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
Miscanthus X Giganteus
Miscanthus × giganteus, also known as the giant miscanthus, is a sterile hybrid of Miscanthus sinensis and Miscanthus sacchariflorus. It is a perennial grass with bamboo-like stems that can grow to heights of 3–4 metres (13 ft) in one season (from the third season onwards). Just like Pennisetum purpureum, Arundo donax and Saccharum ravennae, it is also called elephant grass. Miscanthus × giganteus' perennial nature, its ability to grow on marginal land, its water efficiency, non-invasiveness, low fertilizer needs, significant carbon sequestration and high yield have sparked significant interest among researchers, with some arguing that it has "ideal" energy crop properties. Some argue that it can provide negative emissions, while others highlight its water cleaning and soil enhancing qualities. There are practical and economic challenges related to its use in the existing, fossil based combustion infrastructure, however. Torrefaction and other fuel upgrading techniques are being explored as countermeasures to this problem.
  • 3.0K
  • 01 Dec 2022
Topic Review
Immunological Constant of Rejection
The Immunologic Constant of Rejection (ICR), is a notion introduced by biologists to group a shared set of genes expressed in tissue destructive-pathogenic conditions like cancer and infection, along a diverse set of physiological circumstances of tissue damage or organ failure, including autoimmune disease or allograft rejection. The identification of shared mechanisms and phenotypes by distinct immune pathologies, marked as a hallmarks or biomarkers, aids in the identification of novel treatment options, without necessarily assessing patients phenomenologies individually.
  • 1.1K
  • 01 Dec 2022
Biography
Günter Bechly
Günter Bechly (born October 16 1963 in Sindelfingen) is a German paleontologist and entomologist, who works with fossil insects (especially dragonflies). From 1999 to 2016 he was scientific curator for amber and fossil insects at the Staatliches Museum für Naturkunde Stuttgart. [1] Bechly studied from 1987 to 1991 biology at the University of Hohenheim and from 1991 to 1994 zoology, parasit
  • 1.1K
  • 01 Dec 2022
Topic Review
Applications of VR
Applications of VR (also known as virtual reality) can be found in fields as diverse as entertainment, marketing, education, medicine, and many others. They provide numerous possibilities for users to explore virtual realities for various purposes.
  • 3.8K
  • 01 Dec 2022
Biography
Gabriele Veneziano
Gabriele Veneziano (born 7 September 1942)[1] is an Italian theoretical physicist and one of the pioneers of string theory.[2][3] He has conducted most of his scientific activities at CERN in Geneva, Switzerland, and held the Chair of Elementary Particles, Gravitation and Cosmology at the Collège de France in Paris from 2004 to 2013.[2] Gabriele Veneziano was born in Florence. In 1965, he ea
  • 1.6K
  • 01 Dec 2022
Topic Review
New Energy Vehicles in China
This article will talk about the market of new energy vehicles in China and why the government supports it.The stock of new energy vehicles in China is the world's largest, with cumulative sales of 5.5 million units through December 2020. These figures include passenger cars and heavy-duty commercial vehicles such buses and sanitation trucks, and only accounts for vehicles manufactured in the country. Of these, there were 4.9 million new energy vehicles in use at the end of 2020, accounting for 1.75% of all vehicles in circulation in China. The Chinese government uses the term new energy vehicles (NEVs) to designate plug-in electric vehicles eligible for public subsidies, and includes only battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs) and fuel cell electric vehicles (FCEV). Sales of new energy vehicles since 2011 passed the 500,000 unit milestone in March 2016, and the 1 million mark in early 2017, both, excluding imports. Cumulative sales of new energy passenger cars achieved the 500,000 unit milestone in September 2016, and 1 million by the end of 2017. Domestically produced passenger cars account for 96% of new energy car sales in China. (As of December 2020), China had the largest stock of highway legal plug-in passenger cars with over 4.5 million units, 42% of the global plug-in car fleet in use. China also dominates the plug-in light commercial vehicle and electric bus deployment, with its stock reaching over 500,000 buses in 2019, 98% of the global stock, and 247,500 electric light commercial vehicles, 65% of the global fleet. In addition, the country also leads sales of medium- and heavy duty electric trucks, with over 12,000 trucks sold, and nearly all battery