photodetection and measurement - maximizing performance in optical systems

... wereglass.Variations in doping can make minor changes in the bandgap and hence in sensitivity at long wavelengths, either to increase it or to decrease it. In appli-cations using the important ... kTd1IIIpod =- IVVRpdbL= - IesEkTgª - Photodetection Basics 13Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)Copyright © 2004 The McGraw-Hill ... shown in Fig. 2.17 with a 100-MW resistor.Use a small-area, low-capacitance photodiode such as the BPX65. Illuminate it usinga visible LED and current-limiting resistor driven by a square-wave...

Water and energy sustainable management in irrigation systems network

... referee and 102 in International Conferences;Supervisor of several post-doc, PhDs and MSc students and author of 8 innovative real solutions in thedomain of Civil Engineering - hydropower and hydraulic ... Oct-67 Oct-72 Oct-77 Oct-82 Oct-87 Oct-92 Oct-97 Oct-02 Oct-07Storage Volume (millions m3) WeapAquatool Figure 18. Montargil storage volumes 050100150200250Oct-52 Oct-57 Oct-62 ... demand site and flow requirement. 2. Runoff and infiltration from catchments, assuming no irrigation inflow. 3. Inflows and outflows of water for every node and link in the system. This includes...

Báo cáo khoa học: "EXPERT SYSTEMS AND OTHER NEW TECHNIQUES IN MT SYSTEMS " ppt

... methodology by incorporating advanced techniques from software engineering, moving toward third-genera- tion systems by incorporating expert systems, and returning to interactive techniques ... algebraic and less geometric in nature, and we prefer to use a speci- fication in terms of the kind of structures we are accustomed to manipulating. 2 - Grafting o n expert systems Seeing that linguistic ... of using text-driven heuristic strategies. We are now beginning to integrate new techniques : unified design of an "integrated" lexical data-base containing the lexicon in "natural"...

Expressing and Optimizing Sequence Queries in Database Systems pdf

... patterns in a spatio-temporal database [Sadri 2001]. Anotherinteresting problem is to extend SQL-TS to deal with noise, scaling, and simi-larity queries [Raﬁei and Mendelzon 2000]. In terms of performance, ... control the input and the output. The user can specify whether the input is sorted in ascendingor descending order, and whether null values will be listed at the beginningor at the end, using the ... φjk. Furthermore, allthe original GPentries in rows up to and including j − 1 remain unchanged, and so are all arcs leading to entries in these rows.Again we assume that the end nodes of...

Báo cáo hóa học: " Research Article Efﬁcient Compensation of Transmitter and Receiver IQ Imbalance in OFDM Systems" pptx

... initialized by LS or an adaptiveRLS training-based algorithm. Only one training symbol isneeded to initialize Wa[l]. We will refer to this phase-rotatedLTS-based estimation scheme as PR-FEQ.4. ... Renfors, and K. Koivunen, “Compensationof frequency-selective IQ imbalances in wideband receivers:models and algorithms,” in Proceedings IEEE 3rd Workshopon Signap Processing Advances in Wireless ... compensation in (11 )-6 LTSReceiver based D-FEQD-FEQ with pre-distortionJoint compensation in (8)[tarighat], [schenk ]-2 LTSJoint compensation in (11 )-2 LTSNo IQ compensation(a) BER versus...

Báo cáo hóa học: " Research Article Reduced-Rank Shift-Invariant Technique and Its Application for Synchronization and Channel Identiﬁcation in UWB Systems" potx

... narrowband interference(they lack ﬂexibility for removing narrowband interference); and with the number of multipaths increasing, the complex-ity of these algorithms increases rapidly. In [3], ... contain relativelylarger errors according to the Cramer-Rao bounds [16]. In this paper, we present some novel p-rank shift-invariant algorithms, and investigate their applications in joint synchronization ... frequency-selective channelwith rich multipath in practice. Identifying and utilizing thismultipath is a must for achieving satisfactory performance in a UWB receiver. To estimate the numerous and...

Báo cáo hóa học: " Joint Frequency Ambiguity Resolution and Accurate Timing Estimation in OFDM Systems with Multipath Fading" doc

... degree in electronic engineering from Guilin Univer-sity of Electronic Technology, Guilin, in 1986, and the M.S. and Ph.D. degrees in electronic engineering from Xidian Univer-sity, Xi’an, in 1992 ... degree from Uni-versity of Electronic Science and Technol-ogy, Chengdu, China, in 1994 and the M.S.degree from the Guilin University of Elec-tronic Technology, Guilin, China, in 2002.He received ... Electronic Industr y and Guanxi Province Outstanding TeacherAward, China, in 1995 and 1997, respectively. His Ph.D. disserta-tion was awarded the National Excellent Doctoral Dissertation ofChina in...

Báo cáo khoa học: "Combining Acoustic and Pragmatic Features to Predict Recognition Performance in Spoken Dialogue Systems" pdf

... using the learner with default set-tings, which shows the importance of such tuning.Future work points in two directions: first, inte-grating our methodology into working ISU-baseddialogue systems ... be interesting to investigate the im-pact of different dialogue and task features for clas-sification and to introduce a distinction between“generic” features that are domain independent and “application-specific” ... Hypotheses Re-ordering Using Linear Regression. In Proceed-ings of EuroSpeech 2001, pages 1829–1832.William W. Cohen. 1995. Fast Effective Rule In- duction. In Proceedings of the 12th InternationalConference...

Báo cáo hóa học: " Multihop relaying and multiple antenna techniques: performance trade-offs in cellular systems" ppt

... (m) and path type (NLOS/LOS)nr1r2r3r41 500-NLOS - - - 2 333-NLOS 167-LOS - - 3 200-LOS 200-LOS 100-LOS - 4 143-LOS 143-LOS 143-LOS 71-LOSTable 4 SINR: 500 m radius hexagonal cellSINR ... tradeoff when using MIMO and MH relayingjointly. This may seem obvious, since the two techni-ques actually work using conflicting assumptions:MIMO works by exploiting the randomly scatteringchannel, ... transmit beamforming methods. Also,the use of MH relaying shortens the hop distances,which increases the SINR. So although scattering isreduced, SINR is increased. Increasing the SINR pro-vides higher...

ELECTROMOTIVE FORCE AND MEASUREMENT IN SEVERAL SYSTEMS pdf

... 43,804–810.20Electromotive Force and Measurement in Several Systems 10 Will-be-set-by -IN- TECHelectron-disorder scattering. The effects are sometimes called as two-dimensional weaklocalization ... CoSO4·7H2O -8 -6 0 -6 1 EG +2.5 g/l NH4F + 0.15 g/l PcCo -7 -5 8 -5 9 DMSO + 5 % H2O + 0.5 g/l NH4F -1 0 -6 1 -6 2 DMSO + 5 % H2O + 0.5 g/l NH4F + 0,15 g/l CoSO4·7H2O -1 0 -6 1 -6 2 DMSO ... 2004)exp(Tg/T) by (Tg/T)1/3(4.29)16Electromotive Force and Measurement in Several Systems 12 Will-be-set-by -IN- TECH4.3 Single-walled nanotubes (SWNT)Let us consider a long SWNT rolled...

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