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        • KCI등재

          내륙 differential ASF 측정을 통한 Loran-C 시각 정확도 향상

          이창복(Chang Bok Lee), 황상욱(Sang Wook Hwang), 이종구(Jong Koo Lee), 이영규(Young Kyu Lee), 이상정(Sang Jeong Lee), 양성훈(Sung hoon Yang) 한국항해항만학회 2016 한국항해항만학회지 Vol.40 No.1

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          본 연구에서는 내륙에서 수신한 로란 9930M 포항 송신국의 로란신호를 이용하여 Loran differential ASF를 측정하였고, 이를 통해 로란 신호의 시각동기 정확도를 향상시켰다. Differential ASF는 한국표준과학연구원(KRISS)의 UTC(KRIS) 기준 TOA 데이터에서 충남대학교와 국립해양측위정보원에 설치된 원자시계를 기준으로 동시에 측정된 TOA 데이터를 각각 차분함으로써 구하였다. 자기장 안테나를 이용한 충남대학교에서의 60분 평균 TOA 측정결과는 0.1 μs 이내의 변동성을 보였고 국립해양측위정보원에서의 TOA 측정결과는 0.05 μs 이내의 변동성을 보였다. 또한 충남대학교와 국립해양측위정보원에서의 60분 평균 differential ASF 측정결과는 수신국의 주변 환경 영향에 의해 최대 0.1 μs 정도까지 시각 변동성을 나타냈다. 따라서 UTC(KRIS)를 기준으로 측정한 TOA 데이터로 충남대학교와 국립해양측위정보원 측정 데이터를 각각 보상하면 differential ASF 변화가 상쇄되어 로란 신호를 이용한 시각동기 정확도를 10 ns 정도 이내로 향상시킬 수 있다. 그리고 세슘원자시계를 기준으로 포항 송신국 로란 신호의 기준위상과 KRISS에서의 로란 수신기의 출력 기준위상을 측정하여 두 지점 사이의 ASF는 약 3.5 μs로 나타났다. In this study we measured a differential ASF to improve the accuracy of time synchronization with the signal transmitted from Pohang 9930M Loran station. We obtained the differential ASF which is calculated from a difference of the TOA measurements between KRISS and Chungnam National University(CNU), and KRISS and National Maritime PNT Office respectively. The TOA measurement at KRISS was measured by UTC(KRIS) reference clock and other sites were measured by atomic clocks respectively. The time variations of differential ASF measurements at CNU and National Maritime PNT Office were within 0.1 μs and 0.05 μs respectively. And we found the time variations of 0.1 μs depending on the surrounding radio-wave environments from the differential ASF measurements of 60 minute moving averages. We can improve the accuracy of time synchronization of the local clock to within 10 ns by compensating the differential ASF through removing the common component of ASF. And we measured the absolute ASF between the Pohang transmit station and KRISS by the measurement technique of absolute time delay using a cesium atomic clock. The average ASF between two points is about 3.5 μs.

        • 미술품 창작과 예술의 자유에 관한 일고

          이상정(Lee, Sang Jeong) 세창출판사 2009 창작과 권리 Vol.- No.55

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          The atmosphere in which an artist creates should, ideally, be free of external constraints. So the Article 22 of the Korean Constitution prescribes "all citizens enjoy the freedom of learning and the arts". But there are a lot of censorship of the arts. A fundamental conflict arises between the government's legitimate interest in regulating political subversion and obscenity and the guarantee of freedom of arts. In Korea obscenity, McCarthyism(the violation of the National Security Law), flag desecration, defamation are good example. This paper study afore-mentioned area. In obscenity area, there are many cases. This paper contains the definition, the present rule, historical case -that is 'La maja desnuda' [known in English as The Naked (or Nude) Maja]. In the National Security Law area, this paper contains two cases- those are the 'National Liberation Movement' case and the 'Riceplanting' case. In the flag desecration area there are some cases in Korean society. But in the art creation part there is no case which is disputed in the court. So this paper introduce some American cases. In the area of defamation, this paper introduce the Silberman v. Georges case. As a conclusion this paper urges the freedom of art should be guaranteed. All censorship of arts must be abolished. Of course under the mask of arts, there may be some cases which are non-arts. But in the marginal case, the 'in dubio pro arte' principle must be abided by. When holding the Flag Protection Act of 1989 unconstitutional, the U.S. Supreme Court conclude that "punishing desecration of the flag dilutes the very freedom that makes this emblem so revered, and worth revering." That's the conclusion.

