• International Journal of Railway
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• v.1 no.4
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• pp.143-148
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• 2008

This paper is the output of a collaborative European project concerning the barrier free accessibility for disabled persons to regional and long distance trains in Europe. Disabled people represent around 13% of the population in Europe. This is approximately 63 million people. The range of disabilities includes people with reduced mobility including wheel chair users, viewing and hearing impaired people and other forms of impairment. Improving accessibility aims at contributing to the provision of public transport services to all citizens in an equitable way. The purpose of the project was to analyse and to evaluate the existing solutions at selected European railways for all required modules at the entrance (doors, information and safety solutions), to derive a design concept, to develop a mock-up in meeting the needs of rail travellers with the above mentioned impairments and to test it with user groups. The project also aims at deriving components for the determination of standards. The EUPAX Design Mock-up test was performed to verify the advantages of the layout of the train segment including the different modules such as access area (including the access door, gaps between platform and train as well as boarding aid devices), entrance vestibule, information systems inside and outside the train, emergency facilities, toilet with all conveniences and the additional test arrangements regarding push buttons, steps and emergency equipment. For this purpose a questionnaire was developed for the assessment of the EUPAX segment and the additional test arrangements. With the help of this questionnaire it was possible to execute a quantitative and qualitative evaluation. During three test phases 67 experts and handicapped persons from 6 countries have evaluated the Industrial Design mock-up based on this questionnaire. The test group covered persons from North (Denmark) to the South (Italy) and from the West (Spain) to the Middle of Europe (Germany). This is especially important for the generalization (harmonisation) of the results for all European countries. According to COST 335 the information for people with reduced mobility should be clear, concise, accurate and timely. So that all information can be received from persons, they must be transferred on at least two of the three possible ways (acoustical, visual, tactile), a so called "2-sense-principle". Based on the results ergonomic specifications/ solutions for the ergonomic design of the access area, the acoustic, visual and tactile information and the emergency devices including the emergency communication system were developed, related to the benefiting passenger groups.

• 한국디지털정책학회:학술대회논문집
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• 2005.06a
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• pp.13-28
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• 2005

The purpose of this study is to explore conquest plans of the barrier and resistance in innovation management. This paper focuses to understand the model of innovation that reflects adoption process stages and identify the factors that drive the resistance of consumers. Whenever organizations try to plan and implement some kind of innovation in organizations, they confront resistance in many ways. By understanding innovation resistance, organizations can not only design better innovations but can develop strategies to reduce resistance. Thus they accelerate innovation. Understanding the factors that drive the innovation resistance has important implications for both theoretical development and managerial action. These results indicate that people resist innovation strongly when it betrays their value, needs and beliefs or when they felt the pressure on self-conviction and mental risk, loss, and lack of knowledge.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2005.05a
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• pp.758-761
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• 2005

본 연구에서는 고속도로 발생 소음특성을 측정하여 방음벽 설계 인자를 도출하기 위함이다. 이를 위해 인터체인지 및 영업소 인접부를 포함한 총 20개소를 선정하여 소음측정을 수행하였으며, 소음원의 주파수특성 및 일일 변동특성, 노면 종류에 따른 소음발생특성, 영업소 및 인터체인지 부근에서의 소음특성을 분석하여 방음벽 설계 인자를 도출하였다.

• Journal of Institute of Control, Robotics and Systems
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• v.20 no.1
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• pp.42-47
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• 2014

This paper investigates an adaptive approximation design problem for the tracking control of output-constrained non-affine pure-feedback systems. To satisfy the desired performance without constraint violation, we employ a barrier Lyapunov function which grows to infinity whenever its argument approaches some limits. The main difficulty in dealing with pure-feedback systems considering output constraints is that the system has a non-affine appearance of the constrained variable to be used as a virtual control. To overcome this difficulty, the implicit function theorem and mean value theorem are exploited to assert the existence of the desired virtual and actual controls. The function approximation technique based on adaptive neural networks is used to estimate the desired control inputs. It is shown that all signals in the closed-loop system are uniformly ultimately bounded.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2001.11a
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• pp.150-154
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• 2001

