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검색결과 105건 처리시간 0.03초

SPC관련 KS의 제개폐 및 KS A ISO 2859-3에 대한 고찰 (A Study on SPC-related KS and KS A ISO 2859-3)

  • 임재근;조병선;정수일
    • 산업경영시스템학회지
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    • 제28권2호
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    • pp.75-80
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    • 2005
  • As a result of globalization process and TBT agreement, KS is also being revised, reestablished and some are abolished according to international standards such as ISO, IEC, etc. Conventional KS sampling inspection standards contained many different procedures from ISO, but recently, to match with international standards, all the rest of the standards except KS A 3102, 3104, 3151 were abolished, and the even the ones being in use still are also scheduled and be revised. Especially, KS A 3101, KS A 3105, KS A 3109, which were used most frequently in Korea were abolished, and the KS A ISO $2859-0\~3$ which coincide with ISO standards were established 3 years ago, but the implementation rate is very slow. Starting next year the national examination for qualification process for the product quality related item will the started and the preparation is underway. This study will investigate the recent sampling inspection process of KS as well as SPC related KS overhaul problem and present the data to help workers in SPC related field. One of the main example will be on KS A ISO 2859-3 and will attempt to help those medium and small sized companies with examples.

도시에 거주하는 여자노인의 영양상태와 건강상태에 관한 조사연구 (A Study on the Nutritional Status and Health Condition of Elderly Women Living in Urban Community)

  • 김혜경
    • Journal of Nutrition and Health
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    • 제22권3호
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    • pp.175-184
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    • 1989
  • This survey was carried out to obtain the information concerning nutritional status, including factors of food intake and health condition of elderly women living in Ulsan city. Main results were as follows. 1) Dietary intake data showed the average daily intake of energy, protein, vitamin A, riboflavin and ascorbic acid were lower than Korean recommended dietary allowances (RDA). According to the percentage of RDA, Vitamin A was the nutrient found to be least sufficient. 2) Among the various influencial factors, pocket money, meal-mate, skip meal and health concern influenced on nutrient intake considerably. A meal condition score based on influencial factors, showed significant correlations with all nutrient intake(P<0.001). A health score based n the subjects complains about health condition, showed significant correlations with intake of energy, carbohydrate, thiamin, and niacin(P<0.05). 3) Average hight was below Korea reference, while average body weight of subjects was close to Korean reference. Average body mass index was 23.0. 4) The average systolic and diastolic blood pressure was 140mmHg/88mmHg, the proportion of hypertension was 32.4 percent. The average hemglobin concentration was 12.7g/dl, only 6.7 percent of subjects were anemic. Serum cholesterol concentration was normal range(140~220mg/dl) in all subjects.

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의미패턴에 기반한 대화체 한영 기계 번역 (Machine Translation of Korean-to-English spoken language Based on Semantic Patterns)

  • 정천영;서영훈
    • 한국정보처리학회논문지
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    • 제5권9호
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    • pp.2361-2368
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    • 1998
  • 본 논문에서는 한국어대화체를 분석하고 의미패턴에 기반한 대화체 한영 기계번역 시스템에 대하여 기술한다. 한영 기계번역에서 구문정보를 이용한 한국어 모호성은 의미패턴을 이용하여 해결할 수 있다. 따라서 대화체 번역을 위하여 한국어 스케쥴링 도메인으로부터 추출된 의미패턴에 기반한 시스템을 구성한다. 번역의 강건함을 위하여 한국어 문장 분석시 음절을 건너뛰어 분석할 수 있도록 하였으며, 패턴수를 줄이기 위하여 의미패턴에 옵션을 부가하였다. 실험을 위하여 사용된 데이터는 스케쥴링 도메인으로 실험결과 88%의 번역율을 보인다.

