• Title/Summary/Keyword: direct test

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A Study on the Wearing and Purchasing Behavior of the Direct Import-Fashion Brand (직수입(直輸入) 의류제품(衣類製品)의 착용(着用).구매(購買)에 관(關)한 소비자(消費者) 실태(實態) 조사(調査) 연구(硏究) - 하이 패션을 중심(中心)으로 -)

  • Sohn, Hee-Soon;Kim, Hyo-Sook;Kim, Jin-Hong
    • Journal of Fashion Business
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    • v.5 no.1
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    • pp.87-96
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    • 2001
  • The purpose of this investigation is to investigate exact information for Korean consumer's the wearing and purchasing behavior of the imported fashion brand. The subjects were 118 female and shopper came shopping in Kang-Nam gu, Seoul. The subjects is buyer purchase the direct import-fashion brand. A questionnaire was surveyed through direct interviews. Data was processed by a computer(SAS) and analyzed by using frequency, percentage, $x^2$-test. The results of this investigation are as follows: 1. The consumer were surveyed to be more satisfy for the interior goods than satisfy for the direct import-fashion brand in the good's quality, character expression, lasting quality, brand, design, comfort etc. 2. The possession number were surveyed to possess mostly 1 - 2 suits. 3. The consumer's view for the clothing-size were surveyed to be a difference between imported fashion brand. 4. The consumer's selection for the clothing-size were surveyed to put on clothes directly, especially more young women than old women.

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A New Method for Monitoring Local Voltage Stability using the Saddle Node Bifurcation Set in Two Dimensional Power Parameter Space

  • Nguyen, Van Thang;Nguyen, Minh Y.;Yoon, Yong Tae
    • Journal of Electrical Engineering and Technology
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    • v.8 no.2
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    • pp.206-214
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    • 2013
  • This paper proposes a new method for monitoring local voltage stability using the saddle node bifurcation set or loadability boundary in two dimensional power parameter space. The method includes three main steps. First step is to determine the critical buses and the second step is building the static voltage stability boundary or the saddle node bifurcation set. Final step is monitoring the voltage stability through the distance from current operating point to the boundary. Critical buses are defined through the right eigenvector by direct method. The boundary of the static voltage stability region is a quadratic curve that can be obtained by the proposed method that is combining a variation of standard direct method and Thevenin equivalent model of electric power system. And finally the distance is computed through the Euclid norm of normal vector of the boundary at the closest saddle node bifurcation point. The advantage of the proposed method is that it gets the advantages of both methods, the accuracy of the direct method and simple of Thevenin Equivalent model. Thus, the proposed method holds some promises in terms of performing the real-time voltage stability monitoring of power system. Test results of New England 39 bus system are presented to show the effectiveness of the proposed method.

Functionally Graded Properties Induced by Direct Laser Melting of Compositionally Selected Metallic Powders (레이저 직접 용융 시 금속분말의 함량조정을 통한 경사물성 부여)

  • Han, S.W.;Ji, W.J.;Lee, C.H.;Moon, Y.H.
    • Transactions of Materials Processing
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    • v.23 no.5
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    • pp.303-310
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    • 2014
  • Functionally graded properties are characterized by the gradual variation in composition and structure through the volume of the material, resulting in corresponding gradation in properties of the material. Direct laser melting (DLM) is a prototyping process whereby a 3-D part is built layer-wise by melting metal powder with laser scanning. Studies have been performed on the functionally graded properties induced by direct laser melting of compositionally selected metallic powders. For the current study, quadrangle structures were fabricated by DLM using Fe-Ni-Cr powders having variable compositions. Hardness and EDX analysis were conducted on cross-sections of the fabricated structure to characterize the properties. From the analysis, it is shown that functionally graded properties can be successfully obtained by DLM of selected metallic powders with varying compositions.

Evaluation of patient transportation and response intervals among emergency medical squads (구급대 환자이송과 반응시간의 평가)

  • Park, Sang-Kyu;Uhm, Tai-Hwan
    • The Korean Journal of Emergency Medical Services
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    • v.22 no.3
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    • pp.47-54
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    • 2018
  • Purpose: The purpose of this study was to present evidence for quality management based on analysis of patient transportation and response intervals among emergency medical squads. Methods: The chi-square test was used to determine whether mental status and patient assessment affected direct medical control and hospital destination. One way analysis of variance was used to compare response intervals depending on mental status and patient assessment using data drawn from 1172 prehospital care reports. Results: There was a statistically significant relationship between mental status and direct medical control (p<.001); there was a statistically significant relationship between patient assessment and hospital destination (p=.011). However, there was no statistically significant relationship between mental status and hospital destination. The interval from arrival at the patient's side to departure from the scene showed a statistically significant difference (p<.001, p<.001), however, it took the longest time (16.8 minutes) in unresponsive patients. It showed a statistically significant difference (p<.001) in the interval from arrival at patient's side to departure from the scene depending on patient assessment; however, it took the longest time (9.6 minutes) in emergency patients. Conclusion: There was call for direct medical control based on patient assessment; however, patient transportation and response intervals were not appropriate.

