Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Abstract The isothermal crystallization behavior of a segmented copolymer constituted by hard blocks of polyglycolide and soft segments derived from the copolymerization of glycolide and trimethylene carbonate was investigated. This polymer has applied relevance because it is one of the most widely used for bioabsorba…
Composite right/left-handed (CRLH) metamaterials have demonstrated unique and advantageous features when employed in microwave and millimeter-wave circuits and systems. In this paper, an overview of the CRLH metamaterials is addressed by introducing the dispersion-engineerable property from the equivalent unit-cell ci…
In this paper, a dielectric slab with the periodic implantation of the air gap in the host passive substrate material has been analyzed. The effective permittivity of the photonic crystal with host material PTFE at 600GHz has been extracted with the help of robust method to retrieve the constitutive effective paramete…
The heat capacity of eskolaite Cr2O3(c) was determined by adiabatic vacuum calorimetry at 11.99–355.83 K and by differential calorimetry at 320–480 K. Experimental data of the authors and data compiled from the literature were applied to calculate the heat capacity, entropy, and the enthalpy change of Cr2O3 within the…
Author: Sauter, P. A. et al.; Genre: Journal Article; Issued: 2009; Open Access; Keywords: 12th International Workshop on Plasma-Facing Materials and Components for Fusion Applications (PFMC-12), Jülich, 2009-05-11 to 2009-05-14; Title: Deuterium retention of tungsten-doped carbon films
Functional copolymer/organo‐silicate [N,N′‐dimethyldodecyl ammonium cation surface modified montmorillonite (MMT)] layered nanocomposites have been synthesized by interlamellar complex‐radical copolymerization of pre‐intercalated itaconic acid (IA)/organo‐MMT complex as a “nanoreactor” with n‐butyl methacrylate (BMA)…
Abstract In the present work, the double emulsion (W/O/W) method was used to microencapsulate a protein model (Bovine Serum Albumin) in a biodegradable polymer poly(lactide-co-glycolide) (50:50) (PLGA). Colloidal and physicochemical characterization of PLGA based microspheres was investigated after their “crude” prepa…
The efficacy of the combination of Burkholderia cepacia B23 with 0.75% chitosan and 3% calcium chloride ( $CaCl_2$ ) as a biocontrol treatment of anthracnose disease of papaya caused by Colletotrichum gloeosporioides, was evaluated during storage. The growth of B. cepacia B23 in papaya wounds and on fruit surfaces was…
To reduce the oxygen transmission rate through a polyethylene terephthalate (PET) bottle (an organic plastic) diamond-like carbon (DLC) coatings on the inner surface of the PET bottle were deposited by radio frequency plasma-enhanced chemical vapour deposition (RF-PECVD) technology with C2H2 as the source of carbon an…
The geometrical configurations of atoms in protein structures can be viewed as approximate relations among them. Then, finding similar common substructures within a set of protein structures belongs to a new class of problems that generalizes that of finding repeated motifs. The novelty lies in the addition of constra…
The thermal properties of a number of Schiff base metal complexes in nitrogen atmosphere have been investigated by thermogravimetry (TG) and differential thermogravimetry (DTG).The kinetic analyses of the thermal decomposition were studied using the Coats-Redfern and Horowitz-Metzger equations.The obtained kinetic par…
The shape transformation of silver triangular nanoplates induced by nanosecond laser pulses has been monitored using agarose gel electrophoresis as well as optical spectroscopy and electron microscopy. Laser irradiation truncates the vertices of the triangular nanoplates, having an average edge size of 110 nm and an a…
Carbon thin films are often called in the literature, "diamond-like carbon" films. They consist of two basic allotropic forms of carbon, which are graphite and diamond. Carbon atoms with sp 2 bonds form after deposition of a graphite-like phase. Atoms with sp 3 bonds form a diamond-like phase. Diamond-like crystallite…
The new thioantimonate [Mg(en)3][Sb4S7] containing for the first time a [Mg(en)3]2+ cation as structure-directing unit was synthesized under solvothermal conditions applying elemental Mg, SbCl3, S and ethylenediamine. The compound crystallizes in the monoclinic space group P21/c with a = 9.9267(6), b = 14.254(1), c =…
We report on the preparation and investigation of epitaxial thin films of the magnetic shape memory alloy Ni2MnGa. For samples close to the stoichiometric composition we find that the phase transformation temperature is affected by the crystallographic orientation. Changes in the crystal structure due to the transform…
Abstract Crosslinked isotactic polypropylene (iPP) was prepared by reactive blending using dicumyl peroxide and active sulfur. The modified material was characterized by means of several techniques: dynamic mechanical thermal analysis, differential scanning calorimetry, Fourier transform infrared spectroscopy, and nuc…
Two novel axial-disubstituted silicon(IV) phthalocyanines (compounds 1 and 2) have been prepared by introducing paracetamol (a common antipyretic analgesic) or its isomer 4-hydroxyphenylacetamide at the axial positions of silicon(IV) phthalocyanine, respectively. Their photophysical and biological properties have been…
Dielectric relaxation measurement of 1-Hexanol (1-HE), 1-Propenol (1-PR) & their complex have been carried out over the entire concentration range using time domain reflectometry technique at 300 K in the frequency range of 10 KHz to 20-GHz. Bilinear calibration method is used to obtain complex permittivity ¿*(¿) from…
The paper presents a new driving mechanism made of SMA (Shape Memory Alloy), with which the robot is designed with advantages of light weight, compact structure, less joints, easily machined, etc. The robot is driven by energy which transformed by compression spring using SMA actuator when heating or cooling, and whic…
A microstrip patch antenna (MPA) has been fabricated using a conducting polymer (CP), polypyrrole (PPy) as radiating patch on a transparent 3 mm thick PlexiglasTMsubstrate. The bulk DC conductivity of the PPy patch is 2000 S/m and its thickness 120 μm. The MPA was designed for operating at 2 GHz. A similar antenna wit…