• 제목/요약/키워드: History of Information Technology Development

검색결과 199건 처리시간 0.031초

컨테이너 터미널 운영 분석을 위한 형식 프레임워크 (A Formal Framework for Analyzing Performance of Container Terminal Operations)

  • 박은정;하병현
    • 한국전자거래학회지
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    • 제18권2호
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    • pp.191-203
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    • 2013
  • 정보 기술이 적용된 장비 및 운영 시스템의 발달로 실시간 운영 데이터를 수집할 수 있게 되었으며, 현재 많은 터미널이 생산성 분석을 위해 상세한 작업이력을 추적하고 있다. 터미널 운영자는 수집된 작업이력 데이터를 통해 운영 중 발생하는 문제점들을 해결할 수 있는 방안을 도출하기 원하지만, 방대한 양의 자료를 수작업으로 분석하기는 쉽지 않다. 본 연구에서는 터미널 운영 중 획득된 작업이력을 바탕으로 터미널 운영자가 원하는 컨테이너 터미널의 성능지표를 손쉽게 도출하기 위한 방안을 제시한다. 이를 위해 다양한 컨테이너 터미널의 환경과 운영 방식, 운영 장비 등을 지원하기 위해 범용적으로 사용될 수 있는 형식 프레임워크(formal framework)를 고안하였다. 본 연구에서 제안하는 프레임워크는 컨테이너 처리 객체라는 개념을 기반으로 터미널 형태, 로그 데이터, 장비의 워크플로우, 통계 처리 및 보고서를 각각 정의하는 사용자 명세 부분으로 구성된다. 그리고 제안된 프레임워크를 기반으로 터미널 성능 분석 시스템을 개발하여 그 유효성을 검증하였다.

Modelling of seismically induced storey-drift in buildings

  • Lam, Nelson;Wilson, John;Lumantarna, Elisa
    • Structural Engineering and Mechanics
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    • 제35권4호
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    • pp.459-478
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    • 2010
  • This paper contains detailed descriptions of a dynamic time-history modal analysis to calculate deflection, inter-storey drift and storey shear demand in single-storey and multi-storey buildings using an EXCEL spreadsheet. The developed spreadsheets can be used to obtain estimates of the dynamic response parameters with minimum input information, and is therefore ideal for supporting the conceptual design of tall building structures, or any other structures, in the early stages of the design process. No commercial packages, when customised, could compete with spreadsheets in terms of simplicity, portability, versatility and transparency. An innovative method for developing the stiffness matrix for the lateral load resistant elements in medium-rise and high-rise buildings is also introduced. The method involves minimal use of memory space and computational time, and yet allows for variations in the sectional properties of the lateral load resisting elements up the height of the building and the coupling of moment frames with structural walls by diaphragm action. Numerical examples are used throughout the paper to illustrate the development and use of the spreadsheet programs.

감성전달을 위한 매체별 모션그래픽의 시각적 표현기법 분석 (Visual expression technique analysis of motion graphic by media for emotion communication)

  • 윤황록;경병표;이동열
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
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    • pp.921-926
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    • 2009
  • 인류가 등장한 이래 커뮤니케이션 수단으로서 많은 영상 디지털 미디어들이 성장하고 확장되어져 왔다. 영상디지털 미디어들은 수신자와 송신자 사이의 커뮤니케이션을 긴밀하게 한다. 미디어의 변화와 테크놀로지의 발전 속에 등장한 영상디지털 미디어는 시각과 청각의 결합을 통해 시각적 정보전달과 시간적 단축을 가져왔다. 이러한 영상 디지털 미디어의 발전 형태로 등장한 것이 모션그래픽이라는 분야이다. 모션그래픽의 발전은 기존의 미디어가 표현해 내지 못하는 다양한 형태의 영상기법과 표현효과를 가능하게 하고 있다. 특히 영화의 타이들, 텔레비전의 프로그램 타이틀, 그리고 광고를 비롯한 뮤직비디오 등 다양한 분야에 활용되고 있다. 이러한 영상표현기법들은 수용자들의 감성을 자극하여 감성커뮤니케이션적인 작용 또한 수행하고 있다. 본 연구에서는 모션그래픽이 수용자들에게 얼마만큼 효과적인 의미전달 매체로서 중요한 역할을 하는지에 대해 그 특성을 알아보고, 모션그래픽이 감성커뮤니케이션 수단으로서 수용자들에게 미치는 영향과 적용을 사례연구를 통하여 연구해 보고자 한다.

