• 제목/요약/키워드: methodological study

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Adjusting Practical Aims in Optimal Extended Double Sampling Plans

  • Ko, Seoung-gon
    • Communications for Statistical Applications and Methods
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    • 제6권1호
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    • pp.143-150
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    • 1999
  • Ko(1998) proposed a procedure to enhance the efficiency of double sampling plans by allowing second-stage sample size and critical region to depend on first-stage evidence using constraint optimization approaches. In this study further developments of such plans by incorporating several practically possible researcher's aims into the optimization are considered. Comparisons are made with the optimal ordinary double sampling plan and also among them It is observed that it is to some extent possible to match the details of the optimization to certain qualitative methodological aims.

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A SURVEY ON MODEL W&A OF SYSTEM SIMULATION

  • Ying, Wang-Xiao;Ming, Zhang-Qing
    • 한국시뮬레이션학회:학술대회논문집
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    • 한국시뮬레이션학회 2001년도 The Seoul International Simulation Conference
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    • pp.391-395
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    • 2001
  • Model verification, validation and accreditation (VV&A) of system simulation are detailedly discussed in this paper. The necessity of VV&A is explained by analyzing the factors on which the model and the reality are discrepant. The W&A technology is expounded in detail not only in the conceptual aspect but also in the methodological aspect. Some principles, difficulties and problems that should be paid attention to are discussed concretely and reasonedly. The paper is expected to be instructional and helpful to the VV&A study.

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생태·환경관련 포털사이트를 통한 환경공간정보구축 (Methodological study of Spatial Map Construction for Environment)

  • 한승희
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2017년도 춘계 종합학술대회 논문집
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    • pp.243-244
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    • 2017
  • 도시계획과 환경정책의 경우 장기적인 고려가 필요하므로 도시기본계획과 환경보존계획을 주기적으로 수립해야만 한다. 특히 환경보존계획의 경우 환경속성정보의 분석은 물론 환경공간분석을 통해 대상영역에 대한 환경관력 공간분석이 필요하다. 그러나 환경관련자료가 분산되어 있어 데이터베이스구축이 불편하다. 본 연구에서는 환경공간분석자료구축을 위한 데이터 소스를 정리하고 효율적은 구축방법과 함께 개선방향을 제시하고자 한다.

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AHP기법을 이용한 시설원예의 적지평가모델 개발 (Depvlopment of the Evaluation Model of Location Suitability for Protected Horticulture by AHP Method)

  • 황한철;김정식
    • 한국농촌계획학회:학술대회논문집
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    • 한국농촌계획학회 1998년도 임시총회 및 추계 학술논문발표회
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    • pp.9-11
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    • 1998
  • It is necessary to evaluate the location suitability of protected horticulture facilities to guide and/or plan new protected horticulture facilities in rural areas.0 this study, as one of methodological approaches for objective and systematic evaluation for location suitability of protected horticulture, the evaluating model for location suitability of protected horticulture was formulated using AHP (Analytic Hierarchy Process) as the base technique. The evaluation model was made in three different selected regions; suburban, plain, and mountainous. The results showed that there were significant differences in evaluation model of location suitability for':ed horticulture among the three regions.

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척수장애인의 성적적응과 관련요인에 관한 모형구축 (Model Construction of Sexual Adjustment of Patients with Spinal Cord Injury)

