• 재활치료과학
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• 제7권1호
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• pp.63-77
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• 2018

목적 : 본 연구는 기능적 전기 자극을 병행한 과제 지향적 훈련이 불완전 경수 손상 환자의 손 기능에 미치는 영향을 알아보고자 하였다. 연구방법 : 대상자는 불완전 경수 손상 진단을 받은 성인 3명으로, ABA 설계를 사용하였으며, 연구기간 동안 기초선(A1) 5회기, 중재기(B) 20회기, 재기초선(A2) 5회기로 총 30회기 실시하였다. 중재기(B) 동안 기능적 전기 자극을 병행한 과제 지향적 훈련이 제공되었고, 모든 회기에는 손 기능을 평가하기 위해 상자와 나무토막 검사(Box and Block Test), 떨어지는 막대 잡기(Grip the falling bar)와 먹기 흉내 내기(Simulated feeding)를 측정하였으며, 기초선(A1) 전, 재기초선(A2) 후로 Canadian Occupational Performance Measure(COPM), Jebsen-Taylor Hand Function Test(JTHFT)와 Wolf Motor Function Test(WMFT)를 실시하여 중재 효과를 살펴보았다. 결과 : 모든 대상자는 상자와 나무토막 검사(Box and Block Test), 떨어지는 막대 잡기(Grip the falling bar)와 먹기 흉내 내기(Simulated feeding)를 통해 기초선(A1)보다 중재기(B)에서 우세 손 기능이 향상되었고, 재기초선(A2)에서 그 효과가 유지되었다. 재기초선(A2) 후 COPM, JTHFT와 WMFT의 결과, 우세 손 기능의 향상과 과제 수행도와 만족도의 향상을 보였다. 결론 : 기능적 전기 자극을 병행한 과제 지향적 훈련은 경수 손상 환자의 손 기능뿐만 아니라, 대상자가 선택한 훈련 과제의 과제 수행도와 만족도 향상에 효과적이다.

• Communications for Statistical Applications and Methods
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• 제26권6호
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• pp.623-633
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• 2019

This paper proposes two distance measures between two cumulative hazard functions that can be obtained by comparing their difference and ratio, respectively. Then we estimate the measures and present goodness of t test statistics. Since the proposed test statistics are expressed in terms of the cumulative hazard functions, we can easily give more weights on earlier (or later) departures in cumulative hazards if we like to place an emphasis on earlier (or later) departures. We also show that these test statistics present comparable performances with other well-known test statistics based on the empirical distribution function for an exponential null distribution. The proposed test statistic is an omnibus test which is applicable to other lots of distributions than an exponential distribution.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(II)
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• pp.943-946
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• 1987

This paper describes the test techniques that are used for the implementation test of signalling link function in the signalling system No.7 recommended by 0703 in CCITT red book. The test scenarios are produced by means of the state transition diagrams which are based on the specification of CCITT recommendation 0703. This test scenarios consist of five independent tasks written in MC68000 assembly language and are scheduled to be executed in multitasking kernel. This test scenarios can also be used to test signalling link function implemented in the different environment.

• 전기전자학회논문지
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• 제19권3호
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• pp.431-439
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• 2015

최근 무기체계에서 소프트웨어가 담당하는 기능이 많아지고, 복잡해지면서 소프트웨어의 품질의 중요성에 대해서 대두가 되고 있다. 소프트웨어의 품질요소는 기능성, 사용성, 유지보수성, 신뢰성이 있으며, 이중 최근 들어 중요시되는 항목이 신뢰성 분야이다. 신뢰성 시험은 분석을 통한 정적 시험과 수행을 통한 동적 시험방법이 있으며, 실수행을 통해 검증하는 동적시험은 정적시험에 비해 많은 기간이 필요하며 복잡성이 높아질 경우 더욱 증가되는 경향을 보인다. 본 논문에서는 다기능 레이더 소프트웨어 개발시 수행한 신뢰성시험 절차 및 결과를 기술하고 이를 통해 효과적으로 시험기간을 줄일 수 있는 신뢰성시험 방법을 제안한다.

• 대한통합의학회지
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• 제5권1호
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• pp.85-92
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• 2017

Purpose : The purpose of this study was to investigate the effect of posture difference on respiratory function in cerebral palsy patients. Methods : Twenty-two cerebral palsy childrens were recruited this study. Respiratory Function test was measured with Cardio Touch 3000 and Micro Respiratory Pressure Meter. Cardio Touch 3000 was used to assess cerebral palsy childrens' forced vital capacity and forced expiratory volume at one second. Micro Respiratory Pressure Meter was to assess Maximum inspiratory pressure and Maximum expiratory pressure. Subjects had four respiratory functions measured in supine, slouched sitting, and elected sitting postures. Statistical analysis was used Paired t-test for within-group comparisons and Independent t-test for between-group comparisons. SPSS statistics Ver 20.0 was used for statistical anlysis and statistical significance was defined as a p-value less than 0.05. Result : The subjects' respiratory function according to posture showed significant difference in Forced Vital Capacity(FVC), Maximum Expiratory Pressure(MEP) and Maximum inspiratory pressure(MIP)(p<.05). Elected sitting posture had a positive effect on respiratory function than slouched sitting, supine. Conclusion : In conclusion, We could see that change of posture in children with cerebral palsy affects respiratory function and Elected sitting can be a positive help for the respiratory function of children with cerebral palsy.

