• Economic and Environmental Geology
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• v.28 no.1
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• pp.79-88
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• 1995

The gravity measurment has been carried out at 48 gravity stations with intervals of 1.0~1.5 km along the survey line between Samcheog, Gosari and Taebaek to study subsurface geology and geologic structure in the northeastern part of the Ockchon zone. The Bouguer gravity anomaly values were obtained from the measured gravity values through the gravity corrections. The subsurface geology and geologic structure were interpreted quantitatively by means of the Fourier series method and Talwani method for 2.5 dimensional body. In the study area, the depth of Conrad discontinuity is about 10 km at Samcheog, northeastern end of the survey line, and it is increased rapidly to about 12.5 km at Miro, 15 km at Gosari and 15.5 km at Dongjeom, southwestern end of the survey line, respectively. The depth of the basement of the Ockchon zone exposed at Samcheog is increased smoothly to about 2 km at 5 km from Samcheog along the survey line, and is exposed again in the area between Singiry and Gosari. Beyond Gosari its depth is increased to about 1.7 km, and displaced 2.3 km downward by Osipcheon fault near Dogyeri and 0.5 km by Baeksan thrust near Cheolam, respectively. Many V-shaped low Bouguer gravity anomalies resulted from the fracture zone associated with faults imply the existence of Osipcheon fault and several inferred faults. The low Bouguer gravity anomaly zone between Tongdong and Dongjeom is caused by Jurassic gneissose granite. A local high Bouguer gravity anomaly at 35 km along the survey line from Samcheog is interpreted by the effect of iron deposit of high density existed at subsurface. The thickness of Great Limestone Group varies from 0.5 km to 1.4 km, that of Pyeongan Supergroup from 0.4 km to 0.9 km, and that of Yangdeog Group is about 0.3 km. The thickness of Jurassic gneissose granite varies from 1.5 to 3.0 km.

• Horticultural Science & Technology
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• v.16 no.4
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• pp.511-513
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• 1998

Tomato fruits(Lycopersicon esculentum $M_{ILL}$.) picked at mature (from mature green to breaker) and ripe (from pink to red) stage were packed into two layers in corrugated fiberbox and transported 200km and 400km from the harvested site. Loss (abrasion + cracking) in marketability was lowest (11.0%) from mature + 200km transport, followed by mature + 400km transport(13.5%), ripe + 200km transport(28.5%), and ripe + 400km transport (45.5%). When data were pooled by fruit maturity, firmness of mature fruit was 1.55 times higher than ripe fruit. However, vitamin C content was 1.25 times higher in ripe fruit than in mature fruit. Fruit transported longer distance and packed in bottom layer within a box exhibited lower firmness and vitamin C content in both maturity. It was concluded that it is desirable to transport relatively shorter distance for ripe tomato and longer distance for less ripe fruit.

• Journal of Information Science Theory and Practice
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• v.3 no.4
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• pp.49-61
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• 2015

Knowledge Management (KM) has become a fundamental process for all types of institutions in society. Academic libraries are also an integral part of the knowledge system, these institutions being one of the forms that contribute to knowledge development. This study aims to find out the challenges and opportunities associated with KM practices in Dhaka University Library (DUL). The specific objectives were to ascertain the understanding of KM concepts among library professionals of DUL, to explore an overview of KM and its role, and to identify the rationale behind not practicing KM properly at DUL. Appropriate methods were employed. The findings indicate that limited expertise and lack of clear guidelines are the major challenges for the implementation of KM in DUL.

• Journal of Information Science Theory and Practice
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• v.6 no.1
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• pp.6-17
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• 2018

This paper confers about the implementation of Knowledge Management (KM) in the National Library of Bangladesh (NLB). The main aim of this study was to investigate how the NLB goes about creating, implementing, disseminating, and applying knowledge within the organization. The other objectives of this paper were to identify the current status of KM in NLB and the understanding of different facets of KM by the staff of the National Library. The paper revealed that the situation of KM in NLB is not satisfactory. The paper also described the fact that the working environment supports the implementation but there needs to be some changes in the policies. Finally the research disclosed that NLB is a great place for implementing KM and has a large amount of possibilities for the adoption of KM. This qualitative research used the questionnaire as the main instrument for data collection. Finally, data has been processed and analyzed using SPSS and MS Excel.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2001.05a
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• pp.31-36
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• 2001

KMS에서 지식전달 및 지식공유를 위한 커뮤니케이션 도구는 필수적인 요소지만 현재 국내 KMS에서 채택하고 있는 비실시간, 혹은 문자 중심의 커뮤니케이션 도구로는 지식전달 및 공유를 위한 조직원간의 커뮤니케이션 활성화가 불가능하다. 본 연구에서는 KMS의 커뮤니케이션 활성화를 위한 실시간 멀티미디어 인스턴트 메신저의 역할을 제시하였다. 제시된 KMS용 실시간 멀티미디어 시스템은 화상/음성통신, 문자/그래픽통신, 화이트보드통신, 화면공유, 그리고 에스코티드 브라우징과 같은 다양한 커뮤니케이션 방법을 제공하기 때문에 조직원간의 지식공유/전달, 공동작업, 그리고 사용자 편리성 및 접근성을 제공할 수 있을 것이다. KMS에서 지식전달 및 지식공유를 위한 커뮤니케이션 도구는 필수적인 요소지만 현재 국내 KMS에서 채택하고 있는 비실시간, 혹은 문자 중심의 커뮤니케이션 도구로는 지식전달 및 공유를 위한 조직원간의 커뮤니케이션 활성화가 불가능하다. 본 연구에서는 KMS의 커뮤니케이션 활성화를 위한 실시간 멀티미디어 인스턴트 메신저의 역할을 제시하였다. 제시된 KMS용 실시간 멀티미디어 시스템은 화상/음성통신, 문자/그래픽통신, 화이트보드통신, 화면공유, 그리고 에스코티드 브라우징과 같은 다양한 커뮤니케이션 방법을 제공하기 때문에 조직원간의 지식공유/전달, 공동작업, 그리고 사용자 편리성 및 접근성을 제공할 수 있을 것이다.

