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。
Three allogamous Neidium demes, referrable to N. ampliatum sensu lato, coexist without intergradation in Blackford Pond, Edinburgh, and some other lakes. A slight change in valve shape has occurred in one deme during the last 20 years. Morphological deme traits persist in healthy clonal cultures, but with time or duri…
High-resolution transmission electron microscopy and electron energy loss spectroscopy/energy-dispersive X-ray analysis were employed to reveal the development of nanoporous, amorphous anodic oxide films on niobium. The oxide was formed at 10 A m − 2 in a dehydrated phosphate/glycerol electrolyte at 453 K . The relati…
Abstract A new method is employed to directly predict the development of yield stress distributions in injection molded products of glassy polymers. The approach is based on the results of a study on the temperature dependence of the evolution of yield stress during annealing of polycarbonate below T g . In combinatio…
Theoretical investigation on pattern photopolymerization has been undertaken in various coexistence regions of a mixture of photocurable monomer and nematic liquid crystal. The phase diagram of the mixtures is constructed in accordance with a combined Flory−Huggins (FH) free energy of isotropic mixing and the Maier−Sa…
Four newly synthesized alkoxy tetrasubstituted phthalocyanines (Pcs) were characterized by polarized optical microscopy, differential scanning calorimetry, and X-ray diffraction on oriented samples. It was found that the introduction of lateral alkyl chains branched in the second position renders the material liquid c…
The crystal and molecular structures of a cyclic β-triketone, namely, trans -2-(4′-dimethylaminobenzylideneacetyl)-5,5-dimethylcyclohexane-1,3-dione ( I ), are determined using X-ray diffraction analysis. It is established that the compound in the crystalline state exists in a diketo-enol form stabilized by intramolec…
The aim of the present investigation is development of new cast alloys, strengthened by boride phases due to volume alloying by boron for increase of durability of products working in contact with abrasive or hydroabrasive environment, and also of technology of their production.
The Fusion Council of Japan has established the long-term program for the development of blanket in 1999. In the program, the solid breeder blanket was selected as the primary candidate blanket of the fusion power demonstration plant in Japan, while liquid breeder blankets and high temperature solid breeder blanket ha…
Certain substances like wax, when incorporated into rubber vulcanisates during mixing prior to vulcanisation are able to bloom and form a surface layer with significant importance in appearance and in protection against ozone. In tyres, this is particularly important in sidewall compounds as ozone protection reflects…
This paper presents two hybrid Newton-polarization methods for transient magnetoquasistatic field simulation, including hysteretic ferromagnetic materials, in conjunction with the finite integration implicit time-domain formulation. The hybrid techniques are based on the combination of the polarization method and the…
Nanosize clusters of titania were dispersed in mesoporous MCM-41 silica matrix with the help of the incipient wet-impregnation route, using an isopropanol solution of titanium isopropoxide as precursor. The clusters thus formed were of pure anatase phase and their size depended upon the titania loading. In the case of…
This is a series of columns that addresses various topics within the realm of polymer degradation and stabilization. Topics that could be covered in one of these columns include those dealing with thermal degradation and fire retardancy, photodegradation and stabilization, or bio-degradation. Because my principal area…
Abstract By the use of aniline and the sterically hindered aromatic primary amines, 2,6‐Me 2 C 6 H 3 NH 2 and 2,6‐ i Pr 2 C 6 H 3 NH 2 , N ‐bonded monochlorosilanes, ArN(SiMe 3 )SiMe 2 Cl [Ar = C 6 H 5 ( 1a ), Ar = 2,6‐Me 2 C 6 H 3 ( 1b ) and Ar = 2,6‐ i Pr 2 C 6 H 3 ( 1c )] have been prepared by a sequential deproton…
A carbon film grown at room temperature using a cathodic arc process in ambient gases such as N 2 and He was investigated by Raman spectroscopy and scanning electron microscopy (SEM). Diamond particles were found to be formed at a constant total pressure of 10 -2 Pa, while graphite-like carbon was grown at a lower pre…
The isochoric thermal conductivity of solid nitrogen is investigated on four samples of different densities in the temperature interval from 20 K to the onset of melting. In α-N2 the isochoric thermal conductivity exhibits a dependence weaker than Λ∝1/T; in β-N2 it increases slightly with temperature. The experimental…
Abstract In order to simplify the array manufacturing process of FFS TFT‐LCD, novel four‐mask process which is adopted to the optimum multiple‐slit design in the common electrode and contact hole has been developed. The adoption of the optimum multiple‐slit design is able to support stable process margin without rippl…
The effect of the volume fraction of eutectic carbides on the thermal fatigue resistance of multicomponent white cast iron has been investigated. Thermal fatigue tests were carried out for 100 and 500 cycles. Nucleation of thermal fatigue cracks took place mostly at the specimen surface, induced by mechanical and meta…
Single-phase samples of the Sn 2 - 2 x Sb x Fe x O 4 solid solution were prepared by solid-state reaction in air at 1300 °C for 0.26 ≤ x ≤ 0.66. The crystal structure of the Sn 2 - 2 x Sb x Fe x O 4 phases was studied by electron diffraction and X-ray powder diffraction. The compounds crystallize with the rutile type…
Power ultrasound was investigated as an environmentally benign technique for the mitigation of microbiologically influenced corrosion (MIC) in natural gas pipeline facilities. Bacterial kill tests were performed with simulated pipeline brine containing acid-producing bacteria, Enterobacter aerogenes. The effect of son…
Software tools for designing downhole scale inhibitor (SI) squeeze treatments are widely available and have been successfully applied in thousands of wells worldwide. Many SPE papers have been published describing such squeeze design case studies from the conceptual modelled design, to implementation and post treatmen…