• Title/Summary/Keyword: Control statement

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A Study on State Synthesis Algorithm for ICSC(InCheon Silicon Compiler) (ICSC(InCheon Silicon Compiler)를 위한 상태 합성알고리즘에 대한 연구)

  • Cho, Joong-Hwee
    • Proceedings of the KIEE Conference
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    • 1988.07a
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    • pp.521-524
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    • 1988
  • This paper describes BSDL(Behavioral/Structural Description Language), CDTF(Control Data Text File) and state synthesizer built for use in ICSC(InCheon Silicon Compiler). BSDL describes structral and behaviral specifications of an ASIC(Application Specific IC) for digital system design. ICSC's paser generates CDTF consists of if-then-else, arithmetic and data transfer statement according to each BSDL statement. State synthesizer generates CCG(Control Constraint Graph) in consideration of execution of statement and generates VCG (Variable Constraint Graph) in consideration use of variable generation and use of variable. Also, it involves allocating algorithm operation nodes in the data path and the control path to machine states with minimum state number and as small area as possible.

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A Study on Criteria for Handling Hazardous Chemicals (유해화학물질별 구체적인 취급기준 체계 마련 연구)

  • Hwang, Man Sik;Im, Ji Young;Jeon, Da Young;Song, Ki Bong;Lee, Sang Mok;Ryu, Ji Sung;Lee, Ji Ho
    • Korean Journal of Hazardous Materials
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    • v.6 no.2
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    • pp.1-6
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    • 2018
  • The use of chemicals to enhance and improve life is a widespread practice worldwide. But alongside the benefits of these products, there is also the potential for adverse effects to people or the environment. Thus, If anyone handles hazardous chemicals, they should adhere to specific criteria for hazardous chemicals. This study used hazard statement(H-code) and precautionary statement(P-code) to set specific criteria for handling chemicals. According to the UN GHS, hazard statement means a statement assigned to a hazard class and category that describes. And a precautionary statement is a phrase which describes recommended measures that should be taken to minimize or prevent adverse effects resulting from exposures to a hazardous product, or improper storage or handling of a hazardous product. The study suggests the treatment criteria(Public Notice) of 785 types of hazardous chemicals managed by the Chemical Control Act.

A Study on Using the Role Indicators to Improve the Description Methods of the Statement of Responsibility (책임표시의 기술방식 개선을 위한 역할어의 활용 방안 연구)

  • Park, Zi-Young
    • Journal of the Korean Society for information Management
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    • v.28 no.3
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    • pp.65-82
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    • 2011
  • Statement of responsibility in bibliographical records plays a key role in clarifying intellectual responsibility of the work, and it also plays a role in making up access points. However, cataloging rules for the statement of responsibility mostly deal with the distinction between the principal role and minor roles. This becomes a problem because the responsibility type itself is more important than the order of the types. For this reason, in this paper I will explore improvements of the description methods of statement of responsibility by organizing the role indicators. Namely, using the role indicators more effectively than the current description methods do, we can collocate the dispersed statements of responsibilities. The role indicators can also be used for an author facet in information retrieval and can provide additional information for authority control.

On the Program Conversion and Conditional Simplification for VECTRAN Code (백트란 코드화를 위한 프로그램 변환과 단순화)

  • Hwang, Seon-Myeong;Kim, Haeng-Gon
    • The Transactions of the Korea Information Processing Society
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    • v.1 no.1
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    • pp.38-49
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    • 1994
  • One of the most common problems encountered in the automatic translation of FORTRAN source code to VECTRAN is the occurrence of conditional transfer of control within loops. Transfers of control create control dependencies, in which the execution of a statement is dependent on the value of a variable in another statement. In this paper I propose algorithms involve an attempt to convert statements in the loop into conditional assignment statements that can be easily analyzed for data dependency, and this paper presents a simplification method for conditional assignment statement. Especially, I propose not only a method for simplifying boolean functions but extended method for n-state functions.

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Fault Analysis Attacks on Control Statement of RSA Exponentiation Algorithm (RSA 멱승 알고리즘의 제어문에 대한 오류 주입 공격)

  • Gil, Kwang-Eun;Baek, Yi-Roo;Kim, Hwan-Koo;Ha, Jae-Cheol
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.19 no.6
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    • pp.63-70
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    • 2009
  • Many research results show that RSA system mounted using conventional binary exponentiation algorithm is vulnerable to some physical attacks. Recently, Schmidt and Hurbst demonstrated experimentally that an attacker can exploit secret key using faulty signatures which are obtained by skipping the squaring operations. Based on similar assumption of Schmidt and Hurbst's fault attack, we proposed new fault analysis attacks which can be made by skipping the multiplication operations or computations in looping control statement. Furthermore, we applied our attack to Montgomery ladder exponentiation algorithm which was proposed to defeat simple power attack. As a result, our fault attack can extract secret key used in Montgomery ladder exponentiation.