  • 강현숙;고정은;서연옥
    • 대한간호학회지
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    • 제30권4호
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    • pp.1018-1034
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    • 2000
  • The purpose of this study was to construct model of sexual adjustment in people with spinal cord injury and to determine factors that relate to sexual adjustment using methodological triangulation. A total of 134 persons who were registered members of spinal cord injury organization and admitted rehabilitation unit in the hospital were included in the study. Participants answered questionnaire concerning importance of life events, sexual concern, sexual adjustment. Qualitative data were collected through semi-structured indepth interviews from 10 individuals with spinal cord injury who were previously included in the quantitative study. Constant compatative method was used to analyze the data. The results were as follows : 1) With respect to eleven other areas of life, sex life ranked the sixth and economic status ranked the highest in terms of importance. However social life ranked the lowest among the 11areas. 2) Among seven topics related to sexuality were methods and techniques to achieve sexual satisfaction, and helping a partner cope emotionally with limitation on sexual dysfunction was the second greastest. 3) The mean score for sexual adjustment was 19.47 which can be considered. 4) A process on how individuals with spinal cord injury adjust to their changed sexual life immerged from the qualitative data. It includs 4 stages: 'stage of loss' 'stage of endeavoring' 'stage of effort' and 'stage of adjustment'. Categories showing context for the action/interaction strategies were 'steadiness' and 'rediscovery as a sexual being'. There were three factors which may stimulate the adjustment process while the others may interrupt it. Those factors included personal matters, family matters and social matters. The individuals may follow each stage step by step but may go back to the previous step depending on the outcomes of their adjustment. 5) There were three factors which may stimulate the adjustment process while the others may interrupt it. Those factors included personal matters, family matters and social matters.

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실내 건축 설계를 위한 CAD 소프트웨어 개발에 관한 연구-CAD로부터 가상현실 GRAPHIC PROGRAM으로의 전환을 통하여- (A Study on the Development of Computer Aided Design Software for Interior Architectural Design-From CAD(Computer Aided Design) to Virtual Reality of Transforting)

  • 이남수
    • 한국실내디자인학회논문집
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    • 제12호
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    • pp.40-49
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    • 1997
  • What's the direction of INTERIOR ARCHITECTURAL DESIGN in 21 Century High Tech\ulcorner The purpose of this research is to show not only practical use of Computer Graphic(CG) as simple tool function, but offering conversation with computer and other ways of method. When we consider poor CG market, investment on the research of VR(Virtual Reality) is the most urgent. The investment on VR will solve various problems. Firstly. It will solve the problems drived from Interior design process by making spatial images like reality. Secondly, It will solve high wages and financial difficulties caused by raise cost funds. Thirdly, It prevents in a road from foreign company that will bring enormous program, caused by opening the domestic market. Also, It help interior designer check in advance the problems in constructure through showing him a supposed imagination including the system and location of equipments. But it is reality that even ordinary American can't offer VR(Virtual Reality) System. We should have noted that it is normal to spend 10 billion won for such presentation as Model House in the large corporation. We must acknowledge that it is such a waist of money nationally. Therefore, investment on CG & VR System is essential in order to save cost more effective presentation & interior design. We will see great result within a year. As we can see, there is huge area we have make develop. One of them is specific technical plan on VR System and study of flow chart. We close with simple methodological way to use VR System and will study Computer System. Which is fitting to CG that we have to solve the link of hardware and software on VR System\ulcorner We know from the cases in other countries that continuous research on this subject has great value for Interior Architectural Design and its effective use. When we try hard not only for methodological use but practical use, the purpose of CG and VR System will be a factor to contribute on this subject for better Interior design & presentation.

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Analysis of Cross Sectional Ease Values for Fit Analysis from 3D Body Scan Data Taken in Working Positions

  • Nam, Jin-Hee;Branson, Donna H.;Ashdown, Susan P.;Cao, Huantian;Carnrite, Erica
    • International Journal of Human Ecology
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    • 제12권1호
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    • pp.87-99
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    • 2011
  • Purpose- The purpose of this study was to compare the fit of two prototype liquid cooled vests using a 3D body scanner and accompanying software. The objectives of this study were to obtain quantitative measurements of ease values, and to use these data to evaluate the fit of two cooling vests in active positions and to develop methodological protocol to resolve alignment issues between the scans using software designed for the alignment of 3D objects. Design/methodology/approach- Garment treatments and body positions were two independent variables with three levels each. Quantitative dataset were dependent variables, and were manipulated in 3x3 factorial designs with repeated measures. Scan images from eight subjects were used and ease values were obtained to compare the fit. Two different types of analyses were conducted in order to compare the fit using t-test; those were radial mean distance value analysis and radial distance distribution rate analysis. Findings- Overall prototype II achieved a closer fit than prototype I with both analyses. These were consistent results with findings from a previous study that used a different approach for evaluation. Research limitations/implications- The main findings can be used as practical feedback for prototype modification/selection in the design process, making use of 3D body scanner as an evaluation tool. Originality/value- Methodological protocols that were devised to eliminate potential sources of errors can contribute to application of data from 3D body scanners.

