Keep learning; Keep thinking; Keep practice; Let it happens spontaneously.

Preface

Since the outbreak of the new crown epidemic, my life has been greatly affected. From the beginning of the study abroad life hastily ended, to later eye diseases, and then to the United States visa was subject to a long administrative review and had to postpone graduate school enrollment. After nearly two years of various hardships, I slowly grew up. From the beginning, I suffered from acute anxiety disorder and experienced the British NHS ambulance, until now I am out of school and unemployed. In this uncertain world, I seem to have gradually figured out a way to get along with it.

In order to get rid of my inner anxiety, I tried meditation at first. But due to various reasons, it seems that the effect is not good. Later, I accidentally discovered that watching a documentary on the history of paleontology seemed to have a certain effect on alleviating my psychological anxiety, but it was not significant. However, this opportunity allowed me to gradually understand the source of my anxiety. That is probably the trouble with the uncertainty of the future and the lack of confidence in my strategy to deal with the uncertainty.

After long-term exploration, I found that the following points can significantly improve my mental condition:
-Sleep, wake up naturally
-Pay attention to three meals and eat your favorite food
-Go to nature (parks, woods) for at least half an hour every day
-More than 10 minutes of moderate exercise
-Live to the fullest

In this article, I will focus on the specific content and implementation methods of the last article.

Detailed

Keep learning; keep thinking; keep practicing; let everything happen naturally.

The meaning of this sentence is, don’t let yourself be idle. When you have nothing to do, look for the direction or thing you want to do most, such as English or programming, and then do the most inclined process in your heart, such as exploring and learning, thinking and organizing, or practicing. Let intuition guide the specific things that are best for doing right now. But in the general direction, such as whether the current work should focus on learning English or practicing algorithms, it is necessary to fully research and plan.

Idea About life

It turns out that no one is born with nostalgia for the world. So, you can only do something that makes you really happy and happy!

Abstract in english

This article will discuss the positioning, operating mode, and potential applications of the acg.watch website.

Reason

Since the first attempt to build a website in 18 years, the pursuit of streaming media playback services has always been my goal.

History

From March 2018, I realized the release of the third episode of Sway Camp through Tencent Cloud Win Server 2012 for the first time, so that it can be accessed on the web. By September 2018, based on video.js, I built a video website for the first time, used Huawei Cloud object storage and mysql database for centralized management, and published it on video.yimian.xyz. In November 2018, with the Raspberry Pi 3B and an infrared camera, I realized 24-hour monitoring of the dormitory through push streaming. In February 2019, I purchased the domain name acg.watch and transferred the video site to it. Since then, my site’s video has been crawled many times. Due to the huge traffic cost of Huawei Cloud storage, I feel that I will temporarily stop publicly providing services. In November 2019, in the United Kingdom, I restructured the video site and stopped using Huawei Cloud Storage, a money-burning service, and turned to onedrive storage solutions. In addition, the new video station no longer has a backend, but uses the file-cache mechanism to automatically generate a data set by analyzing onedrive’s video catalog. In August 2020, with the completion of the ushio user system, the video station began to provide users with personalized services, including cross-device playback and recording synchronization. In January 2021, the development direction of acg.watch is determined as a multifunctional online player, and the website will also provide a fan drama search function. At the same time, taking into account the copyright issue, all the videos that I have privately collected before are all turned into private ones, and only authenticated friends can watch them.

Website address

• http://video.yimian.xyz
• https://acg.watch

Positioning

Acg.Watch video station has three development positions:

• Assisted search for fan drama resources
• Multifunctional video player
• IoTcat’s private video station

Development status

The website will continue to be developed, and you are welcome to step on it often_(:з」∠)_

Ushio V2ray Instruction..

Process overview

• User registration
• v2ray software installation

User registration

Before installing the software, please go to https://v2ray.yimian.xyz/ to register with your mobile phone number.

v2ray software installation

This article contains software installation methods for Win10, Android, IOS/Ipad OS, please install according to the corresponding process.

Win10

download

• Use a browser to visit http://eee.dog/8bcc14 and download the name Windows_v2rayN-Core.zipThe compressed file.

Unzip

• Decompress the downloaded compressed file to the root directory of drive C, as shown below

  If you are prompted to require administrative permissions, please select all yes

  

Configuration

• Please open the folder just unzipped in the C drive, find the program named V2ray or V2rayN.exe, and double-click to open it. As shown below.
  

• Find the taskbar in the lower right corner, find the icon in the figure below, double-click to open
  

• Select Subscription at the top of the window, and click Subscription Settings as shown below
  

• Open https://v2ray.yimian.xyz and log in. After the QR code appears, click Copy. As shown below
  

• Go back to the subscription settings window, paste the content you just copied into the Address URL box, check Enable, and click OK. As shown below
  

• Click Parameter Settings at the top of the main window as shown below

• Select V2rayN Settings, tick Autostart at boot, and click OK below. As shown below

• Back to the main window, click Update Subscription as shown below

• At this time, there will be one or more servers in the main window, as shown below

  

• Close the main window, right-click V2ray in the status bar at the bottom right corner, and select Server->Vmess-Los_Angeles(….. As shown below
  

• Right-click V2ray in the status bar at the bottom right corner, and select Http Proxy->…(PAC Mode). As shown below
  

verification

• Open https://google.com in your browser to check if you can access it.

