[en] Treatment of cotton fibers has been studied in air and oxygen plasma and the treatment time, nature and flow rate of the gas, and plasma power have been varied. In order to establish the chemical effect of plasma treatment on cotton fibers the flowing tests have been performed: Cuprammonium fluidity test, weight lose measurement, determination of carboxyl groups indentification, Ftir analysis and measurement of the Astm yellowness of the untreated and cotton fabrics. In addition, vertical wicking studies and effect of the plasma treated samples on the rate and the amount of day uptake have been investigated. The plasma treatment lead to surface erosion of cotton fibers which generates a weight loss, accompanied by increase fiber carboxyl group and carbonyl group contents. The increase in fiber carboxyl group content leads to more wet table fiber and the rate of fabric vertical wicking is increased. The direct dye (chloramine fast red K) uptake of treated samples increases almost linearly with the increase in fiber carboxyl group content caused by plasma treatment, but progressively decreases with increase the ageing time after oxygen plasma treatment. Ageing after plasma treatment also increase the fabric yellowness

[en] Data on the methods for the synthesis and properties of 1,2,3-dithiazoles published over the last 15 years are reviewed and described systematically

[en] The dehydrogenation of cycloalkanes can be effected under mild conditions in the presence of a group VIII C-H bond activation catalyst and an uranium hydrogen sponge. The reaction between a cyclohexane substrate and active uranium, U*, in the presence of the group VIII catalyst quantitatively yields UH₃ and the corresponding aromatic hydrocarbon. The uranium hydride UH₃ is subsequently heated to evolve hydrogen gas and regenerate U*. The physical separation of the catalyst from the uranium sponge prevents the sintering of the uranium metallic particles. The addition of titanium hydride, as a diluent, to the uranium also aids in maintaining the uranium in a highly dispersed state

[en] The discovery by researchers that the physio-chemical properties of a substance can be influenced by size led to a realization of the importance of Nano particles. Due to its excellent characteristics, these materials have been a source of interest for researchers in multidisciplinary fields. The morphological features of nanoparticles always garner prodigious attention because of the influence morphology has over most of the Nanoparticles’ properties. This review provides insight to the morphological characterization and physio-chemical of its properties. (paper)

[en] The method of production of materials by out-furnace process of self-propagating high temperature synthesis (SHS), flowing in the conditions of action of centrifugal force, is developed presently. The primary purpose of working is achievement high level of generating of energy and use of it for forming of steady meta-stable crystalline phases with an uncommon set of physical and chemical properties. (paper)

[en] Major tendencies in modern chemistry of alkali and transition metal phospholides (phosphacyclopentadienides) are systematized, analyzed and generalized. Basic methods of synthesis of these compounds are presented. Their chemical properties are considered with a special focus on their complexing ability. Potential applications of phospholides and their derivatives are discussed. The bibliography includes 184 references

[en] A project study for the final disposal of high-level radioactive wastes in deep geological formations, carried out on behalf of Nagra has shown that bentonite could serve as backfilling and sealing material for the final repository concept foreseen by Nagra. Subsequently, the Institute for Foundation and Ground Mechanics of the ETH-Zurich was charged by Nagra with the investigation of various bentonites. The investigations concentrated on the Na-bentonite MX-80 from Wyoming, which is favoured by the Swedes, and on the geographically more favourable Ca-bentonite Montigel from Bavaria. The mineral composition, surface, exchange capacity and exchangeable ions, charge distribution and density of both bentonites have been investigated

[en] Figs 20 - 30 are placed after Table XXVIII at the end of this section.

[en] The reaction between RuH₂(dppm)₂ (dppm = bisdiphenyl phosphinomethane) and Mo(CO)₆ at 80⁰ C in toluene produces MoRu (CO)₆(dppm)₂ (1) which exists in three different interconvertible forms whether in solution, recrystallized from toluene (1a) or THF (1b). The crystal structure of (1a) shows the complex to contain a long Mo-Ru distance (3.058 (1) A) and a semi-bridging carbonyl group. (1) loses reversibly CO in vacuo and react with H₂ and CF₃COOH. RuH₂(dppm)₂ also reacts with half an equivalent of Mn₂(CO)₁₀ in toluene at 100⁰ C to give two complexes

[en] A primary aim of the programs in superconductivity at Cornell is to improve the basic understanding of underlying physical and chemical processes. Possible applications are often major considerations as well. Included in the article are descriptions of practical devices or techniques that are close to commercial use. Several patents have already been issued. The following summaries of research programs provides an overview of the current activity in superconductivity at Cornell