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资源描述This paper presents a lowcost indoor location identification and material tracking methodology for construction projects using Ultra High Frequency (UHF) passive Radio Frequency Identification (RFID) technology. Onsite location aware information is an emerging area that focuses on automating delivery of spatial information pertinent to location of materials, workforce, and equipment. This spatial information can be used to derive knowledge about construction project status. A two-step algorithm is presented to automate the process of location estimation and material tracking in near-real-time. In this methodology, a number of passive RFID tags are distributed onsite where work is progressing, and a mobile RFID reader is carried by a worker onsite. Each passive RFID tag is deployed as a reference point with a known location (landmark) within a predefined zone. Reference tags of known locations are used to d

全美经典有限元分析书籍，特别适合有限元研究和开发分析的人士-Finite element analysis of the nation" s classic book is particularly suitable for finite element analysis of the research and development, who

图形透视算法，图形算法演示，图形 透视算法

蚁群算法仿真因特网中的路由选择，给出正常情况、节点阻断和路径拥塞等不同情况下的最优路径选择与更新实现，仿真结果能够提供可视化的过程模拟-Simulation of Ant Colony Algorithm for Routing in the Internet, given normal circumstances, and the path blocked node under different circumstances, such as congestion of the optimal path selection and update the realization of simulation results can provide visualization of the process simulation

该程序是用C语言写的采用了动量方法的BP神经网络，它具有极其强大的扩展性，可用于函数的逼近及分类识别等各方面，语言书写规范，其中大量使用了动态分配一、二维数组的方法，该网络实例中实现的是对某一函数的逼近，输入层为二层，中间层可自己设定多达十几层，逼近精度非常精确。读者可根据自己的需要设定各层的数目以及相应的训练样本进行训练与测试。-The program is written in C language using the momentum method of BP neural network, which has extremely powerful scalability, can be used for function approximation and classification in areas such as language specification, including large-scale use of a dynamically allocated one, two dimensional array of methods, examples of the network realize that the approximation of a function, for the second input layer, middle layer can be set as many as a dozen layers, close to very precise accuracy. Readers may need to be set in accordance with its own number of floors and the corresponding training samples for training and testing.

一个EM算法的C++程序包。EM算法指即具有隐状态变量的分布中参数的最大似然估计。

采用相互垂直的两个振子构成圆极化天线的FDTD程序．可以计算其圆极化波瓣宽度等天线指标 -perpendicular to each other using the two oscillator constitute a circularly polarized antenna FDTD procedures. Can calculate its lobed circular polarization antennas width indicators

通过高斯消去法，进行矩阵求逆运算，在工程中有很强的实用价值。-through Gaussian elimination method for computing matrix inversion, the project has a strong practical value.

this mobile robot program including fuzzy control system, keypad, ultrasonic ping)), etc-this is mobile robot program including fuzzy control system, keypad, ultrasonic ping)), etc

应用背景 反素数是指一个将其逆向之后也是一个素数的非回文数。例如：17是一个素数，而71也是一个素数，所以17和71是反素数。编写程序，显示前100个反素数。每行显示10个，并且准确对其，如下所示：   13     17     31     37    71    73    79     97    107    113 149   157    167   179  199   311  337   347    359    389 ... 关键技术 step1: 关于如何判断一个数是素数，就是质数， step2: 关于这个素数的逆反数， step3: 再一次判断这个数是个素数， step4: 将这个数输出， step5: 输出前100个反素数。