• 제목/요약/키워드: Application Security

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데이터방송 인터랙티브 게임 규제 및 이용자 인식에 관한 연구: 승부게임을 중심으로 (A Research on the Regulations and Perception of Interactive Game in Data Broadcasting: Special Emphasis on the TV-Betting Game)

  • 변동현;정문열;배홍섭
    • 한국언론정보학보
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    • 제35권
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    • pp.250-291
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    • 2006
  • 본 논문은 유럽 등 해외에서 현재 활성화 되어있는 카드게임, 경마게임 등을 활용한 데이터방송 승부게임(TV-betting) 서비스를 조작하여 이를 경험한 패널집단을 대상으로 인터랙티브게임 관련 긍정적, 부정적 인식을 조사하여 국내에서 데이터방송 승부게임에 대한 규제문제와 그 도입가능성을 모색해 보았다. 조사연구를 수행하기 위해 국내 디지털케이블방송에서의 데이터방송 표준인 OCAP시스템 환경에서 데이터방송 승부게임 데모프로그램을 제작하고 패널집단이 이 프로그램의 시청경험을 하게 한 뒤에 심층적인 면접을 시행하였다. 그 결과를 정리하면 다음과 같다. 패널집단은 데이터방송 승부게임이 오락효과, 감정정화, 스트레스 해소 등 시청자에게 즐거움을 주는 긍정적 요소가 많으나 사회적 환경 때문에 외국과 같이 쉽게 도입되기는 어려울 것으로 인식하고 있었다. 그리고 데이터방송 승부게임이 도입되기 위해서는 결제에서의 안정된 보안장치를 기반으로 매체 신뢰도가 보장 되어야 하고, 승부게임을 너무 자주하지 않게끔 시간적 제약을 고려한 방송편성, 베팅(betting)한도의 제한, 다른 데이터방송 가입자들의 셋탑박스에 접속하여 게임을 하는 경우를 차단하는 등 일련의 규제적 시스템 장치를 통해서 과도한 사행성을 억제해야 한다고 판단하고 있었다. 이에 여러 가지 부작용을 최소화하는 방안 등 정부의 법적인 규제 틀 안에서 승부게임의 단계적인 도입이 검토될 수 있다고 인식하고 있었다. 정부는 이를 고려해 장기적인 관점에서 데이터방송 정책수립을 해야 하고, 이를 통해 법적인 규제 틀 안에서 안정적으로 데이터방송 승부게임을 즐길 수 있는 방안이 마련된다면 향후 국내에서 인터랙티브 TV게임이 오락적인 기능과 함께 산업적으로는 데이터방송 등 뉴미디어 산업 활성화를 도모할 수 있을 것으로 기대된다.에서 이야기하는 사회문화적, 역사적 상황이 다른 문화에서는 같은 대상에 대한 이해가 달라질 수도 있다는 예시를 보여준 것이다. 이렇듯 "한류"의 정체성을 파악하기 위해서는 우선 각 문화의 다양성과 특수성에 대한 연구가 선행되어야 하고 현재의 우리와 다른 사람들 사이에 진행되고 있는 문화적 욕구들이 어떻게 생성되고 있는지 현장에서 연구할 필요가 있다. 덧붙여 한국의 대중문화가 이러한 욕구에 잘 부합되고 있는지, 새로운 무엇을 만들어 내고 있지는 않은지 연구할 필요성을 절실히 느낀다.해 측정하였다. 실험은 4개의 집단으로 나누어져 실시하였는데 한 집단은 지각된 위험과 희소성 메시지에 동시에 노출되도록 하였고 두 번째 집단과 세 번째 집단은 각각의 두 요인 중 하나의 요인에만 노출되도록 하였다. 그리고 나머지 한 집단은 통제집단으로 지각된 위험이나 희소성 메시지를 모두 처치하지 않은 프로그램을 시청하게 하였다. 연구결과 흥미로운 사실들이 발견되었는데 이용경험에 상관없이 모든 이용자들은 지각된 위험에 부정적인 반응을 보였으며 특히 이용경험이 풍부한 홈쇼핑이용자들인 경우 이용경험이 적은 소비자에 비해 지각된 위험에 더욱 민감하게 반응함을 알 수 있었다. 또한 희소성 메시지에 대해서는 통계적으로는 유의미하지 않았지만 이용경험이 높은 소비자가 이용경험이 적은 소비자들 보다 오히려 부정적인 반응을 보임을 알 수 있었다. 또한 지각된 위험과 희소성 메시지의 상호작용효과의 경우 이용경험이 높은 집단의 소비자가 특히 제품에 대한 태도반응에서 매우 부정적인 반응을 보임을 알 수 있었다. 이러한 사실은 이용경험이 풍부한 소비자일수록 신뢰가 생기지 않는 지각된 위험의 상황에서 희소성메시지가 제시될 때 희소성메시지의 설득적 의도를 위협적인 요소로 생각한다고 해석할 수 있다. 이상의 결과는 선행

