reliability and test length

... Trang 1E NERGY AND E NVIRONMENTVolume 2, Issue 1, 2011 pp.39-48 Journal homepage: www.IJEE.IEEFoundation.org CFD and comparisons for a pump as turbine: Mesh reliability and performance concerns ... downstream and closure of a valve upstream Some results by Ramos et al are available for the first case and guide vane closure of a turbine, and they were obtained in lab conditions and compared ... results being QR and HR the rated conditions for the discharge and net head of the turbine Figure 3 Comparison between experimental data and numerical simulation of a turbine overspeed and guide vane

Ngày tải lên: 05/09/2013, 14:58

... Checklist-25 (HSCL-25) [23,28] The HTQ and HSCL-25 have been developed specifically for con-flict-affected populations and have been widely used and tested for reliability and validity in a number of countries ... respondents were in response option 1 or 2 Reliability The ICC test-retest reliability results from the smaller sur-vey (N = 82) were 0.61 for PCS and 0.68 for MCS and so showed a good agreement between ... Kitgum and Pader districts, northern Uganda [http://www.who.int/hac/crises/uga/sitreps/Ugandamortsurvey.pdf] 4. Sphere Project: Sphere Handbook: Humanitarian Charter for and Minimum Standards

Ngày tải lên: 18/06/2014, 19:20

... Effect Size (ES) and the Standardized Response Mean (SRM) were calculated, with the following values used for the interpretation of ES and SRM: ES and SRM = 0.20, small change; ES and SRM = 0.50, ... German, Polish and English language versions had good internal consistency reliability and dimension structure Construct validity was supported with lower sleep adequacy score and greater sleep ... citation purposes) Health and Quality of Life Outcomes 2008, 6:113 Background Sleep is an important element of functioning and wellbeing and is associated with clinical status and general health Indeed,

Ngày tải lên: 18/06/2014, 19:20

... Health Survey (SF-36) and the Hospital Anxiety and Depression scale Results: The internal consistency reliability of the GSRS was 0.43–0.87 and of the QOLRAD 0.79– 0.95 Test-retest reliability of the ... Health and Quality of Life Outcomes BioMed Central Open Access Research Reliability and validity of the Gastrointestinal Symptom Rating Scale (GSRS) and Quality of Life in Reflux and Dyspepsia ... GSRS and QOLRAD, respectively, were as follows: South Africa, 2.7% and 2.7%; Germany, 6.4% and 12.7%; Hungary, http://www.hqlo.com/content/6/1/12 8.8% and 8.8%; Italy, 6.3% and 1.1%; Poland,

Ngày tải lên: 18/06/2014, 22:20

... life activities and severity of illness with statistically sig- nificant correlation and path coefficients. Psychometric and clinimetric evaluation using test-retest and pre- to post-test assessment ... tively-derived and theoretically-based instrument were determined to be highly acceptable and relevant by lay and expert reviewers. The PLA was deemed appropriate, useful, and applicable for both males and ... qualitatively-derived and theory-guided PLA scale for children and adolescents with asthma demonstrated internal consistency reliability and construct validity based on exploratory and confirmatory

Ngày tải lên: 18/06/2014, 22:20

... instrumentation and control, operation reliability, system aging and human-machine interfaces.The book opens with the section on instrumentation and control aspects of nuclear power The following sections and ... Cruz Saldanha and Paulo Fernando F Frutuoso e Melo Chapter 17 Non-Destructive Testing for Ageing Management of Nuclear Power Components 311 Gerd Dobmann Part 4 Plant Operation and Human Factors ... Aghina, Antônio Carlos A Mól, Carlos Alexandre F Jorge, André C do Espírito Santo, Diogo V Nomiya, Gerson G Cunha, Luiz Landau, Victor Gonçalves G Freitas and Celso Marcelo F Lapa Chapter 21 Risk

Ngày tải lên: 19/06/2014, 11:20

... modern information and electronic technologies and component-based approaches to development in critical areas, on the one hand, improve reliability, availability, maintainability and safety characteristics ... international conferences and preparation of new standards (in particular, e.g., the Russian draft standard “State system for ensuring the uniformity of measurements. Intelligent sensors and intelligent ... and engineers to develop unified international requirements for standardizing the characteristics Sensor Devices with High Metrological Reliability 23 of self-checked sensor devices and

Ngày tải lên: 19/06/2014, 11:20

... robustness and safety margins, and accident probability assumptions For example, both Three Mile Island and Fukushima underscored the critical role of I&C signals in enabling operators to understand ... costs, direct access to and control over the nuclear plant’s reactor is impossible, and the potential risks of nuclear energy production require greater redundancy and reliability in plants’ control ... temperature, pressure and flow as well as control, regulation, and safety components that process the sensors’ data  Communication infrastructure—wires and cables, fiber-optic and wireless networks,

Ngày tải lên: 19/06/2014, 11:20

... operation regarding the compliance with national and international standards, recommendations, regulatory guides, reliability and availability metrics, and security mechanisms, were established Within ... well separated wavelengths, dramatically improves accuracy and reliability, and increases the number of monitored substances The Net4S, monitoring a number of parameters inside and outside a Nuclear ... (1999c) IEEE Standard 802.11a, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications High Speed Physical Layer in the 5 GHz Band IEEE (2003) IEEE Standard 802.11g,

Ngày tải lên: 19/06/2014, 11:20

... involves control and measurement signals to and from the field devices, information and commands within the control system, and status and demands between the SNPS control system and spacecraft ... response, and condition or health of the control system, components, and plant, and it provides diagnostic and prognostic information The commanding functionality is directed toward configuration and ... withstand chemical corrosion and high temperatures much better than conventional systems, but their immunity to electromagnetic interference and their large bandwidths and data rates ensure high reliability

