• Title/Summary/Keyword: Hand Technique

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A Study on the Characteristics of a Hand-made Lens (실험 렌즈의 특성에 관한 연구)

  • 강현덕
    • Journal of the Korean Graphic Arts Communication Society
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    • v.13 no.1
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    • pp.57-72
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    • 1995
  • The function and technological merit of electronic image editing system using time-code addressing method are investigated. The method shortens the editing time and gives high accuracy. It is possible to digitize the editing system for high resolution and to vary and to systemize the VTR editing technique by this method.

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Effectiveness of 70% Alcohol Solution and Hand Washing Methods on Removing Transient Skin Bacteria in Foodservice Operation (급식시설의 손 세척을 위한 70% 알콜 소독제 사용 및 세척방법의 적용효과 분석)

  • Gwak, Dong-Gyeong;Jang, Hye-Ja;Ryu, Gyeong;Kim, Seong-Hui
    • Journal of the Korean Dietetic Association
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    • v.4 no.2
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    • pp.235-244
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    • 1998
  • Hand washing is an important component of hygiene program for food handlers. Hands can be a source of direct or indirect contamination of foods with pathogenic microorganisms. In this study, the effectiveness of hand washing methods and the use of 70% alcohol solution against transient skin bacteria was tested in an university foodservice facility. 70% alcohol solution is sprayed for 5 seconds automatically when hands are placed in the dispenser. Samples were taken using swab technique in meat cutting area, vegetable trimming area, and vegetable cutting area: before and after washing hands according to planned methods, and after being sprayed with 70% alcohol solution after washing hands. The bacteriological analysis of total plate counts, coliform, fecal coliform of food handlers' hands was done. Statistical data analysis was completed with Mann-Whitney U test and Kruskal-Wallis model using the SPSS program. The levels of initial contamination of workers' hand were significantly different by the work areas($x^2$=9.156, p<0.01). Workers in the vegetable trimming area had more heavily soiled hands than in the other work areas. Mean of TPC counts and coliform was 8.97×$10^5$ CFU/12.4$cm^2$, 2.93×$10^2$ MPN/12.4$cm^2$ respectively, but fecal coliform was not detected. Transient bacteria were removed from hands after washing and using 70% alcohol solution but were not removed completely. Mean reduction percentage in TPC varied among work areas and ranged from 93.19% to 94.99%, and in coliforms from 97.31% to 100%. A significant difference in TPC was found between before and after hand disinfection (Z=-2.714, p<.01) and between standardized hand washing procedures and un-standardized hand washing procedures(z=-2.301, p<.01). Subjects using the hand sanitizer showed a great elimination of TPC(99.45% reduction), but this effect was valid only after following proper washing procedures. Based on the results, the most effective hand washing method was recommended as the combination of the standardized hand washing procedure with warm-water and use of the 70% alcohol solution. The results can be used to develop hand hygiene programs and training strategies for enhancing hand hygiene practices for food handlers in foodservice operations.

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The Study on Technique and Design Appeared in Textile of Miaos in China (중국내 묘족의 직물에 나타난 기법과 문양 고찰)

  • 부애진;홍정민
    • Journal of the Korean Society of Costume
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    • v.37
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    • pp.149-162
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    • 1998
  • This study is thed Embroidery, Cross-stitchery, Weaving, Wax-Printing of technique and design appeared in textile of Miaos dwells in south-west among the minority people of china. The study is as follows. First, the technique of textile1) satin stitch, couching stitch, french-knot stitch, etc. using anther silk thread or cotton thread color 2) cross-stitchery 3) hand-weaving technique which is shaped other warp or weft using simple loom 4) the technique of dyeing of pattern using effect with wax. These methods are singly used mixing together, therefore doubled beauty. Second, these technuque of ornament have other independence, specially ornament apron, sling, sleeve borders, slack borderss, edge of upper garment, take off and put on easily, heighten effect of various ornament, can preserve many years. Third, Maker, female born in this country fashion by need of herself, used liberal method shown in unique creativity of life. This texture make standards capable female proud of intelligent and skill of herself. Fourth, Design appeared in textile like as pattern flying bird in the sky, strolling beast in the field, lion rolling gem, laughing dragon winding snake at gem, birks, flowers, fish, butterfly is used as the wish of long life, a lucky sign. They expressed creativity and unique conception using formation : the technique transform other shape using by omitting or adding or overestimating. Geometric pattern of tartan, revealing, Fifth, composition structure having balance and symmetry or contradiction towards center and circumstance of the center harmonized repeatedly method, expressed unique artful attraction by full composition.