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영한 기계 번역에서 미가공 텍스트 데이터를 이용한 대역어 선택 중의성 해소 (Target Word Selection Disambiguation using Untagged Text Data in English-Korean Machine Translation)

  • 김유섭;장정호
    • 정보처리학회논문지B
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    • 제11B권6호
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    • pp.749-758
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    • 2004
  • 본 논문에서는 미가공 말뭉치 데이터를 활용하여 영한 기계번역 시스템의 대역어 선택 시 발생하는 중의성을 해소하는 방법을 제안한다. 이를 위하여 은닉 의미 분석(Latent Semantic Analysis : LSA)과 확률적 은닉 의미 분석(Probabilistic LSA : PLSA)을 적용한다. 이 두 기법은 텍스트 문단과 같은 문맥 정보가 주어졌을 때, 이 문맥이 내포하고 있는 복잡한 의미 구조를 표현할 수 있다 본 논문에서는 이들을 사용하여 언어적인 의미 지식(Semantic Knowledge)을 구축하였으며 이 지식은 결국 영한 기계번역에서의 대역어 선택 시 발생하는 중의성을 해소하기 위하여 단어간 의미 유사도를 추정하는데 사용된다. 또한 대역어 선택을 위해서는 미리 사전에 저장된 문법 관계를 활용하여야 한다. 본 논문에서는 이러한 대역어 선택 시 발생하는 데이터 희소성 문제를 해소하기 위하여 k-최근점 학습 알고리즘을 사용한다. 그리고 위의 두 모델을 활용하여 k-최근점 학습에서 필요한 예제 간 거리를 추정하였다. 실험에서는, 두 기법에서의 은닉 의미 공간을 구성하기 위하여 TREC 데이터(AP news)론 활용하였고, 대역어 선택의 정확도를 평가하기 위하여 Wall Street Journal 말뭉치를 사용하였다. 그리고 은닉 의미 분석을 통하여 대역어 선택의 정확성이 디폴트 의미 선택과 비교하여 약 10% 향상되었으며 PLSA가 LSA보다 근소하게 더 좋은 성능을 보였다. 또한 은닉 공간에서의 축소된 벡터의 차원수와 k-최근점 학습에서의 k값이 대역어 선택의 정확도에 미치는 영향을 대역어 선택 정확도와의 상관관계를 계산함으로써 검증하였다.젝트의 성격에 맞도록 필요한 조정만을 통하여 품질보증 프로세스를 확립할 수 있다. 개발 된 패키지의 효율적인 활용이 내조직의 소프트웨어 품질보증 구축에 투입되는 공수 및 어려움을 줄일 것으로 기대된다.도가 증가할 때 구기자 열수 추출 농축액은 $1.6182{\sim}2.0543$, 혼합구기자 열수 추출 농축액은 $1.7057{\sim}2.1462{\times}10^7\;J/kg{\cdot}mol$로 증가하였다. 이와 같이 구기자 열수 추출 농축액과 혼합구기자 열수 추출 농축액의 리올리지적 특성에 큰 차이를 나타내지는 않았다. security simultaneously.% 첨가시 pH 5.0, 7.0 및 8.0에서 각각 대조구의 57, 413 및 315% 증진되었다. 거품의 열안정성은 15분 whipping시, pH 4.0(대조구, 30.2%) 및 5.0(대조구, 23.7%)에서 각각 $0{\sim}38.0$$0{\sim}57.0%$이었고 pH 7.0(대조구, 39.6%) 및 8.0(대조구, 43.6%)에서 각각 $0{\sim}59.4$$36.6{\sim}58.4%$이었으며 sodium alginate 첨가시가 가장 양호하였다. 전체적으로 보아 거품안정성이 높은 것은 열안정성도 높은 경향이며, 표면장력이 낮으면 거품형성능이 높아지고, 비점도가 높으면 거품안정성 및 열안정성이 높아지는 경향이 있었다.protocol.eractions between application agents that are developed using different

항공(航空) 자유화(自由化)와 '단일(單一)' 유럽항공시장(航空市場) 접근(接近);유럽사법재판소(司法裁判所)의 미(美) ${\cdot}$ 독(獨) 항공운수협정(航空運輸協定)상 '국적요건(國籍要件)' 조항(條項)의 공동체법(共同體法)상 '내국민대우(內國民待遇)' 규정 위반(違反) 관련 '집행위원회(執行委員會) 대(對) 독일연방(獨逸聯邦)' 사건 판결(判決)(2002)의 문제점을 중심으로 ('Open Skies' Agreements and Access to the 'Single' European Sky;Legal and Economic Problems with the European Court of Justice's Judgment in 'Commission v. Germany'(2002) Striking Down the 'Nationality Clause' in the U.S.-German Agreement)

