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 Influence of Filler Component on Mechanical Properties and Thermal Analysis of PP-LDPE and PP-LDPE/DAP Ternary Composites
Transmission properties of chiral metamaterials are investigated through the loss factor. Besides the amplitudes of transmission coefficients of right and left circularly polarized waves, the phases are the other main keys to control the refractive index and chirality of the chiral media, directly affecting the loss f…
Abstract This paper presents a quantitative study of scale inhibitor thermal stability with regard to their potential application in high temperature wells. Systematic experiments have been conducted to investigate: (1) the influence of thermal aging on phosphonate and polymeric inhibitors at 200 °C, (2) the time (min…
Abstract The development of effective scale squeeze inhibitors in carbonate reservoirs is still a big challenge, especially with the increasing environmental constraints. For tight carbonate reservoirs, formation damage is one of the major considerations as it can be caused due to fines mobilization, carbonate reservo…
Periodic mesoporous materials of the type (R'O)(3)Si-R-Si(OR')(3) with benzene as an organic bridge and a crystal-like periodicity within the pore walls were functionalized with SO(3)H or SO(3) (-) groups and investigated by small-angle neutron scattering (SANS) with in situ nitrogen adsorption at 77 K. If N(2) is ads…
We report the magnetic behavior of the one-dimensional (1D) cyanido-bridged chain complex [Tb(pzam)${}_{3}$(H${}_{2}$O)$M$(CN)${}_{8}$]\ifmmode\cdot\else\textperiodcentered\fi{}H${}_{2}$O, where $M$ $=$ W(V). The system shows qualitatively similar magnetic behavior with its already reported $M$ $=$ Mo(V): a broad anom…
The role of Al2O3/La2O3 ratio in the processing and properties of sapphire-like glass ceramics in the Al2O3–La2O3–ZrO2 system is elucidated. We show that processing on an industrial scale (i.e. without a need for extremely rapid quenching and very high consolidation pressures) requires a certain degree of glass formin…
Abstract In scale inhibitor squeeze treatments, precipitation of the inhibitor within the formation can lead to extended squeeze lifetimes. However, such processes also have the potential to cause formation damage unless they are carefully designed and controlled. The formation of a partially soluble inhibitor/metal c…
Abstract In this paper the quality of boron‐doped diamond films grown by microwave (MW) plasma activated chemical vapor deposition on high pressure high temperature synthetic type Ib {111}‐oriented diamond substrates is estimated from the correlations between low‐temperature cathodoluminescence analyses and Hall measu…
Abstract The success of chemical treatments to prevent or remove formation damage, depend on the placement efficiency. In down-hole scale control treatments, diversion techniques are applied for improved placement of scale dissolvers or scale inhibitors in the potentially productive intervals. Foamed scale treatment i…
Abstract The scale inhibitor squeeze treatment is a well-known method widely used in the oilfield to prevent mineral scale formation. Squeeze lifetimes are dependent on a number of factors. Some of these factors are reservoir temperature, brine composition, reservoir mineralogy, and inhibitor chemistry. In an attempt…
Abstract The ultra-high temperature (150–250°C), pressure (1,000–2,000 bar, 15,000 to 30,000 psi) and TDS (>300,000 mg/L) in deepwater oil and gas production pose significant challenges to scaling control due to limited knowledge of mineral solubility, kinetics and inhibitor efficiency at these extreme conditio…
A simple curing condition was introduced to fabricate a stable superhydrophobic surface on aluminum. In this method, hierarchical structure by low energy hydrophobic groups (trichloromethylsilane) are combined and after annealing in a radiative type oven, exhibit superhydrophobic properties with water contact angle of…
Cancers of the upper GI tract, liver and pancreas have some of the poorest prognoses of any malignancies. Advances in diagnosis and treatment are sorely needed to improve the outcomes of patients. Nanotechnology offers the potential for constructing tailor-made therapies capable of targeting specific cancers. The part…
Abstract Dissolver technology has been developed and applied with varying degrees of success over the past few years to clean carbonate and the more challenging sulphate/sulphide scales from production tubing and process equipment. A common question that is often raised but which has no published experimental work to…
Abstract Electron paramagnetic resonance studies have been performed on the perovskite manganite Pr 0.55 Sr 0.45 MnO 3 . The various spectrum parameters including line width, effective g ‐value and double‐integrated intensities have been analyzed in detail. The changes of g ‐value and linewidth are indicative of the p…
Abstract The injection of multiple chemicals, such as anti-scale and anti-corrosion additives, must often take place sequentially or simultaneously in very close injection points. Thus it is necessary not only to evaluate the efficiency of chemicals individually, but also to screen for incompatibilities and/or interfe…
With the trend in miniaturisation of electronic, optoelectronic or photonic devices, it becomes necessary to control, at the highest level, the number and positioning of dopant atoms which are introduced in the devices by ion implantation. As well, new promissing fields of research like quantum information processing…
CdS nanoparticles doped with Mn have been synthesized in aqueous solution by using polyvinyl alcohol (PVA) as a capping reagent. Influence of the polymer concentration on the size and concentration of the nanoparticles was studied using transmission electron microscopy and optical absorption. Incorporation of Mn²⁺ ion…
We introduce an effective refractive-index model to predict the spectral positions of localized surface plasmon (LSP) modes of a silver nanoparticle on a thin-film silicon substrate using a semi-analytical method. The enhanced scattering into the substrate caused by the nanoparticle dipole and quadrupole modes is veri…