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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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The Actual Wearing Conditions and Preferences for Domestic Men's Slim-fit Dress Shirts (국내 슬림 핏 드레스 셔츠의 착의실태 및 선호도 조사)

  • Kim, Dong-Hyun;Jang, Jeong-Ah
    • Fashion & Textile Research Journal
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    • v.14 no.6
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    • pp.983-991
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    • 2012
  • The purpose of this study was to provide basic reference data for the development of slim-fit dress shirts patterns for a variety of body somatotypes. For this study, a survey was conducted on the actual product conditions of slim-fit dress shirts of domestic brands(Actual wearing and purchasing conditions, fit, design preferences). The survey was conducted on 135 men in their 20s~30s. PASW Statistics 18 was used for data analysis. The result of this study are as follows : Analysis of the actual wearing conditions of dress shirts indicates that consumers own an average of 1~2 classic-fit shirts and 1~4 slim-fit shirts. These are normally worn once or twice a week, and purchased mainly at department stores, agencies, direct sales markets or outlets. With respect to the purchasing factors, price and style were the main priorities. Surveyed consumers had the greatest preference for designs with a non-darted front and a darted back, a semi-wide collar and the color white. By classifying the surveyed by somatotype, Type B preferred designs darted on both front and back, Type A preferred designs with a non-darted front and a darted back, while Type Y preferred designs non-darted on both front and back. All somatotypes displayed a preference for semi-wide collars and the color white.

Design Improvement of Front-End Loader for Tractor to Reduce Stress Concentration and Evaluation of Impact Safety (응력집중 저감을 위한 트랙터용 프론트 로더의 설계개선 및 충격 안전성 평가)

  • Lee, Boo-Youn
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.17 no.3
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    • pp.109-119
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    • 2018
  • The purpose of this study is to evaluate the structural safety of the front-end loader for the 90 kW class of agricultural tractors in impact test conditions. Deformation and stress on the loader under the impact test conditions are analyzed using the commercial finite element analysis software ANSYS. In previous research dealing with the initial design of the loader, the maximum stress occurred in the mount and exceeded the yield strength of the material. In this paper, an improved design of the mount of the loader was proposed to reduce the stress concentration in the initial design. The safety of the improved design was verified by performing rigid-body dynamics analysis, transient structural analysis, and static structural analysis under three impact test conditions: a drop and catch test, a corner pull test, a corner push test. It was found that the local stress concentration in the mount that appeared in the initial design was greatly reduced in the improved design, and that the maximum stresses occurred in the three impact test conditions are smaller than the yield strength. It is expected that the design improvement of the mount proposed in this study and the method of analysis may be effectively used to enhance structural safety in the development of new model front loaders in the future.

Circulation in the Central South Sea of Korea in Spring 1999

  • Lee, Jae-Chul;Lee, Sang-Ho;Kim, Dae-Hyun;Son, Yong-Tae;Perkins, Henry-T.;Kim, Jeong-Chang;Pang, Ig-Chan
    • Journal of the korean society of oceanography
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    • v.38 no.3
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    • pp.143-155
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    • 2003
  • Current and sea level were observed in spring 1999 by a bottom mounted ADCP and tide gauge in the central part of the South Sea of Korea. With respect to the front, the distribution of isotherms is prograde in the offshore region whereas that of isohalines is retrograde, especially in the coastal area. The combined effect results in shoaling of isopycnals at the front. This distribution corresponds to a westward coastal flow on the northern side of the front and the eastward Tsushima Warm Current (TWC) to the south, determined by vessel-mounted ADCP observations. The low-frequency current shows either alternating clockwise-counterclockwise rotation or else persistent eastward motion depending on the frontal motion. Fluctuations of wind, sea level and current are coherent at period of 3-4 days and show some characteristics of Ekman-like dynamics.

Development of Ultrasound Sector B-Scanner(I)-Front End Hardware Part- (초음파 섹터 B-스캐너의 개발(I)-프론트 엔드 부분-)

  • 권성재;박종철
    • Journal of Biomedical Engineering Research
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    • v.7 no.1
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    • pp.59-66
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    • 1986
  • A prototype ultrasound sector B-scanner has been developed where the front-end hardware refers to all the necessary circuits for transmitting the ultrasound pulses into the human body and receiving the reflected echo signals from it. The front-end hardware can generally be divided into three parts, i.e., a pulse generator for insonification, a receiver which is responsible for processing of low-level analog signals, and a steering controller for driving the mechanical sector probe whose functions and design concepts are described in this paper. The front-end hardware is implemented which incorporates the following features: improvement of the axial resolution using a circuit which reduces the ring-down time, flexibility of generating time-gain compensation curve, and adoption of a one-chip microcomputer for generating the rate pulses based on the sensor output waveforms.

