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QG Triplice Macedoine
QG may refer to: Science and technology * Quantum gravity, a theory in physics that aims to unify general relativity and quantum mechanics * Quasigeostrophic, an atmospheric dynamics theory; see Geostrophic wind * Quadrature Generator; see quadrature amplitude modulation * Nissan QG engine, an automotive engine series * ATCvet code QG, ''Genito-urinary system and sex hormones'', a section of the Anatomical Therapeutic Chemical Classification System for veterinary medicinal products * ''quod google (q.g.)'', an internet variation on Latin reference ''quod vide'' to indicate further information available Other uses * Quetta Gladiators, a cricket team franchise in Pakistan Super League * Queen's Gambit, a chess opening move * Citilink PT Citilink Indonesia, operating as Citilink, is a low-cost airline headquartered in Jakarta, Indonesia. Established in July 2001 as a low-cost brand of Garuda Indonesia, it operates shuttle services between Indonesian cities. Since 30 July 2012 ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Gravity
Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics; it deals with environments in which neither gravitational nor quantum effects can be ignored, such as in the vicinity of black holes or similar compact astrophysical objects, such as neutron stars. Three of the four fundamental forces of physics are described within the framework of quantum mechanics and quantum field theory. The current understanding of the fourth force, gravity, is based on Albert Einstein's general theory of relativity, which is formulated within the entirely different framework of classical physics. However, that description is incomplete: describing the gravitational field of a black hole in the general theory of relativity leads physical quantities, such as the spacetime curvature, to diverge at the center of the black hole. This signals the breakdown of the general theory of relativity and the need for a theory that goes b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geostrophic Wind
In atmospheric science, geostrophic flow () is the theoretical wind that would result from an exact balance between the Coriolis force and the pressure gradient force. This condition is called '' geostrophic equilibrium'' or ''geostrophic balance'' (also known as ''geostrophy''). The geostrophic wind is directed parallel to isobars (lines of constant pressure at a given height). This balance seldom holds exactly in nature. The true wind almost always differs from the geostrophic wind due to other forces such as friction from the ground. Thus, the actual wind would equal the geostrophic wind only if there were no friction (e.g. above the atmospheric boundary layer) and the isobars were perfectly straight. Despite this, much of the atmosphere outside the tropics is close to geostrophic flow much of the time and it is a valuable first approximation. Geostrophic flow in air or water is a zero-frequency inertial wave. Origin A useful heuristic is to imagine air starting from rest, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadrature Amplitude Modulation
Quadrature amplitude modulation (QAM) is the name of a family of digital modulation methods and a related family of analog modulation methods widely used in modern telecommunications to transmit information. It conveys two analog message signals, or two digital bit streams, by changing (''modulating'') the amplitudes of two carrier waves, using the amplitude-shift keying (ASK) digital modulation scheme or amplitude modulation (AM) analog modulation scheme. The two carrier waves are of the same frequency and are out of phase with each other by 90°, a condition known as orthogonality or quadrature. The transmitted signal is created by adding the two carrier waves together. At the receiver, the two waves can be coherently separated (demodulated) because of their orthogonality property. Another key property is that the modulations are low-frequency/low-bandwidth waveforms compared to the carrier frequency, which is known as the narrowband assumption. Phase modulation (analog PM) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nissan QG Engine
The QG engine is a , , and straight-4 piston engine from Nissan. It is a lean-burn aluminum DOHC 4-valve design with variable valve timing and optional ''NEO Di'' direct injection. The QG engines were designed by Nissan's Aichi Kikai division in Japan. Nissan websites state the QG as standing for "Quality and Green". QG13DE The QG13DE is a DOHC 16-valve with 4-cylinder. It produces at 6000 rpm and at 4400 rpm. Bore x Stroke= It is used in the following vehicles: * 1999- Nissan Wingroad/ADVAN Y11 Series * 1998- Nissan Sunny * 2005- Nissan Sentra N16 series for low-end models (Philippines) QG15DE Water-cooled straight 4 cylinder engine with capacity and DOHC control. Bore and stroke are . Output is at 5600 rpm and at 2800 rpm and later at 6000 rpm and at 4400 rpm. This engine is used in: * Nissan sunny * Samsung SM3 * Nissan Tiida Power outputs for N16 Almera: * '00-'02: 90ps * '02-'06: 98ps QG16DE The QG16DE is a straight 4-c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quod Vide
This article lists direct English translations of common Latin phrases. Some of the phrases are themselves translations of Greek phrases, as Greek rhetoric and literature reached its peak centuries before that of ancient Rome In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 B .... A B C D E F G H I L M N O P Q R S T U V Footnotes References Additional references * * {{Latin phrases full ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quetta Gladiators
Quetta Gladiators (Urdu, Balochi: ; Pashto: کویټه ګلیډیټرز) is a Pakistani professional Twenty20 cricket franchise that competes in the Pakistan Super League (PSL). They play most home games at the 27,000-capacity Gaddafi Stadium. The Gladiators won and became the champions in PSL 2019. The team is nominally based in Quetta, the provincial capital of Balochistan, Pakistan. The franchise was established in 2015 as a result of the formation of PSL by the Pakistan Cricket Board (PCB). The team's homeground is Bugti Stadium. The team is captained by Sarfaraz Ahmed and coached by former Pakistani wicket-keeper Moin Khan and Azam Khan is the team's manager. Abdul Razzaq is the assistant coach. The leading run-scorer of the team is Sarfaraz Ahmed while the leading wicket-taker is Mohammad Nawaz. Franchise history In December 2015, the Pakistan Cricket Board unveiled the owners of all five city-based franchises for the inaugural season of the Pakistan Super League ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen's Gambit
The Queen's Gambit is the chess opening that starts with the moves: :1. d4 d5 :2. c4 It is one of the oldest openings and is still commonly played today. It is traditionally described as a ''gambit'' because White appears to sacrifice the c-pawn; however, this could be considered a misnomer as Black cannot retain the pawn without incurring a disadvantage. History The Queen's Gambit is one of the oldest known openings in chess. It was mentioned in the Göttingen manuscript of 1490 and was later analyzed by Gioachino Greco in the 17th century. In the 18th century, it was recommended by Philipp Stamma and is sometimes known as the Aleppo Gambit in his honor. During the early period of modern chess, queen pawn openings were not in fashion, and the Queen's Gambit did not become commonplace until the 1873 tournament in Vienna. As Wilhelm Steinitz and Siegbert Tarrasch developed chess theory and increased the appreciation of , the Queen's Gambit grew more popular, reaching its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
