properties and applications of fiber gratings

... by Use of Nickel and Tantalum from a Materials Science Point of View 171 Yu Cao and Lars Nyborg Other applications: Electrical, Structural and Biomedical 195 Properties and Applications of Ceramic ... termination of photo-excitation After (a Savchenko et al., 2009) 10 Properties and Applications of Silicon Carbide Illumination of the samples with interband light of wavelength ... for a variety of applications. In this book, we explore an eclectic mix of articles that highlight some new potential applications of SiC and dierent ways to achieve specic properties. Some

Ngày tải lên: 20/06/2014, 04:20

... instant of time. The value of the first derivative was calculated as the right-hand side of rate equations (3), and that of the second derivative, as the derivative of the right- hand side of Eqs. ... instant of time. The value of the first derivative was calculated as the right-hand side of rate equations (3), and that of the second derivative, as the derivative of the right- hand side of Eqs. ... charge states of ISi and IC in 4H-SiC are the same as those in 3C-SiC, the ranges of m and n in Eqs (1a) and (2a) are limited to m ∈ {0, 1, 2, 3, and 4} and n ∈ {0, ±1, and 2} Boron

Ngày tải lên: 20/06/2014, 04:20

... INVESTIGATION OF NEW PROPERTIES AND APPLICATIONS OF QUADRUPLEX DNA AND DEVELOPMENT OF NOVEL OLIGONUCLEOTIDEBASED TOPOISOMERASE I INHIBITORS WANG YIFAN NATIONAL UNIVERSITY OF SINGAPORE 2008 ... of the distinctive properties of DNA is the elastic properties of double strand DNA (dsDNA) which leads to desired bending... Polymorphism of G -quadruplex Structures One of ... Structure of DNA 10 10 1.3.1. Discovery of i-Motif Form of DNA 11 1.3.2. Stoichiometries and Topologies of i-Motif DNA 11 ii 1.3.3. Possible Biological Role of i-Motif Structure of DNA

Ngày tải lên: 11/09/2015, 16:04

... A STUDY OF PROPERTIES AND APPLICATIONS OF CONTROL CHARTS FOR HIGH YIELD PROCESSES PRIYA RANJAN SHARMA (B Eng., REC, Jalandhar, India) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... National University of Singapore for offering me a Research Scholarship and President’s Graduate Fellowship, and the Department of Industrial and Systems Engineering for the use of its facilities ... credit and others who lend their invaluable support and guidance, and remain unknown The successful completion of this dissertation, also, was made possible only with the support and guidance of

Ngày tải lên: 15/09/2015, 20:57

... i Table of Contents TABLE OF CONTENTS ACKNOWLEDGEMENTS TABLE OF CONTENTS STATEMENT OF RESEARCH PROBLEM SUMMARY LIST OF TABLE LIST OF FIGURES AND ILLUSTRATIONS LIST OF SYMBOLS AND ABBREVIATIONS ... ELECTROCHEMICAL PROPERTIES AND APPLICATIONS OF CONDUCTING POLYMERS IN CORROSION SCIENCE TAN CHEAK KHAN, WILLY (B.Sc. (Hons), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSCOPY DEPARTMENT OF ... (a) oxidation of the species, which crosses the pores of the polymeric layer and forms a layer of passivated material stopping the progress of the corrosion; (b) the formation of a passivated

Ngày tải lên: 16/09/2015, 15:55

... band gap of polyarylenes was a strong function of molecular geometry.15 Often,... nearly vertical to the azulene ring The 248 torsion angle of the seven-membered ring of azulene and ... chloroform and re-precipitating in methanol. GPC analysis showed a number-average molecular weight of 6,900 and 8,100 for PAzBzC8 and PAzBzOC8 respectively. These corresponded to a chain lengths of ... occupied molecular orbital of the 239 acceptor, and hence resulting in reduction of the band gap in these materials Following this strategy, a number of low-band gap materials have been

