overall efficiency and performance
Analysis and performance of high efficiency synchronous reluctance machines
... Lawrenson, P.J and Agu, L.A Theory and Performance of Polyphase Reluctance Machines Proc IEE, 111(8), pp 1435-1445, 1964 [2] Lawrenson, P.J and Gupta, S.K Developments in the Performance and Theory ... A.J.O., and Menzies, R.W and Anderson, A.F Theory and Performance of Reluctance Motors With Axially Laminated Anisotropic Rotors Proc IEE, 118(7), pp 887-894, 1971 [4] Cruickshank, A.I.O and Menzies, ... distribution of magnetic and non-magnetic materials can result in high saliency ratio and also high (Ld-Lq), a pre-requisite for improved performance The inductances and the performance of one such...
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Springer material flow management improving cost efficiency and environmental performance 2006 ISBN3790815918
... and ecological assessment and optimisation of production processes and products The analysis and assessment of the resource efficiency of processes and products requires lifecycle-wide data and ... Cost Efficiency and Environmental Performance With 54 Figures and 16 Tables Physica-Verlag A Springer Company Professor Dr Bernd Wagner University of Augsburg Centre for Further Training and Knowledge ... site, process and product In a first step, the enterprise is viewed as a black box, and all incoming and outgoing material and energy flows of the company are registered These material and energy...
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EMPIRICAL STUDY ON EFFICIENCY AND SUSTAINABILITY OF SOIL PURIFICATION FACILITY FORDISCHARGED POLLUTANTS FROMROAD SURFACE
... Lower layer of weir (cm) (cm) (cm) Akadama sand (5) Pit sand (40) Pit sand (45) Journal of Water and Environment Technology, Vol.3, No.2, 2005 water and Overflow water were measured by a flow ... in soil 200 400 Days 600 800 Removal efficiency For the purpose of evaluating pollutant removal efficiency, Gross Removal Efficiency (GRE) and Net Removal Efficiency (NRE) were defined as follows: ... content in pit sand The initial nitrogen content of Akadama sand in Tank A was higher than that of pit sand of Tank B The nitrogen content in both Tanks increased with time In both Tank A and B, the...
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CFD for hydrodynamic efficiency and design optimization of key elements of SHP
... the operation and performance of turbines, and can cause dangerous hydropneumatic effects, such as noise and vibrations 1.4 Draft tube and tailrace Another challenge is to understand the hydrodynamic ... contracting and gives rise to new flow separation and thus to energy losses The formed vortices, which detach and disintegrate towards downstream, cause valve and pipe vibrations and give rise ... hydrodynamic flow configuration and the design of special hydraulic structures and devices, such as control discharge structures and valves to control the flow behavior and regulate the pressure are...
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CFD and comparisons for a pump as turbine: Mesh reliability and performance concerns
... of Suter parameters [6] and Derakhshan [5] with one experimental performance curve for a real PAT operating as a pump and turbine mode The variation of head, power and efficiency with the discharge ... Cross-section of a multi-stage PAT In Figure CFD results and the comparison with experimental performance curves of head, power and efficiency are showed The efficiency is defined as: η tot = ρg∆HQ ρg∆HQ ... curves are very low, and the maximum errors are of 3.5% for the head and of the 7.4% for the efficiency Also the best efficiency point (BEP) is the same in the two cases Figure CFD performance curves...
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Numerical simulation and performance test of metal hydride hydrogen storage system
... porosity 90%, corrugated copper band, corrugated perforated aluminum band and copper cassette Dhaou et al [8] used the finned heat exchange system inside the reactor and revealed that the absorption/desorption ... heat and mass transfer process in a metal hydride bed From Jemni and Ben Nasrallah [9, 10] studies, two dimensional heat and mass transfer within a metal hydride reactor for both absorption and ... hydride powder and thermal management The heat and mass transfer model through metal hydride beds is a complicated phenomenon and heat transfer models including conduction, convection and radiation...
