• Title/Summary/Keyword: fitting

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A Study on the Change of Opticion's perception and Actual conditions on Eyewear Dispensing (안경조정에 대한 안경사의 인식 및 실태 변화에 관한 연구)

  • Park, Jeong-Sik;Lee, Jeong-Yeong;Jang, Woo-Yeong
    • Journal of the Korea society of information convergence
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    • v.7 no.1
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    • pp.47-53
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    • 2014
  • This study was carried out recognition and status changes of optician for glasses fitting. It based on a survey results of twice in relation to the glasses fitting. The results are as follows. The ratio of glasses fitting about optician operation appeared to increase gradually. The positive awareness change appeared from the customer and optician about the cost charging about the glasses fitting. In the case of a plastic glasses, the burden for the inconvenience feeling and fitting frequency showed an increase with relation to the temple fitting. To reduce the burden of glasses fitting, The continuous education for the correct glasses usage need.

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Performance of covariance matrix fitting-based direction-of-arrival estimation algorithm using compressed sensing in the frequency domain (주파수 영역에서 공분산 행렬 fitting 기반 압축센싱 도래각 추정 알고리즘의 성능)

  • Zhang, Xueyang;Paik, Ji Woong;Hong, Wooyoung;Ahn, Jae-Kyun;Kim, Seongil;Lee, Joon-Ho
    • The Journal of the Acoustical Society of Korea
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    • v.36 no.6
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    • pp.394-400
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    • 2017
  • This paper shows the extension of SpSF (Sparse Spectrum Fitting) algorithm, which is one of covariance matrix fitting-based DOA (Direction-of-Arrival) estimation algorithms, from the time domain to the frequency domain, and presents that SpSF can be implemented in the frequency domain. The superiority of the SpSF algorithm has been demonstrated by comparing DOA estimation performance with the performance of Conventional DOA estimation algorithm in the frequency domain for sinusoidal incident signals.

A Study about Fitting of Children's Ready-to-Wear Clothing (학령기 아동의 기성복 치수 적합성에 관한 연구)

  • Yi, Gyoung-Nam;Hahm, Ock-Sang
    • Fashion & Textile Research Journal
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    • v.2 no.2
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    • pp.138-145
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    • 2000
  • The problem of fitting of children's clothing was researched through survey papers. The survey subjects were the mothers of elementary school students (grade 1 6) and the appropriateness of size, satisfaction with size, and fittings were asked. The survey area was divided into urban and rural areas. The following is the result: The children's clothing was mostly purchased in stores that carry lower-middle price range. The elements considered upon purchase were in the order of price, size, color and patterns. The frequency of purchase is 2 outfits a year, and the highest rate purchase was shown during the change of seasons. The size was picked through trying on the garment. The preferred indication of size was the one marked according to body size. The most popular size upon purchase was one size bigger than the proper fitting size. Mothers want their children to be able to wear one outfit for two years and actually children were able to wear them for two years. The highest degree of satisfaction upon proper fitting was bust girth and shoulder breath. The most frequent reason for a new purchase is the length. The most frequent dissatisfaction is the way buttons are sowed on.

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Evaluation of peak-fitting software for magnesium quantification through k0-instrumental neutron activation analysis

  • Dasari, Kishore B.;Cho, Hana;Jacimovic, Radojko;Park, Byung-Gun;Sun, Gwang-Min
    • Nuclear Engineering and Technology
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    • v.54 no.2
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    • pp.462-468
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    • 2022
  • The selection and effective utilization of peak-fitting software for conventional gamma-ray spectrum analysis is significant for accurate determination of the mass fraction of elements, particularly in complex peak regions. Majority of the peak-fitting programs can derive similar peak characteristics for singlet peaks, but very few programs can deconvolute multi-peaks in a complex region. The deconvolution of multi-peaks requires special peak-fitting functions, such as left and right-skew distributions. In the this study, 843.76 keV (27Mg) peak area from the complex region (840 keV-850 keV) determined and compared using four different peak-fitting programs, namely, GammaVision, Genie2000, HyperLab, and HyperGam. The 843.76 keV peak interfered with 841.63 keV (152mEu) and 846.81 keV (56Mn). The total Mg concentration was determined through k0-instrumental neutron activation analysis by applying the isotopic interference correction factor 27Al(n,p)27Mg through the simultaneous determination of Al concentration. HyperLab and HyperGam peak-fitting programs reported consistent peak areas, and resultant concentrations agreed with the certified values of matrix-certified reference materials.

