Occurrences and Resources of China Clay in India
(1970). Occurrences and Resources of China Clay in India. Transactions of the Indian Ceramic Society: Vol. 29, No. 3, pp. 15N-20N.
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Generation and relaxation of lattice vibrations in cadmium sulphide
The amplitude of lattice vibrations in a crystal of cadmium sulphide has been measured, as a function of the electric field applied to the crystal, by use of a Mossbauer scattering technique. The increase in amplitude which occurs for fields greater than the critical field is clearly demonstrated, and the interpretati…
Atomistic Simulation of Sintering Mechanism for Copper Nano-Powders
<p>The sintering mechanisms of nanoscale copper powders have been investigated. A molecular dynamics (MD) simulation with the embedded-atom method (EAM) was employed for these simulations. The dimensional changes for initial-stage sintering such as characteristic lengths, neck growth, and neck angle were calcula…
Cytotaxonomy of Two Species of the Genus <i>Hippeastrum</i> (Amarillidaceae)
The caryotype of H. bicolor and H. igneum coincides in number and morphology (2n=16); satellites are born by submetacentric chromosomes at the fourth couple.In some cells of H. bicolor small satellites were found at the second couple, as heterozygotic character.
Investigation of Ball Size Effect on Microstructure and Thermoelectric Properties of <italic>p</italic>-type BiSbTe by Mechanical Alloying
<p><italic>P</italic>-type ternary Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub> alloys are fabricated via mechanical alloying (MA) and spark plasma sintering (SPS). Different ball sizes are used in the MA process, and their effect on the microstructure; hardness,…
INVESTIGATION INTO THE CAUSES OF PREMATURE CORROSION OF PRE-FABRICATED STEEL FACTORY BUILDING
Premature corrosion of steel roof panels of a prefabricated factory building was reported just two months’ after installation. In order to find out the causes of this corrosion, physical investigation of the affected roof was carried out and samples of the panels and relevant information were collected. Laboratory tes…
Solid 'liquid-crystalline' films of synthetic polypeptides: a new state of matter
Abstract
Green Synthesis and Characterization of Antibacterial Studies by Iron Oxide Nanoparticles using Carica papaya Leaf Extract
In present years, the synthesis of iron oxide nanoparticles (IONPs) has established excessive potential in biological applications due to their non-toxic role in biological systems, biocompatibility, and biodegradability. Ongoing research efforts focused on IONPs in the expansion of novel technologies as they can be s…
Tensile Properties of Pandanus Atrocarpus based Composites
Pandanus atrocarpus, or locally known as mengkuang plant is likely to be potential natural fibre reinforcement in composite. Both the Pandanus leaves, and fibres extracted from the Pandanus leaves were used in composite fabrication. Fibres were extracted from Pandanus leaves with water retting process. Pandanus compos…
¿Existen especies de Navicula (Bacillariophyta) exclusivas de ambientes de alta montaña en Argentina?
Con el objetivo de analizar la distribución geográfica de 28 especies del género Navicula Bory sensu stricto identificadas en humedales de alta montaña en Argentina, se consultaron cinco catálogos disponibles, publicaciones no incluidas en esas obras y datos recabados en relevamientos inéditos realizados por nuestro e…
Effects of Hydrogen Reduction in Microstructure, Mechanical and Thermoelectric Properties of Gas Atomized <italic>n</italic>-type Bi2Te2.7 Se0.3 Material
<p>The recent rise in applications of thermoelectric materials has attracted interest in studies toward the fabrication of thermoelectric materials using mass production techniques. In this study, we successfully fabricate <italic>n</italic>-type Bi<sub>2</sub>Te<sub>2.7</sub>…
Electron Microscopy of Rubber
Abstract In conclusion we must point out that the basic text book for this subject is C. H. Leigh-Dugmore's “Microscopy of Rubber”. Unfortunately parts of this excellent book need extending to cover modern developments some of which have been reviewed in this paper.
Investigation of Wear Behaviour of Sewn Assemblies of Viscose Linings with Different Treatment
Different types of chemical treatment of textile are widely applied in advanced textile. Finishing of textile can provide additional functional properties for products or/and to improve the appearance of final product as well as to improve their mechanical properties. In this research the influence of the industrial t…
Antimicrobial Compounds from the Rihzomes of <i>Sansevieria hyacinthoides</i>
Three known compounds were isolated from the n-hexane extract of the rihzomes of Sansevieria hyacinthoides, they were two steriods; β- sitosterol (1) and daucosterol (2), and a flavonoid; isokaemferide (3). The structures of the compounds were elucidated on the basis of NMR spectral analysis as well as comparison with…
Peroxides of elements other than carbon. Part XVII. Reaction of tri-2-norbornylboranes with neutral hydrogen peroxide
The reaction between three epimeric tri-2-norbornylboranes and neutral 30% aqueous hydrogen peroxide at 25° has been investigated in the absence and presence of iodine and of carbon tetrachloride. Whereas norbornane, 2,2′-binorbornane, norbornyl iodide, and norbornyl chloride are produced through an intermediate norbo…
Heat stability of chemically crosslinked polyethylene
Abstract Heat stability in air of chemically crosslinked polyethylene loaded with medium thermal (MT) carbon black was studied as a function of temperature and carbon black content. Weight loss at 200° to 250°C is practically independent of the carbon black concentration. Modulus–temperature curves are changed with va…
Roles of Alloying Elements on the Corrosion Behavior of Amorphous W–Zr–(15–33)Cr Alloys in 1 M NaOH Solution
Roles of alloy-constituting elements on the corrosion behavior of the sputter-depositedamorphous W-Zr-(15-33)Cr alloys was studied in 1 M NaOH solution open to air at 25°Cusing corrosion tests and open circuit potential measurements. Zirconium and chromiummetals act synergistically with tungsten in enhancing the corro…
Magnetic susceptibility anomaly in nearly equiatomic MnNi alloys
Abstract The crystallographic and magnetic properties of nearly equiatomic nickel–manganese alloys have been investigated by X‐ray and neutron diffraction techniques as well as by classical susceptibility measurements. It has been found that the antiferromagnetic–paramagnetic phase transition takes place in most of th…
Optical and Electrical Characteristics of CdO thin films deposited by Spray Pyrolysis Method
Cadmium oxide (CdO) thin films have been deposited by a locally developed spray pyrolysis method onto glass substrate at 473K. The optical and electrical properties of the as-deposited and annealed films are studied in details. The surface morphology of the samples was studied by scanning electron microscopy (SEM). Th…
The assignment of the vibrational frequencies of the SO3Cl− Ion
Abstract The Raman spectra of HSO 3 Cl in CH 3 COOH and NaSO 3 Cl in N,N ‐dimethylacetamide are recorded. From these spectra the SO 3 Cl − frequencies are reassigned. The new assignment is in agreement with the Raman spectra of solid (CH 3 ) 4 N · SO 3 Cl, SCl 4 · SO 3 , SeCl 4 · SO 3 and TeCl 4 · SO 3 .