Android

Download and install software

• Open the browser http://eee.dog/6db2e3 to download the V2ray Android installation package
• Click to open the installation package to install

Configuration

• Use your mobile browser to open https://v2ray.yimian.xyz/ and log in
• When the QR code is displayed on the page, click Copy
• Open the installed V2rayNG software, click the three bars in the upper left corner, expand the left column, and click Subscription Settings
• After entering the subscription settings page, click the plus sign in the upper right corner
• Fill in ushio in the remarks, fill in the things you just copied in the address url, and click the tick in the upper right corner.
• Back to the main page, click the three bars in the upper left corner, expand the left column, and click Settings
• After entering the settings page, click Sub App Proxy
• Check the Sub App Proxy mode, and then check the apps that need to access the Internet, such as twitter, youtube, etc.
• Back to the main page, click the three dots in the upper right corner, and click Update Subscription
• Tap Los_Angeles in the main page list to make the left side green
• Click the V icon in the lower right corner of the main page to make it green

verification

• Click Connected at the bottom of the main page, click the test connection statement to check whether the connection is successful

Ios

• Change the Apple account area in the system settings to a place outside of mainland China, such as the United Kingdom, the United States, etc.
• Purchase and install Shadowrocket software in the app store
• Use a browser to open https://v2ray.yimian.xyz and log in
• When the QR code is displayed on the page, click Copy
• Open the Shadowrocket software
• Click the plus sign in the upper right corner
• Type selection Subscribe
• Paste what you just copied in the URL
• Click on the upper right corner to finish
• Click api.yimian.xyz on the homepage, click Los_Angeles
• On the first line of the homepage, check Los_Angeles
• Use a browser to visit https://google.com to try

This article will discuss the next development goals and implementation methods of the Wiot project.

wIoT

Wiot, a distributed IoT operating system based on NodeJS.

Project Description

The original intention of the project

This project aims to help web developers who are not familiar with firmware programming to implement their own IoT applications.

When developing traditional Internet of Things programs, we need to write, burn, and debug each development board again and again, and connect them in a certain way to provide a certain service. This method is very cumbersome, and the development cost and threshold are relatively high. In addition, the ancient C and C++ languages ​​lack mature dependency management tools, so that it is difficult for us to write development boards as easy and convenient as developing python or nodeJS programs.

This project is trying to provide a method to automate the process of burning and debugging the development board, and move the steps of logic writing to the NodeJS interface of the remote computer. In this way, we are able to centrally manage the functions of distributed IoT nodes. In addition, with NodeJS’s mature dependency manager npm, the development of IoT applications is more convenient and efficient.

So far, down to every IoT node, up to various types of databases and user terminals, all can be configured and operated on the same nodeJS interface. Developers will be able to focus on the development of IoT logic and realize more colorful IoT applications.

First round of development

The first round of development was completed in May 2019, please refer to this blog

Realize the pin port mapping of D1 MINI development board to nodeJS, and support a series of functions such as ota.

Second round of development

To be carried out, plan as FYP project

Supported development version

• NodeMCU

Implementation

By providing standardized microcontroller firmware and automated burning tools, wiot abstracts, organizes, and maps the pin port functions of each development board into a callable NodeJS interface.

As shown in the figure above, the wiot architecture mainly consists of three parts: Node node, wiot Cloud Module, and wiot cli command line program. Among them, the Node node is the NodeMCU microcontroller with the wiot firmware burned. They use IEEE 802.11 WiFi for distributed communication, and connect to a router at a node to connect to the wiot cloud module. Users use NodeJS to call Wiot on their own PCs and rely on writing IoT programs. After completion, the user uses wiot cli to check, test and deploy the developed program. The deployed IoT program will run on the wiot cloud module, and can use the nodeJS interface to interact with other cloud services or databases.

Node node

Node node uses NodeMCU development board (expansion board based on ESP8266). After using wiot-cli to burn the wiot firmware, NodeMCU will become a wiot node.

Mode

Wiot nodes have four modes: master mode, slave mode, bridge mode and debug mode. This mode can only be configured when burning firmware. In master mode and bridge mode, nodeMCU will enable STA and AP mode at the same time. In slave mode, only STA mode is enabled. The master needs to have a stable and unlimited power supply, which has a large power and is not suitable for low power consumption scenarios. Bridge and slave can flexibly adjust power, which can be used in low power consumption scenarios.

In debug mode, the node works in STA and AP mode. Users can use mobile phones and other devices to connect to this node and open the root directory webpage. The web page will display various information about the current location of this node in real time, such as the signal strength received from other nodes, which is suitable for deployment scenarios.

Low power

Wiot nodes support Low Power state. But this state can only be opened in slave mode and bridge. This state can be turned on or off through wiot api or wiot-cli. The low power consumption state is realized by the sleep function of esp8266. In this state, it can be powered by dry batteries for several years [1].

Networking

Wiot nodes use distributed networking. Where the router signal is strong, the master node will access the router WiFi network and bridge it. Where the router signal is not strong, each node will find another upstream master or bridge node with the strongest signal and bridge it (except slave).

As shown in the figure above, the two master nodes close to the router are automatically connected to the router wifi. The other downstream nodes are respectively connected to the upstream node with the strongest signal.

Certification

Wiot nodes support the use of RF Fingerprint Recognition[2] to achieve downstream communication authentication. This method uses the RSSI function of esp8266 and scan return parameters. When the downstream device attempts to access the network, the upstream device will collect fingerprint information and report to the server. The server compares the fingerprint with the previous version stored in the database and makes a decision whether to allow access to the network.

Cloud Module

The cloud module acts as the cloud part of Wiot and provides cloud functions. The cloud module can guard the wiot program running in the run-time state. In addition, the cloud module can also provide functions such as testing and deployment. The cloud module uses Docker for virtualization.

