Materials Literature
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The purpose of this study is to design the low-cost planar inverted-F antenna (PIFA) applicably built in cellular phones with flnite integration technique (FIT) for simulation of surface current distribution, radiation e-ciency, radiation pattern, and gain. The prototype antenna is constructed with aluminum foil and l…
In recent days organic single crystals are gaining important due to good optical behavior. In this work nonlinear optical 2-Amino-5 Chloro Benzophenone (2A5CB) is studied using vibrational and density functional theory. Meanwhile DFT computations have been performed to calculate the first order hyperpolarizability of…
The properties of Ceria doped Scandia Stabilized Zirconia (1Ce10ScSZ) nano-powder produced in Ukraine (Ukr, VMMP) are compared to the properties of commercial ones produced by Daiichi Kigenso Kagaku Kogyo (DKKK, Japan) and Praxair (USA). In comparison to DKKK and Praxair, the Ukr nano-powder demonstrated the smallest…
A shape memory material (SMM) is a subject that interests both the academic world and the industry. It is a promising subject, a technological challenge and moreover it appeals to the imagination. These materials have the ability to regain their permanent shape after a deformation that seemed irreversible.
Recent studies on eucommia ulmoids(EU) gum are summarized.The present paper firstly introduced the extraction methods,macromolecular structure and biological synthesis mechanism of EU gum;and introduced the crystalline characterisitics of EU gum,such as the determination of crystal form of EU gum,the preparation and t…
Indexed by SCOPUS\nAbstract —Car seat fabrics are uniquely fashioned textiles. A number of them is branded by a sponged-like appearance, characterized by spots and slightly discoloured areas. Their surface anisotropy is considered to be a relevant aesthetic feature since it has a strong impact on customer perceived qu…
The investigation of carbonized layer structural features and its influence on ablation characteristic of EPDM insulator was carried out under different ablation modes through the ablation test motor,densimeter,scanning electron microscope and micron CT.The results show that the carbonized layer was a typical porous a…
本研究は二相ステンレス鋼のフェライト相（α相），オーステナイト相（γ相）の各相が示す溶解挙動を明らかにすること，および二相ステンレス鋼の腐食電位における優先溶解機構を各相の溶解挙動を通して明らかにすることを目的とした．片方の相を選択溶解させ，その部分を樹脂被覆することによりα，γ相のそれぞれの単相から成る試料（α相試料，γ相試料）を作製した．α相はγ相に比べ，より卑な腐食電位を示し，また，より卑な電位で不働態化した．各相試料の分極曲線を足し合わせると，二相ステンレス鋼の分極曲線とよく一致した．二相ステンレス鋼は腐食電位においてα相が優先的に溶解していた．これらの結果から，二相ステンレス鋼の腐食電位における優先溶解機構モデルを各相の…
The phototoelectrochemical performance of copper indium sulfide (CuInS2) nanocrystalline film electrodes prepared by a facile wet process was investigated using an electrolyte solution containing methyl viologen (MV2+) as a redox mediator. Coating of their surface with a cadmium sulfide (CdS) layer was found to be nec…
Inert porous media are used in advanced combustion devices that are essential to a variety of energy technologies in order to enable the maximum possible power density and power conversion efficiency needed for economic competitiveness and energy conservation with reduction in pollutant emissions. In these and other a…
Ce travail propose de suivre in situ les réarrangements microstructuraux subis par les fibres végétales soumises à des chargements mécaniques. Les paramètres microstructuraux sont identifiés par diffraction des rayons X aux grands angles des fibres de chanvre d'une centaine de microns de diamètre. L'analyse des figure…
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Recently, porous silicon (PS) was intensely studied by researcher due to its photoluminescence (PL), which has potential application in optoelectronic devices and sensor. In this work, the PS was prepared by chemical etching of p-type silicon wafer where the etchant consist of mixture of hydrofluoric acid (HF) and nit…
4 Abstract: Cartilage tissue culture is a new biotechnological field that has been recently emerged to provide an alternative cell culture to the treatment of damaged human tissues such as liver, bladder, chondrocytes, etc. In this study, we investigated culture method and the general characteristics of chondrocytes d…
Numerous studies recommend collagen to be employed in constructing scaffolds for bone tissue engineering. The aim of this study was to test whether addition of hyaluronic acid (HA) and of human bone morphogenetic protein 4 (BMP-4) to collagen scaffolds improves its physical-chemical and morphological properties and bi…
Functionally graded materials were produced via the powder metallurgy route based on titanium and hydroxyapatite. Samples with the following layers were produced: Ti +(Ti + 10% HA), (Ti + 5% HA)+(Ti + 10% HA) and Ti + (Ti+ 5% HA) + (Ti + 10% HA). Compression tests were performed on a Galdabini Sun5 universal testing m…
This paper describes the synthesis of Fe3O4 and CuFe2O4 nanoparticles coated with a polysaccharide type biopolymer calcium alginate (CaA). The obtained hybrid materials have been characterized by X-ray diffraction (XRD), Transmission Electron Microscopy (TEM) and Fourier Transform Infrared spectroscopy (FTIR). The Fe3…
Manganese (Mn) doped ZnO crystals have been successfully grown via the gel route. Identification of the chemical species of the crystals grown was done using Fourier Transform Infrared Spectroscopy (FTIR), structural analysis was done using X-Ray Diffraction technique while the optical properties were studied using UV…
The enhanced choline uptake and phosphorylation in tumor cells has motivated the development of radiolabeled choline derivatives as diagnostic markers for imaging cell membrane proliferation and noninvasive detection of prostate, brain and breast tumors. In the present work, we report a facile strategy for the synthes…
The effect of nanosized Au deposits on TiO2 particles for the photocatalytic degradation of reactive orange 16 dye (RO 16) as model compound was investigated. The deposition of Au on TiO2 was carried out by deposition-precipitation (DP). The catalysts were characterised by XRD, TEM, and XPS analyses. The photocatalyti…