139 Result(s)
within
English
Engineering
Life Sciences, general
Materials Science, general
Yi**g Yong
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Article
Study on microstructures and properties of several kinds of hot working die steel
This paper deals with the microstructures and properties of AISI H13(4Cr5MoSiV1), UHB QRO 90M and 4Cr3Mo2V steels, and then discusses the means of improving the service life of hot working die. The results sho...
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Article
Synthesis of lanthanide β-diketonates by solid state reaction at low heating temperature
Solid state reactions between β-diketones (HPMBP, HDBM) and LnAc3 · xH2O(La,Nd:x=3/2; Tb:x=4) have been investigated at low heating temperature. Pure compounds of Ln(PMBP)3 and Ln(DBM)3 are obtained by solid stat...
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Article
Characteristics of the three-dimensional fluorescence spectra of fossil fuels
We have found some fluorescence characteristics of fossil fuels based on the contour maps of the three-dimensional fluorescence spectra of their non-quenching samples. The common fluorescence characteristic is...
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Article
A novel current sensor technique for brushless DC motor drives
The torque output in a permanent magnet brushless DC motor (BLDCM) is usually controlled by regulating the motor phase currents. In this paper, three kinds of PWM strategies together with some critical review ...
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Article
Recrystallization and precipitation behavior during the hot deformation of Nb-Ti microalloyed steels
Constant strain rate compression tests at the temperature 900∼1100 °C and the strain rate 10−3∼20 s−1 and the interpass time 300∼1000 s of double stage interrupted tests were carried out for a microalloyed steel ...
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Article
Attractors of weakly damped forced KdV equations with external periodic excitation
Consider the KdV equations with the external periodic excitation u t+uu x+u xxx+γu=f(t), with f(t+T)=f(t). Prove the existence of attractors of resulting discrete s...
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Article
Spectral characterizations of veronese surface in S 4
In this paper, we prove that the Veronese surface can be determined by the 1-spectrum of the Laplace operator.
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Article
Photon acceleration based on laser-plasma
One dimensional electron density perturbation is derived by using the cold fluid equation, Possion’s equation and the continuity equation. The perturbation is generated by a driving laser pulse propagating thr...
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Article
Structural aberrations of cellular sialic acids and their functions in cancer metastases
Sialic acids (neuraminic acids) are a special series of 9-carbon ring negatively charged carbohydrates, which has been found to be selectively changed in malignant cells from structures (both synthesis and str...
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Article
Study on moving principle of colonoscopic robot
The moving principle of a colonoscopic robot is presented in this paper. The robot mainly consists of soft mobile mechanism for earthworm locomotion and turning mechanism based on shape memory effect. The soft...
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Article
Research on a rigid rotor-sliding bearing system with a squeeze film damper
In this paper, a dynamic model on a rigid rotor-sliding bearing system with a SFD is established. The stability and bifurcation behaviors of the system are studied. On the basis of the differential equations o...
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Article
Experimental study on decolorization and degradation of reactive brilliant red X-3B in a white rot fungal biofilm reactor
Experimental results of an azo dye (reactive brilliant red X-3B, RBR X-3B) decolorization and degradation in a white rot fungal biofilm reactor were introduced and discussed. The fungal biofilm reactor is high...
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Article
C0-semigroup method of the density evolution equation for M/M/∞ model
In this paper, the existence, uniqueness, and asymptotic behavior of the solution of the density evolution equation for M/M/∞ model was studied by the semigroup theory of linear operators.
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Article
The phase transition of syndiotactic polystyrene induced by electrostatic field
The crystal structure and morphology of syndiotactic polystyrene (sPS) melt-crystallized in various electrostatic fields have been investigated by using wide angle X-ray diffraction (WAXD), differential scanni...
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Article
Multi-photon ionization in background of plasma
Multi-photon ionization (MPI) in plasma is examined in terms of optical metric, and the quantum Volkov state in curved space-time is derived. The cross section of MPI is derived by virtue of the corrected Volk...
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Article
Operator semi-group of density evolution equation for a repairable redundant system with two same components
For a repairable redundant system consisting of two same components with exponential lifetime and general repair time distribution, the probability densities of the system in some state at time t were determined ...
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Article
Charge/discharge hysteresis characteristics of an amorphous Mg50Ni50 hydride electrode
The hydrogenation/dehydrogenation thermodynamic properties of a Mg50Ni50 alloy synthesized by mechanical alloying is measured by electrochemical method, and serious hydrogenation/dehydrogenation hysteresis charac...
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Article
A matlab-based simulation for hybrid electric motorcycle
This paper presents a simulation and modeling package based on Matlab for a parallel hybrid electric motorcycle (HEM). The package consists of several main detailed models: internal combustion engine (ICE), mo...
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Article
A bit progress on word-based language model
A good language model is essential to a postprocessing algorithm for recognition systems. In the past, researchers have presented various language models, such as character based language models, word based la...
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Article
Inhibition of probimane on lipid peroxidation of rabbit and human erythrocytes
Lipid peroxide (LPO) plays pivotal roles in the process and development of many diseases. In this work, we studied the inhibitory effect of probimane (Pro), a Chinese anticancer agent, on erythrocyte LPO and t...