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Hydrodynamic and performance of low power turbines: conception, modelling and experimental tests
... flow and binary capacity depends on the size of the rod when compared to the size of the handle There is an advantage in using the largest possible rod and in reducing the length of the handle ... several plans by sectioning the entrances and exists of the flow, the upstream and downstream runner and other plans where it was difficult to understand the behaviour of the fluid inside the ... reserved International Journal of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.431-444 439 Graphic Variation of the discharge and head number and efficiency for different speeds runner:...
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Theoretical modeling of combustion characteristics and performance parameters of biodiesel in DI diesel engine with variable compression ratio
... the prediction of the combustion and performance characteristics of the C.I engine and further work is required for modeling engine emissions The combustion and performance results for B20% (by ... and biodiesel 5.4 Parametric study The results of combustion characteristics and performance parameters are presented with variable compression ratio started from 12 up to19 for both diesel and ... for diesel and biodiesel are approximate, as C13.77H23.44 and C19H35O2 respectively [8, 9] The combustion model is developed for the C.I engine and suitable for any hydrocarbon fuel and their...
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Effect of injection timing on combustion and performance of a direct injection diesel engine running on Jatropha methyl ester
... independent variables (load and injection timing) and dependent variables are shown in the Figures and the overall effects of injection timing on combustion, engine performance and emissions are discussed ... International Journal of Energy and Environment, Vol.1, Issue (2010) pp 343-350 D Agarwal and A.K Agarwal Performance and emissions characteristics of Jatropha oil (preheated and blends) in a direct ... measurements, process indicator and engine indicator Provision is also made for online measurement of temperature of -exhaust, -cooling water and -calorimeter water inlet and outlet and load on the engine...
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Energy efficiency and cost analysis of canola production in different farm sizes
... biocides and seeds On the other hand, renewable energy consists of human labour, farmyard manure and seeds and non-renewable energy includes machinery, diesel fuel, chemical fertilizers, biocides and ... output and net energy are crucial parameters when the availability of arable land is the limiting factor for plant production [21] The energy inputs were divided into direct and indirect and renewable ... energy use and input costs for cotton production in Turkey; from this study it was found that large farms were more successful in energy productivity, use efficiency and economic performance; ...
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Time and performance a three part study examining the relationships of job experience, organizational tenure, and age with job performance
... experience and performance, organizational tenure and performance, and age and performance The expected non-linear relationships suggest that observed correlations in studies are not random samplings ... variables and performance Page 21 Time and Performance CAHRS WP 01-05 In the first set of analyses, all three relationships under consideration - experience /performance, tenure /performance, and age/ performance are ... understanding of generalizable changes of performance over time, this paper examines the nature of the relationship between performance and time over the span of employees’ careers Page Time and Performance...
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Pivot Table Security, Limits, and Performance
... TABLE SECURITY, LIMITS, AND PERFORMANCE Open the PivotPwd.xlsx file, and refresh the pivot table, entering the password when prompted Select a cell in the pivot table, and on the Ribbon, click ... to hide the message bar, and to allow data connections These are application level settings, and they affect all workbooks you open Click the Microsoft Office button, and then click Excel Options ... protected, including the following: • Report Layout • Refresh • Group and Ungroup 159 160 CHAPTER ■ PIVOT TABLE SECURITY, LIMITS, AND PERFORMANCE • PivotTable Options • Show Report Filter Pages • Calculated...
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Pivot Table Limits and Performance
... PM Page 203 9.6 ■ UNDERSTANDING LIMITS: TEXT TRUNCATED IN A PIVOT TABLE CELL that can be placed in the row and column areas For column field items, the limit is 32,768, and for row field items, ... 9.9 ■ IMPROVING PERFORMANCE WITH THE OPTIMIZE MEMORY OPTION 9.9 Improving Performance with the Optimize Memory Option Problem Your pivot table is based on an external data source, and you wonder ... Microsoft Query button on the Windows Taskbar, and may see the query progress indicator at the left side of the Excel Status bar The pivot cache is cleared and then filled with records for the newly...
