• Title/Summary/Keyword: grading system

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Measurement of Physical Properties of Korean Garlic for Grade Standard

  • Hong, J.H.;Koh, H.K.
    • Agricultural and Biosystems Engineering
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    • v.3 no.1
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    • pp.1-9
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    • 2002
  • Garlic is one of the major seasoning vegetables in Korea and consumed mostly in a form of peeled cloves. Conventional Korean standards for garlic grading consist of four classes according to the size of bulb and its shape. Sorting and grading of garlic are manually done but could be in the process of automated mechanization using machine vision system in the near future. The proportion of mass of cloves in a garlic bulb to the volume of the bulb (g/ml) was determined to find out the best way of representing both the quantity and quality of cloves in each bulb. Garlic bulb was assumed as an ellipsoid and its major and minor axis and its height were measured to calculate its volume. The mass proportions and density of a garlic bulb and cloves were measured for four domestic varieties of garlic to propose it as a standard for Korean garlic grading machine.

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Improved special grading of 2D ShoeCAD System (2D ShoeCAD 시스템에서의 향상된 특수 그레이딩)

  • 김희준;이건호;김영봉
    • Proceedings of the Korea Multimedia Society Conference
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    • 2003.11b
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    • pp.601-604
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    • 2003
  • 신발 설계 시스템에서 그레이딩 기능은 기본 사이즈로 설계된 신발 라스트를 생산하고자 하는 여러 사이즈로 변환하는 작업이다. 그레이딩(Grading) 작업은 전체적으로 적용되는 제로 그레이딩(Zero Grading)과 특정한 부분에 개별적인 룰을 적용하는 센터 그레이딩(Center Grading)으로 구분된다. 이 두 방식을 혼용하여 그레이딩 작업을 수행하는데, 이 때, 휘어짐이나 일그러짐과 같은 부적절한 결과가 발생할 수 있고, 이런 오류를 보정하기 위해 제약조건들(Restrictions)을 적용한다. 이와 같이 센터 그레이딩과 제약조건들을 적용한 그레이딩을 특수 그레이딩이라 한다. 기존의 신발 설계 시스템에서는 이런 특수 그레이딩에 대해 속도가 느리거나, 기능이 미비하거나 지원하지 않는 문제점이 있다 본 논문에서는 이런 문제점들을 해결하고, 특수 그레이딩을 위한 제약조건을 다중으로 적용할 수 있도록 보완하였다.

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The Comparative Study of Packing House System for Apple Industry between Kyungpook Province and New York State (경북지역과 미국 뉴욕주 패킹하우스의 운영 실태 비교분석)

  • Lee, Ho-Chol
    • Journal of Korean Society of Rural Planning
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    • v.5 no.2 s.10
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    • pp.1-13
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    • 1999
  • Packing house is the regional center in which packing, sorting, storage, and selling of harvested fruits are taken care of all together. It is located at the producing centers, and commercializes their apples. Apple grading policies of chief producing centers should concentrate on enhancing functions and roles of its local packing house. Consequently new packing house policies for enacting individual grading standards at national and local levels should be developed. This study is to develop Korea packing house on the basis of field survey in New York State. Increasing the utilization of packing house is the main key to the success of apple grading project. Therefore, effective arrangement and utilization of sorting facilities should be evaluated and new system which enables apple farms, local cooperatives, and corporations to joint-utilize packing house must to be established.

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A Study on Classification and Differential Grade Management for Medical Devices (의료기기 품목 재분류 및 차등 관리방안 연구)

  • Lim, Kyeongmin;Song, Tongjin
    • Journal of Biomedical Engineering Research
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    • v.39 no.6
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    • pp.268-277
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    • 2018
  • With drastic change in the market and technology of medical devices, a comparative analysis is necessary in advanced systems internationally in order to prepare domestically applicable plans for improvement in classification and differential grade management for items of medical devices. This research examines and analyzes the differences of definition and legal systems of medical devices among Korea, United States, EU, Japan and China, and investigates classification and grading system of each country to identify disadvantages of classification and grading structures for medical device in Korea. This research suggests ways to supplement the disadvantages of domestic classification and grading system of medical devices, and elicits differential management plans for medical devices.

