... Sanchez-Sinencio Laszlo Kish Charles S Lessard Costas Georghiades May 2006 Major Subject: Electrical Engineering iii ABSTRACT A Low Power, High Dynamic Range, Broadband Variable Gain Amplifier for an Ultra Wideband ... that the VGA based on the differential pair with diodeconnected loads has a constant gain -bandwidth- product In other words, there is a tradeoff associated with the gain and bandwidth When gain ... not suitable for this design, because it cannot simultaneously satisfy the required specifications of large bandwidth, large variable gain range, and large linear range (1Vpp) 12 II.1.2 Analog...
Ngày tải lên: 06/11/2012, 10:26
... convergence performance of IPNLMS, IPMDF, and MDF using the same experimental setup as before but using a speech input from a male speaker An echo path change, comprising an additional 12-sample delay, ... data input for both the MDF and IPMDF algorithms As a result, IPNLMS achieves a better tracking capability than the MDF algorithm The tracking capability of NLMS is slower compared to IPNLMS and ... algorithms Although substantial computational savings can be achieved, one of the main drawbacks of frequency-domain approaches is the inherent delay introduced [13] The multidelay filtering (MDF) algorithm...
Ngày tải lên: 22/06/2014, 19:20
The Day Trader''''s Course: Low-Risk, High-Profit Strategies for Trading Stocks and Futures pot
... wallop Yahoo shares, Earnings warning, Koogle removal take toll," by Bambi Francisco, CBS.MarketWatch.Com, 30 ПЕРВЫЕ ШАГИ ПЕРВЫЕ ШАГИ 31 March 8, 2001) На ту дату 52-недельный диапазон цен Yahoo ... рынке ("U.S stock funds see record outflows, Estimated $13 billion drop in February mirrors concerns." by Craig Tolliver & Irish Regan, CBS.MarketWatch.Com, March 1, 2001.") БРОКЕРСКАЯ КОНТОРА — ... 'платой за поток ордеров"' • Если участвует акция NASDAQ, ваш брокер может по слать ордер маркет-мейкеру этой акции на NASDAQ Многие маркет-мейкеры NASDAQ также приплачивают брокерам за поток ордеров...
Ngày tải lên: 28/06/2014, 08:20
báo cáo khoa học: " A simple and high-sensitivity method for analysis of ubiquitination and polyubiquitination based on wheat cell-free protein synthesis" potx
... a cell-free system FEBS Lett 2008, 582(18):2737-2744 Seki M, Narusaka M, Kamiya A, Ishida J, Satou M, Sakurai T, Nakajima M, Enju A, Akiyama K, Oono Y, Muramatsu M, Hayashizaki Y, Kawai J, Carninci ... Palme K, Pickart C, Bachmaira A: Ubiquitin lysine 63 chain-forming ligases regulate apical dominance in Arabidopsis Plant Cell 2007, 19(6):1898-1911 Madin K, Sawasaki T, Ogasawara T, Endo Y: A ... M, Ishii Y, Arakawa T, Shibata K, Shinagawa A, Shinozaki K: Functional annotation of a full-length Arabidopsis cDNA collection Science 2002, 296(5565):141-145 Kus B, Gajadhar A, Stanger K, Cho...
Ngày tải lên: 12/08/2014, 03:20
A Push-pull based Application Multicast Layer for P2P live video streaming
... show that the average parts delay and average segments delay from source to nodes decrease with the increase of bandwidth contribution High bandwidth nodes delay is lower than that of medium bandwidth ... [CdSLMM11] Ana Paula Couto da Silva, Emilio Leonardi, Marco Mellia, and Michela Meo, Chunk distribution in mesh- based large-scale p2p streaming systems: A fluid approach, IEEE Trans Parallel Distrib ... Nodes have different bandwidth, and not form a balanced and complete tree There are approximately 35% nodes that have high bandwidth 700Kbps, and 45% nodes that have medium bandwidth 300Kbps, and...
Ngày tải lên: 25/03/2015, 09:37
Tài liệu tiếng anh Điện tử công suất mạch MERS A new AC current switch called MERS with low on state voltage IGBTs for renewable energy and power saving applications
... terminals will not lead to a short of the transistors Additionally, the capacitor is smaller than a normal voltage source converter Based on these characteristics, a new low on-state voltage IGBT ... losses are comparatively high The relative losses for a real scale system have been estimated and also included in the figure By increasing the dc-link voltage, and as a result the no-load voltage ... because it has high potential for high performance heat control In general, induction heating uses a high frequency ac power supply and a capacitor is connected in shunt or series with the load...
