LightPollution Map) is a public service website, mainly to show the status of light pollution around the world at this moment online, users can view the light pollution situation around the world through the map.

Terminology. "Light pollution is a problem that arises from the excessive use of lighting systems by humans. The most obvious effect is the disappearance of stars in the night sky of cities covered by the lights of many buildings. This has affected the study of the observation of the universe and has upset the ecological balance. Since the early 1980s, the Global Dark Sky Campaign has been launched to encourage people to reduce the use of lighting systems to reduce the problem of light pollution."

Light pollution is a by-product of industrial development, mainly from home lighting, advertising, commercial products, office buildings, factories, street lights and large open-air sports fields. The countries affected by light pollution are mainly developed countries, such as the United States, European countries and Japan. It is worth noting that a small amount of light damage can also create a rather serious problem.

Types of Light Damage: Light damage is a confluence of many problems, most of which come from inefficient, annoying and unnecessary artificial light sources. The main types of light hazards can be divided into four types: light disturbance, glare, clutter and haze. Usually the annoying light is one of these four types. Light pollution wastes energy and increases the danger, destroys the dark sky, and may damage the health of humans and animals.

JanDi is a communication platform for team communication developed by a Korean start-up company. JanDi is a communication platform developed by a Korean startup for team communication, similar to Slack, but more suitable for Chinese users; since its birth in 2014, it has introduced many good features and created its own characteristics. It is more suitable for a large number of internal team discussions and project information triage and assignment.

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1.You can create different team discussion platforms for each team individually, with no upper limit of team members.

2. You can open different issue channels within the team to allow public and private conversations to be streamed and different project discussions to be streamed.

3. Discussions with asterisks, announcements, designations, questionnaires, etc. can be used as task assignments and prompts.

4. The message can be inserted in the file sharing, a single team platform free capacity of 5GB.

5. Powerful message search and filtering with Chinese language support, the free version can search the last 15,000 messages.

6. Integrate with Google Drive, Dropbox, Google Calendar and Trello and other cloud tools to collaborate on the communication platform.

7. There is a web version, computer software, cell phone App, can be used across platforms.

JANDI creates or joins multiple team platforms, each "team" can have a separate and exclusive communication platform, and you can manage and join multiple teams at the same time. In each team, you can be a different person, with a different name, title, and avatar.

Journal Evaluation Analysis (SCImago Journal & Country Rank) website is a journal ranking portal, covering almost all the country's issued journals and magazines, the platform through the Google algorithm to target different journals for comprehensive ranking, the most important is that you can search through the site for journals.

After searching for a journal through the site, the user can analyze it through various data, including graphs and charts. The SCImago database gives the quality of each journal in each field, with Q1, Q2, Q3, Q4, where Q1 journals are the highest ranked journals.

PageKit:Enterprise CMS Lightweight PageKit is a module-based, lightweight CMS system, based on Symfony framework and Razr template engine, currently supports Mysql or Sqlite as the database, stylish design, neat structure; compared to wordpress, drupal is more excellent.

Pagekit is a free open source base MIT-licensed system, you can freely modify, share and redesign the development without any restrictions; in addition to free use, there is also a built-in extension and theme market, where you can download a variety of excellent themes and functional plug-ins.

DeepL is a translation system released by a German start-up company that claims to have achieved a new breakthrough in NMT A new breakthrough in technology has been achieved, creating the " world's most accurate, most natural language organization of machine translation system", DeepL translation has supported 42 European languages such as English, German, French and Spanish.

In view of the many thresholds of data, computing power, algorithms, etc. Since the productization of neural machine translation (NMT), it has been largely a playing field for the Internet giants. DeepL The company announced that it had beaten Google Translate and Microsoft and Facebook's NMT systems in a blind test organized by the company, which was very provocative.

DeepL has built a supercomputer in Iceland that claims to be the 23rd highest performing HPC in the world with 5.1 petaFLOPS of floating point computing power. We are very proud of our computational speed: millions of words translated per second.

DeepL invited professional translators to blind test the DeepL translation, Google Translate, Microsoft Translate, and Facebook's NMT The testers were asked to select the best translation results. Three groups of languages were tested: English-German, English-French, and English-Spanish, with a sample of 100 sentences.