• Title/Summary/Keyword: functional test

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Testability of Current Testing for Open Faults Undetected by Functional Testing in TTL Combinational Circuits

  • Tsukimoto, Isao;Hashizume, Masaki;Mushiaki, Yukiko;Yotsuyanagi, Hiroyuki;Tamesada, Takeomi
    • Proceedings of the IEEK Conference
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    • 2002.07c
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    • pp.1972-1975
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    • 2002
  • A new test approach based on a supply current test method is proposed for testing open faults in bipolar logic circuits. In the approach, only the open faults are detected by the supply current test method, which are difficult to be detected by functional test methods. The effectiveness of the approach is examined experimentally on open fault detection in TTL combinational circuits. The results shows that higher fault coverage can be established by applying a small number of test input vectors of the supply current test method after test vectors of functional test methods based on stuck-at models.

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Development of a Test Framework for Functional and Non-functional Verification of Distributed Systems (분산 시스템의 기능 및 비기능 검증을 위한 테스트 프레임워크 개발)

  • Yun, Sangpil;Seo, Yongjin;Min, Bup-Ki;Kim, Hyeon Soo
    • Journal of Internet Computing and Services
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    • v.15 no.5
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    • pp.107-121
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    • 2014
  • Distributed systems are collection of physically distributed computers linked by a network. General use of wired/wireless Internet enables users to make use of distributed service anytime and anywhere. The explosive growth of distributed services strongly requires functional verification of services as well as verification of non-functional elements such as service quality. In order to verify distributed services it is necessary to build a test environment for distributed systems. Because, however, distributed systems are composed of physically distributed nodes, efforts to construct a test environment are required more than those in a test environment for a monolithic system. In this paper we propose a test framework to verify functional and non-functional features of distributed systems. The suggested framework automatically generates test cases through the message sequence charts, and includes a test driver composed of the virtual nodes which can simulate the physically distributed nodes. The test result can be checked easily through the various graphs and the graphical user interface (GUI). The test framework can reduce testing efforts for a distributed system and can enhance the reliability of the system.

A Study on the Evaluation for the Improvement of the Functional Movement of Women′s Wear -with Concentration on the Measurement of Functional Movement according to the Change of Cap Height- (여성복의 기능성 향상을 위한 착의 평가에 관한 연구 -소매산 높이 변화에 따른 기능성 측정을 중심으로-)

  • 박선경
    • The Research Journal of the Costume Culture
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    • v.12 no.2
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    • pp.249-261
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    • 2004
  • This research proves the ROM method (Range Of Motion), which has already been used in other countries, that measures the capacity of exercise and the adaptation of movement of functional garments for special purpose due to change of the height of basic sleeve sloper. Basically, the ultimate goal of the research is to improve the functional pattern design. Firstly, this research proves the proper application of ROM that is used for the evaluation of fitting test. Therefore, according to this research, the company is able to produce the sample that is appropriate to the various purpose for women garments and betters the evaluation of function of garments. Moreover, it suggests that the evaluation of fitting test satisfies the consumers who desire to try better garments and contributes to the competitions among the companies that bring more improvements to the fashion design.

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Quad-functional Built-in Test Circuit for DRAM-frame-memory Embedded SOG-LCD

  • Takatori, Kenichi;Haga, Hiroshi;Nonaka, Yoshihiro;Asada, Hideki
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.914-917
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    • 2008
  • A quad-functional built-in test circuit has been developed for DRAM-frame-memory embedded SOG-LCDs. The quad function consists of memory test, display test, serial transfer test, and parallel transfer test which is the normal operation mode for our SOG-LCD. Results of memory and display tests are shown.

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Efficient Path Delay Testing Using Scan Justification

  • Huh, Kyung-Hoi;Kang, Yong-Seok;Kang, Sung-Ho
    • ETRI Journal
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    • v.25 no.3
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    • pp.187-194
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    • 2003
  • Delay testing has become an area of focus in the field of digital circuits as the speed and density of circuits have greatly improved. This paper proposes a new scan flip-flop and test algorithm to overcome some of the problems in delay testing. In the proposed test algorithm, the second test pattern is generated by scan justification, and the first test pattern is processed by functional justification. In the conventional functional justification, it is hard to generate the proper second test pattern because it uses a combinational circuit for the pattern. The proposed scan justification has the advantage of easily generating the second test pattern by direct justification from the scan. To implement our scheme, we devised a new scan in which the slave latch is bypassed by an additional latch to allow the slave to hold its state while a new pattern is scanned in. Experimental results on ISCAS'89 benchmark circuits show that the number of testable paths can be increased by about 45 % over the conventional functional justification.

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Application of functional ANOVA and functional MANOVA (단변량 및 다변량 함수 데이터에 대한 분산분석의 활용)

  • Kim, Mijeong
    • The Korean Journal of Applied Statistics
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    • v.35 no.5
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    • pp.579-591
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    • 2022
  • Functional data is collected in various fields. It is often necessary to test whether there are differences among groups of functional data. In this case, it is not appropriate to explain using the point-wise ANOVA method, and we should present not the point-wise result but the integrated result. Various studies on functional data analysis of variance have been proposed, and recently implemented those methods in the package fdANOVA of R. In this paper, I first explain ANOVA and multivariate ANOVA, then I will introduce various methods of analysis of variance for univariate and multivariate functional data recently proposed. I also describe how to use the R package fdANOVA. This package is used to test equality of weekly temperatures in Seoul and Busan through univariate functional data ANOVA, and to test equality of multivariate functional data corresponding to handwritten images using multivariate function data ANOVA.

