... both data and command When Command is added, it is placed to the head + b) Separate FIFO for command and data When transferring, the HBA check the command FIFO first Figure 3.8 Command Frame ... commands preemptively These measures are collectively named as the Command-First Algorithm Data Data Data Data Data Data Data Data FIFO head Data Data Data Data Command Command Command Command ... able to meet the enterprise’s performance demand To fill the performance gap and to optimize the cost and reliability, the storage system that can provide aggregated performance of multiple HDDs...
Ngày tải lên: 26/11/2015, 22:57
... analysis and optimization [29, 30] is a relatively new method that combines exergy with conventional concepts from long-run engineering economic optimization to evaluate and optimize the design and performance ... (energetic efficiency) and second law (exergetic efficiency) of thermodynamics and investigated the effects of overall pressure ratio, cycle temperature ratio and pressure losses on the performance of ... price) on the optimal performances are discussed Finite-time thermodynamics (FTT) [7-18] is a powerful tool for analyzing and optimizing performance of various thermodynamic cycles and devices In recent...
Ngày tải lên: 05/09/2013, 14:58
Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration plant Part 2: Heat conductance allocation and pressure ratio optimization
... U T , (uh )Π and π Π max, increase, and (ul )Π max, and (uk )Π max, max, decreases, (ui )Π max, decrease first and then increase Figures7 and show the characteristics of Π max, and (ηex )Π max, ... max, changes slightly, (uk )Π max, decreases, and (ui )Π max, , (ul )Π max, , and π Π max, increase Figures9 and 10 show the characteristics of Π max, and (ηex )Π max, , (u j )Π max, , j = h, l ... Figure that Π max, and (ηex )Π of b It can be seen from Figure 10 that with the increase of b , (uh )Π increases, (ul )Π max, decreases, and (ui )Π max, and π Π max, max, max, and π Π max, versus...
Ngày tải lên: 05/09/2013, 14:58
Exergoeconomic performance optimization of an endoreversible intercooled regenerative Brayton combined heat and power plant coupled to variable-temperature heat reservoirs
... where CH and CH max are the smaller and the larger of the two capacitance rates CH and Cwf , CL and CL max are the smaller and the larger of the two capacitance rates CL and Cwf , CIm in and CIm ... analysis and optimization [29, 30] is a relatively new method that combines exergy with conventional concepts from long-run engineering economic optimization to evaluate and optimize the design and performance ... is a powerful tool for analyzing and optimizing performance of various thermodynamic cycles and devices Some authors have performed the performance analysis and optimization for various CHP plants...
Ngày tải lên: 05/09/2013, 14:59
Module 7: Advanced Administration of User Accounts and Groups
... Configuration, expand Windows Settings , expand Security Settings , expand Account Policy, and then expand Password Policy Module 7: Advanced Administration of User Accounts and Groups Configuring Account ... expand Windows Settings , expand Security Settings , expand Account Policy, and then expand Account Lockout Policy 10 Module 7: Advanced Administration of User Accounts and Groups ? Creating Multiple ... Directory Users and Computers, create a new GPO or select an existing GPO, and then click Edit Expand Computer Configuration, expand Administrative Templates, expand Network, and then expand Offline...
Ngày tải lên: 18/10/2013, 18:15
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 ... IX X II Portfolio Optimization and Performance Analysis Standard portfolio optimization Static optimization 3.1 Mean-variance analysis 3.1.1 Diversification ... 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...
Ngày tải lên: 04/12/2013, 23:54
Tài liệu Advanced Network and System Administration ppt
... request Server sends result code and closes socket 16 LDAP Operations Client Session Operations Query and Retrieval Operations Bind, unbind, and abandon Search and compare Modification Operations ... Schemas specify allowed objectClasses and attributes 12 LDIF LDAP Interchange Format LDIF Files Standard text format for storing LDAP configuration data and directory contents Collection ... Databases balanced for read and write Databases can be replicated too Both are extensible data storage systems Both have advanced search capabilities System Administration Directories Types...
Ngày tải lên: 20/01/2014, 06:20
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...
Ngày tải lên: 13/02/2014, 08:20
Microsoft® SQL ServerTM 2005 Performance Optimization and Tuning Handbook pptx
... ServerTM 2005 Performance Optimization and Tuning Handbook This Page Intentionally Left Blank Microsoft® SQL ServerTM 2005 Performance Optimization and Tuning Handbook Ken England Gavin Powell ... 217 Investigating and Influencing the Optimizer 257 SQL Server and Windows 307 10 Transactions and Locking 355 11 Architectural Performance Options and Choices 409 12 Monitoring Performance 421 ... compatibility 11 Architectural Performance Options and Choices 11.1 The Management Studio and the NET Framework 11.2 Striping and mirroring 11.2.1 RAID arrays 11.2.2 Partitioning and Parallel Processing...
