Materials Literature
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CHARACTERISATION OF NATURAL HYDROXYAPATITE (HAP) DERIVED FROM DIFFERENT TYPES OF TILAPIA FISH BONES AND SCALES Fara ANK* and Abdullah HZ Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia Hydroxyapatite (HAp), Ca10(PO4)6(OH)2, is reco…
Currently, in order to resist the scratching of the fuel rod surface while fabricating the fuel assembly of the light-water nuclear reactor, we use a solution of nitrocellulose, an explosive material, as a dry lubricant along with its solvent. However, the demand for developing safe and harmless aqueous alternative ma…
A computational study of a thermal striping in the upper plenum of PGSFR(Prototype Generation-IV Sodium-cooled Fast Reactor) being developed at the KAERI(Korea Atomic Energy Research Institute) is presented. The LES(Large Eddy Simulation) approach is employed for the simulation of thermal striping in the upper plenum…
This paper involves the use of Rayleigh-Ritz finite element method to determine the temperature distribution in a nuclear fuel element consisting of a sphere of fissionable material and a spherical shell of aluminum cladding. The differential equation is a one – dimensional second order differential problem. The finit…
The aim of this work is the development of an electronic device for the rapid characterization of soft ferromagnetic materials for electrical purposes named single sheet tester (sst). The basis of this study consists in determining the magnetic induction, B and the magnetic field, H, by using a simplified circuit. Res…
ASSESSMENT OF THE POTENTIAL RISK IN CHEMICAL SYNTHESIS OF CADMIUM SULPHIDE NANOPARTICLES: 4(41) 2014 https://doi.org/10.33573/ujoh2014.04.051 Demetska O.V.1, Kozytska T.V.2, Andrusishina I.M.1, Movchan V.O.1, Tkachenko T.Yu.1, Grodzyuk G.Ya.3 ASSESSMENT OF THE POTENTIAL RISK IN CHEMICAL SYNTHESIS OF CADMIUM SULPHIDE N…
Recently nano particles have proven for wide array of bioactive properties. In the present study, antibacterial properties of chitosan silver nano composites (CAgNCs) were investigated against fish pathogenic Edwardsiella tarda. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of…
Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and ch…
Fe-Ni has been of great interest because it is known as one of low thermal expansion alloys as various application areas. This alloy was fabricated by electroforming process, and effect of heat treatment on thermal expansion and hardness was investigated. Nano-crystalline structure of 13.3 - 63.5 nm in size was observ…
Turbine blades are considered to be the heart of turbine and play a vital role in extracting energy from high temperature and high pressure gases. Without blades there would be no power and the slightest fault in blading would mean a reduction in efficiency and costly repairs. In this regard, an attempt has been made…
Introduction. Periodontitis numbers among the most widespread diseases. The prevalence of the periodontal inflammation does not tend to decrease, but long-term history of the disease, the complexity in treatment significantly reduce the quality of life in patients, cause the tooth loss. An important principle for the…
In this study, fully annealed AA5083 type alloy sheets with 1 mm in thickness were processed by accumulative roll bonding (ARB) at room temperature, up to 6 ARB cycles. It was found that microstructure was refined and mechanical properties were significantly improved with ARB processing. The maximum achieved values of…
The paper presents the results of studies surface microrelief, frequency-temperature characteristics of the imaginary part of the dielectric permittivity and dielectric loss of PE+TlInSe2 composite materials in 25。C - 150。C temperature and 25 Hz - 1 MHz frequency range before and after application of the aluminum nano…
A series of β-chlorinated meso-tetraphenylporphyrins, H2TPPClx (x = 2, 4, 6, or 8) have been prepared and the catalytic activity of their manganese(III) complexes in oxidation of cyclooctene, cyclohexene, and methyl phenyl sulfide with tetra-n-butylammonium periodate was studied. The catalytic activity of the manganes…
Nowadays, superparamagnetic iron oxide nanoparticles are an important tool for cancer treatment, such as magnetic hyperthermia. The goal is heating diseased tissue and then tumor cells are destroyed. Magnetic nanoparticles are promising mainly because they have specific ability to reduce side effects. However, for in…
The microstructure, chemical composition and self-discharge of some retail available supercapacitors have been investigated. Standard capacities of 1.0, 0.47 and 0.1 F at a maximum potential of 5.5 V were employed in this study. Self-discharge were carried out at room temperature and close to the nominal maximum worki…
Zhang, Fubin, Zhang, Feng (2014): A New Species Of The Genus Allochthonius (Pseudoscorpiones, Pseudotyrannochthoniidae) From Liupan Mountains, China, With The Description Of The Male Of Allochthonius Brevitus. Acta Zoologica Academiae Scientiarum Hungaricae 60 (1): 45-56, DOI: 10.5281/zenodo.5736280
The aim of the paper is to expand the theory of sorption and equilibrium moisture contents as well as to present the methodology of developing two types of sorption isotherms - I and II. The attention is also paid to the importance of the isotherms in the thermodynamics of drying and in the process of storage of agric…
We survey polaron formation in the Barisi\ifmmode \acute{c}\else \'{c}\fi{}-Labb\'e-Friedel and Su-Schrieffer-Heeger (BLF-SSH) model using acoustic phonons in the adiabatic limit. Multiple different numerical optimization routines and strong-coupling analytical calculations are used to find a robust ground-state energ…
The synergistic effect of ammonium polyphosphate (APP) and boric acid (BA) on the flame retardancy and thermal degradation of pine needles was investigated. Thermogravimetric analysis (TGA) showed that the presence of an ammonium polyphosphate and boric acid system increased the char residue and decreased the pyrolysi…