modelling and characterization of power electronics converters using matlab tools

... nucleus of the target atom or one of its electrons The total power of a target to stop an ion, or its total stopping power S, is the sum of the stopping power of the nucleus and the stopping power of ... voltage converters 18.6.2 ZVS resonant-switch, dc-to-dc step-up voltage converters 779 Comparison of basic converters Summary and comparison of ZCS and ZVS Converters 780 18.7 Appendix: Matrices of ... pulse power models 1159 1160 Power Electronics xxv Example 25.7: Solid carbon ceramic resistor power rating 25.6 1161 Stability and endurance Example 25.8: Power resistor stability 25.7 Power Electronics...

Ngày tải lên: 06/06/2014, 21:21

... characteristics of programming and retention phenomena of flash memories and explores the effect of new dielectric materials on the memory performance The impact of the dot size of Si and Ge quantum ... The impact of dot size on programming and retention times Fig.7.7 The comparison of e retention time of flash memories with various dielectrics and quantum dots xi List of Tables List of Tables ... Illustrations of (a) direct tunneling and (b) F-N tunneling Fig.3.1 Main routines of 2-D simulator nanoFM-1.0 Fig.3.2 An illustration of self-consistent solution of Schrödinger and Poisson equation...

Ngày tải lên: 26/11/2015, 12:40

... cover made of toughed glass of mm is fixed to the top of vertical walls of the stills using a rubber gasket on both sides of glass and clamp fixed iron frames made of angles A plastic pipe is ... vertical side of still was kept as 0.30 m, whereas the height of higher vertical side was kept 0.85 m The effective basin area of meter x meter made of GRP of m thickness Condensing cover made of toughed ... Simulation result and experimental data In solar still, after evaporation, condensation process starts, and condensation produced by inner glass cover, and difference of temperature of water and glass...

Ngày tải lên: 05/09/2013, 15:28

... morphological property of SiNWs, a FE-SEM observation was carried out after synthesis of SiNWs Fig 1(b) shows the topview (15° tilted) and cross-section (see inset of Fig 1(b)) FE-SEM images of the SiNWs ... at λ b 700 nm [20] The difference of the reflectance might be the effect of synthesis conditions, such as thickness of metal film and SiH4 gas flow The reduction of reflectance is very helpful to ... Therefore, further reduction of the reflectance will be expected from the optimization of the synthesis conditions of SiNWs For analysis of the electrical properties, the I–V curve of the fabricated SiNWs...

Ngày tải lên: 16/03/2014, 15:12

... photomicrographs of fresh and modified fly ash (A and B) SEM of fresh fly ash at 1,000 and 2,500 times magnification, (C and D) SEM of ball milled fly ash for 20 h at 1,000 and 3,000 times magnification, (E and ... F) SEM of ball milled fly ash for 40 h at 1,000 and 3,000 times magnification, (G and H) SEM of ball milled fly ash for 60 h at 1,000 and 3,000 times magnification Fig 10 (A and B) TEM images of fly ... Table Composition of the fresh fly ash (Class F) cl þ cl ð2Þ Subscripts s and l represent solid and liquid states respectively and h represents the contact angle of the liquid and the material...

Ngày tải lên: 22/06/2014, 18:20

... one of the most devastating diseases of wheat in China and worldwide and causing significant yield losses [28] High temperature, often combined with drought stress, causes yield loss and Page of ... biotic and abiotic stresses By using combination of microarray and SBS sequencing, a total of 125 putative long npcRNAs were identified in wheat leaves using strict criteria across a collection of ... proteinase K and DNA was extracted and dissolved in 50 μl of ddH2O Additional file 6: Categories of siRNAs corresponding to SRP1 and SRP3 7S RNA variants and sequences of SRP1 and SRP2 corresponding siRNAs...

Ngày tải lên: 11/08/2014, 11:21

... dermatitis and asthma through skin sensitization, and to further exploit the model for mechanistic studies The first part of this study focused on the cloning and characterization of a new isoform of ... analysis of cDNA coding for Der p 3.3.2 SDS-PAGE analysis of native and recombinant Der p 3.3.3 Presence of isoforms in native Der p 3.3.4 Comparison of IgE reactivity to recombinant Der p and native ... and nonallergenic proteins 5.1 Introduction 5.2 Materials and Methods 5.2.1 Antigens 5.2.2 Sensitization and challenge of mice 5.2.3 Measurement of airway hyperresponsiveness and collection of...

