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。
The structures of concentrated phases formed in mixtures of an anionic polyelectrolyte and the cationic surfactant decyl betainate (DeB) in water were changed in situ via the hydrolysis of the latter. Degradation of DeB yields decanol, and as the fraction of alcohol increases the structure of the concentrated phase ev…
Contrast agents are currently used during echocardiography for enhancement of structure and function, as well as for perfusion imaging. The next frontiers in contrast ultrasonography are targeted imaging, and using microbubbles for therapeutic purposes. Targeted imaging is the detection of specific components of cardi…
Other than the brittle failure, the ductile behavior of the aged nuclear reactor pressure vessel (RPV) steels is also of interest for the integrity assessment and evaluation of the irradiation response. The fracture toughness of high toughness materials like RPV steels can be characterized by a J-R curve. Since the RP…
From a fundamental and application point of view it is of importance to understand how charge carrier generation and transport in a conjugated polymer (CP):fullerene blend are affected by the blend morphology. In this work light-induced electron spin resonance (LESR) spectra and transient ESR response signals are reco…
We report a study of the internal quantum efficiency (IQE) of CdSe quantum-dot (QD)-sensitized solar cells prepared by direct adsorption of pre-synthesized QDs, passivated with either tri-n-octylphosphine oxide (TOPO) or n-butylamine (BA), onto a nanocrystalline TiO(2) film.
In this paper, it has been studied the acclimation stage of a synthetic wastewater fed with glucose as a carbon source, using a tow-chambers microbial fuel cells (MFCs). Special attention has been paid to the start-up. During the acclimation period, the microbial fuel cells (MFCs) will be exposed to variations in oper…
This article describes the wheel—rail interface management (WRIM) model being developed by Transportation Technology Center Inc. to evaluate wheel—rail interface conditions, plan wheel—rail maintenance, and develop strategies to improve railway system performance. The WRIM software integrates wheel—rail profile measur…
Reversible logic gates are very much in demand for the future computing technologies as they are known to produce zero power dissipation under ideal conditions. Reversible logic circuits are of interests to power minimization having applications in low power CMOS design, optical information processing DNA computing, b…
A novel amphiphilic chitosan derivative, N-[(2-hydroxy-3-N,N-dimethylhexadecyl ammonium)propyl]chitosan chloride (N-CQCs), was prepared with a degree of substitution (DS) of 15.58%. N-CQCs was positively charged and its zeta potential was +28.4 mV. The introduction of a long carbon chain with a quaternary ammonium sal…
This paper proposes a simple collisional-radiative model to characterise capacitively coupled argon plasmas driven by conventional radio frequency in combination with optical emission spectroscopy and Langmuir probe measurements. Two major processes are considered in this model, electron-impact excitation and the spon…
The article presents preliminary results of investigation on structure, morphology and mechanical properties of boron nitride thin films prepared by pulsed laser deposition on various steel substrates. In order to improve adhesion and reduce internal stresses, substrates were subjected to gas nitriding. To increase ga…
14 pages, 3 figures, 38 references. El libro de referencia consta de 475 páginas y la publicación es el capítulo 13 del mismo.
Background: Friction is usually encountered during sliding technique for orthodontic space closure. This study aims to investigate the effect of fluoride on frictional resistance between stainless steel orthodontic brackets and steel and NiTi arch wires. Materials and Methods: A total of 144 standard 022 stainless ste…
Corrosion of steel reinforcement due to environmental effects is a major cause of deterioration problems in bridge barriers. Glass fibre reinforced polymer (GFRP) not only addresses this durability problem but also provides exceptionally high tensile strength and Young's modulus. A recent design work conducted at Ryer…
An accelerated deposition test facility was operated with three different coal ash species to study the effect of ash composition on deposition rate and spatial distribution. The facility seeds a combusting (natural gas) flow with 10–20 micron mass mean diameter coal ash particulate. The particulate-laden combustor ex…
Cu 2 ZnSnS 4 (CZTS) thin films were fabricated using a rapid thermal process in 5% H 2 S+ N 2 atmosphere from precursors prepared by the sol–gel method. The precursors were preheated at 250 °C for 10 min and then sulfurized at different temperatures from 300 to 600 °C for 10 min. XRD studies showed that the samples su…
Ta2O5 and Nb2O5 films are deposited on BK7 glass substrates using an electron beam evaporation method and are annealed at 673 K in the air. In this letter, comparative studies of the optical transmittance, microstructure, chemical composition, optical absorption, and laser-induced damage threshold (LIDT) of the two fi…
The effects of Fe content and cooling rate on the solidification path and formation behavior of the Al5FeSi (β) phase in Fe-containing eutectic Al-Si alloys were studied based on thermodynamic analysis and pertinent experiments. To predict solidification path in Fe-containing eutectic Al-Si alloys, the thermodynamic c…
Lu modified(Ca_(2.94-x)Lu_xCe_(0.06))(ScMg)Si_3O_(12)(CLSMS:Ce~(3+))yellow emitting phosphors are prepared by solid-state reaction.The effects of Lu content on crystal phase formation,luminescence properties and temperature characteristics are studied.It is revealed that the Lu induced luminescent enhancement can be a…
Hexasubstituted cyclotriphosphazene hydrazones [N3P3(-OC6H4-p-CH=N-NH-C(O)-C6H4-p-X)6] were prepared by the reaction of hexachlorocyclotriphosphazene with N'-(4-\n\nhydroxybenzylidene)-4-substituted-benzohydrazides [HO-C6H4-p-CH=N-NH-C(O)-C6H4-p-X]. The structures were confirmed by elemental analysis, FT-IR, 1H, 13C,…