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Measurement and Evaluation of Vibration of the Ship Propulsion Machinery (ISO 20283-4) (선박 추진기계의 진동 계측과 평가(ISO 20283-4))

  • Lee, D.C.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2009.10a
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    • pp.560-564
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    • 2009
  • This paper introduces measurement and evaluation of vibration of the ship propulsion machinery (ISO 20283-4). ISO 20283-2 for measurement of structural vibration on ships was finalized last year and ISO 20283-4 was drafted and reviewed by particulate ISO members now. As the importance and core field in ISO 20283-4, the torsional vibration of propulsion system for sea going vessels should be analysed in design stage and it should be confirmed by the its measurement during the sea trial. Criteria for evaluation of torsional loadings are defined by IACS (International Association of Classification Societies) UR M68. In this paper, the author introduced the important and controversial matters during the review of ISO 20283-4.

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Variability in the Viral Protein Linked to the Genome of Turnip Mosaic Virus Influences Interactions with eIF(iso)4Es in Brassica rapa

  • Li, Guoliang;Zhang, Shifan;Li, Fei;Zhang, Hui;Zhang, Shujiang;Zhao, Jianjun;Sun, Rifei
    • The Plant Pathology Journal
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    • v.37 no.1
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    • pp.47-56
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    • 2021
  • Plants protect against viruses through passive and active resistance mechanisms, and in most cases characterized thus far, natural recessive resistance to potyviruses has been mapped to mutations in the eukaryotic initiation factor eIF4E or eIF(iso)4E genes. Five eIF4E copies and three eIF(iso)4E copies were detected in Brassica rapa. The eIF4E and eIF(iso)4E genes could interact with turnip mosaic virus (TuMV) viral protein linked to the genome (VPg) to initiate virus translation. From the yeast two-hybrid system (Y2H) and bimolecular fluorescence complementation (BiFC) assays, the TuMV-CHN2/CHN3 VPgs could not interact with BraA.eIF4E.a/c or BraA.eIF(iso)4E.c, but they could interact with BraA.eIF(iso)4E.a in B. rapa. Further analysis indicated that the amino acid substitution L186F (nt T556C) in TuMV-UK1 VPg was important for the interaction networks between the TuMV VPg and eIF(iso)4E proteins. An interaction model of the BraA. eIF(iso)4E protein with TuMV VPg was constructed to infer the effect of the significant amino acids on the interaction of TuMV VPgs-eIF(iso)4Es, particularly whether the L186F in TuMV-UK1 VPg could change the structure of the TuMV-UK1 VPg protein, which may terminate the interaction of the BraA.eIF(iso)4E and TuMV VPg protein. This study provides new insights into the interactions between plant viruses and translation initiation factors to reveal the working of key amino acids.

Effects of iso-Butanol on Photosynthetic Electron Transport Activity in Isolated Spinach Chloroplasts (시금치(Spinacia oleracea L.) 엽록체의 광합성 전자전달 활성에 미치는 iso-Butanol의 영향)

  • 박강은
    • Journal of Plant Biology
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    • v.35 no.3
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    • pp.247-252
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    • 1992
  • The effect of iso-butanol on the electron transport rate of PS I and PS II was investigated in isolated spinach chloroplasts. In photosystem I, the rate of electron transport increased in the presence of 1 to 4% of isobutanol but decreased in 5 to 9% of iso-butanol. But in photosystem II, the rate of electron transport decreased when treated with 0.2 to 1% of iso-butanol. The inhibitory effect of isomers of butanol on PS II electron transport rate increased in the order of 2-butanol, tert-butanol, iso-butanol and I-butanol. This means that PS II activity was affected according to the arrangement of carbon atoms in butanol. The inhibitory effect of iso-butanol reduced when DPC was added in the solution. This means that iso-butanol affects PS II reduction side of thylakoid membrane primarily. The inhibitory effect of iso-butanol was reduced when $Mn^{2+},\;C^{2+}$ or BSA were added in the solution. PS II activity was restored when 1% iso-butanol treated chloroplast solution was diluted to twentyfold or when $Mn^{2+},\;C^{2+}$ or BSA was added to the diluted solution. However, the SDS-PAGE banding pattern of thylakoid membrane proteins was similar even in 2% iso-butanol treated chloroplasts and the control ones. Only in 5% iso-butanol treated chloroplasts these bands were very weak. These observations suggest that low concentrations of iso-butanol releases manganese and calcium ions from chloroplasts and inhibits the electron transport system. This inhibitory effect can be reversible in low concenterations but in high concentrations the inhibitory effect of iso-butanol become irreversible.rsible.