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오스테나이트계 스테인리스강 304 용접부의 초음파 형상 인식 평가를 위한 카오스 시뮬레이터의 구축 (Construction fo chaos simulator for ultrasonic pattern recognition evaluation of weld zone in austenitic stainless steel 304)

  • 이원;윤인식;장영권
    • Journal of Welding and Joining
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    • 제16권5호
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    • pp.108-118
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    • 1998
  • This study proposes th analysis and evaluation method of time series ultrasonic signal using the chaos feature extraction for ultrasonic pattern recognition. Features extracted from time series data using the chaos time series signal analyze quantitatively weld defects. For this purpose, analysis objective in this study is fractal dimension and Lyapunov exponent. Trajectory changes in the strange attractor indicated that even same type of defects carried substantial difference in chaosity resulting from distance shifts such as 0.5 and 1.0 skip distance. Such differences in chaosity enables the evaluation of unique features of defects in the weld zone. In quantitative chaos feature extraction, feature values of 4.511 and 0.091 in the case of side hole and 4.539 and 0.115 in the case of vertical hole were proposed on the basis of fractal dimension and Lyapunov exponent. Proposed chaos feature extraction in this study can enhances ultrasonic pattern recognition results from defect signals of weld zone such as side hole and vertical hole.

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Effect of Weight-Related Concerns and Dietary Behavior on Eating Disorder Risk in Korean Women

  • Kim, Jung-Hyun;Lim, Yun-Sook;Jun, In-Kyung
    • International Journal of Human Ecology
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    • 제9권1호
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    • pp.97-106
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    • 2008
  • This study investigated the relationships between eating disorder risk, body image perception, weight control, and dietary habits in Korean women. Body shape perception, the Eating Attitude Test (EAT-26) and dietary habit information were collected by a self-administered questionnaire to 373 adult women and the data were analyzed by the Chi-square test. 31.4% of the women were classified in the eating disorder group by a score of over 20 points on the EAT-26. Compared to the normal group, more women in the eating disorder risk group perceived that a thin body shape was the ideal body shape and were dissatisfied with their body shape. This group was also more interested in weight control and more likely to try weight control methods. The eating disorder risk group was more likely to skip meals and snacks than the normal group. In addition, they had a greater appetite and a higher frequency of overeating than the normal group. Over 30% of the Korean women surveyed were categorized at high risk of eating disorders. They were more likely to overestimate body weight and shape and tried to control their weight by inappropriate methods. To prevent eating disorders in adult women, nutrition education programs should incorporate strategies to change inaccurate self-body image and to disseminate information about healthy weight control methods.

6dB Drop법에 의한 용접 결함 초음파 신호의 카오스성 평가 (Chaoticity Evaluation of Ultrasonic Signals in Welding Defects by 6dB Drop Method)

  • 이원;윤인식
    • 대한기계학회논문집A
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    • 제23권7호
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    • pp.1065-1074
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    • 1999
  • This study proposes the analysis and evaluation method of time series ultrasonic signal using the chaotic feature extraction for ultrasonic pattern recognition. Features extracted from time series data using the chaotic time series signal analysis quantitatively welding defects. For this purpose analysis objective in this study is fractal dimension and Lyapunov exponent. Trajectory changes in the strange attractor indicated that even same type of defects carried substantial difference in chaoticity resulting from distance shills such as 0.5 and 1.0 skip distance. Such differences in chaoticity enables the evaluation of unique features of defects in the weld zone. In experiment fractal(correlation) dimension and Lyapunov exponent extracted from 6dB ultrasonic defect signals of weld zone showed chaoticity. In quantitative chaotic feature extraction, feature values(mean values) of 4.2690 and 0.0907 in the case of porosity and 4.2432 and 0.0888 in the case of incomplete penetration were proposed on the basis of fractal dimension and Lyapunov exponent. Proposed chaotic feature extraction in this study enhances ultrasonic pattern recognition results from defect signals of weld zone such as vertical hole.

비트맵 필터를 이용한 효율적인 역 리스트 탐색 기법 (Efficient Inverted List Search Technique using Bitmap Filters)

  • 권인택;김종익
    • 정보처리학회논문지D
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    • 제18D권6호
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    • pp.415-422
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    • 2011
  • 텍스트 데이터는 표현 방식의 차이, 타이핑 오류 등을 포함하고 있어 정확히 일치하는 검색으로는 유용한 정보를 얻기 어렵다. 따라서 유사도 기반 검색 방법이 많이 연구되고 있으며 효율적인 유사도 기반 검색을 위해 텍스트 데이터에 대한 역 리스트를 구성한다. 그리고 이를 병합하여 질의와 일정 기준 이상 유사한 데이터를 찾는다. 본 논문에서는 Suffix 필터링 과정에서 역 리스트의 탐색 비용을 줄이기 위해 역 리스트의 통계 정보인 비트맵 필터를 사용하는 기법을 제안한다. 제안하는 기법은 비트맵 필터를 사용하여 Suffix 필터링 과정에서 역 리스트의 탐색 여부를 결정하여 불필요한 역 리스트 탐색을 회피함으로써 역 리스트 병합 비용을 줄인다. 실험을 통하여 제안된 기법이 기존의 연구에서 제안된 Suffix 필터링 알고리즘보다 더 효율적임을 보인다.

