• Management & Information Systems Review
• /
• v.16
• /
• pp.77-94
• /
• 2005

Nowadays, to change our country into advanced economy, the factor of growth obstacles was to be eliminated, or it is so important that the logistics base establishment enlarges to improve potential productivity. The best strategy to enforce the competition power is that we should be ready for some condition which can do cooperations and association very well. Also it is necessary for actors, government, firm and logistics field, to part their role. The national effort that firm supported by government and community participates in is reduced to achieve rational logistics system because logistics is complicate action flowing to final consumer. That is, self effort is needed for logistics competition system, adjustable arrangement of logistics field, the establishment of comprehensive informations system, logistics rationalization.

• Annual Conference on Human and Language Technology
• /
• 1995.10a
• /
• pp.300-309
• /
• 1995

언어표현에 대한 해석은 그 구성요소들의 통사적-어휘적 구조에 덧붙여 대명사의 동일지시를 살펴야 할 필요가 있다. 조응의 분석과 조응적 선행사를 찾기 위한 효과적인 방법을 발견하는 것이 컴퓨터 언어학(computational linguistics), 특히 자연언어 이해체계(Natural Language understanding system)에 관한 연구의 중심적인 문제라고 할 수 있다. 이 논문의 목적은 영어 조응표현을 개념구조 이론(Conceptual Structure Theory)의 개념도식(conceptual graph)에 의하여 기술함으로써 단문에서뿐만 아니라 복문, 양화구문, 그리고 담화에 이르기까지 언어 전반에 걸쳐 나타나는 동일지시성(coreferenciality)을 간단하고 일관성 있게 설명하는 것이다. 이러한 조응현상을 설명하기 위하여 필자는 개념도식상의 개념을 중심개념, 직접개념, 간접개념으로 구분하고 이들이 문맥깊이 등과 더불어 동일지시성을 설명하는데 중심적 역할을 함을 보이고자 한다.

• Proceedings of the Korean Institute of Intelligent Systems Conference
• /
• 2007.04a
• /
• pp.337-340
• /
• 2007

Recently, autonomous parking problems have attracted a great deal of attention and have been examined in many papers in the literature. In this paper we design a fuzzy logic based garage parking system which is a important part for designing a autonomous parking system. We first analysis the existed papers and design a single-input fuzzy logic control for the parking algorithm and illustrate the effectiveness of the new method via the simulation results.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2002.05a
• /
• pp.616-619
• /
• 2002

Spin casting is one of useful methods to manufacture metal parts with low mold cost and short delivery time. But the silicon rubber based conventional method has several problems such as poor dimensional accuracy, limitation in casting materials and its dependency on speciality in meld making process. To solve those problems, this paper suggests a steel based mold making method using direct CNC machining and the experimental results shows that the parts from the developed method has better dimensional accuracy and surface roughness than those from the conventional method.

• Korean Journal of Microbiology
• /
• v.33 no.1
• /
• pp.66-71
• /
• 1997

호수 생태계내의 생물군집은 생산자로서의 식물플랑크톤과 소비자로서의 동물플랑크톤 및 어류가 주된 위치를 차지하고 세균은 분해자로서 기능한다는 것은 일반적으로 알려진 사실이다. 그러나 1970년대에 들어 세균군집이 생태계내에서 먹이사슬을 연계하는 2차 생산자로서도 기능한다는 사실이 제기되어, 오늘날에는 생태계내에서 세균군집의 역할이 보다 강조되고 있다(6,40,41,42,50). 먹이사슬에 대한 관심은 많은 연구결과들을 생산하였지만 복잡한 먹이사슬 구조는 아직까지 부분적인 이해만을 허락하고 있다. 특히, 어류, 동물 플랑크톤, 식물플랑크톤, 미생물의 각 분야가 서로 구분되어 발전해 왔기 때문에 이들간의 상호작용을 정확하게 밝히는 데에는 많은 한계가 있어 왔다. 1970년대 이래로 담수생태계의 부영양화를 해결하기 위한 방안으로서 생태계내의 먹이 사슬을 이용하는 생물조작의 개념이 대두되었으며, 각 분야의 통합적 연관성을 필요로 함으로써 생태계 이해에 많은 지식을 제공하였다. 이 글에서는 담수생태학의 한 분야로서 생물군집간의 상호작용인 먹이사슬의 연구동향을 생물조작 개념을 중심으로 기술하고자 한다.

