Summary

HandWiki is the world's largest wiki-style encyclopedia dedicated to science, technology and computing. It allows you to create and edit articles as long as you have external citations and login account. In addition, this is a content management environment that can be used for collaborative editing of original scholarly content, such as books, manuals, monographs and tutorials.

Expand All
Entries
Topic Review
Canadian Internet Registration Authority
The Canadian Internet Registration Authority (CIRA) (French: Autorité canadienne pour les enregistrements Internet ACEI) is the organization that manages the .ca country code top-level domain (ccTLD) for Canada. Its offices are located at 979 Bank Street in Ottawa, Ontario, Canada. CIRA sets the policies and agendas that support Canada's Internet community and Canada's involvement in international Internet governance. It is a member-driven organization with membership open to all that hold a .ca domain. As of May 2020, there were more than 2.9 million active .ca domains.
  • 1.1K
  • 09 Nov 2022
Topic Review
Cash Transfers
Cash transfers are direct transfer payments of money to eligible people. Cash transfers are usually provided by the state and federal government.
  • 771
  • 09 Nov 2022
Topic Review
Bose–Hubbard Model
The Bose–Hubbard model gives a description of the physics of interacting spinless bosons on a lattice. It is closely related to the Hubbard model which originated in solid-state physics as an approximate description of superconducting systems and the motion of electrons between the atoms of a crystalline solid. The model was first introduced by Gersch and Knollman in 1963 in the context of granular superconductors. (The term 'Bose' in its name refers to the fact that the particles in the system are bosonic.) The model rose to prominence in the 1980s after it was found to capture the essence of the superfluid-insulator transition in a way that was much more mathematically tractable than fermionic metal-insulator models. The Bose–Hubbard model can be used to describe physical systems such as bosonic atoms in an optical lattice, as well as certain magnetic insulators. Furthermore, it can also be generalized and applied to Bose–Fermi mixtures, in which case the corresponding Hamiltonian is called the Bose–Fermi–Hubbard Hamiltonian.
  • 1.8K
  • 10 Nov 2022
Topic Review
The Northern Celestial Masters
The Northern Celestial Masters type of the Way of the Celestial Master (simplified Chinese: 天师道; traditional Chinese: 天師道; pinyin: Tiān Shī Dào) Daoist movement existed in the north of China during the Southern and Northern Dynasties. The Northern Celestial Masters were a continuation of the Way of the Celestial Masters as it had been practiced in Sichuan province by Zhang Lu and his followers. After the community was forced to relocate in 215 CE, a group of Celestial Masters established themselves in Northern China. Kou Qianzhi, from a family who followed the Celestial Master, brought a new version of Celestial Master Daoism to the Northern Wei. The Northern Wei government embraced his form of Daoism and established it as the state religion, thereby creating a new Daoist theocracy that lasted until 450 CE. The arrival of Buddhism had great influence on the Northern Celestial Masters, bringing monasticism and influencing the diet of practitioners. Art produced in areas dominated by the Northern Celestial Masters also began to show Buddhist influence. When the theocracy collapsed, many Daoists fled to Louguan, which quickly became an important religious center. The Northern Celestial Masters survived as a distinct school at Louguan until the late 7th century CE, when they became integrated into the wider Daoist movement.
  • 1.3K
  • 09 Nov 2022
Topic Review
Outline of Geophysics
The following outline is provided as an overview of and topical guide to geophysics: Geophysics – the physics of the Earth and its environment in space; also the study of the Earth using quantitative physical methods. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations have a broader definition that includes the hydrological cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.
  • 1.4K
  • 09 Nov 2022
Topic Review
How Not to Be Wrong
How Not to Be Wrong: The Power of Mathematical Thinking, written by Jordan Ellenberg, is a New York Times Best Selling book that connects various economic and societal philosophies with basic mathematics and statistical principles.
  • 1.5K
  • 09 Nov 2022
Topic Review
Internationalized Country Code Top-Level Domain
