• 한국환경복원기술학회지
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• 제22권1호
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• pp.1-11
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• 2019

This study suggested that various stakeholder can be participated in regional Environment planning and practical use of policy with rapid assessment of Ecosystem Services(ES). We applied to the rapid assessment of ES method to Ansan city and local registers selected Ecosystem assets that considered to space of ES. Ecosystem assets were measured 5 types Likert scale about 37 indicators of ES and confirm the main ES through the basic statistics. Furthermore Ecosystem assets classified according to similar character of ES. Ecosystem assets of Ansan were selected 47 site and Local climate regulation, Research and education, Primary production was high among the ES indicators. As a result two main group deduced that ecological education group(such as Research and education, Habitat) and safety regulation group(such as Air regulation, Fire regulation) through the factor analysis. In terms of location characteristics of each group, the ecological education-centered ecosystem assets were located near the downtown area, while the safety regulation group was located at the outskirts, such as mountains and coasts. This indicates that the ecological education about the habitat provision can be achieved in Ansan city downtown area and that outskirts should be approached from the aspect of ecological function to establish a plan. The result of Rapid assessment of ES, which can be lead a balanced and developmental consultation when establishing polices for environment planning and management in region.

• 정보처리학회논문지A
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• 제16A권3호
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• pp.159-168
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• 2009

본 논문에서는 데스크탑과 같이 OpenGL 기능이 전용 하드웨어로 제공되는 환경을 대상으로, OpenGL ES 1.1 표준을 효율적으로 구현하는 방법을 제시한다. OpenGL ES는 기존의 OpenGL 표준을 바탕으로 하였지만, 고정소수점 연산, 이를 수용하는 버퍼 기능, 완전히 새로운 텍스처 처리 등의 도입으로, 임베디드 시스템에 특화된 3차원 그래픽스 라이브러리로 새롭게 제정되어, 구글 안드로이드, 애플 아이폰, 플레이스테이션3 등에서 공식 3차원 그래픽스 API로 채택되었다. 본 논문에서는 OpenGL ES의 특징적 자료형인 고정소수점 표현에 대한 산술 연산들을 개선하였고, 특히 고정소수점 자료형들을 부동소수점 형태로 변환하여 하위의 OpenGL API로 넘기는 과정에서 표준을 준수하면서도 효율적인 처리가 가능하도록 하였다. 새로 도입된 고정소수점 자료형을 허용하는 버퍼 기능에 대해서는 변환된 자료들을 별도의 메모리 공간에서 관리하는 방식으로 속도 향상에 중점을 두었으며, 요구 사항이 완전히 달라진 텍스처 처리 부분은 전체 기능을 별도의 소프트웨어로 완전히 새롭게 구현하였다. 최종 구현 결과인 OpenGL ES 라이브러리는 OpenGL ES 1.1 표준에 규정된 총 200여 함수를 제공하며, 표준인증 테스트를 완전히 통과하여 1.1 표준을 완벽히 만족시켰음을 보였다. 수행 속도 면에서는 OpenGL ES에 특화된 응용 프로그램들에 대한 처리 속도 측정에서 기존의 구현 사례들에 비해 최대 33.147배의 속도 향상을 가져왔으며, 동일한 범주의 구현 사례들 중에서 가장 빠른 구현 결과이다.

• Current Applied Physics
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• 제18권12호
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• pp.1492-1495
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• 2018

This paper studies the influence of temperature on electrical resistivity in ${\alpha}-InAs$ thin films between 30 K-2K based on the analysis of Mott VRH model and ES VRH model. The effect of the interactions between electrons at lower temperature must be considered, therefore, ES VRH conduction will dominate mechanism, and the crossover from Mott to ES VRH conduction is observed about 7 K. Based on available experiment data and VRH conduction model, the parameters of VRH conduction are determined. And the calculated values of $T_C$ are consistent with the experimental results. In addition, $R_M/{\xi}$, ${\Delta}_M/kT$, $R_{ES}/{\xi}$ and ${\Delta}_{ES}/kT$ are satisfied with the validity of Mott and ES models. Furthermore, the temperature dependence of resistivity at low temperature obeys a universal scaling law, which well describes the overall temperature range of VRH conduction. However, the values of $T^{\prime}_M$ from the universal function are two order of magnitudes lower than $T_M$ deduced from fitting experiment.

