反射式三角形光纤探头的光强分析

在几何光学原理的基础上，对反射式三角形光纤探头的光学特性进行了理论上的研究，得出了反射光强与三角形光纤探头顶角角度之间的理论关系。     

电机定子冲模的新型制作方法

近年来,在绝大多数的模具制造企业中,电火花、线切割设备已经是必备设备。该类设备的高精度加工手段已完全可以取代低熔点合金固定模具的方法。因此,在模具专业教学中,我们采用新型固定法讲授电机定子模具的固定具有较现实的意义。前不久,我院机电实训中心接到某厂一副电机定子模具的制作业务,结合该业务加工,我们制定了一套采用新型固定法的加工工艺。     

第二产业人才培养的探索与实践

主要总结学院多年来在第二产业人才培养方面的经验,力图构建与二产发展相适应的高职人才培养模式框架.     

Mobility in Driven Frenkel-Kontorova Model

The transport properties in a kind of simple system are studied within the framework of a generalized Frenkel-Kontorova model where the chain is composed of two kinds of atoms. Its studied mobility includes two aspects: the velocity mobility Bv and the momentum mobility Bm. The effective system temperatures for the two subchains, T^1 r and T^2 r are defined, respectively. For the underdamped, the regime of nonlinear response becomes wider and more “steps“ occur when the value of m increases. For m=1,T^1 r(F)=T^2 r(F),For m＞1,T^1 r(F)＞T^2 r(F)and the difference inereases with the inerense of m. The momentum transport,at[on shows very different behavior from that of the velocity transportation. Within a prescribed intermediate “steps“ of Bv(F) or Bm (F), both of them dccrecase with the increase of F and Bm (F) decrenses more quickly. For the case of overdmnping and nonzero temperature, the hysteresis interval becomes thinner and the transitions become smoother. The increase of m makes the hysteresis thinner and the transitions smoother. When T is high, all the trmasitions are snlearcd out, and the diatomie effects become unimportant,We expect these re.suits contribute to the understanding of the atomic processes occurrlng at the interface of two materials when they are brought together and moved with respect to one another.