• 플랜트 저널
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• 제5권1호
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• pp.51-59
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• 2009

The global plant construction market has grown dramatically since 2000. As the market grows, domestic EPC contractors are expanding to meet its needs and have made great strides in terms of economic indicators from a decade ago. Larger projects involve a number of risk factors, such as volatile oil prices, however, and thus require quantitative and elaborate project management techniques for the ultimate success of a project's profitability. In addition, many Korean companies face difficulties in predicting potential risks and problems due to a lack of experience in dealing with the global market trend toward projects based on the Cost-re(Cost Reimbursable) contract as opposed to those based on the LSTK(Lumpsum Turnkey) contract. This study will examine methods and types of man-hour management according to plant project contract types. Further, it will explore the man-hour management system for successful completion of projects by satisfying the client's needs and enhancing the convenience in engineers' using the system. Additionally, this study will analyze the current system and identify its problems to address potential problems.

• 디지털융복합연구
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• 제12권3호
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• pp.141-147
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• 2014

확산모형은 시장의 예측이나 그 방법론의 연구를 위해 마케팅에서 광범위하게 다뤄졌을 뿐 아니라, 경제학에서도 다양하게 활용되어 왔다. 특히 Bass 모형은 Rogers의 혁신확산 및 수명주기이론을 간단한 수리적 모형으로 표현할 수 있기에 혁신적 신제품의 채택과 확산을 설명하는데 널리 활용되었다. 그럼에도 불구, 확산모형은 '산업의 쌀' 이라 일컬어지는 반도체의 수요예측에 일부 선도적 연구를 제외하고는 활용된 바 없다. 이에 Bass 모형에서 진일보한 비선형회귀 접근법 확산모형을 활용, 전력반도체 중 전기전자기구의 필수 스위치로 채택되는 MOSFET의 수요를 추정하여 수명주기를 예측하고 그 과정을 설명함으로써 산업관계자는 물론 반도체와 전기전자산업 정책입안자에게 중요한 시사점을 전달하고자 한다.

• 태양에너지
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• 제12권2호
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• pp.79-86
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• 1992

태양에너지 기술개발 및 활용제고를 위해서는 고갈성 자원이 주도하는 현 에너지 시장의 불안정성을 고려할 때 Soft Energy Path에 대한 엄격한 해석이 요구된다. Soft Energy Path는 태양에너지의 미래를 자동적으로 보장하는 것이 아니고 궁극에너지 기술개발을 위한 중간기술개발 전략이 효율적으로 추진될 경우에 그 가치가 발휘될 수 있다. 우리나라의 경우 산업용 저열량 수요처에 대한 태양에너지 활용가능성을 구체화할 수 있는 전략이 Soft Energy Path의 요체가 될 것이다.

• 대한안전경영과학회지
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• 제7권5호
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• pp.85-96
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• 2005

The purpose of the research is to discuss the product safety procedures for the food industry The producer and supplier of the products should satisfy the increasing consumer safety needs. To develop and produce safe products, the food industry must rigorously perform potential hazard findings and very thorough risk analysis to detect even the very minute potential danger. The ultimate product liability rests with the consumer safety and the manufacturer's capability which competes in the market places. This is especially important in the food industry. However, small to medium sized food producing companies are facing challenges in this area due to their overall capabilities. Therefore this research presents safety procedures which are relatively simple to implement.

• 정보학연구
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• 제10권4호
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• pp.69-83
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• 2007

As a hospital environment is reconstructed from supplier-centered values to consumer-centered ones for the existence in the rapidly changing medical market, it can be said that not only must old slogans such as unconditional restructuring, remodelling, etc. be reconsidered, but a new strategy for the development and renovation of a hospital must be urgently required. Accordingly, development of customer-oriented practical strategies is needed and it appears possible to develop marketing and manage contacts, as a practical management strategy, for raising satisfaction of internal and external customers. The ultimate goal of such strategy development may be to ensure consistent potential development by maintenance of existing customers and securing new customers through a strategy of satisfying both existing and new customers. It appears that the competition in the medial will be keener in the future by human resources, members of an organization, Under these circumstances, and in relation to appearance of a new type of occupation of a coordinator, if a hospital could offer appropriate service which can meet the demand of the customers by efficiently utilizing the limited resources through efficient management of contacts between the customers and personnel, the competitive power of a hospital would be much stronger. Therefore, it is necessary to seek customer-impressing management by utilizing a coordinator as a more specialized intermediary as well as many-sided contact management through positive introduction of an expert coordinator system for internal and external customer contact management. It is expected that a hospital can secure a competitive advantage in the market through strategy development supported by an expert coordinator and increasing competitive power by means of practice of a developed creative strategy.