  • 박현진
    • 한국항공운항학회지
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    • 제15권1호
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    • pp.38-53
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    • 2007
  • In a seminal judgment of November 2002 (Case C-476/98) relating to the compatibility with Community laws of the 'nationality clause' in the 1996 amending protocol to the 1955 U.S.-German Air Services Agreement, the European Court of Justice(ECJ) decided that the provision constituted a measure of an intrinsically discriminatory nature and was thus contrary to the principle of national treatment established under Art. 52 of the EC Treaty. The Court, rejecting bluntly the German government' submissions relying on public policy grounds(Art. 56, EC Treaty), seemed content to declare and rule that the protocol provision requiring a contracting state party to ensure substantial ownership and effective control by its nationals of its designated airlines had violated the requirement of national treatment reserved for other Community Members under the salient Treaty provision. The German counterclaims against the Commission, although tantalizing not only from the perusal of the judgment but from the perspective of international air law, were nonetheless invariably correct and to the point. For such a clause has been justified to defend the 'fundamental interests of society from a serious threat' that may result from granting operating licenses or necessary technical authorizations to an airline company of a third country. Indeed, the nationality clause has been inserted in most of the liberal bilaterals to allow the parties to enforce their own national laws and regulations governing aviation safety and security. Such a clause is not targeted as a device for discriminating against the nationals of any third State. It simply acts as the minimum legal safeguards against aviation risk empowering a party to take legal control of the designated airlines. Unfortunately, the German call for the review of such a foremost objective and rationale underlying the nationality clause landed on the deaf ears of the Court which appeared quite happy not to take stock of the potential implications and consequences in its absence and of the legality under international law of the 'national treatment' requirement of Community laws. Again, while US law limits foreign shareholders to 24.9% of its airlines, the European Community limits non-EC ownership to 49%, precluding any ownership and effective control by foreign nationals of EC airlines, let alone any foreign takeover and merger. Given this, it appears inconsistent and unreasonable for the EC to demand, $vis-{\grave{a}}-vis$ a non-EC third State, national treatment for all of its Member States. The ECJ's decision was also wrongly premised on the precedence of Community laws over international law, and in particular, international air law. It simply is another form of asserting and enforcing de facto extraterritorial application of Community laws to a non-EC third country. Again, the ruling runs counter to an established rule of international law that a treaty does not, as a matter of principle, create either obligations or rights for a third State. Aside from the legal problems, the 'national treatment' may not be economically justified either, in light of the free-rider problem and resulting externalities or inefficiency. On the strength of international law and economics, therefore, airlines of Community Members other than the designated German and U.S. air carriers are neither eligible for traffic rights, nor entitled to operate between or 'free-ride' on the U.S. and German points. All in all and in all fairness, the European Court's ruling was nothing short of an outright condemnation of established rules and principles of international law and international air law. Nor is the national treatment requirement justified by the economic logic of deregulation or liberalization of aviation markets. Nor has the requirement much to do with fair competition and increased efficiency.

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도시재생사업의 평가요인 선정 및 적용 (Selection and Application of Evaluation Factors for Urban Regeneration Project)

  • 장철규
    • 한국조경학회지
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    • 제47권6호
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    • pp.53-66
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    • 2019
  • 본 연구는 도시재생사업을 평가하기 위한 지표 선정 및 개선방안을 제시하기 위해 연구를 진행하였다. 먼저 도시재생 관련 전문가를 대상으로 설문조사 및 분석을 수행하여 평가지표를 선정하였으며, 선정된 지표를 활용하여 도시재생사업이 시행 중인 원고개 마을의 주민의견을 수렴·분석하였다. 이를 바탕으로 해당지역의 개선방안을 제시하였다. 연구결과를 살펴보면, 도시재생 평가지표를 그 특성에 따라 '물리적 환경', '사회적 환경', '경제적 환경' 부문으로 구분하고, 1차 전문가 설문 및 MCB 분석을 통해 도시재생 평가요인을 선정하였다. 그 결과, '물리적 환경' 부문은 '교통 및 보행환경', '주거(주택) 환경', '안전 및 보안환경', '녹지 공간', '경관 개선', '공공 공간' 등 6개 요인이 선정되었으며, '사회적 환경' 부문은 '주민 참여', '공동체 활성화', '지자체 및 지원센터 역할', '주민 교육' 등 4개의 요인, '경제적 환경'부문은 '지역경제 활성화', '경제기반 환경조성', '일자리 창출' 등 3개의 평가요인이 선정되었다. 다음으로 선정된 평가요인을 2차 전문가 설문 및 AHP 분석을 수행하여 종합가중치를 도출하였다. 도시재생 평가요인 가운데 '주거(주택) 환경'이 0.108로 가장 높은 가중치 값을 가지며, 다음으로 '지역경제 활성화', '주민참여' 가 높은 값을 가지는 것으로 분석되었다. 마지막으로 도시재생 평가요인을 활용하여 원고개 마을의 주민의식을 분석한 결과, '주차환경', '노후주택 및 생활환경 정비', '마을 및 사회적 기업을 조성할 수 있는 환경조성', '상가 및 업무환경 개선', '기존 상권 유지 및 활성화', '가내수공업, 부업 등 소규모 지역경제 활성화' 등이 종합중요도는 높지만 만족도는 낮아 중점 개선이 필요한 것으로 나타났다. 따라서 원고개 마을의 도시재생사업을 개선하기 위해선 공가 및 폐가, 유휴지 등을 활용하여 공용주차장을 조성하거나, 마을 내 위치한 학교운동장을 주민들에게 개방하는 등의 주차환경 개선이 필요할 것으로 판단된다. 또한 협동조합과 연계하여 마을기업, 사회적 기업을 육성하고, 주민활동을 통해 생산된 제품을 주변시장에 판매하는 등의 경제적 활동을 장려시켜야 할 것으로 사료된다.

