The inverted-F antenna is shown in Figure 1. While this antenna appears to be a wire antenna, after some analysis of how this antenna radiates, it is more accurately classified as an aperture(孔) antenna. Figure1. Geometry of Inverted-F Antenna The fe…

Assembler : The Basics In Reversing Indeed: the basics!! This is all far from complete but covers about everything you need to know about assembler to start on your reversing journey! Assembler is the start and the end of all programming languages. A…

全文转载自 Scott Hanselman的博文. I bought a 3D printer on Friday, specifically a Printrbot Simple Metal from Amazon for US$599. I did a few days of research, looking at all the consumer models under $1000. Some were enclosed, others not. Some made of wood,…

Cadence关于UVM的简单介绍,包括UVM的各个方面.有中文和英文两种版本. UVM SV Basics 1 – Introduction UVM SV Basics 2 – DUT Example UVM SV Basics 3 – UVM Environment UVM SV Basics 4 – Interface UVC UVM SV Basics 5 – Collector UVM SV Basics 6 – Monitor UVM SV Basics 7 – Sequence I…

C 日记目录 C basics ................ writing Numeration storage   , structor space assigning pointer,  array others ___________________________________- c coding 1. define empty pointer #define NULL  ((void*)0) 应用程序是不能访问0地址的,所以可以用0地址来表示一个空指针. 利用指针之前(例如作为…

http://randomascii.wordpress.com/2011/08/18/xperf-basics-recording-a-trace/   This post is obsolete – deprecated. For information on newer/easier/better ways of recording xperf traces see Xperf Basics: Recording a Trace (the easy way). The Windows Pe…

  FQ不易,转载 http://randomascii.wordpress.com/2011/08/23/xperf-analysis-basics/ I started writing a description of how to examine CPU Sampling data in xperf and realized that I needed a basics article to link back to. Here it is. Learn this before you g…

Radio Basics for RFID The following is excerpted from Chapter 3: Radio Basics for UHF RFID from the Book, The RF in RFID: Passive UHF RFID in Practice by Daniel M. Dobkin. Order a copy of The RF in RFID: Passive UHF RFID in Practice before December 3…

View Controller Basics   视图控制器基础 Apps running on iOS–based devices have a limited amount of screen space for displaying content and therefore must be creative in how they present information to the user. Apps that have lots of information to display…

In this article I'm going to cover the basics and usages of NSInvocation. What is NSInvocation? Apple Developer Reference describes NSInvocation this way: An NSInvocation is an Objective-C message rendered static, that is, it is an action turned into…

Qt 线程基础(QThread.QtConcurrent等) 转载自:http://blog.csdn.net/dbzhang800/article/details/6554104 昨晚看Qt的Manual,突然发现下一个版本的Qt中(Qt4.7.4.Qt4.8等)增加了一个特赞的介绍多线程的文章 : Thread Basics 注意: 该链接以后会失效,但是 到时候你直接看Qt自带Manual就行了 本文不是严格的翻译 dbzhang800 2011.06.18 使用线程 基本上有种使用线程的…

[译]UI设计基础(UI Design Basics)--导航(Navigation)(六)…

A content provider manages access to a central repository of data. A provider is part of an Android application, which often provides its own UI for working with the data. However, content providers are primarily intended to be used by other applicat…

This chapter introduces some of the basics of dependency management in Gradle. 7.1. What is dependency management? Very roughly, dependency management is made up of two pieces. Firstly, Gradle needs to know about the things that your project needs to…

Markdown 学习笔记: Basics 原文:Basics. 了解Markdown格式化句法的要点 本页对如何使用Markdown提供了一个简单的概述.在"句法"页中对Markdown的所有特性提供了完整的,包含细节的文档.但Markdown应该仅通过浏览几个简单的例子就可以开始使用.本页中的这些例子写成了之前/之后的形式,展示出了Markdown的句法和对应的HTML输出. 另一个有用的方法就是试用下Markdown.Dingus是一个可以输入Markdown格式文本并转换成XH…

JavaScript, at its base, is a simple language that we continue to evolve with intelligent, flexible patterns.  We've used those patterns in JavaScript frameworks which fuel our web applications today.  Lost in JavaScript framework usage, which many n…

