 계속하고 있다. 이 연구소는 96년도 노벨상 수상 분야인 C60연구에 착수, C60을 합성하여 요오드를 도핑시킴으로써 I2C60을 만드는데 성공하여 미국 학술지에 소개되기도 했다.

• The Science & Technology
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• v.31 no.6 s.349
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• pp.82-83
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• 1998

서울대 화학과 서정헌 교수와 화학교육과 백명현 교수부부는 서울대 화학과 동기생이자 실험실 짝으로 인연을 맺었다. 서교수는 요즈음 인공효소와 바닷물에서 우라늄을 추출해 내는 연구에 빠져 있으며 백교수는 무기재료에 이용될 수 있는 기능성 초분자 및 거대고리분자의 설계, 합성연구로 학문적 성과를 인정받고 있다.

• Journal of the Korean Institute of Gas
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• v.18 no.4
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• pp.86-94
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• 2014

To develop a Root Cause Analysis Map which determines the cause of the accident in chemical laboratory, The Root Cause Analysis(RCA) Map for the laboratory areas was sketched from Phase 1 of the accident element to Phase 3 of the accident element, based on the RCA Map which is applied in the petrochemical industry. On the basis of laboratory RCA Map which was classified by using such method. The root causes of the 211 accident cases in laboratories were classified from Phase 4 to Phase 5 by the Cause Factor Charting technique and The cause of the accident data were inputted to EXCEL program. After that, The causes of the accident data were sorted and classified by type and each step. So 'Approximate Primary RCA Map Draft' was written. In addition, it was reaffirmed whether the root causes of 211 accidents of laboratory were appropriate to 'Primary RCA Map Draft'. By complementing the cause which was expected to cause future accidents, the RCA Map for chemical laboratories was developed. Based on 'RCA Map' proposed in this study, the causes of accidents were analysed management systems 35%, monitoring 12.2%, Human Factor Eng. 15.1% and education training 12.1% by the size of the frequency from Phase 1 to Phase 5.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.11 no.4
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• pp.189-196
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• 1999

In order to verify a numerical model for the calculation of wave motion around an offshore barrier in shallow water, laboratory physical experiments are necessary. In this study, sample experiments are carried out on the wave and wave induced current fields due to a sloping bottom topography and on that due to an isolated structure from the coastline. The water body is divided into 4 levels, in which the current tracking floaters are deployed to measure the wave induced currents. Data measurement was continued using the limited wave gauges and current tracking floaters including a video camera from the top. The wave heights for the preselected surface and time-averaged velocity distributions at each level were measured in detail. The distribution of wave and current fields was analyzed precisely combining the whole measured laboratory data. Moreover, comprehensive analyses were carried out on non-linearity of wave transformation in terms of skewness and atiltness.

• Journal of the Korea Institute of Building Construction
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• v.16 no.6
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• pp.595-601
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• 2016

The insulation performance of the insulation currently used in building structures is reflected only during design based on initial performance and the reduction in heat insulation performance due to the degradation of long-term durability is not reflected. This study reviewed the degradation of heat insulation performance due to the durability degradation of insulating materials through the accelerated durability test. The study findings showed that the foamed polystyrene insulation bead method did not show performance degradation due to aging in the standard environmental condition and laboratory accelerated test condition but the performance is degraded in the freeze-thaw test condition. On the other hand, in the case of the extrusion method, the degradation of the heat insulation performance was less in the freeze-thaw test condition, but the rapid performance degradation was caused by the release of the internal gas at the beginning of aging. In addition, the hard polyurethane foam insulation showed better initial insulation performance than other insulation materials, but the performance was found to be degraded somewhat under laboratory accelerated test conditions and freeze-thaw test conditions.

• Journal of Korea Water Resources Association
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• v.53 no.10
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• pp.917-928
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• 2020

The purpose of this study is to find the appropriate probability distribution representing the size distribution of suspended cohesive sediment. Based on goodness-of-fit test for a significance level of 5% using the Kolmogorov-Smirnov test, it is found that the floc size distributions measured in laboratory experiment and field study show different results. In the case of sample data collected from field experiments, the Gamma distribution is the best fitting form. In the case of laboratory experiment results, the sample data shows the positively-skewed distribution and the GEV distribution is the best fitted. The lognormal distribution, which is generally assumed to be a floc size distribution, is not suitable for both field and laboratory results. By using 3-parameter lognormal distribution, it is shown that similar size distribution with floc size distribution can be simulated.

• Journal of Engineering Education Research
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• v.10 no.3
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• pp.79-92
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• 2007

To enhance the excellence, effectiveness and economical efficiency in the learning process, we implement a hybrid educational system for engineering experiments where web-based virtual laboratory systems and distance education systems are properly integrated. In the first stage, we designed client/server distributed environment and developed web-based virtual laboratory systems for digital systems and electrical/electronic circuit experiments. The proposed virtual laboratory systems are composed of four important sessions and their management system: concept learning session, virtual experiment session, assessment session. With the aid of the management system every session is organically tied up together to achieve maximum learning efficiency. In the second stage, we have implemented efficient and cost-effective distant laboratory systems for practicing electric/electronic circuits, which can be used to eliminate the lack of reality occurred during virtual laboratory session. The use of simple and user-friendly design allows a large number of people to access our distant laboratory systems easily. Thus, self-guided advanced training is available even if a lot of expensive equipment will not be provided in the on-campus laboratories. The proposed virtual/distant laboratory systems can be used in stand-alone fashion, but to enhance learning efficiency we integrated them and developed a hybrid educational system for engineering experiments. Our hybrid education system provides the learners with interactive learning environment and a new approach for the delivery of engineering experiments.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.513-516
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• 2006

본 연구에서는 전자회로를 실험할 수 있는 회로이론 원격 실험실을 제작하였다. 가상 콘텐츠와 실제 회로를 직접 구현하여 실제회로 실험화면을 학습자에게 제공하여 비교학습하게 한다. 본 실험에서 DAQ카드를 이용하여 실제회로에 입력신호를 인가하고 PC카메라로 실시간 실험화면을 학습자에게 제공한다. 실험 학습자는 LabVIEW 웹 서버로 가상실험을 하고, 실험결과는 데이터베이스에 저장되어 관리자가 관리하게 된다.