• Title/Summary/Keyword: 비숙련자

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Development of Training and Sports Rehabilitation Program Method using Wearable Device (웨어러블 기기를 이용한 트레이닝 및 스포츠 재활 프로그램 방법 개발)

  • Lee, Jin-Wook
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2022.07a
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    • pp.339-341
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    • 2022
  • 이 연구는 현 트렌드에 발맞추어 손상예방, 트레이닝 수업에 보다 양질의 피드백을 제공하여 보다 효율적이고 효과적인 교육프로그램 개선 및 개발하는데 목적이 있다. 부하가 증가될수록 우측 외측광근, 대퇴이두근과 좌측 내측광근, 대퇴이두근, 비복근이 활성도과 증가하였으며, 발의압력은 앞쪽이 증가하였으며 COG 좌/우 안정성이 감소하였다. 초보자들은 자신의 동작이 정확히 인지하고 수행하는지 어려움을 가지고 있으며 선수와 숙련자들은 강력한 근육을 바탕으로 보상작용을 수행해서 정확한 동작을 만들어 결국 근육의 불균형으로 인한 손상을 유발하기도 한다. 이러한 문제점을 웨어러블 기기를 이용하여 즉각적인 피드백을 제공할 수 있어 효율적인 운동지도를 할 수 있을 것으로 생각된다.

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An Unthinking Sage? Plotinus' Model of Non-Deliberative Action (생각하지 않는 현자(賢者)? 플로티누스의 비-숙고적 행동 모델)

  • Song, Euree
    • Journal of Korean Philosophical Society
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    • no.125
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    • pp.63-89
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    • 2019
  • The aim of this paper is to examine the so-called theory of automatic action attributed to Plotinus, according to which the sage can act automatically without deliberation or reasoning. Concerns were raised that such a theory runs the risk of turning the agent into an automaton by reducing action to mechanical reflexes to external stimuli. I attempt to show that Plotinus does not hold a theory of automatic action by arguing that the Plotinian sage's non-deliberative action is not automatic at all. For this purpose, I first draw attention to the non-deliberative action of the World-Reason (i.e. the reason of the World-Soul), which is supposed to present an ideal model of action. Indeed, Plotinus mentions that the World-Reason rules the world "as if automatically". This is, however, meant to indicate the spontaneous and natural manner in which the World-Reason rules. In this respect, the way the World-Reason works is compared to the way nature (i.e. the productive power of the World-Soul) works. But Plotinus points out that the World-Reason knows what to do, whereas nature works without knowing. In this connection, Plotinus makes it clear that the World-Reason does not calculate or deliberate about what to do because it already knows it. To clarify this point, I turn to Plotinus' analogy of practical wisdom (phronêsis) and skill, according to which the World-Reason is compared to an accomplished craftsman or artist, who confidently works without any doubt, hesitation or difficulty, thereby expressing her intelligence, unmediated by deliberation. From this perspective, non-deliberative action according to practical wisdom turns out to be superior to deliberative action. Plotinus admits that there are difficult circumstances in which even the skilled craftsman, unlike the World-Reason who always controls the whole situation, needs to deliberate or calculate, but he is nevertheless confident that the craftsman easily finds the solution. This suggests that the sage, who possesses practical wisdom, can act normally like a great master or virtuoso without deliberation, but in an emergency situation he also employs deliberation, but resourcefully and creatively responds to challenge. The attempt is made to elucidate the Plotinian model of sage's action with the help of Csikzentmihalyi's concept of 'flow' and Annas' application of it to the analogy of virtue and skill. Finally, it is shown that the sage's virtuous action, in spite of being a habituated action, is not a passive, routinized, automatic action, but an active, flexible, intelligent action.

The Development of Checking System for the BLDC Motor Controller by the Driving Current Signal (구동전류 신호에 의한 BLDC모터 제어기 검사기 개발)

  • Youn, Kyung-Sup;Lee, Soo-Heum
    • Proceedings of the Korea Institute of Convergence Signal Processing
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    • 2005.11a
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    • pp.369-372
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    • 2005
  • 산업체에서 사용되는 BLDC 모터 제어보드의 경우에는 대량 생산을 통하여 제작하며, 제작과정에서 발생한 불량 제어보드는 모터의 초기 기동실패와 고속회전시의 소음 및 화재 발생 등의 원인일뿐만이 아니라 이를 사용하여 응용제품을 생산하는 업체의 품질관리면에서 제어보드의 이상유무 확인이 반드시 필요하다. 일반적인 모터 제어보드의 이상 유무는 육안 및 소음에 의한 방법으로 모토의 기동실패나 고속 회전을 통한 소음등으로부터 경험에 의해 판단한다. 그러나 고속 회전시 발생되는 소음으로 모터 제어보드의 이상유무를 판단하게 되면 이상유무 판단에 필요한 시간이 길어져 대규모 생산과정에 적합하지 않을 뿐만아니라 작업자의 경험에 의존하게 됨으로써 생산성에 지장을 주게된다. 또한 검사시간을 줄이기 위하여, 저속 회전만으로 이상유무를 판단하고자 할 경우 소음정도가 약해 이상유무를 판단하기가 매우 어렵고 더욱더 숙련된 검사자를 필요로 하게 되므로 생산공정에 자동검사기의 도입이 필요하디. 본 논문은 BLDC 모터 제어기의 이상이 발생할 수 있는 경우를 고찰하고, 이러한 BLDC 모터 제어보드의 이상상태가 납땜불량 및 소자 파괴 의하여 입${\cdot}$출력이 비정상적으로 이루어 질 경우의 전류신호와 정상일 때의 전류신호를 비교분석한 후 이를 검출할 수 있는 아날로그 회로를 구현하고 실험을 통하여 검증을 하였다. 또한 이러한 BLDC모터 제어기의 검사기를 아날로그 회로로 구현할 경우의 주의점을 고찰한다.