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『림원경제지(林園經濟志)』 어류지식의 한의학적 고찰 - 『동의보감(東醫寶鑑)』과의 비교를 중심으로 - (Knowledge on Fish in the Imwon-Gyeongje-Ji from a Korean Medical Perspective - A Comparative Study with the Dongui-bogam -)

  • 전종욱
    • 대한한의학원전학회지
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    • 제35권3호
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    • pp.71-90
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    • 2022
  • Objectives : This paper summarizes contents on fish in the Injeji and Jeoneo-Ji parts in the Imwon-Gyeongje-Ji and compares them with those in the Dong-uibogam from a Korean Medical perspective. Methods : Most of the knowledge of fish in the Imwon-Gyeongje-Ji is based on preceding material medica studies such as the Dongui-bogam in Joseon, the Bencao-gangmu in China, and the Hwahan Samjaedohoe in Japan. The influential relationships and the process of change among these knowledge information were examined within the context of each literature's development or through identifiable changes in knowledge on each particular kind of fish. Results & Conclusions : In the Imwon-Gyeongje-Ji, the consisting 16 parts are organically connected, sometimes functioning as cross-references. In particular, the medical contents on the efficacy of fish for treating disease is closely linked to contents on fish ecology and environment as written in the Jeoneo-Ji, which deals with the field of living things. On the more detailed knowledge on about 30 kinds of fish, one could grasp the formation process and changes of East Asian traditional knowledge on fishkind among historical study of influential Chinese texts, new stimulation and methodology through Japanese literature on natural history, and dynamic processes of inheriting and selectively accepting traditional knowledge of Joseon.

Analysis of Hierarchical Competition Structure and Pricing Strategy in the Hotel Industry

  • BAEK, Unji;SIM, Youngseok;LEE, Seul-Ki
    • The Journal of Asian Finance, Economics and Business
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    • 제6권4호
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    • pp.179-187
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    • 2019
  • This study aims to investigate the effects of market commonality and resource similarity on price competition and the recursive consequences in the Korean lodging market. Price comparison among hotels in the same geographic market has been facilitated through the development of information technology, rendering little search cost of consumers. While the literature implies the heterogeneous price attack and response among hotels, a limited number of empirical researches focus on the asymmetric and recursive pattern in the competitive dynamics. This study empirically examines the price interactions in the Korean lodging market based on the theoretical framework of competitive price interactions and countervailing power. Demonstrating superiority to the spatial lag model and the ordinary least squares in the estimation, the results from spatial error model suggest that the hotels with longer operational history pose an asymmetric impact on the price of the newer hotels. The asymmetry is also found in chain hotels over the independent, further implying the possibility of predatory pricing. The findings of this study provide the evidence of a hierarchical structure in the price competition, with different countervailing power by the resources of the hotels. Theoretical and managerial implications are discussed, with suggestions for future study.

결함 핵연료 피폭관 내부에서의 수소 침투에 관한 개론적 고찰 (Internal Hydriding of Defected Zircaloy Cladding Fuel Rods : A Review)

  • Kim, Yongsoo;Donald R. Olander;Wonmok Jae
    • Nuclear Engineering and Technology
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    • 제25권4호
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    • pp.570-587
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    • 1993
  • 최근 전 세계적으로 내부2차수소 침투에 의한 것으로 보이는 핵연료의 심각한 파손이 잇달아 보고되었다. 본 논문에서는 결함 핵연료에서의 내부 수소 침투 현상이 개괄적으로 고찰된다. 먼저 핵연료의 피복관으로 사용되는 질코늄 합금의 개발사와 그 질코늄 합금이 사용되는 원자로 내의 운전조건이 소개되고 산화 질코늄 막에서의 수소의 투과성, 질코늄과 질코늄 합금에서의 수소의 최종 용해도와 침전도등 질코늄의 수소 침투에 관련된 기본 사항과 수소 침투가 기계적 강도에 미치는 악 영향등이 고찰된다. 결함 핵연료봉 내부에서 발생되는 수소의 대량 내부 침투의 메카니즘이 관찰된 제 현상을 중심으로 정성적으로 설명되고 이러한 수소의 대량 침투에 의한 핵연료치 파손심화를 줄이기 위한 노력의 일환으로 제시된 정량적 모델이 간단히 언급되고 이러한 정량적인 모델의 심도있는 개발을 위해 필요한 자료와 추후의 연구 내용이 설명된다.