The Contribution of Innovation Activity to the Output Growth of Emerging Economies: The Case of Kazakhstan

  • Smagulova, Sholpan;Mukasheva, Saltanat
    • 유통과학연구
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    • 제10권7호
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    • pp.33-41
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    • 2012
  • The purpose of this study is to analyse the state of the energy industry and to determine the efficiency of its functioning on the basis of energy conservation principle and application of innovative technologies aimed at improving the ecological modernisation of agricultural sectors of Kazakhstan. The research methodology is based on an integrated approach of financial and economic evaluation of the effectiveness of the investment project, based on calculation of elasticity, total costs and profitability, as well as on comparative, graphical and system analysis. The current stage is characterised by widely spread restructuring processes of electric power industry in many countries through introduction of new technical installations of energy facilities and increased government regulation in order to enhance the competitive advantage of electricity market. Electric power industry features a considerable value of creating areas. For example, by providing scientific and technical progress, it crucially affects not only the development but also the territorial organisation of productive forces, first of all the industry. In modern life, more than 90% of electricity and heat is obtained by Kazakhstan's economy by consuming non-renewable energy resources: different types of coal, oil shale, oil, natural gas and peat. Therefore, it is significant to ensure energy security, as the country faces a rapid fall back to mono-gas structure of fuel and energy balance. However, energy resources in Kazakhstan are spread very unevenly. Its main supplies are concentrated in northern and central parts of the republic, and the majority of consumers of electrical power live in the southern and western areas of the country. However, energy plays an important role in the economy of industrial production and to a large extent determines the level of competitive advantage, which is a promising condition for implementation of energy-saving and environmentally friendly technologies. In these circumstances, issues of modernisation and reforms of this sector in Kazakhstan gain more and more importance, which can be seen in the example of economically sustainable solutions of a large local monopoly company, significant savings in capital investment and efficiency of implementation of an investment project. A major disadvantage of development of electricity distribution companies is the prevalence of very high moral and physical amortisation of equipment, reaching almost 70-80%, which significantly increases the operating costs. For example, while an investment of 12 billion tenge was planned in 2009 in this branch, in 2012 it is planned to invest more than 17 billion. Obviously, despite the absolute increase, the rate of investment is still quite low, as the total demand in this area is at least more than 250 billion tenge. In addition, industrial infrastructure, including the objects of Kazakhstan electric power industry, have a tangible adverse impact on the environment. Thus, since there is a large number of various power projects that are sources of electromagnetic radiation, the environment is deteriorated. Hence, there is a need to optimise the efficiency of the organisation and management of production activities of energy companies, to create and implement new technologies, to ensure safe production and provide solutions to various environmental aspects. These are key strategic factors to ensure success of the modern energy sector of Kazakhstan. The contribution of authors in developing the scope of this subject is explained by the fact that there was not enough research in the energy sector, especially in the view of ecological modernisation. This work differs from similar works in Kazakhstan in the way that the proposed method of investment project calculation takes into account the time factor, which compares the current and future value of profit from the implementation of innovative equipment that helps to bring it to actual practise. The feasibility of writing this article lies in the need of forming a public policy in the industrial sector, including optimising the structure of energy disbursing rate, which complies with the terms of future modernised development of the domestic energy sector.

