Phase Solubility Analysis
(1970). Phase Solubility Analysis. C R C Critical Reviews in Analytical Chemistry: Vol. 1, No. 2, pp. 193-215.
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Etch Pits and Crystal Structure of Tellurium
Abstract E. Takimoto The shapes of the asymmetric etch pits produced by slow action of hot sulfuric acid on the cleavage planes of tellurium crystals have been investigated, and a microscopic model is proposed for the formation of the etch pits. The handedness of the spiral chains and the positive direction of the x ‐…
Green synthesis of silver nanoparticles from seed extract of Brassica nigra and its antibacterial activity
Abstract. Pandit R. 2015. Green synthesis of silver nanoparticles from seed extract of Brassica nigra and its antibacterial activity. Nusantara Bioscience 7: 15-19. We report the green synthesis of silver nanoparticles using seed extract of Brassica nigra. UV-visible spectroscopic analysis showed the absorbance peak a…
Reactions of polyolefins with strong lewis acids
Abstract Treatment of a cyclohexane solution of low density polyethylene and polystyrene with anhydrous aluminum chloride causes chemical reaction between the two polymers which results in the formation of a graft copolymer. The initial copolymer‐forming reaction is very rapid, and prolonged contact of the polymers wi…
Intrinsic Optical Properties of CrCl3
Abstract The intrinsic optical absorption spectrum of CrCl 3 has been investigated in the 0.6 to 6 eV region at temperatures from 80 to 300 °K. A careful analysis of the crystal field bands in the 0.6 to 3 eV region has revealed some structures and details, such as an Urbach's rule edge, not previously reported. The o…
The Defect Structure of Non‐Stoichiometric Germanium Telluride from Magnetic Susceptibility Measurements
Abstract The room temperature magnetic susceptibility of non‐stoichiometric GeTe has been measured; by calculating the contributions of the free carriers and the ionic lattice using the appropriate formulae and the known parameters of the system, the contribution to the susceptibility of the lattice defects has been o…
Radiation-Hardening and Recovery in Mild Steels and the Effects of Interstitial Nitrogen
The effects of interstitial nitrogen on the hardening produced in mild steels by irradiation at 50° C (323 K) to doses up to 2·6 × 1018 n/cm2 (fission) have been investigated. These studies were performed using annealed silicon-killed steel with a finite concentration of nitrogen in solution, annealed silicon-killed s…
Investigation of mechanical properties of luffa cylindrica fibre reinforced epoxy hybrid composite
In this present work, the effect of stacking sequence on mechanical properties of untreated luffa cylindrica and glass fibre reinforced epoxy hybrid composites has been investigated experimentally. Composite laminates were fabricated by hand lay-up technique. All the composites were made with a total of 4 plies, by va…
The Corrosion of Titanium Carbide
In , the anodic dissolution of titanium carbide begins at about 0.8V ( SHE ). Trivalent titanium ions could not be detected in the nitrogen‐ saturated solution, although this does not rule out the possibility that Ti(III) is formed in the dissolution reaction. However, at 0.8V oxidation to Ti(IV) would readily occur.…
Sensitivity of Fish Pathogenic Bacteria to Various Medicinal Herbs
The sensitivity of certain local medicinal herbs was evaluated against pathogenic Aeromonas hydrophila, Pseudomonas fluorescens and Edwardsiella tarda bacteria of fish during the period from April 2001 to March 2002. A suspension of freshly cultured experimental bacteria (2 x 107 CFU / ml) was prepared and 0.1 ml of t…
Experimental Devitrification Rate of Rhyolite Glass
Research Article| February 01, 1970 Experimental Devitrification Rate of Rhyolite Glass GARY LOFGREN GARY LOFGREN Geology Branch TH2, NASA Manned Spacecraft Center, Houston, Texas 77058 Search for other works by this author on: GSW Google Scholar Author and Article Information GARY LOFGREN Geology Branch TH2, NASA Man…
Visible absorption spectra of substituted ferricenium cations
The magnitude of the extinction coefficient and the shift on substitution show that the band at 16,200 cm–1 in the absorption spectrum of Fe(C5H5)2+, which formerly was attributed to a 3d–3d ligand-field transition, is due to a ligand-to-metal e1u→e2g charge-transfer transition.
Magnetic Properties of Several Phases of Barium Orthoferrate, BaFeOx
Various barium orthoferrates over wide Fe 4+ concentrations were prepared and their magnetic properties were investigated. The hexagonal phase with large Fe 4+ concentration is ferromagnetic above the anomaly point. With increasing Fe 3+ , it tends to be antiferromagnetic. The cubictetragonal phases are paramagnetic w…
Rheological and Mechanical Properties of Poly(lactic) Acid/Cellulose and LDPE/Cellulose Composites
In our work we studied composites of poly(lactic) acid (PLA) and low density polyethylene filled with cellulose fibres. The studied composite materials were manufactured with a twin-screw extruder. The extruded compound was processed in to samples using compression moulding. The content of cellulose in polymer/cellulo…
Electronic Structure of PbS, PbSe, and PbTe
Abstract The electronic band structures of PbS, PbSe, and PbTe have been calculated using the relativistic Green's function method. The choice of a relativistic atomic potential for Pb and of nonrelativistic atomic potentials for S, Se, and Te inthe muffin‐tin spheres results in similar band models for the lead salts.…
Self-Diffusion during Plastic Deformation
Attention is directed to the uncertain state-of-affairs surrounding the influence of plastic deformation on concommitant tracer-diffusivity in metals. We now offer some clarification of this elusive solid-state transport problem.It is concluded that strain-enhanced diffusion is a real phenomenon, and in fact, it can b…
Effects of Process Parameters on Tensile Strength of Jute Fiber Reinforced Thermoplastic Composites
For Environmental concern on synthetic fibers (such as glass, carbon, ceramic fibers, etc.) natural fibers such as flax, hemp, jute, kenaf, etc. are widely used. In this research work, jute fiber reinforced polypropylene matrix composites have been developed by hot compression molding technique with varying process pa…
Glass Transitions in Polymers
Abstract We hope that the preceding presentation has made it clear that the glass transition is not a simple phenomenon, but a very complicated process which is still not understood in all of its ramifications. The nature of the glass transition temperature ( T g ), to begin with, has been the source cf considerable c…
Theory of anisotropic plates : strength, stability, and vibrations
Fundamental equations of the theory of elasticity of an anisotropic body the refined theories of anisotropic plates determination of the stress state and the strains of plates some problems of vibrations and stability of plates some estimates of the refined theories.
Further studies of the dynamic scattering mode in nematic liquid crystals
Evaluation of fabrication procedures and operating life have indicated that moisture can play a major role in determining the performance of nematic liquid crystal displays based on the dynamic scattering mode (DSM) in anisylidene-p-aminophenyl-acetate. There is strong evidence that the presence of moisture promotes e…