Sina

Sina may refer to:

Sina Corp

Sina (新浪) is a Chinese online media company. Sina operates four major business lines: Sina Weibo, Sina Mobile, Sina Online, and Sina.net. Sina has over 100 million registered users worldwide. Sina was recognized by Southern Weekend as the "China's Media of the Year" in 2003.

Sina owns Sina Weibo, a Twitter-like microblog social network, which has 56.5 percent of the Chinese microblogging market based on active users and 86.6 percent based on browsing time over Chinese competitors such as Tencent and Baidu. The social networking service has more than 500 million users and millions of posts per day, and is adding 20 million new users per month, says the company. The top 100 users now have over 180 million followers combined.

Sina.com is the largest Chinese-language web portal. It is run by Sina Corporation, which was founded in 1999. The company was founded in China, and its global financial headquarters have been based in Shanghai since October 1, 2001.

Sina App Engine (SAE) is the earliest and largest PaaS platform for cloud computing in China. It is run by SAE Department, which was founded in 2009. SAE is dedicated in providing stable, effective web deployment and hosting service for those corporations, organizations and independent developers. Now more than 300,000 developers in China are using SAE.

Sina and the Eel

Sina and the Eel is a myth of origins in Samoan mythology, which explains the origins of the first coconut tree.

In the Samoan language the legend is called Sina ma le Tuna. Tuna is the Samoan word for 'eel'.

The story is also well known throughout Polynesia including Tonga, Fiji and Māori in New Zealand.

Different versions of the legend are told in different countries in Oceania. The coconut tree (Cocos nucifera) has many uses and is an important source of food. It is also used for making coconut oil, baskets, sennit rope used in traditional Samoan house building, weaving and for the building of small traditional houses or fale. The dried meat of the coconut or copra has been an important export product and a source of income throughout the Pacific.

The legend of Sina and the Eel is associated with other figures in Polynesian mythology such as Hina, Tinilau, Tagaloa and Nafanua.

Sina is also the name of various female figures in Polynesian mythology. The word sina also means 'white' or silver haired (grey haired in age) in the Samoan language. There is also an old Samoan song called Soufuna Sina based on a Sina legend.

Gah

Gah may refer to:

List of craters on Mars: A-G

This is a list of craters on Mars. There are hundreds of thousands of impact craters on Mars, but only some of them have names. This list here only contains named Martian craters starting with the letter A – G (see also lists for H – N and O – Z).

Large Martian craters (greater than 60 km in diameter) are named after famous scientists and science fiction authors; smaller ones (less than 60 km in diameter) get their names from towns on Earth. Craters cannot be named for living people, and small crater names are not intended to be commemorative - that is, a small crater isn't actually named after a specific town on Earth, but rather its name comes at random from a pool of terrestrial place names, with some exceptions made for craters near landing sites. Latitude and longitude are given as planetographic coordinates with west longitude.

A

B

C

D

E

F

G

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Gallane

Gallane is an inorganic compound with the chemical formula GaH₃ . It has been detected as a transient species in the gas phase; also at low temperature (3.5 K) following the reaction of laser ablated gallium atoms and dihydrogen, and more recently in an argon matrix doped with vapour over solid digallane, Ga₂H₆.

Nomenclature

The systematic names, gallane and trihydridogallium, valid IUPAC names, are constructed according to the substitutive and additive nomenclatures, respectively.

Gallane is also used, systematically, to refer to the parent class containing gallane proper, and hence to categorise the members of the parent class. Care should be taken to avoid confusing the compound for the class.

Structure of monomeric GaH₃

I.R spectroscopic studies indicate that monomeric GaH₃ has a trigonal planar structure Theoretical Ga-H bond lengths have been calculated as being in the range 155.7 pm to 158.7 pm

Monomeric GaH₃ dimerises in the vapor phase to form Ga₂H₆, digallane(6) and the enthalpy change associated with the gas phase dissociation reaction Ga₂H₆ → 2GaH₃ has been experimentally estimated as 59 +/- 16 kJ mol⁻¹.