• Title/Summary/Keyword: expected dimensions

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Men′s Bodice Pattern Making Method using 3-D Body Scan Data (3차원 인체 스캔 데이터를 활용한 남성용 바디스 원형 설계 방법 연구)

  • 서동애;천종숙
    • The Research Journal of the Costume Culture
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    • v.12 no.2
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    • pp.290-299
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    • 2004
  • The purpose of this study is to testify the pattern making method to develop the men's basic bodice pattern using 3-dimensional body scan data. The experimental patterns were made by adding wearing ease on flattened body scan data and tracing the outlines of it. The experimental bodice pattern were composed of front, back, and side panels. To compare the difference between the experimental pattern and traditional pattern, two pattern making methods were compared. Two sets of basic bodice patterns were made for each of the 10 male subjects: a set of pattern was made by experimental method and the other set was made by Bunka pattern making method. The experimental and traditional patterns were measured at 13 dimensions. The results show that there was a difference between the experimental patterns and traditional patterns at the front length, back length, front width, front neck width, back neck width, and back neck depth. The fit was also compared for both patterns. The results of the fit test show that the experimental patterns were superior to the traditional patterns at the fit of neck, shoulder, and armhole. The experimental pattern making method was expected to be useful for mass customization.

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Prototype Electromagnetic-Noise Filters Incorporated with Nano-Granular Co41Fe38Al13O8 Soft Ferromagnetic Thin Films on Coplanar Transmission Lines

  • Sohn, Jae-Cheon;Byun, Dong-Jin
    • Journal of the Korean Ceramic Society
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    • v.43 no.2 s.285
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    • pp.74-78
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    • 2006
  • A non-integrated type noise filter on a Coplanar Waveguide (CPW) transmission line is demonstrated by using a highly resistive $Co_{41}Fe_{38}Al_{13}O_8$ nanogranular thin film with the dimensions of $4\;mm (\iota)\times4\;mm(\omega)\times0.1\;{\mu}m(t)$. The noise suppression characteristics are evaluated without placing an insulating layer between the CPW line and the magnetic thin film. The insertion loss is very low being less than 0.3 dB and this low value is maintained up to 2 GHz. At a ferromagnetic resonance frequency of 3.3 GHz, the power loss is very large and the degree of noise attenuation is measured to be 3 dB. This level of noise attenuation is still small for real applications; however, considering the small magnetic volume used in this work, further improvement is expected by simply increasing the magnetic volume and by integrating the magnetic thin film into the CPW transmission line.

CSR Expectation from Fashion Firms and its Impact on Brand Equity (패션기업에 대한 CSR기대와 브랜드 자산에 미치는 영향)

  • Ahn, Soo-Kyoung;Ryou, Eunjeong
    • Fashion & Textile Research Journal
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    • v.15 no.1
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    • pp.73-83
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    • 2013
  • This study explores the ideal corporate social responsibility(CSR) that fashion consumers expect from a fashion firm in the identification of dimensions and levels of consumer expectations as well as examines the impact of CSR expectations on customer-base brand equity. The data of 315 adults were collected through a nationwide online survey. In order to analyze the data, this study employed Confirmatory factor analysis (CFA), paired t-test, structural equation modeling(SEM), and descriptive analysis. This study first identified seven fashion CSR expectations (environmental, ethical, social, internal management, philanthropic, economic, and legal expectations). Internal management and environmental activities were highly expected from fashion firms; however, economic activity was low in expectations. Five models separately tested the relationship between CSR expectations and brand equity (trustworthiness, attachment, performance, social image, and value). Economic, environmental, internal management, social and ethical CSR expectations influenced customer-based brand equity; however, philanthropic and legal expectations did not influence any dimension of customer-based brand equity. This study provides a framework of ideal CSR from a consumer perspective and suggests that fashion marketers should focus on economic, environmental, internal management, social and ethical CSR activities to meet the expect Haitians of fashion consumers and build stronger brand equity.

