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Development of Damage Mechanism Information System for Equipments in Refinery Industry (정유산업 설비의 손상기구 정보 시스템 개발)

  • Choi J.W.;Seo J.M.;Choi S.C.;Yoon K.B.
    • Journal of the Korean Institute of Gas
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    • v.10 no.1 s.30
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    • pp.32-37
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    • 2006
  • Major components of refinery plants are exposed to various damage mechanisms depending on the operation condition, material selection and kinds of internal fluid. Inspection techniques and damage monitoring methods should be selected considering the damage mechanisms of the components. Hence, it is quite necessary to have an information system with a standardized database on the various damage mechanisms. In this study a damage information system with contents on the damage mechanisms included in API 571 code was developed. Concept of the screening table employed in USA and Japan was also adopted to identify the probable damage mechanisms from the information on operating temperature, internal fluid, metal used for the component and stress condition. This system can be used before the risk based inspection planning to identify key damage mechanisms involved.

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Freshness Extension of Table Grape 'Sheridan' by Packaging Methods (포장방법에 따른 'Sheridan' 포도의 신선도 유지 효과)

  • 박형우;김동만
    • Food Science and Preservation
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    • v.6 no.3
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    • pp.260-263
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    • 1999
  • This study was measured weight loss, total ascorbic acids, titratable acidity and soluble solids contents to investigate the effect of EPS(expended polystyrene foam) box. double wall corrugated paperboard box and LDPE film pouches during storage at 25$^{\circ}C$. The rate of weight loss was 5.7% in corrugated paperboard box after 10 days. but those of 20LD, 40LD film and EPS box were 1.0, 0.8, and 0.9%, respectively. Total ascorbic acid content and titratable acidity of EPS box was 15.0% and 24.4% higher than that in corrugated paperboard box, but the obvious differents were not observed among the LDPE film pouches and EPS box. The titratable acidity was decrease during storage, but total soluble solids content was slightly increase. Overall appearences of LDPE pouches and EPS box were boner than those of corrugated paperboard box.

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Users' Perception on Theses and Dissertation Services (학위논문 이용현황과 활성화 방안에 관한 연구)

  • Shin, Yu-Ri;Chung, Eun-Kyung
    • Journal of Information Management
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    • v.40 no.1
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    • pp.29-46
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    • 2009
  • Theses and Dissertation(TD) have been considered one of valuable scholarly resources, while there have existed some limitations to collect, organize, and provide them. The purpose of this study is to investigate users' perception on six TD services from five institutions and to propose improvement strategies. Six TD services includes National Library, National Assembly Library, RISS, dCollections, NDSL, and Council of Theses and Dissertation Common Use. Based on the survey results from 151 users, the findings of this study identified that National Assembly Library and RISS were preferred by users. In addition, users preferred keyword, full text, department, abstract, table of contents, as well as title and author over other bibliographic information. More importantly, users needs were placed on whether specific TD services provide full text or not. In case that is not possible to provide full text, users have a preference for full text link information. As a result, in order to improve the TD services, service promotion activities, diverse access points, and full text provision are desirable.

EAST: An Efficient and Advanced Space-management Technique for Flash Memory using Reallocation Blocks (재할당 블록을 이용한 플래시 메모리를 위한 효율적인 공간 관리 기법)

  • Kwon, Se-Jin;Chung, Tae-Sun
    • Journal of KIISE:Computing Practices and Letters
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    • v.13 no.7
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    • pp.476-487
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    • 2007
  • Flash memory offers attractive features, such as non-volatile, shock resistance, fast access, and low power consumption for data storage. However, it has one main drawback of requiring an erase before updating the contents. Furthermore, flash memory can only be erased limited number of times. To overcome limitations, flash memory needs a software layer called flash translation layer (FTL). The basic function of FTL is to translate the logical address from the file system like file allocation table (FAT) to the physical address in flash memory. In this paper, a new FTL algorithm called an efficient and advanced space-management technique (EAST) is proposed. EAST improves the performance by optimizing the number of log blocks, by applying the state transition, and by using reallocation blocks. The results of experiments show that EAST outperforms FAST, which is an enhanced log block scheme, particularly when the usage of flash memory is not full.

