查询词典 based on

This article discusses how to drive mission-based approach,"University-based computer culture" teaching to enhance student awareness of active learning, as well as flexibility in the use of knowledge.

本文探讨了如何采用基于任务驱动的方法进行《大学计算机文化基础》的教学，提高学生主动学习意识以及灵活运用知识的能力。

This paper proposes a heuristic algorithm for attribution reduction based on conditional entropy by the comprehension and analysis of data mining algorithm based on rough set theory.

本文在理解和分析基于粗糙集理论的数据挖掘算法基础上针对属性约简提出了一个基于条件熵的启发式算法。

Based on a lot of experiment results, a conclusion is drawn: comparing with other factors, the performance of branch handling strategy is the key limits of processor to exploit the instruction level parallelism existed in nonscientific code, cache miss have severe effect on superscalar processor's performance when it runs scientific code. Second, in order to reduce the branch penalty and improve the performance of superscalar processor, a new branch handling strategy—a classification based hierarchical branch handling strategy, CHBHS is proposed. It first expands the traditional processor architecture to support multiple condition code, conditional execution and Mbranch instruction, as a result, compiler can reduce the number of static conditional branch when the code is generated. Then, CHBHS tries to use the best suitable mechanism to deal with different branch base on their different behavior. CHBHS can predict the target address of unconditional branch, subroutine call and conditional branch by buffering their target address in branch target buffer, a newly proposed high efficient return address stack is used to reduce the penalty of subroutine return instruction, a new Counter Register Stack is also proposed to reduce the penalty of loop-closing branch to zero, and dynamic branch predictor is incorporate with branch target buffer to predict the outcome of conditional branch.

基于上述结论，为了尽量消除转移指令对处理器开发指令级并行性能力的影响，进一步提高处理器性能，在详尽分析目前已存在的转移处理策略的特点与局限性的基础上，首次提出了一种新的转移处理策略即基于分类的层次转移处理策略CHBHS(Classification Based Hierarchical Branch Handling Strategy)，它首先通过扩展传统的体系结构，支持多条件码、条件式执行及多分支转移技术，以使编译程序在进行代码生成时可尽量少生成条件转移指令，从而减少静态条件转移指令的数目；其次，基于不同的转移指令的行为不同这一事实，提出了对不同的转移指令采用不同的机制进行处理的思想，即对无条件转移指令和函数调用指令以及条件转移指令的目标地址，采用转移目标缓冲器来预测，对于函数返回指令，采用所提出一种的高效返回地址栈来预测其目标地址，对于大多数循环控制转移指令，采用所提出的Counter Register Stack来将其所可能带来的损失减少为0，对于其他的条件转移指令采用动态预测机制来预测其方向。

In this article, the effect of matrix on the intensity of RRS is analyzed theoretically based on the matrix negative absorption effect; the effect of pH is analyzed based on the conditional stability constant which is assayed by spectrophotometry; and MG and CV are analyzed qualitatively and quantitatively through detecting the intensity of RRS by the fluorescence spectrophotometer synchronously scanning.

本文采用负吸收效应，从理论上对体系基体的作用进行分析；采用紫外-可见分光光度计测定吸收光强度，求出缔合物的条件稳定常数，对体系酸效应进行分析；采用荧光分光光度计测定共振瑞利散射强度，对孔雀石绿和结晶紫进行定性、定量分析。

A data dessimination mechanism based on confidence coefficient Energy of nodes in a WSN is spent mostly on delivering the packets. In order to decrease the number of packets, while not increase the time delay, a model of data dissemination based on confidence coefficient is presented.

4提出了一种基于置信因子的数据分发机制无线传感器网络中节点的能量大部分用来传输数据，为减少数据的传输量，同时不增加数据包的延迟，提出了基于置信因子的数据分发概念，并设计了一种基于置信因子的发送退避策略和传输过滤器。

Confidence coefficient is generated by the nodes based on the data sensed, and represents the authenticity and importance of the data. A backoff algorithm and a transmission filter based on the confidence coefficient have been designed.

本文从理论上分析了路由空洞在规则部署和随机部署情况下的存在概率，导出了随机部署情况下随机建立的路径遭遇到路由空洞的概率，并提出了一种带有退避改进方法的贪婪转发策略。

Confidence coefficient was generated by the node based on the data sensed, and represented the authenticity and importance of the data. A backoff algorithm and a transmission filter based on the confidence coefficient were designed also.

由于置信因子由传感器节点根据所感知的数据产生，反映了数据的真实性和重要性，由于设计了一种基于置信因子的发送退避策略和传输过滤器，解决了保证重要数据的优先信道访问权和减少冗余数据传输量的问题。

Based on the state of the art of spray cooling, the following topics have been studied:As to a cone-axisymmetric spray cooling systems, the spray area was divided, and the slip-flow boundary condition was introduced. Based on an assumption of the coniform spray, an equivalent continuum model of the average spray density was established.

当前的研究工作大多集中在实验研究方面，然而由于不同研究人员实验条件的不同使得各种研究结论有所差异甚至相互矛盾，有关喷雾冷却的理论研究相对更加缺乏，因此针对电子器件的喷雾冷却技术的理论和实验研究都尚有广阔的发展空间。

In this method, first, the gray-scale image of the molten pool is obtained according to the fractal-based discrete Brown random field theory. Next, the connected domain is detected based on the binary morphology theory and is then used to remove the noise and obtain the target image. Moreover, the successive edges of the image are obtained by means of the Open-Close operation on the basis of the mathematical morphology theory.

该方法利用分形理论中的离散分数布朗随机场理论得到按分形维分布的熔池灰度图像，然后利用二值形态学中的连通域检测去除噪声并得到目标图像，进而利用形态学中的开运算和闭运算得到图像的强连通边界。

The structure feature of the sensor was described in comparison with the classical Stewart platform-based six-component force sensor.By using the finite element method,the elastic dynamics theoretical model of the sensor was established based on the conditions of displacement consistency and force balance.According to this model,the numerical analysis was carried out,and the variety relationship curves between the natural frequencies and the structural parameters are plotted.

描述了该传感器相对于经典Stewart平台六维力传感器所具有的结构特点；利用有限元法，采用位移协调和力平衡条件建立了传感器弹性动力学理论模型，依此模型进行数值分析，绘制了固有频率与各结构参数间变化关系曲线；并利用ANSYS软件建立了传感器有限元模型，进行了振动模态分析，得到其固有频率和振型。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。