• Title/Summary/Keyword: Selecting Methods

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Analysis of Factors for Selecting Construction Methods for Underground Structures (지하구조물의 공법선정을 위한 요인분석)

  • Kang, Hyun-Jung;Rhim, Hong-Chul;Park, Sang-Hyun;Lee, Ghang
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.04a
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    • pp.37-40
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    • 2007
  • As a demand for underground structure is increasing with more parking and retail spaces required. Various construction methods are reviewed and selected for each specific site for economical and fast construction. In this study, factors for selecting construction methods were categorized for substructure construction. Construction processes of substructure are consisted of methods for excavation, earth retaining systems, and placement of slabs. Factors for the selection of substructure construction method are the condition of surrounding, geotechnical, information and constraint by comfortness for others nearby. After survey for the construction data of 5 different sites, analysis about reliable substructure construction selection method was suggested.

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Statistical comparison of the analytical results of heavy metal contents in the riverside soil from the various methods of selecting sampling points (강변 토양내 중금속 분석에서 시료 채취 지점 선정방법에 따른 결과들의 통계적 비교)

  • 박광재;문병철
    • Journal of Environmental Science International
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    • v.6 no.1
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    • pp.33-44
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    • 1997
  • In investigating heavy metal contents at specific areas, the method of selecting sampling points is Important A general method is, according to the law , random sampling of zigzag-form in the selected field. In this work, we studied whether the measured values obtained from a certain method of selecting sampling points is a representative of heavy metal contents in the selected field or not. The selected field for this study is located on the lower Yangsan-river: Gasan-li, Mulgum-myon, Yangsan-gun, KyoungNam, 1 km away from the mi, h stream of Nakdong river. The heavy metals investigated were Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn. The inductively coupled plasma(ICPI atomic emission spectrometer was used to measure these metals quantitatively. The number of total sampling points were 24. We compared the total mean values with the mean obtained from various methods of selecting sampling points.

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A Study on the Selecting Attributes for Serviced Residences (서비스드 레지던스의 선택속성)

  • Kang, Dong-Won;Hong, Hyung-Ok;Lee, Hyun-Jung
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2011.04a
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    • pp.267-272
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    • 2011
  • The purpose of this study was finding selecting attributes of serviced residence and suggesting right direction of serviced residences. Research methods weresocial survey research with questionnaire and field survey. Field survey was conducted from September 20, 2010 to November 9, 2010 on 6 serviced residences. 106questionnaire survey data collected near by CBD. SPSS 18.0 program was used for Statistical analysis. Majorfinding were following; analysis methods were Frequency, $x^2$-test and ANOVA. Selecting attributes were divided into general attributes, facilities, services and individual units. First, pleasant atmosphere was the most important item amonggeneral attributes. Second, buffet restaurant was the most important items among facilities. Third, mail delivery service was the most important item among services. Fourth comfort was the most important item among individual units. In conclusion, serviced residences need more elaborate management, improvement of lobby lounge, provision of optional services and comfortable environment of individual units.

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A method of selecting an active factor and its robustness against correlation in the data

  • Yamada, Shu;Harashima, Jun
    • International Journal of Quality Innovation
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    • v.4 no.2
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    • pp.16-31
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    • 2003
  • A reducing variation of quality characteristics is a typical example of quality improvement. In such a case, we treat the quality characteristic, as a response variable and need to find active factors affecting the response from many candidate factors since reducing the variation of the response will be achieved by reducing variation of the active factors. In this paper, we first derive a method of selecting an active factor by linear regression. It is well known that correlation between factors deteriorates the precision of estimators. We, therefore, examine robustness of the selecting method against the correlation in the data set and derive an evaluation method of the deterioration brought by the correlation. Furthermore, some examples of selecting and evaluation methods are shown to demonstrate practical usage of the methods.

