control reliability and failure analysis

... 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 ... Trang 1NUCLEAR POWER – CONTROL, RELIABILITY AND HUMAN FACTORS Edited by Pavel V Tsvetkov Trang 2Nuclear Power – Control, Reliability and Human Factors Edited by Pavel V Tsvetkov ... occurred in the past New instrumentation and control technologies based in digital systems, novel sensors and measurement approaches facilitate safety, reliability and economic competitiveness of nuclear

Ngày tải lên: 19/06/2014, 11:20

... themanagement and organizational aspects of the failures; physical causes of failureswill be discussed in later chapters 3.1 Failures Are Not Inevitable We value safety and reliability, and we take ... stated assumption of “one failure at atime.” organiza-Chapters 4–6 deal, respectively, with analysis, test, and redundancy niques We treat failure mode and effects analysis (FMEA) in considerable ... (2.3a) is used in mostpractical reliability analysis Thus, the failure rate (or failure probability) of aseries string is obtained by summing the failure rate (or failure probability) ofeach of

Ngày tải lên: 15/07/2020, 10:32

... Cause Analysis Root Cause Analysis (RCA) (RCA) An essential element of Asset Integrity Management and Reliability Centered Maintenance Procedures Dr Jens P. Tronskar Definition of Root Cause Analysis ... definitions Failure Mode – The effect by which a failure is observed on the failed item Failure – The termination of its ability to perform a required function Failure Effect –The consequence(s) a failure ... Identification and correction of the underlying problem. A Root Cause Analysis will disclose: A Root Cause Analysis will disclose: Why the incident, failure or breakdown occurred How future failures

Ngày tải lên: 15/10/2013, 15:06

... Open AccessThe effect of tight glycaemic control, during and after cardiac surgery, on patient mortality and morbidity: A systematic review and meta-analysis Kristin K Haga1*, Katie L McClymont1, ... tight glycaemic control during and after cardiac surgery However, due to the limited number of studies available and the significant variability in glucose levels; period of control; and the reporting ... tight glycaemic control both during and after surgery “DM” = diabetes mellitus (not specified if this was Type I or Type II) The glucose ranges for the “tight” control and “normal” control groups

Ngày tải lên: 10/08/2014, 09:23

... Surfactant therapy for acute respiratory failure in children: a systematic review and meta-analysis Mark Duffett1, Karen Choong1, Vivian Ng2, Adrienne Randolph3 and Deborah J Cook4 1 Department of ... respiratory failure Methods Trial selection We included trials that were prospective, that were rand-omized, that enrolled children intubated and mechanically ven-tilated for acute respiratory failure and ... KC, VN and DJC partici-pated in the design MD and VN extracted data and assessed the quality of the included studies MD, KC, DJC and AR helped to draft the manuscript All authors read and approved

Ngày tải lên: 13/08/2014, 03:21

... human genome: identification and analysis of the pseudogenes in chromosomes 21 and 22 Genome Res 2002, 12:272-280. 7. Zhang Z, Harrison P, Gerstein M: Identification and analysis of over 2000 ribosomal ... use, distribution, and reproduction in any medium, provided the original work is properly cited Comprehensive analysis of pseudogenes in prokaryotes: widespread gene decay and failure of putative ... index In particular, M tuberculosis (strains H37Rv and CDC1551), N meningitidis (strains Z1491 and MC8), and Helicobacter pylori (strains 26695 and J99) share similar index values within species

Ngày tải lên: 14/08/2014, 14:21

... attachment of interface controllers and service circuits to the line and trunk modules The interface controllers allow interfacing and control of LMs and TMs through the network control processors ... techniques to hardware and software reliability analysis for class 5 (end-office) applications This book covers Markov chain analysis for hardware reliability and an enhanced root-cause and metrics model ... off-hook condition and reports it to the interface controller All outgoing trunk control and incoming trunk connection requests are handled at this level of control - The interface controller is the

Ngày tải lên: 24/08/2014, 17:14

... meta-analysis Flaherman considered studies that reported both high birth weight and high BMI in school aged children for cumulative meta-analysis and they reported OR and RR and applied subgroup analysis ... underweight/ normal in childhood and adolescence (based on CDC growth chart (2014), and IOTF) in both case and control groups (binary outcome) to obtain OR and RR 2 Mean and standard deviation (M ± SD) ... cohorts (Chen, Egan and Flaherman) and the other one is based on any observational studies includ-ing cohort, case-control, and cross-sectional Chen and Egan applied subgroup analysis just for

Ngày tải lên: 20/02/2020, 22:04

... Asians, Caucasians and Mixed), cancer type, source of control group (population- or hospital-based controls), total number of cases and controls, and the number of cases and controls with the ... model (Tables and 3), and the heterogeneity was effectively decreased or removed in the subgroups stratified by ethnicity, cancer types and source of controls (Tables and 3) Sensitivity analysis We ... representing 10869 cases and 14289 controls, were ultimately analyzed for the HIF-1α C1772T polymorphism [8,17,26-63], and 30 studies, representing 7177 cases and 10442 controls, were analyzed

Ngày tải lên: 30/09/2020, 13:19

... occurrence (O), and detection (D) Analysts can identify known and potential failure modes and their causes and effects using FMEA, it also helps them prioritise the identified failure modes and to work ... Design control does not detect a potential cause of failure or subsequent failure mode; or there is no design control Source: Chang (2009), Chang and Cheng (2010), Chang and Sun (2009), Chang and ... Introduction Failure mode and effect analysis (FMEA) is an engineering approach used to identify, categorise and eradicate known potential failures from a system, design, process and service When

