• The tire
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• s.13
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• pp.5-11
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• 1968

도로사정의 개선에 따라 우리 나라의 자동차 사용조건은 저속, 과적, 험로라고 일컬어지는 한국적인 조건에서 고속, 정량적재 및 포장도로의 서구조건으로 이행하고 있으며 특히 최근에 경부간 고속자동차도로가 일부 착수되고 있다. 이 도로의 설계속도는 80km~120km의 고속으로서 종래 험로에만 대부분 주행해 왔던 우리 나라의 타이어는 고속이란 새로운 사용조건을 맞이하게 되었다. 여기서는 주로 고속타이어의 성능 및 고속을 극복할 수 있는 타이어의 성능에 대하여 개괄적으로 설명키로 한다.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2009.05a
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• pp.268-268
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• 2009

고밀도 유도 결합 플라즈마를 이용한 연료 전기 분리판용 질화 장치를 플라즈마를 모사할 수 있는 3차원 전산 유체 역학 프로그램인 CFD-ACE+를 이용하여 해석하였따. 내장형 안테나 타입의 유도 결합 플라즈마의 전자 온도, 밀도 균일성, 가스 유동, 얇은 기판이 촘촘히 적재 되었을 경우의 플라즈마 특성을 모사하였다.

• The Monthly Diabetes
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• s.286
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• pp.58-59
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• 2013

u-헬스케어를 지원하는 의료시스템은 환자에 대한 정보와 환경을 스스로 인지하고 판단하기 위한 센서, 프로세서, 통신 그리고 환자와 의료인 간의 자연스러운 의사소통을 가능하게 하기 위한 통신, 인터페이스, 보안기술 등이 통합되어야 하고, 환자의 건강을 극대화하기 위한 전자건강시스템은 적재적시에 지능적으로 활성화되고 사용되어야 한다. u-Health 기술 내용중 두 번째로 u-헬스케어 기술의 특징을 알아본다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.333-334
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• 2010

• Proceedings of the Korean Institute of Building Construction Conference
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• 2004.05a
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• pp.85-90
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• 2004

We divided the planting bale into waterproof layer, drainage layer and soil layer so at to investigate changes of live load according to species of wood and composition of the base to make rooftops green. The results are follows, 1. As concerning construction and live load for green roof, sheet waterproofing is superior. 2. When materials of drainage are changed crushed gravel into artificial lightweight graval or ferrite, live load of planting bale is decreased about 22% and 25% in order. 3. When ingredients of soil are chased normal sand into volcanic sand, live load of base is decreased about 28%. Especially, when it is changed into ferrite, 54% of live load is decreased. 4. In this study, all live load we concerned excesses the standard about roof live load of office, school and house. Hence, structure has to be concerned thoroughly when making rooftops green. But, we judge that various methods for making rooftops green can be applied if we consider roof garden when we plan new buildings.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.71
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• pp.107-126
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• 2016

This study is to review "on board notation" on a bill of lading under letter of credit transactions. A bill of lading is a type of document that is used to acknowledge the receipt of a shipment of goods. However, UCP 600Article 20 (a)(ii) requires the bill of lading to indicate that the goods have been shipped on board a named vessel at the port of loading stated in the credit by pre-printed wording, or an on board notation indicating the date on which the goods have been shipped on board. The shipped on board statement should relate to loading on board the named vessel at the port of loading stated in the credit. But it doesn't seem that the on board notation clause in the UCP 600 reflect current shipping practice fully because of the various kinds of on board notation and the confusion surrounding their use. There is a need to understand accurately the meanings and requirements of "on board notation" under UCP 600 and the related regulations. So, This paper will be studied the requirements and indication method of "on board notation" on the bill of lading and presented the practical implications under the bill of lading transactions. This study was based on documentary research including preceding research.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.27-30
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• 2006

GIS 분야에서 데이터 교환의 표준으로 OGC(Open Geospatial Consortium)에서 GML(Geography Markup Language)이 제안되어 웹 어플리케이션이나 공간 데이터 교환에서 사용이 일반화 되어가고 있다. 또한, 공간 데이터를 효과적으로 수집하여 의사결정을 지원하기 위한 시스템인 공간 데이터 웨어하우스에서도 GML 데이터를 추출하여 소스 데이터로 활용하는 것이 요구되고 있다. 하지만 GML 은 반구조형식(semi-structured)의 데이터 형식을 가진다. 따라서 기존 구조적인 데이터와는 추출하는 방식이 다르므로 GML 의 특징에 맞는 공간 데이터 추출이 수행되어야 한다. 본 논문에서는 공간 데이터 웨어하우스에서 GML 기반의 공간 데이터 소스를 추출할 때, 중복되는 공간 객체를 하나의 표현으로 통합하여 효율적으로 적재하는 기법을 제안한다. 이는 GQuery를 이용하여 GML 데이터를 추출한 후, GML 스키마를 메타데이터에서 관리하는 스키마 정보와 비교하여 공간 데이터 웨어하우스에 통합된 공간 데이터를 제공하는 기법이다. 성능평가에서는 기존의 GML 데이터를 추출하는 기법과 제안기법과의 비교를 통하여 제안 기법의 기존 기법에 비해 평균적으로 약 9.95%의 성능향상을 보였다.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.23 no.9
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• pp.620-626
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• 2011

The purpose of this study is to evaluate a simulation model of a stacking guidance system (SGS) with a roller guide applicable to the mobile harbor. The study used a small-scale model (1/20) made of wood with rollers in order to compare the dynamic analysis with experiment results. The law of similarity was applied for the validation of the scaled model. In order to construct a more realistic simulation model, the damping coefficient of the dynamic model was adjusted to 0.5 Ns/mm for the wood-to-wood contact condition based on the experimental results. Using this validated model, dynamic simulations were also carried out for containers of 20, 30, and 40 tons. The results showed that the reaction force of the roller guide was increased from 74.7 kN to 91.2 kN as the weight of container increased. For the design of a roller guide for SGS, the results obtained in this study can be used to reduce the reaction force by employing a rubber roller or a highly damped rotational joint.

• The Journal of Information Technology
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• v.4 no.1
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• pp.1-7
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• 2001

The well-known tradeoff of Java's portability is the inefficiency of its basic execution model, which relies on the interpretation of an virtual machine. Many solutions have been proposed to overcome this problem, such as just-in-time(JIT) and offline bytecode compilers. However, JIT compiler can not avoid the overhead of runtime. since it translate bytecode into native code at runtime. And, pure offline bytecode compiler limits the ability of dynamic class loading. In this paper, we present an approach which preserves the ability to dynamically load bytecode, and is more efficient than JIT. In contrast to existing bytecode-to-C translator using the old NMI, our translator maintain complete compatibility and portability through using the Java Native Interface(JNI) standard. We have designed and implemented an translator for converting bytecode to C code with JNI.. named MyJNItool.

• Tunnel and Underground Space
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• v.18 no.1
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• pp.33-43
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• 2008

The techniques for measuring the bulking factor of rock mass in subsidence area have never been well known all over the world. The volumetric expansion ratios obtained from blasting operation were the only way of acquiring the bulking factor of rock mass. The bulking factor of rock mass obtained from blasting operation, however, has been seldom classified in a certain criterion. Also the bulking factor of rock mass can be very dependent upon rock types. In order to overcome this limitation obtained from these reasons, the authors studied the experimental bulking factor of rock mass according to the stacking shapes as well as the overburden stresses. Gneiss, limestone and shale were chosen for testing specimens, and each bulking factor has been measured with laboratory test of applying a constant load on the fragmented rock specimens.