Browsing Chemistry by Title
Now showing items 47-66 of 106
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Heavy Metal Contaminated Food Crops Irrigated with Wastewater in Peri Urban Areas, Zambia
(Scientific Research, 2013-07)Studies on peri urban farming in Zambia have not adequately tackled the issues pertaining to heavy metal contaminated wastewater irrigation farming. The study investigated heavy metal contamination of water, soils and ... -
High Performance Oil Resistant Rubber
(Scientific Research, 2012-10)Blending of polymers has gained much interest due to the fact that, it can be used to produce new polymeric materials with specific properties suitable for some special applications. The blends from acrylonitrile butadiene ... -
Hydrogen from Sunlight Water Splitting: Is It Our Future?
(Scientific Research, 2013-10)Environmental pollution and the growing need to find new sources of energy are some of the challenges of our century. The unstoppable growth of population, the increasing energy needs of emerging countries, and the ... -
Hydroxy- and Aminoethyl Imidazolines of Cottonseed Oil Fatty Acids as Additives for Diesel Fuels
(Scientific Research, 2015-04)In the research, aminoethyl imidazolines of cottonseed oil fatty acids with diethylenetriamine have been synthesized using the ultrasonic device creating the effect of cavitation. The yield of imidazolines was 90% - 95%. ... -
The Impact of the Physiochemical Properties of Manufactured Nanoparticles on In vitro and In vivo Evaluation of Particle Toxicity
(2014-04)Recently, many in vitro studies evaluating the effects of nanoparticles on cellular physiology have been reported. In in vitro systems, the nano-objects induce not only primary effects but also confounding (artificial) ... -
Improving Functional Characteristics of Wool and Some Synthetic Fibres
(Scientific Research, 2011-10)The present article reviews recent developments in different treatments that confer functional characteristics on wool and some synthetic fibers such as acrylic, polyamide and polyester of these functionalities mention is ... -
Investigation into Failure in Mining Wire Ropes—Effect of Crystallinity
(Scientific Research, 2013-04)A range of blends of polypropylene-polyethylene are investigated for their mechanical performances. These speciality polymer blends are chemically designed to suit high modulus/high load bearing mining wire rope applications ... -
Investigation of Adsorption Process of Hydrogen on Fe-Ti: Theoretical Simulation and Interpretation of Isotherms with Statistical Physics Treatment
(2017-10)Three theoretical expressions for the adsorption isotherms of hydrogen on Fe-Ti at three temperatures 100 K, 80 K and 60 K have been established. Our objective in this modeling is to select the adequate model that presents ... -
Kinetic Study of Decolorization of Methylene Blue with Sodium Sulphite in Aqueous Media: Influence of Transition Metal Ions
(2014-04)The kinetics of decolorization of methylene blue (MB+) with sodium sulphite in aqueous media was investigated over the temperature range 20-40°C. The kinetic studies were carried out as a function of different variables ... -
Luminescence Characteristics of LaAlO3:Eu3+ Obtained by Modified Pechini’s Method
(Scientific Research, 2017-01)The aim of the present work was to investigate the luminescent properties of europium-doped lanthanum aluminate (LaAlO3) powder prepared by Modified Pechini (MP) method. Samples were prepared at different Eu3+ ... -
Magnetic and Photon Cascade Emission of Gd3+ of NaGd(PO3)4 Monocrystal Under Appropriate Synthesis Conditions
(2017-08)A signal crystal of NaGd(PO3)4 (NGP) was successfully grown with the solid-state reaction method under appropriate synthesis conditions. Structure refinements and the purity of the samples were determined by XRD patterns. ... -
Marine Invertebrates as Bioindicators of Heavy Metal Pollution
(Scientific Research, 2014-12)Atmosphere, earth and water compose the environment. The presence of heavy metals in the environment has grown because of their large employment in some industrial and agricultural activities. Although these metals are ... -
A Mass Spectrometric Study of Kratom Compounds by Direct Infusion Electrospray Ionization Triple Quadrupole Mass Spectrometry
(Scientific Research Publishing, 2016-06)Mitragynine (MG) and its major metabolites 7-hydroxymitragynine (7-OH-MG) are two of the major components of the plant extract Kratom, which is a tree planted in Southeast Asia. Kratom has long been used by opioid-dependent ... -
Measurement of the Potassium Content of Different Food Samples with High Purity Germanium Detectors
(Scientific Research Publishing, 2016-07)Measurements of the potassium content of samples of food, performed with High Purity Germanium detectors, are presented in this paper. The potassium content was measured by identifying the 1460 keV photons produced in the ... -
Mechanical and Thermal Properties of Chemically Modified Epoxy Resin
(Scientific Research, 2012-10)Diglycidyl ether of bisphenol-A (DGEBA), having number average molecular weight (Mn) 375, was modified by incorporating the hydroxyl terminated polybutadiene (HTPB) based prepolymer using isophorone diisocyanate as a ... -
Modelling of Internal Stresses in Sheet Glass during the Cooling
(Scientific Research, 2011-06)Internal stresses in glass are generated by interactions between thermal contraction, elasticity at low temperatures, viscoelastic flow at higher temperature, and temperature gradients caused by cooling. This work intends ... -
Moderate Hyperthermia Induces Apoptosis in Metaphase-Arrested Cells But Not in Interphase Hela Cells
(Scientific Research Publishing, 2016-06)Metaphase-arrest agents and hyperthermia are both known to be capable of inducing apoptosis, and they have been used, separately, in cancer treatments. Here, we have examined whether the two treatments together may have a ... -
Molecular Dynamics Simulations of Atomistic Detailed Hydration Structures of Poly(vinyl methyl ether)
(2015-11)Molecular dynamics simulations have been performed on the aqueous solutions of Poly(vinyl methyl ether) (PVME) at various concentrations. Both radial and spatial distribution functions are used to investigate the detailed ... -
Molecular Simulation of Ion Transport at the Water/Vapor Interface
(Scientific Research, 2012-08)Molecular dynamics was used to quantify the role of the size, charge and polarisability of F– , Cl– , Br– , I– and Na+ ions in their distribution in the water/vapour interface system. Our results show that the ... -
Multi-Spectral and Fluorescence Imaging in Prevention of Overdose of Herbicides: The Case of Maize
(Scientific Research, 2017-04)Evaluation of the impact of herbicides on maize was done through multispectral and multi-modal imaging and multi-spectral fluorescence imaging combined with statistical methods. Spectra containing 13 wavelengths ranging from ...