• Nuclear Engineering and Technology
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• 제56권3호
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• pp.803-811
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• 2024

Nuclear accidents such as Fukushima Daiichi have highlighted the potential of passive safety systems to replace or complement active safety systems as part of the overall prevention and/or mitigation strategies. In addition, passive systems are key features of Small Modular Reactors (SMRs), for which they are becoming almost unavoidable and are part of the basic design of many reactors available in today's nuclear market. Nevertheless, their potential to significantly increase the safety of nuclear power plants still needs to be strengthened, in particular the ability of computer codes to determine their performance and reliability in industrial applications and support the safety demonstration. The PASTELS project (September 2020-February 2024), funded by the European Commission "Euratom H2020" programme, is devoted to the study of passive systems relying on natural circulation. The project focuses on two types, namely the SAfety COndenser (SACO) for the evacuation of the core residual power and the Containment Wall Condenser (CWC) for the reduction of heat and pressure in the containment vessel in case of accident. A specific design for each of these systems is being investigated in the project. Firstly, a straight vertical pool type of SACO has been implemented on the Framatome's PKL loop at Erlangen. It represents a tube bundle type heat exchanger that transfers heat from the secondary circuit to the water pool in which it is immersed by condensing the vapour generated in the steam generator. Secondly, the project relies on the CWC installed on the PASI test loop at LUT University in Finland. This facility reproduces the thermal-hydraulic behaviour of a Passive Containment Cooling System (PCCS) mainly composed of a CWC, a heat exchanger in the containment vessel connected to a water tank at atmospheric pressure outside the vessel which represents the ultimate heat sink. Several activities are carried out within the framework of the project. Different tests are conducted on these integral test facilities to produce new and relevant experimental data allowing to better characterize the physical behaviours and the performances of these systems for various thermo-hydraulic conditions. These test programmes are simulated by different codes acting at different scales, mainly system and CFD codes. New "system/CFD" coupling approaches are also considered to evaluate their potential to benefit both from the accuracy of CFD in regions where local 3D effects are dominant and system codes whose computational speed, robustness and general level of physical validation are particularly appreciated in industrial studies. In parallel, the project includes the study of single and two-phase natural circulation loops through a bibliographical study and the simulations of the PERSEO and HERO-2 experimental facilities. After a synthetic presentation of the project and its objectives, this article provides the reader with findings related to the physical analysis of the test results obtained on the PKL and PASI installations as well an overall evaluation of the capability of the different numerical tools to simulate passive systems.

• 한국전자파학회논문지
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• 제26권10호
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• pp.914-923
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• 2015

UAS(Unmanned Aircraft System)는 과거 군용으로 국한되어 활용되었으나, 최근 기술발전에 힘입어 점차 민간용 시장으로 확대되고 있으며, 그 시장 규모가 급격히 성장할 것으로 예상된다. 특히 초연결 시대의 UAS의 이용 형태는 넥스트(next) 5G 시스템 아키텍처에서 하나의 가능한 기반시설로 큰 역할을 할 것이다. UAS에서의 궁극적인 목표는 국가 공역 시스템(NAS: National Airspace System)으로의 통합 운용이며, 이를 위해 무인 비행체 제어를 위한 비업무용(non-payload) 주파수뿐만 아니라, 초연결시대의 다양한 활용분야에 필요한 업무용(payload) 주파수 확보가 중요한 요소이다. 이에 본 연구에서는 기존의 UAS 무선조정용 주파수의 분석과 비업무용 주파수 개발 연구동향 및 향후 UAS 주파수의 효율적 활용방안을 제안한다.

• 한국융합학회논문지
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• 제8권10호
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• pp.371-383
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• 2017

본 연구는 제주 소재 6차산업 추진 경영체를 대상으로 뷰티산업과 농업농촌의 융복합에 의한 뷰티-농업 융복합산업의 인식을 알아보았다. 이는 융복합으로 인한 상생의 산업발전 모델을 제시하기 위한 전 단계의 연구로서, 향후 뷰티-농업융복합산업의 기초 자료로 제공함에 목적이 있다. 화장품산업이 농업 생산물을 주원료로 하며, 최근 농업인들이 뷰티제품의 자체 생산, 체험고객의 유치 등 뷰티산업을 적용하는 것에 기인하였다. 뷰티-농업 융복합산업 종사자와 비종사자로 구분하여 비교한 결과, 고수익 창출 가능성, 뷰티산업에 대한 개인적 관심, 천연자원 활용 가능성 등에서 유의미한 차이가 있었다. 또한 부가가치, 주력산업, 상품경쟁력, 미적추구의 라이프스타일, 시장 규모 등 뷰티-농업융복합 산업발전 가능성 이유에 대해서도 유의미한 차이가 있었다. 그러나 자금, 시설, 기술, 교육, 홍보마케팅 등의 정부지원 필요성 인식 비교에는 집단 간에 유의미한 차이는 없었다. 뷰티-농업의 융복합은 창의적, 다양한 컨텐츠가 필요 하기 때문에 고수준의 기술지원과 지속적 교육이 필요함에 따라 교육을 비롯한 자금, 시설 등의 다양한 정부지원이 중요할 수 있음을 제언한다.

