Table of Contents System Design Interview: An Insider’s Guide FORWARD CHAPTER 1: SCALE FROM ZERO TO MILLIONS OF USERS CHAPTER 2: BACK-OF-THE-ENVELOPE ESTIMATION CHAPTER 3: A FRAMEWORK FOR SYSTEM DESIGN INTERVIEWS CHAPTER 4: DESIGN A RATE LIMITER CHAPTER 5: DESIGN CONSISTENT HASHING CHAPTER 6: DESIGN A KEY-VALUE STORE CHAPTER 7: DESIGN A UNIQUE ID GENERATOR IN DISTRIBUTED SYSTEMS CHAPTER 8: DESIGN A URL SHORTENER CHAPTER 9: DESIGN A WEB CRAWLER .....

Simple Waypoint System 。Used by hundreds of developers, Simple Waypoint System allows you to create paths right within the editor, then tell any game object to follow your path via our movement scripts.

Altium Designer AD 封装库 常用线路板PCB库 带3D模型 ssop芯片封装库 常用封装

可视化页面装修 基于 vue + ant-design + vue-draggable 实现的可视化页面装修功能 操作指引： 左侧组件区域拖拽至中间布局区域 中间区域的组件支持上下拖拽排序，删除组件 点击中间区域的组件，右侧会打开组件支持的配置项 右侧楼层管理支持组件的排序、复制、删除、定位等 目前支持组件列表 安装 $ npm install 启动 命令行执行：npm run dev 浏览器打开链接： 代码目录 ├── README.md ├── package.json ├── src │   ├── html │   ├── interface // 接口 │   │   ├── core.js │   │   ├── index.js │   │   ├── json-data │   │   │   ├── design_get_page_info.json │   │   │ 

Preface Printed Circuit Board Design Techniques for EMC Compliance: A Handbook for Designers, Second Edition, is a significant enhancement to the first edition. The first edition was well received within the engineering community worldwide and was translated into international languages. The intent of the present volume is to expand upon concepts presented in the earlier edition, to justify why a specific design technique works, and to show when it is appropriate for use. Additional techniques based on technological changes within the last few years are also incorporated. These techniques and enhancements are based on questions, comments, and discussions received from engineers around the world. This book presents information never before published within the engineering community, dealing exclusively with printed circuit boards (PCBs). When writing the first edition, it was impossible to anticipate the amount of variations possible, or what the intended audience expected from a book directed toward nondegreed engineers. A thorough understanding of the concepts presented herein will assist during the design and layout process. Note the key word here —"concepts." Printed Circuit Board Design Techniques for EMC Compliance will help minimize the emission or reception of unwanted radio frequency (RF) energy generated by components and circuits, thus achieving acceptable levels of electromagnetic compatibility (EMC) for electrical equipment. The field of EMC consists of two distinct areas: 1. Emissions: Propagation of electromagnetic interference (EMI) from noncompliant devices (culprits) and, in particular, radiated and conducted electromagnetic interference. 2. Susceptibility or immunity: The detrimental effects on susceptible devices (victims) in forms that include EMI, electrostatic discharge (ESD), and electrical overstress (EOS). The primary goal of the engineer is to ensure proper operation and performance of a product when used within an intended electromagnetic environment. These design requirements are in addition to making a product function as desired for use within a specific, end-use environment. Information presented in this guideline is intended for those who design and layout printed circuit boards. EMC and compliance engineers will also find the information presented herein helpful in solving design problems at both the PCB and system level. This book can be used as a reference document for any design project. The focus of this book is strictly on the PCB. Containment techniques (shielding), internal and external cabling, power supply design, and other system-level subassemblies that use PCBs as a subcomponent will not be discussed. Again, as in the first edition, excellent reference material on these aspects of EMC system-level engineering is listed in the References section at the ends of chapters.

相位器粒子编辑器插件 此插件基于生成的JSON数据创建粒子效果 入门 安装 使用脚本标签： < script src =" //cdn.jsdelivr.net/npm/@koreez/phaser-particle-editor-plugin/dist/plugin.min.js " > </ script > 使用npm： $ npm i -g npm $ npm i --save @koreez/phaser-particle-editor-plugin 用法 导入插件 普通JS var ParticleEditorPlugin = require ( "@koreez/phaser-particle-editor-plugin" ) ; ES2015 import ParticleEditorPlugin from "@koreez/phaser-particle-editor-plugin" ; 加载插件 您需要在游戏中加载插件。 就像Phaser中的任何其他插件一样，此操作也可以完成。 因此，要加载该插件，请将其包括在“移相器状态”之一中。 game . plu

Phaser3粒子编辑器 该工具旨在使用交互式创建粒子发射 在查看编辑器。 主要特点： 快速燃烧 无需运行时 易于使用 入门 首先，您要通过导出项目。 您可以通过单击项目名称旁边的菜单按钮来实现。 导出的项目结构： 用法 var config = { type : Phaser . WEBGL , width : 800 , height : 600 , backgroundColor : '#262626' , parent : 'phaser-example' , scene : { preload : preload , create : create , } , } ; var game = new Phaser . Game ( config ) ; function preload ( ) { this . load . atlas ( 'shapes' , 'assets/shapes.png' , 'assets/shapes.json' ) ; this . load . text ( 'particle-e

DirectX 9.0 3D 游戏开发编程基础随书完整源码。 欢迎到我的资源空间下载中文版或英文版的《DirectX 9.0 3D 游戏开发编程基础》

DirectX9.0+3D游戏开发编程基础（PDF+源码） 适合想学习DirectX9技术的人看 随书代码 MSVC2007编译通过。

天线理论分析与设计，英文版，第3版，作者Constantine A. Balanis，有目录。天线理论权威经典。适合无线通信、天线设计、底层开发人员参考。