누설특성을 고려한 GDI 엔진용 연료펌프의 고압생성 증진에 관한 연구 (A Study on the Pressure Increment of Fuel Pump for GDI Engines Considering Leakage Flows)

  • 나병철;김병수;최석우
    • 대한기계학회논문집B
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    • 제24권6호
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    • pp.785-791
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    • 2000
  • GDI (Gasoline Direct Injection) engines are considered as one of the candidates for next generation engines of passenger cars, which reduce exhaust emissions and fuel consumption. In GOI engines, a high-pressure gasoline supply system is required to directly inject the fuel to combustion chambers. Because of low lubricity of gasoline fuel, the clearance between a plunger and a barrel in GDI fuel pumps is too wide to achieve smooth hydrodynamic lubrication. Thus, it is difficult to generate high-pressure condition in GDI fuel pump since large amount of leakage flow occurs between the plunger and the barrel In this study, an optimum plunger design is presented to minimize leakage in the aspect of flow control. This paper analyzes leakage flow characteristics in the clearance to improve pumping performance of GDI fuel pumps. Effects of groove in the plunger are studied according to variations of depth and width. Evaluations of pumping performance are determined by the amount of pressure drop in the leakage path assuming a constant leakage flows. Both of turbulence and incompressible models are introduced in CFD (Computational Fluid Dynamics) analysis. Design parameters have been introduced to minimize leakage in limited space, and a methodological study on geometrical optimization has been conducted. As results of CFD analysis in various geometrical cases, optimum groove depths have been found to generate maximum sealing effects on gasoline fuel between the plunger and the barrel. This procedure offers a methodological way of an enhancement of plunger design for high-pressure GDI fuel pumps.

지력증진(智力增進)에 관(關)한 방법론적(方法論的) 연구(硏究) (Methodological Research in Development of Intelligence)

  • 김장현
    • 대한한방소아과학회지
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    • 제13권2호
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    • pp.93-110
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    • 1999
  • The intelligence is the capacity to recognize the things and implies the meaning of abstract thought, learning and adaptability to the circumstance. Recently, as the promotion of learning ablility and memory attracts many people's attention, many studies of this have been accomplished but the pharmacological methods could not promote the intelligence and memory. In oriental medical theory, the human body is composed of four elements - essence, energy, sprit, blood and among these elements, sprit is considered as the concept of vital energy and mind. Especially, from the Jang-Fu physiological point of view, the memory is closly related with the heart and kidney In oriental medicine, some experiments on animal and literature studies on the subject of memory promotion have done. But because of difference in memory mechanism between man and animal, it is not in reason to apply the result of experiment on animal to human. Therefore I have methodological study of memory promotion to set up the concept of oriental medicine and experimental theory about this and can obtain such conclusion. 1. The oriental medical therapy for memory promotion is following. nourishing the heart and blood, regulating the function of spleen, relieving the mental stress, reinforcing the heart and kidney, invigorating and enriching the blood. 2. The insufficient intelligence in a child is considered to not be full and in an old man, it is considered to decline by degrees. 3. It is needed to molecular biological study of neurotransmitter after the using of oriental medical therapy. 4. It is possible to study using the genetic mutation or observing the collateral of brain nerve cell.

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