内容简介：
多年来，NASA任务一直在逐步增加飞行和地面系统的自主权，以增加从任务返回的科学数据量，执行新科学并降低任务成本。在1990年代初期，美国宇航局戈达德太空飞行中心的研究人员开始研究用于地面控制系统和航天器的人工智能技术。该研究始于开发和试验专家系统以自动化地面系统软件，并减少控制航天器所需的人员。接下来是对基于代理的技术和自主系统概念的研究，这些技术和技术旨在增强未来的空间任务自我管理和在其运行的恶劣环境中的生存能力。
Over the years, NASA missions have been gradually adding autonomy to flight and ground systems to increase the amount of science data returned from missions, perform new science, and reduce mission costs. In the early 1990s, a group of researchers at NASA Goddard Space Flight Center began researching artificial intelligence techniques for application to ground control systems and spacecraft. The research started by developing and experimenting with expert systems to automate ground system software and reduce the number of people needed to control a spacecraft. This was followed by research into agent-based technologies and autonomic systems concepts directed towards enhancing future space-mission self-management and survivability in the harsh environments in which they operate. (2020-02-19, PDF, 3294KB, 下载0次)
为解决农产品追溯系统中出现的数据易篡改问题，利用区块链的相关技术，提出了基于联盟区块链的农产品追溯系统架构模型，比较了该系统架构在网络结构、数据存储和数据管理方面的优势，解决了因有中心而易受网络攻击的问题，提高了系统的鲁棒性、数据的可信度和可靠性; 同时结合实际案例论证了该系统架构实际应用的可行性。
Aiming at the problem of data tampering in agricultural product traceability system, this paperproposed an agricultural product traceability system architecture model based on alliance blockchain byusing the relevant technology of blockchain,and compared the system architecture in network structure,data storage and data management.The problem of being vulnerable to network attacks due to the centerwas solved.The robustness of the system,the credibility and reliablity of the data were improved.At thesame time,the feasibility of the practical application of the system architecture was demonstrated incombination with actual cases. (2019-01-29, PDF, 971KB, 下载3次)
1针对国内外混合动力技术研究现状， 对混合动力履带推土机传动系统进行分析
选型， 确定其为双侧电动机独立驱动结构，并对推土机在直线、 转向和正常铲土作业时
的受力进行分析。
2. 提出超级电容式混合动力履带推土机整车控制策略，并且根据实际工况包括空
载直驶、转向、原地中心转向、 铲土工作等工况，并画出详细的控制流程图，并进行分
析。
According to the research status of hybrid power technology at home and abroad, the transmission system of hybrid crawler bulldozer is analyzed.
Selection and determination of the double-side motor drive structure, and bulldozers in a straight line, steering and normal shovel operation
Stress analysis.
2. The whole vehicle control strategy of the super-capacitive hybrid crawler bulldozer is put forward, and it includes air according to the actual working conditions.
Direct driving, steering, in-situ center steering, shoveling and other working conditions, and draw a detailed control flow chart, and divided
Analysis. (2018-08-29, PDF, 1556KB, 下载2次)
基于交叉累计剩余熵的图像配准中插值方法的改进
交叉累计剩余熵（CCRE）比传统互信息在配准强噪声图像时更具优势,但采用部分体积（PV）插值的CCRE在网格点容易产生局部极值,不利于变换参数的优化。针对该问题,研究基于3阶B样条函数的PV插值（BPV）、哈宁窗sinc函数的PV插值（HPV）和Blackman-Harris窗sinc函数的PV插值（BHPV）方法在CCRE中的应用,提出一种新的插值方法。该方法采用灵活的邻域中心,将插值点对联合直方图贡献的权重分散到临近的9个点上,并使用高斯函数作为PV插值的核函数,避免权重突变。实验结果表明,与BPV,HPV和BHPV插值方法相比,
Improved cross cumulative residual entropy (CCRE) image registration interpolation method based on cross cumulative residual entropy of information advantage when strong noise image registration than traditional mutual, but with partial volume (PV) grid point interpolation CCRE prone to local extreme, is not conducive to transformation parameter optimization. To solve this problem, based on 3-order B-spline interpolation function PV (BPV), Hanning window sinc interpolation function PV (HPV) and Blackman-Harris window sinc interpolation function PV (BHPV) Application of CCRE, a new interpolation method. The method uses a flexible center of the neighborhood, the interpolation point joint histogram contribution weights dispersed to nine points nearby and use the Gaussian function as a PV interpolation kernel function, avoid weight changes. Experimental results show that compared with BPV, HPV and BHPV interpolation method, (2017-03-05, PDF, 319KB, 下载3次)
