• 제목/요약/키워드: FACTS Application

검색결과 199건 처리시간 0.027초

주거환경개선사업 건축물 해체 시 발생원단위 적용의 경제성 효과에 관한 연구 (A Study on the Economic Benefits after an Application of Construction Waste Units in Housing Environment Amelioration Policies)

  • 황현승;손병훈;홍원화
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2008년 추계학술발표대회 논문집
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    • pp.266-270
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    • 2008
  • The construction wastes have been enormously increased after 90's, but construction wastes have depended on reclamation, therefore the environmental disruption and contamination are getting in the hot issue of society and in controversy with residents. With the consequence that indicates a substitute about an application of construction waste units is the most important thing for studying construction wates of quantity when the construction units are demolished. Nowadays, the area under the housing environment amelioration policies is getting rapidly old, then it is beyond anticipating reconstruction. Likewise, it is common when the process of construction wastes make progress to investigate uneconomically in point of facts, therefore to derive economical effects using construction wastes units should be urgent as soon as possible. In conclusion, the purpose of this study offers the variety of construction wastes and process of treatments, comparison of which the construction is demolished and economical effects of application of construction units.

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The transition of noteworthy rice diseases and their control in Korea

  • Park J. S.
    • 한국응용곤충학회지
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    • 제4권
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    • pp.1-6
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    • 1965
  • In Korea the most important plant industry is the rice-growing but she has not yet attained self-sufficiency with regard to rice which is the basic food of Korean. In the past, various measures of increasing rice production have been tried with some success but the increasing rate of did not show the sufficient result. Judging from experiences, disease control may be the most important factor which has influence on increasing of rice production in Korea. During the past 60 years three periods divided by the transition of rice diseases were noted, and especially the recent transition attracted much attention . That is, sheath blight and stripe which were minor diseases in the past have promptly spread all over the country and caused heavy losses to rice plant, and also local outbreak of bacterial leaf blight and dwarf were noticed. Various environmental factors are related to such transition of rice disease. Above all, cultivated varieties susceptible to these diseases, increase of application of nitrogenous fertilizer, earlier transplanting and density of transplanting are considered to be lucre closely related to the development of these diseases and successive development of blast. On the other hand. application of forage fungicides such as organic mercury compounds specific to blast contributed to reduce prevalent area if blast in spite of wide spread of susceptible varieties and increase of application of nitrogenous fertilizer. These facts were confirmed by Korean investigators At the present which various diseases to control coexist in the same region, no one variety resistant to all of these diseases is provided and cultural practices for the control of these diseases often do not produce sufficient yield of rice. it is emphasized that a role of pesticides is very great.

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전력시스템 동요억제를 위한 UPFC 적용 및 제어 (Application and Control of UPFC for Improving Power System Oscillation Damping)

  • 김영수;김태준;이병하;한학근;손광명;박종근
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 D
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    • pp.1124-1126
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    • 1997
  • The Unified Power Flow Controller(UPFC) with a series inverter and a shunt inverter ia able to control all three line Parameters(voltage, impedance and phase angle) and so UPFC technology has the potential to enhance the implementation and broad application of the FACTS concept with improved Performance. In this Paper, the UPFC is applied in order to improve the power flow oscillation damping. The modal performance measure is minimized in order to determine the optimal parameters of UPFC controller for damping Power flow oscillations. The dynamics of the injected voltage of UPFC is represented as a first order delay element. The UPFC controller used here is of the PIO type and the input signal to the controller is the active power flow through the UPFC. The effect of UPFC application to the Power system are analyzed from the stand point of power system oscillation damping.

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허영(許郢), 허언(許鄢) 형제명의(兄弟名醫)의 가전행적(家傳行蹟)과 의약사실(醫藥事實) (Hereditary Testimonies and Medico-historical Facts of the Eminent Brother Doctors Young Hur and Eon Hur)

