• Title/Summary/Keyword: Testing position

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A Study on RUP based Component Quality Evaluation (RUP기반 컴포넌트 품질 평가에 관한 연구)

  • O, Gi-Seong;Ryu, Seong-Yeol
    • The KIPS Transactions:PartD
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    • v.9D no.1
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    • pp.103-110
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    • 2002
  • In component-Based Software Development, the quality of indivisual component is play an important role in quality decision of the whole software. So we need the practical strategy for component testing. In general, component testing can divide focus into producer position and consumer position. In this paper, because the consumer position uses output of the producer position, testing domain is deployed in the producer position. We propose RUP based five step testing processes for component quality evaluation and implements a case study of EJB environment for appling our testing process. This paper shows that proposed five step processes are applicable to component quality evaluation.

The Effect on Grip Strength with Testing Posture and Flexion Degree of Elbow (검사자세와 주관절 굴곡정도가 파악력에 미치는 영향)

  • Kim Tae-Sook;Park Youn-Ki;Park Young-Han;Bae Sung-Soo
    • The Journal of Korean Physical Therapy
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    • v.7 no.1
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    • pp.43-49
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    • 1995
  • The purpose of this study were to determine the effect of testing posture and elbow position on grip strength. Two hundred college students 100 males and 100 females aged 18 to 28 years, participated in the study. A Grip-Strength Dynamometer was used to measure the grip strength in two testing posture(sitting and standin) and four elbow position$(0^{\circ},\;45^{\circ},\;90^{\circ}\;and\;135^{\circ}\;flexion)$ correlations and t-test was used to determine any significant difference in grip strength between the testing posture and the elbow position. The results were as follows : 1. The grip strength was affected by testing pasture and flexion degree of elbow. 2. The grip strength was stronger in the standing than sitting in subjects 3. The grip strength decreased according to elbow flexion increase in subjects. 4. The higher grip strength gained in the standing with the elbow 0 flexion. 5. The grip strength by elbow flexion degree showed significant difference at sitting and standing posture. The grip strength was significant differenced by testing position at same elbow flexion degree.

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Level Calibration of Ultrasonic Nondestructive Testing Considering Flaw Position (불연속부의 위치를 고려한 초음파비파괴검사 등급보정)

  • Shin, Byoung-Chul;Song, Ho-San;Jeong, Hwa-Young
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.5 no.4
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    • pp.155-160
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    • 2001
  • KS-code(KS B 0896) for nondestructive ultrasonic testing classifies the quality level by relative flaw size only. But flaw position is more important than the flaw size. Test blocks having artificial holes near surface show lower yield load than the blocks having deeply located holes from the surface. So, level calibration table was proposed for classifying the quality level of welded steel structures.

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Investigation of receiving position in the measurement method for floor impact sound in a testing building (표준시험동 바닥충격음 측정위치에 대한 고찰)

  • Lee, Sin-Young;Yoo, Seung-Yup;Jeon, Jin-Yong
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.05a
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    • pp.964-968
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    • 2007
  • The measurement of floor impact sound have been standardized in KS 2810-1 and 2. The height of receiving microphones position is specified in the standard as 1.2m which is almost half height of apartment rooms as a listening position. In this study, receiving positions are investigated by measuring the distribution of sound pressure levels at 792 receiving microphone positions in the standard testing building. Standard impact sources, tapping machine and impact ball, are driven on the center position in the source room where is located at the above floor. It was found that the distribution of sound pressure levels in the receiving room indicates significant deviation at different frequencies there is more than 5dB drop at 63Hz but 2dB rise at 125Hz at a height of 1.2m when the impact ball is driven, in the other case of a generating tapping machine there is more than 2dB rise at 125Hz at a height of 1.2m due to room modes.

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Study on the Phases and Testing Standard of Standing to Squatting Position (쭈그려 앉기의 단계화와 표준화된 검사에 대한 연구)

  • Chung, Hyung-Kuk
    • The Journal of Korean Physical Therapy
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    • v.19 no.6
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    • pp.11-15
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    • 2007
  • Purpose: This study examined the various patterns of standing to squatting activities, and reports the testing standard and phases for examining the standing to squatting position. Methods: One thousand, normal college students (500 males, 500 females) volunteered for this study. The patterns are performed by naked eye analysis with two video cameras. Results: The patterns from the standing to squatting position are as follows 1. parallel with the heel on the pattern: 2. parallel with the heel off the pattern: 3. closed with the heel on the pattern: 4. closed with the heel on the pattern: 5. open with the heel on the patternand 6. open with the heel on the pattern. Conclusion: The phases of the standing to squatting position are as follows: phase I from standing to the anterior parts of the knees reaching the anterior limit of the BOS, phase II from phase I until the height of the hip and knee joints are the same, phase III from phase II until there was no full squatting and the heels broke contact with the floor and phase IV from phase III full squatting on the heels in contact with the floor.

