Abstract: This article describes the Antenna Interface Standards Group (AISG) standard in telecommunications and details itshardware implementation. It explains how a fully integrated transceiver such as the MAX9947 can help reduce space and cost, andsolve bus arbitrations in Base-station tower equipment.
為了能夠滿足基站易于選址、優(yōu)質(zhì)快速的建站要求和易維護、低成本、高可靠的運行要求,本文對以方艙來實現(xiàn)一體化結(jié)構(gòu)基站做出一番探討。從系統(tǒng)設計的觀點闡述了移動通信高性能基站天線設計的幾個關(guān)鍵問題,介紹了智能天線技術(shù)在基站中的應用,并且用HFSS軟件仿真了一種新型的對稱陣子天線,該天線駐波比小于2的帶寬可以達到60%,具有良好的寬頻帶特性。
Abstract:
In order to meet the station construction requirement of easy site selection and fast Base station, and meet the operational requirement of easy maintenance, low cost and high reliability, this paper discussed the unified architecture Base station using shelter. Several key problems of high performance mobile communication Base station antenna were illustrated from the view of system design, the application of smart antenna in Base station was also introduced. And a novel dipole antenna was simulated by using HFSS, the VSWR of the antenna is less than 2, and the bandwidth was reach to 60%. So it has good broadband properties.
Sanos Operating System Kernel ----------------------------- Sanos is an OS kernel for use in PC Based server appliances. The kernel was developed as part of an experiment on investigating the feasibility of running java server applications without a traditional operating system only using a simple kernel.
使用jsp+my sql構(gòu)成的電子管理系統(tǒng)。能實現(xiàn)借書,日記,激光唱碟,對在系統(tǒng)中登錄的借用人進行管理的電子圖書館。
A web Base electronic library that can lends books, journals, CDs, videos to borrowers who are registered in the system, as are the books and magazines. J2EE (JSP, Servlet and JDBC) & MySQL for the implementation.
數(shù)字運算,判斷一個數(shù)是否接近素數(shù)
A Niven number is a number such that the sum of its digits divides itself. For example, 111 is a Niven number because the sum of its digits is 3, which divides 111. We can also specify a number in another Base b, and a number in Base b is a Niven number if the sum of its digits divides its value.
Given b (2 <= b <= 10) and a number in Base b, determine whether it is a Niven number or not.
Input
Each line of input contains the Base b, followed by a string of digits representing a positive integer in that Base. There are no leading zeroes. The input is terminated by a line consisting of 0 alone.
Output
For each case, print "yes" on a line if the given number is a Niven number, and "no" otherwise.
Sample Input
10 111
2 110
10 123
6 1000
8 2314
0
Sample Output
yes
yes
no
yes
no
PathPlannerApp Manual With Tutorial.doc is a path planning-tutorial that provides detailed explanation and pseudo-codes.
In order to get the most out of the tutorial, you should start with the "PathPlannerApp.Base" and avoid looking through the "PathPlannerApp.solution" untill you have completed the project.
WebServices_WebSphere_Version_5
Objectives
§ Web Services Overview
• What are Web Services?
• Roles and Functions of Web Services
§ Web Services Runtime
• Base Support
• IBM WebSphere UDDI Registry (Private UDDI)
• Web Services Gateway (WSGW)
§ Problem Determination
§ Web Services Security
§ Technical Previews
§ Summary