Factor Influencing Employee Performance: The Role of Organizational Culture

  • DIANA, Ilfi Nur;SUPRIYANTO, Achmad Sani;EKOWATI, Vivin Maharani;ERTANTO, Arga Hendra
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.2
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    • pp.545-553
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    • 2021
  • This study examines the role of Leadership style and Organizational culture in predicting employee Performance. The aim of the research is: 1) to know the direct effect of Democratic Leadership on employee Performance, 2) to know the direct effect of Democratic Leadership on organizational culture, 3) to know the direct effect of Organizational culture on employee Performance, 4) to test the role of Organizational culture as mediation the effect of Democratic Leadership on employee Performance. The respondents were all employees at the Education Office East Java. The sampling method was used to collect data from 106 employees at the Education Office East Java, Indonesia, using surveys and questionnaires. The data obtained were analyzed using the Path Analysis with SPSS statistical software. The study had four findings. Firstly, Democratic Leadership has a significant effect on employee Performance. Secondly, Democratic Leadership also has a significant effect on Organizational culture. Thirdly, Organizational culture has a significant effect on employee performance. Fourthly, organizational culture mediates the effect of Democratic Leadership on employee Performance. Furthermore, the direct effect of Leadership style and the mediation role contribute to knowledge. The results showed that implementing Democratic Leadership supported by a conducive organizational culture guides employee to perform better.

The Impact of Financial Development Levels in Belt and Road Countries on Chinese FDI

  • Yuantao FANG;Renhong WU;Md. Alamgir Hossain;Xu LI
    • The Journal of Economics, Marketing and Management
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    • v.12 no.5
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    • pp.53-62
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    • 2024
  • Purpose: As globalization continues to advance, China's trade cooperation with foreign countries has become increasingly close, and its outward-oriented economy has entered a rapid development stage. With the launch of the Belt and Road Initiative in 2013, favorable conditions for China's overseas direct investment have been created. This paper is based on the financial development in Belt and Road countries. Research design, data and methodology: Using panel data from 2006 to 2020 covering 64 countries along the Belt and Road, the paper classifies regions and compares regions with higher levels of financial development. It provides descriptive statistics and employs the Fixed Effects Model (FEM) for regression analysis to thoroughly study the factors affecting China's Foreign Direct Investment (FDI). Results: The research results indicate that the size, efficiency, and structure of financial development all have a significant positive impact on China's FDI. Conclusions: However, factors such as trade openness (OPEN) and per capita disposable income (LnAGDP) did not pass the significance test, possibly because the level of openness of a country for outward foreign direct investment is not a significant factor to consider. Finally, based on the empirical findings, a series of policy recommendations are proposed to enhance China's FDI levels.

The Effect of Cement Milk Grouting on the Deformation Behavior of Artifcial Rock Joints (시멘트현탁액 주입에 의한 신선한 암석절리의 역학적 특성 변화)

  • 김태혁;이정인
    • Tunnel and Underground Space
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    • v.10 no.2
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    • pp.180-195
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    • 2000
  • Grouting has been practiced as a reliable technique to improve the mechanical properties of rock mass. But, the study of ground improvement by greeting is rare especially in jointed rock mass. In this study, joint compression test and direct shear test were performed on pure rock joint and cement milk grouted rock joint to examine the grouting effect on the property of rock joint. In the pure rock joint compression test, joint closure varied non-linearly with normal stress. But after cement milk grouting, the normal deformation characteristics of the joint was linear at the low normal stress level. As normal stress increased. deformation of the sample rapidly increased due to the stress concentration at the joint asperities. Peak shear strength of the grouted joint in low normal stress was higher than that of non-grouted joint due to the cohesion, decreased exponetially as the grout thickness increased. Thus after cement milk grouting, the failure envelope modified to a curve that has cohesion due to grout material hydration with decreased friction angle. Shear stiffness and peak dilation angle of the grouted joint decreased as the grout thickness increased. The peak shear strength from the direct shear test on grouted rock joint was represented by an empirical equation as a fuction of grout thickness and roughness mean amplitude.

