y型過濾器安裝方式 相關
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Admittance parameters or Y-parameters (the elements of an admittance matrix or Y-matrix) are properties used in many areas of electrical engineering, such as power, electronics, and telecommunications. These parameters are used to describe the electrical behavior of linear electrical networks.
Artificial intelligence (AI), in its broadest sense, is intelligence exhibited by machines, particularly computer systems.It is a field of research in computer science that develops and studies methods and software that enable machines to perceive their environment and use learning and intelligence to take actions that maximize their chances of achieving defined goals. [1]
- History
- Features
- Wechat Business
- Marketing
- Platforms
- Controversies
- Censorship
- See Also
WeChat began as a project at Tencent Guangzhou Research and Project center in October 2010. The original version of the app was created by Allen Zhang and named "Weixin" (微信) by Ma Huateng, CEO of Tencent and launched in 2011. The government has actively supported the development of the e-commerce market in China—for example in the 12th five-year p...
Messaging
WeChat provides text messaging, hold-to-talk voice messaging, broadcast (one-to-many) messaging, video calls and conferencing, video games, photograph and video sharing, as well as location sharing. WeChat also allows users to exchange contacts with people nearby via Bluetooth, as well as providing various features for contacting people at random if desired (if people are open to it). It can also integrate with other social networking services such as Facebook and Tencent QQ. Photographs may...
Public accounts
WeChat users can register as a public account (公众号), which enables them to push feeds to subscribers, interact with subscribers and provide them with services. Users can also create an official account, which fall under service, subscription, or enterprise accounts. Once users as individuals or organizations set up a type of account, they cannot change it to another type. By the end of 2014, the number of WeChat official accounts had reached 8 million. Official accounts of organizations can a...
Moments
"Moments" (朋友圈) is WeChat's brand name for its social feed of friends' updates. "Moments" is an interactive platform that allows users to post images, text, and short videos taken by users. It also allows users to share articles and music (associated with QQ Musicor other web-based music services). Friends in the contact list can give thumbs up to the content and leave comments. Moments can be linked to Facebook and Twitter accounts, and can automatically post Moments content directly on thes...
WeChat Business (微商) is one of the latest mobile social network business model after e-commerce, which utilizes business relationships and friendships to maintain a customer relationship. Comparing with the traditional E-business like JD.com and Alibaba, WeChat Business has a large range of influence and profits with less input and lower threshold,...
Campaigns
In a 2016 campaign, users could upload a paid photo on "Moments" and other users could pay to see the photo and comment on it. The photos were taken down each night.
Collaborations
In 2014, Burberry partnered with WeChat to create its own WeChat apps around its fall 2014 runway show, giving users live streams from the shows. Another brand, Michael Korsused WeChat to give live updates from their runway show, and later to run a photo contest "Chic Together WeChat campaign". In 2016, L'Oréal China cooperated with Papi Jiangto promote their products. Over one million people watched her first video promoting L'Oreal's beauty brand MG. In 2016, WeChat partnered with 60 Italia...
WeChat's mobile phone app is available only to Android and iOS. BlackBerry, Windows Phone, and Symbian phones were supported before. However, as of 22 September 2017, WeChat was no longer working on Windows Phones. The company ceased the development of the app for Windows Phones before the end of 2017. Although Web-based OS X and Windows clients ex...
State surveillance and intelligence gathering
WeChat operates from China under Chinese law, which includes strong censorship provisions and interception protocols. Its parent company is obliged to share data with the Chinese government under the China Internet Security Law and National Intelligence Law. WeChat can access and expose the text messages, contact books, and location histories of its users. Due to WeChat's popularity, the Chinese government uses WeChat as a data source to conduct mass surveillance in China. Some states and reg...
Privacy issues
Users inside and outside of China also have expressed concern for the privacy issues of the app. Human rights activist Hu Jia was jailed for three years for sedition. He speculated that the officials of the Internal Security Bureau of the Ministry of Public Security listened to his voicemail messages that were directed to his friends, repeating the words displayed within the voice mail messages to Hu Jia. Chinese authorities have further accused the WeChat app of threatening individual safety...
XcodeGhost malware
In 2015, Apple published a list of the top 25 most popular apps infected with the XcodeGhost malware, confirming earlier reports that version 6.2.5 of WeChat for iOS was infected with it. The malware originated in a counterfeit version of Xcode (dubbed "XcodeGhost"), Apple's software development tools, and made its way into the compiled app through a modified framework. Despite Apple's review process, WeChat and other infected apps were approved and distributed through the App Store. Even tho...
Global censorship
Starting in 2013, reports arose that Chinese-language searches even outside China were being keyword filtered and then blocked. This occurred on incoming traffic to China from foreign countries but also exclusively between foreign parties (the service had already censored its communications within China). In the international example of blocking, a message was displayed on users' screens: "The message "南方周末" your message contains restricted words. Please check it again." These are the Chinese...
Two censorship systems
In 2016, the Citizen Labpublished a report saying that WeChat was using different censorship policies in mainland China and other areas. They found that: 1. Keyword filtering was only enabled for users who registered via phone numbers from mainland China; 2. Users did not get notices anymore when messages are blocked; 3. Filtering was more strict on group chat; 4. Keywords were not static. Some newfound censored keywords were in response to current news events; 5. The Internal browser in WeCh...
Restricting sharing websites in "Moments"
In 2014, WeChat announced that according to "related regulations", domains of the web pages that want to get shared in WeChat Moments need to get an Internet Content Provider (ICP) license by 31 December 2014 to avoid being restricted by WeChat.
Romeo (styled ROMEO, and until 2021 named PlanetRomeo) is a social network for gay, bisexual, queer and transgender people. The site was started as a hobby and was called GayRomeo in October 2002 by Planetromeo GmbH in Berlin, Germany.[3] [4] Initially only available in German, the site — and later, its mobile app — have evolved into an international platform.
Telegram was launched in 2013 by the brothers Nikolaiand Pavel Durov. Previously, the pair founded the Russian social network VK, which they left in 2014, saying it had been taken over by the government.[23] Pavel sold his remaining stake in VK and left Russia after resisting government pressure.[24]
Bessel functions, first defined by the mathematician Daniel Bernoulli and then generalized by Friedrich Bessel, are canonical solutions y(x) of Bessel's differential equation for an arbitrary complex number , which represents the order of the Bessel function.
Amazon.com, Inc.,[1] doing business as Amazon (/ˈæməzɒn/, AM-ə-zon; UK also /ˈæməzən/, AM-ə-zən), is an American multinational technology company, engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence.[5] It is considered one of the Big Five American technology companies, the ...
y型過濾器安裝方式 相關
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