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QR 코드를 이용한 의료정보 시스템 설계 및 구현 (Design and Implementation of Medical Information System using QR Code)

  • 이성권;정창원;주수종
    • 인터넷정보학회논문지
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    • 제16권2호
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    • pp.109-115
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    • 2015
  • 신규 의료기기 개발 기술의 발전으로 다양한 형태로 손쉽게 생체 정보 및 의료 정보를 얻을 수 있는 기술이 증가하고 있다. 이러한 정보 수집 기술과 기기들의 증가로 생체 정보는 일상생활의 라이프로그와 함께 의료서비스의 주요 정보로 활용되고 있다. 그러나 다양한 생체신호의 활용성이 증가하고 있지만 보안적인 측면을 고려하지 않는 문제점을 갖고 있다. 또한, 의료현장에서 환자의 생체신호와 의료영상정보는 개별적인 디바이스에 의해 생성되며, 통합 관리되지 못하는 실정이다. 이러한 문제점을 해결하기 위해서, 본 논문에서는 생체신호와 의사의 소견정보를 포함하여 QR 코드화하고 이와 연계된 의료영상정보와 통합하고자 한다. 이를 위해, 의료영상정보 표준인 DICOM(Digital Imaging and Communication in Medicine)과 기존 생체신호 계측기들로부터 수집된 생체신호를 QR 코드화하여 의료영상정보에 통합한 이미지 파일 스킴을 제시한다. 그리고 시스템 구현 환경은 의료영상기기와 생체신호 수집을 위한 생체신호 계측기 그리고 스마트 디바이스와 PC로 구성하였다. 의료기기나 생체 신호 계측장치로부터 데이터를 전송 받기 위한 의료영상이미지 정보와 생체신호의 ROI 추출을 위하여 .NET Framework를 사용하여 QR 서버 모듈을 윈도우 서버 2008 운영체제에서 운영되도록 구현하였다. QR 서버 모듈의 주요기능은 의료영상기기로부터 생성된 DICOM파일을 파싱하고, 식별 ROI 정보를 추출하여 데이터베이스에 저장하여 관리한다. 또한, EMR, OCS와 같은 환자의 의료정보는 기본 정보 및 긴급상황 시 필요한 ROI 정보를 추출하여 QR코드화 하여 관리한다. 또한 생체 계측 기기로 환자 식별에 사용될 PID (patient identification) 와 함께 생체 정보를 전송 받을 경우 생체 정보의 크기에 따라 이를 해당 환자의 ROI와 함께 QR코드화 하여 관리하며, 생체 정보 파일 또한 저장하여 관리한다. 전송받은 생체정보가 QR코드로 변환할 최대 사이즈 이상일 경우 서버를 통해 생체정보에 접근할 수 있는 URL 정보를 QR코드화 한다. 또한 QR 코드 형태로 제공되는 정보는 .NET 프레임워크가 설치된 PC와 Android기반의 스마트 단말기상에 뷰어 프로그램을 통해 확인함으로 인증된 클라이언트만이 관련 정보를 확인할 수 있도록 하였다. 끝으로 응용 서비스의 수행결과를 통해 기존 의료영상정보와 생체신호 그리고 환자의 건강정보가 통합되어 의료현장에서 적용하는데 적합한 의료정보 서비스를 제공함을 보였다.

