Materials Literature
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Polyaniline (PANI) doped with dodecylbenzene sulfonic acid (DBSA) was synthesized by chemical polymerization method, which was dissolved in toluene to prepare the casting solution (PANI, 0.20% w/w). Before casting the prepared solution on the surface of PET to form PANI films, Au was sprayed onto the PET film. The mor…
ABSTRAK Ikhwan Tri Prasetyo. ”Pengaruh Variasi Campuran Pasir Silika dengan Waterglass Terhadap Permeabilitas dan Kekuatan Tekan pada Pembuatan Inti (Nakago).” Skripsi, Surakarta: Fakultas Keguruan dan Ilmu Pendidikan. Universitas Sebelas Maret Surakarta, Maret:2013. Tujuan penelitian ini adalah untuk mengetahui: (1)…
\n\t\t\t\t\tCashmere guard hair, an industrial animal protein fibre waste material has been very first time converted into ultra-fine powder particles. The work also demonstrates potential of the newly developed particles in high value technical applications such as toxic heavy metal ion separation and surface functio…
The water soluble quantum dots (QDs) are synthesized by the phase transfer and silica coating reaction. The photoluminescence intensity of silica-coated QDs are mainly affected by the amount of phase transfer agent, SDS (sodium dodecyl sulfate), and the maximum value is obtained at the cmc (critical micell concentrati…
The chalcogenide glass has superior optical properties in IR region transmittances. We have determined the composition of GeSbSe chalcogenide glass for the application of good IR lenses, resulting in the composite rate of Ge19Sb23Se58. The optical, structural, thermal and physical properties were measured by Fourier t…
The Sixth Asia Oceania Forum on Synchrotron Radiation Research (6th AOFSRR) was successfully held in Bangkok, Thailand, from August 8 to 10, 2012. The workshop was hosted by the Synchrotron Light Research Institute (SLRI). Prayoon Songsiriritthigul, former acting director of SLRI, and Sarawut Sujitjorn, the director o…
The effects of the electrolytic hydrogenation and oxidation and of the interaction of the surface ribbon with water and vapor on the frequency dependence of magnetic losses per magnetization-reversal cycle are studied based on the example of soft magnetic Fe 81 B 13 Si 4 C 2 amorphous alloy, which exhibits a positive…
This paper reported the effect of silane on the electrical properties of the nanocomposite poly(methyl methacrylate): titanium dioxide (PMMA:TiO2) films. Different types of silane were added directly into the nanocomposite PMMA:TiO2 solution. Electrical properties result shows that when different silane were use in th…
Casks can face decommissioning from their intended use for many reasons: for example, they reach administrative retirement due to regulatory changes, they become too expensive to maintain in intensive use, the characteristics of their payload evolve, the transport of some fuels is discontinued or present day technolog…
ZnTe amorphous semiconductor nanowires array was electrodeposited into the nanochannels of ion-track etched polycarbonate membrane thin films from acidic aqueous solution at 313 K. ZnTe electrodeposits with Zn-rich composition was obtained over the wide range of cathode potential from −0.8 V to −1.1 V and the growth r…
Three kinds of numerical methods (Lagrange, ALE, SPH-FEM) were used to analyze the response of an fully buried underground structure under blast loading, the differences of these three methods and factors which affect calculation accuracy were analyzed and compared. The results show that the Lagrange method can give m…
Introduction: In recent years, Hoodia plant and the preparations of Hoodia have become increasingly popular. These dietary supplements are promoted for weight loss. The limited availability of this plant material and its increasing popularity leads to the possibility of adulterations by other species or even genera. P…
Tensile and compressive creep tests of the extruded magnesium alloy AZ91D were carried out in vacuum at 150°C under constant engineering stresses ranged from 60 to 150 MPa. From the test results, the secondary creep rate in tension was found to be significantly higher than that in compression. Moreover, the estimation…
ZnO nanorods were successfully grown on Au coated Si substrate and Si bare substrate. The growth was using sol-gel immersion method at different deposition time which is 2, 4, 6, 8, 10 and 12 hours. In the presence of Au, growth rate of nanorods is much faster as it performs as a catalyst by decreasing the growth time…
This paper summarizes the performance of PEMFC catalyst layer. The main materials used as catalyst in PEMFC are presented as well as the typical structure of MEA. Functions of catalyst during the operation of PEMFC are discussed in detail. Catalyst plays a key role in accelerating the rate of electrochemical reaction,…
To optimize the process parameters of cold rolling the finite element model of metal plastic flow in cold rolling was carried out based on the cold forming principle of ballscrew and rigid-plastic finite element theory. The adaptive mesh refinement was utilized to improve calculation accuracy in large plastic deformat…
Local electrochemical technique was used to measure the impedance of austenite in AISI 304 stainless steel under tensile strain of 0%, 10%, 20%, 30%, 40%. Scanning Kelvin probe (SKP) technique was used to measure the potential distribution of the surface. The results showed that the impedance of the austenite declined…
Abstract C10H8N2O2, orthorhombic, Pca21 (no. 29), a = 15.870(4) Å, b = 3.823(1) Å, c = 13.686(4) Å, V = 830.3 Å3, Z = 4, Rgt(F) = 0.0418, wRref(F2) = 0.1120, T = 296 K.
The supramolecular formations and structure of the surface of polylactide films were studied. Atomic force and optical microscopy techniques were used to examine the spherulite growth processes and the influence of the sample preparation conditions on the surface parameters of polylactide films. Isothermal crystalliza…
본 논문은 등온열처리 온도 및 시간에 따른 2.25Cr-1Mo강의 초음파 특성 변화를 조사하였다. Charpy 충격시험과 경도시험이 3종류의 열처리조건을 가지는 각 시편들에 대하여 실시되었다. 종파를 이용한 펄스-에코법이 초음파의 감쇠와 속도 측정에 사용되었다. 연취성천이온도(FATT)는 등온열처리 시간이 길어짐에 따라 증가하였는데, 이는 인성이 감소되고 있음을 의미한다. 등온열처리 시간과 온도의 증가와 함께 종파의 속도 및 초음파의 감쇠계수는 증가하였다.