• Title/Summary/Keyword: special use

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Fabrication of Pure Refractory Metals by Resistance Sintering under Ultra High Pressure

  • Zhou, Zhang-Jian;Du, Juan;Song, Shu-Xiang;Ge, Chang-Chun
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 2006.09b
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    • pp.1323-1324
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    • 2006
  • Refractory materials, such as W and Mo, are very useful elements for use in high-temperature applications. But it is not easy to fabricat pure W and Mo with very high density and retaining very fine grain size because of their high melting point. In this paper, a newly developed method named as resistance sintering under ultra high pressure was use to fabricate pure fine-grained W and Mo. The microstructure was analysis by SEM. The sintering mechanism is primary analyzed. Basic physical property of these sintered pure W and Mo, such as hardness, bend strength, are tested.

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A Study of Chinese Linguistic Taboo (중국 금기어 소고)

  • Han, Yong Su
    • Cross-Cultural Studies
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    • v.34
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    • pp.307-330
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    • 2014
  • To avoid calamities, the Chinese use different euphemisms in various fields of occupation and region. There are a lot of linguistic taboos concerned with Xieyin that shows the special characteristic of chinese characters. If two characters are homophones and one of them is considered offensive or misfortune, the Chinese prefer to substitute another expression for them in the actual conversations. These substitutes are called euphemisms. As an combined expression of psychological insecurity and language, euphemisms were not only used in the past, but also now they are still in common use. Although some of the chinese euphemisms are not used anymore nowadays, some of them are still used. There are a large number of chinese euphemisms in common use, but some special ones are used in particular fields only. This article focused on the linguistic taboos in some special fields like different regions, occupations and some others related with calamities, and tried to make a distinction from other previous studies. Language reflects culture and euphemism is a mirror of culture. The study of chinese linguistic taboos and euphemisms is expected to be some help to understand the chinese customs and linguistic features.

An Empirical Study on Success Factors of Special-Purpose Mobile Applications: Focusing on the Mobile Campus Application of A University (특수목적용 모바일 앱의 성공요인에 관한 실증연구: A 대학교 모바일 캠퍼스 앱을 중심으로)

  • Cho, Woo-Chul;Lim, Jay-Ick;Yang, Sung-Byung
    • Knowledge Management Research
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    • v.15 no.3
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    • pp.13-36
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    • 2014
  • Recently, with the increasing popularity of smartphones, mobile applications have been being used in various sectors. In these environments, some mobile applications are being made for special purposes. The mobile campus application is one exemplary type of such special-purpose mobile applications, which have unique characteristics that allow only designated users, belonging to a specific group, to access and use relevant knowledge. The aim of this study is to identify and investigate critical success factors of mobile campus applications based on the DeLone & McLean's information systems (IS) success model and to find unique characteristics of mobile campus applications, compared to general-purpose mobile applications. In order to empirically test our research model, 199 samples were collected from students who actually had experience of using the mobile campus application of A university at least once. The findings of the structural equation modeling using SmartPLS 2.0 confirmed the DeLone & McLean's IS success model, with the exception for relationships between service quality and user satisfaction/intention to use. Moreover, the moderating role of sense of belonging to school on the relationships between quality-related factors (i.e., information, system, and service qualities) and success-related factors (i.e., user satisfaction and intention to use) was examined.

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Present Status and Future Trends on Urban Greening at Special Sites

  • Huinan Fu;hongye Huan
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • no.2
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    • pp.51-56
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    • 2004
  • This paper discussed the use of the urban greening space beside nature land----special sites of urban Greening. Consider: the special sites of urban greening are referred to the space formed by urban building and framing, where plants can grow under natural or artificial condition. Filly using those spaces will efficiently increase green area, improving ecological environment and landscape in urban area. A classification to special sites of urban greening was put forward, which are the habits of plant combine with the form of buildings. The present status and future trends on urban greening at special sites was discussed and analyzed. Consider: there are two developing trends of the research of urban greening at special sites. Firstly, it is more naturalize and ecologize greening landscape. Secondly, It will take form a techologize in the process of constructing and materials.

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Cyclic flexural behavior of RC members reinforced with Forta-Ferro and Polyvinyl Alcohol fibers

  • Hamed Rajabzadeh Gatabi;Habib Akbarzadeh Bengar;Murude Celikag
    • Structural Engineering and Mechanics
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    • v.87 no.4
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    • pp.333-346
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    • 2023
  • This paper presents findings from an experimental study that was focused on evaluating the use of Forta-Ferro (FF) and Polyvinyl Alcohol (PVA) fibers on the response of moderate and special ductility beams under load cycles. For this reason, eight full-scale specimens, identical in geometry, were subjected to gradual cyclic loading. The specimens included two plain concrete beams with medium and special ductility, three beams with medium ductility and stirrup spacing of one-quarter the effective depth (d/4) and three beams with special ductility, and stirrup spacing of one-half the effective depth (d/2), strengthened with FF and PVA fibers separately. The use of fibers was aimed at reducing the amount of shear reinforcement in flexural members. Here, the variation of parameters including the maximum strength, ultimate strength, stiffness, ductility, damage index, energy dissipation, and equivalent damping was studied. Utilizing FF and PVA fibers improved the performance in beams with moderate ductility when compared to those beams with special ductility. Therefore, in special ductility beams, fibers can be used instead of crossties and in moderate ductility beams, fibers can be added to reduce the ratio of shear reinforcement. Furthermore, increasing the stirrup spacing in the moderate ductility beams from d/4 to d/2 and adding 0.6% FF or 1.5% PVA fibers resulted in behavior similar to those of the moderate ductility beam.

