• 과학과기술
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• 제8권12호통권79호
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• pp.61-64
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• 1975

An expression for the vibrational frequency of diatomic molecular is obtained by using molecular gas temperature T and molecular gas mean-free path λ. And when λ/T →2.59, beca use of the damped vibration, a diatomic molecular gas is Impeded about transportation. If transfortation is not attained with this condition, rectilinear motion of a diatomic molecular gas can't maintain for the equilibrium state.

• 한국항행학회논문지
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• 제2권2호
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• pp.143-156
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• 1998

인천국제공항이 동북아 허브 공항으로서 성공하려면 동 공항을 중심으로 한 비행편 구성이 경쟁 공항보다 효율적이어야 한다. 본 논문은 항공여행자의 비행편 선택 행위를 분석하여 인천국제공항 허브화 성공을 위한 비행편 구성 계획에 이용하는 방법을 연구했다. 규제가 완화된 시장에서는 소비자의 선호 파악에 기초한 사업 계획이 유효하므로 비집계형 선택모델에서 산출할 수 있는 여행시간가치, 운항빈도와 여행시간의 대체율 등을 이용하여 비행편 구성 계획을 할 필요가 있을 것이다.

• 대한안전경영과학회지
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• 제15권4호
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• pp.1-5
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• 2013

Employee suffered by industrial accident will face more economically disadvantaged and mentally tough life than life of employee before industrial disaster. however, in this study, we will study for welfare and reasonable compensation about how a country or society helps disaster victims in the industry put a little more unhappy because of the disaster of the injustice. I am to look into the rational compensation and welfare of the industrial accident disabled in terms of linking and expanding into social corporation and preparing policies of selecting major companies and prizing policies that can help the disabled if not in direct and monetary ways.

• 한국해양공학회지
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• 제20권6호
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• pp.35-40
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• 2006

In recent years, there's been strong demand for seawalls that havea gentle slope and permeability that serveswater affinity and disaster prevention from wave attack. The aim of this study is to examine wave transformation, including wave run-up that propagates on the coastal structures. A numerical model based on the weak nonlinear dispersive Boussinesq equation, together with the unsteady nonlinear Darcy law for fluid motion in permeable layer, is developed. The applicability of this numerical model is examined through Deguchi and Moriwaki's hydraulic model test on the permeable slopes. From this study, it is found that the proposed numerical model can predict wave transformation and run-up on the gentle slope with a permeable layer, but can't show accurate results for slopes steeper than about 1:10.

• 한국산업융합학회 논문집
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• 제16권2호
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• pp.53-59
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• 2013

The purpose of this study is recognized the problems of parking and parking demand, supply and operation of the control etc. It is to provide an alternative for the overall parking problem. Parking problem occurs because there is not enough parking spaces. In order to solve the parking problem of Chil-gok 1 residential development district, this study propose making use of a road parking lot establishment and the school playground and the public facilities construction parking lot. But it is the methods which are short-term. A fundamental solution method is Levying garage option on car buyers. It is system to apply a law for establishing garages to all of vehicles.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.449-454
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• 2004

As social and cultural value has been changed, customers are demanding equipment innovation of passenger quarters to improve the satisfaction of their needs and the level of transfortation culture. To promote the convenience of passenger and abstract the facilities factor of passenger quarters design, this article analyzed and compared with the facilities factor of passenger quarters which have been operated in domestic and foreign country. While domestic passenger quarters is composed of seat, toilet and washroom, foreign passengers quarters consist of various factor such as familly room, infant room, business room, conversation room, and multipurpose room. Especially, foreign passenger quarters have provided passenger with diversity of attachment space, securing movement line for weak person, and arranging infant/child's space.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1995년도 하계학술대회 논문집 A
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• pp.451-454
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• 1995

Increasing the transfortation efficiency is very important issue in railway system. Speed-up of train and shortage of headway can be its solution. Headway can vary with blocksection length, characteristics of the railway and signalling systems. Safety braking distance needed for passenger's safety is very important factor in block section division method. In this study, basic block section division program was developed with the differential ratio of braking distance resulted by grade value of the track. More complete block section division program is going to be developed by the help of experienced experts.

• 대한예방의학회:학술대회논문집
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• 대한예방의학회 1998년도 제50차 추계 학술대회 연제집
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• pp.246-247
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• 1998

• 전력전자학회:학술대회논문집
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• 전력전자학회 2019년도 전력전자학술대회
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• pp.239-241
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• 2019

기존 이동 트레이 카트의 모터를 구동하기 위해 사용되는 외부 전원 장치는 Bus Bar를 사용함으로써 내구성이 떨어지고 잦은 유지보수가 필요하고 모터 구동을 위해 70v 이상의 전압을 필요로 한다. 또한 기존 카트 시스템은 카트 동시배출, 모터 드라이브 대기전력, 발전량 부족 등 다양한 문제를 갖고 있기 때문에 이를 해결하기 위한 방법으로 본 논문에서는 입력을 배터리로 적용시켜 3배 이상 승압이 가능한 배압회로, 카트 동시 배출을 위한 Super Cap String, 발전량 부족을 해결하기 위한 발전기 병렬 연결을 통해 발전량을 증가 시킬 수 있는 시스템을 제안하고 이를 이론적, 실험적 분석을 통해 그 타당성을 검증한다.

• 한국농촌건축학회논문집
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• 제4권1호
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• pp.99-116
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• 2002

This study is based on the Ecological Design Theories related with the Village and Architectural planning. The purpose of this study is to propose the Rural Village Design Method in consideration of Ecological Environment. To achieve this purpose, Normative Theory Study which means Logical Analysis of Ecological Theories in the new field of Ecological Village and Architecture Design, is done in accordance with the object of this study. This results derived of this study are as follows: 1. Six(6)-Environmentally Friendly Rural Village Planning Elements related with the purpose of this study, are clarified these are Land-use planning, Transfortation planning, Plants and Water, Living-thing Ecological System planning, Energy and resource planning, Village Culture and amenity planning, and Architectural Material planning. 2. Rural Village Design Method in consideration of Ecological Environment is porposed by means of the Normative theroy study analysis and contents analysis related with Ecological Village and Architecture planning which contain Ecological Planning Elements, and case study.