        • KCI등재

          제조물책임법과 개발위험의 항변

          이상정(Lee Sang Jeong) 성균관대학교 법학연구소 2007 성균관법학 Vol.19 No.2

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

            More than 5 years have passed since our Product Liability Act was enforced. The enactment of Product Liability Act means that the liability system based on the negligence shift to the liability system based on the defect. So many consumer supposed that there was the drastic change in the area of PL. But in reality there is little change. It"s because design defects and warning defects are primarily based on the negligence of producer. And even in the area of manufacturing defects there is little change. Before the enforcement of new act the producer was apt to be liable to the defects he made regardless of his fault or negligence. And Presumption of negligence was applied in many cases.<BR>  One of the consumer"s disappointments is the adoption of the "Development Risk" defense(the state-of-the-art defense). It"s prescribed in the § 4① ⅱ of our act. That is as follows:<BR>  Article 4 (Exemptions) ① In cases where Article 3 applies. the manufacturer. etc. shall not be liable as a result of Article 3 if he proves;<BR>  (1.)<BR>  2. that the state of scientific or technical knowledge at the time when the manufacturer, etc. delivered the product was not such as to enable the existence of the defect in the product to be discovered:<BR>  But I think that the adoption of the "Development Risk" defense is not adequate even though many industrial nations accept the state-of-the-art defense.<BR>  First of all It"s nearly impossible to find out "the state of scientific or technical knowledge at the time when the manufacturer. etc. delivered the product". Because Scientific knowability refers not to what in fact was known at the time. but to what could have been known at the time.<BR>  And the adoption of the "Development Risk" defense means that the human is the means of the development of science or technology. So "Development Risk" defense in our act must be deleted. But for the compromise of innovation and safety. this paper proposed. the compensation may be reduced when the producer observed carefully. warned the hazards and recalled them after delivering the products.<BR>  This paper ends with the phrases which were appeared in the "Beshada v. Johns-Manville Products Corp" judgement :<BR>  The concept of knowability is complicated further by the fact---that the level of investment in safety research by manufacturers is one determinant of the state-of-the-art at any given time.<BR>  By imposing on manufacturers the costs of failure to discover hazards, we create an incentive for them to invest more actively in safety research.

        • 디자인보호법의 발전방향에 관한 소고

          이상정 ( Lee Sang Jeong ) 한국지식재산연구원 2005 지식재산논단 Vol.2 No.2

          This is the study about how to revise our current design act. Our current design act consists of the substantial examination system(SES) and non-substantial examination system(NSES). From 1998 we have a dual system. We introduced the NSES for the short-term life cycled products. The rights conferred through SES and NSES are same: monopolistic right. So many designs without qualification have exclusive rights. Those are hindering the development of design industry. It must be changed. This paper propose the abolishment of dual system. But it does not mean to turn back to the pre-1998 system. It is out of date and inefficient for all designs to be examined substantially to be registered. Even though all designs should be registered to gain the design right, it need not be examined whether it fulfills the substantial requirement. If only formal and procedural requirements are fulfilled, it could be registered. But before the right-h이der enforce the right it must be undergone substantial examination. So substantial examination is pre-requite for the enforcement. It must be based on the request of right holder. The time of the request for the examination must be limited like patent law. The nature of right from registration is monopolistic and the right has a block effect. This paper opposed the two-tier system: opposition to the adoption of unregistered design right system(UDRS). The major problem is the uncertainty. As [Australian Law Reform Report] says a manufacturer may be uncertain whether his or her product is so similar that it will be taken to be a copy. And in a sense we have already UDRS. It is in the Unfair Competition Law and Copyright Law. Not common-place design is protected from so-called dead copy by Unfair Competition Law, and copyright law protect some designs from copying. So there is no need to introduce the UDRS into the Design Protection Act itself.