Ngày tải lên: 19/06/2014, 11:20

... Reliability and Human Factors early... Treaty and in terms of Article 13 and 14 of the Basic Safety Standards (EC, 19 96) Chapter III of the Euratom Treaty deals with Health and ... Power – Control, Reliability and Human Factors 142 such as temperature, pressure and strain, distributed chemical sensing, could significantly enhance the ITER productivity and provide early ... real-time mode, and in which the incoming data may be distorted or noisy. This makes artificial neural networks ideally suited as a candidate for fault monitoring and diagnosis, control, and risk

Ngày tải lên: 19/06/2014, 11:20

... Undeclarednuclear activities and/or illegal use and transport of nuclear fuel can be detected throughdetermination of the isotopic ratios of U and Pu in such samples Accurate assessment andmonitoring of ... existing NPPs and the possible futureoperation of new plants demand accurate investigations about the possible contamination by radioactive releases of nuclear sites and neighboring territory and of ... (Wallner et al.,2000) and at the accelerator of Weizmann Institute, Israel (Berkovits et al., 2000) New AMSactinides line based on 1MV and 3 MV tandems have recently been and will be installed,respectively,

Ngày tải lên: 19/06/2014, 11:20

... values and the effective PNi - ν’pli data pair by checking with slightly increasing crack lengths from initial crack length a0, where load - displacement curve for long crack extension length ... Fracture Tests of Ferritic Steel Using Direct Current Potential Drop Method Journal of Testing and Evaluation, Vol 30, No 3, (May 2002), pp 221-227, ISSN 0090-3973 Sharobeam, M.H & Landes, ... rate in the line, and (b) the temperature difference between the top and the bottom of the pipe cross-section under consideration The flow model test was a full scale feed line and nozzle assembly

Ngày tải lên: 19/06/2014, 11:20

... the location and orientation of the test specimens used for the determination of tensile and fracture characteristics (impact tests, fracture mechanics tests) and the round bar tests used ... M e and q 0 , M 0 are the pressure and moment values that individually bring the tube at the onset of yielding and exhaust its load bearing capacity. b = D/2 and a = b −t are the external and ... Table 6 Results of tensile tests of the studied steel at ambient and elevated temperatures 280 Nuclear Power – Control, Reliability and Human Factors Fig.4 and Fig.5 shows the temperature

Ngày tải lên: 19/06/2014, 11:20

... and operation against current safety standards and practices, and they aim at ensuring a high level of safety throughout the plant’s operating lifetime They are complementary to the routine and ... requirements, and cause damage to safety systems Trang 3The knowledge of the aging and degradation processes and the developing of methods and guidelines for its management is important to the reliable and ... and they are significantly different from normal operating conditions, which have their functionality demonstrated by performance during normal operation (pre-operational tests and periodic testing)

Ngày tải lên: 19/06/2014, 11:20

... being, and commitment... current receiver online and in real time the fatigue experiment was monitored in the servo-hydraulic testing machine Figure 27 (one-step fatigue tests) and Figure ... when the magnetic Barkhausen noise was Nuclear Power – Control, Reliability and Human Factors 322 registered and when the lengthwise magnetostriction was measured. The specimens were measured ... and fatigue. Nuclear Power – Control, Reliability and Human Factors 326 Fig. 21. Distortion factor K as function of cycle number measured after well defined fatigue intervals in test

Ngày tải lên: 19/06/2014, 11:20

... utilize and develop their cognitive abilities Persons low in Openness to experience will easily bear a cognitive overload and avoid new and ambiguous situations that demand creativity and offer ... environment, and ability to transfer and use this knowledge during operations); Problem solving (the skill to recognize and define the sources of task difficulties, and to be active in providing and implementing ... to establish and to maintain current shared knowledge Communication defines the way how team members execute complex tasks, and the way how a team handles and manages difficulties, and high task

Ngày tải lên: 19/06/2014, 11:20

... (1993) Human Reliability Analysis: Context and Control, Academic Press, ISBN 978-0123526588, London Hollnagel, E (1996) Reliability Analysis and Operator Modeling, Reliability Engineering and System ... factors, background and initiating factors, initiating factors, intermediate factors, immediate factors, near accident, and accident) and two management stages (measurable results and countermeasures) ... immediate factors, accident and injury) for ensuring an easiness of analyses And finally, the IAD matrix consisted of the managerial and influencing factors, the fundamental causes and factors, unsafe

Ngày tải lên: 19/06/2014, 11:20

... group and are designated as FED (fire and explosion disasters) There are disasters occurring in the industrial plants and warehouses, manufacturing processes working with petrol and gas, hotels and ... chemical production, plastics and rubber, production of energy and its distribution, food industry and beverages The questionnaire assessment brought conclusions and lessons necessary for a partial ... Methodologic al instructions in the given area Standard TOP-005-1 — Operational Reliability Information a Standard TOP-005-2 — Operational Reliability Information Trang 5to it the process

Ngày tải lên: 19/06/2014, 11:20

... con-sistency reliability, test-retest reliability, item-subscale correlations, construct validity and concordance between child self-reports and parent proxy-reports Methods Subjects and Settings ... correlation coefficient (ICC) was used to evaluate the test-retest reliability for the subscales Values greater than 0.80 indi-cated high test-retest reliability [25] Multitrait scaling analysis (using ... further testing [14] Test-retest reliability was examined by computing ICC For the total sample and the patients of different age groups, the ICCs were close to or higher than the recommend standard

Ngày tải lên: 20/06/2014, 15:20