• Nuclear Engineering and Technology
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• 제38권5호
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• pp.411-416
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• 2006

The Advanced Test Reactor (ATR), at the Idaho National Laboratory (INL), is one of the world's premier test reactors for providing the capability for studying the effects of intense neutron and gamma radiation on reactor materials and fuels. The physical configuration of the ATR, a 4-leaf clover shape, allows the reactor to be operated at different power levels in the comer 'lobes' to allow for different testing conditions for multiple simultaneous experiments. The combination of high flux (maximum thermal neutron fluxes of 1E15 neutrons per square centimeter per second and maximum fast [E>1.0 MeV] neutron fluxes of 5E14 neutrons per square centimeter per second) and large test volumes (up to 122 cm long and 12.7 cm diameter) provide unique testing opportunities. The current experiments in the ATR are for a variety of test sponsors - US government, foreign governments, private researchers, and commercial companies needing neutron irradiation services. There are three basic types of test configurations in the ATR. The simplest configuration is the sealed static capsule, which places the capsule in direct contact with the primary coolant. The next level of experiment complexity is an instrumented lead experiment, which allows for active control of experiment conditions during the irradiation. The most complex experiment is the pressurized water loop, in which the test sample can be subjected to the exact environment of a pressurized water reactor. For future research, some ATR modifications and enhancements are currently planned. This paper provides more details on some of the ATR capabilities, key design features, experiments, and future plans.

• 한국안전학회지
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• 제23권1호
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• pp.1-11
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• 2008

In this study, small punch test and tensile test were performed with specimens directly machined from an ASTM A53 grade B carbon steel pipe at which an explosion accident was occurred in the Heavy Oil Unit. Main damage mechanism of the pipe was known as a high temperature hydrogen attack(HTHA). Effects of HTHA on the mechanical strength change of the A53B steel were studied in detail. Small punch test results have showed that maximum reaction forces, SP energy and ductility were decreased at hydrogen attacked part of the pipe compared with sound part of the pipe. Yield strength and tensile ultimate strength were calculated with the obtained small punch test curve results using different methods and compared the estimation methods. Small punch test simulation has been also performed with the finite element method and then mechanical strength, equivalent strain and fracture toughness were calculated with the obtained numerical analysis results. It was shown that the fracture toughness data calculated from small punch equivalent energy obtained by the finite element analysis for SP test was very low at the hydrogen attacked part.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제4권1호
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• pp.19-30
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• 2015

스마트 TV 제조사들은 스마트 TV 테스트 비용을 줄이기 위하여 테스트 스크립트 자동 실행 환경을 구축하고 있다. 그러나 기존의 테스트 방법은 테스트 스크립트가 테스터에 의해 수동으로 작성되기 때문에, 테스트 스크립트의 재사용성은 높지 않다. 이는 새로운 TV 모델을 위한 테스트 스크립트가 새롭게 작성되어야 함을 의미한다. 본 논문에서는 재사용성이 높은 스마트 TV 테스트 모델 작성법을 제안하고 이를 이용한 스마트 TV 테스트 스크립트 생성 방법을 소개한다. 그리고 NetCast TV에 모델 기반 테스트 스크립트 생성 방법을 적용하여 유효성을 확인하였다.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2008년도 한국우주과학회보 제17권2호
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• pp.28.4-29
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• 2008

The aim of the test is to provide an experimental basis to validate the prediction of the FEM for high frequency jitter analysis due to reaction wheel. The principle is to measure structural transfer functions between the input disturbances at RWA base plate and the accelerations near the end tips of payload, in a configuration close to the operational model. The spacecraft shall have to be suspended, in order to be representative of on-orbit boundary conditions. The results of the test shall be compared to the output of the FEM analysis, and if needed, local upgrades of the FEM and/or margin policy shall be defined in order to guarantee a good test/FEM consistency. Test results were compared with the transfer functions of the FEM, which is globally tuned based on the results of vibration test and consequently have lower damping coefficients values than 1% in the frequency range of 60~200Hz. The damping coefficients estimated from the figures of FRF test results are different from the theoretical FEM, but the magnitude trend of FRF of the test results is somewhat similar with the analytical, it is expected that the overall jitter effect of final estimation is nearly same with the preliminary analysis result in which the damping coefficients were assumed to be 1% for all modes in FEM.

• 한국군사과학기술학회지
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• 제15권1호
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• pp.28-35
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• 2012

We propose the live fire test process model based on systems engineering which consists of 4 phases i.e., review, setup, conduct and result. We also suggest the 4 phases acquisition model consisting of planning, execution, evaluation and disposal for test infrastructure. CMMI, TMMi and PMBOK are referred and hierarchial analysis method are adopted in developing the models. Thus, the detailed sub-processes are designed after defining higher level processes first. The higher level processes are defined by extracting common areas of all the test types. The low level processes for each specific test are designed by tailoring the higher level processes. By applying the proposed test process models into collaboration tool and information system, effective and systematic test processes for weapon systems are established.

