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 dielectric properties of the Pb(Mg 1/3 Ta 2/3 )O 3 -Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 ternary systems were examined as a function of temperature. The split (002) or (200) X-ray diffraction patterns were in the 2 θ range of 43.5 ∼ 45.5° for xPb(Mg 1/3 Ta 2/3 )O 3 -(0.6-x)Pb(Mg 1/3 Nb 2/3 )O 3 -0.4PbTiO 3 indicating th…
Polish conferences on liquid crystals (LCs) (chemistry, physics and applications), organised by LC groups from Military University of Technology (Warsaw, Poland), have always been the significant e...
Fluorescence photoswitching in autofluorescencerich in vivo environments is demonstrated by Sehoon Kim, Chong Rae Park, and co-workers on page 5574. Nanoscopic dense integration between solid-state emission and photochromism provides nanococktails capable of photoswitching of bright NIR fluorescence with high on/off c…
The mechanism of CH4-CO2 free radical reforming was investigated by DFT and B3LYP methods. The gained results have indicated that the main dehydrogenation of CHx were lost hydroxide atom step by step.The form process of carboxyl was very easy. The decomposition of the carboxyl or the compound included carboxyl were di…
Honeycomb shaped monolithic Fe-β zeolite catalyst for N2O decomposition prepared by direct extrusion method was investigated. In this paper, we optimized the parameters of the molding process and studied the decomposition properties of the honeycomb catalysts. Monolithic materials could be extruded successfully only w…
A numerical simulation for DC PD in void is put forward based on the PD physical process. The finite difference method is used to calculate the electric field distribution, and both of the stochastic property and the accumulation of the charge after PD on the void surfaces are considering in the model. The time of PD…
To discuss the dynamic characteristics of the height of high-speed corrugated roller mechanism, the mathematical model of the corresponding upper and lower corrugator roll is established , introduce the corresponding convex curve equation. By theoretical calculation,we got 6 groups of upper and lower height of the cor…
This laboratory portrait is drawn to give a general view of the research and education on nuclear physics and technology at Peking University. Since Peking University (PKU) is the eldest and also one of the most prestigious modern universities in China, this portrait might be useful to look into China's effort to purs…
This paper describes the use of a suitable approach to teaching generalized magnetically coupled electric circuits as an introduction chapter to the electric machines modeling and simulation course for power engineering students. The teaching methodology focuses on some common concepts and fundamentals of electrical m…
The electrolytic stripping technique (also known as coulometric dissolution) was a method to analysis the phase structure of galvannealed coating quantitatively, but the experimental data of electrolytic stripping cannot be used for straightforward Fe-Zn phase identification, and because quantification needs to take i…
Real-time monitoring of the cure state of sprayed paint is important for industrial painting processes to determine appropriate leveling and drying times. Paints contain pigment, resin, solvent, and other additives. The solvent is generally conductive and is finally evaporated during the paint curing process, which re…
Four typical defects in GIS for PD detection are proposed, and the pulse, amplitude, phases, number of PD has been used to form the three-dimensional PQN matrix. Based on the PQN matrix, three two-dimensional distributions of Hqmax~Phi, Hqmean~Phi and Hn~Phi can be achieved. Then the new GK clustering method is introd…
In order to get clear cotton rustling sound signal, which will be analyzed to provide information at a certain stage of fabric processing for developing cotton products, before analysis of the data, it is the need for de-noising processing. The two de-noising methods, the median filtering method and the wavelet method…
This paper is to investigate the active variable stiffness control of cantilever beam under temperature field. Generic system equations of cantilever beam including all constitutive relations are defined. A cantilever beam structure under the temperature fields was modeled. Several control methods with SMA to compensa…
A novel photochromic diarylethene based on thiophene and a six-membered aryl moieties 1-(2-methyl-5-chloro-3-thienyl)-2-(2-trifluoromethylphenyl) perfluorocyclopentene has been synthesized. At the same time, its photochromic properties and fluorescence switch were investigated in detail. The results showed that this c…
In order to lower the switching losses and harmonic ratio, improve the precision of the STATCOM in the same time, the adaptive inverse control based on PAM+PWM method is proposed in this paper. The combination of PAM+PWM method is presented to enable the system to achieve the quality of low switching losses and good h…
Apparel marker making is also called apparel plates setting; it refers to the process of products marker making diagram design. The implement of marker making has to satisfy the design effect, production and other requirements; it also can be explained by putting various specifications of all garment plates for scient…
Inconel alloy 600 is widely used in applications requiring its excellent crevice corrosion resistance, e.g. with corrosive solutions. Cyclic polarization tests were carried out on Inconel work pieces immersed in a 5.5% NaCl solution at a temperature of 355 o C. One group of work pieces workpiece incorporated diamond p…
Hydrophilic photoluminescent CdTe/poly (1, 4-butanediol-citrate) (PBC) bioelastomer nanocomposite was successfully synthesized by a two-step method and characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Uv-vis spectroscopy, photoluminescence (PL) spectroscopy and scanning electr…
A new unsymmetrical photochromic diarylethene 1a was synthesized and its photochromism were investigated. The compound exhibited good photochromism in solution with alternating irradiation by UV/Vis light, and the maxima absorption of its closed-ring isomer is 542 nm. The open-ring isomer exhibited relatively strong f…