• 제목/요약/키워드: 류정숙

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A Study on the Reduction of Vibration in Gear Driving System by Tooth Modification (치형수정에 따른 기어구동계의 진동저감에 관한 연구)

  • 신용호;류성기
    • Proceedings of the Korean Institute of Industrial Safety Conference
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    • 1998.11a
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    • pp.241-246
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    • 1998
  • 기어는 동력을 전달, 전환하고 있는 기계요소로 회전비의 선택이 자유롭고 확실한 전달비를 가지고 있어 기계회전계에 많이 이용되고 있다. 최근 산업이 고도로 발전함에 따라 기계회 전계는 고속, 고부하, 정밀화, 경량화가 요구되고 있으며, 기어구동계도 신뢰도, 정숙성, 효율향상, 내구성 등이 요구되고 있다. 최근에는 진동과 소음의 발생으로 인해 기어구동계의 많은 성능을 저하시키고 있어 저진동, 저소음 기어 개발이 시급한 실정이다. (중략)

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Development of Floral Designs by Using Potted Plants (분화류를 이용한 화훼장식 디자인의 개발)

  • Byun, Mi Soon;Lee, Jin Ho;Kim, Jung Sook;Kim, Kiu Weon
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.3
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    • pp.186-195
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    • 2008
  • This works were developed for showing the diversity in natural and unnatural compositions. Floral designs works were created by using potted plant. Structures of spherical, cylindrical, pyramidal, and parasol type were constructed ahead of decoration with potted plants. Containers made of transparent umbrella, pottery, jute, etc. were used for planting plants. Novel ideas to decorate uncomfortable spaces were presented. As appreciation period of potted plants is long, it is expected that the designs and works using potted plants will be suitably utilized in various space.

Volatile Flavor Components of Soybean Paste(Doenjang) Prepared from Different Types of Strains (균주를 달리한 된장의 향기 성분)

  • Park, Jung-Suk;Lee, Myung-Yul;Kim, Kyong-Su;Lee, Taik-Soo
    • Korean Journal of Food Science and Technology
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    • v.26 no.3
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    • pp.255-260
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    • 1994
  • Four types of soybean paste(Doenjang), using traditional meju, koji, natto meju and mixture of koji and natto meju, were manufactured and fermented for 90 days. Analyzed volatile flavor components by GC-MS were confirmed to be thirty-six components including 5 alcohols, 5 aldehydes. 8 ketones, 3 acids, 9 esters and 6 miscellaneous ones. Traditional soybean paste tested had 29 components, koji and koji-natto soybean paste $26{\sim}24$ and natto soybean paste had 20 ones. Alcohol was found to be the most abundant volatile flavor components in all samples group. Traditional soybean paste had higher ratio of carbonyl to ester than any other types of soybean paste while koji-natto soybean paste had the lowest ratio of their components. The newly identified five volatile flavor components were 3-ethoxy-l-propene, dihydro-2-methyl-3-furanone. 1-hydroxy-2-propanone, 1-(2-furanyl)ethanone and 2-acethyl ethylhexanoate.

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Current Status and Perception of Abused Drugs by Gender Among Young People (청년층의 성별에 따른 남용약물에 대한 사용실태와 인식)

  • Hyun-Ju, Jeong;Jeong-Sook, Park
    • Journal of Industrial Convergence
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    • v.21 no.2
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    • pp.79-84
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    • 2023
  • This study was analyzed based on 1051 analyzes of questionnaires in order to examine the status and perception of abused drugs according to the gender of the young people entering the adult group from the adolescents. The gender of the young people who participated in the survey was 686 males and 365 females, and the types of abused drugs and their perceptions of harmful effects of narcotics and abused drugs were analyzed according to gender. As a result of the study, the experience of using alcohol, tobacco, appetite suppressants, sedatives, and opioid analgesics was statistically significant according to gender. Among the harmful effects of narcotic drugs and drugs of abuse, significant results were shown on the recognition of risks, induced problems, and sympathy for risks. As for the desirable way to improve the problem of narcotics and substance abuse, 257 women (68.2%) of women wanted publicity (enlightenment) activities, and about effective education for preventing narcotics and substance abuse, 379 men (54.2%) of men %) appeared as online online education. It is considered that proper education and publicity about drug use is necessary in the reality that drug addiction among young people due to drug abuse is increasing.

Delphi analyses for the activation of program for the public oral health center (보건소 구강보건센터운영 활성화 프로그램 개발을 위한 델파이 분석)

  • Lee, Sun-Mi;Hwang, Yoon-Sook;Choi, Boo-Keun;Yoo, Jung-Sook
    • Journal of Korean society of Dental Hygiene
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    • v.14 no.2
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    • pp.269-279
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    • 2014
  • Objectives : The purpose of this study was to investigate the oral health center operation and to activate the program development of public oral health center. Methods : Delphi analyses were utilized by the recruited expert panel from August to September in 2012. Results : The difficulty in operation of the oral health centers is the human resources management. In order to solve the human resources operation, utilization of the local human resources is the best choice of the solution. The next choice was the designation of the oral health expert in Ministry of Health and Welfare. So the expert can activate the public oral health care system for the disabled and the underprivileged classes in the long term. Conclusions : In order to activate the oral health centers, Ministry of Health and Welfare should promote the public health center function connected with the cooperation of the Association of dental hygienists.