• 제목/요약/키워드: hands-on

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A Review of Radiation Field Characteristics and Field Tests for Estimating on the Extremity Dose under Contact Tasks with Radioactive Materials (방사성물질과 접촉하는 작업의 손·발이 받는 피폭방사선량 평가에 대한 고찰)

  • Kim, Hee-Geun;Kong, Tae-Young;Dong, Kyung-Rae;Choi, Eun-Jin
    • Journal of Radiation Industry
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    • 제11권3호
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    • pp.123-130
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    • 2017
  • Concerns about high radiation exposure to the hands of radiation workers who may contact with radioactive contamination on surfaces in a nuclear power plant (NPP) had been raised, and the Korean regulatory body required the extremity dose estimation during contact tasks with radioactive materials. Korean NPPs conducted field tests to identify the incident radiation to the hands of radiation workers who may contact with radioactive contamination during maintenance periods. The results showed that the radiation fields for contact tasks are dominated by high energy photons. It was also found that the radiation doses to the hands of radiation workers in Korean NPPs were much less than the annual dose limits for extremities. This approach can be applicable to measure and estimate the extremity dose to the hands of medical workers who handle the radioactive materials in a hospital.

A Literature study on the polyhidrosis of hands and feet (수족한증(手足汗症)에 대한 문헌적(文獻的) 고찰(考察))

  • Chang, Gyu-Tae;Kim, Jang-Hyun;Kim, Hee-Eun
    • The Journal of Pediatrics of Korean Medicine
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    • 제18권1호
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    • pp.273-288
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    • 2004
  • Objective: The purpose of this study was to investigate the oriental cause and treatment of the polyhidrosis of hands and feet. Methods: It was studied 47 kinds of Oriental Medical literature for polyhidrosis of hands and feet Results: Polyhidrosis of hands and feet due to lowered superficial resistance brought on by deficiency of qi. Main pathogenesis(病因病機) is the heat in the middle energizer(中焦熱) such as heat in the stomach(胃熱) and the spleen and stomach heat stagnation(脾胃積熱), deficient in Yin and Yang, qi and blood(陰陽氣血), and retention of undigested food(食積) due to improper diet(飮食不能). Treating method(治法) is eliminating dampness and regulating the stomach(淸熱燥瀑和中), invigorating, replenishing spleen qi(補益脾氣), and nourishing the stomach Yin(滋養胃陰). Treating prescription(治方) is presented as Palmultang with Additional Ingredients Rhi.zoma Pinelliae, Pona for principle drug Rhi.zorm Typfwnii Radix Aconiti for adjuvant and messenger drug(八物湯加半夏 茯笭君 白附子 川烏爲在使), Daeshihotang(大柴胡湯), Cheongbisan(淸脾散), Moryeosan(牡蠣散) etc. The external treatments(外用法) are described as ways of washing hand and foot after steaming with boiled Decoction(牡蠣散) of AJurnen(白礬); Radix Puerariae(乾葛), Radix Astragali(黃?); Radix Puerariae(乾葛), Herba Schiwnepetae(荊芥); Radix Saposhnikoviae (防風), 白礬(AIumen). The acupuncture recipes (鍼治療法) are the toninfication(補) of Buryu(KI 7)(復溜) ; Eumgeuk(HT 6)(陰?), tonification(補) methods of Buryu(KI 7)(復溜) ; Gihae(CC 6)(氣海) and reduction(潟) of Hapgok(LI 4)(合谷), the reduction(潟) of Hapgok(LI 4)(合谷), tonification of Buryu(Kl 7)(復溜), reduction(潟) of Jigu(TE 6)(支溝) ; Taechung(LR 3)(太衝) ; Yangneungcheon (GB 34)(陽陸泉). and selection of points of Hapgok(Li 4) (合谷) and Nogung(PC 8)(勞宮). The Tui-na therapies (推拿療法) are removing heat from the stomach meridian(淸胃經O) and so on.