Command Line Program

That is wiot-cli. It is a set of operation tools provided by Wiot on the developer terminal. Through wiot-cli, developers can implement functions such as testing, deploying, and restoring wiot programs. In addition, wiot-cli also supports a series of common functions such as debug. See the wiot-cli command below for details.

User operation steps

1. The user downloads, installs and configures the NodeJS environment.
2. The user runs the command npm i -g wiot-cli through the command line to install the wiot command line tool
3. The user runs the command wiot init my-wiot-proj to create and configure a wiot project folder in the current directory, the project name is my-wiot-proj. At this point, the user will be prompted to fill in some information about this project, such as project description, author information, WiFi account password, wiot cloud module address, project main script, etc.
4. The user enters the project directory, connects the nodeMCU to the computer through the data cable, and runs wiot node init my-first-node [--type=<master|slave|bridge|debug>]. This will automatically configure and burn the Wiot firmware to the nodeMCU development board and name it my-first-node. type is an optional parameter, which can be set to master or slave or bridge or debug, and the default is master.
5. Follow this method to burn all the development boards and deploy them in the production environment.
6. Run the command wiot status in the project folder to see if all nodes are online. If not, use the command wiot log with the grep tool to find the log location problem.
7. Start writing your wiot program from the main project script (default is index.js).
8. Use the command wiot check to check the logic of your wiot program.
9. Use the command wiot test to suspend the running program in the cloud module and run the program in the current project folder. At this point, all console output will be displayed in your command line window. Use Ctrl+C to terminate the current test and restore the previous program of the cloud module.
10. Use the command wiot push to deploy the local wiot program to the cloud.

Other operations

Deploy your own wiot cloud module

Install docker and run the command docker run -d --name=wiot-cloud -p 3594:3594 -v /var/wiot/data/:/var/wiot/data/ iotcat/wiot.

wiot-cli command

• wiot help [command] view help
• wiot clone <host:user/project> to clone the project from the cloud module to the local
• wiot pull uses remote code to overwrite local code
• wiot push deploys the current folder wiot program to the cloud module
• wiot ls shows all current nodes
• wiot map [nodeID] shows the connection path of a node
• wiot log [nodeID] [--head=<number>|--tail=<number>] view the log of a node
• wiot stop stop wiot service
• wiot start to start wiot service
• wiot restart restart wiot service
• wiot reload restarts the wiot service without resetting the flash variable
• wiot init <name> creates and initializes the wiot project folder
• wiot node init <node-name> [--type=<master|slave|bridge|debug>] configure and burn nodeMCU development board
• wiot check checks the current folder project logic problem.
• wiot test will suspend the running program in the cloud module and run the program in the current project folder. At this point, all console output will be displayed in your command line window. Use Ctrl+C to terminate the current test and restore the previous program of the cloud module.
• wiot status [nodeID] displays current project or node status information
• wiot debug start terminates the current cloud program and enters debug mode
• wiot debug set <nodeID> <pinID> <0-255>Set the PWM output value of a node pin in debug mode
• In wiot debug reset <nodeID>debug mode, reset the data storage of a node and reconnect
• wiot debug get <nodeID> <pinID> get the PWM value of a node pin in debug mode
• wiot debug sleep <nodeID> <pinID> <HIGH|LOW>debug mode to set a node to lightly sleep until it is awakened by a pin’s high or low level
• wiot debug dsleep <nodeID> <millisecond> set how many milliseconds a node deeply sleeps in debug mode
• In wiot debug reconnect [nodeID]debug mode, reconnect to the network or disconnect and reconnect to a node

Common API

To be designed, please refer to One-round development wiot document

My GRE preparation started from 8.21, and the first test was 8.28 (scores not submitted). It is expected to be completed by the end of September. The goal is 155+170W3.5. The total process lasts one and a half months. This article explains the contradictions and methodologies that were extracted during my GRE preparation process.

Test preparation positioning

My main purpose of preparing for the GRE is to effectively improve my English vocabulary and paper reading level (speed) with the help of the GRE preparation process. At the same time, this test preparation process will also become an effective test of Tomato Proj, providing an experience reference for the realization of an orderly and harmonious life rhythm in the future. In addition, GRE scores are also required to apply to some American schools.

Test preparation contradiction analysis

deficiency of time

Since I invested a lot of time during the summer vacation, preparing application materials, learning and accumulating professional knowledge, and preparing for FYP, I only left about 1 month to prepare for GRE. Therefore, the problem of insufficient time needs to be compensated by methodological refinement.

Mathematical contradiction analysis

Skip mechanism

The key to GRE mathematics is relatively easy for our managers who have passed the science college entrance examination to adjust their expectations to about 170 through a certain amount of exercise review. But this does not mean that GRE math can be taken lightly. When preparing for the GRE math test, in addition to raising expectations, it is more important to reduce variance. Considering that GRE mathematics is relatively tight in design time, only 35 minutes, and there may be some difficult or unintelligible questions, then you must skip it decisively and stop the loss in time. Therefore, in the preparation process of mathematics, it is necessary to form a judging mechanism for judging whether to skip, and the less time-consuming judgment, the better.

Question type analysis mechanism

In the preparation process of mathematics, in addition to reducing variance, we must also effectively raise expectations. Unlike the college entrance examination, the language of GRE math is English, and there are a series of logical traps. Therefore, in order to increase the expectation of GRE mathematics, the following three points need to be “programmed” to refine the corresponding methodology.

• Common English for Mathematics
• Various problem solving methods
• Method of choosing method

Error checking mechanism

Although the time for the GRE math test is limited, it does not rule out the possibility that time will be left. Therefore, you can pay attention to exercise a set of mechanisms that are conducive to using the remaining time error. For example, rationally plan the use of cursive paper.