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The Software Design of Automatic Refractometer-Keratometer (자동 시각 굴절력-곡률계의 전자 부문 소프트웨어 설계)

  • Seong, Won;Park, Jong-Won
    • Proceedings of the Korean Information Science Society Conference
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    • 2001.10b
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    • pp.430-432
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    • 2001
  • 일반적으로 안과 의사들과 안경사 등을 포함하는 시각 관련 전문가들은 시력 피검자에 대한 굴절력 측정시 약 30% 이상의 오류율을 가진다고 한다. 이는 검사를 행하는 전문가의 비 숙련도에 기인한다기보다는 그만큼 시각 관련 측정이 유동적이고 민감해서 정확한 측정값을 얻어내는 것이 어렵다는 것을 말해주는 것이다. 만약 자동화된 시스템이 광학계로부터 나오는 영상을 이용하여 내부 처리를 거친 후 정확한 시각 측정치를 검사자에게 알려줄 수 있다면 잘못 측정되는 측정 횟수를 크게 줄일 수 있을 것이다. 본 연구는 형태학적 필터링(morphological filtering)과 그레이-레벨의 신호 강조(signal enhance) 기술들을 이용한 자동 시각 굴절력 측정 시스템을 개발하였다. 본 시스템에서는 광학계로부터 도출된 영상으로부터 첫째로 형태학적 필터링 처리를 행한다. 이 과정은 처리가 어려운 원 영상을 좀 더 다루기 쉬운 상태로 바꿔주는 역할을 하게 된다. 둘째는 일차 처리된 영상에 가해주는 그레이 수준 한계 기법을 통한 신호 강조 기법으로서 이는 영상의 그레이 값 분포가 다양함으로 인해서 발생되는 오차를 줄이기 위해서 사용된다. 그리하여 본 시스템은 정확한 측정값 도출이 어려운 시각 영상에 적용되어 효과적으로 오차를 줄임으로써 보다 효율적인 시각 측정을 가능하게 하였다.

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A Study on a Working Pattern Analysis Prototype using Correlation Analysis and Linear Regression Analysis in Welding BigData Environment (용접 빅데이터 환경에서 상관분석 및 회귀분석을 이용한 작업 패턴 분석 모형에 관한 연구)

  • Jung, Se-Hoon;Sim, Chun-Bo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.9 no.10
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    • pp.1071-1078
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    • 2014
  • Recently, information providing service using Big Data is being expanded. Big Data processing technology is actively being academic research to an important issue in the IT industry. In this paper, we analyze a skilled pattern of welder through Big Data analysis or extraction of welding based on R programming. We are going to reduce cost on welding work including weld quality, weld operation time by providing analyzed results non-skilled welder. Welding has a problem that should be invested long time to be a skilled welder. For solving these issues, we apply connection rules algorithms and regression method to much pattern variable for welding pattern analysis of skilled welder. We analyze a pattern of skilled welder according to variable of analyzed rules by analyzing top N rules. In this paper, we confirmed the pattern structure of power consumption rate and wire consumption length through experimental results of analyzed welding pattern analysis.

An analysis angular movement and performance time during handspring salto forward stretched (핸드스프링 몸펴 앞공중1회 비틀기 동작의 소요시간 및 각운동량 분석)

  • Kwon, Oh-Seok;Yoon, Yang-Jin;Seo, Kuk-Woong
    • Korean Journal of Applied Biomechanics
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    • v.12 no.2
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    • pp.229-244
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    • 2002
  • The purpose of this study were a two-fold: (1) to analyze event and phase of handspring salto forward stretched with turn; (2) to know the differences in the kinematic variables between two groups. A Kwon3D program served for the estimation of this study. The group was divided into three National representative and three well-trained calisthenics in this study. The results of this study revealed that (1) the forward somersault performance was increased when duration time in the air was long during the salto forward stretched that the duration time of Handspring is short, the pressure at takeoff is high, the stride is large, and hands are supporting on the ground quickly; (2) comparing the angular movement of anterior and posterior y axis and vertical z axis, the angular movement of right and left $\times$ axis was higher during the performance. As a result, the national representative players showed better performance in Handspring salto forward stretched with turn.

