• Nuclear Engineering and Technology
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• 제41권8호
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• pp.1101-1108
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• 2009

The ocean contains around eighty elements of the periodic table and uranium is also one among them, with a uniform concentration of 3.3 ppb and a relative abundance factor of 23. With a large coastline, India has a large stake in exploiting the 4 billion tonnes of uranium locked in seawater. The development of radiation grafting techniques, which are useful in incorporating the required functional groups, has led to more efficient adsorbent preparations in various geometrical configurations. Separation based on a polymeric adsorbent is becoming an increasingly popular technique for the extraction of trace heavy metals from seawater. Radiation grafting has provided definite advantages over chemical grafting. Studies related to thermally bonded non woven porous polypropylene fiber sheet substrate characterization and parameters to incorporate specific groups such as acrylonitrile (AN) into polymer back bones have been investigated. The grafted polyacrylonitrile chains were chemically modified to convert acrylonitrile group into an amidoxime group, a chelating group responsible for heavy metal uptake from seawater/brine. The present work has been undertaken to concentrate heavy metal ions from lean solutions from constant potential sources only. A scheme was designed and developed for investigation of the recovery of heavy metal ions such as uranium and vanadium from seawater.

• 영어어문교육
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• 제15권3호
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• pp.33-57
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• 2009

Taking the issues of inequity and power between NES and NNES teachers as a starting point, this qualitative study explores the way the widespread belief of the native speaker fallacy manifests itself in one NNES teacher's teaching life and is linked to the teacher's understanding of herself as an English teacher. Guided by critical applied linguistics (Pennycook, 2001) and using Bourdieu's (1991) theorization of symbolic violence, I conducted an instrumental case study (Stake, 1995) in an ESL writing class at a US university. I collected data through classroom observations and interviews over a nine-month period and analyzed the data using the constant comparison method (Glaser and Strauss, 1967). The findings illustrate the ways the dominant ideology of the native speaker fallacy works to maintain and reproduce the status quo unequal relation between NES and NNES teachers by making all parties involved believe in the artificial sociocultural arrangements that favor NES teachers as legitimate. The findings direct our attention to the importance of critical teacher education that will enable future TESOL professionals to engage in critical reflection on diverse issues and envision transformative change. The findings, in particular, point to the need for language support for NNES teachers in TESOL teacher education.

• 환경정책연구
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• 제12권2호
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• pp.3-16
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• 2013

보편 일률적으로 적용가능한 생태계서비스 정의 및 분류체계는 이상적이기는 하나 현실, 특히 의사결정지원에는 한계가 있다. 본 소고는 생태계서비스 개념과 분류체계의 발전과정 검토를 통하여 문헌상의 용어를 비교 분석하고 최근 연구동향을 반영하여 생태계서비스와 편익의 개념을 재정립하였다. 또한 '정책목표에 기반을 둔 복수의 생태계서비스 정의와 분류체계가 필요하다'는 전제하에 환경계정, 환경가치추정, 자연자원관리와 같은 특정 정책목표에 따라 생태계서비스의 정의와 범위를 차별화하여 제시하였다. 특히 의사결정지원을 위해서는 정책목표 달성을 위한 최종생산물의 확인, 목록화, 역방향 경로분석(편익-서비스-기능-구조/과정)의 필요성을 제시하고 그 유용성을 예시하였다.

• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2002년도 추계공동학술대회 정보환경 변화에 따른 신정보기술 패러다임
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• pp.417-422
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• 2002

네트워크와 인터넷의 급격한 성장과 함께 기존의 많은 소프트웨어들이 웹 기반으로 그 모습을 변화하고 있으며, 이로 인해 웹 어플리케이션의 복잡성이 증가되고 개발에 있어 많은 비용과 인력이 소요되고 있다. 하지만 아직까지 웹 어플리케이션을 위한 명확한 개발 환경이 정의되지 않았으며 대부분이 경험에 입각하여 나름대로 개발하고 있는 실정이다. 따라서 웹의 특성을 잘 반영하는 개발 환경의 구축이 무엇보다 중요시된다. 본 논문에서는 웹 환경의 특성을 파악하여 웹 어플리케이션 개발에 적합한 프로세스를 정의하고 이에 따라 모델링 할 수 있는 환경을 제시한다 또한 모델링 결과를 바탕으로 자동으로 소스코드를 생성한다. 결국 분석과 설계 단계에서 발생되는 결함을 줄여 품질을 향상하고, 개발하는데 드는 시간을 줄여 생산성을 향상함으로써 빠르게 변화하는 웹 환경에 능동적으로 대처하고자 한다.

• 사상체질의학회지
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• 제23권1호
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• pp.1-7
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• 2011

Reforming the insurance scheme for herbal drugs in the National Health Insurance is a long-cherished desire for Korean Medicine doctors. Because most Korean Medicine doctors distrust the quality of existing insured herbal drugs, which are powdered mixes of each herbal extract, the use and the expenditure of insured herbal drugs have been decreased in the last ten years. To address this, it has been demanded to insure the composite type of herbal preparation, which is the extracted powder of the whole prescription, to the benefit coverage for herbal drugs. Many stake holders, however, have so far been unable to reach an agreement on this. In this situation, Sasang Constitutional prescriptions are expected to make a breach of insuring the composite herbal preparations, because some of them were approved as prescription drugs in 1999. In this review, I discussed the problems of insured herbal drugs, the necessity of insuring the composite herbal preparations and Sasang Constitutional prescriptions, and the tasks of Sasang Constitutional Society to insure them.