  • 안상우
    • 한국한의학연구원논문집
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    • 제15권1호
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    • pp.1-11
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    • 2009
  • The eminent brother doctors Cho-Gaek Hur (Young Hur) and Cho-Sam Hur (Eon Hur) represent the medical tradition of the southeastern region of Mt. Jirisan incluiding Sancheong. This study investigated and examined their herediatary testimonies and medico-historical facts described in the literature tale, genealogy and family collection of works. At an early age after their family run away to the southern region from the harm of political struggle, they gave up taking the highest-level state examination to recruit ranking officials and set their heart on learning medicine. Their choice of medicine was the second best plan for the survival of their family and descendents from the influence of their ancestors who suffered from the party strife during the late Joseon Dynasty. The case is a good example of the deliberate action of the nobility intellectuals since the late Goryeo and early Joseon dynasties to who made attempts to have the minimum elegance and cause while securing livelihood after they have been collapsed politically. The tale of Cho-Gaek and Cho-Sam is a typical story of eminent doctors which combined reality and fiction about the persons who had outstanding medical skills. In the tale, the elder brother was good at herbal prescriptions and the younger brother was good at acupuncture, contrasting the treatment of administrative internal medicine and insertive acupuncture treatment. It shows that the prepositions for the choice of the treatment method for the public during that period were safety and fast efficacy. In their old age, they wrote a book titled Jinyangsinbang. Another Jinwoosinbang is estimated as a different kind of copy, which was a medical writing from experience that derived from the same original book as Jinyangsinbang. written by Cho-Gaek Hur and it is a valuable medical material that possesses the distinct features of the local medicine during the late Joseon Dynasty. Most of the contents are variations in application using the basis of Dongeuibogam, forming the roots of the traditional Korean medicine in Sancheong region together with the medical activities of the Hur brothers.

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The Current Telecommunications Infrastructure in Ecuador is Ready to Start with the Implementation of IoT Applications?

  • Yepez, Johanna Fernandez;Kim, Yun Seon
    • Asia Pacific Journal of Business Review
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    • 제3권1호
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    • pp.57-76
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    • 2018
  • The "Internet of things" (IoT) is becoming an increasingly growing topic of conversation, it is a new emergent technology that can be present in almost every field and application. It's a concept that not only has the potential to impact how people live but also how people work. Broadband Internet and Mobile Internet are becoming more widely available, the cost of the service is decreasing, more devices are being created with Wi-Fi capabilities and sensors built into them, technology costs are going down, and smartphone penetration is growing so fast. All of these facts are creating the best environment for the IoT applications. In a country like Ecuador, is important to have a previous analysis about the feasibility of the implementation of this new technology in order to know what are the challenges the country has to face, and also to not stay behind as the other countries in the region are advancing. Currently, this kind of analysis does not exist. The Internet of Things is an innovation where business and technology models in Ecuador are relatively unexplored. The current infrastructure deployed in Ecuador and the available devices in the market are the central facts to initiate with the research, which is a starting point to show if Ecuador is ready to this technology, and if is not ready what is missing. This study shows the current telecommunications status in Ecuador, and its strengths and weaknesses to start the deployment of Internet of Things. Besides, it also will show the most likely applications that can be easily adopted for the Ecuadorian market with its respective availability, affordability, and adaptability.

칼륨 시용에 따른 목초중 마그네슘함량의 계절변화 (Response of Magnesium Content of Forages to potassium Application in grassland)

  • Sangdeog A. Kim;Shigekata Yoshida;Mitsuaki Ohshima;Ryosei Kayama
    • 한국초지조사료학회지
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    • 제13권2호
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    • pp.105-111
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    • 1993
  • 봄철에 자라는 목초를 다른 계절의 목초와 비교하면 어떤 특성이 있는지, 또 그 시기의 칼룸질 비료의 시용이 목초의 수분 또는 마그네슘 함량에 어떤 영향이 있는가를 알아보고자 오차드그라스 (Dacctylis glomerala L.) 채초지에서 시험했는데, 그 결과는 칼륨 시용에 따른 무기질과 수분함량에 계절차이가 뚜렷하다는 것이었다 본 시험에서 봄철 (4월)에 생육하는 목초의 무기질함량은 다른 계절보다 큰 변화를 나타냈으며, 칼륨함량은 높고 마그네슘함량은 가장 낮았다. 또한 봄찰 목초의 수분함량은 높았으며, 칼륨 시용에 의해 민감한 변화를 보였다.

