• 핵의학기술
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• 제22권2호
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• pp.105-111
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• 2018

Purpose Quality control of instrument takes up a large part in the Radioimmunoassays. The gamma-ray instrument, which is one of the important instruments in the laboratory, observes the condition and performance of instrument and performs quality control of the instrument by measuring the Normalization, Calibration, Background and etc. However, there are some automation instruments which can't measure the counting efficiency of gamma-ray meters, resulting in insufficient management in terms of performance evaluation of gamma-ray meters. Therefore, the purpose of this paper is to manage the quality control continuously and regularly by suggesting how to measure the counting efficiency of gamma-ray instruments. Materials and Methods In case of a comparative measurement method to a gamma-ray instrument dedicated to nuclear medical examination, the CPM and counting efficiency can be obtained after the measurement of normalization by inserting the I-125 $200{\mu}L$(CPM 50,000~500,000) into the test tube. With this CPM and counting efficiency values, it's possible to calculate the measurement of the DPM value and count the CPM from the automation instrument from the same source, and enter the DPM to calculate the counting efficiency using a comparative measurement method. Another method is to calculate the counting efficiency by estimating the half life using the radiation source information of the tracer in B test reagents of company A. Results According to the calculation formula using the DPM obtained by counting the normalization of gamma-ray meters, the detection efficiency was 75.16% for Detector 1, 76.88% for Detector 2, 77.13% for Detector 3, 75.36% for Detector 4 and 73.2% for Detector 5 respectively. Using another calculation formula estimated from the shelf life, the data of the detection efficiency from Detector 1 to Detector 5 were 74.9%, 75.1%, 76.5%, 74.9% and 73.2% respectively. Conclusion Although the accuracy of counting efficiencies of both methods are insufficient, this is considered to be useful for ongoing management of quality control if counting efficiency is managed after setting the acceptable ranges. For example, if the measurement efficiency is set to 70% or higher, the allowed %difference between measurements is within 3% and the %difference with the detector wall is set within 5%.

• 항공우주기술
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• 제13권2호
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• pp.185-193
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• 2014

본 논문에서는 계기비행절차 설계 프로그램 개발 과정을 개괄적으로 살펴보고자 한다. 제품의 시장 경쟁력 강화를 위하여 외산 제품에 대하여 조사하고 분석하였다. 개발 요구조건 도출을 위하여 계기비행절차 설계 기준에 대하여 살펴보고, 소프트웨어 프로그램 개발 및 시험평가 과정에 대하여 설명하였다.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 추계학술대회
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• pp.23-28
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• 2007

In e-Business environment, end-user e-Business capability is necessitated for performing his or her given tasks and improving his or her business performance in an enterprise of e-Business environment. An instrument of an end-user e-Business competency is extracted from the major components of a general competency. Through a pilot test, this study performed factor analysis, and proposed a 16-item instrument that can measure an end-user e-Business competency in e-Business environment. The application of the instrument is confirmed by applying it to measuring e-Business competency of end-users in an enterprise of e-Business environment and by presenting the measurement results for them.

• 가정과삶의질연구
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• 제14권1호
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• pp.131-146
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• 1996

The purpose of this study was to review the previous studies that have dealt with and used Family Adaptibility and Cohesion Evaluation Scales(FACES) considered as an effective instrument for measuring family functioning in order to clarify the theoretical meaning the practical applicability the limitation and the problems of this instrument. FACES has considerably contributed in measuring family dynamics in research and clinical fields and been paid attention to by researchers and clinicians since 1979 However the instrument has been also pointed out its limitation due to the conceptual and methodological problems. This study reviews these problems and then presents some implications to help to improve these problems and to explore the application of this instrument as a measure of family functioning.

• 대한간호학회지
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• 제39권3호
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• pp.366-375
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• 2009

Purpose: To evaluate the effects of case management using Resident Assessment Instrument-Home Care(RAI-HC) in home health service for older people. Methods: All elders were assessed at baseline and 3 months later using RAI-HC. The change of function in the intervention group was compared with that of a conventional intervention group. Function was measured with Activities of Daily Living(ADL), Instrumental Activities of Daily Living(IADL), Cognitive Performance Scale(CPS), Depression Rating Scale(DRS), Pain and the number of Clinical Assessment Protocols(CAP). Results: Among ninety two elders participated in the program, 59 were allocated to the case management group and 33 to the conventional group. The intervention, home health service by a nurse over a 3 month period, consisted of comprehensive assessment, case conference for care plan, direct care, education and referral, and outcome evaluation. The percent of elders whose function improved in the intervention group was greater than the conventional group for depression(odds ratio [OR]: 10.941, confidence interval [CI]: 2.338-51.206), IADL(OR: 4.423, CI: 1.151-16.999) and the number of CAP(OR: 11.443, CI: 3.805-34.410). Conclusion: Case management was effective for older people in the community. The effect might have resulted from individual, systematic intervention, however, standards of service including eligibility criteria for case management and collaboration of multi-disciplines is required for more effective home health service programs.

