White Cross Mills, Hightown, LANCASTER LA1 4XS, United Kingdom.
Telephone: +44(0)1524 68765
Fax: +44(0)1524 63232
Email: sales@gazellebooks.co.uk
Web: www.gazellebooks.co.uk
| ANALYTICAL MODELS OF THERMAL STRESSES IN COMPOSITE MATERIALS I [Ladislav Ceniga] This book is the first volume of the trilogy Analytical models of thermal stresses in composite materials I, II, III , presenting, in each of the volumes, genuine results only created by the author. The fact that the author proceeds from fundamental equations of Mechanics of Solid Continuum confirms the genuineness of the results and accordingly establishment of new scientific school with an interdisciplinary character belonging to the scientific branch Applied Mechanics. As an imagination considered for the analytical models, an elastic solid continuum is represented by a multi-particle-(envelope)-matrix system consisting of components represented by spherical particles periodically distributed in an infinite matrix, without or with a spherical envelope on the surface of each of the spherical particles. The multi-particle-(envelope)-matrix system with different distribution of the spherical particles is considered as a model system for a determination of the thermal stresses in real composite materials with finite dimensions included in the categories. { March 2008; PB, £104.50, 1604560851:9781604560855 , Nova Science } |
| BIOPOLYMER RESEARCH TRENDS [Tamás S Németh (ed)] Biopolymers are a special class of polymers produced by living organisms. Starch, proteins and peptides, DNA, and RNA are all examples of biopolymers, in which the monomer units, respectively, are sugars, amino acids, and nucleic acids.A major but defining difference between polymers and biopolymers can be found in their structures. Polymers, including biopolymers, are made of repetitive units called monomers. Biopolymers inherently have a well defined structure: The exact chemical composition and the sequence in which these units are arranged is called the primary structure. Many biopolymers spontaneously fold into characteristic compact shapes (see also "protein folding" as well as secondary structure and tertiary structure), which determine their biological functions and depend in a complicated way on their primary structures. Structural biology is the study of the structural properties of the biopolymers. In contrast most synthetic polymers have much simpler and more random (or statistic) structures. This book presents leading-edge research from around the world in this dynamic field. { February 2008; HB, £104.50, 1600219837:9781600219832 , Nova Science } |
| DETERMINATION OF PESTICIDES & RELATED CHEMICALS IN GRAINS & CEREALS [Guo-Fang Pang, Yong-ming Liu,Yan-Zhong Cao, Chun-Lin Fan, Yu-Jing Lian, Feng Zheng, Jin-Jie Zhang, Xue-Min Li & Zeng-Yin Li (eds)] This book features a systematic study conducted regarding the mass spectrometric characteristics of GC-MS and LC-MS-MS and GPC behaviours characteristics for 858 pesticides, and a GC-MS analytical database was established for 541 pesticides, a LC-MS-MS analytical database for 629 pesticides and a GPC behavioural characteristic database for 751 pesticides. Under the GC-MS and LC-MS-MS optimised analytical conditions based on these database, a series of the comparison testes were completed. 486 pesticides and related chemicals in 5 kinds of grain samples such as wheat, barley, rice, maize and oats were pre-treated by ASE extraction and SPE cleanup as well as 465 pesticides were pre-treated by homogeneous and shaking extraction and GPC cleanup. A GC-MS analytical method has been established for determination of 475 pesticides in grains and cereals, and same as LC-MS-MS analytical method for determination of 372 pesticides and related chemicals. { March 2008; PB, £31.50, 1604561629:9781604561623 , Nova Science } |
| DIRECT FLUORINATION OF POLYMERS [A P Kharitonov] In this book fundamental features and industrial applications of the direct fluorination of polymers are reviewed. Direct fluorination of polymers (i.e. treatment of a polymer surface with gaseous fluorine and its mixtures) proceeds at room temperature spontaneously and can be considered as a surface modification process. The author of the current book and his co-authors have studied the direct fluorination of more than 20 polymers (polystyrene, polyethyleneterephthalate, poly(2,6-dimethyl-1,4-phenylene oxide), polymethylmethacrylate, low density polyethylene (2 types), high density polyethylene (6 types), polyvinyltrimethylsilane, poly(4-methyl-pentene-1), polyimide Matrimid„¥ 5218, polysulfones, polyetheretherketone, polycarbonatesiloxane, polysulphone-polybuthadiene block-copolymers, polypropylene, PVF, PVDF, etc.). A large variety of experimental methods, such as FTIR spectroscopy, visible and near UV spectroscopy, Electron Spin Resonance spectroscopy, laser interference spectroscopy, refractometry, electron microscopy, method of surface energy measurement, gas-chromatography, method of measurement of permeability of liquids through polymer materials, etc. was applied. Fundamental features of the direct fluorination, such as influence of treatment conditions (composition of the fluorinating mixture, fluorine partial pressure, temperature and fluorination duration) on the rate of formation, chemical composition, density, refraction index and surface energy of the fluorinated layer, kinetics of formation of radicals during fluorination and their termination, texture of fluorinated layer, etc. were studied. On the base of obtained experimental data a theoretical model of the direct fluorination of polymers was developed. It was demonstrated experimentally, that the direct fluorination can be effectively used to enhance commercial properties of polymer articles, such as barrier properties of polymer vessels, bottles and packaging, gas separation properties of polymer membranes and mechanical properties of polymer-based composite materials. Data on a fundamental research and commercial applications provided by other research groups are reviewed. { May 2008; PB, £31.50, 1604562072:9781604562071 , Nova Science } |