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웹 환경의 실시간 일괄처리 성능 분석 및 개선 방안 (The efficiency analysis and improvement plan of real time batch processing in web environment)

  • 이선현
    • 한국컴퓨터산업학회논문지
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    • 제5권7호
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    • pp.771-780
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    • 2004
  • 인터넷 기반 기술의 발전과더불어 정보 기술을 응용한 애플리케이션 개발에 따라 C/S(Client/Server) 환경에서 Web 환경으로 애플리케이션이 전환됨에 따라 사용자의 요구는 다양, 다변화되었다. 이에 사용자의 요구를 충족하다 보면, 실시간 일괄처리 성격의 업무들은 제한된 기존 시스템으로써는 감당하기 어려운 난관에 직면하게 된다. 이를 해결하기 위한 웹 환경의 인프라에 대해 정기적인 튜닝과 진단을 통하여 시스템에 대한 확장 내지는 새로운 시스템 도입에 결과적으로 도달하게 된다. 본 논문에서는 시스템의 성능을 분석하는 과정을 통하여 개선 방안과 시스템 도입 시 고려할 사항, 상관관계 및 개선 방안을 제안하고자 한다.

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해외 이민 한국인의 정신건강관리를 위한 웹기반 지능형 전문가시스템 개발 및 적용 (Development and Application of a Web-based Expert System using Artificial Intelligence for Management of Mental Health by Korean Emigrants)

  • 배정이
    • 대한간호학회지
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    • 제43권2호
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    • pp.203-214
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    • 2013
  • Purpose: The purpose of this project was to develop an international web-based expert system using principals of artificial intelligence and user-centered design for management of mental health by Korean emigrants. Using this system, anyone can access the system via computer access to the web. Methods: Our design process utilized principles of user-centered design with 4 phases: needs assessment, analysis, design/development/testing, and application release. A survey was done with 3,235 Korean emigrants. Focus group interviews were also conducted. Survey and analysis results guided the design of the web-based expert system. Results: With this system, anyone can check their mental health status by themselves using a personal computer. The system analyzes facts based on answers to automated questions, and suggests solutions accordingly. A history tracking mechanism enables monitoring and future analysis. In addition, this system will include intervention programs to promote mental health status. Conclusion: This system is interactive and accessible to anyone in the world. It is expected that this management system will contribute to Korean emigrants' mental health promotion and allow researchers and professionals to share information on mental health.

수학 영재교육 자료의 개발과 적용 사례 연구 (Development and application of mathematical activities for gifted students)

  • 이경화
    • 대한수학교육학회지:수학교육학연구
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    • 제13권3호
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    • pp.365-382
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    • 2003
  • 본 연구는 수학적으로 재능이 있는 학생에게 수학적 사고 경험을 제공하고 수학적 능력을 보다 발전시킬 수 있는 교육 자료를 개발하고 적용관찰하는 것을 목표로 한다. 먼저 크루테츠키의 연구에서 제시하는 수학 영재아의 특성을 확인하고 그것이 지도 상황과 어떻게 관련을 맺도록 해야 하는가를 강완(1994)의 연구를 토대로 알아 본다. 두 번째로 수학적 사고력의 함양을 강조한 폴리아의 이론을 토대로 교육 자료가 갖추어야 할 조건을 살펴본다. 크루테츠키의 연구는 수학적으로 재능이 있는 학생의 특징을 이해할 수 있게 하며, 폴리아의 이론은 영재교육 자료가 어떤 구조로, 어떤 특성에 따라 개발되어야 하는가에 대한 시사점을 제공한다. 이러한 이론적 검토에 기초하여 동일 주제를 4차에 걸쳐서 구체화한 교육 자료를 소개하고 실제로 적용한 결과도 제시 한다.

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인적오류에 대응하는 항공분야의 노력과 발전방향 (Effort and Development Direction of Aviation Organization Against Human Errors)

  • 김대호
    • 대한인간공학회지
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    • 제30권1호
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    • pp.29-39
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    • 2011
  • Safety management paradigm which against human errors in aviation industry is now changing from the follow-up measures after accident in the past to systematic approach that a forecast the hazards and improve the working system of the group to prevent accidents. As human factors are based on the man's specific psychological traits, it takes much time and efforts to prepare the preventive measures. That's why aviation industry is interested in the accident-prevent measurements against human errors. In this thesis, therefore, we are going to introduce the efforts that aviation organizations have tried and recommend management systems and discuss the suggestive facts. At first, we discussed introduction of HFACS which is the systematic accidents-classification system related to human errors in the aviation organization and countermeasure in the aspects of management, technology/engineering, education training. We described about FOQA, LOSA, CRM/TEM, aviation safety information DB in the aspect of management, and explained safety technologies that prevent human errors or avoid technologically when emergency occurs in the aspect of technology/engineering. In the aspect of education training, we explained the application plan about safety programs(LOFT/Simulator use, CRM/TEM application etc).