Wearable Computers

  • Cho, Gil-Soo;Barfield, Woodrow;Baird, Kevin
    • 섬유기술과 산업
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    • 제2권4호
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    • pp.490-508
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    • 1998
  • One of the latest fields of research in the area of output devices is tactual display devices [13,31]. These tactual or haptic devices allow the user to receive haptic feedback output from a variety of sources. This allows the user to actually feel virtual objects and manipulate them by touch. This is an emerging technology and will be instrumental in enhancing the realism of wearable augmented environments for certain applications. Tactual displays have previously been used for scientific visualization in virtual environments by chemists and engineers to improve perception and understanding of force fields and of world models populated with the impenetrable. In addition to tactual displays, the use of wearable audio displays that allow sound to be spatialized are being developed. With wearable computers, designers will soon be able to pair spatialized sound to virtual representations of objects when appropriate to make the wearable computer experience even more realistic to the user. Furthermore, as the number and complexity of wearable computing applications continues to grow, there will be increasing needs for systems that are faster, lighter, and have higher resolution displays. Better networking technology will also need to be developed to allow all users of wearable computers to have high bandwidth connections for real time information gathering and collaboration. In addition to the technology advances that make users need to wear computers in everyday life, there is also the desire to have users want to wear their computers. In order to do this, wearable computing needs to be unobtrusive and socially acceptable. By making wearables smaller and lighter, or actually embedding them in clothing, users can conceal them easily and wear them comfortably. The military is currently working on the development of the Personal Information Carrier (PIC) or digital dog tag. The PIC is a small electronic storage device containing medical information about the wearer. While old military dog tags contained only 5 lines of information, the digital tags may contain volumes of multi-media information including medical history, X-rays, and cardiograms. Using hand held devices in the field, medics would be able to call this information up in real time for better treatment. A fully functional transmittable device is still years off, but this technology once developed in the military, could be adapted tp civilian users and provide ant information, medical or otherwise, in a portable, not obstructive, and fashionable way. Another future device that could increase safety and well being of its users is the nose on-a-chip developed by the Oak Ridge National Lab in Tennessee. This tiny digital silicon chip about the size of a dime, is capable of 'smelling' natural gas leaks in stoves, heaters, and other appliances. It can also detect dangerous levels of carbon monoxide. This device can also be configured to notify the fire department when a leak is detected. This nose chip should be commercially available within 2 years, and is inexpensive, requires low power, and is very sensitive. Along with gas detection capabilities, this device may someday also be configured to detect smoke and other harmful gases. By embedding this chip into workers uniforms, name tags, etc., this could be a lifesaving computational accessory. In addition to the future safety technology soon to be available as accessories are devices that are for entertainment and security. The LCI computer group is developing a Smartpen, that electronically verifies a user's signature. With the increase in credit card use and the rise in forgeries, is the need for commercial industries to constantly verify signatures. This Smartpen writes like a normal pen but uses sensors to detect the motion of the pen as the user signs their name to authenticate the signature. This computational accessory should be available in 1999, and would bring increased peace of mind to consumers and vendors alike. In the entertainment domain, Panasonic is creating the first portable hand-held DVD player. This device weight less than 3 pounds and has a screen about 6' across. The color LCD has the same 16:9 aspect ratio of a cinema screen and supports a high resolution of 280,000 pixels and stereo sound. The player can play standard DVD movies and has a hour battery life for mobile use. To summarize, in this paper we presented concepts related to the design and use of wearable computers with extensions to smart spaces. For some time, researchers in telerobotics have used computer graphics to enhance remote scenes. Recent advances in augmented reality displays make it possible to enhance the user's local environment with 'information'. As shown in this paper, there are many application areas for this technology such as medicine, manufacturing, training, and recreation. Wearable computers allow a much closer association of information with the user. By embedding sensors in the wearable to allow it to see what the user sees, hear what the user hears, sense the user's physical state, and analyze what the user is typing, an intelligent agent may be able to analyze what the user is doing and try to predict the resources he will need next or in the near future. Using this information, the agent may download files, reserve communications bandwidth, post reminders, or automatically send updates to colleagues to help facilitate the user's daily interactions. This intelligent wearable computer would be able to act as a personal assistant, who is always around, knows the user's personal preferences and tastes, and tries to streamline interactions with the rest of the world.

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타원곡선 암호시스템을 위한 GF(2$^{m}$ )상의 비트-시리얼 나눗셈기 설계 (Design of a Bit-Serial Divider in GF(2$^{m}$ ) for Elliptic Curve Cryptosystem)

  • 김창훈;홍춘표;김남식;권순학
    • 한국통신학회논문지
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    • 제27권12C호
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    • pp.1288-1298
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    • 2002
  • 타원곡선 암호시스템을 GF(2$^{m}$ )상에서 고속으로 구현하기 위해서는 빠른 나눗셈기가 필요하다. 빠른 나눗셈 연산을 위해선 비트-패러럴 구조가 적합하나 타원곡선 암호시스템이 충분한 안전도를 가지기 위해서는 m의 크기가 최소한 163보다 커야 한다. 즉 비트-패러럴 구조는 0(m$^2$)의 면적 복잡도를 가지기 때문에 이러한 응용에는 적합하지 않다. 따라서, 본 논문에서는 CF(2$^{m}$ )상에서 표준기저 표기법을 사용하여 모듈러 나눗셈 A(x)/B(x) mod G(x)를 고속으로 수행하는 새로운 비트-시리얼 시스톨릭 나눗셈기를 제안한다. 효율적인 나눗셈기 구조를 얻기 위해, 새로운 바이너리 최대공약수(GCD) 알고리즘을 유도하고, 이로부터 자료의존 그래프를 얻은 후, 비트-시리얼 시스톨릭 나눗셈기를 설계한다. 본 논문에서 제안한 나눗셈기는 0(m)의 시간 및 면적 복잡도를 가지며, 연속된 입력 데이터에 대하여, 초기 5m-2 사이클의 지연 후, m 사이클 마다 나눗셈의 결과를 출력한다. 제안된 나눗셈기를 동일한 입출력 구조를 가지는 기존의 연구 결과들과 비교 분석한 결과 칩 면적 및 계산 지연시간 모두에 있어 상당한 개선을 보인다. 따라서 제안된 나눗셈기는 적은 하드웨어를 사용하면서 고속으로 나눗셈 연산을 수행할 수 있기 때문에 타원곡선 암호화시스템의 나눗셈 연산기로 매우 적합하다. 또한 제안한 구조는 기약 다항식(irreducible polynomial) 선택에 있어 어떤 제약도 두지 않고, 단 방향의 신호흐름을 가지면서, 매우 규칙적이기 때문에 필드 크기 m에 대해 높은 유연성 및 확장성을 제공한다.였다. an extraction system, a new optical nonlinear joint transform correlator(NJTC) is introduced to extract the hidden data from a stego image in real-time, in which optical correlation between the stego image and each of the stego keys is performed and from these correlation outputs the hidden data can be asily exacted in real-time. Especially, it is found that the SNRs of the correlation outputs in the proposed optical NJTC-based extraction system has been improved to 7㏈ on average by comparison with those of the conventional JTC system under the condition of having a nonlinear parameter less than k=0.4. This good experimental results might suggest a possibility of implementation of an opto-digital multiple information hiding and real-time extracting system. 촉각에 있는 지각신경세포가 뇌의 촉각엽으로 뻗어 들어가 위의 5가지 신경연접중 어느 형을 형성하는지를 관찰하기 위하여 좌측 촉각의

