uml state diagram for online shopping system

A Study of Channel Estimation for OFDM Systems and System Capacity for MIMO-OFDM Systems

A Study of Channel Estimation for OFDM Systems and System Capacity for MIMO-OFDM Systems

Ngày tải lên : 20/11/2012, 11:28
... 2.25: The Alamouti STBC diagram for 2ì2 MIMO systems. 46 Fig 2.26: V-BLAST system diagram 49 Fig 2.27: The baseband MIMO-OFDM system model 55 Fig 3.1: Baseband OFDM system. 61 Fig 3.2: ... receiver for continuous OFDM systems. (c) The frequency division for OFDM systems. Fig 2.9: The continuous OFDM system model. As shown in Fig 2.9(a), the transmitted signal x i (t) for OFDM systems ... of thesis entitled “A Study of Channel Estimation for OFDM Systems and System Capacity for MIMO-OFDM Systems” Submitted by Zhou Wen For the degree of Doctor of Philosophy at the university...
  • 205
  • 638
  • 2
Research on a novel buck boost converter for wind turbine systems

Research on a novel buck boost converter for wind turbine systems

Ngày tải lên : 03/01/2014, 19:16
... waveform when the dc voltage is 50V. Fig. 13. Output current waveform when the dc voltage is 100V. Fig. 14. Output current waveform when the dc voltage is 200V. Fig.15. Output current waveform ... innovative single-phase, single-stage, flyback-based, buck-boost converter for renewable energy systems, especially for wind turbine systems in grid-connected applications. This paper focuses on the ... sinusoidal current waveform feeding to a single-phase grid. For small grid-connected wind turbine systems, inverters should be small, inexpensive and reliable. Further efforts have been directed...
  • 6
  • 416
  • 0
Tài liệu The Java EE Tutorial For Sun Java System Application Server 9.1 pptx

Tài liệu The Java EE Tutorial For Sun Java System Application Server 9.1 pptx

Ngày tải lên : 20/01/2014, 04:20
... EE 5). This preface contains information about and conventions for the entire Sun Java System Application Server documentation set. Before You ReadThis Book Before proceeding with this tutorial, ... JAX-WS 487 Further Information about JAX-WS 487 Contents The Java EE Tutorial • September 200714 The Java EE Tutorial For Sun Java System Application Server 9.1 Sun Microsystems, Inc. 4150 Network ... Simple Tag Handler Invoked? 256 Tag Handlers for Basic Tags 257 Tag Handlers for Tags with Attributes 257 Tag Handlers for Tags with Bodies 260 Tag Handlers for Tags That Dene Variables 261 Cooperating...
  • 1.1K
  • 15.9K
  • 2
Tài liệu Risk Management Guide for Information Technology SystemsRecommendations ppt

Tài liệu Risk Management Guide for Information Technology SystemsRecommendations ppt

Ngày tải lên : 22/01/2014, 02:20
... planned for the future IT system. System design documents and the system security plan can provide useful information about the security of an IT system that is in development. For an operational ... ã System interfaces (e.g., internal and external connectivity) ã Data and information ã Persons who support and use the IT system ã System mission (e.g., the processes performed by the IT system) ... (e.g., SecurityFocus.com forum mailings) ã Information Assurance Vulnerability Alerts and bulletins for military systems ã System software security analyses. 3.3.2 System Security Testing...
  • 55
  • 809
  • 0
Tài liệu Mechanisms for Knowledge Management Systems Effectiveness: An Exploratory Analysis pptx

Tài liệu Mechanisms for Knowledge Management Systems Effectiveness: An Exploratory Analysis pptx

Ngày tải lên : 24/01/2014, 00:20
... Creation Information systems Knowledge-based systems Knowledge management systems Figure 1 Knowledge management systems foundations KMS Dynamic systems Process oriented systems Integrated systems Locate ... Eighth American Conference on Information Systems, pp. 2085–2090. Martinsons MG. 1993. Cultivating the champions for strategic information systems. Journal of Systems Man- agement 44(8): 31–34. Mason ... management systems: issues and challenges for theory and practice. In International Conference on Infor- mation Systems Proceedings. Hansen MT, Nohria N, Tierney T. 1999. What’s your strategy for managing...
  • 14
  • 517
  • 0
Tài liệu BÀI 8 LÀM VIỆC VỚI CÁC STATE DIAGRAM ppt