• 한국군사과학기술학회지
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• 제20권2호
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• pp.197-205
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• 2017

During the sea trial, we discovered EMI between MOSCOS and ES DF antenna. CW emitted by MOSCOS raised the threshold level of ES DF antenna. As a result, direction finding rate of ES has been decreased. This is a study for the improvement of EMI between the antennas mounted on a surface ship. An analysis is accomplished for MOSCOS, ES DF antenna and Jamming transmitter. This paper presents the method how to solve EMI based on the measurements and calculations about the ES DF antenna receiving level, MOSCOS radiation pattern and Jamming transmitter thermal noise. The test was performed with optimal deployment of MOSCOS on a surface ship. After changing the position of MOSCOS, EMI has been decreased significantly.

• 미생물학회지
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• 제38권3호
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• pp.162-167
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• 2002

항진균 활성 관련 단백질을 찾기 위해 미역류로부터 Streptomyces sp. SAR01을 분리하고, FAME (fatty acid methyl ester)분석으로 동정하였다. 감마선(sup $({60}^Co)$)조사를 이용하여 항진균 활성 결핍 돌연변이체(SAR535)를 유도한 후, 이차원전기영동으로 단백질을 분석한 결과 SAR01에만 존재하는 6종의 단백질을 확인할 수 있었다. 이중 10 kDa chaperonin cpn10 (GroES)과 96%의 상동성을 가진 10 kDa의 단백질을 클로닝하였으며, E. coli Ml5에서 과대 발현됨을 확인하였다. 또한 SAR535에 형질전환시킨 결과 SAR01과 유사한 항진균 활성이 나타났다. 이것으로 볼 때 groES는 Streptomyces sp. SAR01의 항진균 활성에 관련된 것으로 사료된다.

• 한국콘텐츠학회논문지
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• 제9권12호
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• pp.691-698
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• 2009

본 연구의 목적은 현수 기간 중 적용한 신경근 전기자극의 사전 적용이 흰쥐 뒷다리 근육의 무게와 후지 기능에 미치는 효과를 알아보는데 있다. 이를 위해서 25마리의 Sprague-Dawley계 흰쥐를 14일 동안 현수한 HLS군(n=5)과 14일 동안 자유롭게 사육한 WB군(n=5), 현수 기간 중 14일간 사전 전기자극을 실시한 ES14군(n=5), 현수 기간 중 11일간 사전 전기자극한 ES11군(n=5), 현수 기간 중 7일간 사전 전기자극한 ES7군(n=5)에 무작위 배치하여 실험을 진행하였다. 실험결과, HLS군과 ES7군에서 비복근의 근무게, 후지 활보장의 유의한 감소와 외향각의 유의한 증가가 관찰되었고, ES14군과 ES11군에서 비복근의 근무게와 후지 활보장, 외향각이 유의하게 유지되었음을 관찰하였다. 즉, 14일 및 11일의 사전 신경근 전기자극이 근위축 지연과 근기능 보존에 효과적임을 보여주고 있다. 이러한 결과는 근위축 예방 및 기능 유지를 위해서는 신경근 전기자극을 가능한 조기 적용해야함을 알려주고 있다.

• 한국가축번식학회지
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• 제26권4호
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• pp.377-384
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• 2002

To investigate the expression patterns of proteins and growth factor signals in differentiated rabbit embryonic stem (ES) cells, ES cells with confluent stage grown of feeder layer and differentiated cells into embryoid bodies (EB) without feeder cell were applied to protein gel and Western blotting analysis. There were 66kDa and 28kDa specifically expressed in differentiated ES cell but not in undifferentiated ES cell while 25kDa protein band showed up in only undifferentiated ES cells. Also there were some difference of protein bands in several area of gel between differentiated and undifferentiated ES cells such as about 100 kDa, 50kDa and 27kDa areas, but there was no difference in band pattern of one-dimensional gel analysis between mouse ES cells and rabbit ES cells. IGF-I receptor and EGF receptor were expressed in differentiated cells and undifferentiated cells. And ICF-I and EGF were not expressed in both differentiated and undifferentiated cells. These results indicated that ES cells express their own proteins to inhibit differentiation while EB cells synthesize different proteins to differentiate, and 16F-I receptor and EGF receptor were expressed in both ES and EB cells probably for the different functions.