Ngày tải lên: 15/10/2013, 16:10
Báo cáo "Designing a low-cost WebGIS system for deliviering land information via internet " potx
Ngày tải lên: 28/03/2014, 15:20
Báo cáo Y học: Barley a-amylase Met53 situated at the high-affinity subsite )2 belongs to a substrate binding motif in the bfia loop 2 of the catalytic (b/a)8-barrel and is critical for activity and substrate specificity pot
... green) and TAA (in black) The superimpositioning was guided by the catalytic acids (D179AMY2, E204AMY2, and D289AMY2 and D206TAA, E230TAA, and D297TAA) The invariant Y51AMY2 and Y82TAA are at subsite ... substrate analogues derived from acarbose and barley a- amylase (AMY2 [16]); and Taka-amylase A (TAA [17]) (A) Stereo view of interactions involving segments of ba loops and (i.e domain B) from AMY2 ... Bacterium Bacterium Bacterium Bacterium Yeast Bacterium Archaea Bacterium Bacterium Bacterium Bacterium Bacterium Bacterium Bacterium Bacterium Bacterium Bacterium Bacterium Plant Plant a- Amylase Barley...
Ngày tải lên: 31/03/2014, 08:20
ridge aperture antenna array as a high efficiency coupler for photovoltaic applications
... Srigungsitthisunti, and Xu: Ridge aperture antenna array as a high efficiency coupler Fig Results for an aperture array defined by a = 750 nm (a) Reflection from aperture array in comparison to a bare silicon ... Srigungsitthisunti, and Xu: Ridge aperture antenna array as a high efficiency coupler Fig Absorption enhancement in silicon compared with that without the aperture array in near-IR is near zero if no antenna array ... Srigungsitthisunti, and Xu: Ridge aperture antenna array as a high efficiency coupler R A Pala, J White, E Barnard, J Liu, and M L Brongersma, “Design of plasmonic thin-film solar cells with broadband absorption...
Ngày tải lên: 06/05/2014, 08:54
ridge aperture antenna array as a high efficiency coupler for photovoltaic applications
... Srigungsitthisunti, and Xu: Ridge aperture antenna array as a high efficiency coupler Fig Results for an aperture array defined by a = 750 nm (a) Reflection from aperture array in comparison to a bare silicon ... Srigungsitthisunti, and Xu: Ridge aperture antenna array as a high efficiency coupler Fig Absorption enhancement in silicon compared with that without the aperture array in near-IR is near zero if no antenna array ... Srigungsitthisunti, and Xu: Ridge aperture antenna array as a high efficiency coupler R A Pala, J White, E Barnard, J Liu, and M L Brongersma, “Design of plasmonic thin-film solar cells with broadband absorption...
Ngày tải lên: 06/05/2014, 08:58
Báo cáo hóa học: " Research Article A Low-Complexity Algorithm for Static Background Estimation from Cluttered Image Sequences in Surveillance Contexts" doc
... containing significant background occlusions, (iii) the true background is available in at least one frame, and (iv) have largely static backgrounds Having the true background allows for quantitative ... use a Gaussian-based background subtraction method where each background pixel is modelled using a Gaussian distribution The parameters of each Gaussian (i.e., the mean and variance) are initialised ... obtained from CAVIAR dataset (http://groups.inf.ed.ac.uk/vision/CAVIAR/CAVIARDATA1/ ), sequences from the abandoned object dataset used in the CANDELA project (http://www.multitel.be/∼va/candela/),...
Ngày tải lên: 21/06/2014, 08:20
Báo cáo hóa học: " Research Article A Family of Key Agreement Mechanisms for Mission Critical Communications for Secure Mobile Ad Hoc and Wireless Mesh Internetworking" pdf
... start with $110$ as candidate address and 001 as mask The first recursive call will try $110$ as candidate address and $000$ as mask and will fail The second recursive call will try $111$ as candidate ... Wireless Systems, Barcelona, Spain, May 2010 [20] I Askoxylakis, K Markantonakis, T Tryfonas, J May, and A Traganitis, A face centered cubic key agreement mechanism for mobile ad hoc networks,” ... Bellovin and Merritt proposed a password authenticated key exchange which operates in the following way (i) A picks a random number, RA calculates P(g RA (mod p)), and A sends A, P(g RA ) to B;...
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: "Research Article A Novel Approach to the Design of Oversampling Low-Delay Complex-Modulated Filter Bank Pairs" doc
... EURASIP Journal on Advances in Signal Processing delay can always be obtained that ranges below the group delay of a corresponding LP FIR filter However, the absolute minimum value of the passband ... minimizes aliasing and imaging The demand for low group delay particularly of the AFB prototype filters has not been asked for explicitly Based on the algorithm [15] the approach [16] introduces additional ... of lowdelay narrow-band FIR prototype filters for oversampling complex-modulated filter banks with an approximately linear-phase frequency response in the passband and the transition bands As the...
