... frequency band Because the PN code has a frequency bandwidth much higher than the bandwidth of the data, the transmitted signal will have a spectrum that is nearly the same as the wideband PN signal ... Spread Spectrum takes its name from the wide bandwidth it uses The wide bandwidth is part of what makes it immune to interference Compare to the narrow FM band shown in the center of the graph 13 ... network applications The FCC has set aside three bands for commercial spread spectrum use: 900 MHz, 2.4 GHz, and 5.7 GHz Products operating in these bands are operating where very little industrial...
Ngày tải lên: 19/01/2014, 20:20
... đặt dây chuyền tự động để gia nhiệt trước cho thép 3.2 Gia công mép kết cấu thân tàu.Công nghệ gia công mép cấu thân tàu bao gồm việc cắt mép vạt mép (săng phanh) chia thành cắt thẳng mép cắt ... để hạ liệu lấn lượt dùng dưỡng ,dùng thảo đồ hay dùng quang học 3.Gia công kết cấu thân tàu Công nghệ gia công kết cấu thân tàu phân thành gia công nguội gia công nóng phân thành gia công mép gia ... với giúp sức máy tính điện tử 2-Hạ liệu Nghĩa xác hạ liệu vẽ khai triển cấu thân tàu sau phóng dạng,và lấy dấu khai triển cấu thép hay thép hình với trợ giúp dưỡng tấm,dưỡng hay thảo đồ ký hiệu...
Ngày tải lên: 25/01/2014, 23:20
Tài liệu Lesson 8-Workmanship for Hull Building(2) doc
... với việc hoàn tất toàn kết cấu thân tàu,cần phải tiến hành thử kín để kiểm tra độ dò gỉ mối hàn.Ngoài cấu trúcthân tàu phải thử áp lực nước spec kỹ thuật đòi hỏi kết cấu phải đạt yêu cầu thử sức ... tàu,chúng ta thường chia kết cấu thâ ntàu thành số thành phần gọi thổng đoạn phân đoạn ,lắp riêng biệt sau ghép lại thành thân tàu toàn vẹn đà hay triền tàu.Công việc chủ yếu bao gồm: A:Chế tạo phận-lắp ... seating n.bệ 15 platform n.sàn,bệ 16 jig n sàn.bệ 17 pyramid method phương pháp kim tự tháp 18 base n.chuẩn 19 converse method phương pháp úp 20 framing block tổng đoạn khung 21 tightness test...
Ngày tải lên: 25/01/2014, 23:20
matlab for psychologists a tutorial
... exception to this rule is global variables If a variable is declared as global in a function (i.e the line global var is included at the top of the function) AND is declared as global in another function ... the mean >> hold on >> plot(mean(data),'r-^') Or we can use the errorbar function to plot the mean with error bars >> errorbar(mean(data),std(data),'g-') This is all getting a bit messy, so instead ... plot(data,'b*') >> title('Raw data') >> subplot(2,2,1) >> bar(mean(data),'r') this plots the mean of the data using bars rather than lines >> hold on >> errorbar(mean(data),std(data),'k') >> title('Mean data')...
Ngày tải lên: 24/10/2014, 23:20
application of real coded genetic algorithm for ship hull surface fitting with a single non-uniform b-spline surface
... Non-Uniform B-Spline Basis Function The B-spline basis function is generally non-global The non-global behavior is due to the fact that each vertex point is associated with a unique basis function ... occur only the range of nonzero parameter values For the ith normalized NUB basis function of order k (degree k-1), the basis function Ni,k(u) and Mj,l(w) are defined by Cox-de Boor recursive algorithm ... CAD systems From the mathematical point of view, two main characteristics of the B-spline basis: nonglobal behavior shape and the degree of shape to be changed without changing the number of defining...
Ngày tải lên: 13/11/2014, 08:18
Tutorial for Novices to Agilent’s Advanced Design System (ADS)
... clicking right mouse button Category Part Window Select TLine-Microstrip category Use the scroll bar, and find/select MLIN © Dr.B.S.Virdee 4 Copy/Paste and Move a part • Highlight/select the part...
Ngày tải lên: 15/10/2012, 08:33
TỜ KHAI ĐĂNG KÝ THẾ CHẤP TÀU BIỂN APPLICATION FOR REGISTRATION OF SHIP MORTGAGE
Ngày tải lên: 22/08/2013, 10:58
Working with XML - The Java API for Xml Parsing (JAXP) Tutorial
... "search and replace" XML's text-based format could also make it easier to transfer objects between applications written in different languages For all of these reasons, XML-based archiving is likely ... you'll have them all committed to memory, and you'll be at least "conversant" with XML! Basic Standards q q Basic Standards r XML & DTD r Namespaces r XSL Schema Standards r RELAX r Schematron r ... book then automatically changes any links that use it) XML Base: This standard defines an attribute for XML documents that defines a "base" address, that is used when evaluating a relative address...
Ngày tải lên: 16/10/2013, 12:15
OPAMP TUTORIAL FOR VAGAM
... 200.000 lần (giá trị điển hình) Do đưa tín hiệu vào 1mV tín hiệu 1x200.000=200V (kinh quá!!!) Tuy có cấu tạo phức tạp, kí hiệu OPAMP đơn giản sau: Vì chân ngõ lại nối GND bên chíp (ko cần vẽ làm gì)...
Ngày tải lên: 18/10/2013, 14:15
The WSIT Tutorial - For Web Services Interoperability Technologies (Version 1.0 FCS)
... Chapter 11: Using Atomic Transactions 199 About the basicWSTX Example Building, Deploying and Running the basicWSTX Example 199 203 Index 209 ... than the allotted bandwidth can handle One way to deal with this problem is to encode the binary objects so as to optimize both the SOAP application processing time and the bandwidth required ... SOAP is an XML-based pro- tocol that follows the HTTP request-and-response model In SOAP 1.1, the SOAP portion of a transported message handles the following: • Defines an XML-based envelope...