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Sketch-based 3D modeling by aligning outlines of an image

  • Li, Chunxiao;Lee, Hyowon;Zhang, Dongliang;Jiang, Hao
    • Journal of Computational Design and Engineering
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    • v.3 no.3
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    • pp.286-294
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    • 2016
  • In this paper we present an efficient technique for sketch-based 3D modeling using automatically extracted image features. Creating a 3D model often requires a drawing of irregular shapes composed of curved lines as a starting point but it is difficult to hand-draw such lines without introducing awkward bumps and edges along the lines. We propose an automatic alignment of a user's hand-drawn sketch lines to the contour lines of an image, facilitating a considerable level of ease with which the user can carelessly continue sketching while the system intelligently snaps the sketch lines to a background image contour, no longer requiring the strenuous effort and stress of trying to make a perfect line during the modeling task. This interactive technique seamlessly combines the efficiency and perception of the human user with the accuracy of computational power, applied to the domain of 3D modeling where the utmost precision of on-screen drawing has been one of the hurdles of the task hitherto considered a job requiring a highly skilled and careful manipulation by the user. We provide several examples to demonstrate the accuracy and efficiency of the method with which complex shapes were achieved easily and quickly in the interactive outline drawing task.

A Study on Assessment Standard for Environmental Impact Assessment (한국에서의 환경영향평가 평가기준에 대한 연구)

  • Lee, Mu-Choon
    • Journal of Environmental Impact Assessment
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    • v.2 no.2
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    • pp.111-116
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    • 1993
  • The EIA system was developed during ten odd years of introduction. On the other hand, the contentional development representing systematical fidelity does not match to it. I surveyed the problems of EIA on the point of environmental items with no legal standards. EIA is being executed only once on the planning stage. If the present EIA system has two times of execution, the quality of EIA will be much better. First, on the stage of deciding location of the project, EIA should be done. And next, detailed EIA should be done on the stage of executing the project. To describe the problems of EIA, I surveyed the legislations on the point of the former stages, investigation of present status and anticipation. And I tried a theoretical approach to EIA. The knowledge of things, the subject's standpoint and his valuation are all put together in the EIA. The knowledge of relationship between air and water pollutants and their impact on human is accumulated much. On the other hand, the knowledge of the compounded item, fauna-flora(natural ecology) is partial and causes many difficulties. I pointed out the absurdities of assessment technique dealing the standards and introduced assessment technique being applied to items with no physico-chemical standards such as wild lives.

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A Configuration Technique for Dynamic Development of Mobile Web (모바일 웹의 동적개발을 위한 설정기법)

  • Kim, Chul-Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.6
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    • pp.3841-3850
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    • 2014
  • Owing to the rapid supply of mobile devices, the requirements of users for new mobile software has increased and software vendors (developers) should be able to provide software fast and appropriately. On the other hand, the mobile application in a mobile platform architecture should pass through a complex process to provide the modified mobile application to users and cannot provide an update quickly and immediately. On the other hand, the use of the mobile web is growing because a mobile web can provide an immediate modification of various update requirements to users. Therefore, this paper proposes a dynamic configuration technique for enhancing the productivity of the mobile web development and maintenance in this paper.

