Ngày tải lên: 27/07/2014, 21:21
Ngày tải lên: 12/07/2014, 16:21
Avira Antivir Updates Generator 2.0 – Đóng gói bản cập nhật Offline cho Avira Antivir doc
... đặt. Từ giao diện chính của chương trình, khung Avira Antivir Source Path là đường dẫn mặc định của chương trình đến thư mục cài đặt Avira Antivirus trên hệ thống vì vậy bạn không cần thay ... tuyến nên quá trình cập nhật khá chậm. Avira Antivirus Updates Generator là tiện ích nhỏ gọn sẽ giúp bạn đóng gói tự động phiên bản cập nhật mới của Avira thành bản cài đặt Offline, giúp cải ... cập nhật mới nhất của Avira cho bạn. Sau khi tạo xong gói dữ liệu nó sẽ được lưu trữ trên dekstop và mang định dạng .vdf. Sau đó bạn đóng ứng dụng lại, rồi kích hoạt Avira Antivirus lên bằng...
Ngày tải lên: 25/03/2014, 09:22
Tài liệu Boot từ đĩa CD, DVD cứu hộ – Use True Image Rescue CD backup pptx
... – Backup Kiểm định chất lượng file sao lưu – Validate Backup Archive Tạo đĩa CD, DVD cứu hộ – Bootable CD Rescue Phục hồi dữ liệu từ file sao lưu – Restore Kích hoạt chức năng phục hồi ... phục hồi dữ liệu mà không cần vào hệ điều hành – Active Acronis Startup Recovery Quản lý Windows System Restore Thiết đặt các tùy chọn mặc định của Windows Một số tính năng khác của chương...
Ngày tải lên: 21/01/2014, 02:20
Tài liệu 3G CDMA2000 Wireless System Engineering pptx
... Standard for cdma2000 Spread Spectrum Systems, Telecommunications Industry Association, March 2000. [5] TIA/EIA/IS-2000.3-A, Medium Access Control (MAC) Standard for cdma2000 Spread Spectrum Systems, ... for cdma2000 Spread Spectrum Systems, Telecommunications Industry Association, March 2000. [7] TIA/EIA/IS-2000.5-A, Upper Layer (Layer 3) Signaling Standard for cdma2000 Spread Spectrum Systems, ... bits 12 CRC bits 8 encoder tail bits 16 CRC bits Figure 2.2 Examples of 20-ms and 5-ms F-DCCH frames. 3G CDMA2000 Wireless System Engineering added, are not convolutionally coded, and are not block-interleaved....
Ngày tải lên: 21/01/2014, 02:20
A new system to remove cd from contaminated aqueous medium
... of Cd 2ỵ by C. sorokiniana cells was done at concentrations of 10 and 25 mg l À1 . At both these concentrations the uptake of Cd 2ỵ by microalgal cells was rapid (Fig. 2). Biosorption of Cd 2ỵ from ... immo- bilized algal biomass showed that Cd 2ỵ sorption g 1 biomass (q) increased as equilibrium Cd 2ỵ concentration (C eq ) increased. C eq also increased as initial Cd 2ỵ con- centration (C i ) increased ... For biosorption, 5 mg l 1 Cd 2ỵ solution was pumped upwards through the column at the ow rate of 5 ml min À1 . Effluent was collected after every 500 ml of the total 52 l Cd 2ỵ solu- tion passed....
Ngày tải lên: 15/03/2014, 23:17
Báo cáo Y học: A new siglec family member, siglec-10, is expressed in cells of the immune system and has signaling properties similar to CD33 docx
... 0 Blood population FITC staining(%) PE1 (%) ALCAM–hIg CD5 –hIg Siglec-10–hIg PBMC CD2 01 70 0 4 CD1 41 11 0 0 8 CD4 lo1 12 0 0 11 CD4 hi1 63 8 0 0 CD3 1 65 4 0 0 Granulocytes 0 0 0 q FEBS 2001 Immune-restricted ... population PE1 (%) Siglec-FITC1 (%) FITC1 and PE1 (%) PBMC 19.9 CD2 01 8.3 2.4 CD1 41 12.1 12.0 CD4 lo 1 11.7 12.0 CD4 hi 1 63.0 0 CD3 1 65.0 0 CD2 81 47.5 2.0 Granulocytes 88.6 Fig. 3. Expression of siglec-10 ... anti-hIg Ig and/or phycoerythrin-conjugated anti -CD2 0 Ig, anti -CD3 Ig, anti -CD1 4 Ig, and anti -CD4 Ig. mALCAM–hIg fusion protein (hIg Rg control) and CD5 –hIg fusion protein (hIg Eg control) were analyzed...