        • 컴퓨터시스템 : ILP 프로세서를 위한 성능측정 및 평가 시스템

          이상정(Lee Sang Jeong) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.8

          본 논문에서는 한 사이클에 여러 개의 명령들이 다중 이슈되어 명령어 수준에서 병렬처리되는 ILP 프로세서의 성능을 측정하고 평가하는 시스템을 개발한다. 개발되는 시스템은 C 컴파일러와 시뮬레이터로 구성된다. C 컴파일러는 C 소스 프로그램을 입력으로 받아 3-주소 코드형태의 중간언어를 생성한다. 생성된 중간언어는 ILP 프로세서의 환경 파라미터와 함께 시뮬레이터에 입력되어 시뮬레이션된 후 메모리 내용, 수행된 클럭 수 및 명령 트레이스, 수행된 명령들의 동적 빈도수, 분기명령의 예측률, profiling 정보 등을 생성한다. 개발된 성능측정 시스템의 동작 검증을 위하여 순차이슈 되어 정적으로 스케쥴링 되는 조건실행 방식의 성능과 분기처리 방식의 성능을 측정하여 분석한다. In this paper, a performance measurement and evaluation system for ILP(Instruction Level Parallelism) processors which issue multiple instructions and execute them in parallel is developed. The system consists of a C compiler and a simulator. The compiler takes C source programs as an input and generates 3-address style intermediate code. Then the simulator accepts the intermediate code and simulates it. The results of simulation are the contents of memory before and after simulation, the number of executed clocks, the trace and the dynamic count of executed instructions, the prediction hit ratio and profiling information for each branch instruction. To verify and understand the behavior of the system, the performance of predicated execution and one of branch schemes is measured and its results are analyzed.

        • 지적재산법과 소비자 보호

          이상정(Lee Sang Jeong) 세창출판사 2016 창작과 권리 Vol.- No.83

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          This paper studies on consumer related aspects of the Intellectual Property. Among intellectual property laws the trade mark law and unfair competition law, even though our law have some insufficiency to protect the consumer, are the consumer protection law in broad sense. On the contrary patent law and copyright law is not a consumer protection law. But consumer are a good deal influenced by the content and the enforcement of these laws. Especially copyright law directly influence the consumer in the era of digital and information society. So intellectual property law should be educated to the consumer and consumer organization keep watch on the intellectual property law not to impair the consumer interest. Moreover the consumer organization propose actively the enactment or revision of intellectual property law to protect the consumer.

        • 특허법 개정안에 대한 관견 -일본 특허법을 추종해서는 안 된다-

          이상정(Lee, Sang Jeong) 세창출판사 2015 창작과 권리 Vol.- No.79

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          The Revised Bill of Patent Law §2 ⅲ (a) is as follows: (a) in the case of an invention of a thing (including a computer program, etc., the same shall apply hereinafter), producing, using, assigning, etc. (assigning and leasing and, in the case where the product is a computer program, etc., including providing through an electric telecommunication line, the same shall apply hereinafter), exporting or importing, or offering for assignment, etc. (including displaying for the purpose of assignment, etc., the same shall apply hereinafter) thereof. 4. A “computer program, etc.” in this Act means a computer program (a set of instructions given to an electronic computer which are combined in order to produce a specific result, hereinafter the same shall apply in this paragraph) and any other information that is to be processed by an electronic computer equivalent to a computer program I do not agree on this revised bill. Because it is away from common sense: the program as such is not a thing. As the bill defined, a computer program is a set of instructions given to an electronic computer. The instructions are not things. And the greater parts of computer programs are not the highly advanced creation of technical ideas by which a law of nature is utilized. When patent act protect the program broadly, it is serious conflict with copyright law, which is the primary protection law of computer program. The bill is contrary to the global trends. Even in US, All computer programs are not protected by patent law. In the view of IP policy it is not recommendable.

        • 음란물의 저작물성

          이상정(Lee, Sang Jeong) 세창출판사 2015 창작과 권리 Vol.- No.78

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

          Korean copyright scholars and practitioners were nearly indifferent to the issue on whether obscene works be protected by copyright law until when Japanese and U.S. pornography producers claimed that the copyright of their pornography was infringed in Korea in 2009. From then on there were some debates and arguments on this issue. The majority of commentators and precedents seems to uphold a pro-copyrightability. This paper explores on this issue in the light of the theoretical aspects and policy based aspects. After exploration, this paper also concludes that the obscene works is entitled to copyright protection in spite of its obscene content.

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