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ORACLE0088
- ORACLE性能调整，内容包括： 跟踪与分析 索引、蔟与全表扫描 使用优化器调整性能 -Oracle Performance Tuning, including : tracking and analysis of the index, Cocooning table with the use of scanning devices adjusted performance optimization, etc.
R_tree
- 在论述R树索引技术的相关概念、数据结构、算法描述及性能分析的基础上,提出了一种改进的R*树空间索引结构-R-tree Index in the paper related to the concept of technology, data structure, algorithm descr iption and performance analysis, based on an improved space for the R* Tree Index Structure
performanceIndexLibrary
- performance index library: all types of errors
Analyze_Oracle_Table
- 有時候Oracle效能變慢， 做一下分析 讓他認得index.key....，之後查詢、執行操作會提高效率-Oracle performance slow sometimes, so you analyze index.key ...., let him know after the inquiry, the implementation of operations to improve efficiency
vc
- 进程调度算法性能测试主要性能指标为：周转时间,带权周转时间等。给出对以下算法的评价： ①先来先服务调度算法 ②短作业(进程)优先调度算法 ③抢占式的高优先权优先调度算法 ④时间片轮转调度算法 注意：测试的对象是作业(进程)个体或同一类型的作业(进程)。 如短作业(进程)优先调度算法应考虑对不同的进程的周转时间有何影响？ -The progress adjust one degree calculate way performance test The m
B5B8E35Bd01
- Web access path prediction using knowledge discovered from web logs has become an active research area. Web logs provide updated information about the user’s access record to a web site, which contains useful patterns waiting to be discovered and use
PSO_base_RBF
- PSO的RBFNN优化程序 算法步骤 1.样本数据归一化处理，即将输入输出归一化到[-1,1]区间； 2.确定RBF网络的中心和宽度； 3.以拟合误差的均方根作为性能指标，使用PSO算法优化RBF网络输出层到隐层的连接权值矩阵-PSO-RBFNN algorithm optimization procedures Step 1. Sample data normalization treatment, about input and output normalized to [-
navgation
- 建立卫星导航系统效能评估指标体系，在原有模糊综合评判法的基础上，引入定量指标的实际测量值。-The establishment of satellite navigation system performance evaluation index system, in the original fuzzy comprehensive evaluation method, based on the introduction of quantitative indicators of the act
181336261208
- 可变增益放大器是模拟单元电路之一,起着变化增益、调整信号动态范围、稳定信号功率的作用。文章综述了CMOS集成可变增益放大器的研究情况 给出了可变增益放大器的定义、应用、分类和主要指标,描述了多种开环和闭环放大器的结构,分析了相应的增益控制方法及其优缺点 说明了在CMOS工艺下实现放大器增益按指数变化的几种途径。最后,介绍了用于无线数字通信,具有宽带、高线性、低电源电压等高性能可变增益放大器的设计实例。-Variable gain amplifier circuit of the analog u
2
- 失真补偿量化索引调制水印的性能分析-Quantization index modulation watermarking distortion compensation performance analysis ~~~~~~~~~~
Signal
- 分析了在超宽带通信系统中的扩频干扰，并用两种通用的调制技术实现了对提出的抗干扰方法的仿真-he ultra wideband (UWB) interference to direct sequence spread spectrum (DSSS) receiver is analyzed. Two popular UWB modulation schemes, the time hopping pulse position modulat
index
- 创建索引可以大大提高系统的性能,但是也有缺点，本文详解。-Creating an index can greatly improve the performance of the system, but there are drawbacks, Xiang Jie.
2
- 效能评估是武器系统考核的最终目的，这是近年来过年关于导弹效能评估的代表性论文，-To adapt to the changes of battlefield environment and the uncertainty of weapon system itself, we proposed an improved ADC effectiveness evaluation model. ADC model is expressed in interval form that makes the
A-crop-phenology-detection-method-using-time-seri
- Information of crop phenology is essential for evaluating crop productivity and crop management. Therefore we developed a new method for remotely determining phenological stages of paddy rice. The method consists of three procedures: (i) prescr ipt
Valve-cam-design
- The valve train is one of the most important mechanisms in a internal combustion engine, whether the performances are good or bad, that affecting the power performance, economic performance, emissions performance of the engine, as well as affecting t
gonglupingzhengyi
- 随着改革开放的进一步深入，人们的生活水平不断提高，公路交通工具日益先进，要求公路应该具备高速、舒适、安全、经济等要求，所以高速公路得意迅猛发展。同时随着高等级公路的迅速发展，对于路面平整度要求越来越高，路面平整度的合格率既反映了行车舒适程度，又反映了施工队伍的水平。在公路建设中，很多因素会影响到路面平整度，比如施工人员素质、路基施工质量、桥头涵洞两段及桥梁伸缩缝的处理、路面底基层及基层的施工、路面施工机械的选用及路面材料的质量等。由于在检测公路质量的指标中，一个很重要的指标就是平整度，它反映了道
evaluation-standard-of--image--
- 主要总结了部分图像融合的评价指标，并且给出了各个指标的性能及其判别-the paper mainly summarizes the part of image fusion evaluation index are presented, and the performance of each index and discrimination
user_two
- Ds_CDMA EASI 算法使用两个用户的分离实现PN序列以及用户信息的分离-To solve the problem of the direct sequence code division multiple access (DS-CDMA) system multiuser detection, this paper proposes a variable step-size based on performance index (PI) EASI algorithm for inform
CONTROLLER-PARAMETERS-TUNING-USING-GENETIC-ALGORI
- The paper deals with a controller design for the nonlinear processes using genetic algorithm and neural model. The aim was to improve the control performance using genetic algorithm for optimal PID controller tuning. The plant model has been id
The-state-of-IEEE-802.3bj
- 此为IEEE 802.3bj 研究现状，并给出了不同的传输距离的性能指标。-This is the IEEE 802.3bj research present situation, and gives the different transmission distance performance index.