Ngày tải lên: 21/06/2014, 19:20
Báo cáo hóa học: " Research Article Low Delay Noise Reduction and Dereverberation for Hearing Aids" pptx
... processed signal In addition, the use of the warped filterbank equalizer causes a significantly lower computational complexity and signal delay than the use of a non-uniform (Bark-scaled) AS FB for speech ... achieve a sufficient stopband attenuation in order to avoid aliasing distortions, which results in a high signal delay For hearing aids, however, an overall processing delay of less than 10 milliseconds ... EURASIP Journal on Advances in Signal Processing while algorithms based on a time-averaging [13] exhibit a high signal delay Coherence-based speech enhancement algorithms such as [14] or [15] can...
Ngày tải lên: 21/06/2014, 22:20
Báo cáo hóa học: "Research Article Efficient Scheduling of Pigeons for a Constrained Delay Tolerant Application" potx
... 40 Arrival rate of messages 50 60 Simulation result Analytical result Deadline (b) Multiple pickup points Average delay of the head message Average delay of the head message Figure 3: Comparison ... consideration of safety for emergency staff and the availability of resources, the headquarter for information precessing and rescue commanding is usually far away from the disaster area As shown in Figure ... EURASIP Journal on Wireless Communications and Networking demands in that area can be satisfied However, another fact is that the pigeons available for the disaster rescue and recovery tasks are...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " Research Article A Low-Complexity LMMSE Channel Estimation Method for OFDM-Based Cooperative Diversity Systems with Multiple Amplify-and-Forward Relays" docx
... [12] F Gao, T Cui, and A Nallanathan, “On channel estimation and optimal training design for amplify and forward relay networks,” IEEE Transactions on Wireless Communications, vol 7, no 5, part 2, ... relays on the MSE and bit error rate (BER) performance alone, these relays are assumed to be distributed in a symmetrical way, for example, the geometric gains GSRi and GRiD for all relays are ... (AWGN) at terminal Ri with zero-mean and variance σn As performing DSTC in the data transmission section, terminal Ri is also assumed to forward a linear function of its received signal vector...
Ngày tải lên: 22/06/2014, 00:20
Báo cáo hóa học: " Research Article DART: A Functional-Level Reconfigurable Architecture for High Energy Efficiency" potx
... elements (PAEs) PAEs are specialized for algorithms of a particular domain on a specific XPP processor core The XPP processor is hierarchical, and a cluster contains a 2D array of PAEs, which can support ... of six the amount of data memory accesses The use of delay chains allows for the exploitation of data temporal locality and skipping a number of data memory accesses In order to compare our results ... Italy, May 1999 [27] T Ojanpera and R Prasad, Wideband CDMA for Third Generation Mobile Communications, Artech House, Norwood, Mass, USA, 1998 [28] E H Dinan and B Jabbari, “Spreading codes for...
Ngày tải lên: 22/06/2014, 19:20
Báo cáo hóa học: "BOUNDEDNESS AND VANISHING OF SOLUTIONS FOR A FORCED DELAY DYNAMIC EQUATION" pot
... Dynamical Systems and Difference Equations with c Mathematica, Chapman & Hall/CRC, Florida, 2002 [12] H Matsunaga, R Miyazaki, and T Hara, Global attractivity results for nonlinear delay differential ... equations, Journal of Mathematical Analysis and Applications 234 (1999), no 1, 77–90 [13] C Qian and Y Sun, Global attractivity of solutions of nonlinear delay differential equations with a forcing ... Journal of Mathematical Analysis and Applications (2006), no 1, 1–14, article [3] D R Anderson, R J Krueger, and A C Peterson, Delay dynamic equations with stability, Advances in Difference Equations...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: "A NOTE ON DISCRETE MAXIMAL REGULARITY FOR FUNCTIONAL DIFFERENCE EQUATIONS WITH INFINITE DELAY" potx
... local unstable manifolds and the local center-unstable manifolds for nonlinear autonomous functional difference equations in phase spaces The results in [16] are based on a representation formula ... Cuevas and C Vidal 11 [11] C Cuevas and C Vidal, Discrete dichotomies and asymptotic behavior for abstract retarded functional difference equations in phase space, Journal of Difference Equations and ... and Applications (2002), no 7, 603–640 [12] S Elaydi, S Murakami, and E Kamiyama, Asymptotic equivalence for difference equations with infinite delay, Journal of Difference Equations and Applications...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " A Low-Complexity KL Expansion-Based Channel Estimator for OFDM Systems" pptx
... derivation of stochastic CRB for Bayesian approach Figure 8: MSE as a function of KL expansion coefficients Since the actual channel statistics and SNR may vary within OFDM block, we have also analyzed ... simulations that recursive MMSE estimator yields better performance than LMS and RLS approaches and achieves Bayesian MSE especially for low SNR For the convergence of the proposed adaptive algorithm, ... mismatch on the estimator performance and shown both analytically and through simulations that the performance degradation due to such mismatch is negligible for low SNR values The MMSE estimator...
Ngày tải lên: 23/06/2014, 00:20