提出了一种多迸制频移键控(M娲K)信号调制分类及解调方法，选取截获接收机输出的MFSK信
号的时频脊线作为分类特征，利用无监督聚类算法求取最佳聚类数M．利用时频脊线的Ham：小波变换
估计码元宽度，并且利用对应最佳聚类数的聚类中心确定抽判门限，通过对时频脊线抽样判决，实现了
MFSK信号的解调．理论分析和对实际信号的处理结果证明了此算法的可行性．
new algorithm is proposed for elassillcation and demodulation of MFSK signals．The ridge of time—
frequency representation of MFSK signals is analyzed．Modulation elassi_fieation is realized by using the unsupervised
clustering algorithm to determine the optimal nulnllt2r of clusters．In order to demodulate MFSK signals，the Haar
wavelet transform is used to estimate the code—width and the centers of optimal clusters are used to determine
thresholds．Theoretical analysis and practical signal processing results justify the robusticity and the efficiency of the
new classification and demodulation Mgorithm． (2015-05-30, PDF, 214KB, 下载11次)
设计了一种基于TMS320C6455与FPGA 的实时图像跟踪系统，该系统首先采用MAX9526 采集图像，利用FPGA 对图像进行均值滤波，滤波后数据采用乒乓方式传输给DSP。Mean Shift 跟踪算法采用图像像素灰度距离中心点的距离作
为目标特征建立核函数，实现对目标的实时跟踪。实验表明，该系统具有良好的实时性与稳定性。
Designed a real-time image-based tracking system TMS320C6455 and FPGA, the system first uses MAX9526 capture images, the use of FPGA mean the image filtering, the filtered data is transmitted ping-pong approach to DSP. Mean Shift tracking algorithm uses the distance from the center of the image pixel gray as the target feature to build a nuclear function, to achieve the goal of real-time tracking. Experiments show that the system has good real-time performance and stability. (2014-08-26, PDF, 1631KB, 下载26次)
德国马克拉轮毂-车轮检测技术.pdf
德国马克拉（MAKRA）检测技术股份有限公司位于巴登符腾堡州的
布鲁赫萨尔城，是一家开发生产汽车车轮试验/检测设备及包括铝
车轮在内的各种复杂零部件夹具工装的专业厂家。产品广泛应用于
欧、美、日、韩及世界著名汽车车轮制造厂，并为德国技术监督协
会（TUV）车轮/轮胎检测证中心提供了多台跳动/弯曲疲劳/冲击试
验机，用于用户产品的检测认证。
Germany Make La wheels- wheel detection technology. Pdf Detection Technology Co., Ltd. is located in Baden-Württemberg city of Bruchsal, Germany Make La (MAKRA), is a development and production of automobile wheel test/inspection equipment and includes alloy wheels including a variety of complex parts for the fixture of the professional manufacturers of tooling. The products are widely used in Europe, the United States, Japan, Korea and the world famous automobile wheel manufacturer, and the German Agency for Technical Supervision Association (TUV) wheel/tire test certificate Centre provides more than one beat/bending fatigue/impact test machine for users Product testing and certification. (2012-06-08, PDF, 429KB, 下载7次)
系统架构设计师考试全程指导---本书由希赛IT教育研发中心组织编写，作为计算机技术与软件专业技术资格（水平）考试参考用书。本书着重对考试大纲规定的内容进行了重点细化和深化，内容涵盖最新的系统架构设计师考试大纲（2009版）的所有知识点，给出了系统架构设计案例分析试题的解答方法和实际案例。对于系统架构设计论文试题，本书给出了论文的写作方法、考试法则、常见的问题及解决办法，以及论文评分标准和论文范文。
Written by Jacques tournament organized the compilation of IT education research and development center, as computer technology and software professional and technical qualifications (level) exam reference book. This book focuses on the examination content outline provided a key refinement and deepening, covering the latest syllabus of the system architect (2009 edition), all knowledge points, gives the system architecture design methods of case studies and practical answers to the questions case. For questions System Architecture design thesis, the book gives the methods of writing papers, examination rules, common problems and solutions, and marking papers and papers Fan. (2011-08-29, PDF, 56995KB, 下载66次)
建立远程集中监控计量中心, 利用现有网络, 通过软硬件结合实现远程计量, 实现磅房现场无人值守,
现场自动或自助过磅。以视频监控、语音对讲等技术手段辅助计量, 将分散的操作岗位集中, 统一管理, 防范作
弊, 提高工作的计划性和时效性, 形成高效的生产调度管理。
When the rem ote centra lized mon itorm eter ing cente r is set up, m ak ing use o f curren t netwo rk and by com bi??
