solar cells research and application perspectives

... Audio, Speech, and Music Processing Volume 2010, Article ID 654914, 12 pages doi:10.1155/2010/654914 Research Article Development of the Database for Environmental Sound Research and Application ... Sound Research and Application (DESRA—website: http://www.desra.org/) which aims to collect, label, edit 2 EURASIP Journal on Audio, Speech, and Music Processing when necessary, norm, evaluate, and ... some being continuous and harmonic (a cow mooing), some continuous and inhar- monic (wind blowing), some impulsive and inharmonic (basketball bouncing), and some impulsive and harmonic (ice dropping...

Ngày tải lên: 21/06/2014, 16:20

... land and salt affected areas in Vietnam 1.2.1 Salt affected land The land consists of 50-60% ratio of argillaceous The land shows high tight level and poor absorbent level, tought patter, and ... Trang 1MINISTRY OF EDUCATION AND TRAINING MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT VIETNAM ACADEMY OF AGRICULTURAL SCIENCES DONG THI KIM CUC “Research and application of molecule markers ... Liem, Hanoi); and the Center of Technological Exchange and Extension (Thanh Tri, Hanoi), and Giao Thuy, Nam Dinh Province Time period: From 2010 to 2013 5 Significant Contribution Application...

Ngày tải lên: 07/07/2014, 21:30

... cutting processes and tools for the specific materials and operating conditions Research objective To investigate physical sense of the best vibrational drilling conditions and adapt it for effective ... different vibration modes; 3 Design and implementation of vibrational drilling equipment and research methodology; 4 Development of numerical model for dynamical research of vibration cutting tool ... advantages for difficult-to-cut materials Research methods The research work was carried out by using both analytical and experimental methods Theoretical research is based on classical theory of...

Ngày tải lên: 24/11/2017, 23:42

... systems for terrestrial applications such as combined heat and power (CHP) However, scrubbing and gas cleanup methods have advanced in tandem to FC development that now render AFC applications viable ... to impurities and require very pure hydrogen and oxygen to function reliably Due to this, they are ideally suited for space and underwater applications where pure tanked oxygen and hydrogen is ... performance of an AFC and PAFC running with similar H2/O2 fuel and oxidant and at a similar controlled current density of 100 mA cm−2, at the same temperature of 70 °C, and with similar platinum...

Ngày tải lên: 30/12/2017, 17:47

... and consumption of electrons occurs Combined heat and power (CHP) An application of fuel cells (or other types of power plants) where waste heat produced during power production is used for applications ... earliest fuel cells to be deployed commercially are the molten carbonate fuel cells (MCFCs), which are high-temperature fuel cells that operate with a variety of fuels with high efficiency and very ... fuels with high efficiency and very low emissions Research and development on the system has been conducted since the 1950s, and demonstration and commercialization activities were underway by...

Ngày tải lên: 30/12/2017, 17:49

... MINISTRY OF EDUCATION AND TRAINING VIETNAM ACADEMY OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY - TRINH XUAN DUC RESEARCH AND APPLICATION OF AMMONIA ... THE RESEARCH NECESSITY OF THE THESIS The demand for clean and hygienic water is always a top concern and has become a strategy of many countries including Vietnam Currently, the living standard ... ensure clean water standard for eating and drinking purposes, suitable with the investment ability and operational conditions in Vietnam 2.2 Contents of Research (1) Collect data and survey the current...

Ngày tải lên: 09/01/2020, 15:21

... bio-carriers and integrate the tanks in modular form Trang 12CHAPTER 2 SUBJECT AND RESEARCH METHODOLOGY 2.1 Scope and subject of the research The scope of the reasearch is Hanoi groundwater The research ... clean water standard for eating and drinking purposes, suitable with Trang 5the investment ability and operational conditions in Vietnam 2.2 Contents of Research (1) Collect data and survey the ... THE RESEARCH NECESSITY OF THE THESIS The demand for clean and hygienic water is always a top concern and has become a strategy of many countries including Vietnam Currently, the living standard...

Ngày tải lên: 15/01/2020, 10:42

... where x1, x2 and x3 are input quanti‐ ties, u ( x1), u ( x2) and u ( x3) are their respective uncertainties and y and u ( y ) are the measurand and its uncertainty, re‐ spectively; and b) propagation ... facilitate research and new applications of MCS Having a background in industrial engineering and operations research, I found it useful to see the different usages of MCS in other fields Methods and ... of (3) and (4), and the highest of (5) and (6), i.e it is the worst fit The types of distributions worth using are mostly the lognormal distribu‐ tion (having the lowest AIC and BIC), and the...

Ngày tải lên: 16/03/2014, 12:20

... is accepted If ΔE > 0, a random number between and is generated and the attempted reorientation is accepted if this random number is smaller than the probability p, and otherwise, the old orientation ... (a) and (b) The susceptibility of (a) diverges around temperature kBT=1.0 and the magnetic property shows ferro-magnetism The direction of the 546 Applications of Monte Carlo Method in Science and ... [100] and [110] directions for the cylindrical cluster using H1=HJ+HD+HA_macro+HB including the macroscopic anisotropy and H2=HJ+HD+HA_micro+HB 548 Applications of Monte Carlo Method in Science and...

Ngày tải lên: 29/06/2014, 13:20

... Carlo simulation and applications is growing exponentially The utilization of Monte Carlo methods, simulations and applications, is found in widely disparate fields and areas of application such ... efficiency is reduced Every application demands a different trade-off between efficiency and spatial resolution The generation, absorption and propagation of visible light in media and on material borders ... tweezers related research and applications Since optical tweezers has broad applications in colloidal sciences, biophysics, nanotechnology etc., Monte Carlo simulation will find its applications in...

