Hexo

¶The Science of Falling in Love Love is often described as heartwarming,heart-wrenching and even heartbreaking. So, what does the brain have to do with it? Everything! The journey from first spark to last tear is guided by a symphony of neurochemicals and brain systems. As you begin to fall for someone, you may find yourself excessively daydreaming about them, and wanting to spend more and more time together. This first stage of love is what psychologists call infatuation, or passionate love...

¶The Myth of Cupid and Psyche “Beauty is a curse ,” Psyche thought as she looked over the cliff’s edge where she’d been abandoned by her father. She’d been born with the physical perfection so complete that she was worshipped as a new incarnation of Venus, the goddess of love. But real-life human lovers were too intimidated even to approach her. When her father asked for guidance from the Oracle of Apollo, the god of light, reason, and prophecy . He was told to abandon his daughter on a...

¶The History of Marriage There have been many different things written and said about marriage. From the sweetly inspirational to the hilariously cynical . But what many of them have in common is that they sound like they express a universal and timeless truth, when in fact early everything about marriage, from its main purpose to the kinds of relationships it covers to the rights and responsibilities in volved, has varied greatly between different eras, cultures, and social classes. So, let...

¶How One Journalist Risked Her Life to Hold Murderers Accountable In March of 1892, three Black grocery store owners in Memphis, Tennessee, were murdered by a mob of white men. Lynchings like these were happening all over the American South, often without any subsequent legal investigation or consequences for the murderers. But this time, a young journalist and friend of the victims set out to expose the truth about these killings. Her reports would shock the nation and launch her career as ...

¶The Amish In the land of rock and roll , the space shuttle, and computerized living, who could imagine that about 50,000 Americans do not use telephones, electric lights, or cars, not because they are poor, but out of choice ? As hard as this may be to imagine , the Amish, or more properly, the Amish Mennonites, still live a traditional, rural lifestyle direct from 17th century Europe! To understand these unique Americans better, it is necessary to understand their history. Beginning with ...

¶Let’s Visit New York! New York, New York. The city so nice they named it twice. These words were used to describe New York when it was by far the largest, richest, and most developed city in the United States. New York still remains the largest and most famous city in the U.S. today, but some of its “nice” reputation has fallen over the past thirty years with stories of rampant crime making headlines around the world. How true are these stories? Is New York still a “nice” place to visit...

¶高分子的结构简介😸 高分子的结构 链结构 近程结构（化学结构，一级结构） 构造：链中原子的种类和排列、取代基和端基的种类、单体单元的排列顺序、支链的类型和长度 构型：某一原子的取代基在空间的排列 远程结构（二级结构） 分子的大小与形态 链的柔顺性 构象 聚集态结构：高分子材料整体的内部结构 晶态结构（三级结构） 非晶态结构（三级结构） 取向态结构（三级结构） 液晶态结构（三级结构） 织态结构（更高级的结构） ¶近程结构 ¶高分子链的化学组成 高分子链的基本单位是结构单元，组成结构单元的原子决定了高分子的元素成分。按分子主链（连续长度最长的链）的组成分类，链状高分子可分为三类： ¶碳链高分子：主链上的元素都是碳元素 聚烯烃 加聚物：聚乙烯， 聚丙烯， 聚苯乙烯，聚氯乙烯， 聚四氟乙烯，聚丁二烯， 聚异戊二烯 不易水解 易加工（“越柔越易加工”） 易燃烧 易老化 耐热性较差 ¶杂链高分子：主链上除了碳元素还有杂元素，通常是N、O、S 缩聚物 开环聚合物——聚对苯二酸乙二酯，聚酰胺-66，聚氧化乙烯，聚己内酰胺 主链带极性，易水解，醇解或...

¶教材及习题集 高分子物理， 刘凤岐，汤心颐编著，第二版，高等教育出版社 高分子物理学习指导，董炎明，胡晓兰著， 科学出版社 高分子物理习题集，徐世爱主编，华东理工大学出版社 ¶教学内容 第一章 绪论 结构部分 第二章 高分子链结构 第三章 高分子溶液 第四章 高分子聚集态（一） 第五章 高分子聚集态（二） 第六章 分子运动与转变 性能部分 第七章 聚合物的粘弹性 第八章 橡胶弹性 第九章 聚合物的机械强度 ¶高分子物理的研究对象 ¶高分子家族 涂料 粘合剂 弹性体 塑料 热固性塑料（酚醛树脂、脲醛树脂） 热塑性塑料（PE、PP、PVC、PS、PMMA、尼龙） 合成纤维 天然聚合物 生物系统 ¶聚合过程赋予高分子三个特征 由重复单元相互连接构成 链状分子的基本形式 足够长 聚合物（Polymer)：多增加或减少几个重单元不会影响本体性质（玻璃化温度、热容、密度、热膨胀系数、模量、拉伸强度、导热系数、折光指数…） 高分子的特征不在其分子量高，而在其长链状结构 ¶高分子科学的发展历程 ¶（一）蒙昧时期 19世纪中叶以前 无意识地使用高分...

PS：很久之前写的一篇体验文章啦~ 测试一下hexo的博客功能~ ¶为什么选择AMD 因为穷（bushi✘），广大的DIY玩家因为各种各样的原因选择了AMD显卡，让我们相聚于此。AMD显卡相较于NVDIA以其高性价比著称，奈何NVDIA早已建立起CUDA的壁垒，AMD显卡在人工智能领域“有劲使不出”或者算力较NV差。几个月前，Ollama支持了部分AMD Radeon显卡以及AMD Radeon Pro显卡，让广大玩家有了尝鲜的机会，接下来咱们展开说说 ¶什么是Ollama “畅玩”之前，咱先把简单的原理搞清楚。 Ollama gihtub：https://github.com/ollama/ollama Ollama官网：https://ollama.com/（可正常访问） 什么是Ollama？ ——Get up and running with large language models. Ollama是一个调用和运行大模型的工具，可以是官方提供的大模型，也可以是非官方提供的途径，非Ollama官方提供的大模型可以前往Huggingface和魔搭社区（可正常访问）下载。 几个...