Browsing by Discipline
Now showing items 41-60 of 75
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Some studies of dielectric relaxation
(1973)A general correlation function is firstly reviewed in line with Kubo's formulation (Chap. 1, (a)), and dielectric relaxation processes together with some fundamental properties are considered with the help of the function ... -
Speciation of aqueous hypercoordinated organosilicate complexes / by Jiali Wen.
(2007, c 20)Aqueous silicon chemistry plays a major and as yet unappreciated role in many fields of science. Emerging technologies such as the fabrication of biomimetic ceramics require a thorough understanding of all factors affecting ... -
Structural determinations by analytical analysis of 7-phosphanorbornadiene derivatives and amino acid enantiomers
(2000)The purpose of Chapter 1 is to create a bicyclic, two-coordinate phosphorus derivative in the form of a 2,3-benzo-l,4,5,6-tetraphenyl-7-phosphanorbomadiene anion and measure its experimental 3,P NMR chemical shift. This ... -
Structure and mobility of lignin in relation to pulp washing and bleaching
(1997)The roles of molecular size and structure were investigated in relation to the extent of peroxide bleaching and lignin adsorption on pulp. Structural analysis of components from effluents generated by peroxide bleaching ... -
Structure and reactivity studies of simple phospholes
(1977)Newer techniques of phosphole synthesis, particularly those which lead to simple phospholes substituted with active functional groups, are briefly surveyed. A detailed account of chemical, physico-chemical, spectroscopic ... -
Studies in Group VIII metal-phosphine-tetrahydroborate chemistry
(1976)Co(I) and nickel(T) complexes containing both bidentate and monodentate tetrahydroborate have been prepared from the reductions of divalent metal compounds in the presence of triphenylphosphine with ethanolic sodium ... -
Studies in the coordination chemistry of phospholes
(1977)The chemical, physicochemical, theoretical and metal coordination studies of phospholes which have so far appeared in the literature are reviewed briefly with particular reference to the electronic structure of the ... -
Studies of the catalytic activities and resistance to sulphur poisoning of P-3 nickel and P-3 cobalt borides
(1976)The heterogeneous liquid-phase catalytic hydrogenation of alkenes over partially hydrogenated P-3 nickel and P-3 cobalt borides has been investigated. -
Studies on the decomposition of alcohols on metal oxide catalysts
(1982)The catalytic decomposition of 2-propanol has been investigated by a micropulse reactor technique in the temperature range from 461 to 547 K on nickel oxide and alumina doped nickel oxide. Nickel oxide is active for the ... -
Studies related to the chemistry and environmental persistence of methoxychlor and its derivatives
(1983)An Investigation of some of the chemical and biological factors Influencing the environmental fate of methoxychlor ( 1 , 1, 1-trichloro-2,2-bis (p-methoxyphenyl) ethane) has been conducted. Methoxychlor is an organochlorine ... -
Study of heteroaromatic enediyne and substituted benzothiophene synthesis with a study of unusual H NMR signals in neomenthyl halides
(2004)The synthesis of a number of heteroaromatic enediynes has been examined using the Sonogashira coupling reaction. Alkynes were coupled to 2,3-dibromothiophene to yield a number o f hetero- and homo-disubstituted enediynes. ... -
Study of heteroaromatic enediyne and substituted benzothiophene synthesis with relative reactivity of substituted aryl iodides in the Sonogashira reaction
(2006)Enediyne compounds have captured the imagination of chemists since their discovery as a class of natural products. Because of their cytotoxicity, these compounds are not suitable for use in cancer treatment. As a result, ... -
Study of the effect of gamma irradiation on cellular metabolism by nuclear magnetic resonance spectroscopy
(2005)The phenomenon of NMR plays an important role in a number of different scientific and medical fields. Nuclear magnetic resonance has the ability to detect changes in tumour, and cell metabolism caused by both chemotherapy ... -
Synthesis and biodegradation of model compounds related to hydrocarbon-type dielectric fluids
(1981)Uniroyal PA0-20E, an oligomer of 1-octene, is a dielectric fluid proposed as a replacement for polychlorinated biphenyls. No studies on its biodegradation have been reported in the literature to date. This thesis ... -
Synthesis and characterization of donor-acceptor oligothiophenes
(2005)The field of organic conductors is multidisciplinary in nature. This thesis introduces and characterizes new conducting materials based on heterosubstituted oligothiophenes. Substituted bithiophenes, terthiophenes, and ... -
Synthesis and cytotoxic activity of diosgenyl saponin analogues
(2008)Saponins are naturally occurring glycosides that are widely distributed in the plant kingdom and lower marine organisms. Saponins consist of a carbohydrate chain attached to either a steroid or triterpene aglycone. Diosgenyl ... -
Synthesis and electrochemical study of Pd- and Pt- based nanostructured materials
(2011)We are currently facing climate change and global warming effects due to the emission of greenhouse gases from our existing energy sources. Proton exchange membrane fuel cells are one of the most efficient alternatives ... -
Synthesis and electrochemical study of Pt- and IrO2-based nanostructured materials
(2006)With ever increasing awareness that our environment is being ravaged at an alarming rate and the very seriously high rate of diabetes, there has been much research into understanding, controlling and reversing these ... -
Synthesis and electrochemical study of PtIr nanomaterials
(2008)Nanomaterials have a number of unique chemical and physical properties and have attracted tremendous attention due to their potential for applications in a variety of areas including fuel cell and biosensor development. ...