• Title/Summary/Keyword: Side structure

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Conceptual Description of Hierarchical Structure in Discourse (담화 내 계층 구조의 개념 구조적 기술)

  • 구유선
    • Korean Journal of Cognitive Science
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    • v.11 no.3_4
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    • pp.23-32
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    • 2000
  • The distinction between main structure and side structure in discourse which was central to narrative studies has lacked an adequate. formal definition. This study supports the contention that there exists a hierarchical structure between discourse units constituting main structures, substructures, and side structures. The aim of this study is twofold: (j) to present an adequate. formal definition that provides a general identification criterion for distinguishing main structure from substructure and side structure proposed by Kuppevelt, and (jj) to propose conceptual relations representing hierarchical structures in discourse based on Sowa's Conceptual Structure Theory. The proposed conceptual relations which represent hierarchy and pragmatic relations of discourse segments are: DIGR (digression). T-SHFT (topic shift), and FRAM (frame). This s study shows pragmatic functions can be incorporated within CST in a systematic way.

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Characteristics of Vehicle Structure Deformation and Body Injury caused by Side Impact Test using AE-MDB (AE-MDB 시험결과에 따른 인체상해 및 차체 특성)

  • Kim, Doyup;Lee, Jaewan;Chang, Hyungjin;Yong, Boojoong
    • Journal of Auto-vehicle Safety Association
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    • v.3 no.2
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    • pp.34-41
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    • 2011
  • Side collisions (or side crash) account for 51.6% of all car to car accidents occurred in 2010. It is necessary to analyze those vehicles' structure deformation and passengers' injuries in the side collisions. A moving barrier (950kg) is currently used in the KNCAP side impact test. However, in order to enhance a passengers' safety in the side collisions, we introduce an AE-MDB (1500kg) which provides more severe conditions for this test. In this study, the test results using both barriers are compared and analyzed.

Digital Image Processing of Side Scan Sonar for Underwater Man-made Structure (수중 인공구조물에 대한 사이드스캔소나 탐사자료의 영상처리)

  • Shin, Sung-Ryul;Lim, Min-Hyuk;Kim, Kwang-Eun
    • Journal of Advanced Marine Engineering and Technology
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    • v.33 no.2
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    • pp.344-354
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    • 2009
  • Side scan sonar using acoustic wave plays a very important role in the underwater, sea floor, and shallow marine geologic survey. In this study, we have acquired side scan sonar data for the underwater man-made structures, artificial reefs and fishing grounds, installed and distributed in the survey area. We applied digital image processing techniques to side scan sonar data in order to improve and enhance an image quality. We carried out digital image processing with various kinds of filtering in spatial domain and frequency domain. We tested filtering parameters such as kernel size, differential operator, and statistical value. We could easily estimate the conditions, distribution and environment of artificial structures through the interpretation of side scan sonar.

A Study on Side Impact Simulation Technique using Simple Beam Model (단순 보모델을 이용한 측면충돌 해석기술 연구)

  • 강성종
    • Transactions of the Korean Society of Automotive Engineers
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    • v.5 no.5
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    • pp.170-177
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    • 1997
  • In this study, an analysis technique using simple beam model for predicting structure crashworthiness of the passenger car side impacted with an angle by another passenger car was investigated. The simple model was composed of major beam-like side structure which carry almost all side impact load. A procedure of component collapse test, calculation of load carrying capability and dynamic simulation was carryed out sequentially. Transient dynamic algorithms and a computer program to simulate deformations and motions of the impacted car was developed. The developed procedure was applied to a 3 door passenger car side impacted with an angle of 75 degree and the analysis results show good agreements with the actual test results.