Strain Response of Motor Axis as Variation of Shrink Fitting (열박음 조건에 따른 전동기 회전축의 변형특성)

  • 우병철;정연호;강도현
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.53 no.9
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    • pp.532-537
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    • 2004
  • Shrink fitting is often a conventional mechanical fasteners and fastening methods with temperature difference. Localized heating of the material surface provides temporary expansion and allows slip fit assembly. The resulting interference fit exhibits exceptional strength without surface deformation at ambient temperatures. We studied an analysing method to find out a deformation of motor axis as variation of constrained method with shrink fitting.

A Study on the Performance Improvement of Pull-off Fitting for Catenary (전차선로용 곡선당김금구의 성능향상에 관한 연구)

  • Kim, Chan-Young;Lyu, Geun-Bae;Chong, Yong-Chul
    • Proceedings of the KIEE Conference
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    • 2001.07c
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    • pp.1417-1420
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    • 2001
  • This paper presents the results of materials and mechanical analyses and performance improvement of pull-off fitting used for catenary. The pull-off fitting is supporting the trolley wire which supplies the electricity. However, the pull-off fitting is repeatedly suffered by the mechanical stresses which produce cracks in the swivel clip, resulting in interruption of an electric car. The characteristic analyses of the swivel clip were performed and the improved swivel clip was suggested.

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Application of GLIM to the Binary Categorical Data

  • Sok, Yong-U
    • Journal of the military operations research society of Korea
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    • v.25 no.2
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    • pp.158-169
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    • 1999
  • This paper is concerned with the application of generalized linear interactive modelling(GLIM) to the binary categorical data. To analyze the categorical data given by a contingency table, finding a good-fitting loglinear model is commonly adopted. In the case of a contingency table with a response variable, we can fit a logit model to find a good-fitting loglinear model. For a given $2^4$ contingency table with a binary response variable, we show the process of fitting a loglinear model by fitting a logit model using GLIM and SAS and then we estimate parameters to interpret the nature of associations implied by the model.

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Study on input data for developing virtual fitting model at internet apparel shopping sites and comparison of the results (인터넷 의류 판매 사이트의 가상피팅모델 구축을 위한 입력정보 종류와 결과 비교)

  • 천종숙;최현영
    • Science of Emotion and Sensibility
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    • v.5 no.4
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    • pp.1-10
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    • 2002
  • A web based virtual try-on provides customers a more enjoyable shopping experience that visualize clothes on personal mannequin. The researchers compared virtual fitting models which were developed in 2000 at Korea and in 2000 and 2002 at U.S. The results of this study as follows: The information about user's body size was required to input for selection of a virtual fitting model. 7 to 19 different body size, shape, and face features including weight and height were needed for visualizing virtual fitting model. The body type of the U.S virtual fitting model(My virtual model) was selected by front view silhouette for women, and by shoulder width and midriff silhouette for men. The more detailed information was required for developing Korean virtual fitting model. The additional body size information required in the site were leg and arm lengths, waist length, and thigh and ankle circumferences. The body proportion of Korean cyber personal mannequin was longer and narrower than the U.S cyber personal mannequin. It was recommended that standardized body length, width, and depth proportions calculated from national anthropometric data must be applied for developing Korean virtual fitting model. With application of more detailed information on face feature and advanced graphic image technology the 'My virtual model in 2002 resembled the human body shape of various race.

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Finite Element Analysis of Shrink Fitting Tolerance and Force of Tile Mold Liner and Fitting Material (타일 금형 라이너 및 끼움재의 열박음 공차 및 결합력에 대한 해석적 연구)

  • Lim, Dong Wook;Lee, Jeong Sik;Jeong, Young Ho;Choi, Doo Sun;Ko, Kang-Ho;Lee, Jeong-woo;Kim, Ji-Hun
    • Design & Manufacturing
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    • v.14 no.3
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    • pp.50-56
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    • 2020
  • Ceramic tile is widely used as a floor or interior decoration of buildings. The main processes are raw material blending, molding, drying, firing, etc., and since dimensional and quality stability are very important, they are generally molded by a dry press method. In ceramic tile molds, there is a liner that can be easily replaced in case of wear. The liner is constantly abrasion due to a continuous pressing process during tile forming, and it is required to be replaced every certain period. Even in the liner, use a wear-resistant fitting material only in areas where wear is concentrated. However, there was a risk that the fitting material was applied to large-sized tile molding due to problems such as damage to the molding machine and decrease in productivity when detached during the actual tile molding process due to weak fitting strength with the liner. Therefore, in this study, thermal-structural analysis for fitting tolerance analysis and structural analysis for fitting force analysis were performed for the shrink fit process of the fitting material.