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(i) a basic conceptdecibel (db): a amplitude unit defined by a logarithm. For voltage values, the db is given in 20log (VA/VB) and for the power value, given in 10log (PA/PB). DBC is a DB value relative to a carrier signal, and dbm is a DB value

Review:In the previous chapter, the protagonist Carl used a variety of attack methods to the good Luck Company's network information system attack, through the MAC address deception to obtain a connection with the company's internal network, through

1. Understand the database and create new:1) Open the database and connect to the server.2) service type without tube.3) server name: Make a point "." Indicates that the server is on the local computer and, if it is hosted on someone else's server,

April 20, by Youdao Dictionary and Deepin team to complete the Youdao dictionary Linux version finally online, first launched Deepin and Ubuntu two system versions and other versions of the binary package, it is estimated that there will be rpm and

Basic concepts of probability theory two basic laws in probability theory of discrete variables: addition and multiplication, the addition rule defines the direct relation between the random variable x and the condition variable Y. The

Write in frontThanks to all the friends who came in to see. Yes, I'm currently going to write a book about unity shader.The purpose of the book is to have the following several: Summarize my experience with unity Shader and give others a

Weather forecast has been a basic function of the major sites, the recent small series also want to make one on the site, a little bit, in the network search for a long time, finally found the open source free weather API and all regional code

Why Unicode is requiredWe know that the computer is actually very stupid, it only know 0101 such a string, of course, we look at such a 01 string when it will be more dizzy, so many times in order to describe the simple are in decimal, hexadecimal,

I personally think that a good software engineer must master certain test skills. Some development engineers may think that testing is a test engineer's business, not a development engineer. This development engineer is missing a leg, leaving the

Excel convert to PDF Converter which is good? As an office worker, it is unavoidable to have access to Excel software, for a computer professional graduate worker, make an Excel file that is quite simple things, generally do not appear any problems.

Two development of SolidWorks using SolidWorks API SDK template on platform vc++2005, vc++2010 or vc+2012Create a new project at the time of generation always get the following error message, now the solution to share!Error Information:Error 1 fatal

recently got an old server. HP DL380 G6 after installing esxi6.0 , found that the local hard disk will often fall off from time to time, and then have to restart the server, found the relevant information is due to the onboard p410i firmware version

Original address: http://www.cnblogs.com/jamesmile/archive/2010/04/17/1714311.html, thank you hereoperator New in C + + and new operator, look like two sisters, but there is a difference.operator NEW(1) Only the required space is allocated, and the

There is no support for qstring by default in Lldb, you need to add it yourself.1. Create the ~/.lldb folder in the user directory and create a ' qstring.py ' file in the folder. The contents of the qstring.py are:ImportLldbdefUtf16string_summary

from:http://docs.oracle.com/html/e24089_42/ha_setup.htm#sthref833If The SLB is configured-Third-party/custom SSL certificates, you must ensure the CA certificates is properly Configured in order for the trust relationship to be maintained between

SNMP collects data on server performance, such as CPU usage, memory usage, CPU load, number of system processes, disk space usage, network traffic, disk I/O, and so on, while using the monitoring treasure to process these data can be visually

For more than a year of iOS development, the deep understanding of iOS and objective-c is still limited, and most of it still stays at the API level, which is a pretty sad thing to do. Want to learn a language or need a deep understanding of it, so

Qtablewidget Control SummaryIntroduction to "1" qtablewidgetQtablewidget is a common control for displaying data tables in QT dialog design.To learn qtablewidget, you should first look at the Qtableview control (the control also has "pedigree"!) As

15, then talk aboutExchange2010Client access to several protocols15.1 OWA (OUTLOOK WEB APP)in theExchangeearlier versions are calledOutlook Web Access, inExchange 2010Has been redesigned. Improvements in appearance, functionality, and increased

Writing Hadoop MapReduce streaming with bash scripttags (space delimited): Hadoop mapreduce BashMapReduce provides a multi-lingual capability to write Mr, which is Hadoop streaming. We can write mapper and reducer functions in the language we like