• Journal of the Korean Society for Precision Engineering
• /
• v.20 no.5
• /
• pp.124-131
• /
• 2003

As the new model development lead time becoming shorter and the market requirements becoming more strict, automobile manufacturer begins to utilize 3-dimensional CAD system based techniques such as DMU (Digital Mock-up), Rf (Rapid Prototyping), VE (Virtual Engineering) to meet the market trends. But, no satisfactory utilities have been developed yet, to represent emotional properties such as embossment on the surface of interior parts, touch originated from material characteristics in virtual environment, so it is inevitable to manufacture prototype parts to verify actual feeling which passengers feel in automobile. This paper suggests a methodology to enhance the human sensitivity via embodying embossment on the surface of prototype car interior trim without deterioration of dimensional accuracy using RIM (Reaction Injection Molding) and thermoforming method.

• 대한예방의학회:학술대회논문집
• /
• 2002.10a
• /
• pp.394-395
• /
• 2002

• Electronics and Telecommunications Trends
• /
• v.31 no.4
• /
• pp.65-76
• /
• 2016

특정 제조사의 단말 또는 운영체제에 의존성이 없는 플랫폼 독립적인 웹은 높은 이식성, 소프트웨어의 재활용, 개발 생산성, 풍부한 개발자 존재, 유지 보수 면에서 장점을 가지나, 화려한 UI/UX를 제공하는 네이티브 응용에 비해 낮은 성능으로 웹 기반의 응용 개발 및 보급이 크게 활성화되지 못했다. 한편 데스크톱은 물론 모바일 단말의 멀티코어 기반 Graphic Processing Unit(GPU), CPU 탑재 등 HW 고사양화와 웹 응용에서도 HW 가속 기능을 활용할 수 있는 표준 제공으로 성능 제약을 극복할 수 있게 되었다. 본고에서는 GPU 발전동향을 살펴보고, 고속 렌더링 및 병렬 연산처리를 요구하는 웹 응용이 GPU기반 HW 가속 기능을 활용할 수 있는 크로노스 그룹의 그래픽 가속(Web Graphics Library: WebGL) 및 컴퓨팅(Web Computing Language: WebCL) 지원 표준 규격을 정리한다. 또한, 최근 차세대 GPU Application Programming Interface(API)로 발표된 Vulkan에 대해 알아보고, 웹 고속화 기술에 적용 가능성에 대해 전망한다.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2001.04a
• /
• pp.303-306
• /
• 2001

To shorten the delivery time for new products, a lot of prototype plastic parts manufacturing technologies have been developed including injection molding, vacuum casting, thermal forming and so on. Among them, RIM is becoming one of a important soft tooling methods to produce prototype and mass production parts within short time. Further more, as the rapid prototyping technology based tooling methods are playing an important role in prototype manufacturing industry, the utility of the RIM is increasing. But few analyses and mold design techniques have been developed so far due to its chemical and mechanical complexity during the packing and curing process. This research suggests mold gate design criteria to prevent bobbles from molded parts through simplified mathematical model and change of bubble sizes according to the geometry of the molded parts through experiments. Also this study shows the differences of bobble generation mechanism between RIM and injection molding.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2000.11a
• /
• pp.362-365
• /
• 2000

Rapid Prototyping(RP) techniques have revolutionized traditional manufacturing methods. These techniques allow the user to fabricate a part directly from a conceptual model before investing in production tooling and help develop new models with significant short time. This paper suggests to new process to manufacture large size hollow shape parts for prototype-car using Rapid Prototyping technology and Vacuum Molding with the reduction of delivery time. In addition, This paper introduces the dividing and combining method to make large size RP master model in spite of the limit of the build chamber dimensions of commercialized RP system and post-processing method to achieve sufficient surface quality.