高职学生学习主动性意识的缺失与重塑

分析高职学生的特点和学习主动性意识缺失的症状,从学生的学习自觉自信、教师的课堂教学反思、学校的学生评价机制等方面,对高职学生学习主动性意识的重塑策略进行探讨,并提出相应的对策。     

我国宏观经济与证券市场关系的实证分析--基于名义 GDP 和上证指数发展速度的视角

宏观经济和证券市场的关系一直受到人们的关注,由于数据的选取和研究方法上的不同,导致宏观经济与证券市场的关系存在不同的结论或解释。从名义 GDP 和上证指数发展速度的视角,运用 HP 滤波以及 SVAR 等方法实证研究了宏观经济和证券市场的关系。研究发现：宏观经济和证券市场存在显著的因果关系;短期证券市场的波动是经济偶然性波动的预期,两者之间的滞后期效应与当期效应相互影响;方差分解表明宏观经济对于证券市场的长期贡献度很大。     

(Short communication) Degradation of corrosion resistance of Zircaloy-4 in LiOH aqueous solution

To investigate the degradation of corrosion resistance of Zircaloy-4 in LiOH aqueous solution, SIMS (secondary ion mass spectrometry) analysis was performed to examine the profiles of Li~ , K~ , and OH~- in oxide layers formed in the same concentration (0.1 mol/L) LiOH and KOH solutions. Even though the oxide layers have an equal thickness, the penetration depth of K~ is shallower than that of Li~ , and the penetration depth of OH~- corroded in KOH solution is also shallower than that corroded in LiOH solution. It shows that the diffusion of OH~- into oxide layer is accompanied by the corresponding cation. The difference of degradation effect of LiOH and KOH solutions on the corrosion resistance of Zircaloy-4 was discussed.     

Experimental Study of Microstructure Evolution during Tempering of Quenched Steel and Its Application

LARGE-SIZED FORGINGS are usually intensivelyquenched to obtain the desired microstructuredistribution,high strength and hardness.Becauseresidual stresses are high in quenched large-sizedforgings,tempering processes follow quenchingprocesses to reduce the residual stress and obtain goodmechanical properties.Several differentmicrostructures are generated in quenched steelforgings,such as martensite,bainite and retainedaustenite.Modeling of microstructure evolution inquenched steel during …     

EFFECTS OF ENTRAINED AIR MANNER ON CAVITATION DAMAGE

Early in 1953 the experiments by Peterka proved that air entrainment has effects on decreasing cavitation damage.This technology has been widely used in the release works of high dams since the inception of air entrainment in the Grand Goulee Dam in 1960.Behavior,mechanism and application of air entrainment for cavitation damage control have been investigated for over half century.However,severe cavitation damage happened due to complex mechanism of air entrainment.The effects of air entrainment are related...     

AVS-M帧间预测模式快速选择算法的研究

AVS-M是我国拥有自主知识产权的数字音视频编码系列标准的移动视频标准.AVS-M采用率失真优化(RDO)技术进行帧间模式的选择,增加编码过程中宏块进行模式选择的计算复杂度.本文提出一种快速的帧间模式选择算法.该算法首先对SKIP模式提前判决,再采用二分搜索法对帧间模式的选择,对于宏块层的模式划分采用MAD(平均绝对差...     

SSO功能实现中的数据整合方案初探

SSO(Single Sign On)是并购整合后期的技术整合中必须要实现的一个功能,而通常不能直接将并购者的用户数据与被并购者的用户数据直接合并,本文着重分析了在实现SSO数据整合中可能存在的问题,并针对各个问题给出了初步的解决方案.     

软件工程双语教学实践与探讨

针对软件工程课程本身的特点,对软件工程双语教学的必要性﹑可行性进行分析。通过软件工程专业课程双语教学的实践,探讨双语教学的经验和体会。并结合一般本科院校的实际,从教学方式、考试、教材、教室等多个方面提出具体的改进措施。     

基于Struts 2拦截实现角色管理与应用系统的解耦

基于Struts 2拦截技术,实现角色的权限管理子系统与应用子系统部分的解耦,可以大大减少需求变更所带来的开发成本和代价,并且可以使权限管理子系统重复利用。该方法已经在实际项目中得到了应用。     

网络教学心得

该文主要讲了网络教学中必须掌握的知识要点。