• Title/Summary/Keyword: 골격

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Characterization of electrochemical behaviour for supercapacitor based on porous activated carbon composite with various contents of metal-organic framework(MOF) (금속유기골격체(Metal-organic Framework)의 함량에 따른 다공성 활성탄소 복합재료 기반 슈퍼커패시터의 전기화학적 거동 분석)

  • Jeong, Hyeon Taek;Kim, Yong Ryeol
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.5
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    • pp.1200-1207
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    • 2020
  • We have fabricated the supercapacitor composed of porous activated carbon, metal-organic framework (MOF) with polymer based solid state electrolyte as a "ion gel" and characterized its electrochemical behaviour as a function of the MOF contents. The electrochemical properties of the supercapacitor were analyzed via cyclic voltammetry(CV), electrochemical impedance spectroscopy(EIS) and galvanostatic charge/discharge test. As a results, the supercapacitor based on porous activated carbon/MOF composite showed the highest capacitance value at 0.5 wt% of MOF contents and decreased capacitance with increase MOF contents over the 0.5 wt%. Consequently, the porous activated carbon/MOF composite based supercapacitor is applicable to various aspect for energy storage device.

Relations between Self-reported Symptoms of Industrial Workers' Work-related Musculoskeletal Disorders and Psychosocial Factors (산업체 근로자의 작업관련성 근골격계질환의 자각증상과 사회심리적 요인과의 관계)

  • Ko, Dae-Sik
    • The Journal of the Korea institute of electronic communication sciences
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    • v.7 no.6
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    • pp.1463-1469
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    • 2012
  • This study aims to identify the relations between self-reported symptoms of industrial workers work-related musculoskeletal disorders and psychosocial factors. The subjects of the study were 120 male workers who were using the rehabilitation center of K company and they were voluntarily interviewed with a use of organized questionnaire. Except the responses from eighteen subjects whose responses were insincere and who had disorders in musculoskeletal areas, the responses of 102 ones were decided for the final analysis. The results showed that there were significant differences in self-reported symptoms of work-related musculoskeletal disorders between the subjects according to smoking, physical burden and self-efficacy. To prevent and control work-related musculoskeletal disorders, multi-characteristic aspects of how the disorders appeared and psychological factors, in particular, self-efficacy, should be carefully considered. Then, as psychosocial factors affect musculoskeletal disorders, relations between the disorders and factors should be analysed through long-term follow-up studies, psychosocial factors should be actively intervened, and the effect should be evaluated.

Multifocal Skeletal Muscle Metastasis from Kidney Cancer (Transitional Cell Carcinoma) - A Case Report - (신장암의 다발성 골격근 전이 - 1례 보고 -)

  • Rhee, Seung-Koo;Kang, Yong-Koo;Park, Won-Jong;Chung, Jin-Wha;Sur, Yoo-Joon
    • The Journal of the Korean bone and joint tumor society
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    • v.8 no.2
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    • pp.48-53
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    • 2002
  • Although direct skeletal muscle invasion by carcinoma is well recognized, distant metastasis to skeletal muscle is uncommon. Furthermore, multifocal skeletal muscle metastasis is a very exceptional event. Some factors such as variable intra-muscular blood flow, mechanical factors including turbulent blood flow and muscle contraction, intra-muscular acidic condition, lactic acid, protease inhibitors in the extra-cellular matrix were proposed as causes of the rarity of distant metastasis to skeletal muscle. We report here a case of a 67 year old male who had multifocal skeletal muscle metastasis from the transitional cell carcinoma of left kidney.

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An Analysis of the Factors Related to Musculoskeletal Symptoms among Teacher Librarians (사서교사의 근골격계질환 자각증상 관련 요인 분석)

  • Eun-Jung Shin;Bong-Suk Kang
    • Journal of the Korean Society for information Management
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    • v.41 no.3
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    • pp.411-429
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    • 2024
  • This study aims to identify the symptoms and related factors of musculoskeletal disorders among teacher librarians, with the goal of raising awareness about their health and safety, and providing foundational data for the prevention of musculoskeletal disorders. An online survey was conducted with teacher librarians working in elementary, middle, and high school libraries, and data were analyzed based on responses from 204 participants. The survey provided by KOSHA was utilized to identify the musculoskeletal disorder symptoms and the collected data were analyzed using the SPSS 29.0 program. Of the 204 librarian teachers, 92.6% have experienced symptoms of musculoskeletal disorders such as pain, soreness, and tingling in relation to their work over the past year. Additionally, 20.6% were classified as normal, 44.1% as requiring management, and 35.3% as reporting pain. By body part, the highest incidence was reported in the hands·wrists·fingers, followed by the lower back, shoulders, neck, arms·elbows, and legs·feet.

Work Related Musculoskeletal Symptoms and their Related Factors in Radiological Tehnologist. (치료방사선사의 직무에 의한 신체손상(근골격계 증상)에 관한 연구)

  • Lee, Byung-Chul;Cho, Jung-Hee;Shin, Dong-Bong;Woo, Jung-Yeol;Park, Jae-Il
    • The Journal of Korean Society for Radiation Therapy
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    • v.16 no.1
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    • pp.39-50
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    • 2004
  • This study was carried out to evaluate the effect of general and occupational characteristics musculoskeletal symptoms in Radiological Technologist who working in present department more than 1 year. Standardized questionnaire of NIOSH and organized questionnaire for 재rk-related musculoskeletal was to 72Radiological Technologist, employed in 6general hospital in Seoul in September, 2003. The symptom prevalence rate of musculoskeletal symptoms were neck ($33.3\%$), shoulder ($33.3\%$), arm($12.5\%$), hand($13.9\%$), spine($34.7\%$)leg/knee/foot ($31.9\%$), arm/wrist/hand ($16.5\%$).

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