The Impact of Privacy Policy Layout on Users' Information Recognition (사용자 인지 제고를 위한 개인정보 보호정책 알림방식의 비교 연구)

  • Ko, Yumi;Choi, Jaewon;Kim, Beomsoo
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.24 no.1
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    • pp.183-193
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    • 2014
  • Korean personal data(information) protection law requires privacy policies post on every website. According to recent survey results, users' interests on these policies are low due to these policies' low readability and accessibility. This study proposes a layout that effectively conveys online privacy policy contents, and assesses its impact on information understandability, vividness, and recognition of users. Studies on privacy policies and layouts, media richness theory, social presence theory, and usability are used to develop the new layered approach. Using experiments, three major layouts are evaluated by randomly selected online users. Research results shows that information understandability, vividness, and recognition of privacy policies in the revised-layered approach are higher than those of in the text-only or table-based layouts. This study implies that employing visual guides like icons on privacy policy layouts may increase users' interest in those policies.

Developing Subject Headings for Children's Picture Books based on A to Zoo (어린이 그림책을 위한 주제명표 개발 연구: 『A to Zoo』를 바탕으로)

  • Park, Ziyoung
    • Journal of the Korean Society for information Management
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    • v.29 no.4
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    • pp.251-271
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    • 2012
  • Subject headings support the effective access of children's picture books. However, it is difficult to select subject terms from titles or table of contents in children's picture books because of their relatively little textual information. Therefore, it is necessary to assign subject terms to each picture book. However, it is not adequate to use general subject headings because the types and levels of general subject headings are different from special subject headings for the children's materials. For this reason, this study aims to develop subject headings for children's picture books. The subject terms in A to Zoo were selected, and the selected terms were translated into Korean and modified for the Korean culture and language. Other reference books, such as Elementary Korean Dictionary, were also used to determine adequate terms for children. The resulting subject headings were assigned to the recommended picture books for children and used to search by subject, browse, and recommend books.

A Design and Implementation of IRDS-based Repository on Distributed Object Environment (분삭객체 환경에서의 IRDS 기반 정보저장소 설계 및 구현)

  • Yeom, Tai-Jin;Park, Jae-Hyoung;Li, Zi;Kim, Ki-Bong;Jin, Seong-Il
    • The Transactions of the Korea Information Processing Society
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    • v.6 no.6
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    • pp.1433-1446
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    • 1999
  • A repository s a system for management not only simple information using database but also complex and various information resources. a standard for implementation of a repository is now IRDS, but is does not support distributed-object environment. Therefore, in this paper, we design and implement IRDS-based repository on distributed-object environment. For implementation, we use ISO IRDS as a repository supporting object-oriented concepts, and choice the CORBA to support the distributed-object technology. Implemented contents are metadata table and service interface based on core functionality to be proposes at IRDS, and window-based user interface to use them, Also, we apply it to the workflow management system and test its practical usefulness.

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A Study on Brand Definition - Focusing on etymology and institutional perspective - (브랜드의 정의에 관한 고찰 - 어원과 제도적 관점을 중심으로 -)

  • Park, Bo Ram
    • Design Convergence Study
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    • v.16 no.1
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    • pp.203-216
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    • 2017
  • There are many definitions around brand. It complexify academic literature. Thus, this study collected meaningful definitions among many statements about brand and analyzed and classified them by available perspectives. This is especially necessary contents in domestic brand study, which is short of concept research about brand. Various literatures are refereed to brand definition introduction. But to etymological definition, several European linguistic theses are deeply reviewed and to institutional definition, wide range of information such as history, law and society is refereed. Total brand definitions are classified in . It is divided into 2 parts which are non-commercial context (etymological and institutional definition) and commercial context (producer, customer and the relation or interaction between producer and customer). In etymological definition, the word origin is clear word 'brandr' which means 'burning wood' and cattle-brand made this 'brand'. In legal definition, legal and institutional meaning of 'trademark' is examined. Etymological definition and institutional definition are fundamental and lexical definition which show brand history. These are foundation stones in brand studies.