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POSSIBILITIES TO IMPROVE TRANSIENT GEAR SHIFT NOISE (SHIFT CLONK) IN A PASSENGER CAR

  • BIERMANN J. W.;REITZ A.
    • International Journal of Automotive Technology
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    • v.6 no.1
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    • pp.23-28
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    • 2005
  • The presented investigation of shift clonk in a vehicle with front-wheel drive shows how a detailed analysis of the complete acoustic system with respect to excitation, transfer and radiation foremost enables possibilities of noise reduction to be worked out. One of the most important basics for the shift clonk analysis was a synchronous measurement of both, torsional vibrations in the drive train on the excitation side as well as airborne and structure-borne noise signals on the transfer and radiation side. Thus, root causes could be identified and improvement measures of the internal shift system could be worked out. An analysis of the transfer paths by means of airborne and structure borne noise measurements made evident that the side shafts were responsible for the disturbing frequencies in the transfer paths. With the help of the FE-simulation it was possible to develop measures of structure optimisation for the side shaft system. The realisation of these measures clearly reduced the shift-noises in the vehicle interior.

An experimental study on the wake structure behind a van type vehicle (Van형 자동차의 후류구조에 대한 실험적 해석(와류 형성을 중심으로))

  • 성봉주;장병희
    • Journal of the korean Society of Automotive Engineers
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    • v.10 no.3
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    • pp.51-59
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    • 1988
  • The wake structure behind a van type vehicle was studied experimentally with a 5-hole yawhead probe. Through an effective calibration method of the 5-hole yawhead probe, the flow properties such as velocity vector, total pressure and static pressure were obtained on two cross sections within the wake. These results combined with the surface flow visualization performed in the previous study, yielded some information about the wake structure. When the model was placed in a stream with zero yaw angle, two counter rotating vortices were observed behind the model which pull down the surface flow on each side of the model. With increasing the yaw angle, the surface flow on the windward side changed to divide the flow in two directions, one flows upward on the upper part and the other flows downward on the lower part of the windward side. Hence a new weak vortex was created on the upper windward side, which resulted 3 vortices within the wake. The size and the strength of the vortices increased with yaw angle.

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Optimization of Side Gate in the Design for Nano Structure Double Gate MOSFET (나노 구조 Double Gate MOSFET 설계시 side gate의 최적화)

  • 김재홍;고석웅;정학기
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.11a
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    • pp.490-493
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    • 2002
  • In this study, we have investigated optimum value for side gate length and side gate voltage of double gate (DG) MOSFET with main gate and side gate. We know that optimum side gate voltage for each side length is about 3V. Also, we know that optimum side gate length for each main gate length is about 70nm. We have presented the transconductance and subthreshold slope for each side gate length. We have simulated using ISE-TCAD tool for characteristics analysis of device.

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Bran Structure and Water Uptake Rate of Japonica and Tongil-type Brown Rices (일반계와 통일계 현미의 겨층구조와 수분 흡수 속도)

  • Lee, Soo-Jeung;Kim, Sung-Kon
    • Applied Biological Chemistry
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    • v.37 no.2
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    • pp.94-99
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    • 1994
  • Bran structure and water uptake rate for brown rices of thirteen japonica and twelve Tongil cultivars were investigated. The japonica type was shorter in length and had lower value in the ratio of length to width than Tongil one. No differences were observed in width and weight between the two types. The number of aleurone layer and the thickness of bran layer were higher in dorsal side than in ventral side in all rice cultivars. The structure in ventral side was similar but the number of aleurone layer in dosal side was higher in japonica samples. There were no significant differences in water uptake rates showed no correlation with the bran structure.

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A Study on the Injection Characters of The Back Side Grouting Method by a Model Test (모형실험을 통한 배면지수 그라우팅기법에 관한 연구)

  • Chun, Byung-Sik;Choi, Choon-Sik
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.6 no.2
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    • pp.175-182
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    • 2002
  • The cement injection technology on the purpose of ground reinforcement and cut-off has been used in construction sites until now. However, recently it is applied to prevent leakage of underground structure. In this study, applicability of the back side waterproof grouting method was verified through performing field model tests and reviewing case histories. From the results of this study, injection shape of the back side waterproof grouting method was appeared to be root type, and waterproof effect by injection of cement grout material was excellent because grout material infiltrated into boundary between wall of structure and back side ground to be waterproof layer. Components influencing infiltration of injection material are type of soil and degree of compaction. For effective injection, injection pressure has to vary gradually from high pressure to low pessure and small quantity of injection material has to be injected for long times. Also, spacing of injection hole must be designed considering condition of back side ground, injection area, W/C ratio, the number of injection and injection pattern properly.