Ngày tải lên: 17/09/2015, 17:19

... materials.9-12 Thus, to have a better understanding of the polymer structure and properties, we prepared the single-crystals of a series of monomers and oligomers containing azulene unit. To further ... spectrum of Oligoa, Oligob, and MonoO6. Structural Analysis Structure of Monoa and Monob. Single crystal of 1,3-dithienyl-azulene (Monoa) and 1,3-di(3-methylthienyl)-azulene (Monob) were obtained and ... Figure 6-13. Thermogram of (a), P3 and its hybrids, (b), P4 and its hybrids. Optical and electrical properties studies The UV/vis absorption spectra of our polymers and hybrids are shown in

Ngày tải lên: 17/09/2015, 17:19

... candidates because of their high thermal and environmental stability both in neutral and doped states, variety of molecular designs and wide range of potential applications. The properties of ... range of conductivity, processability, and stability depending on the type of substituents, rings, and ring fusion. The wide potential technological use of PTs implies profound modulations of the ... and properties of the polymers in order to meet the specific requirements of each type of envisioned application. 1.1. The conductivities of conjugated polymers The most important aspect of

Ngày tải lên: 17/09/2015, 17:19

... STRUCTURES, PROPERTIES, AND APPLICATIONS OF SOLUBLE POLYAZULENE AND AZULENECONTAINING COPOLYMERS WANG FUKE (M Sc, Fudan Univ.) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ... advice and friendship. Thanks also go to Ms. Tan G. K. of the X-ray Diffraction Lab of Department of Chemistry for her assistance in analysis of the single crystal structures, all staff of Central ... polymes-inorganic hybrids 22 iii 4. Azulene and Polyazulenes 26 4.1. Unique structure and interesting properties of azulene 27 4.2 Recent application of azulene and its derivatives in materials science

Ngày tải lên: 17/09/2015, 17:19

... STUDIES OF NEW PROPERTIES AND APPLICATIONS OF G-QUADRUPLEX DNA NG TAO TAO MAGDELINE B.Sc. (Hons.), NUS A THESIS SUBMITTED FOR THE DEGREE OF THE MASTER OF SCIENCE DEPARTMENT OF CHEMISTRY NATIONAL ... replication. The degradation of the primer on the lagging strand and the action of a putative 5' to 3' exonuclease lead to shortening of the 5' end of the telomere and the formation of a 3'-end overhang ... G-Quadruplexes. (A) All strands parallell. (B) Three parallell strands and one strand antiparallell. (C) Two pairs of adjacent parallell strands. (D) Alternating antiparallell strands. Arrows indicate

Ngày tải lên: 16/10/2015, 12:00

... Mechanical Properties and Applications of Additively Manufactured Thermoplastic Polyurethane Material A thesis submitted in fulfilment of the requirements for the degree of Master of Engineering ... appreciation to my former teacher Mr Ercüment Görgül, who introduced me to Professor Xie personally and offered me a lot of help and advice in my career I am thankful to Nanjing Ameba Engineering Structure ... 3.6 Illustration of sieve analysis 24 3.7 Stress-strain curves of specimens printed in three different directions 25 3.8 Average and standard deviation of the results:

Ngày tải lên: 12/02/2023, 10:02

... mechanism of SiC by comparing it with that of Si 78 Properties and Applications of Silicon Carbide Experimental procedure ¯ 4H-SiC (0001) C-face and (0001) Si-face epitaxial layers with 8◦ off-angles ... Si+3HCl Chlorination of SiH3: SiH3+3HCl  SiHCl3+ (5/2)H2 (6) 62 Properties and Applications of Silicon Carbide Chlorination of SiH3CH3: SiH3CH3+3HCl  SiCl3CH3 + 3H2 (7) Chlorination of Si2H6: Si2H6+6HCl ... involves first Step (A) and then the repetition of Steps (B) and (C) Figure is the process for low temperature deposition and evaluation of the film, consisting of Steps (A), (D) and (E) Step (D) is...

Ngày tải lên: 20/06/2014, 04:20

... FM- and AFM-ordered supercells containing a pair of TM 104 Properties and Applications of Silicon Carbide atoms This is the amount of energy needed to flip the spin of one of these atoms and ... bandgap diluted magnetic semiconductors, including a family of III-nitrides and ZnO, had spun a great deal of interest to magnetic properties of these materials The resulting 90 Properties and ... understanding and prediction of the properties of this complex class of materials Silicon carbide is another wide bandgap semiconductor which has been considered a possible candidate for spin electronic applications...

