• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 추계학술대회 논문집(I)
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• pp.143-149
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• 2002

There are a lot of differences in the Eastern and Western space culture. Especially, Comparing to Japanese, Koreans are not good at utilizing the small space and react effectively. Therefore, the interior space of public transportation needs to be relatively developed to highly reasonable level in Korea. The purpose of this paper is to propose the concept of Korean tradition in urban transit interior layout, which means vernacular design. The interior layout should be made in terms of the emotional aspect not functional one. In order to study the notion of national character, this study refers the concept of interior layout of the public transportation to the layout of traditional architecture and modern office. The research of vernacular design can provide national character and traditional design and can make a success in a practical use and a visual effect. This study based on the national differences of space will be proposed the outline of interior layout and the shape of interior trims in the public transportation in Korea.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2011년도 춘계학술발표대회 논문집
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• pp.197-202
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• 2011

The purpose of this study was to investigate the current situation of physical and intangible assets, and to analyze the use of planning in a new cultural space creation project areas. For this study, literature survey, filed survey and participant observation methods were used for data collection. The results were as follows. 1) The project's characteristics had a variety of space utilization's scope. It was to emphasize the organizations and participants in the human side. 2) There are the pumping stations, mokgammak, mills, barbershops, marketplaces etc in physical assets, and it was worth the historic or agricultural facility. 3) The using plans of three kinds in hardware facilities, software programs, human ware(human abilities)are linked to each other organically. 4) The problems in the project's process include the administrative and institutional factors rather than planning matters.

• Journal of Astronomy and Space Sciences
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• 제30권3호
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• pp.127-132
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• 2013

Here we review the effort of Fermi Asian Network (FAN) in exploring the supernova remnants (SNRs) with state-of-art high energy observatories, including Fermi Gamma-ray Space Telescope and Chandra X-ray Observatory, in the period of 2011- 2012. Utilizing the data from Fermi LAT, we have discovered the GeV emission at the position of the Galactic SNR Kes 17 which provides evidence for the hadronic acceleration. Our study also sheds light on the propagation of cosmic rays from their acceleration site to the intersteller medium. We have also launched an identification campaign of SNR candidates in the Milky Way, in which a new SNR G308.3-1.4 have been uncovered with our Chandra observation. Apart from the remnant, we have also discovered an associated compact object at its center. The multiwavelength properties of this X-ray source suggest it can possibly be the compact binary that survived a supernova explosion.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.862-867
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• 2009

박물관의 개념을 새롭게 변화시키고 있는 가상현실 기반 박물관의 전시 특성을 분석하고, 분석 결과를 토대로 활용 가능성을 제시하고자 한다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제1권1호
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• pp.35-43
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• 2001

In this paper, we propose a design method for GBSB (generalized brain-state-in-a-box) based associative memories. Based on the theoretical investigation about the properties of GBSB, we parameterize the solution space utilizing the limited number of parameters sufficient to represent the solution space and appropriate to be searched. Next we formulate the problem of finding a GBSB that can store the given pattern as stable states in the form of constrained optimization problems. Finally, we transform the constrained optimization problem into a SDP(semidefinite program), which can be solved by recently developed interior point methods. The applicability of the proposed method is illustrated via design examples.

• 조명전기설비학회논문지
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• 제20권10호
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• pp.1-9
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• 2006

지하공간은 화재를 비롯한 재난이 발생했을 때 지상공간에 비해 더 큰 위험이 따르므로 비상유도등 설계시에 공간의 특징을 충분히 고려해야 한다. 공간구문론의 뎁쓰맵(Depthmap) 프로그램은 공간의 정량적인 분석을 가능하게 하는 프로그램으로, 이를 통해 개구부의 위치 등 평면 구성에 따른 공간의 정확한 분석을 할 수 있다. 본 연구에서는 공간구문론을 이용한 지하공간 비상유도등의 위치선정 방법론을 검토하기 위해 화재발생시 나타나는 인간 행동의 특징을 파악하고 복잡한 공간에서 생존자득의 피난경로를 선택하는 방법을 분석하였다. 그리고 공간구문론으로 분석된 특정 공간에 이상의 분석결과를 종합하여 천편일률적인 설치가 아닌, 공간의 구조를 고려한 비상유도등의 효율적인 위치선정 방법론을 검토하였다.

• Journal of Mechanical Science and Technology
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• 제19권8호
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• pp.1554-1567
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• 2005

When multiple robotics systems with several sub-chains grasp a common object, the inherent force redundancy provides a chance of utilizing internal loading. Analysis of grasping space based internal loading is proposed in this work since this method facilitates understanding the physical meaning of internal loadings in some applications, as compared to usual operational space based approach. Investigation of the internal loading for a triple manipulator has been few as ,compared to a dual manipulator. In this paper, types of the internal loading for dual and triple manipulator systems are investigated by using the reduced row echelon method to analyze the null space of those systems. No internal loading condition is derived and several load distribution schemes are compared through simulation. Furthermore, it is shown that the proposed scheme based on grasping space is applicable to analysis of special cases such as three-fingered and three-legged robots having a point contact with the grasped object or ground.

• International Journal of Aeronautical and Space Sciences
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• 제18권3호
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• pp.579-587
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• 2017

Spaceborne cryocoolers produce undesirable micro-vibration disturbances during their on-orbit operation, which are a primary source of image-quality degradation for high-resolution observation satellites. Therefore, to comply with the strict mission requirement of high-quality image acquisition, micro-vibration disturbances induced by cooler operation have always been subjected to an isolation objective. However, in this study, we focused on the applicability of energy harvesting technology to generate electrical energy from micro-vibration energy of the cooler and investigated the feasibility of utilizing harvested energy as a power source to operate low-power-consumption devices such as micro-electromechanical system (MEMS) devices. A tuned mass damper (TMD)-type electromagnetic energy harvester combined with a conventional passive vibration isolator was proposed to achieve this objective. The system performs the dual functions of electrical energy generation and micro-vibration isolation. The effectiveness of the strategy was evaluated through numerical simulations.

• International Journal of Internet, Broadcasting and Communication
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• 제12권1호
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• pp.116-121
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• 2020

With the recent development of the 4th Industrial Revolution, efforts have been made to carry out communication in a smart factory, farm, etc. at low cost and reliably. Methods for utilizing empty frequencies using TVWS(TV White Space) have been studied which can be used locally within 30 km. However, there have not been many studies on Path-Loss model considering Korean environment. In this paper, the Path-Loss model is divided into LOS (Line Of Sight) and NLOS (None LOS). In case of LOS model, we checked the difference between Free space model, Friis model, 2-ray model and Hata model with measured data. In the case of NLOS model, we checked the difference between Lee Model, ITU-R526-3 Model with measured data. In order to overcome the difference in Korean environment, we derived a model that can be applied in LOS and NLOS and prove its usefulness through performance evaluation through simulation.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2001년도 춘계학술대회 논문집
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• pp.815-818
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• 2001

The buckling of an orthotropic layer bonded to an isotropic half-space with an interface crack subjected to compressive load under plane strain is considered. Basic stability equations derived from the mathematical theory of elasticity are applied to describe the buckling behavior. A system of homogeneous Cauchy-type singular integral equations of the second kind is solved numerically by utilizing Gauss-Chebyshev integral formulae. Numerical results for the buckling load are presented for various delamination geometries and material properties of both the layer and half-space.