• Journal of the Korean Society of Environmental Restoration Technology
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• v.14 no.1
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• pp.23-33
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• 2011

Habitats loss and fragmentation are major threats to biodiversity. There are various kinds of environmental assessment have been developed for various problems to solve. Yet, there are no well-developed methods for quantifying and predicting about biodiversity. To achieve a sustainable conservation for biodiversity, the structural diversity of forest must be assessed by proper indexes. This study aim to quantitatively assess the diversity of forest structure as habitats and results of the verification by bird survey for objective presentation of evidence. As a result of literature review, some indexes were selected as potential prediction tools for biodiversity; area of patch, area of core regions, shape of patch and average age of stand. The assessment results were estimated by monitoring of birds for accuracy verification and the results were almost in agreement with each others. But, 1 and 2 level of forests were showed ambiguous results. Certainly, this study was limited in some valuation indexes on landscape scale. Further studies should be considered that different environmental factors such as land use, disturbances by human and vegetation index. Also, we expect that the additional monitoring of birds should give rise to the result which is improved assessment results.

• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.267-270
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• 2009

최근 우리나라는 기후온난화 등으로 인해 봄철과 겨울철에 심각한 가뭄이 자주 발생하고 있으며 그 정도는 점차 심해지고 있다. 2001년과 2002년 사이에 발생한 가뭄으로 약 100여개 시군에서 제한급수가 시행되기도 하였으며 2008년 말부터 발생하고 있는 남부지방의 가뭄은 식수를 걱정해야 할 정도로 심각한 실정이다. 이러한 기후변화는 수돗물의 안정적인 공급을 위한 수자원확보를 어렵게 하고 있다. 특히 하천수를 취수원으로 하고 있는 지방상수도의 경우 수돗물의 안정적인 공급과 수질측면에서 가뭄에 매우 취약한 조건을 가지고 있다. 따라서 이러한 가뭄에 대처하고 안정적인 물 공급을 제공할 수 있는 광역상수도의 역할이 중요해 지고 있다. 광역상수도는 여름철 홍수기에 가두어 놓은 댐의 물을 사용함으로써 안정적으로 물을 제공할 수 있다. 광역상수도는 가뭄시 안정적인 수돗물을 공급할 수 있을 뿐만 아니라 지역간의 요금편차를 제거하여 수도요금의 지역간 형평성을 고려할 수 있다. 또한 광역상수도를 사용하는 지방자치단체의 경우, 지방상수원 보호구역의 해제로 인해 지역개발을 활성화 시킬 수 있으며 국가차원에서도 물관리의 효율성을 증대시킬 수 있다. 본 연구는 이러한 광역상수도의 사회적 편익을 조건부 가치측정법(CVM)을 이용하여 추정하였다. 조건부가치측정법은 비사장 재화에 대한 가치를 추정할 수 있는 통계적 방법이다. 추정결과 안정적인 물공급을 위한 광역상수도의 가치는 음의 효용을 허용하지 않았을 경우, 가구당 5,796원의 지불의사금액으로 추정되었다. 이러한 결과는 광역상수도의 투자계획시 정책자료로 사용될 수 있으며 물정책 당국자에게 물관리측면에서 유용한 자료로 사용될 수 있다.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.59 no.1
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• pp.192-196
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• 2010

Due to a development of a modem technology as Power Line Communication(PLC) over 200 Mbps, the high-speed multi-media data trasmission could be currently possible. The strength of the PLC has no more additional wiring work. PLC has also possible to high quality data transmission with currently electrical cable. It has a various strong point campare with existing wire and wireless communication technologies. In This paper we develop a high quality media transmitter-receiver based on merging the HomePlug AV, which is 200 Mbps class PLC technology and HDMI Interface technology. The video function was used for the VEDEO TEST GENERATOR in order to a property valuation. Smart Live 6 software were used for the assessment of audio property. As the result of measurement of the HD class images by capturing from the receiver of the PLC, the quality of images couldn't be confirm any deterioration, which has compared with original reflections. In case of audio part as the result of confirmation of the Phase, Magnitude, it has been confirmed that over 90% of nomal transmition and receiving of acoustic signal. It can be possible to have HD class Media service through the PLC.

• Journal of Ecology and Environment
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• v.36 no.1
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• pp.1-9
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• 2013

In South Korea, the conflict between development and conservation policy still exist among government ministries, and conventional development plan often has priority over conservation policy. Establishment of sustainable development and comprehensive management policy employing the results of ecosystem service studies are highly warranted, but researchers in South Korea are still limited and often misuse the concept of ecosystem services. Thus, we aimed to introduce the concept of Ecosystem Service (ES) and related terminologies such as Social-Ecological Systems (SESs), ecosystem function, trade-off, and human well-being in this paper. Additionally, this article reviewed and arranged key approaches in ES studies as follows: 1) field works, 2) mapping ecosystem services, 3) valuing ES, 4) quantifying trade-offs between ES and 5) understanding SESs. Based on those results, we suggest that field works for basic information have the first priority to be conducted among ES studies. Once basic information is sufficiently accumulated, researchers can perform applied ES research with accuracy. Finally, results of ES studies conducted by five approaches allow decision makers to consider both natural system and society simultaneously, and hence the results can be utilized for sustainable development and conservation policy based on ecosystem-based management.