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Classification of Hand Types for the Development of Glove Patterns (장갑 패턴 개발을 위한 손의 유형 분류)

  • Lim, Ji-Young
    • Journal of the Korean Home Economics Association
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    • 제43권8호
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    • pp.115-122
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    • 2005
  • The hand performs functions such as grabbing and other movements. In order to accomplish these movements in various kinds of operational environments, appropriate gloves must be worn to protect your hands. Choosing the appropriate type of glove is very important when wearing gloves in these types of operational environments. The reasons one wears gloves varies depending on age and gender. Unmarried women in their early twenties, for example, occasionally wear gloves for decoration rather than for functional reasons. However, previous studies examined a range of topics, and as such investigations dealing with specific body shape and demands of consumer are needed. Therefore in this study, the hands of unmarried women ranging in age from 20 to 24 were measured and hand shape types were analyzed in order to present basal data which can be used to help design improved glove patterns and produce appropriate, functional gloves. A total of 261 Korean women were measured. Fifty-seven right hand dimensions were measured and five dimensions from both hands were measured. Six factors were identified through factor analysis and those factors constituted $73.259\%$ of total variance. Two clusters of hand shapes were categorized using 6 factor scores by cluster analysis. Type 1 hand shape is defined as long hands with small width, girth, and thickness, long and thin fingers, and high vertical palm height. Type 2 hand shape is defined as short hands with large width, girth and thickness, short fingers, thick knuckles, and short vertical palm height. The characteristics of type 1 and 2 hand shapes are similar to women's hand type classification results from previous reports, but there was a significant difference in subject distribution by type. Therefore, standard data on hand shapes should be produced by developing measuring instruments and selling more accurate standard measuring points. By doing this it could help in the development of improved glove patterns, and also aid in planning production based on hand type.

Median and ulnar F-wave inversion as a supplementary criterion for diagnosis of carpal tunnel syndrome

  • Kim, Yoohwan;Jang, Jae-Hong;Cho, Charles S.;Kim, Byung-Jo
    • Annals of Clinical Neurophysiology
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    • 제19권1호
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    • pp.13-19
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    • 2017
  • Background: Median F-wave latencies are physiologically shorter than ulnar latencies, but they are often longer relative to ulnar latencies in carpal tunnel syndrome (CTS). This study aimed to investigate the value of absolute F-waves and relative latency changes compared to ulnar latencies in the diagnosis of CTS. Methods: F-wave latencies of median and ulnar nerves in 339 hands from 339 patients with CTS and 60 hands from 60 control subjects were investigated. Mean F-wave minimal latencies of median and ulnar nerves were compared between groups. Patients were further divided into subgroups based on Canterbury grading and then analyzed using F-wave latency differences (FWLD) and F-wave ratio (FWR). Results: Of 339 hands in the CTS group, 236 hands exhibited F-wave inversion based on the FWLD criterion and 277 hands had F-wave inversion based on the FWR criterion. F-wave inversion had a sensitivity of 81.7% using the FWR criterion to diagnose CTS. The mean FWLD and FWR were significantly greater in all patient subgroups compared to the control group (p < 0.001). In addition, mean FWLD and FWR showed significant correlations (r = -0.683 and r = 0.674, respectively, p < 0.001) with disease severity. Conclusions: F-wave studies are effective supplementary diagnostic tools comparing to other standard electrophysiologic criteria for screening patients with CTS.

Characteristic of Human Static load Acting on the Lightweight Wall (경량벽체에 작용하는 인간에 의한 정적하중의 특성)

  • Song, Jung-Hyeon;Choi, Soo-Kyung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 한국건축시공학회 2013년도 추계 학술논문 발표대회
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    • pp.192-193
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    • 2013
  • The purpose of this research is to comprehend experimentally the nature of human static load to wall for making use of the result as basic data to evaluate resisting force of lightweight wall. Human motions exerting static load are classified to 4 types, and two-hands pushing and shoulder pushing are defined as the instantaneously forcing motions with hands or shoulder put on the load plate, respectively. Back leaning and one-hand leaning are defined as motions of taking a rest in their respective comfortable posture. Measurement of static horizontal load caused by each motion showed that the highest load ratio depends on hardness of load plane and was 1.17~1.25 times of weight in two-hands pushing, 0.95~0.99 times in shoulder pushing, 0.16~0.18 times in back leaning, and 0.12~0.15 times in one-hand leaning.

