• 제목/요약/키워드: Internal Design Factor

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Development and Validation of a Multidimensional Measure of Positive Body Image

  • Lee, Minsun;Lee, Hyun-Hwa
    • Journal of the Korean Society of Clothing and Textiles
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    • v.46 no.4
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    • pp.704-722
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    • 2022
  • Current studies validate the Body Positive Scale (BP Scale) as a self-assessment instrument that captures four dimensions of the positive body image construct. We developed and evaluated a 17-item BP Scale using two focus group interviews and four independent samples (n = 1,379) of Korean women who completed online survey questionnaires. We generated an initial pool of items via literature review, content validation with experts, and focus group interviews, subsequently refining the items through exploratory analysis (Study 1). We confirmed the BP Scale's underlying dimensions with young Korean female samples (Study 2, Study 4) and with a community sample (Study 3). We also examined the construct validity, internal consistency, and test-retest reliability over a six-week interval. Overall, the results supported that the four-factor BP Scale demonstrates adequate validity and reliability in measuring positive body image among Korean women. The BP Scale provides a method for researchers and practitioners to understand and assess individuals' positive body image in a multifaceted manner.

Feasibility study of an earth-retaining structure using in-situ soil with dual sheet piles

  • An, Joon-Sang;Yoon, Yeo-Won;Song, Ki-Il
    • Geomechanics and Engineering
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    • v.16 no.3
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    • pp.321-329
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    • 2018
  • Classic braced walls use struts and wales to minimize ground movements induced by deep excavation. However, the installation of struts and wales is a time-consuming process and confines the work space. To secure a work space around the retaining structure, an anchoring system works in conjunction with a braced wall. However, anchoring cannot perform well when the shear strength of soil is low. In such a case, innovative retaining systems are required in excavation. This study proposes an innovative earth-retaining wall that uses in situ soil confined in dual sheet piles as a structural component. A numerical study was conducted to evaluate the stability of the proposed structure in cohesionless dry soil and establish a design chart. The displacement and factor of safety of the structural member were monitored and evaluated. According to the results, an increase in the clearance distance increases the depth of safe excavation. For a conservative design to secure the stability of the earth-retaining structure in cohesionless dry soil, the clearance distance should exceed 2 m, and the embedded depth should exceed 40% of the wall height. The results suggest that the proposed method can be used for 14 m of excavation without any internal support structure. The design chart can be used for the preliminary design of an earth-retaining structure using in situ soil with dual steel sheet piles in cohesionless dry soil.

An Analysis of Formative Properties for the Hat and the Fashion Image in the Fashion Collection (패션 컬렉션에 나타난 모자와 패션 이미지에 대한 조형성 분석)

  • Kang, Kyung-Ja;Jeong, Hae-Sun
    • The Research Journal of the Costume Culture
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    • v.14 no.1
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    • pp.64-78
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    • 2006
  • The purpose of this study is to set a characteristic design by analyzing formative properties for the hat and fashion image shown in fashion collections from the S/S season of 1998 to the F/W season of 2004 in recent seven years. For the study, the 96 stimuli which found frequently in fashion collection were selected. The examines for the image evaluation were women college students majoring fashion design related fields and living in Seoul, Gyeonggi-do, and Gyeongsangnam-do. Data collection was performed in August 2004. As statistical methods for data analysis, internal consistency method, Factor Analysis, MANOVA were used. Based on the analysis of 31 pairs of adjectives for elucidating the total 96 stimuli which were devised by altering the types of garment, the relation between a garment and a color of hat, the types of hat, the length of hair, and the material and design of garment, five factors or attractiveness, gracefulness, concentration, cuteness, and hardness and softness were deduced. And it showed much difference in the types of garment, the relations between a garment and a color of hat, the types of hat, the length of hair, and the material and design of a garment.