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Pioneering the Distribution Industry in Korea: Dynamic Capability at Lotte Shopping

  • Won, Eugene J.S.
    • 유통과학연구
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    • 제16권10호
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    • pp.5-21
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    • 2018
  • Purpose - This case study reviews the development history of Lotte Shopping, which has played a key role in modernizing Korea's retail industry. Research design, data, and methodology - Lotte Shopping's expansion to various channel types has been reviewed from the perspective of the resource-based view of strategy. The opening of Lotte Department Store in 1979 signaled the beginning of the modernized distribution system in Korea. Lotte Shopping expanded its business domains to various types of retail channels, such as discount stores, online shopping malls, TV home shopping, convenience stores, supermarkets, home appliances specialty stores and health & beauty stores. Results - Lotte Shopping has been able to maintain high level of customer satisfaction with leading merchandising skills. It has developed mutually beneficial relationship with the partner firms. It has also been a leading firm in implementing corporate social responsibility activities and environment-friendly management. Lotte Shopping has applied advanced information and communication technology to provide customized goods/services. Conclusions - This study summarizes the business environment and new challenges Lotte Shopping faces currently. Lotte Shopping is trying to reinforce the omni-channel strategy, which can create synergy among various distribution channels based on its core competences.

그린 IT를 위한 IT 컨버전스 사례 분석에 관한 연구 (Actual Cases and Analysis of IT Convergence for Green IT)

  • 이성훈
    • 한국융합학회논문지
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    • 제6권6호
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    • pp.147-152
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    • 2015
  • 최근에 우리 사회에서 관심을 끌고 있는 키워드는 친환경 혹은 그린이라는 단어일 것이다. 오늘날 우리사회는 산업화에 따른 무분별한 자원의 개발등으로 환경오염에 대한 우려가 가속화되고 있는 상황이다. 그린 IT는 환경을 비롯한 에너지 관련 문제들을 해결하고 기업의 생산성을 높일 수 있는 방법으로 미래 산업 발전에 필요하다. 따라서 본 연구에서는 그린 IT와 관련된 내용을 연구하였다. 그린 IT는 변천과정을 통해 IT에 대한 그린화를 시작으로 현재는 IT를 이용한 타 산업에서의 그린화가 활발히 진행되고 있다. 본 연구에서는 그린 IT에 대한 변천과정 및 각 과정에서의 특성, 대표적 사례들에 대해 기술하였다. 마지막으로 그린 IT에 대한 대표적 융합사례인 스마트워크(smart work)에 대해 조사, 분석하였다.

사용자 경험 강화를 위한 위치 기반 캠퍼스 투어 증강현실 게임 (A Location-Based Campus Tour Augmented Reality Game for Enriching User Experience)

  • 최재욱;박경신
    • 한국정보통신학회논문지
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    • 제24권6호
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    • pp.729-735
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    • 2020
  • 대학 캠퍼스 투어는 방문객 또는 예비 학생들에게 학교 환경, 시설 및 역사를 홍보할 수 있는 좋은 기회이다. 최근 스마트 폰의 대중화와 정보통신기술의 발전으로 많은 대학에서 캠퍼스 투어를 위한 모바일 애플리케이션을 제공하고 있으며, 그 중 일부는 증강 현실 기술을 활용하기 시작했다. 그런데 기존의 캠퍼스 투어 증강 현실 앱은 대부분 설명 중심의 캠퍼스 투어 가이드를 제시하는 경향이 있다. 또한 시스템 구현을 캠퍼스의 주요 건물이나 기호에 관한 단순 정보 제공하는 것에 그친다. 본 연구에서는 게임을 통해 캠퍼스를 돌아다니며 자체 가이드 투어를 하고 신입생이나 방문객들이 보다 자연스럽고 직관적인 방식으로 캠퍼스에 익숙해지도록 하는 데 초점을 맞추고 있다. 이 논문에서는 사용자 경험을 향상시키기 위해 위치 기반 모바일 증강 현실 보물찾기 게임의 설계 및 개발을 제시한다.