Nutritional Properties, as Food Resources for Menu Development, of Cubed Snailfish, Shaggy Sea Raven, and Two Kinds of Wild Vegetables that are Staple Products in Samcheok (삼척지역 특산물인 곰치, 풍덕구이, 곰취, 곤드레의 향토식품 소재화를 위한 영양적 특성 연구)

  • Surh, Jeong-Hee;Kim, Jong-Ok;Kim, Mi-Hyun;Lee, Jae-Choel;Yang, Hee-Wan;Lee, Byung-Yong;Kim, Mi-Young;Yun, Sun-Ju;Jeong, Hye-Ryeon
    • Korean journal of food and cookery science
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    • v.25 no.6
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    • pp.690-702
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    • 2009
  • Liparis tessellatus(cubed snailfish), Hemitripterus villosus(shaggy sea raven), Ligularia fischeri, and Cirsiu setidens, which are staple products in Samcheok, were studied as food resources for the development of a representative local menu. Thus, their nutritional compositions were analyzed, and the resulting values were used to assess the nutritional characteristics of the newly-developed menu. In Liparis tessellatus and Hemitripterus villosus, the organic components including protein and fat tended to be lower than the corresponding values referred to as the 'Seventh Revision Food Composition Table' (2006), which was presumably linked to the spawning period of the fish. The contents of Zn, Cu, and Mg, which are nutritionally important even though the consumption of these minerals by Koreans is not sufficient, were determined to 0.5, 0.2, and 34.3 mg/100 g for Ligularia fischeri, and 26.2, 1.1, and 147.7 mg/100 g for dried Cirsiu setidens. Cirsiu setidens cultivated in Samcheok contained noticeably higher amounts of calcium, zinc, and iron, and its calcium level was more than an order of magnitude higher than that provided by the Food Composition Table. This might be associated with the fact of that Samcheok is abundant in lime which consists of calcium-containing inorganic materials. n-3 fatty acids including docosahexaenoic acid(DHA) accounted for 21% and 13% of the total fatty acids, for Liparis tessellatus and Hemitripterus villosus, respectively, and the major amino acids were glutamic acid, aspartic acid, glycine, and alanine for both fish. One of the newly developed menus, Cirsiu setidens hae-jang-gook, was nutritionally superior to the corresponding menu that used dried radish leaves, a typical ingredient in hae-jang-gook, in terms of the protein, iron, and zinc contents. Rice pottage cooked with Liparis tessellatus instead of abalone was high in protein, calcium, iron and zinc, where one serving provided 29.1, 15.4, 31.0, and 27.8% of their Reference Intake (RI)s, respectively.

Development of NCS Based Vocational Curriculum Model for the Practical and Creative Human Respirces (실전 창의형 인재 양성을 위한 NCS 기반 직업교육과정의 모형 개발)

  • Kim, Dong-Yeon;Kim, Jinsoo
    • 대한공업교육학회지
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    • v.39 no.2
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    • pp.101-121
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    • 2014
  • The study aims to develop the NCS based vocational curriculum model for the practical and creative human resources. For effectiveness of the study, the study consists of literature studies of both domestic and international, contents analysis, case study, expert(9samples) consultation and review, and in-depth-interview of the three advisory members. The validity of the developed model is analyzed through mean, standard deviation and contents validity ratio(CVR). The main results of the model development in our study are as follow. First, our NCS based vocational curriculum model for the practical and creative human resources is developed with the analyses of NCS development manuals, training standard utilization and training curriculum organization manuals, NCS learning module development manual and case studies, NCS research report, NCS based curriculum pilot development resources directed toward the high schools and vocational school as well as the domestic and international literature study on career training model like NCS. Second, based on the findings of our analysis in combination with the findings from the consultations with the expert and advisory committee, total 19 sub-factors of each step and domain are extracted. The sub-factors of domain in step 1 are the competency unit, definition of competency unit, competency unit element, performance criteria, range of variable, guide of assessment, key competency; in step 2, they are subject title, subject objectives, chapter title, chapter objectives, pedagogical methods, assessment methods and basic job competence; and in step 2, they are NCS based subject matrix table, NCS based subject profile, NCS based job training curriculum table, NCS based subjects organization flowchart, NCS based job training operation plan. Third, the final model including step 3 NCS based subject profile are developed in association with the linked organizational sub-factors of step 1 and step 2. Forth, the validity tests for the final model by the step and domain yield the mean 4.67, CVR value 1.00, indicating the superior validity. Also, the means of each sub-factors are all over 4.33 with the CVR value 1.00, indicating the high validity as well. The means of the associated organizations within the model are also over 4.33 with the CVR value of 1.00. Standard deviations are all .50 or lower which are small. Fifth, based on the validity test results and the in-depth-interview of the expert and advisory committee, the model is adjusted complemented to establish final model of the NCS based vocational curriculum for the practical and creative human resources.