Reading contradiction analysis

Read it again

Through the training of the past few days, I have discovered a phenomenon, and if I did not understand the article at the beginning, then I basically rely on misunderstanding to do the questions later. Therefore, GRE reading must first understand the article. To achieve this, the s3 version of the sentence can be refined, and the content of the next sentence can be pre-judged through the intermediate relational connectives, so as to recurse.

accelerate

Read the article in a limited time. .

Fill in the blank contradiction analysis

Vocabulary

First brush 3000, and then brush the TOEFL vocabulary. . Then look again. When scanning words, be sure to batch (for example, 500 words as a group), changeable. Pass it several times a day, just flash, and it will be effective in a few days.

Formula processing

Abstract the topic into formula processing. .

To prepare for my master’s application in 2021, I did some research on some of my favorite projects and summarized them here.

Ranking Source：QS2020, USNews2020, ARWU2019,csrank.global.2010-2020
The four rankings represent four perspectives (QS->UK，USNews->US，ARWU->China，csrank->cs Industry)

The following information section is taken from the Internet and may contain errors!!

UK

Imperial College London

QS: 9
USNews: 20
ARWU: 23
csrank: 73

Application mode:

Two choices. You can see your second choice when you are admitted.Applications can only be submitted once a year.

MSc Computing Science

• Fee£33,250
• 1 year

Condition

• A first class degree in any major
• Ielts 6.5 score 6/ TOEFL 92 score 20

Case

• con 85 (校友利)
• gre330 (优留)

MSc Applied Machine Learning

• Fee£32,500
• 1 year

Condition

• EEE first class
• Ielts 6.5 score 6/ TOEFL 92 score 20

UCL

QS: 8
USNews: 21
ARWU: 15
csrank: 50

Apply Method:

You can apply multiple times.The application is handled by the instructor and is not interchangeable between different departments.

MSc Integrated Machine Learning Systems

• Fee£28,530
• 1 year

Condition

• First class degree in EE/CS
• Ielts 6.5 score 6/ TOEFL 92 score reading and writing 24-30 listening and speaking 20-30

Case

• con 88 (校友利)
• 85 Telecom(优留)

MSc Computer Science

• Fee£30,400
• 1 year

Condition

• One second class degree in a non-CS major
• Ielts 7.0 score 6.5/ TOEFL 100 score reading and writing 24-30 listening and speaking 20-30

University of Edinburgh

QS: 20
USNews: 28
ARWU: 31
csrank: 33

MSc Computer Science

• Fee-
• 1 year

Condition

• First class degree in most engineering majors
• Ielts 6.5 score 6.0/ TOEFL 92 score 20

Case

• No case of admission, it is said that because of military industry related not to accept Asians

MSc Signal Processing and Communications

• Fee-
• 1 year

Condition

• EE and signal related major first class degree
• Ielts 6.5 score 6.0/ TOEFL 92 score 20

USA

Cornell University

QS: 14
USNews: 23
ARWU: 13
csrank: 7

M.Eng. Electrical and Computer Engineering (Ithaca)

• Fee$56,550
• Duration: one year (most extensions: one and a half years)

Condition

• 3.8 GPA
• the GRE 320 +
• IELTS 7.0/ TOEFL small say 22 Read 20 listen 15 write 20
• Two letters of recommendation

Case

• gre320，Strong scientific research

M.Eng. Electrical and Computer Engineering (NewYork)

• Fee$58,586
• 1 year

Condition

• GPA 3.8+
• GRE 320+
• IELTS 7.0/ TOEFL small say 22 Read 20 listen 15 write 20
• Two letters of recommendation

Carnegie Mellon University

QS: 48
USNews: 82
ARWU: 95
csrank: 1

Master of Science in Information Networking

• Fee$50,100
• 2 Years

Condition

• GPA 3.9+
• GRE 330+
• Toefl 102
• Three letters of recommendation

Case

• 宁诺85+gre326(优留)

Columbia University

QS: 18
USNews: 7
ARWU: 8
csrank: 15

Master of Science in Electrical Engineering

Condition

• GPA 3.7+
• GRE 320+
• the toefl 102
• Three letters of recommendation
• There might be an interview

Singapore

National University of Singapore

QS: 11
USNews: 34
ARWU: 67
csrank: 16

• Different colleges can apply for multiple majors

Master of Technology in Software Engineering

• FeeS$5,350.00
• 1 year
• Prefer people with work experience

Condition

• GPA 3.8+
• GRE 320+
• IELTS 6.0/ TOEFL 85
• the interview

Msc. Electrical Engineering - CE

• Prefer people with work experience

Condition

• GPA
• Ielts 6.0/ TOEFL 90

Msc. Computer Science

• Prefer those with work experience
• There may be restrictions on changing majors

Condition

• GPA 3.8+
• GRE 320+
  • IELTS 6.0/ TOEFL 90 (optional)

Nanyang Technological University

QS: 11
USNews: 43
ARWU: 73
csrank: 53

• Different colleges may apply for multiple majors

Msc Artificial Intelligence

• FeeS$58,000.00
• 1 year

Condition

• GPA 3.8+
  • IELTS 6.5/ TOEFL 100 (optional)

MSc Computer Control & Automation

• FeeS$3,350.00
• 1 year

Condition

• GPA 3.6+
  • IELTS 6.5/ TOEFL 100

Canada

University of Toronto

QS: 29
USNews: 18
ARWU: 24
csrank: 18

MEng. Electrical and Computer Engineering

• Length12-24months
• All Fee400,000 RMB/year

Condition

• GPA 3.6+
  • IELTS 6.5 score 6.0/ TOEFL 100 writing 22
• gre
  • Three letters of recommendation

Switzerland

Eth Zurich

QS: 6
USNews: 25
ARWU: 19
csrank: 10

• Switching majors is not friendly
• Undergraduate school is important
• There is a quota for each region

Master Electrical Engineering and Information Technology

• 1.5 year

Condition

• GPA 3.8+ (top 5-10%)
  • IELTS 7.0/ TOEFL 100
  • GRE 320+ (not mandatory)
  • Three academic letters of recommendation
  • Total tuition and living expenses are 200,000 to 300,000 YUAN
  • With a scholarship.