임상실습 교육개선을 위한 일 실습지도자 활용모델 (preceptorship model)의 적용 및 효과에 관한 연구 -암센타, 재활센타, 중환자실 실습을 중심으로- (Application and Effectiveness of a Preceptorship for the Improvement of Clinical Education)

  • 이원희;김소선;한신희;이소연;김기연
    • 대한간호학회지
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    • 제25권3호
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    • pp.581-596
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    • 1995
  • Clinical practice in nursing education provides an opportunity for students, through the process of ap-plying theoretical knowledge to practice, and to learn nursing skills as well as being socialized into nursing and as such decrease the reality shock of actual nursing practice. Because of a shortage of nursing faculty, the job of achieving the objectives of the clinical practice had been turned over to the head nurses. This resulted in many problems, such as, unclear location of responsibilities and inadequate feedback from head nurses. Therefore this study was done to introduce and evaluate the use of preceptors as a way to minimize the above problems, and to maximize the achievement of the clinical practice objectives. Using an adaptation of Zerbe's (1991) three-tiered team model, clinical practice was done using a preceptor, a head nurse and a clinical instructor, each with different and well defined roles. The subjects of this study were 67 senior students of the College of Nursing of Y University in Seoul whose clinical practice in adult nursing was carried out between May 1, 1994 and December 8, 1994. There were 22 preceptors who had at least two years of clinical experience and who were recommended by their head nurses. They were given additional education on the philosophy and objectives of the College of Nursing, on communication skills, on the theory and practice of education, and on nursing diagnosis and education evaluation. The role of the preceptor was to work one-to-one with students in their practice. The role of the head nurse was to supervise and evaluate the preceptors. The role of the clinical instructor was to provide the education program for the preceptors, to provide ad-vice and suggestions to the preceptors and to maintain lines of communication with the college. With each of these roles in place, it was thought that the effectiveness and efficiency of the clinical practice could be increased significantly. To evaluate the effectiveness of the preceptorship, the three - tiered model, Lowery's Teacher Evaluation Opinion Form translated and adapted to Korea was used to measure student statisfaction. The Clinical Practice Compentency Evaluation Tool developed by Lee et ai was also used to measure student competencies. The results of this study are as follows 1. The satisfaction with clinical practice was higher with the introduction of the perceptors than it was before they were used. (t=-5.96, p=<.005) 2. The clinical practice competencies were higher with the introduction of the preceptors than it was before they were used(t=-5.l3, p<.005) 3. In order to analyze areas not measured by the quantitative tools additional analysis of the open questions was done. The results of this analysis showed that : 1) The students felt positive about their sense of security, confidence, handling of responsbility, and being systematic. They also felt positive about improvements in knowledge, opportunities for direct care, and socialization. 2) The students felt negative about the technical part of their role, lack of knowledge by the preceptor, unprofessional attitudes on the part of the preceptor, difficulty in the role of the professional nurse(student). 3) The preceptors felt positive about their responsibility, motivation, and relationship with the college. 4) The preceptors felt negative about their bur-den. Introduction of the preceptorship model will lead to change and improvement in the negative factors discussed above, solve problems in the present clinical education system, increase continuity in the education of the students, help with socialization of the students and motivation of the preceptors to up-grade their education and increase their confidence. These objectives must be obtained to further the development of professional nursing, and thus, making the preceptorship a reality is our job for the future.

