算法

Marching cubes algorithm is a classical algorithm to extract iso-surface from regular volume data, and marching tetrahedra algorithm is improved based on MC algorithm.

Marching Cubes算法是基于规则体数据抽取等值面的经典算法，而Marching Tetrahedra算法是MC算法的改进和变型。

So, abˉ sorbing the merits of ant colony optimization algorithm and g enetic algorithm, a new ACOˉGA hybrid opˉ timization strategy is developed to optimize PID parameters.

文中结合蚁群算法和遗传算法各自的优点，提出了一种新型的蚁群算法遗传算法混合优化策略的 PID参数优化方法。

In this paper, we have conducted some experiments on the ISCAS89 benchmarks that are in form of EDIF. We compare FEAS algorithm, FEAS plus algorithm and algorithm based on classify paths on running time. Those algorithms are implemented in C language. At last we conclude that our algorithms can achieve retiming transforming quickly.

本文实验以ISCAS89标准测试电路的EDIF网表为输入数据源，通过编写C程序对FEAS算法、改进的FEAS算法和基于路径分类的重定时算法进行对比，结果表明我们的算法能够快速完成同步时序电路的重定时变换。

The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.

讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法，给出了导频图案，通过仿真实验表明，该算法与理想的信道状态信息曲线非常接近，信噪比差距约在2dB左右，并且在快衰落条件下具有较好的稳定性，其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点，论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统，模拟了整个系统的信号流程，进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能，并根据各种不同的条件：例如高斯噪声、多径衰落、有无保护间隔等，对系统的误码特性进行了评估，为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导，提出了以256点IFFT／FFT为核心和以512点IFFT／FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案，它们在参数选取和性能指标上有所差异，均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置，针对本设计系统的应用环境和系统硬件的性能速率，提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡，结合模拟前端搭建数字中频平台，设计了基带处理的DSP软件模块并进行系统调试，基本实现了一套完整的OFDM调制解调方案。

The positions and functions of the inventory control in the environment of supply chain are discussed first. The analysis on main conflict problems needed to be determined is presented. Based on the algebraic Petri nets the modeling research on vender managed inventory is proceeded on. Considering the shortages of the original algorithms, the improvements are putout to speed up the search process and improve the precision of the search results. The optimizations of lots sizing problem with the objective function of inventory costs are processed by the improved optimal algorithms. By the analysis on the results of the optimization, the conditions of overtime work, out of stock, and security stock are achieved.

文章首先讨论了供应链环境下库存控制在物流管理中的地位和作用，分析了库存控制需要解决的主要矛盾；然后应用代数Petri网对供应商管理库存(Vender Managed Inventory，VMI)的模式进行了建模研究；针对原始的粒子群优化算法和遗传算法存在的不足，分别提出了改进型算法，提高搜索速度和搜索精度；运用改进的优化算法对以库存成本为目标函数的批量计划问题进行了优化，通过优化结果的分析，得出了批量生产计划安排中加班、缺货和安全库存的存在条件。

This paper evaluates the register requirements of software-pipelined loops and presents three new methods for software pipelining loops that require more static general registers than those available in Itanium processor. They reduce register pressure by either reducing instructions in the loop body or allocating stacked non-rotating registers or rotating register in register stack to serve as static registers.

在Itanium处理机上评估了NAS和SPEC2000基准程序中的软件流水循环的寄存器需求，发现静态寄存器不足是造成软件流水失败的主要原因，提出了3种增加软件流水个数、提高软件流水有效性的算法：限制循环展开因子的算法(register sensitive unrolling，简称RSU)、堆栈寄存器分配算法(stacked registerallocation，简称SRA)以及变量类型转换的算法(variabletype conversion，简称VTC)。

Therefore, this algorithm is applied to inverse analysis of mechanical parameters in Pump and Brake Program .It is shown that this algorithm can be used for back analysis of mechanical parameters in engineering.

基于该算法进行了泵闸工程力学参数的反演分析，结果表明免疫遗传算法结合了遗传算法和免疫算法的优点，可以在工程中广泛应用。

By the analyses on the existing detector generating algorithms, we achieved the improvement of the linear time detector generating algorithm, which was widely used at present. The efficiency of the linear algorithm was improved by eliminating the reluctant detectors, and at the same time the improved algorithm was ensured to cover the nonself space as much as possible.

在分析已有的检测器生成算法的基础上，改进了目前使用最多的线性检测器生成算法，通过消除冗余的检测器提高了线性检测器生成算法的效率，同时还保证了改进后的算法能够尽可能多地覆盖&非我&空间。

Introduces a switching step-response algorithm parameters of the self-tuning controller, through the actual temperature control systems, Relay oscillation parameters and self-tuning algorithm and the parameter auto-tuning analysis module, The algorithm proves the safety and setting time than the other two algorithms.

详细说明：介绍了一种基于开关阶跃响应算法的参数自整定控制器，通过在实际温度控制系统的应用，与继电振荡参数自整定算法以及的参数自整定模块进行分析比较，证明该算法在安全性及整定时间上明显优于其他两种算法。

The embedded coding is introduced in order to control the data rate accurately, then the principle of EZWis analyzed. The priciples of the improved algorithms such as SPIHT(Set Partitioning in Hierarchical Trees), SPECK(Set Partitioned Embedded Block Coder)are discussed then.

为了实现视频图像传输码率的精确控制，介绍了嵌入式编码的概念，分析了嵌入式零树小波编码算法，讨论了两个基于EZW算法的改进方案，即多级树集合分裂算法和集合分裂嵌入块编码，对这些算法的原理和编码结果进行了比较和讨论。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。