• Journal of Advanced Navigation Technology
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• v.24 no.2
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• pp.61-66
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• 2020

Since the ocean accounts for 70.8 percent of the earth's surface, the success of IoT technology in the marine industry is to collect information from devices placed in a wider range. LPWA is a feature with a wide range of communication and is very suitable for deployment in the ocean. In this paper, the real-sea performance distance experiment was carried out based on Private LoRa, a key technology for executing the electronic phrase real-name system. A private LoRa module based on sx1276 was developed, and Gateway was developed to transfer data received by private LoRa to the server using SKT Cat. M1. After installing gateways at 599 meters above sea level and experimenting with data transmission and reception at 25 km, 40 km and 60 km, we were able to see that the communication success rate was obtained to be 96.1%. 97.1% and 96.2% respectively.

• Journal of radiological science and technology
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• v.10 no.1
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• pp.43-47
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• 1987

Authors have tested on the characteristics, image qualities and clinical applications of Konica Hi-ortho X-ray film MGH. The results are as followed; 1. The speeds of KM/MG, MGH were as about 2.7 times, and those of KR/MG, MGH were as about 4.5 times as compared with LT-II/A and the tube voltage influenced upon KM/MG, MGH over 80 kVp, upon KR/MG, MGH over 90kVp. 2. Good image definition by the detection of Burger Phanton KM/MGH, KM/MG, and LT-II/A, and good I.Q. values by the detection of Hawlet Chart LT-II/A, KM/MGH, and KM/MG in that order. Therefore, MGH film could reduce the patient dose steeply, and furthermore, provide high image quality by the high contrast and then, it will be very useful to abdominal angiography and cerebral angiography.

• Korean Journal of Environment and Ecology
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• v.28 no.6
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• pp.650-656
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• 2014

This study was executed in Woraksan National Park from Febuary, 2008 to December, 2013 in order to study the behavioral characteristics of introduced four female gorals using annual home range, seasonal home range, and elevation use characteristics. Annual home range of reintroduced female gorals were $1.13{\pm}0.32km^2$ of MCP 95%, $0.37{\pm}0.18km^2$ of MCP 95% and $0.07{\pm}0.03km^2$(t=0.607, p>0.05) of FK 50% respectively. In seasonal home range and elevation use characteristics of MCP 95%, autumn($0.73{\pm}0.26km^2$) and summer($0.77{\pm}0.06km^2$) were the largest home range and spring($0.58{\pm}0.38km^2$) and winter($0.47{\pm}0.25km^2$) had a smaller home range and it showed that there was a difference between summer and winter home ranges(F=3.868, P<0.05). As a result of seasonal elevation analysis, elevation use was 435m(28.4%) in spring, 464m(26.7%) in summer, 414m(28.8%) in autumn, and 393m(21.2%) in winter, respectively. It showed that these gorals used higher elevation in summer(F=0.783, P>0.05). We could not analyze the characteristics of introduced gorals, because only introduced female gorals were used for this study. However, we could understand that habitat use characteristics were of statistical significance in introduced gorals from the analyses of their home range, seasonal home range and elevation use.

• Journal of Korea Ship Safrty Technology Authority
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• v.14
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• pp.9-18
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• 2004

우리나라는 3면이 바다로 둘러 싸여 있어 국토 면적 99.5km의 4.4배에 달하는 440km의 넒은 관할 해역을 가지고 있다. 우리는 이 해역에서 우리나라 수산업의 근간을 이루는 연근해 어업으로 연간 약 120만톤, 양식어업으로 약 65만 톤의 수산물을 생산하고 있다.<중략>

• Journal of Korean Society for Atmospheric Environment
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• v.15 no.E
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• pp.55-64
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• 1999

The CIT(California Institute of Technology) three-dimensional Eulerian photochemical model was applied to the Greater Seoul Area, Korea for July 24, 1994, a day of the 9-day ozone episode to understand the characteristics of photochemical air pollution problems in the area. The modeling domain was 60km$\times$60km with the girl size of 2km$\times$2km. As the base case emissions, air pollutant emission data of the National Institute of Environmental Research, Korea for the year of 1991 were used with modifications based on EKMA(Empirical Kinetic Modeling Approach) resutls. Comparisons between predicted and observed concentrations showed that the model predicted the peak concentration over the domain reasonably. It was found that the location of the peak ozone concentration was mainly decided by metorological conditions. But the model could not resolve the spatial variations of concentration station by station, which was mainly caused by localized variations in emission and meteorology.