341 Result(s)
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Article
Flow stress behavior of Cu13Zn alloy deformed at elevated temperature
The flow stress behavior of Cu13Zn alloy was investigated by compression tests carried out at 650 °C, 700 °C, 750 °C, 850 °C, and constant strain rates of 0.05 s−1, 0.1 s−1, 0.5 s−1, 1 s−1, 5 s−1, respectively. T...
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Article
Structure transition of nano-titania during calcination
In order to study the structure transition during calcination, nano-titania powders prepared by hydrolyzing precipitation approach and calcined at 300, 400, 500, 600 and 700 °C were characterized by XRD, TEM a...
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Article
A new technique of combining accretion by cyclone separator and scattertube for tailings dams
A new technique of combining accretion by cyclone separator and scattertube for tailings dams was developed according to laboratory experiment, model experiment and spot experiment technology. Three tailings d...
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Article
Kinetics for static recrystallization after hot working of 0.38C-0.99Cr-0.16Mo steel
The restoration mechanisms for static recrystallization of work-hardened austenite were investigated by using double-pass compression tests performed on medium-carbon steel containing chromium and molybdenum. ...
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Article
Features of energy distribution for blast vibration signals based on wavelet packet decomposition
Blast vibration analysis constitutes the foundation for studying the control of blasting vibration damage and provides the precondition of controlling blasting vibration. Based on the characteristics of short-...
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Article
Numerical analysis of application for induction caving roof
New method for handling roof of the base successive mining is proposed, which is induction caving in the roof. The key is that it is made certain to the station of the space-time in the induction caving roof, ...
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Article
Mechanism of apoptosis of human osteosarcoma M-G63 induced by arsenic trioxide
Objective To observe the apoptosis of osteosarcoma MG-63 cells induced by As2O3 and to explore its possible mechanisms. Methods The flowcytometric analysis and transmission electronmicroscope were performed to in...
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Article
Rheological behavior of continuous roll casting process of aluminum alloy
The rheological behavior of aluminum alloy and its influencing factors in physical simulation of continuous roll casting process were studied by using a Gleeble-1500 thermal-mechanical simulation tester with a...
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Article
Heat transfer law in leaching dump
Based on the law of temperature changes in the leaching dump and the forming process of heat flux, the basic balance equation of heat flow in dump was established, the dissipated heat flow from dump to the atm...
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Article
Heat Treatment of Die and Mould Oriented Concurrent Design
Many disadvantages exist in the traditional die design method which belongs to serial pattern. It is well known that heat treatment is highly important to the dies. A new idea of concurrent design for heat tre...
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Article
Hybrid optimization model of product concepts
Deficiencies of applying the simple genetic algorithm to generate concepts were specified. Based on analyzing conceptual design and the morphological matrix of an excavator, the hybrid optimization model of ge...
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Article
Electromagnetic Dam in Twin-Roll Strip Caster
The electromagnetic dam (EMD) in twin-roll strip caster was simulated with FEM. The results show that the direction and magnitude of Lorentz force distributing in the EMD changed in a period. The negative part...
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Article
Influence of maximum decking charge on intensity of blasting vibration
Based on the character of short-time non-stationary random signal, the relationship between the maximum decking charge and energy distribution of blasting vibration signals was investigated by means of the wav...
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Article
Simulation of people’s evacuation in tunnel fire
The simulation model Tunev(tunnel evacuation) was developed for people’s evacuation in tunnel fire. It contains simple database of the people’s behavioral reaction and structure characteristic parameters of tu...
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Article
Behavior of Transversal Crack on Slab Corner During V-H Rolling Process
The behavior of transversal cracks on the surface of the slab corner during vertical and horizontal (V-H) rolling process with flat vertical roll and groove vertical roll was simulated by explicit dynamic fini...
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Article
Analysis of Temperature Field and Thermal Crown of Roll During Hot Rolling by Simplified FEM
Thermal crown of roll is an important factor, which affects strip profile. It is necessary to analyze the temperature field and thermal crown of roll for hot strip mill. A new simplified finite element method ...
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Article
A mesomechanical ductility model of SiCp/Al composite
Based on tensile cracking of SiCp and decohesion of the interface between SiCp and Al matrix, a mesome-chanical model for tensile deformation of SiCp/Al composites was developed. The microcracks and multi-scale s...
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Article
Control-oriented dynamic fuzzy model and predictive control for proton exchange membrane fuel cell stack
Proton exchange membrane fuel cell (PEMFC) stack temperature and cathode stoichiometric oxygen are very important control parameters. The performance and lifespan of PEMFC stack are greatly dependent on the pa...
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Article
Finite element method of a kind of new variational principle
A new variational principle is used to establish more reasonable finite element method, which set no limits to physical equations, that is, appropriate to general situations including elasticity, plasticity an...
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Article
Optimal interval of tunnel with small spacing considering visco-elastic plasticity
Based on different surrounding rock classifications, the numerical simulation of visco-elasto-plastic surrounding rock was studied for three roadway tunnels with small spacing, especially analyzing the visco-e...