Ngày tải lên: 23/10/2013, 23:15
System Analysis and Design - Complete Introductory Tutorial for Software Engineering
... 56 4.1.2.1.Open-Response Based Questionnaires 56 4.1.2.2.Closed-Response Based Questionnaires 56 4.1.2.3.Open Response-Based Vs Closed Response-Based .57 4.1.3.Record ... systems are made Y2K compliant or Y2K ready Feed Back Feedback is an important element of systems The output of a system needs to be observed and feedback from the output taken so as to improve the ... we need a database to implement our new system In design stage it is decided as to which type of database will be used in system Secondly we'll identify what data should this database store and...
Ngày tải lên: 27/10/2013, 23:15
Tài liệu Matlab tutorial for systems and control theory pdf
... plotting commands The simple 2D plotting commands include plot stem loglog semilogx semilogy bar errorbar hist polar 7.2 Plot in linear coordinates as a continuous function Plot in linear coordinates ... Logarithmic x and y axes Linear y and logarithmic x axes Linear x and logarithmic y axes Bar graph Error bar graph Histogram Polar coordinates Customization of plots There are many commands used ... comes with a large number of built-in functions that operate on matrices on an element-by element basis These include: sin cos tan asin acos atan exp log log10 sqrt abs sign sine cosine tangent...
Ngày tải lên: 12/12/2013, 07:15
Tài liệu An OrCAD Tutorial for ELEC 424 pptx
... the manufacturing limits to far and some of your boards may come back bad Second, routing traces closely together is generally a bad idea because this can result in undesired mutual inductance ... it should be placed on the Global Layer Place the first corner of the board at 0,0 and then draw from there While drawing, you can use the information in the status bar to tell you where in the ... our template is set a few global spacing constraints These spacing values will be used when you have Layout automatically check for design errors Select Options Global Spacing… to bring up the...
Ngày tải lên: 12/12/2013, 21:16
Tài liệu The Java EE Tutorial For Sun Java System Application Server 9.1 pptx
... Applications 867 Example: Using Form-Based Authentication with a JSP Page 868 Example: Basic Authentication with a Servlet 877 Example: Basic Authentication with JAX-WS ... 1010 Resource Injection 1011 Field-Based Injection 1012 Method-Based Injection 1013 Class-Based Injection 1014 The confirmer Example ... Duke's Bank Application 1075 Setting Up the Servers 1075 Building, Packaging, and Deploying Duke’s Bank Using NetBeans IDE 1076 Building, Packaging, and Deploying Duke’s Bank...
Ngày tải lên: 20/01/2014, 04:20
Ship Design for Efficiency and Economy Second edition docx
... circumstances Installing fixed ballast is an embarrassing way of making modifications to a finished ship and, except in special cases, never deliberately planned Seawater ballast is considered acceptable ... side-walls In addition, the lower ballast capacity of Main dimensions and main ratios 31 the double bottom further reduces the stability when ballasted The stability when ballasted of this particular ... at the end of operation no water ballast is needed Since changeable tanks are today prohibited throughout the world, there is less tank space available for water ballast The GM value only gives...
Ngày tải lên: 05/03/2014, 17:20
Báo cáo " Experiment for Bending Analysis of 3-phase Composite Plate in Ship Structure " doc
... VNU Journal of Science, Mathematics - Physics 26 (2010) 141-145 The set of equation (3) is the basic set to determine the plate’s deflection when shear strain is taken into account The coefficients...
Ngày tải lên: 14/03/2014, 13:20
SMALL BUSINESS SEO AN ONLINE MARKETING TUTORIAL FOR ENTREPRENEURS NEW TO INTERNET MARKETING ppt
... friendly II Get Backlinks Backlinks are one of the most important things you can to make your site more search engine friendly, after adding keyword rich content What are backlinks? Backlinks are ... below) A very important note about backlinks: You want one-way backlinks, not reciprocal links What’s the difference? One-way backlinks are sites that link back to yours Reciprocal links are ... defined and understood current and potential consumer bases with the objective of driving profitable customer action Content Marketing’s basic premise is to “provide some valuable information...
Ngày tải lên: 23/03/2014, 04:21
Relational Databases for Biologists Tutorial – ISMB02 pdf
... Relational Databases • Designing Relational Databases Using Relational Databases • Relational Database Fundamentals • Using Relational Database Using Relational databases • Available database products ... Introduction to Relational Databases • Designing Relational Databases Relational Database Fundamentals • Relational Database Fundamentals • Using Relational Databases Relational Database Fundamentals • ... Relational Databases • Designing Relational Databases Introduction to Relational Databases • Relational Database Fundamentals • Using Relational Databases Introduction to Relational Databases Relational...
Ngày tải lên: 23/03/2014, 16:21
Tutorial Final and Construction Stage Analysis for a Cable-Stayed Bridge potx
... function that can automatically generate a 2D cable-stayed bridge model based on basic structural dimensions of the bridge Input basic structural dimensions of the cable-stayed bridge in the Cable-Stayed ... CABLE-STAYED BRIDGES Cannibalization Stage Category In this tutorial, 33 cannibalization stages are generated to simulate the changes of loading and boundary conditions The cannibalization stages applied ... CABLE-STAYED BRIDGES Backward Construction Stage Analysis Construction stage analysis for a cable-stayed bridge can be classified into forward analysis and backward analysis, based on the analysis...
Ngày tải lên: 24/03/2014, 06:20