도로 및 철도에서 발생하는 소음을 저감시키기 위해 설치되는 방음벽은 흡음률, 투과손실 등과 같은 음향성능 외에도 태풍과 같은 강풍에 견딜 수 잇는 구조성능이 확보되어야 한다. 따라서, 본 논문에서는 지역별 특성 및 풍속을 고려한 풍압을 산정하는 방법을 소개하고, 풍압에 의한 방음판의 구조해석을 수행하였다. 또한, EN 1794-1의 규정에서 정하는 시험방법에 따른 방음판의 하중변형량 시험을 통하여 방음판의 구조성능을 평가하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 2002.08a
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• pp.75-78
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• 2002

Difference in the structure of AC PDP cells makes the cells have various discharge characteristics. Therefore, a ramp-reset must be adjusted for the stable driving of AC PDP. If any ramp-reset can reduce the difference in discharge characteristics between cells, the conditions of the address discharge could become almost the same. It is very important to understand these to design a good driving waveform. In this paper, we proved the mentioned facts with the change of barrier rib heights.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2003.11a
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• pp.306-314
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• 2003

Engineered barrier test facility is specially designed to demonstrate the performance of engineered barrier system for the near-surface disposal facility under the domestic environmental conditions. Comprehensive measurement systems for the water content, temperature, matric potential are installed within each test cell. In this study, short-term monitoring of the behavior of multi-layered cover system is implemented with artificial rainfall system. The periodic measurement data are collected and analyzed by a dedicated database management system, and provide a basis for performance verification of the disposal cover design.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.368-371
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• 2009

선박용 침몰방지용 부양백의 소재를 개발하는데 있어 부양백 내의 부양기체인 질소가스가 장기 유지특성 보유 소재(gas barrier properties), 코팅 경량 직물형태로서 경량성 보유 소재 기술, 장수명의 부양 백 소재 개발, Silicone/Nylon/Silicone 코팅 다층 구조의 고강도 유지 특성 유지 및 재활용성 특성 유지 부양백 소재를 개발하였다. 이들 소재를 개발하는데 있어 Nylon 직물별 물성 조사로 우리가 개발 목표로 하는 nylon의 denier 별로 구매하여 이들에 대한 기본물성인 인장특성, 내노화성, 기체투과도 및 복원성을 조사하였으며, Nylon 직물에 Silicone의 코팅시험을 실시하였고, 최적 코팅 silicone의 선정을 통해 최적의 균일한 두께 특성, 최적의 강도 유지특성 및 gas barrier 특성을 갖는 silicone 및 코팅두께를 선정하여 최종적으로 부양백용 gas barrier성 수지의 선정하였다.

• Proceedings of the KIEE Conference
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• 2006.07b
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• pp.631-632
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• 2006

This paper is written by research for the transient characteristics of the Single-phase Line-start permanent Magnet. The Single-phase Line-start permanent Magnet is most likely to substitute for Single-phase Induction Motor which is used about many appliance currently, because that has good points. For example, It has a Line-start of ability and a High-efficiency. And it need not power convergence device. The rotor of The Single-phase Line-start permanent Magnet has cage-bar with permanent magnet. This motor is started by cage-bar. When it entered synchronous condition, the rotor is rotated by the permanent magnet. But the design of the permanent magnet is very important, because the breaking torque of the permanent magnet interrupt to start a rotor. Finally, if Flux Barrier is not concerned, we do not get result of our object. Therefore this thesis is concerned about Flux Barrier.

• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.591-592
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• 2006

Schottky diodes for Radio-frequency identification (RFID) tag integration on chip were designed and fabricated using Samsung electronics System LSI standard $0.18{\mu}m$ CMOS process. Schottky diodes were designed as interdigitated fingers array by CMOS layout design rule. 64 types of Schottky diode were designed and fabricated with the variation of finger width, length and numbers with a $0.6{\mu}m$ guard ring enclosing n-well. Titanium was used as Schottky contact metal to lower the Schottky barrier height. Barrier height of the fabricated Schottky diode was 0.57eV. DC current - voltage measurements showed that the fabricated Schottky diode had a good rectifying properties with a breakdown voltage of -9.15 V and a threshold voltage of 0.25 V.