Xem 1-15 trên 15 kết quả Synchronisation
  • Many services running on modern digital telecommunications networks require accurate synchronization for correct operation. For example, if switches do not operate with the same clock rates, then slips will occur and degrade performance. Telecommunication networks rely on the use of highly accurate primary reference clocks which are distributed network wide using synchronization links and synchronization supply units.

    pdf185p hoangchung_dtvt 12-12-2012 34 6   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Robust OFDM Timing Synchronisation in Multipath Channels

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Time and Frequency Synchronisation in 4G OFDM Systems

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  • Mạch tạo xung nhịp dùng để cung cấp xung nhịp cho μP. 1 2 3 4 5 6 7 8 9 CSY NC VCC PCLK X1 AEN1 X2 RDY 1 ASY NC READY EFI RD2 F/C AEN2 OSC CLK RES GND RESET 18 17 16 15 14 13 12 11 10 8284 Hình 3.1 – Mạch tạo xung nhịp 8284 CSYNC (Clock Synchronisation): ngõ vào xung đồng bộ chung khi hệ thống có các 8284 dùng dao động ngoài tại chân EFI. Khi dùng mạch dao động trong thì phải nối đất. PCLK (Peripheral Clock): xung nhịp f = fX/6 (fX là tần...

    pdf32p datmasuto 16-01-2010 308 203   Download

  • Mạch tạo xung nhịp 8284 CSYNC (Clock Synchronisation): ngõ vào xung đồng bộ chung khi hệ thống có các 8284 dùng dao động ngoài tại chân EFI. Khi dùng mạch dao động trong thì phải nối đất. PCLK (Peripheral Clock): xung nhịp f = fX/6 (fX là tần số thạch anh) AEN1 , AEN 2 (Address Enable): cho phép chọn các chân RDY1, RDY2 báo hiệu trạng thái sẵn sàng của bộ nhớ hay thiết bị ngoại vi........

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  • The research forming the basis of this book was supported by the Swedish research council Formas, and is primarily based on the research project ‘Territories of Consumption – Design and Territorial Control in Urban Commercial Spaces’. The book has also benefitted from the work done as I participated in the Formas research projects ‘Contradictory Urbanism’ (with project leader professor Katarina Nylund) and the Formas/Urban-net project ‘Replacis – Retail Planning for Sustainable Cities’ (with project leader professor Teresa Barata-Salgueira)....

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  • This book is intended for courses at least at Masters level to provide an introduction to the field of signal processing in telecommunications. The text therefore deals mainly with source coding, channel coding, modulation and demodulation. Adaptive channel equalisation, the signal processing aspects of adaptive antennas as well as multi-user detectors for CDMA are also included. Shorter sections on link budget, synchronising and cryptography are also included. Network aspects are not discussed and very little is given about wave propagation.

    pdf0p aries23 29-09-2012 48 16   Download

  • 6 Control over the growth rhythm As explained in Chapter 3, the large majority of branched fruit crops lay down floral buds on resting twigs. In many tropical regions these crops are not exposed to sufficient stress to curb and synchronise shoot growth. As a result they tend to flower and fruit poorly and this aggravates excessive, non-synchronous shoot growth

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  • Mạch tạo xung nhịp 8284 Mạch tạo xung nhịp dùng để cung cấp xung nhịp cho µP. 1 2 3 4 5 6 7 8 9 CSY NC VCC PCLK X1 AEN1 X2 RDY 1 ASY NC READY EFI RD2 F/C AEN2 OSC CLK RES GND RESET 18 17 16 15 14 13 12 11 10 8284 Hình 4.1 – Mạch tạo xung nhịp 8284 CSYNC (Clock Synchronisation): ngõ vào xung đồng bộ chung khi hệ thống có các 8284 dùng dao động ngoài tại chân EFI. Khi dùng mạch dao động trong thì phải nối đất. PCLK (Peripheral Clock): xung nhịp f...

    pdf30p muaythai3 19-09-2011 27 5   Download

  • However, double mode will also cause a redundancy effect. Diao and Sweller (2007) conducted a study with university students which demonstrated that text-only presentation mode was better than synchronised sound and text presentation mode, for both performance and cognitive load. This result supported the proposition that the redundancy effect occurs when sound is presented simultaneously with text, which is not beneficial to learning. However, this study did not take learners’ prior knowledge into account. A Chinese learning study, with high school...

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  • CSYNC (Clock Synchronisation): ngõ vào xung đồng bộ chung khi hệ thống có các 8284 dùng dao động ngoài tại chân EFI. Khi dùng mạch dao động trong thì phải nối đất.

    pdf30p hatien202 17-04-2010 58 4   Download

  • Bearing the foregoing in mind, lived experiences have been carefully selected and synchronised with generic ideas and principles of project management. By starting with the evolution of project management, the objective was to locate the discipline in its historical context, thus creating awareness to the project manager that he/she will be practising within a community of professionals. This is followed by the definition of the concept of project, which concomitantly elucidates related terms to which the project manager will find recourse from time-to-time.

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  • Probably the first commercial to make use of the newly invented principle of abstract composition was Walther Ruttmann’s ‘Der Sieger’, produced by Julius Pinschewer in 1922 for Excelsior tyres, where he adopted many ideas and motifs already present in his 1921 abstract work Opus 1. ‘Der Sieger’ was shot in black and white, coloured by combining toning with hand-colouring (cf Brinckmann, 1997: 263).

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  • This paper defines a language Z~ for specifying LFG grammars. This enables constraints on LFG's composite ontology (c-structures synchronised with fstructures) to be stated directly; no appeal to the LFG construction algorithm is needed. We use f to specify schemata annotated rules and the LFG uniqueness, completeness and coherence principles. Broader issues raised by this work are noted and discussed.

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  • Instant Messaging chat sessions are realtime text-based conversations which can be analyzed using dialogue-act models. We describe a statistical approach for modelling and detecting dialogue acts in Instant Messaging dialogue. This involved the collection of a small set of task-based dialogues and annotating them with a revised tag set. We then dealt with segmentation and synchronisation issues which do not arise in spoken dialogue. The model we developed combines naive Bayes and dialogue-act n-grams to obtain better than 80% accuracy in our tagging experiment. ...

    pdf6p bunbo_1 17-04-2013 11 1   Download

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