| LEADING-EDGE COMPOSITE MATERIAL RESEARCH [Tobias G Wouters (ed)] This book presents new and significant research progress on composite materials which are engineered materials made from two or more constituent materials with significantly different physical or chemical properties and which remain separate and distinct on a macroscopic level within the finished structure. Fibre Reinforced Polymers or FRPs include Wood comprising (cellulose fibres in a lignin and hemicellulose matrix), Carbon-fibre reinforced plastic or CFRP, Glass-fibre reinforced plastic or GFRP (also GRP). If classified by matrix then there are Thermoplastic Composites, short fibre thermoplastics, long fibre thermoplastics or long fibre reinforced thermoplastics There are numerous thermoset composites, but advanced systems usually incorporate aramid fibre and carbon fibre in an epoxy resin matrix. Composites can also utilise metal fibres reinforcing other metals, as in Metal matrix composites or MMC. Ceramic matrix composites include Bone (hydroxyapatite reinforced with collagen fibres), Cermet (ceramic and metal) and Concrete. Organic matrix/ceramic aggregate composites include Asphalt concrete, Mastic asphalt, Mastic roller hybrid, Dental composite, Syntactic foam and Mother of Pearl. Chobham armour is a special composite used in military applications. Engineered wood includes a wide variety of different products such as Plywood, Oriented strand board, Wood plastic composite (recycled wood fibre in polyethylene matrix), Pykrete (sawdust in ice matrix), Plastic-impregnated or laminated paper or textiles, Arborite, Formica (plastic) and Micarta. Composite materials have gained popularity (despite their generally high cost) in high-performance products such as aerospace components (tails, wings , fuselages, propellors), boat and scull hulls, and racing car bodies. More mundane uses include fishing rods and storage tanks. { March 2008; HB, £104.50, 1600219950:9781600219955 , Nova Science } |
| LIFETIMES OF FLUORINATED COMPOUNDS [Kazuaki Tokuhashi, Liang Chen, Kenji Takizawa, Akifumi Takahashi, Tadafumi Uchimaru, Masaaki Sugie, Shigeo Kondo, Akira Sekiya] Rate constants for reactions of 11 hydrochlorofluorocarbons and 12 hydrofluorocarbons were measured by means of the absolute rate method over the temperature range 250-430 K. OH radicals were generated by flash photolysis, laser photolysis, or a discharge flow methods; and the concentration of OH radicals was monitored by means of the laser-induced fluorescence technique. The fluorinated compounds were purified by gas chromatography; impurities remaining in the samples after purification were found to have no sizeable effect on the measured rate constants. The Arrhenius rate expressions were determined from the kinetic data obtained in this study as well as from available literature data. A method for estimating rates of reactions with OH radicals using an artificial neural network method was developed. An algorithm for a back-propagation method for determining optimised weights was developed for cases in which the reactivities of individual reaction sites of a molecule are not known. The ability of the neural network method to predict rate constants was evaluated by using the leave-one-out method. Rate constants for 94 compounds, including hydrocarbons, hydrofluorocarbons, hydrochlorofluorocarbons, hydrochlorocarbons, and brominated compounds, were calculated within a factor of 2. { May 2008; PB, £31.50, 1604562064:9781604562064 , Nova Science } |
| PROGRESS IN BIOPOLYMER RESEARCH [Pablo C Sánchez (ed)] This book presents new and important research on biopolymers which are a special class of polymers produced by living organisms. Starch, proteins and peptides, DNA, and RNA are all examples of biopolymers, in which the monomer units, respectively, are sugars, amino acids, and nucleic acids.A major but defining difference between polymers and biopolymers can be found in their structures. Polymers, including biopolymers, are made of repetitive units called monomers. Biopolymers inherently have a well defined structure: The exact chemical composition and the sequence in which these units are arranged is called the primary structure. Many biopolymers spontaneously fold into characteristic compact shapes (see also "protein folding" as well as secondary structure and tertiary structure), which determine their biological functions and depend in a complicated way on their primary structures. Structural biology is the study of the structural properties of the biopolymers. In contrast most synthetic polymers have much simpler and more random (or statistic) structures. { 276pp, 180x260mm, February 2008; HB, £104.50, 1600219845:9781600219849 , Nova Science (Nova Biomedical) } |