• 한국전산유체공학회지
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• 제15권3호
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• pp.32-38
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• 2010

Aerodynamic design of the vane type multi-function probe was tried by using CFD and wind tunnel test for the MALE UAV and small business jets. The present multi-function probe can measure total pressure, static pressure and angle of attack by using rotating vane. Therefore, major performances are determined by aerodynamic characteristics of vane. In order to design the sensor compatible to the requirement, aerodynamic characteristics of sensors were investigated by using CFD and dynamic response analysis was also performed for transient performance. The final aerodynamic performance was measured by the wind tunnel test at Aerosonic and the results were compared with the present design. The results showed that the aerodynamic design using the CFD can be successfully used for the design of vane type multi-function air data sensor.

• 자동차안전학회지
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• 제7권4호
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• pp.16-19
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• 2015

FMVSS226 Ejection Mitigation Impact Test is usually performed by real vehicle. But it is necessary to perform the test using by Reinforced B.I.W. with considering vehicle developing timing and roof rail airbag (RRAB) supplier capacity. We sometimes need tendency (quick data) instead of slow accurate data to fix RRAB design as proper timing. Test with Reinforced B.I.W. is helpful saving time and cost. But it should be confirmed how much different between vehicle conditioned test result and Reinforced B.I.W. conditioned test result. There are some points to be improved even in the test with vehicle. Understanding of deviation of Reinforced B.I.W. conditioned test result from vehicle conditioned test result is needed to get benefits with using Reinforced B.I.W. conditioned in the test.

• The Journal of Korean Physical Therapy
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• 제21권2호
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• pp.1-8
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• 2009

Purpose: This study examined the effect of EMG-stim related to the functional recovery of the upper extremity in chronic stroke patients with an intensive massed practice protocol. Methods: The subjects were assigned randomly to either the EMG-stim group (n=10) or sham treatment group (n=10). Both groups received conventional physical therapy, occupational therapy and FES, five times per week over a four week period. In the EMG-stim group, EMG-stim was applied to the hemiplegic wrist and finger extensors for 2 sessions for 30 minutes per day, 5 times per week over a 4 week period. As the pre- and the post-test, the following four motor tests were assessed as the function of the upper extremity clinical functional test: extensor digitorum strength test, Box and Block test, Fugl-Mayer Assessment, and Jebson-Taylor Hand Function Test. Results: In the Box and Block test and Fugl-Mayer Assessment, there were statistically significant differences between both groups as well as between pre- and post-test. The extensor digitorum and wrist extensor strength were similar in both groups. In the Jebson-Taylor Hand Function Test, there was a significant difference in simulated page turning but not in the other subtests. Conclusion: Intensive massed practice with EMG-stim intervention applied to the hemiplegic upper extremity is an effective therapeutic method for chronic stroke patients. However, a variety of intervention methods designed for stroke patients in clinical settings are needed.

• 한국콘텐츠학회논문지
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• 제9권9호
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• pp.287-294
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• 2009

연구를 통하여 뇌졸중 환자에서 알렌인지수준과 인지기능, 일상생활활동 및 상지기능과의 상관관계를 분석하고자 하였다. 연구 대상자는 뇌졸중 환자 38명으로 인지기능은 알렌인지주순검사(Allen Cognitive Level Test) 와 한국형 간이 정신상태검사(Mini-Mental Screening Exam-Korea)로, 일상생활활동은 기능적독립성측정(Functional Independence Measure)로, 뇌졸중 상기 기능은 뇌졸중 상지기능검사(Manual Function Test)로 검사하였다. 피어슨 상관관계 분석을 이용하여 상관관계를 분석하였다. 알렌인지수준과 한국형 간이정신상태검사, 기능적독립측정, 뇌졸중 상기기능검사 간에 상관관계가 유의하였다(p<.05). 본 연구에서는 알렌인지수준 검사와 일상생활활동과의 상관성 및 인지평가도구로서의 유용성을 제시하였고 편마비 환자 적용에 있어 문제의 가능성과 이에 따른 연구 필요성을 제기하였다.

• 한국시뮬레이션학회논문지
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• 제1권1호
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• pp.77-86
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• 1992

In this paper, we study validation test methods of DEVSA(Descrete Event system Specification) models using SPN(Stochastic Petri Net) models. We discuss conventional validation test methods, by which DEVS models can be transformed to SPN models, by reviewing the features of DEVS model. Based on the model transformation method, we define a new homogeneous function for validation test and suggest a new validation test method of DEVS models using the property of SPN models and the new homogeneous function.