# Anomie

A blog of whatever goes.

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# 绪论

## 系统和系统科学

### 系统的定义

1. 至少两个元素——系统的多元性
2. 组成部分相互作用——矛盾的统一

### 系统的数学描述

$$S=(A,R)$$，其中$$A$$是所有系统元素的集合，$$R$$是所有相关关系的集合

# 操作思路

• 在Web of Science或者其他学术搜索引擎上查找所需要的文献，然后将全体检索结果的信息导出成Excel（包括作者、标题、出版年份、期刊、DOI号等等）
• 以DOI号为检索条件，到Sci-Hub下载文献，将这一过程写成爬虫进行批量处理
• 导出DOI号序列，写成循环来逐个爬取
• 以DOI号检索文献，进入下载页面，查找到保存按钮对应的元素，下载到本地
• 将下载的PDF文件按照自己的标准重命名
• 手动补全无法在Sci-Hub上得到的文献

# 分析过程

1. 通过爬虫获取我国沿海海水水质的监测数据；
2. 以散点图直观反映水质类别的分布和随时间变化情况；
3. 将化学需氧量数据转换为正态分布，以海区/省份为分类变量进行单因素方差分析；
4. 将无机氮数据转换为正态分布，用Pearson分析和线性回归分析考察化学需氧量和无机氮数据的相关性；
5. 利用机器学习，从多个污染指标数据预测海区分类。

# flowchart绘制流程图

This is a draft version of course essay from Berkeley Summer Session 2021 (EPS-80).

# Introduction

Huge environmental changes in my hometown have taken place for the past two decades of fast economic growth and industrialization, which is seen as a rough miniature of entering the Anthropocene. Using examples from class materials, my own experience and the book Under a White Sky, several key aspects of anthropogenic actions are analyzed briefly, including land use, agriculture, soil remediation and green house gas management. Finally some personal insights and preparations are mentioned.

# Main Body

## A glimpse of Anthropocene — a localized point of view

While I was going through the class, I kept thinking about what happened to my hometown located in the southeastern part of China. The past two decades had witnessed rapid economic growth, industrialization and urbanization. When I recalled on how the landscapes looked like at the beginning and what it had become, I figured that this process could be seen as a miniature of what we've been through while entering the Anthropocene, which was believed to have been for just a century or two[1]. This miniature might not be accurate enough, because no trans-regional effect was involved in the narrative, and the time period is not long enough to verify the geological traces of anthropogenic impacts. Yet we can still find the relations to what we've discussed in class and what I've read in the book Under the White Sky.

In the early 2000's I used to spend time in the tiny farm of my grandparents, probably the size of half a tennis court. They grew common vegetables like Chinese cabbages and green vegetables, and in spring dug bamboo shoots from a bamboo forest next to the farmland. The agricultural methods were rather old-fashioned and manual — they used a small plough to loosen the soil, sowed seeds by hand, and used animal excrement as fertilizers. I still remember playing with a small hoe while the adults were busy hoeing to get rid of annoying weeds (I tried to do weeding by myself, but it turned out that all I could do was digging holes in bare soils). There was almost no sign of industrialization and machinery, and even the fence was built out of bamboo strips and wires tied together. This tiny farm provided us with lots of cooking ingredients, and was abandoned after my grandparents moved from the old house.

# 系统问题的提出

Virtually every important concept that backs up the key ideas emergent in systems literature is found in ancient literature and in the centuries that follow.

18世纪和19世纪自然科学和物理科学知识的爆炸式增长使得专业学科的创建成为必然：为了科学的进步，科学家需要成为一个狭窄研究领域的专家。专业化的教育体系使得这种狭窄领域的知识传递给下一代专家，从而使碎片的知识结构永久化[1]。事实证明，对于实验分离和分析还原的流行科学方法而言，这种日益专业化的知识和教育是解决问题的优势而不是劣势。然而，基础科学和应用科学的某些领域仅靠这些方法并不能充分发挥作用。

This is the basic principle of "classical" science, which can be circumscribed in different ways: resolution into isolable causal trains or seeking for "atomic" units in the various fields of science, etc.