• Steel and Composite Structures
• /
• 제49권5호
• /
• pp.517-532
• /
• 2023

Tower structures have been widely used in communication and transmission engineering. The failure of joints is the leading cause of structure failure, which make it play a crucial role in tower structure engineering. In this study, the aluminum alloy three tube tower structure is taken as the prototype, and the middle joint of the tower was selected as the research object. Three different stainless steel-aluminum alloy composite joints (SACJs), denoted by TA, TB and TC, were designed. Finite element (FE) modeling analysis was used to compare and determine the TC joint as the best solution. Detail requirements of fasteners in the TC stainless steel-aluminum alloy composite joint (TC-SACJ) were designed and verified. In order to systematically and comprehensively study the mechanical properties of TC-SACJ under multi-directional loading conditions, the full-scale experiments and FE simulation models were all performed for mechanical response analysis. The failure modes, load-carrying capacities, and axial load versus displacement/stain testing curves of all full-scale specimens under tension/compression loading conditions were obtained. The results show that the maximum vertical displacement of aluminum alloy tube is 26.9mm, and the maximum lateral displacement of TC-SACJs is 1.0 mm. In general, the TC-SACJs are in an elastic state under the design load, which meet the design requirements and has a good safety reserve. This work can provide references for the design and engineering application of aluminum alloy tower structures.

• 유통과학연구
• /
• 제12권6호
• /
• pp.5-13
• /
• 2014

Purpose - The purposes of this editorial review are twofold: firstly, to introduce the four flagship international journals of the Korea Distribution Science Association(KODISA): the Journal of Distribution Science(JDS), the Journal of Industrial Distribution & Business(JIDB), the East Asian Journal of Business Management(EAJBM), and the Journal of Asian Finance, Economics and Business(JAFEB), and secondly, to identify the direction of the KODISA journals and the roles and responsibilities of the editors of the KODISA journals. Research design, data, and methodology - To achieve the goals, firstly, this review paper addresses the current progress of the four KODISA journals: JDS, JIDB, EAJBM, and JAFEB. Secondly, this paper defines the aims and missions of the four KODISA journals. JDS publishes the articles of examining past, current, and emerging trends and concerns in the area of distribution science and economics, logistics and SCM, transportation, distribution channel management, distribution innovation and information technology, merchandising and procurement, distribution and marketing, consumer behavior, and manufacturing, wholesaling, and retailing. JDS publishes both quantitative and qualitative research as well as scholarly commentaries, case studies, book reviews and other types of reports relating to all aspects of distribution. JIDB publishes the articles of examining past, current, and emerging trends and concerns in the areas of industry and corporate behavior, industry policy making, industrial distribution and business, e-commerce, and service industry. EAJBM publishes empirical and theoretical research papers as well as scholarly commentaries, case studies, book reviews, and other types of reports relating to all aspects of East Asian business and economy. JAFEB publishes original research analysis and inquiry into the contemporary issues of finance, economics and business management in Asia, including Central Asia, East Asia, South Asia, Southeast Asia, and Middle East. The mission of JAFEB is to bring together the latest theoretical and empirical finance, economics and business management research in Asian markets. The audiences of the KODISA journals include higher education institutions, scholars, industry researchers and practitioners, scientists, economists, and policy makers throughout the world. The main mission of the KODISA journals is to provide an intellectual platform for international scholars, promote interdisciplinary studies in social sciences and economics, and become leading journals in the social science and economics category in the world. Thirdly, this paper addresses the current status of indexing in major databases of the KODISA journals, namely: Cabell's Directories, EBSCO, SCOPUS (Elsevier), and Social Sciences Citation Index^® (SSCI, Thomson Reuters). Fourthly, this paper identifies the roles and responsibilities of the editors of the KODISA journals as the following: (1) Make sure that the journal be published in a timely manner and in international standards both in print and online versions. (2) Maintain the online homepage of the journal is always accessible to, and (3) Make sure that every article should go through a peer review process that meets international standards. Findings and conclusion - To accomplish the goals and missions of the KODISA journals, the editors of the KODISA journals must work together to publish high scholarly journals that meet international standards of journal publications.