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Synthesis of Indoprofen (Indoprofen의 합성)

  • 최홍대;강병원;마정주;윤호상
    • YAKHAK HOEJI
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    • v.35 no.4
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    • pp.314-318
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    • 1991
  • A convenient method for the synthesis of indoprofen, which is a potent antiinflammatory agent, w described. Ethyl $\alpha$-(4-aminophenyl)propionate was prepared by nitration of ethyl $\alpha$-phenylpropionate, followed by reduction. Ethyl $\alpha$-[4-(1, 3-dioxo-2-iso-indolinyl)phenyl]propionate was obtained from condensation reaction of phthatic anhydride and ethyl $\alpha$-(4-aminophenyl)propionate. Indoprofen was prepared by reduction of ethyl $\alpha$-[3-(1, 3-dioxo-2-iso-indolinyl)phenyl]propionate with zinc dust-acetic acid, followed by hydrolysis of the resultant ethyl $\alpha$-[4-(1-oxo-2-iso-indolinyl)pheriyl]propionate.

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Gamma-Radiolysis of Carbon Dioxide (V). Radiolysis of Carbon Dioxide-Alcohol Mixtures (이산화탄소와 알코올류의 혼합물에 대한 방사선 분해반응에 관한 연구)

  • Choi Sang Up;Pyun Hyung Chick;Jin Joon Ha
    • Journal of the Korean Chemical Society
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    • v.35 no.1
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    • pp.3-15
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    • 1991
  • The gaseous mixtures of iso-propanol of 10 torr with carbon dioxide of 0∼1990 torr were irradiated with Co-60 gamma radiation up to 50 kGy, and the products such as carbon monoxide, acetone, methane, ethane, C$_3$H$_a$, C$_4$H$_b$ and tert-butanol were analyzed by gas chromatography. G(CO) value of 4 was obtained from the gas mixtures containing more than 490 torr of carbon dioxide. The production rates of the organic products and the decomposition rate of iso-propanol increased linearly with the pressure of carbon dioxide, and G(-iso-Propanol) and G(Acetone) values increased by 4 and 2, respectively, with each 10 torr increment of carbon dioxide pressure. The mechanisms of the radiolytic decomposition of iso-propanol and the production of carbon monoxide and organic materials are discussed on the basis of the experimental results of the present study.

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Proposal : Improvement of Testing Frontier Capability Assessment Model through Comparing International Standards in Software Product and Software Testing Process Perspective (소프트웨어 제품과 프로세스 관점에서 국제표준과 비교를 통한 테스팅 프론티어 역량평가 모델 개선 방안)

  • Yoon, Hyung-Jin;Choi, Jin-Young
    • KIISE Transactions on Computing Practices
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    • v.21 no.2
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    • pp.115-120
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    • 2015
  • The Testing Frontier Capability Assessment Model (TCAM) is based on ISO/IEC 9126, TMMi and TPI. Since ISO/IEC 9126, TMMi and TPI were made over 10 years ago, TCAM faces the problem that it can not assess and analyze the capability of small businesses that employ new software development methods or processes, for example Agile, TDD(Test Driven Development), App software, and Web Software. In this paper, a method to improve the problem is proposed. The paper is composed of the following sections: 1) ISO/IEC 9126, ISO/IEC 25010 and ISO/IEC/IEEE 29119 part 2 review 2) TCAM review 3) software product quality perspective comparison, and analysis between ISO/IEC 9126, ISO/IEC 25010 and TCAM 4) comparison, and analysis between ISO/IEC/IEEE 29119 part2 and TCAM and 5) proposal for the improvement of TCAM.

Applying the International Standard Appraisal Methodologies of ISO 15489-1 and ISO/TR 21946 (기록 평가에 관한 국제표준의 적용방안 분석: ISO 15489-1과 ISO/TR 21946을 중심으로)

  • Jun, Bobae;Seol, Moon-won
    • Journal of Korean Society of Archives and Records Management
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    • v.19 no.4
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    • pp.115-137
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    • 2019
  • A significant change in the ISO 15489-1:2016 is the appraisal of records becoming one of the key procedures in managing current records. In November 2018, ISO/TR 21946 (Information and Documentation - Appraisal for managing records) was published as the international standard for the appraisal of records, explaining the methodology for the application of the concepts and principles of appraisal in ISO 15489-1. As such, the concept of appraisal and the characteristics of the contents presented in these international standards were examined in this paper. In particular, the appraisal methodologies of ISO/TR 21946 and how it can be applied to the Korean records management environment were investigated by analyzing the appraisal process proposed in ISO/TR 21946 at each step and applying the process to Korean university cases. Moreover, this paper is expected to be the basis of improving the understanding of new international standards for the appraisal of records and finding ways to improve records management and appraisal systems in Korea.

