Zscheme SnO2 xgC3N4 composite as an efficient photocatalyst for dye degradation and photocatalytic CO2 reduction

... then the two keys (N-grams) are equal 4.3 Searching for a Record We construct a B+ -tree for each N-gram file in the dataset for N = 2, 3, 4, 5, and keep the key of the first N-gram for each file in ... A lexicographical sort for a position p, for ≤ p ≤ (N − 1) is performed by moving all the tokens in positions (p − 1) to the end for each N-gram in the data set Thus, for al...

Ngày tải lên: 07/03/2014, 22:20

... makes negligible impact on thesaurus entries 1.3 Available thesauruses Thesauruses of the kind described are publicly available on the Sketch Engine server (http://www.sketchengine.co.uk) based ... grammatical context, against the background of how other words of the same word class behave We have implemented histograms like these in the Sketch Engine for a range of word class...

Ngày tải lên: 31/03/2014, 01:20

... considers the proportional differentiated admission control under finite network resources Following this way, we get explicit formulas for PDAC problem The proposed formulas deliver high-performance computing ... Thus, an efficient method for proportional differentiated admission control implementation has been provided 20 Approximation accuracy 10 0.8 0.7 0.6 0.5 0.4 500 Ackn...

Ngày tải lên: 21/06/2014, 05:20

... Jiang, and E Sejdic, “Instanc c taneous frequency estimation using the S-transform,” IEEE Signal Processing Letters, vol 15, pp 309–312, 2008 [23] P L Shui, H Y Shang, and Y B Zhao, Instantaneous ... “Estimating and interpreting the instantaneous frequency of asignal II Algorithms and applications,” Proceedings of the IEEE, vol 80, no 4, pp 540–568, 1992 [4] E Bedrosian, “A produ...

Ngày tải lên: 21/06/2014, 07:20

... In AAAI, pages 412–418 C Kruengkrai, K Uchimoto, J Kazama, Y Wang, K Torisawa, and H Isahara 2009 An error-driven word- character hybrid model for joint chinese word segmentation and pos tagging ... on POS taging The proposed constrained taggers as described above can achieve near state-of-art POS tagging accuracy in a much more efficient manner 5.4 Chinese word segmenta...

Ngày tải lên: 07/03/2014, 18:20

... 1997, Finite- State Transducers in Language and Speech Processing, Computational Linguistics, 23:2, 1997 Mehryar Mohri, Fernando C.N Pereira, and Michael Riley, 2000, Weighted Finite- State Transducers ... authors would like to thank Andre Altmann for his help with the translation experiments References Alfred V Aho and Jeffrey D Ullman, 1972, The Theory of Parsing, Translation...

Ngày tải lên: 23/03/2014, 19:20

... low switching activity Therefore, most of existing encodings for address buses and data memory data buses not suit for encoding of the instruction data buses Since there are some bits on the instruction ... data memory (DM) are separated, and each memory has different buses for address and data transmission, as illustrated in Figure We want to reduce switching act...

Ngày tải lên: 21/06/2014, 20:20

... Systems, Man and Cybernetics Part C, vol 38, no 2, pp 145–155, 2008 [4] X Zhou and B Bhanu, “Integrating face and gait for human recognition at a distance in video,” IEEE Transactions on Systems, Man, ... 896–903, 2006 D Tao, X Li, X Wu, and S J Maybank, “General tensor discriminant analysis and gabor features for gait recognition, ” IEEE Transactions on Pattern Analysis and Machine In...

Ngày tải lên: 21/06/2014, 20:20

... Computation of performance indices i Here we show how the performance indices Pmn , for any node Si , can be computed when the performance indices, j i pmn of its observation and the performance indices ... 0.8 0.85 0.9 0.95 Precision of sensors PF for CV-FT PD for WAS PF for WAS PD for Counting PF for Counting PD for 2-CV PF for 2-CV PD for CV-VT PF for CV-VT PD for CV-...

Ngày tải lên: 21/06/2014, 23:20

... standard could handle thousands of devices in an Asian metering product [2] N-DIMENSIONAL ADDRESSING SCHEME AND ITS ROUTING ALGORITHM (3, 255) 1023 (2, 5) 517 Figure 5: Tree-based addressing and ... TRAACS algorithm and traditional Cskip based tree-based routing algorithm for ZigBee network The Cskip algorithm assumes two network parameters, Cm and Rm A perfo...

Ngày tải lên: 21/06/2014, 23:20

... Figures and for the DCT and the DWT domains, respectively As can be seen, for images form DB2 and DB3, the BER is lower for the proposed technique than that for the conventional one in the case of ... Figures and 6, the proposed technique outperforms the conventional one, even without applying any attack Another point that should be raised is the influence of...

Ngày tải lên: 22/06/2014, 00:20

... Therefore, a1 and −a∗ are transmitted from the first transmit an2 tenna, and a2 and a∗ are transmitted from the second trans1 mit antenna during the first and second transmission periods, respectively ... channel gains corresponding to two transmit antennas with h1 and h2 , respectively Let the dummy symbols to be transmitted during the first two transmission periods be a1 and a2 Therefore, a...

Ngày tải lên: 22/06/2014, 06:20

... mean of the ARE of all sink nodes We generate 100 connected network instances for each simulation and spawn multirate queries in each network instance for 100 times The average performance for ... optimizing the number of replicas for event information in wireless sensor networks, when queries are disseminated using expanding rings The authors also derived the replication st...

Ngày tải lên: 22/06/2014, 19:20

... Therefore, a1 and −a∗ are transmitted from the first transmit an2 tenna, and a2 and a∗ are transmitted from the second trans1 mit antenna during the first and second transmission periods, respectively ... channel gains corresponding to two transmit antennas with h1 and h2 , respectively Let the dummy symbols to be transmitted during the first two transmission periods be a1 and a2 Therefore, a...

Ngày tải lên: 22/06/2014, 19:20

... hidden information only in instantaneous amplitude, the instantaneous phase, and/or the instantaneous frequency Using the higherorder statistics makes higher performances for fault detection systems ... types are the mean and the next three moments of the instantaneous characteristics They used different classifiers and showed that the artificial neural network has better performance than K-ne...

Ngày tải lên: 22/06/2014, 20:20