고려의 원시영역 유목초지, 그 부르칸(불함)이즘과 한국축산의 비전 (Burqanism from the Origin of the Pastoral Nomadic Koryo Region and the Vision of Korean Livestock Farming)

  • 주채혁
    • 한국초지조사료학회지
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    • 제25권1호
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    • pp.71-82
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    • 2005
  • Khori(高麗) refers to the Chaabog(reindeer) that live on lichens(蘚) on Mt. Soyon(鮮) in which pastures are the cold and dry plateau of North Eurasia. Thus, the origin region of the Khori or Koguryo that are the ancestors of the reindeer-herding pastoral nomads(馴鹿 遊牧民) can be said to be the Steppe-Taiga-Tundra pastoral areas of North Eurasia and North America. When the pastoral nomads moved on to the great mountain(大山) zone of the Jangbaek(長白) to the Baekdu(白頭) Mountains, they could have been in contact with pastoral farmers or agricultural farmers living there and they became the farmers remaining on agricultural farms. They were the Koryo people, the ancestors of Korea. Staying in one place, they gradually forgot the origin of their reindeer-herding pastoral nomadic history in the Northwest area of Mt. Soyon, the small mountain(小山) zone of the Steppe-Taiga-Tundra pastoral areas. In other words, they lost their identity as reindeer-herding pastoral nomads when they entered the agricultural area after leaving the pastoral area. However, since their basic genes had already formed when they lived on the cold and dry plateau of North Eurasia, it is possible to study their pastoral nomadic history focusing on 'the minority living in the broad area(廣域少數)', by utilizing highly advanced biotechnological science and focusing on genes and information technology innovation, and removing various past hindrances in research. Therefore, it is not so difficult to restore the reindeerherding pastoral nomadic history of the Koguryo(高句麗) people and secure their pastoral nomadic identity, of which the first steps have already been taken into their historical stages. The Eurasian continent and the Korean peninsula, especially the cold and dry plateau of North Eurasia and the Korean peninsula have been closely related to each other ecologically and historically. They can never be a separate space at all. The Eurasian continent lies horizontally east to west and thus, the continent forms an isothermal zone. Also, since the time of producing their own foods, it was relatively easy for people with their technology to move to other places owing to the pastoral nomadic characteristic of mobility. Unlike the Chungyen(中原) region, western Asia and the regions covering the Siberia-Manchu-Korean peninsula where food production revolution was first made were connected to the Mongolian lichens route(蘚苔之路: Ni, ukinii jam) and steppe roads. Although the ecological conditions of nature have changed a bit throughout a long history, it was natural for the many tribes in North Asia living on the largest Steppe-Taiga-Tundra area in the world to have believed 'the legends related to animals in relation to their founders and ancestors(獸祖傳說)'. Assuming that Siberian tigers and the tigers living on Mt. Baekdu were connected ecologically and genetically because of the ecological characteristics of the animals, and their migration from plateau to plateau, we would suspect that the Chosun(朝鮮) tribe living on Mt. Baekdu were ethnically and culturally more closely connected to the farther removed Ural-Altai tribes that lived on the cold and dry plateau region than to the Han(i14;) tribe who lived in Chungyen(中原) that was close to Mt. Baekdu. More evidence is the structure of the Korean language which has the form of 'Subject + Object + Verb', which is assumed to have originated from the speedy lifestyle of the reindeer-herding pastoral nomads. The structure is quite different from that of the Han(漢) language, which is based on agricultural life. Also, it is natural for reindeer riding reindeerherding pastoral nomads or horse-riding sheep-herding pastoral nomads(騎馬, 羊遊牧民) to have held military and political power over the region and eventually to have established an ancient pastoral nomadic empire in the process of their conquest of agricultural regions. The stages for founding global empires in the history of mankind maybe largely divided into two, in terms of ecological conditions and occupations. They are the steppes and the oceans. Of course, the steppe-based empires were established based on the skills to deal with horses and the ability to shoot arrows while riding horses, along with the use of iron ware in the 8th century BC. The steppe-based empires became the foundation for an oceanic empire, which could have been established by the use of warships and warship guns since the 15th Century. Based on those facts, we know that Chosun, Puyo(夫餘), and Koguryo are the products of a developmental process of pastoral nomadic empires on the steppes. Maybe we can easily find the pastoral nomadic identity of the Koguryo