• Journal of Ecology and Environment
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• 제38권2호
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• pp.249-256
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• 2015

Islands are often habitats to unique species because they have different environmental conditions from the mainland and other islands. Another characteristic of islands is their limited natural resources, which has led island residents to heavily rely on traditional ecological knowledge (TEK) and use resources sustainably. The so-called "Maeul landscape" shows the interrelationship of biological species and people's use of natural resources. Shinan-gun is an administrative district located in the southwestern part of Korea that forms an archipelago with huge tidal flat areas. Since long ago, people's use of these tidal flats shows a high degree of biocultural diversity. Maeul landscapes also show humans' adaptation to the natural environment. For instance, strong winds blowing mainly from the northwest have led people in Shinan-gun to create "Ushil," a windbreak forest with stone blocks to block wind from their villages and agricultural fields. At present, the transfer of TEK to future generations is at stake due to socio-economic changes that cause island populations to shrink and age rapidly. Islands are often regarded as good destinations for tourism, but attention should also be given to sustainable development due to the environmental characteristics of islands. International organizations are making efforts to curb the threats of global environmental problems especially on small islands. Their activities are aimed at seeking solutions that stress the central role of biocultural diversity in establishing the sustainable use of natural resources on islands. Joint efforts oflocal people and government authorities to protect and conserve the Maeul landscape should be encouraged.

• Industrial Engineering and Management Systems
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• 제14권3호
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• pp.299-311
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• 2015

Nowadays, the distribution centres aim to reduce costs by reducing inventory and timely shipment. Cross docking is a logistics strategy in which products delivered to a distribution centre by inbound trucks are directly unloaded and transferred to outbound trucks with minimum warehouse storage. Moreover, on-time delivery in a distribution network becomes very crucial especially when several distribution centres and customers are involved. Therefore, an efficient truck scheduling is needed to synchronize the delivery throughout the network in order to satisfy all stake-holders. This paper presents a mathematical model of a mixed integer programming for door assignment and truck scheduling in a multiple inbound and outbound doors cross docking problem according to Just-In-Time concept. The objective is to find the schedule of transhipment operations to simultaneously minimize the total earliness and total tardiness of trucks. Then, a multi-objective differential evolution (MODE) is proposed with an encoding scheme and four decoding strategies, called ITSH, ITDD, OTSH and OTDD, to find a Pareto frontier for the multi-door cross docking problems. The performances of MODE are evaluated using 15 generated instances. The numerical experiments demonstrate that the proposed algorithm is capable of finding a set of diverse and high quality non-dominated solutions.

• 환경생물
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• 제25권4호
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• pp.297-302
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• 2007

태안연안 국립공원의 조간대에 서식하는 어종과 어류분포 특성을 알아보기 위해 2005년 3월부터 10월 사이에 족대와 뜰망을 이용하여 어류를 채집하였다. 연구기간 동안 모두 8목 15과 27종의 어류가 채집되었다. 모래로 이루어진 백사장의 조수웅덩이에서는 망둑어과의 날개망둑이 우점종이었고, 자갈이 깔린 바닥에는 미끈망둑이 주로 서식하였다. 바위와 암벽으로 이루어진 조수웅덩이에는 우베도라치를 포함한 베도라치류와 망둑어과의 별망둑, 점망둑이 우점하였다. 한편 채집된 어류 가운데 한국 고유종은 우베도라치와 참돛양태 2종이었으며, 2002년 태안군 소원면 모항리에서 채집되어 신종으로 보고된 바 있는 둑중개과의 고려실횟대는 금번 연구에서 채집되지 않았다. 이것은 주변에서 이루어진 모항항 공사가 이들의 서식처에 영향을 미쳤기 때문으로 판단된다.

• 의료법학
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• 제15권2호
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• pp.3-29
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• 2014

The Supreme Court made a decision that the doctor cannot be punished for not taking a blood transfusion to the patient, depending on the patient's will to refuse the blood transfusion on June 24, 2014. The reason is that, in a special situation of conflict between the right of patients to self-determination and the duty of care, and when it was impossible to compare whether which has the superior value, if the doctor made a medical practice to respect either of those two values according to the professional sense, he cannot be punished. In principle, the doctor should make medical practices according to the patient's will. However, if the patient's life was at stake, I think, the doctor is obliged to try his best to save the life of patient. Yet to entrust the patient's life to the doctors professional sense, is to give up the obligation of the country to protect lives. In this regard, I think that the Supreme Court Decision should be reviewed, and that an ongoing research is needed.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2002년도 추계공동학술대회
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• pp.417-422
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• 2002

네트워크와 인터넷의 급격한 성장과 함께 기존의 많은 소프트웨어들이 웹 기반으로 그 모습을 변화하고 있으며, 이로 인해 웹 어플리케이션의 복잡성이 증가되고 개발에 있어 많은 비용과 인력이 소요되고 있다. 하지만 아직까지 웹 어플리케이션을 위한 명확한 개발 환경이 정의되지 않았으며 대부분이 경험에 입각하여 나름대로 개발하고 있는 실정이다. 따라서 웹의 특성을 잘 반영하는 개발 환경의 구축이 무엇보다 중요시된다. 본 논문에서는 웹 환경의 특성을 파악하여 웹 어플리케이션 개발에 적합한 프로세스를 정의하고 이에 따라 모델링 할 수 있는 환경을 제시한다. 또한 모델링 결과를 바탕으로 자동으로 소스코드를 생성한다. 결국 분석과 설계 단계에서 발생되는 결함을 줄여 품질을 향상하고, 개발하는데 드는 시간을 줄여 생산성을 향상함으로써 빠르게 변화하는 웹 환경에 능동적으로 대처하고자 한다.