• Asia pacific journal of information systems
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• 제25권2호
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• pp.211-238
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• 2015

Despite longstanding concern with the dimensionality of the service quality construct as measured by ServQual and IS-ServQual instruments, variations on the IS-ServQual instrument have been enduringly prominent in both academic research and practice in the field of IS. We explain the continuing popularity of the instrument based on the salience of the item set for predicting overall customer satisfaction, suggesting that the preoccupation with the dimensions has been a distraction. The implicit mutual exclusivity of the items suggests a more appropriate conceptualization of IS-ServQual as a formative index. This conceptualization resolves the paradox in IS-ServQual research, that of how an instrument with such well-known and well-documented weaknesses continue to be very influential and widely used by academics and practitioners. A formative conceptualization acknowledges and addresses the criticisms of IS-ServQual, while simultaneously explaining its enduring salience by focusing on the items rather than the "dimensions." By employing an opportunistic sample and adopting the most recent IS-ServQual instrument published in a leading IS journal (virtually, any valid IS-ServQual sample in combination with a previously tested instrument variant would suffice for study purposes), we demonstrate that when re-specified as both first-order and second-order formatives, IS-ServQual has good model quality metrics and high predictive power on customer satisfaction. We conclude that this formative specification has higher practical use and is more defensible theoretically.

• 기본간호학회지
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• 제6권3호
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• pp.397-413
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• 1999

The purpose of study is to prevent Nosocomial Respiratory Infection after understand the Correlation about Recognition and Performance of Critical Nurses. Data were collected from Critical Nurses 300 persons who has worked in 14 Subsidary Hospitals of University in Seoul and the collection periode is from Nov. 1st, 1997 to Jul. 14th. 1998. There are 40 questions and constructed by 6 Domains which Hand Washing, Suction Management, Airway Management, Respiratory Instrument. Ventilation and Respiratory Intervention. Also, the Data were analized with SPSS program. The obtained results are as follows : (1) The Mean of Recognition for Prevention of Nosocomial Respiratory Infection is 4.649 and by Domains, Respiratory Intervention(4.758), Suction Management (4.669), Airway Management(4.660), Hand Washing(4.651), Ventilation(4.605) and Respiratory Instrument(4.561) according to the Mean. (2) The Mean of Performance for Prevention of Nosocomial Respiratory Infection is 3.991 and by Domains, Respiratory Intervention(4.498), Airway Management (4.107), Hand Washing(4.084), Suction Management(3.898), Respiratory Instrument(3.860) and Ventilation(3.690) according to the Mean. (3) In the Correlation of Recognition and Performance for the Prevention of Nosocomial Respiratory Infection, Hand Washing(r=0.755, p=0.000), Airway Management(r=0.724, p=0.000), Respiratory Intervention(r=0.693, p=0.000) are mentioned significant correlation level. The Performance is good whenever the Recognition is high for Respiratory Instrument(r=0.143, p=0.054) but it's not significant level and Suction Management and Ventilation has no Correlation. (4) In Normal Properties, The Recognition is good(p<.05) when Nurses has plenty Clinical Career, Attendance of the Education and Exclusive Nurse for the Respiratory Infection is in Hospital. The Age is not significant correlation level statistically but represent a little correlation. The Performance is good(p<.05) when Elder Age, Attendance of the Education and the plenty Clinical Career is not significant correlation level statistically but represent a little correlation. Another properties has no menas. According to the results, Suggestion is as follows ; (1) Required Education to advance Recognition and Performance about Prevention of Nosocomial Respiratory Infection for a little clinical career of Nursing and younger Nurses. (2) It needs to analyze Performance about Prevention of Nosocomial Respiratory Infection by observation of research worker.

• Asian Journal of Business Environment
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• 제6권1호
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• pp.13-17
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• 2016

Purpose - Purpose of paper is to clarify this PPP((Public Private Partnerships)'s essence and advantages as well as disadvantages, and then it will take it out some conclusions and implication together. To do so, PPP should be examined carefully and then landlord port will be investigated in view of PPP, then, it will give some implications whether or not PPP is successful to apply more port in concern. Research Design, data, and methodology - The methodology that I take is to look into both PPPs and then to look intp landlord port in view of PPP. By doing so, it can be more understandable to PPP in port industry. Results - It can be found that landlord port system is more valuable and applicable instrument to adapt for port competitiveness and productivity, which leads to efficient port management. Conclusions - Landlord port system is an alternative instrument to be apply to port management in terms of PPP, and it has been justified that many worldclass port has taken this landlord port management system.

• Management Science and Financial Engineering
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• 제17권2호
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• pp.99-129
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• 2011

This paper analytically studies how to choose hedging instrument for firms with steady operating cash flows from value maximization perspective. I derive a formula to determine option's optimal strike that makes hedged cash flow have the best monetary payoff given a hedger's view on the underlying asset. I find that not only the expected mean but also the expected standard deviation of the underlying asset in relation to the forward price and the implied volatility play a crucial role in making optimal hedging decision. Higher moments play a certain part in hedging decision but to a lesser degree.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 춘계 학술발표회
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• pp.768-773
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• 2009

Measuring method being applied for off-shore works is performed by using data logger or manual measuring instrument with wiring the cable connected from the sensor up to the position where measuring is allowed.(upper part of embankment or marine structure) Measuring management by using existing measuring method may be acceptable on the condition that the ground deformation volume(vertical, horizontal) is generally minimal and the site condition is good. But loss of measuring instrument, sensor cable failure or cutting is taken place frequently due to significant change of ground behavior caused by an external force change(embankment, excavation) under very soft ground condition(N value below 0-4). In case of the marine works, in particular, loss rate of measuring instrument is highly represented due to the factors of working barge anchoring, constructional interference and natural disaster. In order to solve these problems, measuring management was performed with employing underground wireless system at the immersed tunnel site. Measuring data was obtained freely under the marine environment by using underground wireless communication and cable cutting potential by ground behavior could be reduced. Measuring cost savings and its installation convenience were maximized by way of off-shore tower installation or cabling and by minimizing constructional interference of off-shore working barge. This case of measuring management was accomplished successfully.