• 한국환경복원기술학회지
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• 제26권6호
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• pp.97-115
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• 2023

Ecosystem services (ES) are the benefits that people obtain from ecosystems. Traditional ES assessment methods have focused on the supply of ES, using biophysical data. However, these methods often fail to capture the full value of ES, which is also determined by social and cultural factors. This study proposes a new approach to ES assessment that incorporates socio-cultural perspectives. The study was conducted in Seoul, South Korea. A survey was conducted of 1,805 residents of Seoul to assess their satisfaction with ecosystem services. Exploratory factor analysis was used to identify bundles of ES that were perceived as important by residents. A revised importance-satisfaction analysis was used to calculate the urgency level of each bundle. The results of the study showed that the 21 ES that were considered in the survey could be grouped into three bundles: urban green area-based, biodiversity-based, and resilience-based. The urgency level analysis showed that some bundles were more important than others, and that some bundles were more urgent than others. The findings of this study have several implications. First, they suggest that a socio-cultural approach to ES assessment can provide a more comprehensive and accurate assessment of ES. Second, they show that this approach can be used to identify areas where ES management is most needed. Third, they suggest that this approach could be used to inform ES management and policy decisions.

• 한국산업보건학회지
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• 제6권1호
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• pp.144-155
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• 1996

During the 1990s the workplace has grown more complex and business competition has increased world-wide. All organizations, whether for-profit or non-profit have been forced to respond to market changes. More advanced information and technology, greater product diversity, shorter product life cycles, increased quality requirements, more regulation oversight, decreasing productivity, more competitors, and increasing overhead costs have motivated organizations to focus on ways to deliver products cheaper, better, and faster. Many organizations are searching for ways to reduce costs through downsizing, reengineering business processes, implementing quality management, outsourcing, and improving cost management. Support departments that provide services internal to an organization such as human resources, legal, and environmental, safety, and health (ES&H) are often the first organization targeted for cost reduction and cost control initiatives because these functions are part of a rapidly increasing overhead cost. Recently, ES&H functions are incresingly being integrated into the business of business to contribute value to organization beyond mere compliance with ES&H regulations. The discussions and development of the ISO compatible Environmental Management Standards or Occupational Safety and Health Management Standards is another impetus to integrate ES&H function into the business of business. Thus, ES&H professional need new skills to analyze the cost of their function and communicate the value of the products and services they provide. In recent years, the need for and the importance developing cost management and business skills by ES&H professionals have been emphasized in the literature. Communicating with decision makers in terms of cost and value to the organization, and by using business language and business arguments is the first step toward effectively integrating ES&H activities into the business of business. Activity-based costing (ABC) is a cost management method that measures the cost of a product or service based on the actual use of resources by activities, and based on the actual amount of activities used to produce a product or service. ABC is recommended as a tool for managers of ES&H organizations to determine the cost of developing and providing ES&H products within a for-profit firm or non-profit agency. This paper discusses the trend of integration of ES&H functions into the mainstream of business activities within an organization. The general principles of treditional cost accounting are presented as a bases for understandging why and how ABC will provide more accurate estimates of cost. The principles and concepts of ABS are presented as a tool for determining more accurately the true cost of ES&H products and services.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1991년도 하계학술대회 논문집
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• pp.337-340
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• 1991

The most difficult, time-consuming, and expensive task in building an ES (Expert System) is constructing and debugging its knowledge base. Our goals are to eliminate the knowledge-acquisition bottle-neck for ES creation in data rich situations and to make an ANN (Artificial Neural Network) model behave as much as possible like an ES. The ANN ES has many benifits: Once it has been learned, inference time is very short. It can provide a reasonable conclusion for insufficient input data. But it has also several demerits : Learning time is too long to converge. We cannot guarantee the convergence of its weights. We introduce an ANN ES model which makes most of its benefits and compensates its shortcomings.