282 Result(s)
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Chapter
Yu** Zhou
Characterization and Evaluation of Materials
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Chapter
A Problem of the Heat Conduction Equation with a Moving Boundary in Three-Dimensional Space, E3
It is well known that a parabolic partial differential equation for the case of a moving boundary can describe some moving-boundary problems in different fields of science and technology. In this paper, we giv...
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Chapter and Conference Paper
The Miniature Neutron Source Reactor (MNSR) a Private Nuclear Tool
In view of the problems faced by large and medium research reactors, we have developed and constructed the prototype of Miniature Neutron Source Reactor in 1984. During 2 years operation, the MNSR has demonstr...
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Chapter
Experiments on Heavy Electron and High Tc Oxide Superconductors
Two classes of superconducting materials, heavy electron superconductors (frequently referred to as “heavy fermion superconductors”)1,2 and superconducting oxides, 3 have attracted a considerable amount of attent...
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Chapter
Pulse Tube with Axial Curvature
Experiments are.made to compare the performance of coiled pulse tubes with those of straight ones having similar cross sections, lengths and operating conditions. The performance degradation of coiled pulse tu...
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Chapter
Structural Performance of GRP Pipes with Mixed Wall Construction
In this paper, a new kind of GRP pipe with a polymer concrete core, named a GRPPC pipe, is designed and the manufacturing process is concisely described as well Based on various contrasting analytical methods ...
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Chapter
A High Resolution Scintillating Fiber Gamma-Ray Telescope
A large variety of Compton and pair production gamma-ray telescopes using scintillator blocks coupled to vacuum photomultiplier tubes has been built earlier for space based experiments.1,2 In these telescopes the...
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Chapter
Progress for SSC
The charged particle beam in the accelerator is kept on its orbit by powerful dipole magnets. The dipole magnets for large accelerators are often made of superconductors for technical and economical reasons. B...
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Chapter
Magnetic Shielding Properties and Preparation of YBaCuO Superconducting Tubes
Superconducting magnetic shelding is very important for the application of superconducting devices such as dc and ac SQUID. The shields made of high Tc superconductors become one of their most important applic...
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Chapter
Effects of Annealing Treatment of Superconductivity in Powder Sintered YBCO
The effects of annealing treatment on superconducting properties of YBCO bulk samples prepared by powder sintering have been reported and discussed. In the annealing temperature (TA range from 525 to 750°C, the s...
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In Situ Epitaxial Growth of the Gd-Ba-Cu-O Superconducting Thin Films on (100) LaAlO3 by Dc-Magnetron Sputtering Using Single Planar Target
We report in situ epitaxial growth of the GdBa2Cu3O7 superconducting thin films on (100) LaA103 single crystal substrates by dc-magnetron sputtering using single planar target. The best films had Tco of 92.5K, tr...
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Chapter
Preparation of Bi(Pb)-Sr-Ca-Cu-O Thin Films With Tc(Zero) at above 100K
Superconducting Bi(Pb)-Sr-Ca-Cu-O thin films are prepared on single crystal (100) MgO substrates by oxygen reactive ion beam sputtering. All the films are deposited at 400°C and annealed between 830–870°C. Ann...
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Chapter and Conference Paper
Use of Arbitrary Yield Functions in FEM
Many standard yield functions allow derivation of closed-form equations relating the effective strain rate to principal strain rates. Such yield functions are easily implemented in finite element modeling (FEM...
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Chapter
Singularities in Complex Interface Dynamics
The motion of the interface between two fluids in a quasi two-dimensional geometry is studied via simulations. We consider the case in which a zero-viscosity fluid displaces one with finite viscosity, and comp...
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Chapter and Conference Paper
The Study of Fracture Toughness of Bohai Sea Ice
The evaluated method in engineering for ice load caused by the interaction of ice and structures is according to the compressive strength of ice. The test of interaction of ice and piles indicated that the maj...
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Chapter and Conference Paper
Behaviour of Textured FCC Sheet Metals
The simulation of texture evolution and the stress-strain response of FCC sheet metals is considered. A rate-sensitive crystal plasticity model is employed and results are presented for certain textures and de...
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Chapter
Solid Polymer Electrolytes of Lithium Salts and Polyethylene Glycols Cross-Linked with a Siloxane-Based Tetraisocyanate
Solvent free polymer electrolytes were synthesized by dissolving lithium Perchlorate and lithium triflate in networks or polyethylene glycols (MW 200–6,000) and a tetrafunctional aliphatic isocyanate. Thermal ...
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Chapter
Photolithographic Plating of Platinum and Copper on Insulating Substrates
Several micrometer thick layers of platinum or copper can be photolithographically deposited on Mylar or silica substrates by taking advantage of the photochemistry of [PtCl6]2− in alcohols. This reaction gives r...
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Chapter
Passive Intracavity Stabilization of Wide Gain Laser by Er3+-Doped Materials
We show that intracavity Er3+-doped materials can be used to stabilize wide gain lasers against temperature and pum** variations.
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Chapter
A Study on HA-Coated Titanium Dental Implants Part I: Stress Analysis of Dental Implant
The stress distributions around four kinds of endosteal implants were calculated by using three dimensional finite element stress analysis. Lower stress concentration in the cresteal bone region and the most u...
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Chapter and Conference Paper
AC Hysteresis Loss, Lower Critical Field, and Critical Current Density at 77 K in Melt Processed YBa2Cu3O7−δ Wires and Rods
The AC hysteretic loss at 77 K in three samples of melt-processed YBa2Cu307-δ (YBCO) rods and wires has been measured over a wide range of applied field sweep amplitudes, Hm, using vibrating sample magnetometry. ...