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Cervical design effect of dental implant on stress distribution in crestal cortical bone studied by finite element analysis (유한요소법을 이용한 임플란트 경부 디자인이 골응력에 미치는 영향 분석)

  • Kim, Kyung-Tak;Jo, Kwang-Heon;Lee, Cheong-Hee;Yu, Won-Jae;Lee, Kyu-Bok
    • The Journal of Korean Academy of Prosthodontics
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    • v.47 no.4
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    • pp.385-393
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    • 2009
  • Statement of problem: High stress concentration on the crestal cortical bone has been regraded as a major etiologic factor jeopardizing long term stability of endosseous implants. Purpose: To investigate if the design characteristics of crestal module, i.e. internal type, external type, and submerged type, affect stress distribution on the crestal cortical bone. Material and methods: A cylindrical shaped implant, 4.3 mm in diameter and 10 mm in length, with 3 different crestal modules, i.e. internal type, external type, and submerged type, were analysed. An axisymmetric scheme was used for finite elment formulation. A vertical load of 50 N and an oblique load of 50N acting at $45^{\circ}$ with the implant's long axis was applied. The peak crestal bone stress acting at the intersection of implant and crestal bone was compared. Results: Under vertical load, the crestal bone stress was high in the order of internal, external, and submerged types. Under the oblique loading condition, it was in the order of internal, submerged, and external types. Conclusion: Crestal module design was found to affect the level of the crestal bone stresses although the actual amount was not significant.

Development of a Scale to measure the Effectiveness of Oriental Nursing Education (한방간호교육의 평가 도구 개발)

  • Han Sang-Sook;Kim Won-Ock;Hyun Kyung-Sun;Won Jeong-Sook;Lee Jong-Soo
    • Journal of Korean Academy of Nursing
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    • v.35 no.2
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    • pp.362-371
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    • 2005
  • Purpose: The aim of this study was to design and evaluate a scale for measuring reliability and validity in the field of oriental nursing education. Method: A questionnaire was administered to 495 university nursing students using a convenience sampling method. The period of time for collecting data was from September 2003 to January 2004. Result: The derived outcome tool consisted of 6 factors and 22 inquires on the basis of a conceptual frame of three domains (knowledge, attitude, and skill), As a result of the item analysis, 22 items were selected and the internal consistency alpha coefficient was .767. The value of Cronbach' Alpha of knowledge(factor 1) was .885, attitude(factor2)was .756, and skill (factor 3) was .610. The three factors accounted for $65.110\%$ of the variance in the total scale. Addressing the explanatory variance of each domain Cognitive domain was $22.477\%$, affective domain was $20.543\%$, and psychomotor domain was $17.090\%$. Conclusion: Further studies need to be done to verify educational evaluation and apply our outcomes to oriental nursing education.

Measuring Service Convenience for Korean Retail Stores: Scale Development and Empirical Testing

  • Kim, Mi-Jeong;Park, Chul-Ju
    • Journal of Distribution Science
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    • v.12 no.9
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    • pp.95-99
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    • 2014
  • Purpose - This study aims to develop and empirically test a multi-dimensional service convenience scale with the dimensions and measurement items of service convenience perceived by Korean consumers in retail contexts. Research design, data, and methodology - The study adopts the framework suggested by Berry et al. (2002) and conceptualizes service convenience as a second-order reflective construct comprising 31 items. Three department store chains (Hyundai, Lotte, and Shinsegae) and three discount store chains (E-mart, Homeplus, and Lotte Mart) were involved 510 valid responses were used for the empirical testing. Results - The measurement model is acceptable for internal consistency, convergent validity, and discriminant validity. Further, the structural model results show that service convenience is positively related to satisfaction. Results of the rival model comparison indicate that the proposed second-order factor model provides a better fit to the data than both the five-factor and the one-factor model. Conclusions - The multi-dimensional, second-order conceptualization of service convenience is robustly supported. This study provides psychometrically valid scales to measure service convenience in retail contexts as conceptualized by Berry et al. (2002).

