Timeline

March 24

• email from github: Academic Reverification Required

April 20

• identification uploaded

April 27

• got rejected: The item you uploaded is undated. Supplementary proof of your current student status.

Hardware:Newifi2 D1
Bootloader:Breed written by hackpascal

Definition of MTD(Memory Technology Device)

A type of device file in Linux for interacting with flash memory. The MTD subsystem was created to provide an abstraction layer between the hardware-specific device drivers and higher-level applications.

Differences

Linux traditionally only knew block devices and character devices. Character devices were things like keyboards or mice, that you could read current data from, but couldn’t be seek-ed and didn’t have a size. Block devices had a fixed size and could be seek-ed. They also happened to be organized in blocks of multiple bytes, usually 512.

USB sticks, MMCs, SDs, CompactFlashes and other popular removable devices should not be confused with MTDs. Although they contain flash memory, this is hidden behind a block device interface using a FTL(Flash Translation Layer).

Online特价，3eur/mo，做下载机不错。急用，简单安装了Aria2+AriaNG+Caddy+FileBrowser，小绿锁没来得及上，history导出的，有点乱，可能会有错或遗漏…另外，现在FileBrowser不在以插件形式存在，反代一下即可…

很久不用Python了，想着简化一下日常繁琐的数据整理，写个脚本。

Script1：

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import pandas as pd

GlobalIndex = pd.DataFrame(pd.read_excel('global.xlsx', header=5, usecols=[1, 4], skipfooter=1))
uData = pd.DataFrame(pd.read_excel('u.xlsx', header=5, usecols=[1, 2, 3, 4], skipfooter=1))
MergeResult = pd.merge(GlobalIndex,uData,how='inner',on=['Research Fields'])
u = MergeResult.sort_values(by="Web of Science Documents", ascending=False)
u['序号'] = range(1,len(u)+1)
u = u[['序号','Research Fields','Web of Science Documents','Cites','Cites/Paper_y','Cites/Paper_x']]
u.rename(columns={'Research Fields':'学科','Cites/Paper_x':'基准线','Cites/Paper_y':'均篇被引数','Web of Science Documents':'发文数','Cites':'被引数'},inplace = True)
u.to_excel('对比结果.xlsx',index=False)

bash命令记录…

MOSFET概要

金属氧化物半导体场效晶体管（简称：金氧半场效晶体管；英语：Metal-Oxide-Semiconductor Field-Effect Transistor，缩写：MOSFET），是一种可以广泛使用在模拟电路与数字电路的场效晶体管。金属氧化物半导体场效应管依照其沟道极性的不同，可分为电子占多数的N沟道型与空穴占多数的P沟道型，通常被称为N型金氧半场效晶体管（pMOSFET）与P型金氧半场效晶体管（pMOSFET）。

MOS管的电路符号有多种形式，最常见的设计是以一条垂直线代表沟道（Channel），两条和沟道平行的接线代表源极（Source）与漏极（Drain），左方和沟道垂直的接线代表栅极（Gate）。如下图所示：

简介

循环冗余校验（英语：Cyclic redundancy check，简写“CRC”）是一种根据网络数据包或计算机文件等数据产生简短固定位数校验码的一种散列函数，主要用来检测或校验数据传输或者保存后可能出现的错误。生成的数字在传输或者存储之前计算出来并且附加到数据后面，然后接收方进行检验确定数据是否发生变化。一般来说，循环冗余校验的值都是32位的整数。由于本函数易于用二进制的计算机硬件使用、容易进行数学分析并且尤其善于检测传输通道干扰引起的错误，因此获得广泛应用。此方法是由W. Wesley Peterson于1961年发表

Timeline

April 5th
I bought this domain name.

May 7th
Without replace option in AdSense,I had to add the new domain name and remove the old one which had been approved.

May 14th
After a week,I didn’t get any info from AdSense.
It’s still under review.

May 22th
Rejected by AdSense said “…due to Valuable Inventory:No Content…”.Then I re-applied.

Jun 2nd
Approved eventually.

Conclusion

1. Original content is preferred，try not to ctrl+c & ctrl+v
2. Be patient after submitting application.
3. Posting in AdSense community or sending feedback will not speed up the review process.