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- 저자 : 이상정(Sang Jeong Lee) (검색결과 353 건)
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A Compatible Variables Scheduling Algorithm for Register Allocation in Microprogram
이상정,임인칠,Lee, Sang-Jeong,Lim, In-Chil The Institute of Electronics and Information Engin 1987 전자공학회논문지 Vol.24 No.2
This paper proposes a compatible variables scheduling algorithm, which is the process to pack variables into same register without modifying program semantics, for efficient register allocation of microprogram. The algorithm constructs T-V matrix, obtains incompatible variable set and scheduling priority, and schedules compatible groups. By this algorithm, the number of compatible groups can be minimized. The algorithm was implemented with C language on VAX-11/780 computer. By applying the algorithm to practical microprograms, the effectiveness of the algorithm is verified.
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이상정(Sang-Jeong Lee) 세창출판사 2008 창작과 권리 Vol.- No.52
Collective management is the exercise of copyright and neighbouring rights by organizations acting in the interest and on behalf of the owners of rights. The Korean Copyright Act contains provisions concerning the collective management of copyright and neighbouring rights in the "Chapter 7 Copyright Management Services." The relevant legal provisions divide such services into two categories, namely "copyright trust services" and "copyrights agent or brokerage services". This distinction has important repercussions: Any person who intends to engage in a business as a trustee on behalf of the owner of the rights shall obtain a permit from the Minister of Culture, Sports and tourism. But Those who intend to engage in copyright management services only as an agent or brokerage shall report to the Minister as prescribed by the Presidential Decree. But I think this distinction is not adequate. I think we have a reason to regulate the service because it's a collective management service, not because it's a trust service. There is no need to regulate the service according to the nature of contract between the right holder and the service entity. For the purpose of regulation it's a wrong direction to divide such copyright management services into two categories-"copyright trust services" and "copyrights agent or brokerage services". We need to abolish this distinction. In case of copyright collective management, I think, government approval is needed. So the government approval itself for the collective management service need not to be changed or abolished. But the provision that any person who has operated copyright management services without obtaining a permit shall be punishable by imprisonment for a term of not more than one year or a fine of not more than ten million won(See §137 ⅳ) shall be abolished. Rather we shall provide as the German Law on Collective Rights Management: Anyone who engages in collective rights management, without having prior authorization to do so, is not entitled to claim any of the rights under the Copyright Act, even if rightsholders have entrusted him with rights management.
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연구논문 : 도시하천의 바람 특성 -서울 강남구 양재천을 대상으로-
이상정 ( Sang Jeong Lee ),이원보 ( Won Bo Lee ),김문성 ( Wen Cheng Jin ),이규석 ( Kyoo Seock Lee ) 한국환경영향평가학회 2012 환경영향평가 Vol.21 No.1
Global warming due to the climate change causes environmental problems such as urban heat island (UHI), air pollutant deposition, urban heavy rainfall, etc. Urban stream plays an important role on mitigating UHI as open space as well as an ecological corridor in urban area. In order to investigate the wind characteristics of urban stream in the case of Yangjae Stream at Daechi-dong, Gangnam-gu in Seoul, the wind direction and wind speed data were observed and analyzed using a propellor type RM-Young wind monitor. The results show that the prevailing wind direction was southwest. However, easterly wind is the prevailing one between 8:00 and 12:00. Strong wind whose Beaufort scale is four or more blew frequently from 12:00 to 18:00. In terms of seasonal frequency, the spring shows the highest frequency, then winter was the next.
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이상정(Lee, Sang Jeong) 세창출판사 2013 창작과 권리 Vol.- No.73
The Purpose of THE UNFAIR COMPETITION PREVENTION AND TRADE SECRET PROTECTION ACT('UCPA') is to maintain the order of fair trade by preventing the unfair competitive acts, such as unjustifiable use of other person's well-known trade marks and trade names in Korea and by preventing the infringements of other person's trade secrets. The 'UCPA' was amended recently by adding the provisions of supplementary general provision, the proof system of trade secret existence, the adjustment of penalty against the trade secrets infringement, the reporting awards system, etc. The highlight of this amendment is the adoption of the supplementary general provision against the misappropriation of the results of other's efforts. So the person whose business interests is injured or threatened by such acts may seek the court injunction and preventive order against that person, and also get the damage compensation. But in that case there is no criminal sanction. Only civil relief is permitted.
