Materials Literature
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Ultrafine-grained (UFG) copper studied in this paper was produced by equal channel angularpressing (ECAP) method and tested in gigacycle fatigue region. In contrary to conventionalgrain size copper, the appearance of cyclic slip bands is quite rare and surface relief does notform well below the fatigue limit. The cycl…
Montmorillonite nanoclay was modified with octadecylamine and compounded with natural rubber by the melt mixing method. Influence of the modification on the properties of natural rubber/organoclay nanocomposites was investigated. Furthermore, structures of the natural rubber/clay nanocomposites were characterized by X…
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…
Inhibition performance of Lornoxicam & Tenoxicam against corrosion of carbon steel in 1 M H 2 SO 4 solutions was investigated by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements. The inhibition efficiency increased with increasing inhibitor's concentration, but de…
Corrosion inhibition of carbon steel in 2 M HCl by some benzohydrazide derivatives (I-III) was studied using weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) techniques at 30C. Polarization studies showed that all the investigated compounds are of mixed type inhibitors. Tempe…
Corrosion inhibition of carbon steel in 2 M HCl by some benzohydrazide derivatives (I-III) was studied using weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) techniques at 30C. Polarization studies showed that all the investigated compounds are of mixed type inhibitors. Tempe…
We prepared hybrid nano-composites by blending chitosan-Gelatin with Cloisite 30B in aqueous solution. These composites were characterized by using FTIR, SEM and XRD analysis. Various groups present in the chitosan-Gelatin blend were monitored from FTIR spectra. The morphology, homogeneity and crystallinity of the ble…
Background. Analysis of the properties of various chitosan grades has resulted in a working hypothesis that chitosan can be used as part of protective fi lm-forming coatings for meat and meat products. The aim of this study was the research of composition, properties and antibacterial activity of chitosan-based coatin…
Inhibition of corrosion of mild steel in sulphuric acid by acidic extract of Jatropha Curcas leaves has been studied using weight loss and thermometric measurements. It was found that the leaves extract act as a good corrosion inhibitor for mild steel in all concentrations of the extract. The inhibition action depends…
Inhibition of corrosion of mild steel in sulphuric acid by acidic extract of Jatropha Curcas leaves has been studied using weight loss and thermometric measurements. It was found that the leaves extract act as a good corrosion inhibitor for mild steel in all concentrations of the extract. The inhibition action depends…
This paper investigates the physical properties of aramid and aramid/nylon hybrid air jet textured filaments for protective garments relative to ATY nozzle diameters. Three types of para-aramids(840d, 1,000d, 1,500d) and nylon(420d) filaments were prepared; in addition, 840d aramid/420d nylon and three kinds of aramid…
It was investigated that the effects of hydrogen charging on the properties of 590 MPa Dual Phase(DP) steels at the surface layers. The hydrogen-charging time was changed from 5 to 50 hours and current densities from 100, 150, and 200 <TEX>$mA/cm^2$</TEX>, respectively. It was found that the hydrogen content in the sp…
There are many reasons for decommissioning of cyclotron such as not only age-related deficiency, any serious wear or damage but also relocation, upgrade and changing mission.Decommission of cyclotron in USA and EU give rise to a lot of low-level radioactive waste and costs.Various research on decommissioning of partic…
In this paper, the influence of inverter switching harmonics on iron loss and PM loss of Permanent Magnet Synchronous Motor (PMSM) is numerically investigated by Finite Element Method (FEM). In particular, nonlinear FEM is applied for a multi-layered PM Synchronous Motors (PMSMs), Interior buried PMSM (IPMSM) and PM a…
실리카와 실란을 포함하는 고무복합체의 최적 배합 조건을 찾기 위하여 다양한 온도에서 배합 후 고무복합체의 특성을 평가하였다. 1차 배합 온도를 105, 120, 130, 140, <TEX>$160^{\circ}C$</TEX>로 각각 다르게 배합한 결과 고무복합체의 점도는 <TEX>$105^{\circ}C$</TEX>에서는 매우 높았고, <TEX>$120^{\circ}C$</TEX>부터 <TEX>$140^{\circ}C$</TEX> 영역에서는 유사하나, <TEX>$160^{\circ}C$</TEX>에서는 오히려 증가하였다. 기계적 물성과 동적점탄성 특성을 평가한 결과…
Crystallization of macromolecules is famously difficult. By knowing what has worked for others, researchers can ease the process, both in the case where the protein has already been crystallized and in the situation where more general guidelines are needed. The 264 crystallization communications published in Acta Crys…
실리카와 실란을 포함하는 고무 복합체의 최적 배합조건을 찾기 위하여 배합온도와 시간을 달리한 고무복합체의 특성을 평가하였다. 고무복합체의 제조를 위한 배합온도는 <TEX>$120^{\circ}C$</TEX>, <TEX>$140^{\circ}C$</TEX>, <TEX>$160^{\circ}C$</TEX>의 다양한 배합시간으로 배합한 후 고무복합체의 특성을 평가하였다. 배합시간이 증가할수록 점도의 감소와 결합고무가 증가하였으나, 배합시간의 증가에 따른 점도의 변화는 배합온도가 낮을수록 크고, 결합고무의 증가속도는 온도가 높을수록 크게 나타났다. 낮은 온도인 <TEX>$…
SILVER nanoparticles (AgNPs) with tailored characteristics are prepared using carboxymethyl chitosan (CMCs) which plays a dual role ; as a reducing agent for conversion of Ag+ to Ago and as a stabilizing agent to prevent aggregation of Ago and / or its clusters. The preparation involves a thorough investigation into f…
articles show that modifi ed atmosphere packaging (MAP
Electrospinning has gained widespread interest as a potential nanofiber fabrication technique for applications in biomedical field in the last 10 years due to its ease of use and functionalization, and the ability to fabricate fibers with diameters in micro and/or nanoscale. Additionally, the possibility of engineerin…