Ngày tải lên: 20/06/2014, 04:20

... features of the equation of state of solids J Phys.: Condens Matter, 1, pp 1941-1963 Wang, W.; Takano, F.; Akinaga, H & Ofuchi, H (2007) Structural, magnetic, and magnetotransport properties of Mn-Si ... εra, μra of ambient air Magnitudes εrSiC = Re (εrSiC) - Im (εrSiC) and 118 Properties and Applications of Silicon Carbide μrSiC = Re (μrSiC) - Im (μrSiC) are the complex permittivity and the complex ... and S , i.e μ+ (s j )  μ  (s j ) The h h (2) (2) magnitude H0 is the Hankel function of the zeroth order and of the second kind, H1 is SiC SiC the Hankel function of the first order and of...

Ngày tải lên: 20/06/2014, 04:20

... characterization of chemical and biological agents and materials, remote and standoff early-warning for chemicalbiological warfare threats, and imaging of concealed weapons and explosives, just ... potential payoffs of THz sensing and imaging for an array of military, security and industrial applications These applications include the spectroscopic-based detection identification and characterization ... 1.38 and 0.472, respectively The location of p-n junction is found to be 0.99μm The location of Ge layer is 1.28 μm Fig Electric field profiles of 3C-SiC THz IMPATTs 158 Properties and Applications...

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... Part Other applications: Electrical, Structural and Biomedical Properties and Applications of Ceramic Composites Containing Silicon Carbide Whiskers 197 X Properties and Applications of Ceramic ... time (min) Fig Depth profiles of a) NiSi2; b) NiSi and c) Ni2Si derived from successive ion etchings and analysis of the Si 2p and Ni 2p3/2 levels in XPS The content of C, O and Si from the surface ... insights The goal of this chapter is to distill the most 198 Properties and Applications of Silicon Carbide significant results of the literature and create a big-picture description of these materials...

Ngày tải lên: 20/06/2014, 04:20

... percolation of the filler particles and the fractal nature of filler distribution in non- 204 Properties and Applications of Silicon Carbide whisker particulate composites and related it to the ac and ... breakage of interatomic bonds and frictional sliding also increase the work of fracture 210 Properties and Applications of Silicon Carbide One study (Iio et al., 1989) showed that the inclusion of ... whisker defects Many of these will be considered in this section, and a discussion of interface effects and SiCw defects is given in Section 3.8 Properties of the Al2O3 and sintering additives...

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... active oxidation of SiC and contemporary partial evaporation of SiO2 240 Properties and Applications of Silicon Carbide a b Fig SEM micrographs of a) cross-section and b) surface of the sample ... flow and the evolution of the ratio IO/IAr, where IO and IAr are the intensities of oxygen and argon emission spectral lines respectively, is measured along the 242 Properties and Applications of ... programs 260 Properties and Applications of Silicon Carbide Methodology The methodology of the investigation was based on laboratory tests and visual inspection of the internal components of the surge...

Ngày tải lên: 20/06/2014, 04:20

... moisture and (d) gap electrode: signs of discharge 270 Properties and Applications of Silicon Carbide (a) (b) (c) (d) Fig Surge arresters of manufacturer C, (a) block surface: presence of moisture, ... (b) Fig 10 Waveforms of the leakage current (blue) and of the applied voltage (yellow), (a) CT in the position and (b) CT in the position 272 Properties and Applications of Silicon Carbide The ... manufacturers A and C, respectively As a general conclusion, it was observed that the surge arresters of manufacturers A and C presented evidence of ingress of moisture and signs of discharges...

Ngày tải lên: 20/06/2014, 04:20

... human fibroblasts and osteoblasts (Naji and Harmand, 1991) and open porosity of these materials make them great candidates for biomedical applications Biomedical applications of SiC Silicon carbides ... porosity and an adequate pore size are necessary 310 Properties and Applications of Silicon Carbide to facilitate cell seeding and diffusion throughout the whole structure of both cells and nutrients ... theoretical and experimental study of pyrrole-functionalized Si- and C-terminated SiC surfaces Recent experimental 318 Properties and Applications of Silicon Carbide studies on surface biofunctionalization...

Ngày tải lên: 20/06/2014, 04:20