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Effect of Relative Density and Fines Content on Pullout Resistance Performance of Drilled Shafts (상대밀도와 세립분 함유율이 현장타설말뚝의 인발저항 성능에 미치는 영향에 관한 연구)

  • You, Seung-Kyong;Hong, Gigwon;Jeong, Minwoo;Shin, Heesoo;Lee, Kwang-Wu;Ryu, Jeongho
    • Journal of the Korean Geotechnical Society
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    • v.34 no.4
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    • pp.37-47
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    • 2018
  • This paper described a results of direct shear test and pullout test by using soil supported by drilled shafts in order to evaluate the effect of relative density and fines content on pullout resistance performance of drilled shafts. The result of direct shear test showed that the variation characteristics of internal friction angle and cohesion could be confirmed quantitatively. The result of pullout test also showed that the effect of relative density and fines content on pullout resistance performance of drilled shafts was confirmed. That is, the contribution of the internal friction angle and cohesion of soils on the pullout resistance performance of drilled shafts was found to vary, when the fines content was about 13% based on results direct shear test and pullout test. Therefore, at design of drilled shafts, the effect of skin friction resistance should be considered on the influence factor of strength parameters ($c-{\phi}$) according to the fines content of soil.

Effects of direct and indirect bonding techniques on bond strength and microleakage after thermocycling (직접 부착법과 간접 부착법이 열순환 후 부착강도와 미세누출에 미치는 영향에 대한 연구)

  • Ozturk, Firat;Babacan, Hasan;Nalcaci, Ruhi;Kustarci, Alper
    • The korean journal of orthodontics
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    • v.39 no.6
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    • pp.393-401
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    • 2009
  • Objective: The purpose of this study was to compare the shear bond strength (SBS) of brackets and microleakage of a tooth-adhesive-bracket complex bonded with a direct and an indirect bonding technique after thermocycling. Methods: Fifty non-carious human premolars were divided into two equal groups. In the direct bonding group a light-cured adhesive and a primer (Transbond XT) was used. In the indirect-bonding group, a light-cured adhesive (Transbond XT) and chemical-cured primer (Sondhi Rapid Set) were used. After polymerization, the teeth were kept in distilled water for 24 hours and thereafter subjected to thermal cycling (500 cycles). For the microleakage evaluation, 10 teeth from each group were further sealed with nail varnish, stained with 0.5% basic fuchsin for 24 hours, and examined under a stereomicroscope. Fifteen teeth from each group were used for SBS testing with the universal testing machine and adhesive remnant index (ARI) evaluation. Data were analyzed using the Mann-Whitney U test, Chi-square test, and Fisher's exact test. Results: There were no statistical differences on SBS and microleakage between the two bonding techniques. The indirect bonding group had a significantly lower ARI score. Bracket failures were obtained between enamel-resin interfaces. Conclusions: The type of bonding technique did not significantly affect the amount of microleakage and SBS.

Effects of Transcranial Direct Current Stimulation on Lower Extremity Function of Stroke Patients : A meta-analysis of domastic research (뇌졸중 환자의 다리 기능에 대한 경두개직류자극의 효과: 국내 연구의 메타분석)

  • Lee, Jeong-Woo;Lim, Ji-Sun
    • Journal of The Korean Society of Integrative Medicine
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    • v.9 no.3
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    • pp.87-97
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    • 2021
  • Purpose : The purpose of this meta-analysis was to evaluate the effects of transcranial direct current stimulation on the lower extremity function of stroke patients. Methods : Domestic data were gathered from studies that conducted clinical trials associated with transcranial direct current stimulation and its impact on lower extremity function of stroke patients. A total of 592 studies published between 2012 and 2020 were identified, with 7 studies satisfying the inclusion data. The studies consisted of patient, intervention, comparison, and outcome (PICO) data. The search outcomes were items associated with muscle activity, balance, muscle strength and walking ability. Cochrane risk of bias (ROB) was used to evaluate the quality of 3 randomized control trials. The quality of 4 non-randomized control trials was evaluated using risk of bias assessment tool for non-randomized studies (RoBANS). Effect sizes in this study were computed as the corrected standard mean difference (SMD). A random-effect model was used to analyze the effect size because of the high heterogeneity among the studies. Egger's regression and 'trim-and-fill' tests were carried out to analyze the publishing bias. Results : The following factors had a large total effect size (Hedges's g=2.10, 95 %CI=1.54~2.66) involving transcranial direct current stimulation on stroke patients: muscle activity (Hedges's g=2.38, 95 %CI=1.08~3.68), balance (Hedges's g4=2.41, 95 %CI=1.33~3.60), walking ability (Hedges's g=1.54, 95 %CI=0.49~2.59), and muscle strength (Hedges's g=2.45, 95 % CI: 0.85~4.05). Egger's regression test showed that the publishing bias had statistically significant differences but 'trim-and-fill' test showed that there was still statistical difference. Conclusion : This study provides evidence for the effectiveness of transcranial direct current stimulation on the lower extremity in terms of muscle activity, balance, walking ability, and muscle strength in stroke patients. However, due to the low quality of studies and high heterogeneity factors, the results of our study should be interpreted cautiously.