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("황제내경소문(黃帝內經素問)" 중(中) 사혈(瀉血)에 관한 연구(硏究) (A Study on the Blood-Letting Therapy in Elementary Questions)

  • 이준근
    • 대한한의정보학회지
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    • 제14권1호
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    • pp.19-42
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    • 2008
  • Blood-Letting Therapy is a rational and ecological medical treatment by which we can heal most of the diseases by removing the static blood which precipitates in the blood vessel and blocks the flowing of blood. And the static blood is the generic term for the injurious, bad, dead and precipitated blood which is blocked the capillary vessel. The Yellow Emperor's Canon of Internal Medicine says that "the patient is treated with drugs internally and stone acupuncture externally. "In the old texts, the blood-letting therapy is mentioned as blood-letting, network vessel pricking, bloodletting, pricking, and arousing pulses etc and it is noted down as the method of network vessel pricking in 'On the Application of Needles' of Spiritual Pivot. Nine-pricking therapy, twelve-pricking therapy and five-pricking therapy are recorded in the methods of network vessel pricking and among them, the method of squeezing blood after pricking the affected part is explained as the network vessel pricking. There are four methods of network vessel pricking, pricking, picking, cluster needling and scatter-pricking and they are fluidly applied to the various symptoms of diseases. In 'On Discriminative Treating for Patients of Different Regions' in Elementary Questions, Ki-baek emphasizes "most of the local people, there are black in skin and loose in striate, and their diseases are mostly of carbuncle kind. It is suitable to treat the disease with stone therapy to prick with stone, so the stone therapy is transmitted from the east. "And in 'On the Corresponding Relation Between the Eum and Yang of Man and All Things' in Elementary Questions, when the Emperor asked Ki-Back, he answered "sthenia means the sthenia of evil, and deficiency means the deficiency of healthy energy. When the blood is sthenic, the evil should be discharged by pricking when out letting the blood; deficiency of vital energy is the asthenia of channels and network vessels, so the energy should drain from the channel which is not deficient, to replenish. "And in this case we can use the methods of 'Breaking out the static bloods', 'driving out the static bloods', blood-letting'. With this we can infer that the blood-letting therapy is made use of the important medical treatments from the ancient times. Especially in referring to the principles of treatment in The Yellow Emperor's Canon of Internal Medicine, it mostly alluded to acupuncture therapies and only eleven times to medicinal treatments. This is to verify that the blood-letting therapy formed the foundation of the medical art. In Dong's Therapy of Acupuncture-Moxibustion and Bloodletting, Dong Kyeong-Chang gave emphasis on the points that there must be extravasated bloods without exception in the serious illnesses which is old, unnatural, accompanying acute pains and so we can revive our body‘s sprit by circulating 'gi' and static blood piled up in the network vessel, regulating the weakness and strength, and controling the disharmony of the internal organs. The blood-letting therapy has effect on the orifice in emergency, such as fore draining, freeing network vessels, harmonizing gi and blood, relieving pain, dispersing swelling and concretion, sedation, resolving toxin as well as strengthening the heart, relieving itching. So it has distinguished effect on all kinds of medical treatment to the modern people. But by the change of social customs and the confucianism of confucius - it is widely spread on the period of North and South Dynasties, 'Wi' and 'Jin' in china and the period of the Three States in korea - The blood-letting therapy which was regarded as the most important medicinal treatment withered rapidly. And Confucius accentuated the importance of our body and all its members, loyalty and filial piety and banned any damage of our body under no circumstances. As a result of it, the therapy of blood-letting had a rapid decrease and barely kept itself in existence in both countries. What is worse, at the period of Japanese colonial rule of korea and our nation's founding of early stage, it has been withered by the high-handed policy to change Oriental Medicine into modern medical science. So the therapy of blood-letting barely kept itself in existence in some Buddhist temples. Another case, it has handed down as a old-fashioned quick fix in folk remedies. But all kinds of the contamination of heavy metals and the misuses of antibiotics are widely spread nowadays, which increased diseases of adult people and incurable diseases as modern society unavoidably made its way into a highly industrial society. To make us more miserable, the western medical science - the antibiotics and surgical operation medical science - already reveals itself into a limit. The necessity of a new medical science which can give a security to the patients who are suffering from the diseases of adult people and the incurable diseases is especially come into the force nowadays. In view of the results after bibliographically studying on the blood-letting Therapy in Elementary Questions of the Yellow Emperor's Canon of Internal Medicine, the blood-letting therapy has acted for the important Oriental medicinal science and has been clarified the prominent effects on the diseases of adult people and the incurable diseases. So it is regarded as an appropriate thing that we lay out a determined theory of the blood-letting therapy and of course prevent the unwanted side effects from inappropriate medicinal treatments, and make full use of clinic by elevating the curative value and that we win back our self-respect of medical treatment which is dominated from the western medical science and ultimately contribute to national medical welfare.

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