• The Journal of Information Technology
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• v.7 no.4
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• pp.47-60
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• 2004

The main purpose of the present study are as follows: First, through the extensive literature review, we tried to find out environmental changes in the management thoughts. Second, as we found a new paradigm on valuation-oriented management thoughts, we argued that cost/management accounting information should play key roles in creating values. Third, we pointed out that when firms used only financial performance measurements, problems could take places. Finally, especially to promote the organizational effectiveness and efficiency, we stressed that firms should use the balanced scorecard approach in performance measurements of its own organizations and personnels.

• Knowledge Management Research
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• v.9 no.3
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• pp.77-105
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• 2008

This study primarily aims at identifying what factors significantly affect the diffusion of knowledge management systems(KMS) and finding out how these identified factors can be effectively managed, especially for Korean companies. The research model is derived based on previous researches on innovation diffusion, information systems implementation, and KMS. The model is used to examine the role of determinants in influencing the extent to which KMS is diffused within organizations. Independent variables of this research are composed of technical characteristics, organizational characteristics and environmental characteristics. 'Breadth of diffusion' and 'depth of diffusion' concept are used to measure the extent of KMS diffusion which is the dependent variable of this model. The 101 companies of total 1,000 samples responded to the survey. To analyze tile results of this empirical study, we performed the multiple regression analysis. As a result, it was shown that the relative advantage, complexity, information system maturity, size, top management support, champion, competitive pressure have influences on both the breadth and the depth diffusions. On the other hand, the organizational culture, valuation and compensation, and uncertainty of environmental factors were not verified to be significant. This empirical study will provide Korean companies with insights into effective ways to diffuse the KMS and succeed in business competition.

• Journal of Acupuncture Research
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• v.20 no.4
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• pp.220-229
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• 2003

Objective : Cervical myelopathy is one of the most severe disease, as well as a common diesaes. However, its clinical study and report about efficiency of oriental treatment are absolutely insufficient. Therefore, we report the treatment about 1 case of Cervical myelopathy like followings. Methods : From November 27th, 2002 to January 11th, 2003, we observed patient hospitalized because of cervical myelopathy, and for its valuation, JOA score(Japanese Orthopedic Association score), Nutric grading, VAS(visual analog scale), and D.I.T.I(Digital Infrared Thermal Imaging)were used. Results : After being hospotalized for 50 days, the patients' JOA score, Nuric grading system, and VAS were improved each from 7 to 13, from grade IV to grade II, and from 8 to 2. Conclusions : We considered that oriental treatment has an useful effect on cervical myelopathy patients' treatment and recovery. But continuous studies, such as comparative studies accompanied by more treatment case.

• Journal of Environmental Science International
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• v.15 no.11
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• pp.1003-1010
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• 2006

It is very difficult to forecast accurately a damage from the natural disasters which occurs frequently. If the significant weather event was forecasted one or two days ago, we will be able to minimize a damage from the severe weather event through the suitable prevention activities. It said that 2000's our country's total damages from the meteorological disasters was several trillion won(Park et al, a, b, 2005). Therefore, we analyzed the Korea Meteorological Administration(KMA) and television broadcasting's reports, information contents, and transmission system, an ex post facto valuation about typhoon Nabi which struck the Korean peninsula from September 5 to 7, 2005. Through these investigations, we want to present the basic data to rises the application effect of disaster prevention meteorological information. We think KMA must present many information report to promote a citizen's understanding about the meteorological information and the serious disaster situation. And also we think the KMA and television broadcasting must present an advisable reports, the contents which is suitable to disaster response stages. And we must grasp the problem of disaster prevention meteorological information through an ex post facto examination, improve it effectively.

• Journal of the Korea Convergence Society
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• v.6 no.6
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• pp.111-117
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• 2015

Digital content industry is expected to grow due to the development of new devices and technologies, convergence between genres and technologies. However, Financial support system for the field of digital content has not been activated due to the digital content industry has the characteristics of a lot of initial investment costs and an uncertain profitability. This paper deals with the financial plan of activation of digital content businesses using technology evaluation. For this purpose, first, examine status of digital content businesses(status and sales financing, etc). Second, discuss development methods of digital contents finance based on the analysis of the digital content industry. This study is useful for deriving the development methods of digital contents finance using the technology valuation.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.21 no.10
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• pp.537-544
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• 2009

On account of the technological development, intelligent building is on increasing where the artificial regulation on indoor environment is possible, thence the concern about those facilities such as water-supply facility, water-heater and drainage facility has becomes higher. However, due to diversification and complicated system of the facility-equipments, the noise generating from such facility equipment is gradually becoming a problem, and since especially equipment noises arising at the machine room frequently infringe into the resident's pleasant living environment with the complex types of an air-borne sound and a structure-borne sound, it is becoming the civil complaint. On such viewpoint, this Study ever observed the characteristics of noise generating from various facility-equipments in the building, and intended to evaluate the facility-noises by use of the valuation index such as PSIL, N, NC, NR. As result of, the facilities noise which happens in the machine room makes normal conversation very difficult due to high sound pressure level. Based on such data, this study is willing to present it as an essential material for establishment an efficient measure against the facility-noises arising at machine room hereafter.