Necessity for Performance Grade for Residential Structure Waterproofing based on Application Areas - Using AHP Methodology - (공동주택 방수 시공 부위에 따른 성능등급의 필요성 확인 - AHP 분석을 중심으로 -)

  • An, Ki-Won;Oh, Kyu-Hwan;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.05a
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    • pp.21-22
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    • 2021
  • Domestic residential buidling grading is currently comprised of 5 fields; sound-proofing, structure, ambient condition, living environment and fire-proofing. However, factors the take up most of the civil complaints are related to leakage, and waterproofing is not listed as part of the grading system. In particular, the Ministry of Land and Transport claims that the most crucial problems are leakage related in residential structures. Therefore, this study proposes to provide such grading system for waterproofing by AHP methodology based on waterproofing application locations in residential structures.

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A Study on the Korean Women s Wear Grading by Different Age Groups II (국내 여성복 브랜드 그레이딩의 연령별 비교에 관한 연구 II)

  • 최윤선;김소라;송미령
    • The Research Journal of the Costume Culture
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    • v.10 no.5
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    • pp.518-531
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    • 2002
  • The purpose of this study was to research specific dimensional increments of grading and to support to establish a grading system according to the targets of women's wear manufacturers in Korea. For the questionnaire, 91 women's wear brands, which were in higher ranking of sales, were selected, and the age groups were separated into 3: 20's, 30's, and 40's & 50's, according to their customers. The graders of each brand were questioned about specific dimensional increments of grading fur this research. The results of the study were as follows: 1. Using the most common dimensional increments, 3.81cm(1 f inch) and 5.08cm(2 inch) for upper garments and lower garments, the modes of increments and reference increments for each garment section were suggested. 2. For upper garments, the brands for older women made larger increments of waist girth than for bust girth. This was to cover abdominal obesity. Also, the brands made larger increments of girth than for shoulder breadth. 3. For lower garments, the brands for older women made larger increments of waist girth than fur hip girth. It meant the drop value of hip girth minus waist girth was smaller. The breadths of front and back crotch were also wider.

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Classification of Body Types for Pattern Grading of Ready-to-Wear -focusing on Korean Males aged from 44 to 54- (신사복의 패턴 그레이딩을 위한 체형 분류 -44세에서 54세사이의 한국 성인 남성을 대상으로-)

  • 김구자;정명숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.25 no.6
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    • pp.1069-1078
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    • 2001
  • Pattern grading is a technique used to increase or decrease the size of a garment pattern according to the measurements in a given size chart. The original pattern is graded and laid out for cutting before mass production. This study tried to classify body types for pattern grading of jacket by applying a concept of "drop"defined as the difference between chest girth and waist girth and the difference between hip girth and waist girth for pants. Data were collected through the stratified sampling method. 138 subjects were selected out of 1,290 subjects of our sample population. Findings were as follows : 1) For pattern grading of jacket, the cell with the chest girth of 96cm and the waist girth of 87cm had the highest frequency rate and body type was 87H type and the coverage of this type was 9.52%. Then, the size specification 87-96 was the center of distribution. H type had seven ones such as 72H, 75H, 78H, 81H, 84H. 87H and 90H. H type had 33 observations and frequency ratio of 26.19%. Same types could be graded up and down from the reference size for the age group. And this reference size became to the starting point for developing the grading system. 2) For pattern grading of pants, fatty types, H10 type had six ones such as 80H10. 82H10, 84H10, 86H10, 88H10 and 90H10. H10 type had 28 observations and frequency ratio of 20.29%. H6 type had 6 ones such as 84H6, 86H6, 88H6, 90H6. 92H6 and 94H6. H6 type had 27 observations and frequency ratio of 19.57%. If lower body types were classified as same ones, these types could be graded up and down proportionately.