ENAMEL SURFACE EVALUATION ON VARIOUS REMOVAL TECHNIQUE OF BRACKET (DBS): A STUDY WITH THE SCANNING ELECTRON MICROSCOPY (수종의 BRACKET(DBS)제거방법에 따른 법랑질 표면에 대한 주사전자현미경적 연구)

  • Song, Jung-Kook;Sohn, Byung-Hwa
    • The korean journal of orthodontics
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    • v.15 no.2
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    • pp.271-277
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    • 1985
  • With modification of the acid etch technique and improvements of the physical and mechanical properties of the acrylic resin, the removal of directly bonded attachments and the finishing of the underlying enamel have become an acute clinical problem. This study was to evaluation the efficacy of recently introduced instrumentation and techniques to remove bonded brackets and residual resin, and restore the affected enamel surface to an acceptable clinical condition. Fortyeight premolar which were scheduled for extraction for orthodontic purposes were bonded with brackets using super-C ortho. Four additional premolars with untreated surfaces were used as controls. After one weak the brackets were removed and the residual resin removed by hand scaler, green stone, green rubber wheel, sandpaper disc, tungsten carbide bur, Sof-lex disc. Half the experimental teeth were given a final pumicing and then all were extracted and stored in 50 percent ethanol. The scanning electron microscopy was used to evaluated the enamel surface. Following results were obtained; 1. A satisfactory result was obtained by means of the Sof-lex disc. 2. The order of the scratch formation was the procedure using hand scaler, green atone, tungsten carbide bur, sandpaper disc, green rubber wheel, and Sof-lex disc. 3. The procedures using green stone and tungsten carbide bur showed many groove formations and the other procedures showed none. 4. final pumicing serves effectively to remove residual adhesive and restore the enamel surface.

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A Proposal for Effect Analysis Techniques of Kidney Hand Acupuncture through Face Image and Voice Signal Measurement (얼굴 영상 및 음성신호 측정을 통한 신장 수지침 효과 분석 기법의 제안)

  • Kim, Bong-Hyun;Cho, Dong-Uk
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37 no.3C
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    • pp.217-223
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    • 2012
  • In this paper, we would like to propose techniques to analyze effect according to stimulation kidney associated hand acupuncture by applying technique to measure changes of facial image and voice signal. To this end, we measured color change of JIGAK(jaw) area associated kidney in facial image and voice signal stimulation before and after of kidney associated hand acupuncture. In addition, we measured changes of the first formant frequency bandwidth and Shimmer to element of voice signal analysis in connection with kidney in experiment. We can be measured reduction of the first formant frequency bandwidth and Shimmer, black of JIGAK area according to stimulation of kidney associated hand acupuncture. Finally, we would like to demonstrate objective effect of kidney associated hand acupuncture through the analysis of statistical significance by measurement techniques of facial image and voice signal.

The Assessment of Hand for Enzyme Hydrolyzed Denim fabrics(Part II) -subjective evaluation of cotton fabric- (셀룰라아제 처리된 데님직물의 태에 관한 연구(제2보) -면직물의 주관적인 태 평가-)

  • 김경애;이미식;김정희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.25 no.1
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    • pp.115-123
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    • 2001
  • This paper discussed the assessment of hand of cotton fabrics by enzymatic hydrolysis. The subjective hand and preference of denim fabrics finished by enzymatic hydrolysis were evaluated using the scale developed. The factors affecting consumers taste for denim fabrics were analyzed by the statistical technique. The effects of enzymatic hydrolysis on the properties of cotton fabrics were also evaluated by subjective hand measurements. The results are as follow; As the weight loss increased, evaluators thought that fabrics become finer, smoother, softer, warmer and more refined, and the sense of durability is sleeker and weaker, and the sense of weight is more flexible, flossier, lighter, softer, thinner. They didnt catch the change of moisture related properties according to the rate of weight loss. They also thought fabrics became more elastic, and less wrinklier as the weight loss increased. As the weight loss increased, the fabric was more preferred. The limited weight loss which changes the preference from \"dislike\" to \"like\" was 12.87%. The most preferred fabric was that with 12.87% of weight loss. It is supposed that the preference of fabric was related to the terms such as \"sum-se-ha-da\"(섬세하다), \"mai-ku-rup-da\"(매끄럽다), \"yoo-yon-ha-da\"(유연하다), \"too-bak-ji-an-da\"(투박하지 않다), \"chom-chom-ha-da\"(촘촘하다), \"gil-ki-da\"(질기다), \"kun-juk-goe-ri-ji-an-da\"(끈적거리지 않다), \"ku-kim-i-ka-ji-an-nun-da\"(구김이 가지 않는다).

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