县域经济发展中的居民消费研究

居民消费在县域经济发展中处于怎样的情况,文章就平鲁区居民消费的基本情况进行了分析.     

VOD法冶炼铁素体不锈钢的碳氮控制

文章介绍太钢第二炼钢厂利用K—OBM—S—VOD法生产超低碳铁素体不锈钢工艺特点，并对此类钢中409L型铁素体不锈钢在VOD法冶炼过程中的碳氮控制进行了总结研究。     

浅析如何加强电大的校园文化建设

当前,电大的发展面临严峻的挑战,如何在激烈的市场竞争中走出困境,长足发展,针对电大教育对象等几个方面的特殊性,文章从加强校园文化建设入手,在办学理念、加强校园网络文化建设、开展丰富的校园文化活动等几个方面作了实践性思考.     

“范式转换”与舞蹈学学科扩展

"范式转换"理论作为一种方法论,被其他学科领域借鉴来厘清所从事领域的发展、变迁路径以及把握其领域的未来走向。舞蹈学学科的扩展与多元发展也同样可用"范式转换"理论来解释并寻得探究的方法。舞蹈学学科范式的转换、舞蹈学学科对象、舞蹈学学科视角多元化几方面的阐述,说明在学科的建立和学术研究上不仅要有"范式的转换"的与时俱进,也应该有因地制宜的地方化特点,要尊重文化的差异性,提倡文化平等、多元。     

Interior penalty bilinear IFE discontinuous Galerkin methods for elliptic equations with discontinuous coefficient

<正> This paper applies bilinear immersed finite elements (IFEs) in the interior penalty discontinuousGalerkin (DG) methods for solving a second order elliptic equation with discontinuous coefficient.A discontinuous bilinear IFE space is constructed and applied to both the symmetric and nonsymmetricinterior penalty DG formulations.The new methods can solve an interface problem on a Cartesianmesh independent of the interface with local refinement at any locations needed even if the interfacehas a nontrivial geometry.Numerical examples are provided to show features of these methods.     

Positive observer design for positive Markovian jump systems with partly known transition rates

The paper is concerned with positive observer design for positive Markovian jump systems with partly known transition rates. By applying a linear co-positive type Lyapunov-Krasovskii function, a sufficient condition is proposed to ensure the stochastic stability of the error positive system and the existence of the positive observer, which is computed in linear programming. Finally, an example is given to demonstrate the validity of the main results.     

Tunable water-based lubrication behavior of alkyl- and fluoroalkyl-silanes

In this paper,we report the tribological properties of self-assembled molecular(SAM) films of fluoroalkylsilanes and non-fluoroalkylsilanes,with different chain-lengths,adsorbed on Si substrate surfaces by covalent bonds.The SAM films were characterized using a universal ball-disk experimental tester in aqueous solutions.The substrate surface was examined by X-ray photoelectron spectroscopy(XPS),and the SAM films adsorbed on the Si surfaces were inspected by contact angle measurements and XPS.Lubrication studies revealed that several kinds of fluoroalkylsilanes had similar friction coefficients;the small differences were attributed to the chain flexibility.In contrast,differences in the aqueous lubrication properties of SAM films of non-fluoroalkylsilanes were clearly identified.It is suggested that substitution with fluorine atoms and the surface affinities of fluoroalkylsilanes contributed to redistribution of surface changes,causing variations in lubrication behaviors.     

大学生思想政治教育工作加强人文关怀和心理疏导的思考与实践

做好当前的学生思想政治教育工作,必须注重强化人文关怀和心理疏导,实施经济资助与关"心"服务并举,建立分类引领、全员参与、覆盖全程的人文关怀教育机制,营造出全员、全过程、全方位、全环节育人的良好氛围,彰显教育效果、和谐校园,从而培育出全面发展的人才。     

Continuity of solution mappings for parametric generalized set-valued weak vector equilibrium problems

This paper obtains some stability results for parametric generalized set-valued weak vector equilibrium problem. Under new assumptions, which do not contain any information about solution mappings, the authors establish the continuity of the solution mapping to a parametric generalized set-valued weak vector equilibrium problem without monotonicity. These results extend and improve some results in the literature. Some examples are given to illustrate the results.