Ngày tải lên: 18/02/2021, 12:22

... vàng 70 Trang 12DANH SÁCH KÝ HIỆU VÀ THUẬT NGỮ FMEA Failure Mode and Effect Analysis Phân tích các hình thức sai lỗi và tác động FDA Food and Drug Administration Cục quản lý Thực phẩm và Dƣợc ... CỤ FMEA NHẰM GIẢM TỶ LỆ SẢN PHẨM LỖI TẠI CÔNG TY CHẾ TẠO MÁY VŨ AN (APPLYING THE FAILURE MODE AND EFFECTS ANALYSIS IN REDUCING DEFECTIVE PRODUCTS RATE AT VU AN Trang 2CÔNG TRÌNH ĐƯỢC HOÀN ... information collection, processing and testing of the feasibility of the solution Given the limited time of the thesis, the proposals that are approved, implemented and recorded in the short term

Ngày tải lên: 08/03/2021, 21:18

... Lloyd and Luk (2011); Johnson and Grier (2011);Jani and Han (2011); Walter and Edvardsson (2012); and Ryu and Han (2011) Research has tended to concentrate on employee integration, servicescape and ... Quality and Service Failure and Recovery Studies 140 Table 3.9.2 Service Recovery Actions and Key Literature Sources 268 Table 3.9.3 A Summary of Emotion Items Used in Service Failure and Recovery ... of failure and customers repurchase intentions They found service failure had a negative influence on customer repurchase intentions Previous studies reported that severity of failure and failure

Ngày tải lên: 07/08/2022, 16:37

... subsystem and control subsystem (monitoring and control automata) Monitoring automaton C analyses output signals X from monitoring and control object (MCO) and forms its status code ZC Control ... version redundancy type and development 28 Nuclear Power – Control, Reliability and Human Factors of channel versions are fulfilled without thorough analysis of their independence and assessment of ... common cause failure of 46 Nuclear Power – Control, Reliability and Human Factors safety-critical I&Cs and the taxonomic scheme of multi-version computing as a part of dependable, safe and secure...

Ngày tải lên: 19/06/2014, 11:20

... Plant Instrumentation and Control 51 The control and safety of nuclear power plants depend above all on temperature and pressure (including differential pressure to measure level and flow) instrumentation—the ... such as feedwater control, main turbine control, and recirculation control (U.S NRC, 2011; IAEA, 1999) By the 1990s, microprocessors were being used for data logging, control, and display for many ... components in their control and safety systems (IAEA, n.d.) Today, control panel instruments such as controllers, display meters, and recorders are mostly digital Most diagnostic and measuring equipment...

Ngày tải lên: 19/06/2014, 11:20

... device-level data and control signals, An Approach to Autonomous Control for Space Nuclear Power Systems 107 system-level information and commands, and spacecraft-level status and demands The effective ... logic control for power transition, Hinfinity control and genetic-algorithm based control for steam generators, neural network control for power distribution in a reactor core, and supervisory control ... characteristics of autonomous control include intelligence, robustness, optimization, flexibility, adaptability, and reliability 102 Nuclear Power – Control, Reliability and Human Factors Control systems...

Ngày tải lên: 19/06/2014, 11:20

... components, and incipient operational events or failures The communication functionality involves control and measurement signals to and from the field devices, information and commands within the control ... control system, and status and demands between the SNPS control system and spacecraft or ground control The fault management and configuration management functionalities are interrelated and depend ... 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...

Ngày tải lên: 19/06/2014, 11:20

... dose rates, and for collecting air samples with aerosol filters and charcoal cartridges, and possibly for soil and biological samples, and for their immediate counting and spectrometric analysis ... 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 evaluation ... sensor for smart structures – J of Struct Control, (7) 144 Nuclear Power – Control, Reliability and Human Factors Rivera J., et al (2007) Self-calibration and optimal response in intelligent sensors...

Ngày tải lên: 19/06/2014, 11:20

... Power – Control, Reliability and Human Factors Will-be-set-by-IN-TECH proceeding: Actinides AMS at CIRCE and 236 U and Pu measurements of structural and environmental samples from in and around ... then the ANU and VERA systems Origin and Detection of Actinides: WhereDetection of Actinides: Where dothe Accelerator Mass Spectrometry Technique? Origin and Do We Stand with we Stand with the ... 186 20 Nuclear Power – Control, Reliability and Human Factors Will-be-set-by-IN-TECH E.M (2008) Natural and anthropogenic 236 U in environmental samples Nuclear Instruments and Methods in Physics...

Ngày tải lên: 19/06/2014, 11:20

... displacement data pair and its each fitting curve for short and long crack extension of cold leg piping material 12 202 Nuclear Power – Control, Reliability and Human Factors 3.3 Combined analysis Based ... combined analysis Next, the standard deviation σ of Eq.(15) is calculated from J value by combined analysis and J value obtained by J-R curve of Eq.(14) Such that, the data of combined analysis ... 204 Nuclear Power – Control, Reliability and Human Factors where Jfit is J value obtained by fitting function of Eq.(14) Jcombined is J value obtained by combined analysis and n is the number...

Ngày tải lên: 19/06/2014, 11:20

... 236 Nuclear Power – Control, Reliability and Human Factors Westergaard, H.M (1939) Bearing Pressures and Cracks Journal of Applied Mechanics, Vol 6, pp 49-53 ASTM E399 - 09e2 Standard Test Method ... are demonstrated in Figure and are used to characterize this steel and as a benchmark for comparison with high-alloyed steel 242 Nuclear Power – Control, Reliability and Human Factors -2 10 -3 ... case of a coolant pump failure; (iv) the vessel accommodates a relatively large pressurizer volume that provides better control 258 Nuclear Power – Control, Reliability and Human Factors Will-be-set-by-IN-TECH...

Ngày tải lên: 19/06/2014, 11:20