http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
개별검색 DB통합검색이 안되는 DB는 DB아이콘을 클릭하여 이용하실 수 있습니다.
통계정보 및 조사
예술 / 패션
<해외전자자료 이용권한 안내>
- 이용 대상 : RISS의 모든 해외전자자료는 교수, 강사, 대학(원)생, 연구원, 대학직원에 한하여(로그인 필수) 이용 가능
- 구독대학 소속 이용자: RISS 해외전자자료 통합검색 및 등록된 대학IP 대역 내에서 24시간 무료 이용
- 미구독대학 소속 이용자: RISS 해외전자자료 통합검색을 통한 오후 4시~익일 오전 9시 무료 이용
※ 단, EBSCO ASC/BSC(오후 5시~익일 오전 9시 무료 이용)
The steering system with its challenging functions has to be successfully integrated and interlinked in the whole vehicle, with implementation and validation preferably occurring as early as possible. It is important to evaluate subjective criteria and translate them into objective criteria. The used X-in-the-Loop method stands for the seamless inclusion of all relevant components and systems - model, software and hardware - in the whole vehicle. As important functions have to be tested and validated, e. g. ADAS, the whole vehicle has to be examined in realistic driving situations.
Recently, Software design is developed by regular procedures. But these regular procedures are difficult to fulfill in the field. The field can be changed the project in coding or test step by the change of requirements or the occurrence of a problem. Model-Based Design is proposed this problem solution. Model-Based Design is recycled in various stages of design information. So, the design method can be modeling and simulation before to the real hardware. This Model-Based Design’s typical program is the MATLAB. The interior lamp of automotive is developed very much. Recent interior lamp is not simple. The interior lamp functions are only lamp ON or OFF function but also CAN communication, Data processing, Input processing, analysis and results output function. This function is working used MCU(microcontroller unit). Also center fascia is have very many function. So, this place can’t add function. For that reason, interior lamp is including something of user indirect control like bluetooth module. Reliability is important in interior lamp because of this complicated function. And this reliability of products raises the commercial value. So this paper is suggested development method of interior lamp system using MATLAB.
압밀현상을 예측하는데 있어, 압밀특성이 상이한 이질층의 존재 및 투수성에 대한 비선형 물질함수 특성을 고려하는 것은 기존 고전 압밀론에서의 많은 가정사항들을 극복하여 실제 현상에 더욱 부합하는 예측결과를 얻는데 있어 중요한 요소라 할 수있다. 본 연구에서는 이질층에 대한 경계면 방정식을 유도하고, 이를 기존 유한차분해석기법에 포함시켜 이질층에 대한 압밀해석을 실시하였다. 또한 이질층을 단일토층으로 환산하여 압밀예측에 이용하는 기존방법과 본 연구에 의한 압밀해석 결과를 비교, 분석하였다. 한편, 유효응력단계별 투수성의 비선형성을 고려하기 위하여 기존 선형 압밀이론을 이용하되, 각 유효응력 단계별 압밀계수에 관한 함수식을 적용하는 근사 비선형 해석기법을 개발하여 본 압밀해석에 적용하였다. The interface layer having different consolidation properties and nonlinear material function with permeability needs to be considered to predict consolidation behavior. In this study, interface equation between different layers has been derived and then applied to existing finite difference scheme for conducting consolidation analysis. These results have been compared with those by conventional method in which different layers are converted to single layer having conversion value of properties. Also, although the conventional consoilidation analysis is used to consider non-linearity of the permeability with effective stress, an approximated nonlinear method as a function of consoilidation coefficient with effective stress have been developed and applied to the consoilidation analysis for various cases.
Recently, IT industry is in fast growth. And very much IT convenient device for life is developed. This has been emerged as core technology in automotive industries. And some of these products have unintended malfunctions. because of the environment of driving, the device can cause a driver’s momentary carelessness. And this carelessness can cause a traffic accident. Wierwille & Tijerina(1996) studied about car crash in North Carolina. In study, a driver’s carelessness accident is 55.5% of 2,819 accidents. This result means accident can be happen by ordinary action like changing channel of radio. So, many people are studing a simple control method. This paper suggests this control method using IR sensor. The method can simply control increased devices. And It can decrease carelessness action for safe drive. Used IR sensor gets 3 IR LED data. The 3 IR LED is used to recognize hand motion like directions of right, left, up and down. These motions are used to control devices like radio, MP3, navigation. This is more safer control than before because this needs not to find the controller’s location exactly.
The human skeletal model is developed for the evaluation of comfortness of passenger car seat and potentiometers are adapted for the measurement of all the skeletal joints. The origin of the coordinates are located at the center of pelvis and all the joint coordinates are calculated from the measured joint angle data with using homogeneous transformation matrix. In calculating the lumbar positions using homogeneous transformation matrix, the position errors can be piled up because of measurement errors and A/D conversion resolutions of joint angle measuring systems. The lumbar positions are very sensitive in the seat comfortness evaluation that error budgeting method is adapted to reduce the measuring and calculating errors of joint positions. A connecting rod is adapted to measure the sternum position directly from the measured angle and length of connecting rod. Using homogeneous transformation matrix, the sternum position is calculated and it is compared with the result of transformation matrix which is calculated from the series of lumbar joints. The deviation between two results are evenly budgeted for each joints to compensate the measurement errors. The compensated result shows that the position errors of all the lumbar joints can be maintained below 10㎛ level.
준설매립지반은 다양한 현장조건과 준설토의 침강-퇴적-자중압밀 과정에서 형성되기 때문에 현장조건 및 준설토의 특성에 따라 준설매립지반의 거동이 좌우된다. 준설매립지반은 준설토의 특성에 따라 서로 다른 분리퇴적층이 조성되기 때문에 다양한 현장조건과 준설토의 침강-퇴적-자중압밀특성을 고려할 수 있는 실험방법이 필요하다. 이에 본 연구에서는 현장조건인 펌프의 투기속도와 준설토의 특성에 따른 준설토의 침강-퇴적 양상을 확인하기 위하여 원심모형실험과 Laser Particle Size Analyzer를 수행하였다. 그 결과 모래 준설토 및 조립질과 세립질 흙이 혼합된 준설토는 입자에 따라 분리 퇴적되는 양상으로 나타났으며, 점성 준설토는 매립공간의 바닥면과 평행하게 퇴적되는 양상으로 나타났다. Characteristics of sedimentation of dredged soil is depended on the field condition and characteristics of dredged soil because dredged fill ground was formed by various field condition, sedimentation and self-weight consolidation process of dredged soil. Dredged fill ground is formed as separated sedimentary layer by characteristics of dredged soil. Therefore, it requires some special test method to consider a various field condition, characteristics of sedimentation and self-weight consolidation of dredged soil. In this study, in order to identify the characteristics of sedimentation of dredged soil with disposing velocity geo-centrifuge test and laser particle size analyzer were performed. As a results, river and mixed dredged soil show the separation sedimentation by soil particle size. And sedimentation of clayey dredged soil is parallel to the bottom surface of dredged fill space.