Federal Institute of Technology in Lausanne

QS: 18
USNews: 45
ARWU: 78
csrank: 28

• Only one major
• No regional quotas, global competition for applicants

Electrical and electronic Engineering

• 1.5 year
  • Switching majors is not friendly
  • Total tuition and living expenses are 200,000 to 300,000 YUAN
  • With a scholarship.

Condition

• 3.8 GPA
• IELTS 7.0/ TOEFL 100
• Three letters of recommendation
• GRE 320+ (not mandatory)

Migrated blog from Typecho to Hexo.

After reading Chairman Mao’s theory of practice and contradiction, it was the first time to systematically come into contact with the methodology of dialectical materialism, and I deeply felt its power and nature. Combining my own previous experience and understanding, I refined the view of cognitive derivation.

Preface

From Pavlov’s dog bell experiment[1] to Festinger’s cognitive dissonance theory in the 1950s[2], to the Stanford prison experiment led by Professor Zimbardo in 1971[3], this A series of psychology students’ physical experiments that broke expectations reveals step by step that the role of people’s psychology does not seem to be what most people think. In fact, this seemingly important psychological discovery was actually put forward by Marx, Engels and others from a sociological point of view two centuries ago and perfected it into a theory. Later, Lenin, Stalin and others improved it through practice. After being introduced to China, it was collected by Mao Zedong, combined with the heritage of Chinese traditional culture, and developed into Mao Zedong’s thought of materialist dialectics. The formation of this theory stems from these people’s summary of the social phenomena they observe and the social movements they practice based on the theory. And this reasoning guided the founding of the Communist Party of China and solidly completed the miracle of domestic capital accumulation.

Dialectical materialism is a set of self-consistent methodology, which can effectively guide our life practice, conclude the theory from practice, and then apply the theory to the process of practice. The efficient operation of this cycle is precisely the ultimate meaning of human cognition.

in conclusion

Methodology is a very effective and important tool. It provides people with a set of paradigms (habits) to help people practice the model of “social practice -> knowledge -> theory -> social practice” more effectively.

references

[1] 巴甫洛夫 - 维基百科
[2] 認知失調 - 维基百科
[3] 斯坦福监狱实验 - 维基百科

Share the improved version of fried chicken nuggets~

Material preparation

• Chicken breast
• An egg
• Chopped green onion and garlic

Preliminary steps

• Cut chicken into small pieces, add cooking wine, light soy sauce, starch, egg white, stir well and marinate for 10 minutes
• Chicken nuggets rolled in flour

Core steps

• Hot fried chicken nuggets until browned
• Vegetable oil minced garlic pot
• Add a spoonful of light soy sauce, a spoonful of white vinegar, a handful of sugar and ketchup
• Add chicken nuggets, so that the chicken nuggets are covered with sauce
• Sprinkle with chopped green onions

Finished picture

Before I went to Europe for a tourist visa, I had to buy a traveler’s cheque as a proof of funds because I did not have a three-month bank flow. However, when I arrived in Europe, I found that traveler’s cheques were difficult to use. If I didn’t understand the market, I would be defrauded of 15%-20% handling fees. This blog records the pits and Tips we found in redeeming traveler’s checks!

[scode type=”info”]Experience One: Do not use traveler’s checks if possible[/scode]
[scode type=”info”]Experience Two: The minimum handling fee for travel exchange is around 4%[/scode]

If you don’t want to see the experience, you can directly transfer to the Tips where you can redeem traveler’s cheques at the end of the article!

My experience

During the Christmas holiday, I went to Europe with my roommates and a group of four on a DIY trip to 5 cities in Italy and Austria. Since the UK bank card has not been used for three months, it is not possible to apply for a visa by printing the record, so we chose another method-buying American Express’s Euro traveler’s cheque. As everyone knows, exchanging and using traveler’s checks is really a big pit.

According to the official website of traveler’s cheques, traveler’s cheques can be used directly in shops in many European cities. In this way, it’s definitely more cost-effective to spend it when traveling than to exchange it back in British pounds after returning to the UK. The British pound process requires a loss of 8%). Ran goose, we found through reading other people’s travel notes before departure that many stores in Europe cannot directly spend traveler’s checks (according to our actual travel situation later, we only saw the traveler’s check logo in several stores in Venice), so we When I decided to go, I changed all of them to Euros at the Red Marked Change at the airport.

But after I found the red Change at the first stop in Rome (pictured), I found that 700 euros could only give us more than 590 euros. This is really not the slightest loss. My subject checked the phone number of American Express on the spot. I called it and found that there is no location in Italy, but the other party suggested to change to the bank, saying that there is no loss (note that this is also a pit,,,). Since two people have already exchanged them, in order to stop the loss, we decided not to exchange the 700 Euro traveler’s cheques of the remaining two people, and kept them to the bank for exchange.

On the third day, we went to the Vatican to play. By the way, we went to the bank recommended by the staff of American Express nearby. We also called the Bank of China, but we were all told not to accept travel. How can this be neat?