철도수송수요를 고려한 정차역 선정과 열차운행방안 -경부선 서울~조치원구간을 중심으로- (A primary study of Rail Station Selection and Train Operation Management Plan with Transportation Demand)

  • 문대섭;정병현
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2001년도 춘계학술대회 논문집
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    • pp.80-87
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    • 2001
  • The purposes of this primary study are the selection of rail station and train operation management techniques for express-rail operation service at the convectional railway electrification. For these analyses, we used the KNR statistics and KROIS data of rail stations and train users by rail line. Therefore, we chose the important stations for express-rail operation of Kyongbu conventional rail line (esp. Seoul-Jochiwon section) through the rail transportation demand. and then, suggested primary operational management plan thorough the effects analyses of decreasing total travel time and increasing transportation demand by train speed-up. This study has some bounds and limits for proceeding, as it does, we excluded as followings: the conditionals of fate system, headways and train diagram, economic/financial analysis and technological assessment, and other railway technological infrastructures and a certain railcar specification, etc. . We propose to enlarge this study into a feasibility study of express or skip-stop operation service and compatible vehicle system decision considering with the best possible investment rail line, furthermore. in front of Kyongbu (Seoul-Busan) high-speed rail open in 2004, we have to try to progress the efficiencies of railway operation applying various train operation management plan.

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초등학생의 아침결식 실태 및 관련요인 (Elementary Schoolers' Skipping Breakfast)

  • 김영혜;주현옥
    • Child Health Nursing Research
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    • 제10권4호
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    • pp.488-495
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    • 2004
  • Purpose: This study is a descriptive study to contribute to children health improvement by finding out the actual state of breakfast and related features of skipping breakfast. Method: The subjects of this study were 724 children. The collected data were analyzed through real numbers, percentage, mean and standard deviation, cross tabulation, χ2-test and t-test using the SPSS WIN 10.0. Result: The rate of the children's skipping breakfast recorded 48.6%. Related Factors to skipping breakfast were sex, income, mother's education level and father's education level. 53.1% of girls skipped breakfast. In case of the group their family's income was over 3 million won/month andtheir father graduated college, the rate of skipping breakfast was low significantly. In groups having breast with rice, soup and side dishes, getting up before 7 A.M. and having good eating habit, the rate of skipping breakfast was low significantly. Conclusion: It is necessary to induce a desirable breakfast habit by health education about the importance and necessity of breakfast. Therefore, it is supposed that parents should pay attention to their children to form the right eating habits and encourage them not to skip breakfast.

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안전형 비납땜 틀고정 영구 접속형 멀티콘센트 개발에 관한 연구 (A Study on Safe Permanent Joint Type Multiple Socket-Outlets Development without Soldering Crimped Connection)

  • 조원석;이위로
    • 조명전기설비학회논문지
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    • 제29권12호
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    • pp.47-54
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    • 2015
  • Normally, multiple socket-outlet is manufactured with soldered, welded permanent connection (termination). Because this procedure is very non-environmental and requires many labor forces, many companies skip this process. To solve this these problems, this research had to design permanent joint type multiple socket-outlet, develop safer multiple socket-outlet than is sold in markets. Progressing this research, we took 3 steps. First, we had to design device for fixing a frame suitable for multiple socket-outlet. Second, this multiple socket-outlet must pass fundamental standards through international standard (IEC 60884-1) and Korean standard (K 60884-1) tests. Third, it had to pass both several mechanical and electrical tests which is more strict than fundamental standards and vibration and impact tests following KS standards for enhancing its safety. After finishing 3 steps, we could obtain objective and fair data, develop environmental permanent joint type multiple socket-outlet without soldering crimped connection.