The Inter- and Intra-rater Reliability of the Functional Reach Test in Subjects With Spinal Cord Injury (척수손상환자의 Functional Reach Test의 신뢰도)

  • Kim, Young-Rok;Min, Won-Kyu
    • Physical Therapy Korea
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    • v.6 no.3
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    • pp.51-58
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    • 1999
  • In general, sitting balance is decreased in subjects with spinal cord injury. The purpose of this study was to evaluate the inter- and intra-rater reliability of the Functional Reach Test (FRT) which is used to measure sitting balance. The subjects of this study were 26 persons with spinal cord injury, and they were divided into three groups according to their injury level. Group I, II and III consisted of the following $C_5{\sim}C_8$ quadriplegics, $T_1{\sim}T_4$, and $T_9{\sim}T_12$ paraplegics, respectively. Subjects sat on a mat table that was set at an 80 degree inclination. During three sessions, the length subjects could reach in the FRT test was measured by three physical therapists, and compared to each other. The results showed that intraclass correlation coefficients (2,1) were above 0.97 and inter-rater difference was not statistically significant. The one-way ANOVA demonstrated that reach differed between groups with lower thoracic lesion and the other test groups. In conclusion, we think modified FRT is useful and reliable method to measure the sitting balance in subjects with spinal cord injury.

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The Effects of Task-Oriented Functional Training on Standing Balance in Stroke Patients (과제 지향적 기능 훈련이 뇌졸중 환자의 균형에 미치는 영향)

  • Kim Jae-wook;Kim Soo-min;Park Rae-joon
    • The Journal of Korean Physical Therapy
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    • v.15 no.4
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    • pp.65-81
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    • 2003
  • The purpose of this study was to investigate the balance of stroke patient appling Task-Oriented Functional training program. Sixteen subjects were recruited from KeiMyung university Dongsan Medical Center inpatient satisfying requirement for this study. They were divided into Task-Oriented Functional training group and Conventional therapy group. They were measured by Sensory organization test and Motor control test items using EquiTest Version 8.0 machine before and after the test. The result of this study were to follow: 1. In Sensory organization test, there were no significant differences in static eguibrium score in both groups(p<.05). 2. In Sensory organization test, there were significant differences in dynamic eguibrium score in both groups(p<.05). 3. In Motor control test, there were significant differences in both groups(p<.05). 4. In exercise group, there were no significant differences in static Sensory organization test(p<.05). 5. In exercise group, there were significant differences in dynamic Sensory organization test(p<.05). 6. In exercise group, there were significant differences in Motor control test(p<.05). 7. In control group, there were no significant differences in static Sensory organization test(p<.05). 8. In control group, there were no significant differences in dynamic Sensory organization test(p<.05). 9. In control group, there were no significant differences in Motor control test(p<.05).

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Concurrent Validity of the Functional Gait Assessment, Berg Balance Scale, and Timed Up and Go Test in Patients With Stroke (뇌졸중 환자에 대한 기능적 보행평가, 버그 균형척도, 일어나 걸어가기 검사의 동시 타당도)

  • Won, Jong-Im;Kim, Ki-Song
    • Physical Therapy Korea
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    • v.18 no.2
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    • pp.43-51
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    • 2011
  • Balance is a complex motor skill that depends on interactions between multiple sensorimotor processes and environmental and functional contexts. Many rehabilitation specialists believe that balance assessment under multitask conditions may be a more sensitive indicator of balance problems and falls than balance assessment in a single-task context. Functional Gait Assessment has many tasks that allow for testing under multitask conditions. The purpose of this study was to determine the concurrent validity between the Functional Gait Assessment (FGA), Berg Balance Scale (BBS), and Timed "Up & Go" Test (TUG) in patients with stroke. One hundred and five participants with at least 3 months post stroke and able to walk at least 6 m with or without a mono cane, participated in this study. Concurrent validity between the FGA, BBS, and TUG was assessed using Spearman rank order correlation. The FGA correlated with the BBS (r=.80, p<.01) and TUG (r=-.77, p<.01). The good and moderate correlation between the FGA, BBS, and TUG establishes the concurrent validity of the FGA in patients with stroke. These measures provide clinicians with valuable information about patients' functional balance capabilities.

An Explanatory Model on Functional Capacity in Patients with Chronic Obstructive Pulmonary Disease (만성 폐쇄성 폐질환 환자의 기능적 용량 설명모형)

  • Bang, So-Youn
    • Korean Journal of Adult Nursing
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    • v.20 no.4
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    • pp.652-663
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    • 2008
  • Purpose: This study was conducted to develop and test an explanatory model on functional capacity in patients with chronic obstructive pulmonary disease using path analysis. Methods: Data were collected from 149 chronic obstructive pulmonary disease patients using 6-minute walk test, measurement of oxygen saturation, pulmonary function test, and self-reported questionnaires from June to October, 2005. The collected data were analyzed using SPSS/WIN 12.0 program and AMOS/WIN 4.0 program. Results: The overall fitness indices of modified model were good($x^2$ = 14.324, p = .281 GFI = .981, RMSEA = .006, AGFI = .944, NFI = .927, NNFI = .999, CFI = .999, PNFI = .613, $x^2$/df = 1.194). Functional capacity was influenced directly by age(${\beta}$ = -.304, p = .000), dyspnea(${\beta}$ = -.278, p = .000), self-efficacy(${\beta}$ = .240, p = .000), social support(${\beta}$ = .175, p = .004), pulmonary function(${\beta}$ = .169, p = .008), and oxygen saturation(${\beta}$ = .099, p = .048). These variables explained 39.3% in functional capacity. Conclusion: The findings of this study suggest that comprehensive nursing interventions should focus on decreasing dyspnea and increasing self-efficacy, social support, and oxygen saturation. In this perspective, pulmonary rehabilitation would be an effective strategy for improving functional capacity in patients with chronic obstructive pulmonary disease.

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