more than we expected when we trace the origins and history of the Korean tribe living in the pastures located in the northwest area of Mt. Jangbaek by focusing on pastoral nomadic mobility and organization just as we have investigated the historic origins of Anglo-Saxons in America by focusing on the times before the 15th Century. In the process, we should keep in mind that English culture originated from the Industrial Revolution and was directly delivered to the American continent, although America was far from England and was not an intermediate point on long sojourns either. Further, American culture came back to England in a more advanced form later. The most important thing currently to be resolved is to cause Koreans to look back on their own history in a freer way of thinking and with diverse, profound, and sharp insight, taking away the old and existing conventional recognition that is entangled with complicated interests with Korean people and other countries. The meanings of Chosun, Khori, and Solongos have been interpreted arbitrarily without any historic evidence by the scholars who followed conventional tradition of fixed-minded aristocrats in an agricultural society. If the Siberian cultural properties of the stone age, the earthenware age, the bronze age, and the iron age are analyzed in such a way, archaeological discovery will never be able to contribute to the restoration of the Koguryo's pastoral nomadic identity. One should transcend the errors that tend to interpret the cultural properties discovered in the pastoral nomadic regions as not being differentiated from those of agricultural regions and just interpret them altogether from the agricultural point of view. A more careful intention is required in the interpretation of cultural properties of ancient Korean empires that seem to have been formed due to mutual interactions of pastoral nomadic and agricultural cultures. Also, it is required that the conventional recognition chain of 'reverse-genes' be severed, which has placed more weight on agricultural properties than pastoral nomadic ones, since their settlement on agricultural farms was made after the establishment of their ancient pastoral nomadic empires. There is no reason at all to place priority on stoneware, earthenware, bronze ware, and iron ware than on wooden ware(木器) and other ware which were made of animal skins(皮器), bones and horns(骨角器), in analyzing the history in the regions of reindeer or sheep pastures. Reading ancient Korean history from the perspective of pastoral nomadic history, one feels strongly the instinctive emotions to return to the natural 'mother place'. The reindeer-herding pastoral nomadic identity of the Koguryo people that has been accumulated in volumes in their genes and hidden deep inside and have interacted organically could be reborn with Burqanism(Burqan refers to 不咸 in Chinese), which was their religion by birth and symbolized as the red willow(紅柳=不咸). The mother place of the Koguryo's people is the endless vast green pastures of North Eurasia and North America, where we anticipated the development of Korean livestock farming following the inherent properties in the genes of the reindeer-herding pastoral nomads with Korean ancestors. We anticipate that the place would be the core resource that could contribute to the development of life of living creatures following the inherent properties of their genes and biotechnological factors. In other words, biotechnology used for a search for clues on the well-being of humans could be the fruit brought by Burqanism of the Koguryo people and the fruit of the globalization of Korean livestock farming. It is the Chosun farmer in China come from the vast nomadic reindeer pastures of North Eurasia that resolved the food problem of a billion Chinese people with lowland paddy rice seeds (水稻) by transforming Heilongjiang Province(黑龍江省) into an oceanic lowland paddy rice field(水田). Even Mao Tse-tung(毛擇東) could not resolve the food problem by his revolution campaigns for tens of years. Today is the very time that requires the development of special livestock farming following the inherent properties of the ancient Korean reindeer-herding pastoral nomads that respected the dignity of life on the cold and dry plateau of North Eurasia and the America continent. I suggest that research should be started from the pastures of the Dariganga Steppe in East Mongolia that was the homeland of Hanwoo(韓牛) and the central horse-herding steppe place(牧馬場) of Chingis Khan's Mongolia. The Dariganga Steppe is awash with an affluent natural environment for pastoral nomadic living however, the quality of life of the pastoral nomads there is still low. I suggest we Koreans, the descendents of the Koguryo, should take our first steps for our livestock farming business project and develop the Northern nomadic pastures, here at the pastures of the Dariganga Steppe, which is the Mongolian core place of state-of-the-art technology for military weapons.