A Study on 'Specially Selecting Yangming' in 『Suwen·Weilun』 (『소문(素問)·위론(痿論)』의 독취양명(獨取陽明)에 대한 고찰)

  • Ahn, Jin-hee;Suh, Jun-ho
    • Journal of Korean Medical classics
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    • v.32 no.4
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    • pp.91-107
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    • 2019
  • Objectives : The purpose of this paper is to study how medical experts understood 'Specially Selecting Yangming' for clinical application. Methods : After collecting medical texts related to 'Specially Selecting Yangming', its meaning and clinical application were examined thoroughly. Results : 1. The meaning of 'Specially Selecting Yangming' was identified in different ways according to the meaning of 'Yangming.' It was perceived as Stomach, Yangming meridian, Stomach meridian of Foot Yangming, Spleen and Stomach, Intestine and Stomach by medical experts. 2. Chen Wu-ze and Liu Wan-su understood Wei disease as a form of consumption, and regarded 'Specially Selecting Yangming' as tonifying Yangming while Zhang Zi-he put emphasis on Communicating Stomach Qi(胃氣) through vomiting or purgation. Sun Yi-kui insisted on applying it as a precaution. 3. Li Dong-yuan emphasized the cause of Wei disease to be Damp-Heat in the Summer and suggested Qingshuyiqitang and Qingzaotang as remedy. 4. Zhu Zhen-heng's Purging the South and Reinforcing the North is a more fundamental way of treating Wei disease by stimulating the Water-Fire Axis. Conclusions : Through a diachronic study of 'Specially Selecting Yangming' and its remedy, most medical experts regarded 'Specially Selecting Yangming' as tonifying Yangming, but tonifying Liver and Kidney was thought to be a more fundamental treatment.

Selecting Guides on Compression Parameters in KOMPSAT-2 MSC

  • Lee, Jong-Tae;Lee, Sang-Gyu;Lee, Sang-Taek
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1102-1104
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    • 2003
  • KOMPSAT-2 provides two different imaging methods, direct imaging and playback imaging. For playback imaging operation KOMPSAT-2 has a storage device called DCSU (Data Compression & Storage Unit) to hold images taken before. Compression function is necessary to save memory space and data transmission time to ground station. There are several parameters for compression like compression ratio. Due to DCSU architectural characteristics and KOMPSAT-2 operational limitations, there are some restrictions on selecting compression parameters. This paper will provide selecting guides on compression parameters.

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3n-p Fractional Factorial Design Excluded Some Debarred Combinations

  • Park, Byoung -Chul
    • Communications for Statistical Applications and Methods
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    • v.6 no.3
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    • pp.695-706
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    • 1999
  • When fractional factorial experiments contain some infeasible treatment combinations called debarred combinations we should construct experimental designs so that those debarred combinations are to be excluded by selecting defining contrasts appropriately. By applying Franklin(1995)'s procedure for selecting defining contrasts to Cheng and Li(1993)'s method this paper presents a method of selecting defining contrasts to construct orthogonal 3-level fractional factorial experiments which exclude some debarred combinations.

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Selecting usability evaluation methods (사용성 평가 방법들의 선택에 관한 연구)

  • 박경수;임치환
    • Proceedings of the ESK Conference
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    • 1996.10a
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    • pp.153-159
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    • 1996
  • Usability evaluation can be valuable tool for analyzing and improving computer software. Various usability evaluation methods have been developed in the fields of human-computer interaction and software ergonomics. Although there are several useful methods available, designers or engineers engaged in usability evaluations should really select the most suitable methods for each specific system being evaluated. Even different systems within the same organization may require different evaluation methods to maximize the quality of the data obtained from each evaluation. In this paper, the taxonomy of evaluation methods based on the development life cycle is presented and comparative analysis between methods is performed. In addition, the implications for selecting appropriate usability methods and using them collectively are discussed.

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A Role of Local Influence in Selecting Regressors

  • Kim, Myung-Geun
    • Communications for Statistical Applications and Methods
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    • v.13 no.2
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    • pp.267-272
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    • 2006
  • A procedure for selecting regressors in the linear regression model is suggested using local influence approach. Under an appropriate perturbation scheme, the effect of perturbation of regressors on the profile log-likelihood displacement is assessed for variable selection. A numerical example is provided for illustration.