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Dynamic Substructuring 기법을 이용한 APR 1400 원자로 내부구조물의 동적 거동 고찰
이상정(Sang-Jeong Lee),박노철(No-Cheol Park),최영인(Youngin Choi),박영필(Young-Pil Park),김진성(Jinsung Kim),박찬일(Chanil Park),노우진(Woo-Jin Roh) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
In order to identify dynamic behavior of complex structure as nuclear reactor, vibration analysis is mostly conducted as using finite element method (FEM). If the structure is complicated, high computational cost and time is demanded at vibration analysis using FEM. After model reduction is fulfilled with using dynamic substructuring method, it is objective to decrease the computational cost and time at vibration analysis of complex structures in this study. With applying selecting method of mater degree of freedom (MDOF) whose validity was identified in previous study, accuracy of vibration analysis is guaranteed. We apply the method to APR 1400 nuclear reactor internals which are one of complex structures. Because the result of application shows that vibration analysis data from dynamic substructuring method are well matched with original method, we confirm the effect of Vibration analysis using dynamic substructuring method.
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이상정(Sang-Jeong Lee),전병찬(Byung-Chan Jeon) 한국정보과학회 2004 정보과학회논문지 : 시스템 및 이론 Vol.31 No.1·2
고성능 슈퍼스칼라 프로세서에서 값 예측(value prediction) 방식은 명령의 결과 값을 미리 예측하고, 이 후 데이타 종속 관계가 있는 명령들에게 값을 조기에 공급함으로써 이들 명령들을 모험적으로 실행하여 성능을 향상시키는 방식이다. 값 예측으로 성능을 향상시키기 위해서는 예측 실패 시에 효율적으로 복구하는 과정이 필수적이다. 본 논문에서는 값 예측 실패 시에 잘못 예측된 값을 사용하여 모험적으로 수행된 명령들만을 순차적으로 취소하고 복구한 후에 재이슈하는 값 예측 실패 복구 메커니즘(value misprediction recovery mechanism)을 제안한다. 제안된 복구 방식은 한번에 모든 종속명령들을 검색하지 않음으로써 파이프라인을 정지시키지 않는다. 즉, 파이프라인이 진행되는 순서에 따라 순차적으로 값 예측이 틀린 종속명령만을 선택적으로 취소하고 재이슈하여 불필요한 취소와 재이슈를 줄임으로써 값 예측 실패 시에 손실을 줄인다. Value prediction is a technique to obtain performance gains by supplying earlier source values of its data dependent instructions using predicted value of a instruction. To fully exploit the potential of value speculation, however, the efficient recovery mechanism is necessary in case of value misprediction. In this paper, we propose a sequential and selective recovery mechanism for value misprediction. It searches data dependency chain of the mispredicted instruction sequentially without pipeline stalls and adverse impact on clock cycle time. In our scheme, only the dependent instructions on the predicted instruction is selectively squashed and reissued in case of value misprediction.
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이상정 ( Sang Jeong Lee ) 서울대학교 법학연구소 2007 서울대학교 法學 Vol.48 No.1
In Korea computer programs are mainly protected by the Computer Programs Protection Act, even though listed as a protectable subject matter of copyright law. So computer programs are protected by sui generis legislation. But the contents of the Computer Programs Protection Act are similar to those of copyright law: the protection of computer programs is based on the mere fact of creation (automatic protection), and registration is not a necessary prerequisite. The term of protection is 50 years from the year following disclosure. The Computer Programs Protection Act excludes Programming languages (characters, signs and a system thereof as a means to express a program), Rules (a specific convention on the usage of programming language in a specific program) and Algorithms (a method of combining instructions and commands in a program) from protection. Exclusion of Algorithms from protection reflects the idea/expression dichotomy. Apart from being protected by the Computer Programs Protection Act, computer programs are also protected by the Patent Law. At first we protected computer programs which met the so-called Freeman-Walter-Abele test. But now we protected the Floppy Disk Claims and the computerized Method of Doing Business as in US and Japan. Even in Japan they regard the computer program as a thing itself. But the term of invention In Korea and Japan Patent Act is a little different from that of US. In Korea and Japan Patent Act the INVENTION means the highly advanced creation of technical ideas utilizing rules of nature. So I think computer programs are not inventions except those which are applied to some physical process or thing. Even though Computer Programs are protectable subject matter, patent protection gives rise to many difficulties as described in the chapter 6 of THE PATENT WARS written by FRED WARSHOFSKY. And cumulative protection also gives rise to many difficulties and contradictions. Because copyright system and patent system are different in many aspects: the philosophy, the requirements, the term of protection, the effect-having block effect or not, and so on. So adequate and appropriate system is needed. Even though we adopted the sui generis legislation, it is limited in form. Legislators have left a room which is filled by appropriate contents from the first. We have to seek the appropriate system. This paper recommends the modified SCPA Approach which is described in a Manifesto as a basic model. But this paper proposes the new act should replace the existing law, even though the Manifesto does not propose a new act should be a substitution of copyright and patent law.
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