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The objectification study of excessiveness and deficiency diagnosis by measuring the elastic modulus state of Front Points (복모혈(腹募穴)의 탄력상태 측정에 의한 허실(虛實) 진단(診斷)의 객관화 연구)

  • Yun Y.C.;Jang K.S.;Na C.S.;So C.H.
    • Journal of Acupuncture Research
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    • v.15 no.2
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    • pp.81-96
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    • 1998
  • This study was done to find out the correlation between manual palpitation and mechanical measurement and the possibility to produce the data using chest and abdominal Front Point(募穴). Followings are the results from the present study. 1. The maximal pressure felt by the patient was 10kgf/$cm^2$. 2. The maximal deformation felt by the patient was in the range of 6cm. 3. The modulus (index obtained by the division of maximal pressure and maximal deformation) was highly correlated with manual palpitation. 4. It was useful to classify two front points in the abdomen and chest when modulus is concerned. 5. When the index of elastic modulus are big and small enough, it is said excessiveness and deficiency(虛實), respectively. Overall, this study was able to find the possibility to quantify the traditional state of excessiveness and deficiency in the form of objected data.

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Tribological Failure Study of Manual Transmissions in Front Engine and Front Wheel Drive Vehicle (전륜구동 수동변속기에 대한 트라이볼로지적 고장사례 연구)

  • Kim, Chung-Kyun;Lee, Il-Kwon
    • Tribology and Lubricants
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    • v.24 no.6
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    • pp.285-290
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    • 2008
  • The purpose of this paper is to present the case study of tribological failure analysis on the gear damages, oil leakage, and sealant sealing in a manual transmission of front engine and front wheel drive vehicle. The manual transmission is to change the speed range and direction of the engines depending on the driving conditions by friction driving forces with input and output gear system. The material property and surface roughness of the gears are strongly related to the gear noise and micro-vibration, oil leakage and wear, which may decrease the real contact area of the gear and the strength of the oil film thickness between the driving gear and driven one. The O-ring damage of speedometer driven gear and bad sealant sealing of oil pan may produce oil leakage through the contact surfaces, which cause the oil shortage and seizure on the sliding surfaces of the transaxle gears. In the failure case study, the proper repair working and good lubrication are very important for the long life of the transaxle without any tribological failures and oil leakage.

Fairing Design Optimization of Missile Hanger for Drag Reduction (유도탄 행거 항력 저감을 위한 페어링 형상 최적화)

  • Jeong, Sora
    • Journal of the Korea Institute of Military Science and Technology
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    • v.22 no.4
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    • pp.527-535
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    • 2019
  • Hanger in a rail-launched missile protrudes in general and causes to increase significant drag force. One method to avoid the significant increase of drag force is to apply fairings on the hanger. In this paper, sloping shaped fairing parameters of height, width, and length are optimized to minimize the drag force under subsonic speed region by examining three configurations of fairings : front-fairing only, rear-faring only, and the both front and rear fairing. We use Latin Hypercube Sampling method to determine the experimental points, and computational fluid dynamics with incompressible RANS solver was applied to acquire the data at sampling points. Then, we construct a meta model by kriging method. We find the best choice among three configurations examined : both front and rear fairing reduce the drag force by 63 % without the constraint of fairing mass, and front fairing reduced the drag force by 52 % with the constraint of hanger mass.

Suggestion for Collaboration-Based UI/UX Development Model through Risk Analysis

  • Cho, Seong-Hwan;Kim, Seung-Hee
    • Journal of Information Processing Systems
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    • v.16 no.6
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    • pp.1372-1390
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    • 2020
  • An attractive user interface (UI) design with a clear user experience (UX) is the key for the success of applications. Therefore software development projects require very close collaboration between SI developers and front-end service developers. However, methodologies for software development only exist with inadequate development processes or work standards for collaboration. This survey derived 13 risk factors in developing UI/UX from 113 risk factors of IT projects through a questionnaire and factor analysis and proposed a collaboration-based UI/UX development model that can eliminate or mitigate six risks with high weights and reliability. To extract risk factors with high reliability, factor and reliability were analyzed to extract 13 major risks, and based on the expert opinions and the results of correlation analysis, UI/UX development stages were classified into planning, design, and implementation. The causal relationships between risks were verified through regression analysis. This study is the first to expertly analyze major risks based on collaboration in UI/UX development and derive a theoretical basis that can be used in project risk management. These findings are expected to provide a basis for research on development methodologies for higher levels of front-end services and to construct rational collaboration systems between SI practitioners and front-end service providers.

Ununited Anconeal Process (UAP) in Dog: A Case Report (견(犬)의 주돌기 융합부전증(融合不全症)의 수술치료예(手術治療例))

  • Cho, Kil Hyon
    • Korean Journal of Veterinary Research
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    • v.20 no.2
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    • pp.123-125
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    • 1980
  • Ununited Anconeal Process (UAP) is defined as a disease of young dogs due to developmental abnormality in which there is a seperation of the anconeal process from the diaphysis of the ulna, leading to a front leg lameness and secondary osteoarthritis. A six -year-old German Shepherd dog was presented because of intermittent right front leg lameness. Diagnosis was made of ununited anconeal process with moderate osteoarthritis by radiographic examination. Surgical removal of ununited anconeal process and curettage of osteoarthritic growth within the elbow joint relieved significant clinical signs despite of size and age of the dog.

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