A Study on the Risk Factors of Work-Related Musculoskeletal Disorders in Librarians of University Libraries (대학도서관 사서들의 작업관련 근골격계 질환 위험요인에 관한 연구)

  • Kim, Jeong-Hyen
    • Journal of Korean Library and Information Science Society
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    • v.42 no.4
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    • pp.243-262
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    • 2011
  • The aim of this study was to investigate musculo-skeletal symtoms and working conditions of university library's librarians to search for the risk factors related to musculo-skeletal symptoms. The study subjects were 266 librarians who were working at 20 university libraries. A self-recording questionnaire was used to investigate the general characteristics, working conditions, job intensity, job satisfaction and stress, education of musculoskeletal disorders and nature of musculoskeletal symptom. Statistical analysis was done by using t-test and multiple regression analysis. The complaint proportion of self-reported positive musculoskeletal symptoms was 62.5% and that of severe musculoskeletal symptoms was 26.1%. Multiple regression analysis showed that low satisfaction of working conditions, high job intensity, irregular mealtime, job stress were closely related to the positive rate of musculoskeletal symptoms. Therefore, it will be necessary to make efforts to reduce the prevalence of musculoskeletal disorders improving working conditions and mitigating the job intensity.

Political Economy of Inequality Mitigation : Experiences of Netherlands and Denmark (불평등 완화의 정치경제 : 네덜란드와 덴마크의 경험)

  • Choi, Youseok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.12
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    • pp.494-502
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    • 2017
  • This study examines how the Netherlands and Denmark lowered the increase in income inequality, at a period in time when income inequality in the world was deepening. This study investigates the level and trend of income inequality in the Netherlands and Denmark compared to those in Korea, the United States, Germany and Sweden. Using the method of the decomposition of changes in income inequality, this study identifies which factors are associated with the changes in inequality in these countries. It also explores which labor market policies mitigated inequality in these two countries. One of the major reasons for the reduction in earned income inequality in the Netherlands is the increased participation of women in economic activity through the increase in voluntary part-time working. In particular, the policies designed to promote equal treatment between full-time and non-regular workers contributed to the active participation of women in part-time work. Using active labor market policies, Denmark improved the proficiency of low skilled and low-wage workers, thereby alleviating the wage gap between high-income and low-income workers. Based on the experiences of the Netherlands and Denmark, this study discusses policy directions to mitigate income inequality in Korea.

Classifying Finger Flexing Motions with Surface EMG Using Entropy and The Maximum Likelihood Method (엔트로피 및 최대우도추정법을 이용한 표면 근전도 기반 손가락 동작 인식)

  • You, Kyung-Jin;Shin, Hyun-Chool
    • Journal of the Institute of Electronics Engineers of Korea SC
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    • v.46 no.6
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    • pp.38-43
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    • 2009
  • We provide a method to infer finger flexing motions using a 4-channel surface electromyogram (sEMG). Surface EMGs are harmless to the human body and easily acquired. However, they do not reflect the activity of specific nerves or muscles, unlike invasive EMGs. On the other hand, the non-invasive type is difficult to use for discriminating various motions while using only a small number of electrodes. Surface EMG data in this study were obtained from four electrodes placed around the forearm. The motions were the flexion of the thumb, index, middle, ring, and little linger. One subject was trained with these motions and another left was untrained. The maximum likelihood estimation was used to infer the finger motion. Experimental results have showed that this method could be useful for recognizing finger motions. The average accuracy was as high as 95%.

Kinematical Analysis of Side Kick Motion in Taekwon Aerobics (태권에어로빅스 옆차기동작의 운동학적 분석)

  • Yoo, Sil
    • Korean Journal of Applied Biomechanics
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    • v.18 no.3
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    • pp.33-42
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    • 2008
  • The purpose of this study was to analyze kinematic variables during Side kick motion in Taekwon Aerobics. The subjects of this study were the 7 skilled and 7 unskilled female college students. A QTM and an Auto Track were used to acquire raw data. The sampling rates camera was 100 Hz. The parameters were calculated and analyzed with Visual3D and SPSS 12.0. The results were as following; 1. In the elapsed time, there was no significance difference statically between a skilled and unskilled group. 2. In the cases of knee angle, there was significant difference statically at Maximum Knee Flexion2(p=0.046, F=4.925). 3. In the cases of knee angular velocity, there was significant difference statically at Maximum Knee Flexion1(p=0.031, F=5.940). 4. In the flexion/extension of hip angle, there was significant difference statically at Maximum Knee Flexion2(p=0.012, F=8.668). 5. In the abduction/adduction of hip angular velocity, there was significant difference statically at Minimum Knee Flexion (p=0.019, F=7.324). 6. In the external rotation/internal rotation of hip angular velocity, there was significant difference statically Minimum Knee Flexion(p=0.005, F=11.87).