Materials Literature
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The effect of iodide ions on the corrosion inhibition of mild steel in 1 M sulfuric acid in the presence of polyacrylamide (PAM) with different macromolecular weight and polyacrylamide poly4-vinylpyridine (PAM/P4VP) (50%/50%) mixture were studied by weight loss measurements at 18°C. The obtained results showed that th…
In our ongoing research efforts to improve and develop new treatment strategies against oxidative stress, we develop simple and efficient methods to synthesis a new derivatives as stable free radical scavenger through conjugation of the different moieties to enone 8a-c & 16 as starting compounds and containing differe…
利用第一性原理研究了二苯硫单分子、一维分子链和分子单层膜的原子结构。CASTEP计算显示二苯硫单分子中两个苯环面的夹角为40度。二苯硫一维分子链由一系列略倾斜的二苯硫分子平行组成，其分子间距为0.37 nm；许多分子链平行错位组成二苯硫分子单层膜，分子链间距为0.66 nm。二苯硫分子单层膜的能量比单分子的能量低了0.146 eV，这说明分子单层膜的结构稳定，这是一个分子自组装过程。 The first-principle technique has been employed to determine the atom structure of 1,1’-biphenyl-4-thiol (BPT), the molecular…
Ninty four algal species were reported from different freshwater habitats of Nagaland, including 16 Cyanophyta (Cyanoprokaryota), 35 Chlorophyta, 17 Euglenophyta and 26 Heterokontophyta (Bacillariophyceae). Among these taxa, 10 species were reported for the first time in India. This is a first record of freshwater alg…
Notwithstanding the numerous studies in the last decades to prevent runaway reactions, the maintenance of stability in chemical reactors is still a current issue in industrial chemical plants. There is an urgent need to implement an efficient and robust algorithm capable of detecting in advance anomalous behaviours of…
The corrosion of zinc in phosphoric acid containing 4-aminoantipyrine has been studied at different acid concentrations, inhibitor concentration and temperatures. Corrosion increases with the concentration of acid and the temperature. Inhibition efficiency (I.E.) of 4-aminoantipyrine increases with the concentration o…
HgCdTe-based metal-insulator-semiconductor field effect transistor is fabricated by low-cost liquid phase epitaxy technique. Clear SdH oscillation in xx and quantum Hall plateaus of xy are observed, indicating that it is a good transistor. By measuring the magnetoresistance near zero field, we observe the weak antiloc…
本文对外电场中一维多势垒结构推导了电流密度表达式，进而得出单位面积的电导。在半导体材料(GaAs/GaxAl1–xAs)的参数范围内，通过数值计算进一步研究了一维多势垒结构的单位面积电导与电压特性曲线及温度和势垒宽度对电导–电压曲线的影响。 In this paper, the current density expression and the unit area conductance for one-dimensional multi-barrier structure in the presence of a constant electric field were derived. For a selected rang…
Aluminum 6063 T5 is artificially age hardened alloy contains magnesium (0.45-0.9%) and silicon (0.2-0.6%) as the main alloying elements. Age hardening process is used to harden this alloy by forming second phase particles of Mg2Si. In this work, mainly focusing the enhancement of properties like hardness and strength…
ИЗГОТОВЛЕНИЕ ЭФФЕКТИВНЫХ МАЛОПЛОТНЫХ КОНВЕРТЕРОВ ЛАЗЕРНОГО ИЗЛУЧЕНИЯ В РЕНТГЕНОВСКОЕ И НОВЫЙ
Corrosion of carbon steel is an enormous problem of practical importance and there have been searches for optimal ways of preventing it in all quarters. A previous study has shown that Nigeria has abundant good-quality bitumen resources for sustained exploitation. Bitumen are common and economical coat-inhibitors of s…
Abstract Extrudates of AlFe and AlCeFe pillared bentonites shaped as Raschig rings were used in the oxidation of phenol by a Fenton process, and the catalytic activity in terms of reuse was evaluated. All the tests of oxidation were carried out in a semibatch basket reactor, which operates under extremely mild reactio…
The aim of this work was to study the influence of passive MAP, perforated polyethylene package and three different oxygen transmission rate active packaging on the quality of fresh Chinese kale (Brassica oleracea L. var. alboglabra) stored at 5°C. Chinese kale was trimmed off defects and undesirable parts, then packa…
This work is intended to present the current status of joining development for silicon carbide-based materials used for structural applica tions in harsh environments. The paper reports preliminary results of our study on S iC bonding by the Spark Plasma Technique (SPS). SiC plates and disk couples were b onded by the…
The paper describes a challenge of innovation in the field magnetic sensing devices. The main idea is the use of magnetic nanowires as sensors for electric or nonelectric quantities. Two main problems have to be solved: contacting the nanowires and their reduced sensitivity. Thus, custom templates are obtained using a…
In this article, a novel bandpass fllter using symmetrical composite right/left- handed transmission lines (CRLH TL) ZOR and U-shaped resonator with three transmission zeros (TZs) is proposed. The design concept of the proposed fllter is based on the zeroth- order resonator (ZOR) and half-wavelength open-ended resonat…
This paper deals with the cyclic deformation behavior of the ultrafine-grained (UFG) Ti- 6Al-7Nb alloy with extra low content of impurities (ELI) produced by severe plastic deformation (SPD). The SPD processing comprised equal channel angular pressing (ECAP) and subse- quent thermomechanical treatment and was aimed at…
Traditional CMOS (complementary metal-oxide-semiconductor) transistors have already been in the nanometer range. As bulk silicon material is approaching its physical limits, it is highly desirable to seek novel, functional materials to continue Moore's law. Two-dimensional(2D) materials, such as graphene and silicene,…
Pressboard is a hard and rigid board having high with excellent electrical and mechanical properties, is specifically produced for the high voltage and extra high voltage Transformer Industry. Components and insulating sheets of pressboard are used in oil-cooled power transformers and distribution transformers primari…
The buccal region offers an attractive route of administration for systemic drug delivery. Nifedipine is a calcium channel blocker and its oral bioavailability is 45-56% because of first pass metabolism. Buccal route of drug delivery provides direct access to the systemic circulation and thus bypasses liver and avoids…