Development of Lifecycle Support Modules for the ISO 10303-AP241; Generic model for Lifecycle support of AEC facilities (AEC 시설물 공통모델(ISO 10303-AP241)의 생애주기 지원 모듈 개발)

  • An, Kyung-Ik;Kim, In-Han
    • Korean Journal of Computational Design and Engineering
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    • v.13 no.5
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    • pp.342-351
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    • 2008
  • ISO 10303-AP241 is an Application Protocol of ISO 10303, which specifies the representation of AEC facility's life cycle information. The Working Draft of AP241 was submitted to the TC184/SC4 of ISO in July, 2007 by Korean team of ISO TC184/SC4/WG3. This paper introduces the currently developed draft Ap241 core model, and describes the life cycle support modules which are required to represent the life cycle information of AEC facilities. The draft core model is developed as a generic data model which is useful as a basis for implementation in a data warehouse. This core model could be used in combination with reference data such as PLCS RDL, Gellish table and RDL of ISO 15926. These concepts already exists in ISO 10303-AP221, AP239 and ISO 15926. In order to support maintenance and feedback of operational information concerning the AEC facilities, the AP241 team re-used many modules from AP239, and developed various STEP Application Modules which are adapted from the ISO 15926.

CC 평가·인증 기술 ISO/IEC 국제 표준화 동향

  • Lee, Kwangwoo;Lee, Su Yeon;Hwang, Hyundong;Sung, Jungho;Choi, Heebong
    • Review of KIISC
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    • v.31 no.4
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    • pp.45-53
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    • 2021
  • 공통평가기준(CC, Common Criteria)의 국제 표준인 ISO/IEC 15408, ISO/IEC 18045는 정보보호제품에 구현되어 있는 보안 기능의 보증과 안전성을 시험하기 위한 평가 기준을 제시하는 국제 표준으로 정보보호제품에 대한 국제적인 신뢰성을 보장할 수 있도록 기준을 제시하고 있다. 특히 ISO/IEC 15408, ISO/IEC 18045는 ISO/IEC 27000, ISO/IEC 19790과 함께 ISO/IEC JTC 1/SC 27을 대표하는 국제 표준이다. 본 논문에서는 ISO/IEC JTC 1/SC 27/WG 3 작업반에서 개정을 진행하고 올해 말에 출판 예정인 ISO/IEC 15408 및 ISO/IEC 18405의 주요 변경 내용 및 신규 개념에 대해 설명하고, 최근 WG 3 작업반에서 추진하고 있는 국제 표준화 활동 현황 및 주요 현황을 소개하고자 한다.

The Impact of Implementation of ISO9000: 2000 on Technology Improvement: A Case study

  • Shahalizadeh, Mohammad;Mostabseri, Mohammad
    • Industrial Engineering and Management Systems
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    • v.7 no.3
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    • pp.228-244
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    • 2008
  • ISO9000 set of standards has been widely applied in Iranian Automotive manufacturing industry. Regarding the effects of TQM and ISO9000 set of standards various studies have been conducted and different quantitative conclusions have been made. Due to lack of quantitative information, in many of the cases, using qualitative information becomes the best option. The qualitative nature of data in such cases, requires qualitative analysis methods that might lead to some challenging computational issues. This paper examines the impact of ISO9000: 2000 certification and its perceived benefits for an automotive manufacturing company. Using an empirical approach, the paper seeks to ascertain if certification has indeed improved the performance of the company. Our null hypothesis rotates around the effect of ISO9000: 2000 on the 4W's of an enterprise. To carry out the research, first we developed a couple of questionnaires including all criteria of ISO9000 and 4W's. Second, the questionnaires were discussed with two researchers knowledgeable in the field, and then submitted to the quality practitioners and executives of Iran Khodro Enterprise-a leading company in Iranian automotive manufacturing industry. Finally the null hypothesis was tested and the technology improvement dimensions were ranked through nonparametric tests. The results illustrated a reasonable cause and effect relationship, suggesting that ISO9000: 2000 has positive effect on the 4W's of company result. In this work we investigate the effect as technology improvement viz., the improvement of techno-ware, human-ware, info-ware, and organ-ware.