electric. China has been the world's best-selling plug-in electric passenger car market for five years running, from 2015 to 2019, with annual sales rising from more than 207,000 plug-in passenger cars in 2015, to 579,000 in 2017, and just over  million units both in 2018 and 2019. A particular feature of the Chinese passenger plug-in market is the dominance of small entry level vehicles, in 2015 representing 87% of total pure electric car sales, while 96% of total plug-in hybrid car sales were in the compact segment. BYD Auto ended 2015 as the world's best selling manufacturer of highway legal light-duty plug-in electric vehicles, and for a second year running was the world's top selling plug-in car manufacturer with over 100,000 units delivered in 2016. During 2016 BYD became the world's all-time second largest plug-in electric passenger car manufacturer after the Renault-Nissan Alliance. The BYD Qin was the top selling new energy passenger car for two years in a row, 2014 and 2015. The BYD Tang was the best selling plug-in passenger car in 2016. Until December 2016, the Qin ranked as the all-time top selling plug-in electric car in the country with 68,655 units sold since its inception. The BAIC EC-Series all-electric city car was the top selling plug-in car in 2017, and with 78,079 units sold, it also listed as world's top selling plug-in car in 2017. The government's political support for the adoption of electric vehicles has four goals, to create a world-leading industry that would produce jobs and exports; energy security to reduce its oil dependence which comes from the Middle East; to reduce urban air pollution; and to reduce its carbon emissions. In June 2012 the State Council of China published a plan to develop the domestic energy-saving and new energy vehicle industry. The plan set a sales target of 500,000 new energy vehicles by 2015 and 5 million by 2020. As sales of new energy vehicles were slower than expected, in September 2013, the central government introduced a subsidy scheme providing a maximum of US$9,800 toward the purchase of an all-electric passenger vehicle and up to US$81,600 for an electric bus.
  • 9.3K
  • 01 Dec 2022
Biography
Dorothy J. Phillips
Dorothy Jean Phillips (née Wingfield) (born July 27, 1945) is an African-American Chemist and Director-at-Large of the American Chemical Society. She worked on circular dichroism and bioseparation. In 1967 Phillips was the first African-American woman to complete a bachelor's degree at Vanderbilt University. Phillips grew up in segregation in the southern United States.[1] She was one of eig
  • 1.8K
  • 01 Dec 2022
Topic Review
Vilevolodon
Vilevolodon is an extinct, monotypic genus of volant, arboreal euharamiyids from the Oxfordian age of the Late Jurassic of China. The type species is Vilevolodon diplomylos. The genus name Vilevolodon references its gliding capabilities, Vilevol (Latin for “glider”), while don (Greek for “tooth”) is a common suffix for mammalian taxon titles. The species name diplomylos refers to the dual mortar-and-pestle occlusion of upper and lower molars observed in the holotype; diplo (Greek for “double”), mylos (Greek for “grinding”). Vilevolodon is known from the Tiaojishan Formation in Qinglong County, China. Due to its unique combination of characters, Vilevolodon provides additional evidence to an increasingly complex scope of mammalian morphology and niche inhabitation. As the volant herbivorous lifestyle is previously only known from therian gliders, Vilevolodon stands as evidence of locomotor convergence, as well as mammaliaform evolutionary experimentation during the Jurassic. Along with Maiopatagium, Vilevolodon represents the most primitive known gliders in mammalian evolution, appearing approximately 100 million years before the earliest known therian gliders.
  • 1.0K
  • 01 Dec 2022
Biography
Vera Stanley Alder
Vera Dorothea Stanley Alder (29 October 1898 – 26 May 1984) was an English portrait painter and mystic. She wrote several books and pamphlets on self-help and spirituality. She founded the World Guardian Fellowship. Vera Dorothea Stanley Alder was born 29 October 1898 at Eglingham, near Alnwick, Northumberland.[1] Her father David Julius Alder (born 3 April 1871) was Danish and her mother
  • 1.7K
  • 01 Dec 2022
Topic Review
Fangzhou UAV
Fangzhou UAVs are Chinese UAVs developed by Suzhou Fangzhou (meaning Ark) Aerial-Model Co., Ltd. (Fangzhou, 苏州方舟航模有限公司). Originally a successful model aircraft manufacturer, Tiancai has expanded its business into UAV arena based on the experience gained in developing model aircraft. Currently, all UAV developed by Fangzhou are unmanned blimps in categories listed below.
  • 751
  • 01 Dec 2022
  • Page
  • of
  • 863
>>