• 지역사회간호학회지
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• 제7권2호
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• pp.410-419
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• 1996

This study was reviewed from 1000 articles related to family planning from 1970 to 1990 and 20 articles associated with natural family planning from 1980 until the present. The purpose of natural family planning(NFP) is to identify the time ovulation of women themselves, to have intercourse with periodic abstinence, and to deliver a healthy child. The ultimate goal of NFP is to promote the family's health. The NFP method is described as periodic abstinence of intercourse to avoid pregnancy by identifying the ovulation time in the menstration cycle. Clinical symptoms and signs of reflection underlying changes in Estrogen and Progesterone are the change of basal body temperature, the change of cervical mucus and cervix, abdominal pain and breast tenderness. The types of NFP are the calender rthythm method, basal body temperature methods, cervical mucus method, symptothermal method, cyclo-thermal method and home based ovulation test kits. Recently the cyclo-thermal method involved. It is calendar rhythm method applied to B.B.T. For the cervical mucus method, when the estrogen level in the blood concentration is increased, the mucus begins to excrete, the amount of moist mucus increases while the mucus is clear, slippery, and smooth. For 3 days, this timing can be considered contraception. Fertility is at a maximum on the day mucus appears, abstinence for 3 days is a type of contraception. Sexual intercourse on a maximum day of mucus maximizes pregnancy potential. But, the contraception depends on the practice of a perfect rule. For basal body temperature methods, at ovulation time, the temperature increases $0.2^{\circ}C-0.5^{\circ}C$. Through the review of literature a high temperature above $0.2^{\circ}C$ for 3 days indicates that the previous 6 day period was ovulation and fertilization. The Symptothermal method is used to determine the prediction of ovulation through the observation of mucus excretion, high temperature, the change of cervical mucus, low abdominal pain, vaginal discharge, and breast change. Home based ovulation test kits are cervico-vaginal fluid aspiration, test a digital electric thermometer, body fluid(blood, saliva, urine) test kits, They are on the market. However, research on the contraception method is still in progress. For pregnancy it is still too early to use home based ovulation test kits because of deficit of reliability and simplicity more research on the technology is needed. It is suggested that NFP methods be included in nursing curriculum in order to educate NFP users how to effectively use NFP methods. Furthermore, this study has implications for the dissemination of NFP methods in terms of Korean policies of family planning and the support of community welfare agences.

• 통상정보연구
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• 제13권2호
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• pp.75-94
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• 2011

캐나다음식시장은 아시아에서 시작된 한류의 영향으로 한국음식에 대한 관심과 소비가 괄목하게 늘고 있어 중요 소비시장으로서의 성장가능성과 함께 꼭 공략해야할 목표시장이라고 볼 수 있다. 본 연구를 통해 캐나다 내 한국음식을 세계화하는 초석이 마련되고 한국음식의 우수성과 개발가능성을 높이고자 하였다. 캐나다 정부에서는 자국의 인구 증가를 위해 강력한 이민 정책을 펼쳐오고 있다. 따라서 캐나다는 다양한 인종의 사람들과 음식문화가 뿌리를 내려 한국음식의 소비시장으로서 높은 잠재력을 가지고 있다. 그러므로 한국음식의 국제경쟁력을 높이기 위한 기초연구로 캐나다의 한국음식을 인식하는 소비자들의 유형을 파악해보는 것이 우선 중요하다고 할 수 있다. Q방법론을 통하여 캐나다 응답자의 주관성을 이용해 한국음식에 대한 중요한 차원, 목표 시장의 특성, 한국음식을 소비하는 캐나다 대학생의 특성을 밝히고자 한다. 한국음식에 대한 캐나다 대학생 유형의 세 가지 범주(실용적인 트렌드 타입, 전통 문화 추구 타입, 초심자 타입)를 발견하고 한국음식의 객관적인 특성보다는 캐나다 대학생들의 한국음식에 대한 주관적인 특성을 밝히고 포지셔닝 전략을 위한 기초를 제안하고자 한다.