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When new concrete with higher strength grade is cast, the higher the roughness of old concrete fracture surface is, the higher the interfacial bond strength of old-new concrete is.

结果发现：用分数维来表征老混凝土表面的粗糙度，其预测结果精度较高；在粗糙度较高的老混凝土表面上浇注较高强度的新混凝土，获得的新－老混凝土界面粘结强度较高。

The research raises a question about development of China's higher education in recent decades."Is China still developing its higher education based on sunset industrialization when larger campus and high risings are built everywhere?" Obviously, this is one of the critical questions deserves attentions from decision makers of higher education in China.

当中国的教育在最近的许多年中大兴土木而且仍有扩张之势时，木文向中国教育的决策者提出了一个重要的问题，那就是：&我们是不是还在沿着夕阳工业结构的方向办教育&？

Along with China's economic development and popularization of higher education to speed up the pace , Students will gradually become China's future social forces and in the middle of the main consumption , Students as a result of vector -- Colleges and businesses have also been the focus of concern of So ,In order to facilitate enter—prises in the higher education institutions to undertake commercial advertising ,Also reflected more commercial value of the higher education institutions .

随着我国经济的发展和高等教育大众化步伐的加快，大学生则逐渐成为中国未来社会的中间力量和消费的主体，因而作为大学生的载体——高校自然也受到了商家的重点关注对象了。所以，为了便于企业在高等院校进行商业宣传，同时也更为了体现高等院校的商业价值。

Along with China's economic development and popularization of higher education to speed up the pace , Students will gradually become China's future social forces and in the middle of the main consumption , Students as a result of vector -- Colleges and businesses have also been the focus of concern of So ,In order to facilitate enter—prises in the higher education institutions to undertake commercial advertising ,Also reflected more commercial value of the higher education institutions .

以下为资料的部分内容，如需要全部资料请点击获取全文字数：14160，页数：23 论文编号：YX006随着我国经济的发展和高等教育大众化步伐的加快，大学生则逐渐成为中国未来社会的中间力量和消费的主体，因而作为大学生的载体——高校自然也受到了商家的重点关注对象了。

With the tendency for the mechanisms becoming higher speed lighter weight higher precision , high efficiency and more intelligent, there are higher requirements for the research of the mechanical dynamics.

现代机械不断向高速、轻质、高精度、高效率、智能化方向发展，这给机械系统研究提出了更高的要求，由此引出了机械动力学方面的新课题。

It may be thought that if the law forces the payment of a higher wage in a given industry, that industry can then charge higher prices for its product, so that the burden of paying the higher wage is merely shifted to consumers.

可能有人认为，如果法律强制规定某行业支付更高的工资，那个行业可采用提高产品价格的方式，将工资负担转嫁给消费者。

The analysis shows that with given grid size higher accurate difference scheme can give higher resolutions with wider range of scales, or with given accuracy large grid size can be used for the higher accurate difference scheme. The second part is the numerical simulation of two-dimensional axisymmetric jet. The simulation results show the structure in the near field and the initial transition. In the near field, Kelvin-Helmholtz instability leads to the formation of vortex ring, and nonlinear growth leads to the merging of vortex ring. This is the main instability form. Under the assumption of axisymmetry and two-dimensional computing conditions, the results are applicable only in the near field.

第二部分采用高精度的差分格式对二维轴对称射流进行了数值模拟，模拟结果显示了射流流场结构和涡结构的发展过程，在射流流场近区，K-H失稳导致涡环的产生以及非线性效应的增长导致涡环的对并是射流失稳的主要形式；分析指出在轴对称假设下的射流数值模拟只适用于射流近区的分析。

Adjust the pressure of the impact system steplessly, the strike energy of the hammer will also shift steplessly. When the pressure is higher, the strike energy is higher. When the pressure is lower, the strike energy is lower. Adjust the oil flow of supply pump steplessly, the strike frequency will also shift steplessly. When the flow is more, the strike frequency is higher. When the flow is less, the strike frequency is lower.

从而可通过无级调节控制冲击系统的压力，无级调节控制冲击器的冲击能，压力高时冲击能大，压力低时冲击能小；通过无级调节控制油泵供给冲击系统的流量，无级调节控制冲击器的冲击频率，流量大时冲击频率高，流量小时冲击频率低。

Data collected during the first Arctic cruise of China in the summer of 1999 are used to identify the water masses of Chukchi Sea around the Herald Shoal. Two water masses exist in this region. One is the Anadyr Water that entered in winter or spring with lower temperature, higher salinity and higher silicate. The other is the Bering Shelf Water with higher temperature, lower salinity and lower silicate.

结果表明，海区内存在2个相继进入的水团，一个是海冰覆盖期进入的阿纳德尔水，具有低温、高盐、高硅酸盐的特点；另一个是海冰融化后进入的白令海陆架水，具有高温、低盐、低硅酸盐的特点。

The results were as follows:(1) The structures of the SLCS consisted of two independent factors, viz. Self-Competence and Self-Liking, and ratio of variance of self-competence was higher than self-liking.(2) The SLCS had adequate item validity, homogeneity reliability, construct validity and discriminative validity.(3) Self-competence of male undergraduates from arts and humanities showed higher than female ones, but self-competence of female undergraduates from engineering and technology showed higher than male ones.

结果发现：(1)删除原量表4个项目后由16个项目构成的&自我喜爱感／自我能力感量表&由自我能力感和自我喜爱感两个维度构成，且相对于自我喜爱感、自我能力感对中国大学生特质自尊结构具有更强的解释力；(2)中国大学生群体应用该量表具有较理想的项目区分度、内部一致性信度、构想效度和区分效度；(3)男女大学生的自尊体验在总体上无显著差异，但文科类男生的自我能力感显著高于女生，而工科类女生的自我能力感显著高于男生。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。