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An Investigation into the QuaIifications Necessary for Science Hands-on Exhibit Guides from the Producer's Point of View

  • Kim, Eun-Sook
    • Journal of The Korean Association For Science Education
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    • 제27권8호
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    • pp.693-698
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    • 2007
  • Science hands-on exhibits are increasingly popular, especially during vacation time. These exhibits hire guides to help visitors to understand the contents. In this study, the qualifications of the guides are investigated through interviews with the producers who run the exhibit. There were two main questions the researcher was interested in during the interviews. One was the importance of the science background of the guides. The second was the characteristics of guides that the producers consider important for successful exhibits. The results show that a science background is not an important qualification in the view of most of the producers. Many factors other than science, such as accountability or social skills, were considered to be of greater importance than a background in science.

Bacterial Contamination on the hands of the Middle School Students in Seoul City (서울시내 중학생의 손오염에 관한 세균학적 연구)

  • Lee Myung-Won;Chung Tae-Wha;Moon Kwang-Hee;Min Kyung-Hee
    • Journal of environmental and Sanitary engineering
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    • 제3권1호
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    • pp.19-26
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    • 1988
  • This Study was performed from Feb. 4th Feb. 15th. 1985 in order to investigate if the rate of the contamination of students' hands were affected by sexes and grades of middle school. The sampled 29 students were selected from the 1st. and 2nd. grades of the middle school. The hands-washed salines were cultured for the isolation of microorganisms. The results were as follows: 1. It was found to be contaminated by 17 Genera of bacteria such as Staphylococcus, Streptococcus, Micrococcus, Bacillus, Neisseria, Branhamella, Acinetobacter, Moraxella, Ozromobacterium, Alcaligenes, Flavobacterium, Pseudomonas, Actinobacillus, Pasteurella, Vibrio, Enterobacteria and Plesiomonas. 2. The strains from 30 isolates were identified as 9 species, Staphylococcus aureus, Staphylococcus epidemidis, Micrococcus varians, Branhamella catarrhalis, Acinetobacter anitratus, Moraxella bovis, Moraxella urethralis, Pseudomonas aeruginosa and plesiomonas shigeiloid. 3. The frequency rates on 17 Genera appearances on Students' hands were Staphylococcus $(96.6\%)$, Enterobacteria $(41.4\%)$, Bacillus $(20.7\%)$, Branhamella $(17.2\%)$ et. 4. There was significant difference in cell number between hans of boys & girls. The rate of contamination of girls' hands, especially 2nd grade girls, was lower than boys' hands. This result showed that girls' hands were more clean.

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Survey on Personal Medicines in Cheju Island (제주도 민간요법에 관한 조사연구)