Tài liệu BÀI 8 LÀM VIỆC VỚI CÁC STATE DIAGRAM ppt

Ngày tải lên : 25/01/2014, 07:20
... một chuỗi thay đổi. State diagram còn có tên khác là state machine Chú ý rằng một state diagram khác rất nhiều so với một class diagram hoặc một use case diagram. Các diagram chúng ta đã ... kết thúc phải không? 3. Các gợi ý khi trình bày một state diagram? 4. Một state diagram khác một class diagram, object diagram hoặc use case diagram ở những điểm quan trọng nào? 5. Định nghĩa ... quan trọng của state diagram UML state diagram cung cấp nhiều loại biểu tượng và chứa đựng nhiều ý tưởng nhằm mô hình hóa các thay đổi mà một object trải qua. Trong thực tế, state diagram rất...
  • 7
  • 1.6K
  • 9
Tài liệu Screening for Breast Cancer: Systematic Evidence Review Update for the U. S. Preventive Services Task Force doc

Tài liệu Screening for Breast Cancer: Systematic Evidence Review Update for the U. S. Preventive Services Task Force doc

Ngày tải lên : 14/02/2014, 21:20
... Corrected for lead time vs. predicted Italy 50-54 7.40% NR NR Corrected for lead time vs. predicted 55-59 -0.60% NR NR Corrected for lead time vs. predicted 60-64 0.70% NR NR Corrected for lead ... dose. However, compression may add to the discomfort of mammography for some women. A recent systematic review of 22 studies of pain and discomfort associated with mammography indicated that ... U.S. Preventive Services Task Force Quality Rating Methodology for Randomized Controlled Trials and Observational Studies Appendix B5. Quality Rating Methodology for Systematic Reviews Appendix...
  • 95
  • 1K
  • 0
Tài liệu Reviewing Research Evidence for Nursing Practice: Systematic Reviews ppt

Tài liệu Reviewing Research Evidence for Nursing Practice: Systematic Reviews ppt

Ngày tải lên : 16/02/2014, 22:20
... CENTRAL is, therefore, a unique resource for reviewers searching for randomised trials (Dickersin et al., 2002). Unfortunately, re- viewers for whom other types of study would be eligible for their ... Cochrane systematic reviews follow the same format and provide an example of robust methods for system- atically reviewing quantitative data from RCTs. Guidelines for undertaking systematic reviews Textbooks ... research or systematic reviews for themselves. Therefore they rely on reviews by other people when considering innovations and developments in their practice. Our aim for this book, therefore, is...
  • 282
  • 583
  • 0
Tài liệu Clinical Tests for the Musculoskeletal System pdf

Tài liệu Clinical Tests for the Musculoskeletal System pdf

Ngày tải lên : 17/02/2014, 19:20
... b Fig. 23 Extension compression test Fig. 24a, b Adams forward bend test: a upright posture, b forward bending Buckup, Clinical Tests for the Musculoskeletal System â 2004 Thieme All rights reserved. Usage ... spine: a flexion, b extension Buckup, Clinical Tests for the Musculoskeletal System â 2004 Thieme All rights reserved. Usage subject to terms and conditions of license. Clinical Tests for the Musculoskeletal System Examinations—Signs—Phenomena Klaus ... Clinical Tests for the Musculoskeletal System â 2004 Thieme All rights reserved. Usage subject to terms and conditions of license. Buckup, Clinical Tests for the Musculoskeletal System â 2004...
  • 288
  • 522
  • 0
Tài liệu Impossible Certainty - Cost Risk Analysis for Air Force Systems ppt

Tài liệu Impossible Certainty - Cost Risk Analysis for Air Force Systems ppt

Ngày tải lên : 17/02/2014, 22:20
... approach is that it allows for a consistent format across a variety of risk analysis methods. (See pp. 81–86.) 4 Impossible Certainty: Cost Risk Analysis for Air Force Systems Risk Assessment Risk ... docu- ment; and Nathan Tranquilli for his research and administrative assistance. 18 Impossible Certainty: Cost Risk Analysis for Air Force Systems Task 6: Considerations for a Cost Risk Policy This ... risk analysis for Air Force systems / Mark V. Arena [et al.]. p. cm. Includes bibliographical references. “MG-415.” ISBN 0-8330-3863-X (pbk. : alk. paper) 1. United States. Air Force—Appropriations...
  • 194
  • 349
  • 0
Tài liệu Synchronization and Linearity An Algebra for Discrete Event Systems doc

Tài liệu Synchronization and Linearity An Algebra for Discrete Event Systems doc

Ngày tải lên : 19/02/2014, 03:20
... lin- ear system theory form an ideal background. For algebra, [61] for instance provides suitable background material; for probability theory this role is for instance played by [20],and for linear system ... theory offers a unifying framework for systems in which the basic ‘engine’ of dynamics is synchronization,when these systems are considered from the point of view ofperformance evaluation. In other ... problem in manufacturing systems. If the buffer contents tends to go to ∞, one speaks of an unstable system. Of course, an unstable system is an example of a badly designed system. In the current...
  • 501
  • 1.1K
  • 0