Ngày tải lên: 24/03/2014, 04:21
26 khả năng khởi động Antivirus Rescue CD cho quét Offline pdf
... đặt vào một khả năng khi khởi động ổ đĩa USB flash từ menu chính. Download AVG Rescue CD 3. Avira AntiVir Rescue System Dung lư ợng: 234MB Định dạng: ISO Phương pháp chữ ký được cập nhật: ... việc sao lưu các tập tin bằng cách nhấn Alt + F5 chỉ từ vỏ. Download Avira AntiVir Rescue System 4. Bitdefender Rescue CD Giá: Miễn phí M ột số thông tin khác : Một số tùy chọn quét như ... trình AntiVirus Toolkit eScanAV lệnh. Download eScan Rescue Disk 8. ESET SysRescue Giá: chỉ có sẵn cho người sử dụng ESET (trả tiền và dùng thử) Hệ điều hành: Windows PE Rescue CD chủ...
Ngày tải lên: 03/04/2014, 09:22
Cdmarf system engineering
... Capacity of a Cellular CDMA System, ” IEEE Trans. on Vehicular Technology, Vol. 40, May 1991, pp. 306–307. Select Bibliography Glisic, S., and B. Vucetic, Spread Spectrum CDMA Systems for Wireless ... commercial CDMA systems in major metropolitan areas. The IS-95 CDMA is now being used in numerous cellular and PCS markets around the world. Service providers are deploying these systems in their ... spread broadband signal [2]. Furthermore, a CDMA system can take advantage of multipaths by using the rake receiver, which demodulates and uses 10 CDMA RF System Engineering the filter modeling...
Ngày tải lên: 27/05/2014, 03:49
Báo cáo hóa học: "Novel low-PAPR parallel FSOK transceiver design for MC-CDMA system over multipath fading channels" pdf
... keying (FSOK) technique for multi-carrier CDMA (MC-CDMA) systems. In the literature, conven- tional MC-CDMA systems, such as the Walsh-Hada- mard (WH) MC-CDMA system, experience limited uplink performance ... gain. Compared to the existing MC-CDMA and SC-FDMA systems, the proposed system exhibits significant performance superiority. Keywords: multi-carrier CDMA (MC-CDMA), frequency-shift orthogonal ... ith FSOK MC-CDMA symbol of the kth user in (9) can be expressed by Figure 8 Comparison of the PAPR CCDF for the proposed MC-CDMA, the conventional SC-FDMA, the conventional MC-CDMA systems, the...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Frequency domain equalization space-time block-coded CDMA transmission system" pdf
... Hadamard matrix. Table 1 Transmission system considered Transmission System GTR MC CDMA CP F H M T cp R cp MC CDMA ZP F H M T zp I P SC CDMA CP I M T cp R cp SC CDMA ZP I M T zp I P Medina and Sampaio-Neto ... space-time block-coded CDMA transmission system César Augusto Medina * and Raimundo Sampaio-Neto Abstract In this work we propose a space-time block-coded (STBF) CDMA transmission system suitable for ... equalization (FDE), space-time block-codes (STBC), single carrier CDMA transmission systems, multicarrier CDMA transmission systems 1 Introduction Space-time block-codes (STBC) schemes have emerged as...
Ngày tải lên: 21/06/2014, 00:20
Báo cáo hóa học: "Research Article OV-CDMA System: Concept and Implementation" potx
... performance of our newly proposed OV-CDMA system with existing multirate systems, Figure 3 shows the SIR comparison between the OV-CDMA and the classical VPG-FFH-CDMA systems while varying the transmission ... for the OV-CDMA system and when G s = 40 for the VPG FFH- CDMA system. The normalized transmission rate increases by increasing ε s or decreasing G s for the OV-CDMA and the VPG-FFH-CDMA, respectively. ... 20 users, the SIR for the OV-CDMA system is always greater than that of the VPG-FFH-CDMA system. In Figure 7, we present the simulated timing diagram for the OV-CDMA receiver in which the input...
