conversion time for multi channel modes

... the channel utilization For example, assume that under some sensing strategy, if one channel whose state changes quickly has not been sensed for a long time, then SU will not forecast this channel s ... only one channel at a time, then it will tend to sense the channel whose idle probability is high, for the purpose of channel utilization, or the channel whose idle duration is large, for the ... to sense one channel every time Thus per unit time, the energy used for sensing is Es/Ts Therefore, the larger is the sensing period Ts, the less energy will be used for sensing the channels In...

Ngày tải lên: 21/06/2014, 03:20

... performance for −40 and 40 dB and obtain better results for GSR /GRD = dB as in the individual channel estimation case We show the BER performance for GSR /GRD = {−40, 0, 40} dB, as well as for ... BER performances at different channel noise levels for GSR /GRD = {−40, 0, 40} dB in Figure 2(b) We also compare and present our results with the performance of the perfect channel state information ... of timevarying CO-OFDM channels (S → R), (R → D) as well as the cascaded (S → R → D) channels We approach the channel estimation problem from a time- frequency point of view and employ the channel...

Ngày tải lên: 21/06/2014, 16:20

... parallel energy multichannel SE analyser design for a mixed field objective lens based upon the use of Wien filters [1.31] Figure 1.13 shows the schematic layout for this multi- channel secondary ... possibilities of using multi- channel energy spectrometers for other applications inside the SEM other than for voltage contrast and for acquisition of SE spectra are recently emerging For instance, the ... Chapter describes the use of a multi- channel energy magnetic spectrometer design to make a multi- channel mass spectrometer design suitable for use as an add-on attachment for FIB instruments Chapter...

Ngày tải lên: 09/09/2015, 09:59

... advert message to neighbouring nodes Timestamp,t2, Timestamp,ts Timestamp,t2 2 Timestamp,ts Sink Timestamp,ts Sink Sink Helper Helper Timestamp,t3 Timestamp,t3, Timestamp,ts 3 Figure 3.4: (a) Advert ... sink’s time- stamps, each node will match their local time- stamps with the global time- stamps using the message ID A sink’s time- stamp and a corresponding local time- stamp will form a time tuple, ... receiver-receiver based time synchronized sensor nodes: Global time- scale for a receiver-receiver based synchronization RBS uses a time- stamp conversion approach to convert a packet’s timestamp at each...

Ngày tải lên: 02/10/2015, 17:14

... discrete -time signals from all N0 receivers are used for the purpose of channel information estimation and detection 13 2.2 Discrete -time MIMO system model To develop the discrete -time MIMO ... Suppression for quasi-static frequency selective fading channels For transmission over wireless dispersive media, the channel induced ISI is a major performance limiting factor To mitigate such time- domain ... 33 Channel Estimation and Detection for MIMO systems 4.1 Decouple Maximum Likelihood (DEML) 4.2 Channel estimation and Detection for quasi-static flat fading 34 34 channels...

Ngày tải lên: 03/10/2015, 11:37

... medical researchers, and the traveling public Sand and colleagues’ study should serve as a template for future research in this important area Competing interests The author declares that they have ... Evans A; Air Transport Medicine Committee, Aerospace Medical Association: Emergency medical kit for commercial airlines: an update Aviat Space Environ Med 2007, 78: 1170-1171 European Joint Aviation ... Transportation (Aeroplanes), Global Engineering Documents Englewood, USA Page of (page number not for citation purposes) ...

Ngày tải lên: 25/10/2012, 10:06

... It’s time for recess A B 20 20 40 40 60 60 10 10 30 30 50 50 0 Number What you study in Geography class? We study about different countries, rivers, mountains… Number What you in your free time? ... recess of your school • Time • Students’ feeling • Activities • How the yard is HOMEWORK • Write a paragraph about a recess of your school • Do exercise B1/ WB • Prepare for B2,3 GOODBYE ! SEE ... countries, rivers, mountains… Number What you in your free time? Number LUCKY NUMBER Number What time you have English class today? Today we have English class at … Number What you often after...

Ngày tải lên: 29/09/2013, 08:10

Ngày tải lên: 07/12/2013, 10:50

... note that for the overall system, the first choice should be to reinforce two tie lines instead of increasing the generating capacity of the multi- area system coNcLusIoNs A new method for multi- area ... Approach for Multi- Area Reliability Calculations", IEEE Transactions on Power Systems, Vol 5, No 3, Aug 1990 R Billinton and L Gan, "A Monte Carlo Simulation Model for Adequacy Assessment of Multi- Area ... pessimistic appraisal of multi- area system reliability Utilization of derated state models for large capacity generating units provides more optimistic estimation of multi- area system reliability...

Ngày tải lên: 03/01/2014, 19:35

... temperature below 311K (100 F) For the most severe postulated accident, the volume of water in the cavity provides a passive ultimate heat sink for or more days, permitting time for restoration of the ... Transient Performance As noted, the transient performance characterization was performed with an input file containing an early steam generator tube bundle configuration, and therefore the following ... would provide a path for cooling the primary system Such an effective heat transfer mechanism may obviate the need for a sump makeup valve Therefore, a calculation was performed to evaluate the...

Ngày tải lên: 16/01/2014, 22:20

... probabilities for each wi by p(wi ∈ om ) = nd (wi ∈ om )/nD (wi ), where nd (wi ∈ om ) is the number of times wi appears in d and nD (wi ) is the number of times wi appears in D For any ith feature, ... f-input features f1 f2 f3 fq h(f,y) : regression model for sentence ranking Figure 3: Flow diagram for Hybrid Learning Algorithm for Multi- Document Summarization Conclusion parametric inference ... unigram probabilities for each wi ∈ vf req with pD (wi ) = |V | nD (wi )/ j=1 nD (wj ), where nD (wi ) is the number of times wi appears in D and |V | is the total number of unigrams For any ith feature,...