At this time, I just found a bunch of changes around the Vatican, so I asked for a quote again. One of them originally only reported more than 590, but we heard that the other offered us a student discount of more than 610, and then it was a good deal and reported a 640. This is great, we are beginning to discover the doorway inside: there are actually no discounts, but I want to find an excuse to attract you. These changes are all profitable. You give them your travel, and they sell them to American Express elsewhere. There may be a little tax in the middle, but as long as they charge you at a lower price than the tax deducted If you buy it here, he will definitely make a profit (generally, he will make a lot of money), but it’s just the difference between earning more and less. And there are several changes in the local area. We mainly found the one with red change and the one with blue. If this family thinks that you are demanding and unacceptable, then the money will be made by others.

Therefore, at this time, if we want to get a higher offer, we have to pinpoint what is acceptable to others (it’s really too cruel to cut off people’s wealth, then it’s okay), and then let them have a sense of crisis. Increase the offer. You can ask a few companies first to see how much they generally give, and then tell him how much other companies give me a price. Next, this person may start to call the above to see what a higher price can be offered, and after a bunch of them, they will give you a slightly higher price. Haha, if you are not satisfied, you can ask another one. Ask (but be careful, if it is a different store in the same store, be careful, after all, there may be one person above them, maybe I will remember you). Generally speaking, if you say that the tax may be two or three percent, then you still have to earn a 20 or 30 pounds. (Of course, you can try to chop and chop again, but it may be more difficult. Big).

So our last two transactions were 640 Euros and 645 Euros respectively (645 Euros were replaced by a similar method).

Tips

• There are not too many places in Italy for travel and consumption. Among the Rome, Florence, and Venice we go to, there are only a few in Venice;
• If you want to exchange for Euro travel in Italy, you can only change it at the place marked with the change sign (Of course, some changes do not accept travel, but very few). There should be no direct exchange points for American Express, at least in Italy, so there is no way to exchange them without loss. But there are indeed many changes in Italy, especially near the Vatican;
• Don’t meet a family, if he quotes a very low price, you will accept it, and don’t believe him too much. You must know that this is probably because you don’t know the inside story;
• You can ask two families first to find out the situation. A rough estimate. If the tax may be two or three percent, then you still have to make people earn 20 or 30 pounds. First ask them for their quotation. You can say that the price is given to you by another family. Ask if they can give you a higher price. Of course, if you have a thin skin and are embarrassed to talk nonsense, you can just give them the price of this one when the price is lower than that of others.

to sum up

The above is all the personal experiences and small tips about the exchange of travel expenses. Of course, these are just some things summarized based on our personal experience, we still need to analyze the specific situation. If you want to go out and play, you still want to walk around more to see how you feel. Therefore, it is not recommended that you waste too much time on this matter when economic conditions permit, as long as you feel that it is almost acceptable. Finally, I still want to say that if you don’t need traveler’s checks to play in Italy, you should not use it. After all, it is really troublesome and there are pits everywhere!

Activate win10 Home Edition, Professional Edition, Enterprise Edition, Education Edition with one click φ(￣∇￣o)

Method one (automatic installation)

• To use this method, please close all antivirus software
• To use this method, please close all antivirus software
• To use this method, please close all antivirus software

p.s. If you are not assured, please use Method Two-Source Installation

• Click here to download the exe program

• Run the program you just downloaded. (Please do not modify the decompression path)
• Run the program you just downloaded. (Please do not modify the decompression path)

• Click More info -> still running

• Enter numbers to select. (You can enter the number 4 to get a Chinese translation!!)

• Wait patiently for the activation to complete~ ::aru:proud::

The script has been sent to the desktop kms.bat, you can delete it if you don’t need it~

Method two (source installation)

• Click here to download the compressed file.

• Unzip the compressed file (please unzip, otherwise it will not run)
• Unzip the compressed file (please unzip, otherwise it will not run)
• Unzip the compressed file (please unzip, otherwise it will not run)

• Double-click kms or kms.bat in the run folder.

• Click More info -> still running

• Enter numbers to select. (You can enter the number 4 to get a Chinese translation!!)

• Wait patiently for the activation to complete~ ::aru:proud::

Advanced

Activation code

Your activation code will be saved in C:\Windows\kms.key

Run log

• Activation log %temp%\kms.log
• Tried activation code %temp%\kms.tried_keys on this machine
• kms server configuration %temp%\kms.skms
• ato output information %temp%\kms.ato

Restore inactive state

• Enter kms.bat and select 3
• Wait for the uninstallation to complete! ! !

Source code

• Project address: iotcat/kms

Deploy your own new coronavirus API in one minute ୧(๑•̀⌄•́๑)૭

coro-api

Novel coronavirus real-time data api
Project Git address: iotcat/coro-api
Project npm address: iotcat/coro-api

API example

Get all

https://api.yimian.xyz/coro

According to province

https://api.yimian.xyz/coro?province=Shandong

According to the city

https://api.yimian.xyz/coro?city=泰安

According to the province and city (recommended)

https://api.yimian.xyz/coro?province=Shandong&city=Taian

Quick deployment

Environmental requirements

• nodeJS supports any version of express
• Any version of git

download file

1

$ git clone https://github.com/iotcat/coro-api.git & cd coro-api

Installation dependencies

1

$ npm install

start up

1

$ node index.js

Access

1

http://localhost:17676

Advanced

GET parameters

Modify port

Modify the default port from line 9 of index.js.

Cross-domain prohibited

Comment out line 13 of index.js.

