163 Result(s)
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Article
**yang Zhou
Engineering
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Article
Size and magnetic field dependence of strong coupling magnetopolaron in quantum dot
By using the variational method of Pekar type, the ground state and the first excited state of the strong coupling magnetopolaron in cylinder-shape quantum dot are considered. The results show that, with the i...
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Article
Prosodic modification of Chinese speech based on sinusoidal model
Modification on time-scale and pitch-scale of Chinese syllable based on sinusoidal model is presented in this paper. Firstly, the short-term speech is decomposed into a sum of sinusoidal waves of different mag...
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Article
Energy levels of strong coupling magnetopolaron in quantum dot
By using variational method of Pekar type, we have studied the energy levels of strong coupling magnetopolaron in disk-shape quantum dot(QD) and quantum well(QW). Our results show that, with the increasing mag...
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Article
Fe2O3 as indicator of heavy metal enrichment in Zhujiang (Pearl River) estuary sediments
A part of the heavy metals in estuary and coastal zone occurs naturally in the environment; the other part is due to human activity; so the directly measured concentration of heavy metal does not automatically...
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Infrared measurement and simulation of magnesium alloy welding temperature field
The welding temperature field of magnesium alloy AZ31 welded by TIG was measured with the uncooled infrared (IR) thermal imaging technology. The variables in the mathematic mode of welding temperature fields w...
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Article
Thermodynamics Behavior of Titanium for BOF Smelting Bearing Steel
When titanium element appears in bearing steel, it is very easy to create titanium nitride inclusion, which reduces the fatigue life of bearing steel. Based on the production data of bearing steel produced by ...
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Mechatronic integration and implementation of in situ multipoint temperature measurement for seafloor hydrothermal vent
In order to provide firsthand reference data for model building and analysis of temperature field of seafloor hydrothermal vent, a temperature measurement system is designed, which can be used to measure the t...
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Lagged strain of laminates in RC beams strengthened with fiber-reinforced polymer
Based on the theory of concrete structure, a new expression was derived for lagged strain of fiber-reinforced polymer (FRP) laminates in reinforced concrete (RC) beams strengthened with FRP. The influence of d...
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Thermal stability and oil absorption of aluminum hydroxide treated by dry modification with phosphoric acid
The dry modification of aluminum hydroxide powders with phosphoric acid and the effects of modification of technological conditions on thermal stability, morphology and oil absorption of aluminum hydroxide pow...
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Preparation of precursor for stainless steel foam
The effects of polyurethane sponge pretreatment and slurry compositions on the slurry loading in precursor were discussed, and the performances of stainless steel foams prepared from precursors with different ...
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Factors influencing HPAM solution viscosity prepared by produced water using orthogonal method
The effect of temperature and metal ion components on the viscosity of HPAM solution was studied by means of orthogonal method. Five factors and 4 levels were considered for the orthogonal design. The five fac...
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Mechanism of sulfide effect on viscosity of HPAM polymer solution
The effect of sulfide on HPAM solution viscosity was studied using BROOKFIELD DV-II viscometer, and the interaction mechanism was discussed. The HPAM solution viscosity was investigated through fully reducing ...
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Article
Viscoelastic rheological property of different types of polymer solutions for enhanced oil recovery
The capability of hydrophobic association polymer (HAPAM) to displace oil is different from that of hydrolyzed polyacrylamide (HPAM) because they have different rheological properties. The viscoelasticity of f...
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Article
Variable stiffness and dam** magnetorheological isolator
This paper presents the development and characterization of a magnetorheological (MR) fluid-based variable stiffness and dam** isolator. The prototype of the MR fluid isolator is fabricated, and its dynamic ...
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Creep and recovery behaviors of magnetorheological elastomers
This paper presents experimental and modeling study of creep and recovery behaviors of magnetorheological elastomers (MREs) under constant stresses. Experimental study was accomplished using a rheometer with p...
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Numerical simulation of coupled heat-fluid transport in freezing soils using finite volume method
A solution procedure using finite volume method has been established for the coupled heat-fluid transport model of freezing soils, and details about determination of the time step interval and discretization a...
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Article
Design of Millimeter Wave Wideband Transition From Double-ridge Waveguide to Coaxial Line
In this paper, an improved design method of millimeter wave wideband transition from double-ridge waveguide to coaxial line is introduced. The proposed design is based on the mode conversion theories and imped...
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Article
Explore the possibility of forming fcc high entropy alloys in equal-atomic systems CoFeMnNiM and CoFeMnNiSmM
The multi-principal high-entropy alloys (HEAs) are promising new alloys. However, it is a challenge to screen out the suitable composition from the diverse combinations. Referring to the prototype AuCu3 with AB3-...
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Carbonaceous mesophase spherule/activated carbon composite as anode materials for super lithium ion capacitors
A series of carbonaceous mesophase spherule/activated carbon composites were prepared as anode materials for super lithium ion capacitors using carbonaceous mesophase spherules as the core materials and pitch ...
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Article
Numerical Simulation of Batoid Locomotion
The hydrodynamics of batoid swimming motions is investigated using the three-dimensional simulation of a self-propelled body in still water. The kinematics of batoid swimming is characterized by large amplitud...