Implementation technique of execution time predictable real-time mechanism control language (실행시간 예측가능한 실시간 메카니즘 제어언어의 구현기법)

  • 백정현;원유헌
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.22 no.6
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    • pp.1365-1376
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    • 1997
  • In this paper, we designed real time mechanism control language and proposed execution time analysis technique. It was impossible to handle real-time mechanism control programs like programmable controller, numerical controller, distributed control system and robot controller with general purpose programming languages and operating systems because they have to process electric signals generated by thousands of sensors at the same at the same time and in real time. So we made it possible to predict plausibility of time constraint constructs of tiem constraint construct of a real time application program at compilation time by adding time constraint constructs and mechanism synchronization structure to conditional statement and iteration statement of a programming language and developing execution time analysis technique.

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Design and implementation technique of real-time mechanism control language for programmable automation equipment (프로그래밍형 자동화기기를 위한 실시간 메카니즘 제어언어의 설계 및 구현기법)

  • 백정현;원용훈
    • Journal of the Korean Institute of Telematics and Electronics C
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    • v.34C no.11
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    • pp.29-38
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    • 1997
  • As the trend of the automation is increasing, the usage of the programmable automation equipments like programmable controller(PC), numerical controller(NC), distributed control systems(DCS) and robot controller is greatly expanding in the area of the industrial equipments. But the development of the programing language for the programmable automatic equipment is rarely accomplished. In this paper, we propose design and implementation technique of the real-time mechanism control language by adding time constraint constructs and timing analysis constructs ot conditional statement and iteration statement of a programming language. Moreover, we made it possible to predict plausibility of time constraint constructs of a real time application program at compilation time and developing execution time analysiss technique.

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Adaptive Output Feedback Speed Control of Induction Motorswith Uncertain Rotor Resistance and Load Torque

  • Hwang, Young-Ho;Yang, Hai-Won;Kim, Hong-Pil;Kim, Hyung-Joong
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.64.4-64
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    • 2002
  • $\textbullet$ Contents 1 Introduction $\textbullet$ Contents 2 Problem Statement $\textbullet$ Contents 3 Adaptive Output Feedback Control Design $\textbullet$ Contents 4 Stability analysis $\textbullet$ Contents 5 Simulation Result $\textbullet$ Contents 6 Conclusions

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A Study on the Analysis of Publicly Announced Combined Financial Statements and their Improvement Points (공시된 결합재무제표의 분석과 게선 방향에 관한 연구)

  • Park Sang-Bong
    • Management & Information Systems Review
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    • v.6
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    • pp.137-162
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    • 2001
  • Our business conglomerates are sharing their fates economically because of mutual debt warranty among their own affiliates and excessive financial loans. For this reason, it is inevitably restrictive to obtain the whole information on such conglomerates by individual and consolidated financial statements. To solve this problem, the system of combined financial statement was introduced through modifications of the Act of the outside audit of corporations in 1988. As a result, 15 out of this nation's 30 major business conglomerates prepared and submitted their own combined financial statements. In this paper, all financial statements are grouped into financial and non-financial parts, based on characteristics of business control and combined financial statement. Then the business size, financial rate and internal transactions for each of the conglomerates are analyzed, based on which problems of the combined financial statement as announced publicly are clarified. For the system, this study suggests improvement points such as a sufficient publication of any possible situations and interest coordination caused between the date of business settlement and that of preparing combined financial statements by applying principles of sharing to the evaluation of valuable instrument papers for investment and by determining the amount, 5% accounting for the total amount of debt warranty, foreign exchange assets and debts.

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Hospital-Acquired Measles: A Systematic Review Using the Outbreak Reports and Intervention Studies of Nosocomial Infection (ORION) Statement

  • Erdenetuya Bolormaa;Cho Ryok Kang;Han Ho Kim;Young June Choe
    • Pediatric Infection and Vaccine
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    • v.31 no.1
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    • pp.64-74
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    • 2024
  • Purpose: Despite the recent increased number of nosocomial measles, the outbreak investigation reports are not usually standardized, thus posing unclear understanding of magnitude of its public health burden. We used the Outbreak Reports and Intervention Studies of Nosocomial Infection (ORION) statement, to compare nosocomial outbreaks and synthesize evidence to prevent hospital transmission of measles. Methods: A PubMed, Web of Science, Embase, Scopus, and Cochrane search in English, using the medical subject headings "measles," "nosocomial," "hospital," and "healthcare," was performed. We evaluated the quality of outbreak reports of nosocomial measles infection worldwide using the ORION statement findings and recommendations. Results: We reviewed 24 studies in accordance to the ORION statement. Measles transmission in healthcare settings is a significant burden on the morbidity, mortality, and economy of measles. The healthcare workers' booster vaccination guidelines should be monitored and enhanced during the post-elimination period of measles. The outcomes of infections must be explicit for outbreak reports. Conclusions: This study identified the epidemiological and clinical characteristics of nosocomial measles infections and provided strong evidence for infection control policies in hospitals.