Mixed Reality System for Virtual Chemistry Lab

  • Duan, Xiaoyun;Kang, Shin-Jin;Choi, Jong In;Kim, Soo Kyun
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.14 no.4
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    • pp.1673-1688
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    • 2020
  • This paper presents a new method for improving teaching aids with the design and development of a chemistry education platform - the Mixed Reality (MR) Chemistry Lab. Our system provides a new educational experience in which students can simulate a chemistry experiment in a virtual lab and interact with objects using Oculus Helmet-Mounted Displays (HMD) and hand controller devices. The proposed system aims to familiarize students with experimental procedures and safety knowledge before conducting actual experiments. Moreover, students will be able to observe microscopic atomic structure models in three dimensions. Our research also includes a five-part, quantitative evaluation system user tests perform using a quantitative questionnaire consisting of five items, including hardware equipment, immersion, education, interaction sense of control, and degree of difficulty. The evaluation results confirm that this system will be helpful to the educational experience of conducting chemistry experiments with scientific evaluation methods, and the proposed system is also expected to have a broad range of applications in many other subjects.

A Driver Space Design of Passenger Vehicle using Forward Kinematics Model (Forward Kinematics 모델을 이용한 자동차 운전공간의 설계)

  • Jeong, Seong-Jae;Park, Min-Yong
    • Journal of the Ergonomics Society of Korea
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    • v.21 no.2
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    • pp.47-58
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    • 2002
  • This research suggested the mathematical model (forward kinematics method) to provide the reference points of driver space more easily and accurately in designing the package layout of vehicle interiors. For this purpose, the lengths of body segments of drivers and various joint angles occurred while were used. The length data between joints for the mathematical model were extracted from $SAFEWORK^{\circed{R}}$ as well as 95th percentile male and 5th percentile female body dimensions were utilized. In addition, the angles of body segments were applied on its diverse values within proper ranges in order to compare them each other. the mathematical model in this study was based on the concept of converting polar coordinate system to Cartesian coordinate system so that reference points of driver space were acquired in Cartesian coordinate system after using the segment lengths of drivers and the joint angles of driving postures as an input of polar coordinate system. It is expected that reference points of driver space obtained from this research are helpful to the study on package layout that is appropriate for physical characteristics of drivers.

An Approximation Method in Bayesian Prediction of Nuclear Power Plant Accidents (원자력 발전소 사고의 근사적인 베이지안 예측기법)

  • Yang, Hee-Joong
    • Journal of Korean Institute of Industrial Engineers
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    • v.16 no.2
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    • pp.135-147
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    • 1990
  • A nuclear power plant can be viewed as a large complex man-machine system where high system reliability is obtained by ensuring that sub-systems are designed to operate at a very high level of performance. The chance of severe accident involving at least partial core-melt is very low but once it happens the consequence is very catastrophic. The prediction of risk in low probability, high-risk incidents must be examined in the contest of general engineering knowledge and operational experience. Engineering knowledge forms part of the prior information that must be quantified and then updated by statistical evidence gathered from operational experience. Recently, Bayesian procedures have been used to estimate rate of accident and to predict future risks. The Bayesian procedure has advantages in that it efficiently incorporates experts opinions and, if properly applied, it adaptively updates the model parameters such as the rate or probability of accidents. But at the same time it has the disadvantages of computational complexity. The predictive distribution for the time to next incident can not always be expected to end up with a nice closed form even with conjugate priors. Thus we often encounter a numerical integration problem with high dimensions to obtain a predictive distribution, which is practically unsolvable for a model that involves many parameters. In order to circumvent this difficulty, we propose a method of approximation that essentially breaks down a problem involving many integrations into several repetitive steps so that each step involves only a small number of integrations.

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A study on deformation of LSR injection moldings having the runners with same flow distance (동일 유동거리 런너를 가진 LSR 성형품의 변형에 관한 연구)

  • Park, Jeong-Yeon;Yoon, Gil-Sang;Lee, Jeong-Won;Choi, Jong Myeong
    • Design & Manufacturing
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    • v.7 no.1
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    • pp.60-63
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    • 2013
  • Recently, Silicone that one of the thermo-sets is used to making optical products such as LED lenses because of excellent thermal properties. LED lenses are required to keep the precise dimensions, so they must be molded to have the minimum deformation. Thermo-sets have the expansion characteristic on the part of thermal property, it is important to optimize the cure condition so that the deformation of the part become minimum. In this study, to investigate the relationship between the shrinkage by the curing and expansion by the thermal properties of the resin, reactive injection experiment was performed by setting the variables such as mold setting temperature, cure time. As a result, it was confirmed that there was a interval while the thermal properties were transferred to more active during the cure process. It is expected to help in determining the reactive injection molding conditions of the thermo-set parts as well as LED lens in order to reduce the amount of deformation.