Use pm2 daemon

1
2

$ npm i -g pm2
$ pm2 start index.js --name coro-api -o /var/log/coro/api.out -e /var/log/coro/api.err --watch

Nginx configuration

Add the following content to server{}

1
2
3

location / {
    proxy_pass http://127.0.0.1:17676;
}

If you are not mapping from the root directory, remember to go to the 11th line of index.js and change app.get('/', f) to your path.

Crawler configuration

The crawler uses coro-py, please refer to its documentation.

Open Source Agreement

This project uses the MIT protocol, allowing non-signed commercial and non-commercial use. Go Wuhan! Go China! ! ❤

Self-developed spicy beef noodle practice~

Material preparation (for two persons)

• Noodles
• Two eggs
• Two British scallions, minced
• Two slices of ginger minced
• Dice beef
• Prepare a small bowl with anise, cinnamon, white button, and a little white pepper

Preliminary steps

• Hot pot vegetable oil fragrant fried eggs
• Blanch the beef in hot water

Core steps

• Hot pot vegetable oil sesame oil, put the scallion part into the pot
• Add boiling water and beef cubes, add the seasoning in the bowl, and simmer for 3 minutes
• Add a spoonful of light soy sauce, half a spoonful of dark soy sauce, and a spoonful of oyster sauce
• Add appropriate amount of chicken essence and salt to adjust fresh
• Add appropriate amount of red vine pepper oil to adjust spicy
• Add the noodles and cook until cooked

Follow up

• Add the noodles to the bowl and cover with eggs
• Add the remaining green onion

With pictures

I studied in the UK, traveled to Europe on Christmas, and DIYed an Italian Schengen visa. Now come back from the tour, summarize a Schengen sign strategy.

General process

• Read Official Website conditions carefully to check whether you meet all the requirements
• Online Interview Appointment online as early as possible (the time can be modified later)
• Carefully study the required materials (must follow the official website)
• Generate visa application form (Online generation)
• Prepare other materials

Material category

Regular visa materials

• Visa application form
• personal I.D
• Proof of residence
• Photos

Additional visa materials

• Proof of employment
• Proof of property
• Travel certificate
• Proof of accommodation
• Insurance certificate

Material CheckList

• Original visa application form (print after online generation)
• Original passport + photocopy (black and white)
• BRP original + copy (black and white)
• A passport photo-consistent with the UK visa (Requirements)
• student letter
• Original traveler’s check + copy or three-month bank account
• Round-trip air ticket (name, date, to&from)
• Train ticket (name, date, to&from)
• Proof of accommodation (name, date, address)
• Companion list
• Travel insurance certificate (name, geographic area, insurance amount)
• Copy of appointment certificate

• Travel itinerary (for easy explanation with visa officer)
• joint travel confirmation letter (if your name is not on a certain ticket or accommodation certificate)
• Copy of the passport signature page of the ticket purchaser (if your name is not on the ticket or accommodation certificate)

Material Description

visa application form

• After filling out the first page online, remember to click SAVE, and write down the Reference Number ::aru:shy::
• Click RETRIEVE INCOMPLETE FILLED VAF above to continue to fill in after logging in next time
• Fill in the reference this guide
• Single-sided black and white A4 printing
• After printing, do not fill in, do not sign, do not post photos, the visa officer will tell you what to do
• Do not staple, it is recommended to use a loop pin

Student Letter

• Go to school FB to open
• A signature is required, and an electronically printed signature will not work
• Head up to write Italy Consulate

Travel Proof

• Need to provide paid air tickets and inter-city train tickets
  • A website link is required at the bottom of the ticket
• All tickets need to have your name
• If a ticket does not have your name, the person named on the ticket is required to provide a signed joint travel confirmation letter and a copy of passport
• Please refer to our joint travel confirmation letter
  

Proof of Accommodation

• paid is required on Booking Confirmation
• A website link is required at the bottom
• All materials need to have your name
• If you do not have your name, the person who has the name needs to provide a signed joint travel confirmation letter and a copy of passport
• It is recommended to order from well-known websites such as Booking

Insurance Certificate

• Be sure to cover the journey
• The longer the guarantee period, the longer the visa period. .
• We chose Taiping Insurance Schengen emergency visa for reference

Appointment Proof

• Go to the front desk downstairs to register with the appointment letter
• After that, the appointment letter is useless

Results

Finally, let me show the visa I got~

Leave a blank here first, then fill it in slowly~

φ(￣∇￣o)

In order to more clearly and intuitively choose the apartment to live in next year, this article summarizes the evaluation information of each apartment on the Internet for decision-making reference.

[scode type=”green”] Everyone is actively adding in the comment area, comments recommend using qq mailbox[/scode]
[scode type=”yellow”]Continuously updating…[/scode]
[scode type=”blue”]I hope you can add more listings for investigation[/scode]

All walking distances are centered on Guild! !

Dover Court (Our final choice)

• walking distance: 8 min (Northwest)
• google map: Dover Court
• Official Guide: Dover Court
• Pros: Close to Lidl, quiet, well managed, safe, cleaned regularly, good social place, quiet study room downstairs
• Disadvantages: Room soundproofing is average, some rooms are small, and some places have low ceilings
• Price: ￡155.54 pw (Last Year)

Horizon Heights

• walking distance: 14 min (West)
• google map: Horizon Heights

St Luke’s View

• walking distance: 13 min (southwest)
• google map: St Luke’s View

Apollo Court

• Walking distance: 11 min (Northwest)
• Classmates' reflections: Not quiet (Lao Lei)

Capital Gate

• walking distance: 7 min (Northwest)

Grand Central

• walking distance: 12 min (West)

Philharmonic Court

• Walking distance: 12 min (South)

The Railyard

• walking distance: 9 min (East)