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Managing people and performance
... easier to identify whether performance is at the levels expected if standards are set Ideally, the standards of performance expected will be discussed and agreed with teams and individuals in the ... Managing people and performance 157 MAKING REQUIREMENTS EXPLICIT Performance requirements need to be explicit if the performance of the project team is to be measured against a standard It is much ... scenarios A very successful and high-achieving team still needs some support and attention The work of the team still has to be organized and supervised and the level of performance acknowledged...
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Portfolio optimization and performance analysis
... Yaari [506] and Kihlstrom and Mirman [327] The notions and definitions of “riskiness” based on stochastic dominance were suggested by Rothschild and Stiglitz ([435] and [436]) and Diamond and Stiglitz ... 119 127 Portfolio performance 5.1 Standard performance measures 5.1.1 The Capital Asset Pricing Model 5.1.2 The three standard performance measures 5.1.3 Other performance measures ... estimation and test MADD minimization with constraints Efficient and relative frontiers, RB > R0 Efficient and relative frontiers, RB < R0 Efficient, relative and beta frontiers Efficient, relative and...
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Tài liệu Oracle Real Application Clusters Deployment and Performance Guide docx
... xi What's New in Deployment and Performance? xv Oracle Database 10g New Features in RAC Deployment and Performance xv Introduction to Deployment and Performance Real Application ... Deployment and Performance 1-1 Overview of Deploying Applications on Real Application Clusters administer services and storage, and how to use RAC scalability features to add and delete instances and ... RAC Statistics and Events RAC statistics and events in AWR and Statspack reports Wait Events for RAC Monitoring Performance by Analyzing GCS and GES Statistics...
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Tài liệu Security and Performance Management doc
... Control Lists Security and Performance Management ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Standard and Extended IP Access Lists Standard and extended access ... Data Encryption Standard (DES) ➤ Access Lists—Standard access lists and extended access lists, to include where and how to place and design them ➤ Performance Management—Traffic management queuing, ... prompted for a username and password The user name and password is sent across the data network and is authenticated The TACACS server accepts or rejects the username and password pair The user...
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Tài liệu Service Level and Performance Monitoring pptx
... understand some performance data and analysis terms There are three essential concepts to understanding performance monitoring These are throughput, queues, and response time From these terms, and ... temperatures and air circulation, and so on The administrative leg manages the SL budget, hires and fires, maintains and reports on service level achievement, and reports to management or the CEO The performance ... analysis Performance Console comes with two tools built in: System Monitor and Performance Logs and Alerts but more about them later The first tool, due to its immediacy and as a troubleshooting and...
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Tài liệu Capabilities, Processes, and Performance of Knowledge Management: A Structural Approach pptx
... hypothesis of causality between customer performance and financial performance Hypothesis 7: There is a positive relationship between customer performance and financial performance RESEARCH METHODOLOGY ... generating and accessing process); (b) facilitating knowledge growth through culture and incentive and representing knowledge in documents, databases, and software (a facilitating and representing ... products, and/ or services and using accessible knowledge in decision making (an embedding and usage process); and (d) transferring existing knowledge into other parts of the organization and measuring...
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Tài liệu SQL Server 2008 Database Administration– Monitoring and Performance pdf
... health and activity – Performance counters and objects (“PerfMon”) • “Live” view of server health and activity – Data Collector • Historical view of server health and activity p Tools of Performance ... Understanding and Using the DMVs • PerfMon • Data Collector p Tools of Performance Monitoring • There are many built-in tools to monitor performance and health: – Activity Monitor and sp_who • ... Overview What We’re Going to Cover • Understanding and Using the DMVs • PerfMon • Data Collector p Chapter Introduction • Chapter is about performance and exception monitoring your server • We’ll...
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