n ing hardw are and so ftware can rea lize remo te m easurem ent, wh ich can imp lem ent automa tic w eigh ing in unm anned
w e ighing house. By m eans of v ideo mon ito ring and aud io comm un ica tion techno logy, scattered operato rs can wo rk to??
ge ther for united managem ent so as to prevent fraud and im provew ork planning and tim e effic iency, w hich form s h igh??ef??
fic iency production schedu ling m anagem en t (2011-04-13, PDF, 109KB, 下载12次)
如果将的评价标准的基础上作为最小区域法的非线性和非凸的问题,这就需要一个重要部份
一般数量的计算量,进行了实验研究。的一种新方法,提高了计算效率,通过收集数据
最远和最近的点从目前的最低径向位置,直到所有分离中心所收集的数据点见面的最优化
标准的改进算法。一定数量的数学模型,提出了最小如果将表明,被确定
通过使用少量的数据点。验证结果表明,该策略提供了有效的方法来确定的
关键的数据点于早期的计算,并给出了一个较有效率的方法来解决问题,特别是如果当
数据点的数量是巨大的。?科学出版社2001年公司。保留所有权利。
The evaluation of circularity based on the minimum zone criterion as a non-linear and non-convex problem, which requires a substantial
amount of computational effort in general, is investigated. A new strategy for improving the computational efficiency by collecting data
points at the farthest and nearest locations from current minimum radial separation center until all collected data points meet the optimum
criterion is proposed. A number of mathematical models developed in this paper indicate that the minimum circularity can be determined
by using a small number of critical data points. The validated results show that the proposed strategy offers an effective way to identify the
critical data points at the early stage of computation and gives an efficient approach to solve the circularity problems, especially when the
number of data point is large. ? 2001 Elsevier Science Inc. All rights reserved.
Modulus method, introduced emphatically by use of numerical method to establish (2011-04-13, PDF, 156KB, 下载10次)
一种基于混沌系统和奇异值分解的
零水印算法
改变了传统通过修改图像内容进行版权保护的做法，描述了一种基于混沌理论和奇异值分解（’()*+,-. /-,+0
1023453’()*，678）的零水印方案；利用了93*(’:(2 混沌系统的初值敏感性映射信息隐藏的位置，增强了算法的安全
性；采用了奇异值的不变特性构造注册中心的水印，保证了在不改变宿主图像任何信息的同时进行有效地版权保
护；将有意义的二值图像作为水印图像，解决了零水印方案水印为无意义二值序列的问题；同时深入分析了水印容
量和算法安全性之间的关系 通过对标准测试图像、卡通、医学、风景、遥感、诗画等图像进行实验测试以及和其他
算法比较表明，该算法简单有效，适用性强，而且对滤波、噪声、<=>? 压缩、剪切等攻击表现出了较强的鲁棒性
A novel zero bit watermarking algorithm based on logistic chaotic system and singuar value decomposition. (2011-02-07, PDF, 269KB, 下载12次)
电源功率因数校正(PFC).PDF
电源设计一直是一个极富挑战性的工作。随着许多传统的难题得以解决，一些有关电源
效率的规范和要求的标准将再次展现新的挑战。
规范标准的第一个阶段其实已经开始，针对降低待机能耗（低负载状态）方面。下一个
阶段的任务将更艰巨，就是提高工作状态下电源的效率。在美国国家环保局“能源之星”
(Energy Star) 计划以及中国中标认证中心 (CECP) 的推动下，世界各地正在公布有关电源
工作效率的新能效标准。
Power Supply Power Factor Correction (PFC). PDF power supply design has always been a challenging task. With many of the traditional problem can be solved, some of the power efficiency of the specifications and requirements of the standard will display the new challenges. Standards in the first phase has already begun, for reducing standby power consumption (low load state) area. The next stage will be more difficult the task is to improve the efficiency of state power. In the United States Environmental Protection Agency " Energy Star" (Energy Star) plans, and China Standard Certification Center (CECP), driven all over the world to announce the power efficiency is the new energy efficiency standards. (2010-06-01, PDF, 2431KB, 下载80次)
Microsoft Windows Server 2008 带有内置网络与虚拟技术，旨在为组织所使用的服务器基础设施提供增强的可靠性和灵活性。新的虚拟化工具、网络技术以及安全增强设置可以更省时、节约成本以及为动态数据处理中心提供平台。强大的新工具，如Internet Information Server7.0 (IIS7)，Windows Server Manager，以及WindowsPowerShell，为管理服务器、流线型网络、配置以及管理任务提供更多控制。增强的安全与可靠性如网络访问保护以及只读域控制器增强操作系统并保护服务器环境，为在此环境上创建业务打造坚实基础。