Ngày tải lên: 29/06/2014, 13:20

... probability and statistics and see how these are used in thermodynamics in order to deeply understand natural and engineered phenomena? What are the likelihood, chances, and probabilities in nature? Applications ... particles, on membrane surfaces by Kim and Hoek (2002) and Chen et al (2005), and a comprehensive review can be found elsewhere (Chen and Kim, 2006) Concluding remarks and perspectives With more than a ... M Laso, and U Suter Simulation of polyethylene above and below the melting point J Chem Phys., 96(3):2395–2403, 1992 D Earl and M Deem Parallel tempering: Theory, applications, and new perspectives...

Ngày tải lên: 29/06/2014, 13:20

... time and coherence bandwidths Then, by using time and frequency interpolation, the impulse response and frequency response of the channel can be calculated Figure 2.7 Pilot positioning in time and ... With Wireless Applications Sergio Benedetto and Ezio Biglieri Simulation of Communication Systems, 2nd Edition: Methodology, Modeling, and Techniques Michel C Jeruchim, Philip Balaban, and K Sam ... elsewhere The book concludes with descriptions of three very important and diverse applications of OFDM that have been standardized and are now being deployed ADSL provides access to digital services...

Ngày tải lên: 02/03/2013, 16:58

... (Chapters and 9) Part 4: Advanced CT Imaging and Analysis (Chapters 10 to 14) Part 5: CT Imaging and Analysis for Non-Medical Applications (Chapters 15 and 16) Parts to are devoted to theories and applications ... pre-processing stages, detection of candidates and classification Nodule candidates were found by through multiple thresholding and, next, using shape and density attributes and discriminant linear analysis, ... continuously been used for many applications, especially in medical fields This book discloses recent advances and new ideas in theories and applications of CT imaging and its analysis The book contains...

Ngày tải lên: 28/06/2014, 06:20

... Theory and Applications of OFDM and CDMA Theory and Applications of OFDM and CDMA Wideband Wireless Communications Henrik Schulze and Christian Luders ¨ Both of Fachhochschule ... and vice versa For strictly band-limited baseband signals, Equation (1.40) states the following equivalence between baseband and passband transmission: we consider the detector for the baseband ... x(t) and y(t) as √ (1.37) x(t) = cos (2πf0 t) [ (t) ∗ x(t)] ˜ and √ y(t) = − sin (2πf0 t) ˜ (t) ∗ y(t) (1.38) We write x(t) = I {x(t)} and y(t) = Q{y(t)} or, shorthand, x = I x and y = Qy and...

Ngày tải lên: 09/08/2014, 19:22

... are random variables that are statistically independent and identically distributed for different values of k To be more specific, the random phase θk is assumed to be independent of νk and τk and ... error probability as two-dimensional and introduce polar coordinates AWGN is a Gaussian random variable with mean zero and variance σ = The probability that the random variable exceeds a positive ... sine wave will not be present in the passband signal Since, in general, every passband signal of a certain bandwidth may have both components, 50% of the bandwidth resources remain unused A simple...

Ngày tải lên: 09/08/2014, 19:22

... length, but it is not necessary, and the length is not determined by the code Theory and Applications of OFDM and CDMA  2005 John Wiley & Sons, Ltd Henrik Schulze and Christian L¨ ders u 94 CHANNEL ... E {S} = L , where again we have used the shorthand notation L = L(S = +1) Now let S1 and S2 be two independent random signs and define S = S1 · S2 and write L1 , L2 , L for the corresponding LLRs ... rate Rc and Hamming distance dH Assume ˆ that s corresponds to a code word c and the receiver decides for a code word c corresponding ˆ ˆ to the signal vector s, and the code words c and c have...

Ngày tải lên: 09/08/2014, 19:22

... corresponding to DC in the complex baseband and to the center frequency fc in the passband, with negative k for the lower sideband and positive k for the upper sideband For reasons of symmetry, we may ... matched to the channel and parallelize the given data stream in an appropriate way Theory and Applications of OFDM and CDMA  2005 John Wiley & Sons, Ltd Henrik Schulze and Christian L¨ ders u ... communication can be found in (Massey 1992) and (McEliece and Swanson 2001) A concatenated coding scheme with an inner convolutional code and an outer RS code has been standardized for deep space communications...

Ngày tải lên: 09/08/2014, 19:22

... this field (see (Banelli and Baruffa 2001; D’Andrea et al 1996) and references therein) 4.3 Synchronization and Channel Estimation Aspects for OFDM Systems 4.3.1 Time and frequency synchronization ... intuitively clear and it can easily be visualized by ∗ means of the vector space structure of random variables Then E el xm is the scalar product of the random variables (vectors) el and xm , and E{|el ... Europe and in Canada It uses Band III (174–240 MHz) and L-band (1452–1492 MHz) frequencies In many European regions, the TV channel 12 (223–230 MHz) has been allocated for DAB For f0 = 225 MHz and...

Ngày tải lên: 09/08/2014, 19:22

... most likely error event are spread randomly over the time Tframe and the bandwidth B Thus, the diversity branch spectrum is a random vector To eliminate this randomness, we average over an ensemble ... digital video broadcasting system DVB-T and the wireless LAN standards IEEE 802.11a and HIPERLAN/2 Coding and modulation are closely connected in such systems and they must be carefully fitted together ... to = 2δ and = δ, both with equal probability ˆ If the bit under consideration is the LSB, = δ for ID and EX and any value of the MSB It follows that = δ with probability 3/4 (ID and EX) and = 3δ...

Ngày tải lên: 09/08/2014, 19:22