An internationalized country code top-level domain is a top-level domain in the Domain Name System (DNS) of the Internet. IDN ccTLDs are specially encoded domain names that are displayed in an end user application, such as a web browser, in their language-native script or alphabet, such as the Arabic alphabet, or a non-alphabetic writing system, such as Chinese characters. IDN ccTLDs are an application of the internationalized domain name system to top-level Internet domains assigned to countries, or independent geographic regions. Although the domain class uses the term code, some of these ccTLDs are not codes but full words. For example, السعودية (as-Suʻūdiyya) is not an abbreviation of "Saudi Arabia", but the common short-form name of the country in Arabic. Countries with internationalized ccTLDs also retain their traditional ASCII-based ccTLDs. As of August 2018 there are 59 approved internationalized country code top-level domains, of them at least 47 used. The most used are .рф (Russia) with over 900,000 domains names, .台灣 (Taiwan) with around 500,000 and .中国 (China) with over 200,000 domains. Still as of 2018 around 20 countries using non-Latin script do not have an internationalized country code top-level domain, including Japan .
  • 2.6K
  • 10 Nov 2022
Topic Review
California Electricity Crisis
The California electricity crisis, also known as the Western U.S. energy crisis of 2000 and 2001, was a situation in which the United States state of California had a shortage of electricity supply caused by market manipulations and capped retail electricity prices. The state suffered from multiple large-scale blackouts, one of the state's largest energy companies collapsed, and the economic fall-out greatly harmed Governor Gray Davis's standing. Drought, delays in approval of new power plants,:109 and market manipulation decreased supply. This caused an 800% increase in wholesale prices from April 2000 to December 2000.:1 In addition, rolling blackouts adversely affected many businesses dependent upon a reliable supply of electricity, and inconvenienced many retail consumers. California had an installed generating capacity of 45 GW. At the time of the blackouts, demand was 28 GW. A demand-supply gap was created by energy companies, mainly Enron, to create an artificial shortage. Energy traders took power plants offline for maintenance in days of peak demand to increase the price. Traders were thus able to sell power at premium prices, sometimes up to a factor of 20 times its normal value. Because the state government had a cap on retail electricity charges, this market manipulation squeezed the industry's revenue margins, causing the bankruptcy of Pacific Gas and Electric Company (PG&E) and near bankruptcy of Southern California Edison in early 2001.:2–3 The financial crisis was possible because of partial deregulation legislation instituted in 1996 by the California Legislature (AB 1890) and Governor Pete Wilson. Enron took advantage of this deregulation and was involved in economic withholding and inflated price bidding in California's spot markets. The crisis cost between United States dollar 40 and $45 billion.:3–4
  • 2.7K
  • 10 Nov 2022
Topic Review
Diaspora
Diaspora is a free personal web server that implements a distributed social networking service. Installations of the software form nodes (termed "pods") which make up the distributed Diaspora social network. The project was founded by Dan Grippi, Maxwell Salzberg, Raphael Sofaer and Ilya Zhitomirskiy, students at New York University's Courant Institute of Mathematical Sciences. The group received crowdfunding in excess of $200,000 via Kickstarter. A consumer alpha version was released on 23 November 2010. Konrad Lawson, blogging for the Chronicle of Higher Education, suggested Diaspora in July 2011 as an alternative to corporately produced software.
  • 1.5K
  • 09 Nov 2022
Topic Review
Business Engineering
Business engineering (BE) is the development and implementation of business solutions, from business model to business processes and organizational structure to information systems and information technology (cf.). Business engineering focuses on developing innovative business solutions that take a sociotechnical systems (STS) approach. The STS approach addresses an enterprise as a total system in the same manner as an airplane system or an industrial facility, since they possess a similar level of complexity. Business engineering combines knowledge in the fields of business administration, Industrial Engineering, as well as information technology and connects it to all aspects of transformation, from means of presentation to process models to cultural and political considerations (cf. Baumöl/Jung).A person is referred to as a Business Engineer when the person is a hybrid between an entrepreneur and an engineer. They must poses the understanding of how the business world operates at both macro and micro levels and be in a position to come up with solutions based on various key elements.
  • 8.7K
  • 09 Nov 2022
  • Page
  • of
  • 863

Other Entry Collections

>>