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。
Linear–dendrite copolymers containing hyper branched poly(citric acid) and linear poly(ethylene glycol) blocks PCA–PEG–PCA are promising nonmaterial to use in nanomedicine. To investigate their potential application in biological systems (especially for drug carries) ONIOM2 calculations were applied to study the natur…
Harmonics and reactive currents detected in precision is the key whether active power filters work well. Methods on detecting affect compensation currents and detecting precision. A novel harmonics and reactive currents detecting algorithm in three phase circuit is proposed. It extracts positive fundamentals of source…
Thesis (PhD)--Stellenbosch University, 2012.
This paper deals with the main magnetic field distribution for a three-phase five-column disintegration transformer with the iron core disassembled into several parts owing to limited transport condition. The finite element method is employed to solve such a special configuration transformer, in which the direct field…
Stand-alone PMSG has to face voltage fluctuation problems. This paper proposes a kind of voltage stabilizing method based on series resonance in the armature loop and analyses the principle of stabilizing voltage and expounds on the calculation method of series capacitance. Taking a 5kVA three-phase PMSG as an example…
Abstract Summary: Self‐assembly is an interesting strategy for the creation of periodic structures at the nanoscale. The microphase separation in a linear ternary block copolymer consisting on three immiscible components (ABC), give rise to the formation of different final morphologies that can be controlled by variou…
Copper has become the material of choice for the interconnects in semiconductor devices due to its low resistance and ease of processing [1]. Device fabrication with copper requires electrochemical deposition and chemical mechanical planarization (CMP). Since the polished copper surface generated during CMP is conside…
In this study we aimed to examine the co-doping effects of 1/6 mol% $Co_3O_4$ and 1/4 mol% $Cr_2O_3$ (Co:Cr = 1:1) on the reaction, microstructure, and electrical properties, such as the bulk defects and the grain boundary properties, of ZnO- $Bi_2O_3-Sb_2O_3$ (ZBS; Sb/Bi = 0.5, 1.0, and 2.0) varistors. The sintering…
In this study, liquid crystalline copper phthalocyanine and single walled carbon nanotubes were dispersed in solution to prepare novel composites. Thin films of these composites prepared by solving of the composite in dimetylformamide and then by spin coating the solution onto the substrates were studied by the method…
In this Study, the Degradability of Low Linear Density Polyethylene (LLDPE) and Soy Spent Powder Blends under Outdoor Exposure of Malaysia. Cobalt Stearate Was Used as a Pro-Oxidant. the Degradation of the Blends Was Observed by Monitoring the Changes in the Tensile Properties and Molecular Weight. the Degradability o…
We added different amount of Fe (NO3)3 to the solution made of aluminum nitrate, copper nitrate and isopropanol to form gel. CuAl1-xFexO2 (x = 0, 0.01, 0.03, 0.05, 0.07, 0.09) powders and films were prepared in our experiments. The films were prepared on the quartz substrates. The powders and films were annealing at 1…
Spinel vanadates possess rich physics arising from the interaction among spin, orbital and lattice degrees of freedom. We report the dielectric properties of polycrystalline Fe 1.8 V 1.2 O 4 . A thermally activated dielectric relaxation appeared in low temperature due to the inhomogeneous conductivity between grains a…
Lithium-doped zinc oxide(ZLO) thin films were deposited on glass substrates by sol-gel method.And then by controlling processing parameters such as the amount of doped lithium and stability, etc,Well-aligned ZLO nanorod arrays were successfully grown on substrates by hydrothermal method, where the substrates were spin…
Abstract : We have investigated a wet chemical process for nanoscale texturing of sulfur-doped silicon (Si) surfaces, which results in substantial suppression of the reflectivity in a broad spectral range, leading to black Si surfaces. The blackened surface was characterized optically and with Veeco micro-profiler. We…
Abstract Long chain aliphatic ester, isopropyl myristate, was synthesized using energy efficient microwave irradiation technique. The iso propyl myristate forms complexes with titanium tetrachloride in different mole ratios. The nature of chemical bonding between the titanium and the ester functionality was investigat…
This article has no abstract. Keywords: Benzene and Benzene Homologues; Bituminous compositions (bitumen, asphalt, pitch)
We present a systematic study of different sonicated cold development scenarios for the purpose of achieving high density optical metamaterial. High aspect ratio sub-15-nm dots at pitch as small as 40 nm are successfully demonstrated for 110-nm thick resist at low exposure dose. Some of the key results include sub-15-…
Magneto-transport measurements were performed on surface conducting hydrogen-terminated diamond (100) hall bars at temperatures between 0.1–5.0 K in magnetic fields up to 8T.
Deformation and failure of meso-structures take great effect on the loading and energy absorption of aluminum foam under impact. We designed a split Hopkinson pressure bar (SHPB)-high speed digital camera system to monitor the meso-deformation and failure features, and measure the nonuniformity of deformation of alumi…
An instrument, named solution crystallization analysis by laser light scattering (SCALLS), that measures the solution melting and crystallization of polymers in solution was developed further in this study.The instrument was tested in a theoretical study to evaluate the Flory-Huggins relationship of melting point depr…