  • Lee, Kyung-Hee
    • Journal of East-West Nursing Research
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    • 제2권1호
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    • pp.37-53
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    • 1997
  • The purpose is to inspect the personal medicines in Cheju island that are used traditionally and to get their characteristics. The subjectives are 39 Cheju people, men 10, women 29, who were horned, grown up in Cheju and agreed with this study. The ranges of age are 10 persons(m : 1, w: 9) over 40 less 50 years old, 14(m : 7, w : 7) over 50 less 60, 5(m : 1, w : 4) over 60 less 70, 6(m : 0, w : 6) over 70 less 80, and 4(m : 1, w : 3) over 80. The average age is 64.5 years old. The method to collect the data is 20 structured opening questionaires that are based on references. The duration to collect datas is 11days from 4th, Aprill 1997 to 14th, Aprill 1997. The workers who are trainned the interview methods went their villages and got answers after explaining the purpose and contents to them. Somtimes they used to record the answers. The analysis was identified the subjectives to four regions of Cheju, arranged answers with items, rearranged the same answers, counted with number and percentage. And classified the materials and characteristics. The results of this study are followed: The things that is used as personal medicines are the effects through experiences ans misteries that have hand down by word of mouth, even though they are not scientific. People used the materials arround their circumference. It is an accumulation of experiences. The ways used in eating, doing acupuncture or sting, exposing to smoke, wheedling, fixing after pounding. Almost materials are plants. Mugwort is effective in fever, gastritis, hemorrhoid, diarrhea, edematous hands or feet and dermatitis. Citron and Arrowroot in fever, gastritis. Seeds of Pumpkin in indigestive, hemorrhoid, edematous hands or feet. Gallic in fever, diarrhea, frostbite, dermatitis, and toothache. Motherwort in diarrhea, gastritis. Radish juice in indigestive, jaundice. Bean paste in burn, wound. Acupuncture in fever, gastritis, indigestive, back pain, edematous hands or feet. Sting as similar with it in fever, indigestive, edematous hands or feet. Cigarrette in hemorrhoid, wound, toothache. Cowstools in edematous hands or feet, wound. Sault is usded a lot in fever, gastritis, indigestive, hemorrhoid, uneffective voiding, edematous hands or feet, dermatitis, having a boil around the mouth, toothache, and eye disease. Japanese Parsley in fever, gastritis. Egg Apple in diarrhea, edematous hands or feet, frostbite. And Wild Chrysanthemum is effective in jaundice. In the conclusion, people used the things arround. A things is effective in several symptoms. If these are not effective, they would used the magic as god's anger. As locally, they used the grasses and fruits in the middle of Mt. Halla and seafood on the sea village.

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Analysis on the Status of the Pilot Project to Spread Hands-on Robots in Elementary After-School (초등 방과후학교 교구로봇 시범사업 현황 분석)

  • Kim, Deok-Gwan;Ryuh, Young-Sun;Han, Jeong-Hye
    • Journal of The Korean Association of Information Education
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    • 제14권1호
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    • pp.79-87
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    • 2010
  • To support the expansion of diversity for schooling and make a plan for systematic robot education Ministry of Knowledge Economy did Pilot Project of Hands-on Robot at 68 Elementary Schools after building up the supporting system for teachers to practically use robots such as training course with Hands-on Robot. According to this, this paper will be shown about the analysis results of preliminary data about next expansion project of Hands-on Robot through analyzing the current status of Pilot Project of Hands-on Robot at Elementary After-School. For this, status of offered lesson and usage of teaching aids and materials, the number of regular/part-time teachers, students' satisfaction and so on at schools which are listed for the Pilot Project. The results show that at most of elementary schools students' creativity and interests about robots was increased and they tried to take the classes actively with high concentration. In spite of these positives, improvement needs for textbooks were also ascertained, therefore proper textbooks for student and teaching aids to bring on variable activities of students shall be based on additionally for the success.

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Comparison of Cross-contamination of Salmonella spp. on Pork Meat and Workers' Hands during Pork Cutting Processing (돈육 가공공정에서 돈육과 작업자 손 간의 Salmonella spp.의 교차오염 비교)

  • Hong, Chong-Hae;Bahk, Gyung-Jin
    • Food Science of Animal Resources
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    • 제28권5호
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    • pp.562-566
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    • 2008
  • This study describes cross-contamination events that occur in animal food processing. We analyzed the number of Salmonella spp. contamination transferred from pork meat to workers' hands (wearing polyethylene gloves; PG, cotton gloves; CG, and bare hands), cutting boards and knives, and vice versa. Transfer rate of CG 38.80% was higher than that of PG 3.11% and bare hands 1.35%. In particular, when wearing CG, the transfer rate from the CG to bare hands with CG was 0.07%. Also, the range of transfer rates from the contaminated pork meat to cutting board and knife was 0.20-1.99%. In contrast, the transfer rates from the worker's hands (with PG/CG and bare hands) to cutting board, knife, and pork meat ranged from 0.0015-0.21%. There was a lower transfer rate from workers' hands than from pork meat. These findings indicate that the use of PG compared with CG could effectively reduce or prevent the cross-contamination and provide important information concerning the consecutive transfer of Salmonella spp. during food processing.