• 한국지역지리학회지
• /
• 제17권6호
• /
• pp.679-697
• /
• 2011

본 연구는 경기도 남부 지역의 수원, 오산, 용인, 화성의 학군들을 중심으로 중학생의 전 출입의 공간적 특성을 분석을 하였다. 최근 교외화로 빠른 인구 성장을 나타내고 있는 네 개 도시 지역의 교육공간을 학생이동의 실증적 데이터를 토대로 분석하여 학군의 적정 배치, 교육환경 개선, 교육 형평성 실현 등 교육 정책의 시사점을 제공하고자 하였다. 연구지역의 학생이동에 영향을 미치는 학군별 학교, 주택개발, 사회경제적 변수의 분포 특성은 상관관계 분석, 다중회귀 분석, 군집분석을 통해 주로 파악되었다. 그 결과 도시의 중심부와 주변부, 그리고 기존의 도시들과 신흥택지개발 지역의 학군들 간에 뚜렷한 공간적 차이가 나타났다. 첫째, 도시 중심부의 학군은 인접학군간의 이동이 많은 반면, 도시 주변부의 학군은 전출 성향이 강했다. 둘째, 경기도 남부지역에서 전입률이 가장 높은 지역은 신흥택지개발지역인 것으로 나타났다. 셋째, 이들 신흥택지개발지역은 학생의 유동성이 낮은 기존 도시들에 비해 상대적으로 교육 환경이 열악하여 교육 수요를 충족할 수 있는 교육시설의 공급과 지원이 필요하였다. 넷째, 이상을 종합해 볼 때 경기도 남부지역의 학생이동은 교외지역의 재구조화를 반영하여 다핵을 중심으로 공간상에 나타났다.

• 한국지구과학회지
• /
• 제29권6호
• /
• pp.474-486
• /
• 2008

영재교육에 대한 관심과 대상의 증가로 영재교육 프로그램 개발에 관한 연구가 많이 진행되고 있지만 영재들의 다양한 흥미와 요구에 부합되고 인성측면을 강조할 수 있는 지구과학 영역의 교육활동 자료 개발은 부족한 실정이다. 이에 본 연구는 중학교 과학영재 학생들을 대상으로 지구과학 분야에 대한 능동적 소집단 협력학습 프로그램을 개발하고 개발된 프로그램이 과학영재들의 과학 창의적 문제해결력과 과학탐구능력 및 학습태도에 미치는 효과를 알아보았다. 그리고 능동적 소집단 협력학습 프로그램을 적용한 후 학생들의 수업프로그램에 대한 인식을 조사하였다. 본 연구의 결과 개발된 능동적 소집단 협력학습 프로그램은 영재들의 과학 창의적 문제해결력과 학습태도에 있어서 유의미한 증가를 보였다. 또한, 능동적 소집단 협력학습은 학생들의 수업에 대한 흥미도와 만족도 및 참여도를 높일 수 있고 정의적영역에도 많은 영향을 끼치는 것으로 나타났다. 이러한 결과는 교사 설명 위주의 수업이 아니라, 학생 중심의 다양한 활동적 수업이 진행되었고 긍정적 상호작용을 위한 급우들과의 토의 및 토론을 할 수 있었기 때문이다. 이는 능동적 소집단 협력학습을 통하여 다른 학생을 배려하고 서로 조화를 이루며 의견을 주고받을 수 있도록 소집단 구성원 사이의 상호작용을 촉진했기 때문으로 인식된다.

• 패션비즈니스
• /
• 제6권5호
• /
• pp.48-58
• /
• 2002

The purpose of this study is to analyze four separate elements-sublime beauty, elegant beauty, mysticism, ornament-which appeared in materials, patterns, colors, silhouettes, details, and accessories, laying stress on luxurious, brilliant, mysterious feelings on Gorgeous Images appeared as trend theme of modern fashion by mixing religious mysticism of the Byzantine Empire. Mysticism element is using the effect of splendid and gorgeous colors from the Orient rather than forms. And a philosophy of abundant colors in mosaics, which are seen in art forms such as architecture, paintings, etc., shows that it creates some visual rooms for religious spirits. Influenced by the fashion of the Greco-Roman style, the elegant beauty element is expressing abundant comfort and elegant feminine lines that are from creases, and it is also emphasizing natural beauty which seems to slip down by displaying the splendid images of Gorgeous as drapes that fit a body. Ornament element was reflecting an inspiration from the splendid and brilliant culture of religion in the Byzantine Age. Therefore, it was appeared as a style filling the whole with bulky silks, splendid ornamental materials embroidered in gold or silver thread, the complicated geometric patterns that are two-dimensional and dignified, and so on. It was decorated with crosses which represent Christianity as a motif, and also it emphasized the splendor of the Byzantine and dazzling splendid images of Gorgeous by using accessaries decorated with various jewels. The elements of sublime beauty are showing the beauty adding humble and majestic images to it as designs sought by spiritual values or intrinsic values. Those designs, so to speak, have pretense which does not allow to expose a body and plain pure feeling, so that they are showing some abstinent styles in a solemn atmosphere, with most details removed. We can say the Fashion Theme appearing in Modern Times is the result from representing by combining various factors of the times with formative beauty through creative works for aesthetic expression. The moderners are requiring new designs which is possible to meet their individualities, in addition to their outstanding fashion senses. From this point of view, a variety of textiles, patterns, and colors in the Byzantine have a great meaning to fulfill people's various desires as interesting elements.