Ngày tải lên: 14/03/2014, 16:20
microsoft sql server 2000 performance optimization and tuning handbook 2001
... use of filegroups and multiple data and transaction log files will not be necessary to support their performance and administration requirements They will use one data file and one transaction ... Server and Windows 2000 in the areas of CPU, memory, and disk I/O How to track down and remove bottlenecks is explored Chapter introduces SQL Server locking mechanisms and strategies and the ... follows: Expand the server group and expand the server Right-click Databases, then click New Database Enter the name of the database and collation on the General tab Enter the name, file, size, and attribute...
Ngày tải lên: 04/06/2014, 13:17
Báo cáo hóa học: " Research Article Carrier Frequency Offset Estimation for Multiuser MIMO OFDM Uplink Using CAZAC Sequences: Performance and Sequence Optimization" ppt
... Gaussian and uncorrelated, the likelihood function for the channel H and CFO values φ can be written as Λ H, φ = 1 exp − R − A(φ)H N ×nr σn πσn , (6) where H and φ are trial values for H and φ and ... Communications and Networking were conducted to evaluate the performance of the CFO estimation using CAZAC sequences We first compare the performance using CAZAC sequences with the performance using ... sequences: (i) Frank and Zadoff Sequences [18], (ii) Chu Sequences [19], (iii) Polyphase Sequence by Sueshiro and Hatori (S&H Sequences) [20] Both Frank and Zadoff sequences and S&H sequences exist...
Ngày tải lên: 21/06/2014, 05:20
Báo cáo hóa học: " Research Article Performance Optimization for Delay-Tolerant and Contention-Based Application in IEEE 802.16 Networks" pptx
... limited bandwidth and the expensive radio spectrum, the demand of performance optimization became more and more critical In most situations, the optimization target is to get a higher throughput and/ or ... available bandwidth in the data transmission period is very small and is deficient to fit all the bandwidth requests Then, only a few bandwidth requests could be granted And then little bandwidth ... transmit bandwidth requests, nrtPS connections may adopt a mandatory unicast polling and an optional contention-based polling, while BE connections adopt a mandatory contention-based polling and not...
Ngày tải lên: 21/06/2014, 23:20
DAX query plans Introduction to performance analysis and DAX optimizations using query plans
... from the logical query plan and it makes use of different operators From the optimization point of view, it is the most important part of the trace to read and understand and, as you will see, it ... knowledge of the xVelocity engine internals and the ability to correctly read and interpret a DAX query plan In this paper we focus on very basic optimizations and we will guide you through the following ... Graupman and all our ssas-insiders friends I would also like to give a special thanks to T.K Anand, Marius Dumitru, Cristian Petculescu, Jeffrey Wang, Ashvini Sharma, and Akshai Mirchandani who...
Ngày tải lên: 07/08/2015, 11:33
Lubrication and tribological performance optimizations for micro electro mechanical systems
... Sinha Kumar and Hugh Spikes, and also to Tom Reddyhoff for their patience and guidance throughout the research and dissertation writing I have been honoured to work with each of you and have learned ... reciprocating sliding wear, and the friction and wear results are analysed and presented Chapter compares the performance of two different lubricants – a perfluoropolyether and a multiply-alkylated ... well as specialized packaging and storage of devices (Potter 2005) These procedures and processes add to the cost of MEMS devices and their manufacturing and usage, and thus cause some potential...
Ngày tải lên: 09/09/2015, 10:08
Part IV: Advanced Tips and Tricks
... add a new menu command to a set, highlight the command you want on the Menu tab and click the Add button Adding a menu command to a set gives you one-click access to a command you’d normally ... 298 Part IV: Advanced Tips and Tricks The materials provided in the Default folder include the following: ߜ 2DLT Sample and 3DLT Sample: These folders contain two dimensional images and three dimensional ... 304 Part IV: Advanced Tips and Tricks If you find you made a mistake when recording your action, you can go back and delete it from the program Just highlight the offending step and click the...
Ngày tải lên: 27/08/2012, 14:31
Advanced Security and Beyond
... of attacks • New techniques and security devices are helping to defend networks and systems • The most recent developments and announcements are listed on pages 458 and 459 of the text Exploring ... attacks, and speed at which they spread continues to grow • Recent attacks include characteristics listed on pages 457 and 458 of the text • Defenders are responding to the increase in the level and ... systems, networks, and applications Computer Forensic Skills • Computer forensic specialists require an additional level of training and skills: – Basic forensic examinations – Advanced forensic...
Ngày tải lên: 17/09/2012, 10:43