Ngày tải lên: 20/02/2014, 04:20

... the desired general level of granularity For each set of annotations, we therefore performed two sets of segmentations: one in which the threshold was set for each meeting to give the known goldstandard ... performance (Barzilay and Lee, 2004), although similar benefits might equally apply to our model It also performs comparably to (Galley et al., 2003)’s unsupervised performance (exceeding it for ... Shriberg and Andreas Stolcke for providing automatic speech recognition data for the ICSI corpus and for their helpful advice; John Niekrasz and Alex Gruenstein for help with the NOMOS corpus...

Ngày tải lên: 20/02/2014, 11:21

... technology domains Sometimes, existing words are transformed in order to denote new concepts; also, numerous neologisms are created or borrowed from other languages A frequent type of multi- word constructions ... given inflectional paradigm A number of 25 inflection classes have been defined for Greek nouns, 11 for verbs, and 10 for adjectives 46 Figure 1: Screen capture of the parallel concordancer, showing ... proportion of the lexicon of a language, and are crucial for many NLP tasks (Sag et al., 2002) This section introduces the tool we developed for augmenting the coverage of our monolingual/bilingual...

Ngày tải lên: 22/02/2014, 02:20

... complicated and time consuming, while processing time is tended to be minimized In general, processing time of a multi- channel system depends on the data access time and the processing time of the ... Mathematics - Physics 26 (2010) 1-8 In practice, many systems require a multi- channel signal processing In these systems, multiplexers/ de-multiplexers with synchronous signals and a phase lock loop are ... the data access time and the processing time of the processing unit For an analog multi- channel access, ADC is normally used For data processing, the processing unit could be developed based on...

Ngày tải lên: 05/03/2014, 14:20

... Sensors Motiv Beh Motiv Beh Inter-Robot Communication cross-inhibition Control Schematic for CMOMMT, in ALLIANCE Formalism t Gab&sX2pâĐ&YĐYe#Ê&dD&YdppdhaYYdhsGb9s`rCâapph#Y#pihVI2php&Câaê9spdâ#~fsfr ... Ê    Ê ă Ư Ô Ê Ă F"@RâQP'7ÂA29'"Đ7'47â50Ơ)320ÂÂ"('IHÂ)Ư ƠĐÂGâĐÂÂƠ p Magnitude of force vector Distance between robots -1 dr1 dr2 Robot-Robot PX r &@pqẹ E D Ư   % Ư C B %  Ê ...    Ê ă Ư Ô Ê Ă F)Đâ)&â7ÂA@9)Đ707â54Â)320ÂƠ)('&$Â"Ư ÂĐƠâĐƠ e Magnitude of force vector Distance between robot and target -1 do1 do3 do2 predictive tracking range Robot-Target...

Ngày tải lên: 05/03/2014, 15:20

... the 24-hour time was assigned a value of for being only in group A, and the value was multiplied by for the two wells in the group The 24-hour time in table was assigned a value of 1.5 for being ... compounds is their loss from the sample before analysis To be conservative, we defined the optimal time for sampling for volatile organic compounds as the time when their concentrations were greatest ... sampling time for volatile organics This is consistent with the findings of Gibs and Imbrigiotta (1990), who showed that field parameters are unreliable for determining vec sampling time for groundwater...

Ngày tải lên: 05/03/2014, 21:20

... limited application drugs for less common diseases that are only promoted to health care professionals, and hospital and organizational formulary committees (such as HMO formulary committees) The ... that consumers could get more information about the drug (e.g give a web site, a 1-800 number or refer to a print ad for the same product which contained the same information) and tell consumers ... charge more for both products and services Smith (2003), referring to an Australian study, found that online pharmacies often lacked important information about contraindications for medications...

Ngày tải lên: 06/03/2014, 21:20

... the features of (Shen et al., 2007) for fairness For the thresholds used in the contextual factors, we enforce τlq to be equal to τls and τuq equal to τus for the purpose of simplifying the parameters ... problems First we define a complex multi- sentence question as a question with the following properties: Definition: A complex multi- sentence question is one that contains multiple sub-questions In the ... designs for sites and edges embedded in discussion thread structures However there is no previous work that explores the complex multi- sentence question segmentation and its contextual modeling for...

Ngày tải lên: 07/03/2014, 18:20

... some alternative rules (-y + ies), etc A set of tense forms, such as past, present and future forms, are also transformed into original forms These tokenlized sequences will improve extraction ... a gap only by length information Longer gap means more irrelative unit It builds a rough penalty model for lack of semantic information We improve this model by POS information POS tagged textual ... as consistent set for further multiple sequence alignment These consistent sets collect similar sequences with score greater than certain threshold We perform star-alignment in multiple sequence...

Ngày tải lên: 08/03/2014, 02:21

... variant of the MMAXQL query language It offers a simpler and more concise way to formulate certain types of queries for multi- level annotated corpora Queries are automatically converted into the underlying ... Allen, James (1991) Time and time again International Journal of Intelligent Systems, 6(4):341–355 Bird, Steven, Peter Buneman & Wang-Chiew Tan (2000) Towards a query language for annotation graphs ... toolkit: flexible annotation for multi- modal language data Behavior Research Methods, Instruments, and Computers, 35:353–363 Cassidy, Steve & Jonathan Harrington (2001) Multi- level annotation in...

Ngày tải lên: 08/03/2014, 04:22