• 한국산학기술학회논문지
• /
• 제20권7호
• /
• pp.520-527
• /
• 2019

본 연구에서는 충북지역 제조업체의 기술 수준과 역량을 진단하여 지역 대학과의 산학협력 효율화에 대한 시사점을 도출하였고 그 결과는 다음과 같다. 첫째 충북지역 산업체들은 중숙련, 고숙련 기업이 75%이며 생산제품의 수명주기는 중 장년기에 접어들은 것으로 조사되었다. 또한 산업체는 마케팅판매기술과 경영 및 관리기술 등의 역량을 과도하게 평가하고 있었다. 따라서 지역 대학들은 산업체의 신산업 육성을 위해 기술이전 및 사업화를 지원하고, 교육과 세미나를 통해 현실 이해와 미래예측 능력을 증진시켜야 할 것이다. 둘째, 충북지역 대학들은 평생교육과정과 같은 일반 교육 프로그램을 우선 제공하여 산업체의 실제적 요구에 부응하지 못했다. 산업체들은 필요인력 배출과 기술교육 등 실무 교육 프로그램을 필요로 했으며, 이외에도 시험, 분석 등의 지식과 인프라 제공, 공동연구 등 기술개발 참여를 기대하고 있었다. 따라서 대학은 수요조사를 통해 맞춤형 협력 프로그램을 준비하고 산업체와 다양한 연결점을 마련해야 할 것이다. 셋째, 충북지역 산업체들의 보유기술은 지역전략산업과 관련성이 매우 낮은 것으로 조사되었다. 이는 산업체와 지자체 간 비전이 공유되지 않은 것으로 대학은 다양한 지역사회 주체들을 조직화할 수 있는 플랫폼 역할을 수행해야 할 것이다.

• 한국구조물진단유지관리공학회 논문집
• /
• 제23권1호
• /
• pp.27-35
• /
• 2019

기존의 중-장경간 철도교량에는 주로 강박스 거더교가 적용되어 왔다. 하지만 강박스 거더교는 교량 아래의 공간확보가 불리하고, 주거더가 얇은 박판의 박스형상으로 이루어져 진동에 의한 울림소음이 발생하여 소음에 대한 많은 민원이 제기 되고 있다. 이와 같은 이유로 강박스 거더교를 대체할 수 있는 장지간 철도교량의 개발에 대한 필요성이 대두되었다. 본 논문에서는 이러한 이유로 최근에 개발된 강합성 하로 철도교에 대한 특징을 소개하고, 이 철도교의 주요 적용 지간인 40m와 50m 교량을 대상으로 실제 운행열차인 KTX 하중의 운행속도를 반영하여 상용유한요소프로그램인 MIDAS Civil을 이용하여 시간이력해석을 수행하였다. 또한 해석결과를 분석하여 대상교량의 동적거동 특성을 확인하고 철도설계기준에서 제시하고 있는 동적성능 기준을 만족하는지에 대해 검토하였다. 그 결과, 검토 대상 교량 모두 동적안전성 기준을 만족하였으나 지간 40m의 경우 연직가속도 값이 상당히 크게 나와 이에 대한 개선 방안을 제시하고, 단면을 수정하여 연직가속도의 감소를 확인하였다.

• 대한간호학회지
• /
• 제30권2호
• /
• pp.452-462
• /
• 2000

There are currently 214 orphanages in Korea which house approximately 13,873 orphans aged between 3 and 18; this accounts for about 0.12% of all children in the same age range. Some have lost their parents, but most have come after their parents divorced or broke up. This means majority of the children in Child Care Centers have parents. Traditional virtue of obedience to parents (Hyo) was regarded as one of the highest value in Korea. Also the interaction between parents and their children was regarded as basic human nature that parents look after, both physically and spiritually, their children until they become one of the matured social member. Raised without having a chance to realize their filial duty and not having been cared for by their parents, most orphans feel that they lack something in their lives when compared with friends. In the end, they live their lives longing for their parents and go through mental discord about their parents. This paper is focused on understanding orphans' experience and views on parents. I approached the issue by applying van Manen's Hermeneutic Phenomenological Approach. The interviews, along with other reference material were phenomenologically reflected to draw essential themes as follows; 1. Orphans of pre-school age hazily long for parents without having any practical image of their parents. 2. They occasionally dream meeting their parents with image that can only last in their dreams, and this continues up through middle school. 3. At the age of elementary school, they crave the image of parents as they see their friends with their parents. 4. They start to despise their parents for having abandoned them when they reach puberty. 5. Meanwhile, as their vague image of parents fade away, they attempt to give up their thoughts toward their parents. 6. Highteens start to think in terms of fate. 7. They don't long for their parents anymore as they used to, but still wishes to meet them at least once. However, they don't want to start any kind of a relationship with them. 8. They fear that they will also fail in raising families of their own, and making their children orphans too, just like their parents have. They simply don't want to follow their footsteps. 9. Thinking that they were abandoned by their parents, they are reluctant to believe other people.

