• Title/Summary/Keyword: s/w test

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The Effect of Using Standing Step Condition on Biomechanical Variables during Jab in Boxing (복싱 잽(jab) 동작 시 제자리 스텝의 사용이 운동역학적 변인에 미치는 영향)

  • Lee, Seong-Yeol;Kwon, Moon-Seok
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.2
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    • pp.232-240
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    • 2020

  • The purpose of this study was to analyze the effect of using standing step condition on biomechanical variables during jab in boxing. For this purpose, eight orthodox type college boxers(age = 20.38±0.52 yrs, height = 172.38±5.80 cm, body mass = 63.45±8.56 kg, career = 6.00±1.07 yrs) who without injury to the musculoskeletal system participated in the experiment over the last year. In order to verify the effect of biomechanical variables using standing step during jab in boxing, the paired t-test (α = .05) statistical method was used. First, W.S(with-step) showed a greater impact force than N.S(non-step), and muscle activity was analyzed to be low. Second, it was analyzed that the pelvis and foot segments move faster because W.S affects the velocity of the anterior segment of the human body. Third, the rotational movement of the pelvis was faster in W.S. Fourth, W.S was analyzed to have greater ground reaction force in the anterior caused by the right and left foot than N.S. Through this, it was found that the use of the standing step during jab increases the ground reaction force the velocity and rotational movement of the human segment. Therefore, it was confirmed that it allowed a faster and more agile movement, and thus produces a greater impact force with relatively less muscle activity. Therefore, in order to effectively deliver a greater impact force to the opponent during the jab, it was effectively analyzed to accompany the standing step.

  • https://doi.org/10.12925/jkocs.2020.37.2.232 인용 PDF KSCI

An Implementation of URC Robot S/W Platform (URC 로봇용 임베디드 소프트웨어 플랫폼 구현)

  • Im, Sung-Ho;Lim, Dong-Sun;Kwon, Kee-Koo;Kim, Hyung-Joo;Im, Chang-Gyu
    • Proceedings of the KIEE Conference
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    • 2006.04a
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    • pp.303-305
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    • 2006

  • In this paper, we present an implementation of the URC (Ubiquitous Robotics Companion) robot S/W platform which is based on the Qplus/Esto. We applied this platform to the NETTORO which is made by hanwool robotics for URC exhibition services and test the URC services on it. We expect this platform to be used in variable URC robots as standard S/W platform for improving the compatibility and reusing the developed components.

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A Study on the Optimum Parameter Estimation of Software Reliability (소프트웨어 신뢰도의 적정 파라미터 도출 기법에 관한 연구)

  • Che, Gyu-Shik;Moon, Myong-Ho
    • Journal of Information Technology Applications and Management
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    • v.13 no.4
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    • pp.1-12
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    • 2006

  • Many software reliability growth models(SRGM) have been proposed since the software reliability issue was raised in 1972. The technology to estimate and grow the reliability of developing S/W to target value during testing phase were developed using them. Most of these propositions assumed the S/W debugging testing efforts be constant or even did not consider them. A few papers were presented as the software reliability evaluation considering the testing effort was important afterwards. The testing effort forms which have been presented by this kind of papers were exponential, Rayleigh, Weibull, or logistic functions, and one of these 4 types was used as a testing effort function depending on the S/W developing circumstances. I propose the methology to evaluate the SRGM using least square estimator and maximum likelihood estimator for those 4 functions, and then examine parameters applying actual data adopted from real field test of developing S/W.

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