Microsoft Windows Server 2008 with built-in networking and virtualization technology, aimed at the organization server infrastructure used to provide enhanced reliability and flexibility. New virtualization tools, network technology, and security settings can be enhanced even more time-saving and cost savings as well as provide a platform for dynamic data processing center. Powerful new tools, such as Internet Information Server7.0 (IIS7), Windows Server Manager, as well as the WindowsPowerShell, for the management of servers, streamlined network, configuration and management tasks to provide more control. Enhanced security and reliability, such as Network Access Protection, as well as read-only domain controllers to enhance the operating system and to protect the server environment, in order to create a business in this environment to build a solid foundation. (2009-11-19, PDF, 1884KB, 下载6次)
改进的 rbf网络及其参数优化方法
摘 要 该文提出了一个改进的 rbf网络及其参数优化方法。将典型的三层
rbf网络改为一个两层 rbf 和一个单层
感知器的串联网络。参数优化方法自动确定核函数个数，并根据核函数输
出误差用bp 算法修正核函数中心和宽度。根
据样本分布的不规则性，引入了子类的概念，使每个类由若干子类覆盖，
每个类生成一个单独的网络
Improved rbf network and its parameter optimization method Abstract This paper presents an improved rbf network and its parameter optimization method. The typical three-tier rbf network into a two-tier rbf and a single-layer perceptron networks in series. Parameter optimization method automatically determines the number of kernel function and kernel function according to output error algorithm is used bp kernel function center and width of the amendment. Based on the sample distribution of irregularities, the introduction of the concept of sub-classes, so that each class covered by a number of sub-classes, each class generates a separate network of (2009-10-20, PDF, 110KB, 下载3次)
原创资料：大家在使用VISIO的时候一定有这样的经历吧：想找一个图，却怎么也不记得在那个分类下了。所以我干脆把VISIO 2003下的所有图都放在一个文档中了，这样找起来可就方便多了！这可是原创的哦，第一次公开发表！
下面是一部分目录：
Visio 2003形状大全
1. Web图表
1.1. 网站图形状
1.2. 网站总体设计形状
2. 地图
2.1. 道路形状
2.2. 地铁形状
2.3. 交通形状
2.4. 路标形状
2.5. 三维方向图形状
2.6. 娱乐形状
3. 电气工程
3.1. VHF-UHF-SHF
3.2. 半导体和电子管
……
17. 组织结构图
17.1. 组织结构图形状
Original data: VISIO all the time in the use of this experience must have it: find a map, but do not remember how was in that classification. So I simply VISIO 2003 all plans are in a document, so may find it much more convenient! Oh, this is original, first published! The following is part of the directory: Visio 2003 Shapes Book 1. Web chart 1.1. Site map the shape of 1.2. Web site design shape 2. Map 2.1. Road shape 2.2. MTR 2.3 shape. Traffic shape 2.4. Signpost the shape of 2.5. Three-dimensional shape pattern 2.6 . Entertainment shape 3. Electrical Engineering 3.1. VHF-UHF-SHF 3.2. semiconductors and electron tubes ... ... 17. Organization Chart 17.1. organization chart shapes (2009-07-25, PDF, 3806KB, 下载85次)
Java JDK 6.0学习笔记 1至6章及附录A和附录B
包含java特性、java学习方法、网络资源汇总、jdk下载和安装、path与CLASSPATH的设置、java基本语法、关于对象的认识、数组、字符串(String类))、Ant简介、JUnit简介。
作者：林信良（网络化名良葛格)
学历：台湾大学电机工程学系
经历：SUN教育训练中心讲师
Java JDK 6.0 Study Notes Chapter 1-6 and Appendix A and Appendix B contains the java properties, java learning methods, summary of network resources, jdk download and install, path and CLASSPATH settings, java basic grammar, on the understanding of the object, array, character string (String type)), Ant Introduction, JUnit Introduction. Author: Lin Liang (a pseudonym Liang葛格network) Education: National Taiwan University Department of Electrical Engineering experience: SUN lecturer in education and training center (2009-07-07, PDF, 2385KB, 下载59次)
对于阵地的生存概率计算, 可以使用文献1 中的解析公式作粗略估算, 具体方法为, 把整个阵地看作一
个点目标, 即以阵地的中心作为攻击点。求解出某型弹对阵地的破坏半径, 代入解析式即可。但在实际情况
下, 相对于来袭武器的破坏半径, 把阵地看作点目标必然引起很大的误差。所以, 本文拟用层次分析法对阵地
这个系统进行可能受到攻击的目标分类, 按各分项指标的重要性得出系统的生存概率