• 안보군사학연구
• /
• 통권4호
• /
• pp.289-350
• /
• 2006

The world has been rapidly restructured in an agenda of national security from center of military strength to that of economic strength since the post cold-war era China military leadership-division carried out RMA through learning of a lesson from Gulf war in 1990 -1991 and Iraq war in 2003, thus the leadership-division made an attempt to convert the military system to a technical intensive system. The principle based on RMA of China military is (National defense strategy) drafted by the central military committee 1985 and (Four modernization general principles) 1978. China has introduced Russian high-technological arms and equipment in order to build up the military arms greatly thanks to an economical development, and they take pragmatism line as chinese socialism with their strategy to make secure a position as military powers such as they successfully launched a manned spacecraft and are building an air-craft carrie and soon. USA has a theory of dichotomy whether a country is a cooperator for USA, or not. and also enemy or friend since 9.11terror, thus USA is different from their direction of police. This is because USA stands a position as the superpower of the supremacy hegemony of the world. We must be carefully aware that USA considers as important area for Middle east, West south Asia, Central Asia and Northwest Asia to meet the demands of 2lcentury. Accordingly, the focus of USA's military strategy will be probably concentrated at the above mentioned four areas. On the other hand, USA enjoys such a superpower position due to collapse of USSR which was the past main enemy since the post cold war era. We could give an conclusive example as fact that USA has recurred to unilateralism But USA carry on the military operations to the terror groups at global around by converting thje military strike strategy to pre-emptive strike strategy since9.11 terror, 2001. USA seeks for transformation to the mobile military forces with light-quantity oriented in order to carry on such the military operations and makes progress GPR, And the USA forces in Korea makes progress a military renovation as part of such a military strategy. On the other hand, USA promotes the measures of choose for the countries standing at the crossroads of strategy and carries forward a main scheme of provision for four priority aims that the leaders of a hostile country and mis-country shall be prohibited from use and obtainment of weapons of mass destruction. Accordingly, this treatise found out a significant meaning to have an effect on the national security in the korean peninsula.

• 한국지구과학회지
• /
• 제29권2호
• /
• pp.204-217
• /
• 2008

본 연구는 초 중 고등학교 과학 교과서의 천문영역에 수록된 탐구활동을 NRC(2000)에서 제시하는 탐구기본요소 5가지와 SAPA에서 제시하는 기초 및 통합적인 탐구과정을 통해 분석하였다. 이를 토대로 과학 교과서의 탐구 활동이 과학교육의 목표인 과학적 소양을 실현하기에 제한점이 있음을 제시하고, 보완적인 방법에 대한 시사점을 제공하고자 하였다. 천문영역을 분석한 결과 초 중 고등학교 대부분의 교과서가 NRC(2000)의 탐구요소 5가지 중 탐구요소 2에 해당하는 증거 수집이 가장 많이 나타난 반면에 탐구요소 1의 문제제기와 탐구요소 5의 발표 및 정당화 부분이 거의 나타나지 않았다. 또한 위의 결과를 바탕으로 구체적인 탐구과정인 SAPA로 분석해 본 결과, 천문영역의 교과서 탐구 활동은 기초탐구과정에는 관찰, 의사사통, 조작, 시공간관계사용 과정 빈도수가 학년에 따라 증가하며, 통합과정에서는 조사, 모델설정, 데이터 해석, 그래프 작성, 실험과정이 늘어나는 경향을 보여주었다. 이에 개정 7차 교육과정에서 제시된 과학적 소양 함양을 위한 교과서에서는 제한적인 탐구활동을 확장하여, 천문영역에서도 전반적이고 다양한 탐구요소 및 탐구과정을 학생들이 경험할 수 있도록 해야 할 것이다. 또한 탐구활동을 가르치는 교사들을 위한 수업모듈뿐만 아니라 이를 사용하는 교사들의 탐구에 대한 이해도 및 교수전략에 있어서도 전문성이 이뤄져야 할 것이다.