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Bearing capacity of strip footings on a stone masonry trench in clay

  • Mohebkhah, Amin
    • Geomechanics and Engineering
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    • v.13 no.2
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    • pp.255-267
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    • 2017
  • Soft clay strata can suffer significant settlement or stability problems under building loads. Among the methods proposed to strengthen weak soils is the application of a stone masonry trench (SMT) beneath RC strip foundations (as a masonry pad-stone). Although, SMTs are frequently employed in engineering practice; however, the effectiveness of SMTs on the ultimate bearing capacity improvement of a strip footing rested on a weak clay stratum has not been investigated quantitatively, yet. Therefore, the expected increase of bearing capacity of strip footings reinforced with SMTs is of interest and needs to be evaluated. This study presents a two-dimensional numerical model using the discrete element method (DEM) to capture the ultimate load-bearing capacity of a strip footing on a soft clay reinforced with a SMT. The developed DEM model was then used to perform a parametric study to investigate the effects of SMT geometry and properties on the footing bearing capacity with and without the presence of surcharge. The dimensions of the SMTs were varied to determine the optimum trench relative depth. The study showed that inclusion of a SMT of optimum dimension in a soft clay can improve the bearing capacity of a strip footing up to a factor of 3.5.

Application of Dispersion Number for Analysis of Tracer test in Sedimentation Basin (침전지 추적자 실험을 위한 Dispersion Number의 적용)

  • Kim, Young-Il;Park, No-Suk;Jung, Nam-Jung;Kim, Seong-Su;Bae, Byung-Uk
    • Journal of Korean Society of Water and Wastewater
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    • v.21 no.2
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    • pp.187-193
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    • 2007
  • Reynolds and Froude numbers, along with tracer tests, have been widely used to estimate hydrodynamics in full-scale horizontal sedimentation basin in water treatment plants (WTPs). In spite of this, the former numbers do not reflect actual operating conditions, instead most often being based on the dimensions of the structures. The index and graphic analyses most often used were found to be too subjective to accurately analyze tracer test results. In order to overcome these limitations, dispersion number was applied for analysis of tracer test results. Tracer tests were conducted in eight full-scale sedimentation basins in six WTPs, and then analyzed by index and graphic analyses as well as by dispersion number. The dispersion number was more useful as an indicator of the hydrodynamic behavior in the basin. It was also found that as dispersion number decreased, flow approached the ideal for plug flow in which case, higher sedimentation efficiency could be expected.

A Study on Re-Participation and Recommendation by Evaluation of Cruise Tour Attributes (크루즈(Cruise)참가속성 만족도에 따른 재 참가 및 참가추천의사에 관한 연구)

  • Kim, Do-Yeong;Kim, Maeng-Seon
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.17 no.1
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    • pp.69-84
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    • 2006
  • Recently, Cruise travel Industry becomes a major market in the SIT tour. this perspective, the primary purpose of this study was to investigate relationship between influencing factors of the Selection Attributes of Cruise Tour. This research aims to provide information to establish customer-oriented marketing strategies in developing by cruise tour. The current study examined related literature finding out the number of the factors to meet future users preference and expectations. Based on examined factors, the study investigated the same dimensions in Korea future cruise industry. The data collected outgoing tourists of travel service company. The Survey instrument consisted of asking respondents a number of questions regarding their intention, preferences, and expectations toward future cruise travel. The result of study showed that a certain number of factors were statistically significant on the future users cruise travel intention. It shows that there was significant difference related to the using purpose and the usage attitude. It can be conducted from the results that respondents expected a certain number of factors when the cruise travel launched in korea.

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