Operating Systems-Three Easy Pieces V1.0, 带书签。 To Everyone Welcome to this book! We hope you’ll enjoy reading it as much as we enjoyed writing it. The book is called Operating Systems: Three Easy Pieces (available at http://www.ostep.org), and the title is obviously an homage to one of the greatest sets of lecture notes ever created, by one Richard Feynman on the topic of Physics [F96]. While this book will undoubtedly fall short of the high standard set by that famous physicist, perhaps it will be good enough for you in your quest to understand what operating systems (and more generally, systems) are all about.

The ARM processor core is a key component of many successful 32-bit embedded systems. You probably own one yourself and may not even realize it! ARM cores are widely used in mobile phones, handheld organizers, and a multitude of other everyday portable consumer devices. ARM’s designers have come a long way from the first ARM1 prototype in 1985. Over one billion ARM processors had been shipped worldwide by the end of 2001. The ARM company bases their success on a simple and powerful original design, which continues to improve today through constant technical innovation. In fact, the ARM core is not a single core, but a whole family of designs sharing similar design principles and a common instruction set. For example, one of ARM’s most successful cores is the ARM7TDMI. It provides up to 120 Dhrystone MIPS1 and is known for its high code density and low power consumption, making it ideal for mobile embedded devices. In this first chapter we discuss how the RISC (reduced instruction set computer) design philosophy was adapted by ARM to create a flexible embedded processor. We then introduce an example embedded device and discuss the typical hardware and software technologies that surround an ARM processor.

PD IEC TS 62196-3-1：2020 Conductive charging of electric vehicles - Part 3-1：Vehicle connector, vehicle inlet and cable assembly for DC charging intended to be used with a thermal management system - 完整英文版（65页）.pdf

是一个可视化的节点式剧情编辑器，使用非常方便，是一个交互式对话和任务系统，可以自行更改UI，适应于2D和3D，这个是2.1.2的版本，解压后便是一个unitypackage，可以直接导入unity。 如果要了解更多，可以于AssetsStore上看看，地址如下： https://assetstore.unity.com/packages/tools/ai/dialogue-system-for-unity-11672

Unity3D对话制作插件，亲测Unity 2018.1.3f1版本可用，内附教程！

推荐已成为几乎所有基于信息和电子商务系统的组成部分。 推荐系统的目标是利用大量信息和产品目录，并根据用户的选择了解用户的偏好，并通过大量产品空间手动推荐他们无法选择的产品。 该领域的研究已经能够识别出各种算法和方法来做出以用户为中心的推荐。 从每个用户的个性化和偏好的角度来看，基于特定任务或产品领域的要求，每种算法都涵盖了一组不同的参数。 本研究论文讨论了各种推荐系统使用的现有方法及其比较，并提出了一种方法，该方法通过使用 Apriori 算法和关联规则来解决构建推荐系统的现有实践的缺点。

歌曲推荐系统 音乐推荐系统 我们从网上找到两个数据集，一个是用户和音乐的点播数据集，另一个是音乐的详细信息数据集。 利用上述数据，我们可以做一个音乐推荐系统。 在召回阶段，我们尝试了基于排行榜的推荐，基于协同过滤的推荐以及基于矩阵分解的推荐。我们选择矩阵分解来获得召回阶段的结果。 在排序阶段，我们用gbdt + lr的方式来对召回阶段的细分集进行排序。选择打分最高的几个作为最终排序结果。 详细介绍： :

操作系统原理实验（课程项目） 中山大学计算机学院 操作系统原理实验（Operating Systems Laboratory, DCS218） 教师：凌应标 2018-2019 学年第二学期（大二下） 实验目录 序号 名称 简介 镜像文件 成绩 1 在裸机（虚拟机）上运行自己的程序 A++ 2 实现监控程序（原始操作系统）执行用户程序这一项基本功能 A++ 3 用C和汇编实现操作系统内核，并增加批处理能力 A+++ 4 用时钟中断、键盘中断等处理异步事件 A+++ 5 实现原型操作系统中一些基本的系统调用 A++ 6 多进程分时系统，采用时间片轮转调度进程运行 A+++ 7 五状态进程模型，支持 fork、wait 和 exit A+++ 特色 GCC + NASM 实模式（16 位兼容的 32 位代码）； 使用 Shell 脚本自动编译、链接、整合； 未经美化的界面 软盘镜像仅在 VMw

MC9S12DP256／DG128 Hardware & Basic System Design.pdf

System.Web.Optimization.dll error CS0234: 命名空间“System.Web”中不存在类型或命名空间名称“Optimization”(是否缺少程序集引用?)“,“data“:null} 文章地址：https://blog.csdn.net/cplvfx/article/details/109291928