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。
Patterned sapphire with frustum of a cone shape is designed to grow ZnO nanoflower arrays in this paper. The ZnO nanostructures are grown by two-step approach, including the synthesis of homo-seed layer and the growth of ZnO nanostructures in aqueous solutions at low temperature. The as-prepared samples were character…
In this work , double layer and three antireflection coating were designed and simulated , optical reflection values were deduced with a matrix formulation via a personal computer using matlab program, six materials has been selected to investigated of the reflection as function of wavelength in visible region and nea…
In this paper, nanocomposites are synthesised with Tunisian natural clay which has the advantage of being inexpensive. In fact, it is simply a mixture of several sorts of clays (kaolinite, dolomite, calcite, illite, and quartz). This clay has been cleaned, purified, dried, and steered with polyacrylate resin which is…
Abstract A series of the samples La 1− x (Sr 1− y Na y ) x MnO 3 ( y =0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were prepared by the solid‐state reaction method. Magnetoresistance enhancement and temperature stability of magnetoresistance in the system La 1− x (Sr 1− y Na y ) x MnO 3 with unchanged Mn 3+ /Mn 4+ ratio through the…
In this paper, the basalt fiber/polylactic acid composites were prepared by laying-up hot-pressing process, using PLA sheet as the matrix material and basalt fiber fabrics as the reinforced material, besides, the mechanical properties were studied and the parameters of hot-pressing were optimized. PLA mass fraction, h…
In dry foam, we investigate the link between coarsening rate and bubble distribution. Revisiting Mullins' predictions (Mullins W. W. , J. Appl. Phys. , 59 (1986) 1341), we predict, without any phenomenological assumption, that the volume distribution behaves as v (2− D )/ D (where D is the dimension of space) in the l…
Polyelectrolyte based capsules are recently proposed as drug carriers showing the potentiality to overcome the shortcomings associated to conventional drug formul. Capsule properties such as composition, mechanical stability, morphology and permeability can be engineered at the nanometer scale depending on the specifi…
The influence of calcined temperature and sintered technology on the properties of 0.85 （ Na0.5Bi0.5 ） TiO3-0.144(K0.5Bi0.5)TiO3-0.006BaTiO3(NBT-KBT-BT) lead-free piezoelectric ceramics was investigated by conventional solid state method, and the relationship between calcined temperature, sintered technology and prope…
Diatom species distributions on remote islands are influenced by both habitat quality and location. In this study diatom distributions and water quality were explored in the Falkland Islands archipelago with reference to island floras elsewhere, using 28 freshwater sites (small ponds, shallow lowland lakes, upland tar…
The kinetics of epoxidation of vegetable oils by traditional route (formic acid) or novel routes (peroxophosphatotungstate, methyltrioxorhenium) with hydrogen peroxide (H2O2, 30 wt. %) were investigated. The mathematical models describing the kinetics of epoxidation were developed. Using a linear fit method, kinetic p…
In this paper, unit cells using coplanar waveguide transmission line with composite right and left-handed structure are proposed. The characteristics of the unit cells are analyzed in order to design low-pass filter and high-pass filter in small sizes. By changing the sizes of these unit cells, the parameters of right…
Three-parameter statistical method of the calculation of Qn distribution in silicate melts and glasses has been developed. The method allows determining the concentrations of silicate structural units in wide compositions range at different temperatures when only the limited experimental data are available. The method…
Present ITER diagnostics are designed to provide machine protection, basic and advanced control, fusion performance evaluation, and an extensive measurement capability for furthering plasma physics understanding. However, in the longer term beyond ITER, diagnostic components and associated materials must survive exten…
Los Alamos National Laboratory has completed the conceptual design of the Materials Test Station (MTS), an accelerator-driven neutron source for irradiating nuclear fuel and materials in a fast neutron spectrum. In many respects, the irradiation conditions in the MTS are quite similar to those experienced by the first…
Intensity and Polarization Modulation Holographic Recordings and Vector Holograms Using Inhomogeneous Polarized Beams, Ono, Hiroshi, Matsumoto, Taro, Sasaki, Tomoyuki, Noda, Kohei, Takahashi, Ryo, Nishioka, Emi, Kawatsuki, Nobuhiro
Well-aligned ZnO nanorod arrays had been prepared by hydrothermal methods assisted with pulsed electromagnetic field (PEMF). The effects of pulsed electromagnetic field on growth and structure properties of ZnO nanorod arrays were studied in detail. XRD and SEM analysis showed ZnO nanorod arrays had bigger length to d…
The structure of perforation plate had a substantial effect on the water conductivity of plant vessels. As the microscopic structure of vessel and perforation plate is highly complex, it is very difficult to numerically solve the flow equations. The effects of perforation plate structure on water flow in plant xylem v…
To characterize the performance of Poly(ethylene terephthalate) (PET) fibers of high modulus and low shrinkage (HMLS), static and dynamic mechanical test, DSC, DMA and sonic orientation experiments were carried out. The results indicated that tenacity, initial modulus, Lase-5 decreased and ultimate elongation increase…
Based on molecular-dynamics (MD) simulations, we have calculated the static and dynamic correlation functions in a BaTiO 3 crystal. The static correlation functions have been used to study the peculiarities of diffuse scattering in barium titanate showing the experimentally observed anomalous planes. Based on time-dep…
Abstract The four porphodimethene isomers, 5,10‐ and 5,15‐disubstituted, have been synthesized in a one‐pot reaction by the Lindsey protocol. Three of them have been characterized by X‐ray crystallography. Structures show that two of them are 5,15‐porphodimethenes: one is syn ‐equatorial, another is anti ‐configuratio…