Exploring Various Factors on Special Teacher's Adoption Intention towards Robot-based Education (특수교사의 로봇활용교육에 대한 수용의도에 영향을 미치는 요인 탐색)

  • Kim, Tae-Jun;Lee, Tae-Su
    • The Journal of the Korea Contents Association
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    • v.18 no.7
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    • pp.38-48
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    • 2018
  • The purpose of this study was to identify various factors that could possibly influence special teachers' adoption intention towards robot-based education and to see how well those factors predict special teachers' adoption intention. To do this, questionnaire items were selected and reconstructed based on preceding research relating to Technology Acceptance Model(TAM). The survey participants consisted of 623 special school teachers, representing various types of special students and levels of their schools. Questionnaires with unfaithful responses were excluded, and a total of 590 questionnaires were analyzed. Data analysis was carried out through Exploratory factor analysis and stepwise multi-regression analysis. According to the results of study, factors that influence special teachers' acceptance intention towards robot-based education are perceived ease of use, perceived usefulness, personal innovation, and social influence. Also, the most decisive factors affecting special teacher's acceptance intention were perceived usefulness and perceived ease of use. These factors directly influenced special teachers' acceptance intention.

A Study on the Users' Levels of Satisfaction and Recognition after Participating in Cultural Events in the Special Library: Focusing on K Special Library (전문도서관의 문화행사 참가에 따른 이용자들의 도서관 만족도 및 인식도에 관한 연구 - K전문도서관을 중심으로 -)

  • Park, Sang Uk;Nam, Young Joon
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.31 no.2
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    • pp.27-51
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    • 2020
  • This study is targeting Special Library users and aims to find out whether participation in the cultural events of K Special Library affects the levels of satisfaction and recognition of library users. With consideration for the actual operating case, the cultural events of K Special Library were categorized into reading activities, reading promotion events, exhibition events, lecture events, and others. The influential relationship between these cultural events, the level of satisfaction, intention of reuse, and level of recognition of the K Special Library service were analyzed. As a result of this study, participation in cultural events was found to affect the level of use, level of satisfaction on services, intention to reuse and recommend, and level of recognition of K Special Library users. However, regarding the level of satisfaction on the collection of books, there was no significant difference arising from participation in cultural events. As such, it is concluded that participation in cultural events does not affect the level of satisfaction on the collection of the books.

A Convergent Study on the Teacher Aide System in Special Education (특수교육보조원제도에 대한 융복학적 연구)

  • Cho, Hong-Joong;Kim, Tae-Sook
    • Journal of the Korea Convergence Society
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    • v.7 no.6
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    • pp.297-305
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    • 2016
  • The purpose of this study was to suggest the operational problems and improvement methods of the teacher aide system in Korean special education. To suggest the operational problems and improvement methods of the teacher aide system in special education, annual statistics for special education, annual reports for special education, annual operational plans for special education, and the Act on Special Education for the Disabled Persons, etc. were analyzed. The operational problems of the teacher aide system in special education included (1) the uncertainty of special education teacher aide's role, (2) the lack of cooperation between teachers and special education teacher aides, and (3) the lack of a specific guideline for the management of special education teacher aides. The improvement methods included (1) the legislation of special education teacher aide's role, (2) a training system to improve special education teacher aide's professionalism, and (3) the development of a specific guideline to use and manage special education teacher aides.

A Study on the Management Strategies of the Special Libraries and Information Centers under the Competitive Circumstances (경쟁환경에서의 전문도서관.정보센터의 경영전략에 관한 연구)

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    • Journal of Korean Library and Information Science Society
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    • v.35 no.2
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    • pp.155-173
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    • 2004
  • This study explores the ways to upgrade the services of the special libraries and information centers and strengthen their competitiveness. First, this study examines the characteristics of the special libraries and information centers and the competitive environments which they face. And this study considers the possibilities to make use of Knowledge Management(KM) and Competitive Intelligence(CI) in special libraries and information centers in Korea finally, this study provides the management strategies to strengthen the competitiveness of the special libraries and information centers in Korea.

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The Effect of the Qualities of Special Transportation Services on the Image of the Organization through User Satisfaction and User Value (지방정부 특별교통 서비스품질이 이용자만족도와 이용자가치를 통해 기관이미지에 미치는 영향)

  • Kim, Jongeok;Hwang, Changyu
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.14 no.3
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    • pp.127-144
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    • 2018
  • The differentiation of this study is largely based on the above discussion. First, I would like to examine the main factors that affect the image of the local government's special transport agencies in terms of users and suggest strategic options for promoting the local government's special traffic. Second, a public service approach is very necessary considering the concept of new public transport such as local government special transport, individual use experience and social impact. The purpose of this study is to demonstrate the characteristics of local government special traffic through the five important factors of the service quality which are not capable of objectively measuring the characteristics of the service.