Ngày tải lên: 12/09/2015, 10:54

... of theoretical and experimental tools and techniques, which increases our understanding of matter in both the micro and the nano regimes A typical example is the development of atomic force and ... polymerization); and (ⅲ) the macroscopic precipitation of the polymer is prevented by the presence of a suitable stabilizer The principles of steric stabilization and the use of various types and architectures ... subsequent admixing of divinylbenzene and a radical initiator [146] Polymer layers of poly(vinylbenzyl chloride) (PVBC), copolymers of PDVB-PVBC, and double shells of PDVB and PVBC were also synthesized...

Ngày tải lên: 15/09/2015, 17:10

... Formula and Wave Propagation 18 2.1.3 Paraxial, Fresnel and Fraunhofer Approximations 20 2.1.4 Paraxial, Fresnel and Fraunhofer Approximations Focusing using Low NA Objective Lens 23 Focusing using ... thickness of silicon substrate Schematic design of a mobile DSIL Reflected laser image of subsurface features captured using 1340 nm laser and (a) 20X objective and (b) 50X objective Regions A and ... Plane and RSIL Resolution 123 Field of View of RSIL 128 Chapter Characterization of RSIL for Laser Induced Fault Localization Techniques 133 6.1 TIVA Signal and Resolution Enhancement 133 6.2 Power...

Ngày tải lên: 30/09/2015, 06:19

... parameters and the united atom charges were added using the help of AutoDock tools (Morris, Goodsell et al 1998) Affinity grid maps were constructed via and with the aid of Autogrid program The Vander ... evaluations and the population size was set to 200 The ligand 2D-structures were drawn in ChemDraw and the 3D structures of ligands were constructed with BUILDER module of molecular modelling program ... the whole ligand binding pocket and also allow for rotation and translation of ligands The schematics of computational docking are shown in fig.2.2 36 Figure 2.2: Schematic diagram of Computational...

Ngày tải lên: 02/10/2015, 17:15

... in aptamers on sandwich complex formation and on detection sensitivity, and 3) the possibility of forming sandwich complex with two aptamers of the same sequence With an optimal sandwich design, ... density of the film and the bulk liquid, ηf and ηl are the viscosity of the film and the bulk liquid Since Δf nVoigt and ΔDnVoigt contain the contribution from the bulk liquid, changes in f and D ... nVoigt and ΔDnVoigt are given by n Equation 2-30 and Equation 2-31, respectively, Δf nmeasured and ΔDnmeasured are the experimental data in f and D σ nf and σ nD are the standard deviation for f and...

Ngày tải lên: 03/10/2015, 20:32

... evaluation of food: Principals and practices New York: Chapman and Hall Macfie, H J., Bratchell, N., Greenhoff, H., & Vallis, L V (1989) Designs to balance the effect of order of presentation and first-order ... perceive and describe sensory characteristics of four different types of commercial dry-cured ham using FCP Furthermore and, in order to surmount the inconvenience related to the interpretation of ... ham consumption of the consumers involved in the present study are shown in Table About 44.0% of the consumers were men and 56.0% women and most of them were aged between 20 and 50 (80.7%) The...

Ngày tải lên: 03/04/2013, 21:07

... polysaccharide One milligram of the partially purified polymer contained 309.7 µg of protein, 160.2 µg of neutral sugar, 58.5 µg of hexosamine, 30.8 µg of uronic acid and 3.8 µg of phosphorus Constituent ... concentration of ppm to estimate the effect of pH After min, A660 was measured and the extent of flocculation was calculated Pronase digestion of extracellular polymer Forty milligrams of the extracellular ... determined using the method of Blumenkrantz and Hansen (1973) with a glucuronic acid/galacturonic acid 1:1 standard Hexosamine was determined by the method of Blix (1948) with a glucosamine standard...