Ngày tải lên: 21/06/2014, 22:20
Báo cáo hóa học: " A Robust Parametric Technique for Multipath Channel Estimation in the Uplink of a DS-CDMA System" pot
... asynchronous CDMA systems,” IEEE Transactions on Signal Processing, vol. 48, no. 11, pp. 3162–3174, 2000. [5] M. Torlak and G. Xu, “Blind multiuser channel estimation in asynchronous CDMA systems,” ... asynchronous DS-CDMA systems,” IEEE Transactions on Communications, vol. 47, no. 11, pp. 1628–1631, 1999. [8] N. Petrochilos and A J. van der Veen, “Blind time delay esti- mation in asynchronous CDMA via ... multiple-access systems,” IEEE Transactions on Com- munications, vol. 49, no. 2, pp. 290–302, 2001. [15] E. Aktas and U. Mitra, “Single-user sparse channel acquisition in multiuser DS-CDMA systems,”...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " Multilevel LDPC Codes Design for Multimedia Communication CDMA System" docx
... code division multiple access (CDMA) system, the primary challenge is high-quality and high data rate multimedia communication. Normally, the mobile transmission systems deal with various kinds ... services. It implies that the next generation of CDMA transmission should be of higher data rate, mul- tilevel, or multirate, such as wideband CDMA (WCDMA), adaptive modulation, and so on. Coded ... Communica- tion, Chonbuk National University, Korea. His main research interests are sequences, CDMA mobile communication systems, er- ror coding, and space time signal processing. Yu Yi received his Master’s...
Ngày tải lên: 23/06/2014, 00:20
Báo cáo hóa học: " Rotated Walsh-Hadamard Spreading with Robust Channel Estimation for a Coded MC-CDMA System" ppt
... broadband MC-CDMA system with robust channel estimation in the synchronous downlink. T he similarities between rotated spreading and signal space diversity are outlined. In a multiuser MC-CDMA system, ... code rates are favorable for MC-CDMA, as MC-CDMA utilizes diversity more efficiently compared to pure OFDMA. The application of rotated spreading in an MC-CDMA system allows exploiting diversity ... INTRODUCTION Multicarrier code-division-multiple access (MC-CDMA) is a promising candidate for the downlink for the fourth gen- eration of mobile radio systems. MC-CDMA systems of- fer the spectral efficiency of...
Ngày tải lên: 23/06/2014, 00:20
Báo cáo hóa học: " A Complementary Code-CDMA-Based MAC Protocol for UWB WPAN System" pptx
... N >G, otherwise the system becomes a TDMA system. Assuming G = 2, the LRP of CC-CDMA protocol and the protocol in [9] are shown in Figure 5.ItisseenfromFigure 5 that the CC-CDMA proto- colismoreefficient ... UWB WPAN System 251 Superframe m − 1Superframem Superframe m +1 Beacon m from PNC CDMA-based access period CTAP GTS1 GTS2 ··· GTSn − 1GTSn Figure 2: Proposed superframe format for CC-CDMA protocol. The ... utilize the bandwidth of a UWB system to save energy. Finally, the control mechanism is simple compared to that in traditional CDMA cellular sys- tem. 3. THE NEW CC-CDMA MAC PROTOCOL 3.1. Protocol...
Ngày tải lên: 23/06/2014, 00:20
Báo cáo hóa học: " Analysis of a Combined Antenna Arrays and Reverse-Link Synchronous DS-CDMA System over Multipath Rician Fading Channels" doc
... link in DS- CDMA terrestr ial mobile systems,” IEEE Trans. Commun., vol. 47, no. 11, pp. 1632–1635, 1999. [8] S. H. Hwang and D. K. Kim, “Performance of reverse- link synchronous DS-CDMA system on ... Combined Antenna Arrays and Reverse-Link Synchronous DS-CDMA System over Multipath Rician Fading Channels Yong-Seok Kim Communication Systems Lab, School of Electrical and Electronics Engineering, ... magnitude. Keywords and phrases: antenna arrays, reverse-link synchronous DS-CDMA, multipath Rician fading channel. 1. INTRODUCTION CDMA systems have been considered as attractive multiple- access schemes...
Ngày tải lên: 23/06/2014, 00:20