Probability of survival for the position calculation, you can use the literature in a rough estimate for analytical formula, the specific method, the whole position as a point target, that is, to position the center point of the attack. Solving for the position of a certain type of bomb damage radius, can be incorporated into the analytical. However, in practice, as opposed to the destruction of the radius of incoming weapons, and position as a point target is bound to lead to significant error. Therefore, this article intended to be position-level analysis of this system may be targeted by the classification of the sub-indicators in accordance with the importance of the survival probability derived system (2009-04-16, PDF, 291KB, 下载16次)
基于图像识别算法的森林防火系统设计
传统的森林火灾监测技术包括人工护林监测、飞机航测、卫星监测等。本文提出一种基于普通CCD 摄像头和瞭望塔上现有
的短波无线通信设备的森林防火监测系统, 根据实时图像与参考图像的差分及小波分解结果, 当有异常情况发生时, 提取出火焰及
烟雾区域, 判断提取区域是否具有烟雾和火焰的动态特征。若判定发生火灾, 即将压缩后的图像通过短波通信设备传回指挥中心。
Image recognition algorithm based on forest fire prevention system designed to monitor forest fires, traditional technologies such as artificial forest monitoring, aircraft and aerial survey, satellite monitoring. This paper presents a general CCD-based camera and observation tower on the existing short-wave wireless communications equipment, forest fire monitoring system, based on real-time image and reference image and the wavelet decomposition of the difference a result, when there are unusual circumstances arise, to extract the flame and smoke region, to determine whether the extraction of regional dynamics of smoke and flame characteristics. Determine if the fire broke out soon after the image compression short-wave communications equipment through the center return. (2009-04-10, PDF, 202KB, 下载110次)
本分布式小区智能网络模型采用符合现场总线(Fieldbus)要求
的CAN技术，以带CAN总线端口的主控机和单元控制器CAN端接口构成的
CAN网络层，下层为由带RS485端口的住户采集器和单元控制器RS485端
接口构成了RS485网络层，向上则利用PC机连接CAN网络层，作为智能
化小区管理中心，从而基本实现智能小区管理、控制、报警、信息采
集和自我检测的功能。
本文从智能小区、现场总线、CAN技术到“CAN+RS485”双底层网
络模型的软、硬件研究，较为详细的介绍了其设计、调试运行和期间
各种问题的解决。
The Distributed Intelligent Network model district in line with Fieldbus (Fieldbus) requirements CAN technologies to bring CAN bus port主控机and cell controller CAN-side interface consisting of CAN network layer, the lower the grounds with RS485 port Household acquisition and cell controller interface RS485 client constitutes a RS485 network layer, up modem to connect to the PC using the CAN network layer, as the Intelligent Community Management Center in order to realize the basic intelligent community management, control, alarm, information collection and self-testing function. This article from the Intelligent Community, Fieldbus, CAN technology to (2007-08-12, PDF, 1897KB, 下载46次)
本书是一本介绍计算机绘图和计算机图形处理方法和技术的参考书
介绍使用v1肋alc肋行计算机绘图和计算机图形处理算法的程序设计。
计算机图形绘制技术为主线，以图形应用程序设计实例为中心。书中大量的程
序实例使读者能很快掌握vt闭alc界．邢T在图形程序设计的基本知识和编程技
巧。本书内容新颖，简明易懂，全部程序实例均在Y1卵alcd．顺环境下上机
通过。程序实例具有很强的工程使用价值。
本书可作为大专院校计算机绘图课程的教科书，适合于技术人员在工程没
计时参考。
the book is an introduction of computer graphics and computer graphics processing methods and techniques of reference books on the use of ribbed v1 ALC rib trip computer graphics and computer graphics processing algorithm design process. Computer graphics rendering the main line, a graphic design application examples for the center. Large book examples of procedures so that readers can quickly mastered vt closed ALC sector. Xing T in graphic design procedures and the basic knowledge of programming techniques. The book is innovative, and easy to understand, all proceedings in the case were Y1 alcd eggs. Shun environment on the pass. Examples of procedures is very useful project. The book can be used as computer graphics tertiary courses and textbooks suited to the technical staff works no t (2006-07-04, PDF, 6708KB, 下载90次)