原文:Swift中文手册 -- The Basics 基础部分 Swift 是 iOS 和 OS X 应用开发的一门新语言.然而,如果你有 C 或者 Objective-C 开发经验的话,你会发现 Swift 的很多内容都是你熟悉的. Swift 的类型是在 C 和 Objective-C 的基础上提出的,Int是整型:Double和Float是浮点型:Bool是布尔型:String是字符串.Swift 还有两个有用的集合类型,Array和Dictionary,详情参见集合类型(待添加链接).…

Today is a good day to start parallelizing your code. I’ve been using the parallel package since its integration with R (v. 2.14.0) and its much easier than it at first seems. In this post I’ll go through the basics for implementing parallel computat…

.NET Memory Management Basics .NET memory management is designed so that the programmer is freed from the chore of consciously having to allocate and dispose of memory resources. It is optimized to work best with the most common patters of usage. How…

Virtualization Basics Virtualization is not a new concept, but its complexity has been growing, and a number of new paradigms are rising. I will try to demystify some of the concepts behind virtualization, briefly explain some of its basics, and fina…

原文地址:Hyperledger fabric-sdk-java Basics Tutorial This quick tutorial is for all Java developers, who started to look into Hyperledger Fabric platform (https://hyperledger.org/) and would like to use fabric-sdk-java for their projects. When learning a…

使用Image 1. 引用 import { Image } from 'react-native'; 2. 使用 format: <Image source={{}} style{{}} /> 例如: <Image source={{uri: 'https://upload.wikimedia.org/wikipedia/commons/d/de/Bananavarieties.jpg'}} style={{width: , height: }}/> 源代码: App.js im…

PyTorch Basics import torch import torchvision import torch.nn as nn import numpy as np import torchvision.transforms as transforms # ================================================================== # # Table of Contents # # =======================…

Logistic Regression with a Neural Network mindset Welcome to the first (required) programming exercise of the deep learning specialization. In this notebook you will build your first image recognition algorithm. You will build a cat classifier that r…

Python Basics with numpy (optional)Welcome to your first (Optional) programming exercise of the deep learning specialization. In this assignment you will: - Learn how to use numpy. - Implement some basic core deep learning functions such as the softm…

帧率 fps的概念 帧率,单位FPS(frame per second), 用于衡量视频每秒的处理帧数,对于编码器而言说明编码器在1s的编码的速度,通常可以使用一帧的编码时间倒数简单计算:对于解码器而言,帧率表示1秒内解码帧数. 电视节目中比较常用的帧率制式有NTSC.PAL.另外,帧率可能会因为视频是否是交织(interlaved,i)或逐行(progressive,p)的,描述上有所不同.对于交织的视频,一帧数据包含两场:顶场和底场. NTSC标准使用60i fps,意思是每秒60场,亦即3…

原文https://developers.google.com/protocol-buffers/docs/pythontutorial Protocol Buffer Basics: Python This tutorial provides a basic Python programmer's introduction to working with protocol buffers. By walking through creating a simple example applica…

Markdown: Basics (快速入门) / (点击查看完整语法说明) Getting the Gist of Markdown's Formatting Syntax [转自:http://wowubuntu.com/markdown/basic.html] 此页提供了 Markdown 的简单概念, 语法说明 页提供了完整详细的文档,说明了每项功能.但是 Markdown 其实很简单就可以上手,此页文档提供了一些范例,并且每个范例都会提供输出的 HTML 结果. 其实直接试试看也是一个…

Coursera课程<Neural Networks and Deep Learning> deeplearning.ai Week2 Neural Networks Basics 2.1 Logistic Regression as a Neutral Network 2.1.1 Binary Classification 二分类 逻辑回归是一个用于二分类(binary classification)的算法.首先我们从一个问题开始说起,这里有一个二分类问题的例子,假如你有一张图片作为输入,比…

NFC Basics 关于收发NDEF格式的消息,以及相关的api. 非NDEFdata以及其它更深入技术请參见Advanced NFC. 在android端使用NDEF有两种情况: - 从标签读取NDEF数据 - 从另个android手机中使用androidBeam来获取信息. android使用标签派发系统来处理读取NDEF数据的情况,通过分析发现的标签,给数据分类.然后启动一个关注这个分类数据的app. 应用程序能够通过注冊Intent过滤器(Intent Filter)来获取关注的标签信…