Stability Analysis of Embankment Slopes Consisting of Rock Fragments (암석 버력으로 성토한 사면의 안정성 해석)

  • 김치환
    • Tunnel and Underground Space
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    • v.12 no.2
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    • pp.83-91
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    • 2002
  • Stability analysis of rocky embankment slopes is done by both the limit equilibrium method and the finite difference method. The height or the rocky embankment is approximately 40 m and the side slope is 1 vertical to 1.5 horizontal. The cohesion and internal friction angle of rock debris are assumed zero and 43$^{\circ}$, respectively. For finite difference analysis, strength reduction method is used to calculate the saft factor of the slope. As a result, the safety factor of the slope is discovered to be 1.4 by using either methods. Considering that the design criteria of the safety factor is 1.3, it can be judged that the rock fragments embankment slope is in a stable state.

Exploring the Contextual Elements of Book Use to Improve Book Recommender Systems (도서추천 시스템 개선을 위한 도서이용 맥락 요소 탐색)

  • Shim, Jiyoung
    • Journal of the Korean Society for information Management
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    • v.39 no.2
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    • pp.299-324
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    • 2022
  • In this study, in order to explore the contextual elements of book use that were overlooked in the existing book recommender system research, for 15 avid readers with various book search backgrounds, the contents generated in 6 book search situations were collected through the think-aloud protocol. By using content analysis from the collected book use contents, not only the internal and external appeal factors affecting book use, based on the 'appeal factor', the theoretical concept of the readers' advisory service, but also information sources and search methods regarding book use were identified and categorized. The results of this study can be used to extract and reflect meaningful attribute data in the future book recommender system design process.

A Study on Optimization of 3D Auxetic Pyramid Structure (3D Auxetic Pyramid 구조의 최적화 연구)

  • Kim, Gyu-Young;Kim, Soo-ho;Yun, Gi-Won
    • Proceeding of EDISON Challenge
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    • 2017.03a
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    • pp.241-250
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    • 2017
  • Auxetic is a structure that behave as negative Poisson's ratio. It is known for high mechanical property like energy absorption and destruction toughness so far. In this paper, we aimed to design auxetic structure which has small internal energy when force is applied and high NPR and over 50N/mm stiffness by using optimization method. We defined length(L), thickness(t), angle(${\theta}_1$, ${\theta}_2$) as design factors and also von-Mises stress, NPR, stiffness as reaction factors. We used Box-Behnken method and conducted 4factors - 3levels experiment design. We also analyzed each models by using CSD_EPLAST, Edison program, and did extra analysis for more accurate results. Finally, we found out the optimal design factors which is satisfied aimed value and increased reliability through factor analysis and validity verification.

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Optimum Design Methodology of the Damped Oscillatory Impulse Current Generator Considering a Nonlinear Load (비선형 부하를 고려한 감쇠 진동형 임펄스 전류발생기의 설계 기법)

  • Chang, Sug-Hun;Lee, Jae-Bok;Shenderey, S.V.;Myung, Sung-Ho;Cho, Yuen-Gue
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.12
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    • pp.2255-2262
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    • 2008
  • This paper presents a design parameter calculation methodology and its realization to construction for the damped oscillatory impulse current generator(ICG) modelled as damping factor $\alpha$. Matlab internal functions, "fzero" and "polyfit" are applied to find a which are solutions of second order nonlinear equation related with three wave parameters $T_{1},T_{2}$ and $I_{os}$. The calculation results for standard impulse current waveforms such as 4/10${\mu}s$, 8/20${\mu}s$ and 30/80${\mu}s$ show very good accuracy and this results make it possible to extend to generalization in the design of damped oscillatory lCG with any capacitor. 8/20${\mu}s$ ICG based on the calculated design circuit parameters is fabricated in consideration of the nonlinear load(MOV) variation. Comparisons of the tested waveforms with the designed estimation show error within 10% for the waveform tolerance recommended in IEC 60060-1 and IEEE std. C62.45.