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Impact Localization for a Composite Plate Using the Spatial Focusing Properties of Advanced Signal Processing Techniques

  • Jeong, Hyunjo;Cho, Sungjong
    • Journal of the Korean Society for Nondestructive Testing
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    • v.32 no.6
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    • pp.703-710
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    • 2012
  • A structural health monitoring technique for locating impact position in a composite plate is presented in this paper. The method employs a single sensor and spatial focusing properties of time reversal(TR) and inverse filtering(IF). We first examine the spatial focusing efficiency of both approaches at the impact position and its surroundings through impact experiments. The imaging results of impact localization show that the impact location can be accurately estimated in any position of the plate. Compared to existing techniques for locating impact or acoustic emission source, the proposed method has the benefits of using a single sensor and not requiring knowledge of anisotropic material properties and geometry of structures. Furthermore, it does not depend on a particular mode of dispersive Lamb waves that is frequently used in other ultrasonic testing of plate-like structures.

A Case Study on Position Descriptions for the Testing Department at CESC Limited

  • Kumari, Neeraj
    • Asian Journal of Business Environment
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    • v.4 no.4
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    • pp.19-26
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    • 2014
  • Purpose - The study is primarily aimed at framing "Position Descriptions" for some key positions in the executive cadre of the testing department of CESC Limited. Research design, data, and methodology - The questionnaire, interview, and observation methods have been used for the purpose of data collection. The position descriptions are validated by superiors belonging to the respective departments. Results - It has been found that there is overlapping of job duties and job responsibilities in the department. This overlapping is quite alarming for the organization and may even become a hurdle in the path of its progress. It can be seen as a classic case of de-layering. Conclusions - The study concludes that good communication along with interpersonal and negotiation skills are absolutely essential to facilitate the performance of the day-to-day duties of a job, including handling the union, solving IR related issues, development of the subordinates, job setting, distribution and allocation, etc. Position descriptions will help in the alignment of the employee direction, and can be a useful tool to aid the communication between management and employees.

Position Control Technique of Ultrasonic Scanner for an Automated Ultrasonic Testing Using Surface Wave (표면파를 이용한 자동 초음파탐상검사 주사장치의 위치제어 기술)

  • Lee, Jong-Po;Park, Chul-Hoon;Um, Byong-Guk
    • Journal of the Korean Society for Nondestructive Testing
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    • v.23 no.1
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    • pp.30-37
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    • 2003
  • In order to replace the manual ultrasonic testing(UT) with an automated UT(AUT), a scanner which enables us to control the positions of a transducer is essential. Encoders have been commonly used to obtain the position information from the conventional scanners controlled by motor. Encoders have various advantages in many aspects. However, if the slip of motor wheel occurs during scanning, various errors are involved in the position accuracy. Thus, the position information of encoders becomes meaningless in case of slip. The reliability of AUT results nay become serious problem. Hence, slip must be avoided, but it can not be completely avoided at present time. In this paper, a new idea that surface wave is used to solve this problem and replace encoders has been proposed. It is shown that this idea can be employed in AUT scanner without encoders. That is, one transducer transmitting surface wave is fixed and the other transducer attached to the scanner receives UT signal. Then, computer calculates the present position of scanner based on the information given by surface wave. Thus, the movement of a scanner can be controlled by the amount of input based on the information obtained.

The Failure Mode and Effects Analysis Implementation for Laser Marking Process Improvement: A Case Study

  • Deng, Wei-Jaw;Chiu, Chung-Ching;Tsai, Chih-Hung
    • International Journal of Quality Innovation
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    • v.8 no.1
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    • pp.137-153
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    • 2007
  • Failure mode and effects analysis (FMEA) is a preventive technique in reliability management field. The successful implementation of FMEA technique can avoid or reduce the probability of system failure and achieve good product quality. The FMEA technique had applied in vest scopes which include aerospace, automatic, electronic, mechanic and service industry. The marking process is one of the back ends testing process that is the final process in semiconductor process. The marking process failure can cause bad final product quality and return although is not a primary process. So, how to improve the quality of marking process is one of important production job for semiconductor testing factory. This research firstly implements FMEA technique in laser marking process improvement on semiconductor testing factory and finds out which subsystem has priority failure risk. Secondly, a CCD position solution for priority failure risk subsystem is provided and evaluated. According analysis result, FMEA and CCD position implementation solution for laser marking process improvement can increase yield rate and reduce production cost. Implementation method of this research can provide semiconductor testing factory for reference in laser marking process improvement.

Ultrasonic Simulation for Test Condition Estimate (탐상조건 예측을 위한 초음파 시뮬레이션)

  • Huh, Sun-Chul;Park, Young-Chul;Lee, Kwang-Young;Park, Won-Jo
    • Journal of the Korean Society for Precision Engineering
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    • v.18 no.9
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    • pp.37-44
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    • 2001
  • Ultrasonic testing has a characteristics such as excellent permeability, high-sensitivity to find defect and an almost exact measurement for position. size and direction of inner defect, which differ from other non-destructive testing. In the study, we developed program into optimal testing condition, to distinguish obstacle echo and defect position. This program shows generation and processing of ultrasonic pulse. We compared simulation with ultrasonic test in 45$^\circ$, 60$^\circ$and 70$^\circ$transducer. Test results were in accordance with simulation within 0.1~7.2%.

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