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。
T. D. Wilkinson and co-workers demonstrate a hybrid liquid crystal/carbon nanotube-based device which shows the capacity to perform as a switchable diffraction grating. On page 368, a liquid crystal layer is sandwiched between two electrodes (patterned into gratings). The bottom electrode consists of a 2D square array…
For the first time near infrared (NIR) luminescence of Bi-doped media was observed in 2001 by Fujimoto et al. in silicate glasses. A lot of various Bi-centres that could be responsible for observed NIR luminescence were suggested but there are more and more evidences that it originates from some of low-valence bismuth…
Tension tests on T700/EXOPY unidirectional laminates and 3-D and six-directional braided composites single-lap adhesive joints with different adhesive types under uniaxial tensile loading are performed in the presented paper. Failure modes, strengths and load-displacement curves of two kinds of different adhesive join…
Summary form only given. Metallic wire grids (WG) are popular terahertz (THz) polarizing elements. For freestanding structures, the near perfect properties of metals provide high transmission efficiency and extinction ratio over a wide frequency range. For substrate-supported structures however, these nearly ideal pro…
Summary form only given. As a promising approach to laser nanoprocessing, much interest has been focused on the self-organized, periodic surface nano structure s that are often observed in the femtosecond (fs) laser ablation experiment [1], while the ultrafast interaction poses a significant challenge to controlling t…
The research of anharmonic effects is essential for the design of nonlinear acousto-electronic devices. Such effects involve the generation of nonlinear second harmonics in propagation of normal electroelastic waves in crystal plates. Thereby the analytical and numerical technique of the analysis of small nonlinear an…
In order to study the physics mechanism of surface etching process in low pressure plasmas, we propose a method to optimize etching yield model, which combines optimization technology with surface evolution algorithm. In plasma etching process, the surface effect of the ions are controlled by etch yield which may be m…
The diamond-like carbon films were prepared by filtered cathodic vacuum arc system. Surface morphology and microstructure of the films were investigated by atomic force microscope and Raman spectrum. The field emission properties of the film were tested under vacuum condition, and the turn-on field was found to be 1.3…
Here, we will focus on electric field phase evolution along the structure in this specific excitation configuration. Phase evolution is obtained from near-field measurement (SNOM), and numerically analyzed thanks to finite difference time domain (FDTD) simulations.
We report on the experimental demonstration of a new radiation phenomenon on the nanoscale and its engineering into a reconfigurable metadevice: luminescence emission lines within the Fermi sea can be created by nanopatterning metal surfaces and tuned by external electrical inputs.
This paper considers correlation between the estimates of the probability of failure of elements of structures and the safety factors used in deterministic calculations. It is shown that certain interpretations of the terms “minimum values of mechanical characteristics” and “maximum loads” allow us to obtain estimates…
Critical chromatography is used to study the kinetics of reactions between polypropylene glycols and phenyl butyl isocyanate that simulate the production of polyester urethanes. The use of a two-detector version of chromatography makes it possible to monitor the concentration of the original, intermediate, and final o…
The paper will present two possible ways of including a different high-contrast-grating (HCG) into a 980 nm vertical cavity surface emitting lasers (VCSEL). The device is composed of a GaAs cavity with five InGaAs quantum wells (QWs) at the center. The back mirror consists of 31 graded AlxGa1-xAs pairs with Al concent…
Cet article présente l’état des lieux du développement de la filière des réacteurs à neutrons rapides refroidis au gaz. Cet état des lieux est partagé au sein du Forum International Génération IV et d’EURATOM autravers du projet GoFastR du 7ème programme cadre. Les domaines considérés comprennent le combustible et les…
By using finite element software, the paper establishes the main stand analysis model of the Ф140 pipe rolling mill and provides the model analysis of main stand in cases of full load. Verify the design of main stand fully comply with the technical requirements .In this paper, it provides the theoretical position of s…
In this work, two novel azo-benzene substituted polyhedral oligomeric silsesquioxanes (POSS) compounds having m =4 and m = 10 in order to check their nonlinear optical properties when dissolved in common nematic mixture E-7 were synthesized. The method of optically induced birefringence of LC or so called Optical Kerr…
W-doped Vanadium oxide thin films were prepared on the substrates of SiO2 glass, float glass and Si (100) by reactive magnetron sputtering after annealing in vacuum. The structure, morphology and phase transition were characterized by X-ray diffractometer, atomic force microscopy (AFM) and differential thermal analysi…
In this work we present a carbon nanotubes electron source assembled with a low cost technique. We used a carbon nanotube cathode that reached the remarkable current density of 0,6 A/cm2. The cathode has been assembled with an external grid in a compact electron source that achieved a maximum output current density of…
Summary form only given. Embedded silver nanoparticles in glasses have raised a wide interest recently. One fabrication technique for these, which is used in this combination only in recent years, is by using field-assisted ion exchange from a metallic silver film, followed by annealing in air atmosphere. The first st…
The acoustic field generated by a distribution of micro-bubbles serving as contrast agents for a three-dimensional scattering volume is evaluated. A dual-frequency incident field generated by a confocal transducer insonifies the target and creates a scattered field that includes the difference frequency component that…