Huzhou Vocational Technology College

Huzhou, China

Huzhou Vocational Technology College

Huzhou, China

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Lou X.Y.,Huzhou Vocational Technology College
Advanced Materials Research | Year: 2014

The tracked combine agricultural machinery is a most complex in structure, high technology content, the manufacture technology of very strict requirements of product. Our crawlers combine 1/3 of the fault from the walking gear system in operation. This paper adopts the planetary wheel transmission, because it has the advantages of compact structure, small volume, large transmission ratio, torque / volume ratio, high efficiency, and high reliability, meet the structure and characteristics of the combine harvester. This technology can save the transmission assembly, avoid the fault of gearbox assembly; improve the combine harvester of paddy field through. © (2014) Trans Tech Publications, Switzerland.


Lou X.Y.,Huzhou Vocational Technology College
Advanced Materials Research | Year: 2014

Virtual reality modeling language (VRML) system is a new type of human-computer interaction system. It also is the development direction of modern mechanical design. This paper expounds the characteristics of VRML, presents the key technology of VRML from the mechanical product development mode, and it probes into the VRML research direction. © (2014) Trans Tech Publications, Switzerland.


Lou X.Y.,Huzhou Vocational Technology College
Advanced Materials Research | Year: 2014

In this paper, Step-less speed regulation system using double reversible variable pump and double quantitative motor, since the middle of no other control valve, the hydraulic pump and hydraulic motor with high efficiency. To meet the tracked combine and walking machines because of their own characteristics has the advantages of compact structure, light weight, high efficiency, high reliability, and other requirements of the system. © (2014) Trans Tech Publications, Switzerland.


Lou X.Y.,Huzhou Vocational Technology College
Advanced Materials Research | Year: 2014

The concept design of green products is according to the various phases of the product life cycle, product function to create and functional decomposition, to meet the principle of solving functional requirements and Realization of the idea and the system design principle of vector scheme of function structure. The conceptual design process is a process of divergent thinking and innovative design, the optimal process plan. Therefore, the conceptual design stage is a very innovative design stage, is also the green design is the most important stage. © (2014) Trans Tech Publications, Switzerland.


Chen S.-H.,Huzhou Vocational Technology College
Physica E: Low-Dimensional Systems and Nanostructures | Year: 2011

Cyclotron resonance of magnetopolarons bound to a Coulomb impurity in a two-dimensional (2D) parabolic quantum dot (QD) is studied within a variational calculation for all coupling strengths. The LeeLowPinesHuybrecht variational technique that was developed previously for all coupling strengths has been extended for polarons in a magnetic field. The dependence of the cyclotron resonance masses on the magnetic field, the confinement length, the electronphonon coupling strength and the Coulomb binding parameter is investigated. © 2010 Elsevier B.V. All rights reserved.


Chen S.-H.,Huzhou Vocational Technology College
Journal of Low Temperature Physics | Year: 2013

Within the framework of the Landau-Pekar variational method we have derived an analytical expression for the ground-state binding energies and the effective mass of an electron bound to a Coulomb impurity in a polar semiconductor quantum dot (QD) with parabolic confinement in both two and three dimensions. We have also calculated the number of phonons in the cloud of this bound polaron. It is found that the effective mass increase with increasing the Coulomb binding parameter and increase with the decrease in size of the QD. The results also indicate that this effect becomes much more pronounced with decreasing dimensionality. © 2012 Springer Science+Business Media, LLC.


Chen S.-H.,Huzhou Vocational Technology College
Journal of Low Temperature Physics | Year: 2010

The ground-state (GS) binding energies of a magnetopolaron bound to a Coulomb impurity in a two-dimensional parabolic quantum dot (QD) are studied within a variational calculation for all coupling strengths. The Lee-Low-Pines-Huybrecht variational technique that is developed previously for all coupling strength has been extended for polarons in a magnetic field. The dependence of the GS binding energies on the magnetic field, the confinement length, and the Coulomb binding parameter is investigated. © 2010 Springer Science+Business Media, LLC.


Chen S.-H.,Huzhou Vocational Technology College
Physica B: Condensed Matter | Year: 2011

A variational approach is employed to obtain the ground and the first excited state binding energies of an electron bound to a hydrogenic impurity in a polar semiconductor quantum dot (QD) with symmetric parabolic confinement in both two and three-dimensions. We perform calculations for the entire range of the electronphonon coupling constant and the Coulomb binding parameter and for arbitrary confinement length. It is found that the binding energy of ground and first excited state is larger in a two-dimension (2D) dot than in a three-dimension (3D) dot and this trend is more pronounced with the increase of the electronphonon coupling constant for the same value of the Coulomb binding parameter and confinement length. Furthermore, the ground and the first excited state binding energy increases with increasing the Coulomb binding parameter in both 2D and 3D QDs for the same electronphonon coupling constant. © 2011 Elsevier B.V. All rights reserved.


Yao Q.-Z.,Huzhou Vocational Technology College | Chen S.-H.,Huzhou Vocational Technology College
Journal of Low Temperature Physics | Year: 2011

A Landau-Pekar variational theory is employed to obtain an analytical expression for the polaronic correction to the ground state energy and the effective mass of an electron confined in a symmetric quantum dot potential in polar semiconductor in both two and three dimensions. It is found that polaronic correction is more pronounced in two dimension than that in three dimensional one and increases with the decrease in size of the quantum dot. © Springer Science+Business Media, LLC 2010.


Chen S.-H.,Huzhou Vocational Technology College
Journal of Low Temperature Physics | Year: 2014

The linear and nonlinear optical properties considering polaron and Coulomb impurity effect in a GaAs parabolic quantum dot are investigated theoretically. Calculations have been performed by using the compact density-matrix approach and the Lee-Low-Pines-Huybrecht variational technique for all electron-LO-phonon coupling strengths. The dependence of the optical absorption coefficients on the incident photon energy, the Coulomb potential and incident optical intensity is also studied. © 2014 Springer Science+Business Media New York.

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