Materials Literature
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В теории даны определения для гравитационного, электромагнитного и ядерного взаимодействий, постоянной тонкой структуры, удельной энергии связи, черной дыры. Представлены геометрические модели для электрона, протона, нейтрона, ядра атома дейтерия, п - мезона, м - мезона. Найдены численные значения для постоянной тонко…
A new solvothermal method has been developed for preparing nanocrystalline titania powders by reacting titanium isopropoxide with acetic acid. The photocatalytic activity of a sample prepared at 250°C is shown to far exceed the activity of a commercially available sample.
The case area under study from geographical point of view is located in 35 15 to 33 30 and E from 48 30 to 47 00 and involve parts of Lorestan north western and Kermanshah south western parts which extends partly to Alashtar , Noorabad, Harsin and Kermanshah. This climatically and mountainous area has a cold and rainy…
A new type of shock absorber was designed. The shape memory alloy (SMA) bars were used as the kernel components for energy dissipation and restoration in the stress mode of pure tension. Their initial deformation was enlarged by the hydraulic system with two pistons of different sizes. In this way, high material utili…
Using the group chain methods, a rigorous algebraic model for describing the energy spectrum of the ammonia dimer (NH 3 ) 2 is constructed with an allowance for both the most important torsional and exchange nonrigid motions and the inversional nonrigid motion also taken into account. The model is rigorous in the sens…
The thermal conductivity (κ) behavior in La 0.75 Ag 0.25 MnO 3 manganites is investigated by probing the phonon, carrier and magnon scattering sources. The acoustic phonon contribution to the thermal conductivity (κph) is investigated within the Debye-type relaxation rate approximation. The scattering of phonon from d…
Owing to spandex silks are very thin and transparent, it is very hard to spot the broken warp without alarm during sewing or weaving. Therefore, the key to solve the problem is to shutdown and alarm timely when warps break. The ways and principles of common warp stop are analyzed in this paper, a new type of warp stop…
N Inoue, T Kaneko, D Edwards, D Guarrera, K Kawauchi; Introduction of a New Conventional SEM: JSM-IT300LV:The Observation of a Water Containing Specimen Wi
Calcium carbonate (CaCO3) was mineralized in N,N-dimethylformamide (DMF)-H2O mixed solvents in the presence of polystyrene-b-poly (vinyl pyrrolidone) (PS-b-PNVP) block copolymer. The morphologies of PS-b-PNVP micelles and CaCO3crystals were characterized by TEM and SEM. By varying the volume ratio of DMF-H2O, the CaCO…
In this paper, the mechanism of the combustion instability which may occur in a hybrid rocket motor with a diaphragm was studied. And the new design for a hybrid motor grain was suggested. It could increase a regression rate of solid fuel, and reduce a large pressure oscillation in a hybrid rocket motor with a diaphra…
Frédéric Voisard, Nicolas Brodusch, Hendrix Demers, Raynald Gauvin; Monte Carlo Simulation and Experimental High-Angle Annular Dark Field Tomography, Micro
Nanotechnology is an emerging field of engineering. Awareness needs to be fostered in the K-12 education system in order to sustain its expansion. As a current Algebra 1 teacher, I participated in the NASCENT research program to further my education in nanotechnology and find ways to integrate this content and practic…
Subarna Khanal, Nabraj Bhattarai, J Jesus Velazquez-Salazar, Miguel Jose-Yacaman; Study of Novel AuCu-Pt Trimetallic Multiply Twinned Nanoparticles with Hi
S B Vendelbo, C F Elkjær, I Puspitasari, J F Creemer, P Dona, L Mele, B Morana, BJ Nelissen, S Roobol, R van Rijn, S Helveg, P J Kooyman; Atomic-Scale Imag
Ferroelectric single crystals have excellent characteristics for ferroelectric probe data storage. However, it is difficult to make practically-available single-crystal media with a large area, and development of thin-film recording media is required. In this study Pb(Zr, Ti)O3(PZT) thin films are prepared and evaluat…
Wen Qian, Simon Flower, Lauren Keel, Jun Jiao; Asymmetric Decoration of Crystalline Graphene with Pt&TiO2 Nanocrystals as High-Efficient Photocatalyst,
A Schwedt, L Hensgen, J Dieckmann, A Klink, F Klocke, J Mayer; EBSD-Analysis of Microstructural Changes Below Wire-EDMed Surfaces, Microscopy and Microanal
P K Carpenter, J J Donovan; Quantitative Electron-probe Microanalysis and WDS Background Measurement, Microscopy and Microanalysis, Volume 20, Issue S3, 1
For more than seven decades, diffraction contrast in the TEM has been used for the study of both linear and planar lattice defects, such as dislocations, stacking faults, anti-phase boundaries, and so on. In recent years, several alternative approaches for defect imaging have become available: using a standard annular…
With the development of modern industry, more and more semiconductor-based devices have been used widely. Such equipment presents nonlinear impedance to the utility, generating large harmonic currents with well known adverse effects, such as low power factor, low efficiency and destruction of other equipment. Also, so…