Ngày tải lên: 05/09/2013, 09:08

... diameter of the PVDF membrane, the PVDF-PS membrane and the PVDF-SPS membrane is 0.25 µm, 0.12 µm and 0.16 µm, respectively It can be seen that the polymerization of styrene and the blending of PS and ... tissue paper The weight of the membrane was measured using an electronic balance immediately The stability of the membrane was evaluated using the reduction of its weight Results and discussion 3.1 ... (DMAc) firstly, and then styrene, divinylbenzene (DVB) and benzoyl peroxide (BPO) were added to the solution and stirred with water bath at 343 K The dosage of PVDF, styrene, DVB and BPO was that...

Ngày tải lên: 05/09/2013, 16:11

... model, 248 of CCM buck, boost, and buck-boost converters, 292-293 of current programmed converters, 422, 427-428, 434-437, 446 of DCM converters, 387-390, 396-399 of quasi-resonant converters, ... data, 754 Fundamentals of Power Electronics R W Erickson Evaluation and design of converters, 177-183 Experimental techniques measurement of impedances, 312-314 measurement of loop gains by current ... 231-245 of CCM converters, 193-260 of current programmed converters, 418-447 of DCM converters, 382-403 via generalized switch averaging, 390-403 of low harmonic rectifiers, 645-652 of quasi-resonant...

Ngày tải lên: 13/12/2013, 01:15

... concepts of power electronics, including averaged modeling of PWM converters and fundamentals of converter circuits and electronics, control systems, magnetics, lowharmonic rectifiers, and resonant converters ... Fundamentals of Power Electronics http://ece-www.colorado.edu/~pwrelect/book/copies.html (2 of 2) [25/04/2002 16:42:07] Fundamentals of Power Electronics Table of Contents Fundamentals of Power Electronics ... http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (6 of 6) [25/04/2002 16:42:05] Fundamentals of Power Electronics Fundamentals of Power Electronics Second Edition Up To instructors of Power Electronics courses: how to...

Ngày tải lên: 13/12/2013, 01:15

... Electronics: Converters, Applications and Design, John Wiley and Sons, 1995 M.H.Rashid, Power Electronics: Circuits, Devices and Applications, Prentice-Hall International, 1994 C.W.Lander, Power Electronics, ... to the subdivision of power electronic converters into four categories: AC to DC converters (rectifiers), DC to AC converters (inverters), DC to DC converters and AC to AC converters This classification, ... the output of ACDC and DCDC converters (left) and ACAC and DCAC converters (right) 3.2 AC to DC Converters (Rectifiers) Rectification is undoubtedly the most frequently met application of PECs The...

Ngày tải lên: 17/12/2013, 14:15

... The electromagnets were energized using three independent dc power supplies of rating 0–32 V and 100 A The stability of the power supplies was 0·1% The quality of the electromagnets was fully characterized ... system is capable of producing off-resonance, mirror, and flat magnetic field configurations A mirror ratio of 1·1 and a maximum flat field of 1400 G has been obtained The measured values and the design ... varying the size of the solenoid coils, thickness of iron jacket, and amp-turns (NI) The optimum values of NI for the side and middle solenoid coils were obtained to be 12950 and 8250 respectively...

Ngày tải lên: 22/12/2013, 08:58

... evaporation of solvents and volatile products, took place simultaneously with the deposition process, caused the porosity of the TiO2 films Prepareation of TiO2/SnO2: After the material characterization ... concentration of the SnCl4 solution, and the films were annealed at different temperatures and for different period of time Photoconductivity measurement In order to evaluate properties of obtained ... resistance (RD) and the light resistance (RL) under the irradiation of 7W Hg lamp at the distance of 10cm were measured The calculated ratio of RD/RL was considered as a photoconductivity of obtained...

Ngày tải lên: 13/02/2014, 04:20

... tissue of mouse and spleen and thymus of human and mouse [11,37] Foxp3 is also highly expressed in lymphoid organs, such as the thymus and spleen [49], and its expression within a variety of other ... other known sequences using the fasta [25] and blast [26] suite of programs Homology analysis of the amino acid sequences was performed using matgat software v2.02 [75], and multiple sequence ... t-bet, stat6 and foxp3 were also determined and found to be very similar to their human homologues Both the human and zebrafish T-bet and Foxp3 genes contained the same number of exons and introns...

Ngày tải lên: 16/02/2014, 09:20