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A Study on the Application of the Apparel CAD System(II) (어패럴 CAD System의 활용화 방안 연구(II) - 테일러드 쟈켓 설계 과정을 중심으로 -)

  • Nam, Yun-Ja;Lee, Hyoung-sook;Jo, Yeong-A
    • Journal of the Korean Society of Clothing and Textiles
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    • v.18 no.1
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    • pp.43-56
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    • 1994
  • The Purpose of this study was to utilize of CAD System in pattern making process for women's apparel. The automation by the use of CAD System provides the higher accuracy and efficiency in pattern making process. AccuMark 300 System was used. for .this study. The results from this study were as follows . 1. New size spec chart and grading pitch chart were developed based on the data analysis and fitting tests for female college students. 2. New jacket block was developed based on the torso length sloper 3. Automatic grading of jacket block have been developed by creation and modification of grading rules of block pattern. 4. Pattern Design Systyem(P/D/S) were enabled to be constructed directly form a block pattern by modifications to existing styled pattern. 5. Original master pattern was generated by P/D/S menu option. 6. Production pattem added seam allowance, notchs was generated by P/D/S menu option. 7 Interative maker making process have enabled to save a wide range of time and space. 8. Measurement of garment by P/D/S measuring tools is to utilize in garment costing, quality control.

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Grade Classification of Urushi Lacquer (I) Grade Classification of Urushi Lacquer by Traditional Method (옻칠의 품등 구분 (I) 전통적인 방법에 의한 옻칠의 품등구분)

  • Roh, Jeong-Kwan;Kim, Yun-Geun
    • Journal of the Korean Wood Science and Technology
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    • v.36 no.6
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    • pp.105-112
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    • 2008
  • Grading of the urushi lacquer is quite difficult because of large variations depending on origin, growing conditions, time acquisition, storage conditions. It is urgently required to establish a grading system of urushi lacquer by combining traditional method with scientific methods. Traditional grading of urushi lacquer was done by visual inspection of 10 experts who are working on urushi lacquer industry. Common aspects of the experts were color, odor, viscosity, spread properties on Hanji, color and drying properties on glass based the traditional grading system. In addition, rubbing on Hannj and heating with alcohol lamp was also used to grade urushi lacquer. The grading results of 10 experts showed that chinese urushi lacquer (E) of 7.03, japanese urushi lacquer (C) of 6.84, domestic urushi lacquer of (A) of 6.41 and another chinese urushi lacquer (D) of 5.27, and domestic urushi lacquer (B) of 2.50 in descending order. The degree of spread on Hanji was not consistent among 10 experts. These results indicated that the traditional grading system was pretty much personal and required of developing more objective method based on scientific background.

A study on log diameter classes of Korean softwood log (국산 침엽수 원목의 경급구분 기준에 관한 연구)

  • Park, Jung-Hwan;Kim, Kwang-Mo;Eom, Chang-Deuk;Jung, Doo-Jin
    • Journal of the Korean Wood Science and Technology
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    • v.41 no.4
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    • pp.337-345
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    • 2013
  • Log grading rules are essential tools to ensure the quality of logs in distribution structure. The rules should reflect the long experience and accepted usage practice in the market. A gap between the rules and market should be improved based on analysis of log qualities that produced and market demand. In this study more than ten millions logs which were produced by 5 Regional Forest Services in 2010~2011 period, were analyzed in their qualities including diameters and lengths by species. A proposal was driven to improve the current log grading rules in terms of log diameter classes and length. The followings are the summary of this study. Most of domestic softwood logs are belong to small diameter class of 100~160 mm, which imply the diameter classes of current log grading rules are immoderate. Distributions of log diameter shows distinctive patterns by species, which indicate a necessity of differentiated diameter classes by species in an improved rules. Lengths of logs in productions do not corresponding to the demands and preferences in sawmills. Therefore it is highly recommended to include log length term in an improved log grading system. Based on these findings, 6 log grading systems for 3 species groups of softwood are newly proposed to improve current log grading rules. Limits of log diameter and log length are also proposed for each log grading system.