• 지역사회간호학회지
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• 제19권4호
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• pp.696-703
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• 2008

Purpose: To Perform a randomized comparative study investigating the effects of Pelvic Floor Muscle Exercise(PME) and Magnetic Stimulation Therapy(MST) and to identified the problems in each of PME & MST Method: Forty-nine patients with mild stress incontinence were randomly assigned to either of two treatment groups (24 patients in the PME group and 25 in the MST group). The PME group had a video exercising program for 40 times every day during 6 weeks. The MST group was treated with BioCon-2000TM, 2times/ week for six weeks. Pre-test and post-test were performed by Prineometer, 1-hour pad test. and Jackson's BFLUTS questionnaire of Jackson. Collected data were analysed using SAS 9.1 by frequency, Kolmogorov-Smirnov Z. Chi Square-test, t-test, Fisher Exact probability test, Paired t-test, and Wilcoxon's rank sum test. Results: In comparison between before and after PME and MST, statistically significant difference was observed in maximal vaginal pressure, duration of vaginal contraction, amount of urine, and symptom of urination. In the comparison of the effectiveness between PME & MST, only the maximal of vaginal pressure (Z=2.58, p= .010) was significantly different. Conclusion: The factor more effective in the MST group than in the PME group was high compliance.

• 한국보건간호학회지
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• 제31권1호
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• pp.135-148
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• 2017

Purpose: This study was conducted to predict the effects of behavioral intention on pap screening tests in unmarried college women using a path model. Methods: The study subjects were 216 university students and data were collected through self-report questionnaires including knowledge, attitude, subjective norms, perceived behavioral control, behavioral intentions to take the Pap test, and health responsibility. Results: Knowledge regarding the Pap test was moderate. The factors of knowledge, attitude, and perceived behavioral control negatively influenced the behavioral intention of the Pap test. However, the factors of subjective norms and health responsibility positively influenced behavioral intention. Conclusion: Subjective norms are the most importance factor to increase the intentions of the Pap test among unmarried college women. It is also necessary to eliminate barriers to undergoing pap testing, as well as to provide nursing intervention to obtain correct knowledge and a positive attitude regarding the Pap screening test.

• 한국전문물리치료학회지
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• 제19권1호
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• pp.86-93
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• 2012

The purpose of this study was to assess the feasibility of task-oriented arm training for chronic hemiparetic stroke patients. The experimental design in this study was the pre-test and post-test with control group for 4-week intervention. Thirty patients with chronic hemiparetic stroke were recruited from 2 rehabilitation units. The subjects were divided randomly into experimental and control groups. The experimental group conducted task-oriented approach, involving 3 subparts of upper extremity activities, and the control group involved in the general upper extremity exercises. Functional movements of the upper extremities were assessed using clinical measures, including the Fugl-Meyer Assessment-Upper Extremity Section, Box and Block Test, and Action Research Arm Test. The score of Fugl-Meyer Assessment showed greater increases in the experimental group than in the control group after training. The improvement in Box and Block Test between pre-test and post-test measurements was significantly greater after task-oriented arm training compared to general upper extremity exercises. Action Research Arm Test scores also improved after task-oriented arm training compared to exercises in the control group. The task-oriented arm training improves the gross and fine motor activities and encouraging the use of the paretic arm through activity dependent intervention expedites the recovery of functional activities in the upper extremities for chronic hemiparetic stroke.

• The Journal of Korean Physical Therapy
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• 제22권4호
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• pp.1-6
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• 2010

Purpose: This study was designed to evaluate the clinical utility of the Four square step test (FSST) for predicting falls in stroke patients, to compare the ability of the FSST test to discriminate between subgroups of fallers, and to determine if the test has any predictive value in identifying stroke patients who will fall. Methods: Stroke patients (N=37) who could walk at least 50 m with minimal assistance were recruited consecutively when attending a physical therapy session during their rehabilitation. Dynamic standing balance was measured using the FSST. The main outcome measures were FSST time and fall number. Numbers of falls were compared with FSST scores. Differences between the groups in FSST scores were examined using a t-test and 1-way analysis of variance. Post hoc analysis using the Tukey B procedure was used to identify specific group differences. Alpha was set at 0.05. Results: A total of 15 participants (40.5%) reported falls 6 had recurrent falls (2 falls) and 9 fell once. The mean FSST time differed significantly between groups with zero and multiple falls. A cutoff score of greater than 17 seconds on the FSST was associated with a sensitivity of 83% and a specificity of 84% for the identification of subjects with multiple risk factors for falls. Conclusion: The FSST is a feasible and valid clinical test of dynamic standing balance and can predict falls in post-stroke patients.

• Spatial Information Research
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• 제18권1호
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• pp.1-10
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• 2010

최근 많은 R&D 사업에서는 연구개발 완료 후, 연구 성과물들을 검증하기 위한 테스트베드사업이 다양하게 추진되고 있으나 일관적이고 체계성 있는 기준이 설정되어 있지 않은 실정이다. 따라서 본 연구에서는 체계적인 U-City 테스트베드 구축을 위해 기본계획의 기준을 도출하고, 도출된 기준에 근거하여 청라지역을 사례로 U-Eco City 테스트베드 기본계획(안)을 수립하여 검증하고자 한다. 이와 같이 설정된 U-City 테스트베드 기본계획 기준을 통해 테스트베드 특성에 맞는 체계화되고 합리적인 테스트베드 구축이 진행될 수 있을 것이다.