Myrtle Court

• walking distance: 9 min (East)

Larch House

• walking distance: 7 min (West)

IQ

• walking distance: 9 min (Northwest)
• Connection: Lao Ye, Bulb

The Arch

• walking distance: 18 min (southwest)

Albert Court

• walking distance: 10 min (north)

St Andrews Place

• Walking distance: 10 min (Southwest)

The Ascent

• walking distance: 13 min (West)

Lee Court

• walking distance: 10 min (north)

X1 Liverpool One

• walking distance: 18 min (West)

X1 The Edge

• Walking distance: 12 min (Northwest)
• Others: Express can be sent to Cambridge Court (Liang Bin)

Cambridge Court

• walking distance: 8 min (south)
• google map: Cambridge Court
• Disadvantages: Poor sound insulation, damp carpets, poor conditions

Vita Student Liverpool

• walking distance: 21 min (West)

Liberty Park

• Disadvantages: Sound insulation is not good on the first and second floors
• Advantages: There is a small garden in the middle of Huizi Building (Jiaojiao, Xinyi)

I studied in the UK and shared with 4 roommates. In order to better control and monitor public expenditures and maintain the balance of public expenditures between each other, I designed and developed this ERP public expenditure planning system during the welcome Wednesday. I hope that this system will make life easier for the next year, reduce conflicts between everyone, and promote the sustainability of public expenditure projects full of happiness OωO

1. Function introduction

• Calculate the daily average weekly flow rate to visualize public expenditure
• The user declares a public expenditure and submits the invoice photo certificate
• Monitor the disequilibrium of expenditure among members, calculate the variance, and display it visually
• Compare spending this week and last week, and give the percentage increase or decrease
• When there is one person whose expenditure exceeds the average threshold, and there is at least one person whose expenditure is less than the average threshold, the two people will be emailed to generate an internal transaction
• When the recipient receives the money in the above example, he needs to go to the platform to confirm receipt
• All historical public expenditures and invoices on the platform can be checked

2. System Architecture

2.1 Frontend

The front end is based on a Bitcoin website platform template found on the Internet, and a deep transformation is realized. It is worth mentioning that the front end uses Ushio-js project as a security and logging plug-in, and got Ushio The system does behind the scenes.

2.2 Backend

The backend is written in php language. Provides 5 interfaces, which respectively provide the functions of obtaining account events, obtaining internal circulation information, obtaining public expenditure information, obtaining weekly statements, and operating.

The mail system is quickly constructed using Yimian Mail API.

2.3 Database

The database uses yimian-db/mysql. Three tables are constructed, which are used to store flow, public expenditure details, and internal circulation.

2.4 Image upload

Directly quote the code of 呓喵酱の图床 with a small amount of rewriting.

2.5 User System

At present, it is simple to implement with additional web pages, waiting for the ushio-auth project to complete the unified integration.

3. Appearance

2020-03-22 update

Due to the epidemic, considering that everyone has withdrawn to China. To save server costs, stop providing services.

Combining the operation status of the past six months, I have made some analysis and summary:

Main gains

1. Experience in analyzing the real needs of customers
2. Ability to quickly build production environment website tools
3. My roommate’s recognition of my ability

Development Methodology

1. Based on a series of past projects, quickly set up and put into use in 3 days
2. Carefully study the requirements and determine which are true and which are false.

Challenges encountered

1. Rapid development, because everyone has started to spend a lot of money on public goods after arriving in the UK, so there is an urgent need to use this system
2. The algorithm must be stable and reliable, because it involves everyone’s money
3. The purpose of this system is to make it more convenient to delegate the accounting work to the system for automated processing. In this way, the number of internal transactions between everyone must be as few as possible and the instructions must be clear under the premise of ensuring fairness.
4. How to make everyone trust the system.

Solution

1. Based on a large number of own previous projects. It takes 1 day to develop and form, 1 day to test debug, 1 day to optimize the front-end, add variance, percentage and other functions.
2. Refer to the accounting table and use the table mode. Every time there is a new upload, the new status will be calculated in real time. Tested many times and put into use after full verification.
3. Use the concept of “balance” and pay attention to differences. When the differences are too large, make internal transactions between those who spend the most and those who spend the least. And the internal transaction value is an integer. For example, our production scenario uses 20 pounds.
4. When the system algorithm is stable, refer to the design of Alipay. There are two steps to internal transactions. Both the first-choice payer and the earner receive emails telling to whom (from whom) and how much money. Then after the payer gives the money to the earner, the earner needs to log in to the web page or confirm it from the email link. As of this time, the system considers that an internal transaction is complete.

2020-9-8 update

Based on the Ushio user system, combined with the operation of the past six months and the changes in everyone’s needs, I reconstructed and developed a new version of the public expenditure system.

New features

• Achieved access to Ushio user system
• Users can register and create new public bills at any time
• The same user can be in multiple bills at the same time
• Users can join the public bill at any time
• Users can settle and exit a public bill at any time
• Smarter settlement algorithm
• Use LocalStorage to optimize the speed of secondary access

Experience

cp-acc is now open to the public, you can go to its website to experience it. But before the experience, you need to log in with your email address through the ushio user system in order to receive bill messages.

Hi~ This is the API of IoTcat’s Motto..

Parameters

• lang: (optional) Language setting. e.g. lang=en(English)/zh(Chinese)

Request address

1

GET https://api.yimian.xyz/words/

Example

1
2
3
4

//Get a random Chinese quotation
https://api.yimian.xyz/words/
//Get a random English quotation
https://api.yimian.xyz/words/?lang=en

Return value (plaintext)

1

Random sentence..