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U Rating (other)
U is the twenty-first letter of the Latin alphabet. U may also refer to: Science Mathematics * \cup, union (set theory) * U-set, a set of uniqueness * U, the unitary group Chemistry * Uranium, symbol U, a chemical element * u, the Dalton (unit), a unified atomic mass unit to express atomic and molecular masses Astronomy * U, ultraviolet magnitude, in a UBV photometric system * U, an October 16 through 31 discovery in the provisional designation of a comet * U (TNO), a possible extremely distant trans-Neptunian object Computing * , a now-deprecated HTML element denoting underlined text * U, representing 1.75" as the minimal height of a rack unit * U, representing a 10x10x10cm CubeSat * U, universal Turing machine Biology * U, abbreviation for uracil * U, mitochondrial haplogroup U Other scientific uses * U, a common notation for potential energy * U, the middle of an edge joining a hexagonal and a square face of the Brillouin zone of a face-centered cubic lattice, in soli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Union (set Theory)
In set theory, the union (denoted by ∪) of a collection of sets is the set of all elements in the collection. It is one of the fundamental operations through which sets can be combined and related to each other. A refers to a union of zero (0) sets and it is by definition equal to the empty set. For explanation of the symbols used in this article, refer to the table of mathematical symbols. Union of two sets The union of two sets ''A'' and ''B'' is the set of elements which are in ''A'', in ''B'', or in both ''A'' and ''B''. In set-builder notation, :A \cup B = \. For example, if ''A'' = and ''B'' = then ''A'' ∪ ''B'' = . A more elaborate example (involving two infinite sets) is: : ''A'' = : ''B'' = : A \cup B = \ As another example, the number 9 is ''not'' contained in the union of the set of prime numbers and the set of even numbers , because 9 is neither prime nor even. Sets cannot have duplicate elements, so the union of the sets and is . Multip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Activity
In pharmacology, biological activity or pharmacological activity describes the beneficial or adverse effects of a drug on living matter. When a drug is a complex chemical mixture, this activity is exerted by the substance's active ingredient or pharmacophore but can be modified by the other constituents. Among the various properties of chemical compounds, pharmacological/biological activity plays a crucial role since it suggests uses of the compounds in the medical applications. However, chemical compounds may show some adverse and toxic effects which may prevent their use in medical practice. Activity is generally dosage-dependent. Further, it is common to have effects ranging from beneficial to adverse for one substance when going from low to high doses. Activity depends critically on fulfillment of the ADME criteria. To be an effective drug, a compound not only must be active against a target, but also possess the appropriate ADME (Absorption, Distribution, Metabolism, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lost Dogs (album)
''Lost Dogs'' is a two-disc compilation album by the American alternative rock band Pearl Jam, released on November 11, 2003 through Epic Records. The album has been certified gold by the RIAA in the United States. Overview ''Lost Dogs'' is a double-disc collection of B-sides and other released and unreleased rarities. ''Lost Dogs'' sold 89,500 copies in its first week of release and debuted at number fifteen on the ''Billboard'' 200 chart. ''Lost Dogs'' has been certified gold by the RIAA. A number of songs included on ''Lost Dogs'' differ from the originally released versions, including "Alone", "U", "Wash" and "Dirty Frank". The album includes the hidden track "4/20/02" at the end of disc two, a tribute to Alice in Chains frontman Layne Staley. It was written by vocalist Eddie Vedder during the recording sessions for ''Riot Act'' on the day that he heard the news of Staley's death. The song features only Vedder singing and playing the guitar in a ukulele-inspired tuning. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remain (KNK EP)
''Remain'' is the second extended play (EP) by South Korean boy group KNK. It contains six tracks, including the lead single, "U". Background and release On November 7, 2016, YNB Entertainment announced KNK's comeback by sharing the cover image of their second EP titled ''Remain'' through their official SNS channels. A group and "White version" individual image teasers were unveiled on the next two days. The track list was also released on November 10, revealing that Kim Tae-joo once again worked with KNK as the producer, while tracks "Goodbye" and "Tonight" were composed and written by members Youjin and Heejun respectively. On November 13, KNK released an album preview which gave sneak peeks of each song. A new set of individual image teasers called "Black version" was released the next day. On November 15, the music video teaser for the lead single, "U", was released, however it was announced the following day that the agency and the members decided to dispose the music video ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U (NiziU Album)
''U'' is the debut studio album by Japanese girl group NiziU. It was released on November 24, 2021, through JYP Entertainment and Sony Music Entertainment Japan , often abbreviated as SMEJ or simply SME, and also known as Sony Music Japan for short (stylized as ''SonyMusic''), is a Japanese music arm for Sony. Founded in 1968 as CBS/Sony, SMEJ is directly owned by Sony Group Corporation and is opera .... The album has 12 tracks including its 5 singles released previously, the lead single "Chopstick", and the special single "Need U" with an addition of 7 more tracks from the album's limited edition version B. The album was released in three physical versions, one normal version and two limited edition versions, A and B. Track listing Charts Weekly charts Monthly charts Year-end charts References {{Authority control 2021 albums JYP Entertainment albums Sony Music Entertainment Japan albums NiziU albums ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U (album)
''U'' is a double album, the seventh studio album overall, by the British psychedelic folk group the Incredible String Band (ISB) and was released on Elektra Records in October 1970. The majority of the material featured on the album was taken from the mixed-media production of the same name, which saw the band backed by the dancing troupe the Stone Monkey. The concept of ''U'' derived from the ISB's fascination and subsequent conversion to Scientology in 1969. Although the show, along with the songs, were seen as ambitious, ''U'' was a commercial failure for the ISB. The album managed to chart at number 183 on the ''Billboard'' 200,Whitburn, Joel; ''Joel Whitburn's Top Pop Albums'', 1955-1996; p. 366. fairing considerably better in the UK where it peaked at number 34 on the UK Albums Charts. Background In 1969, after researching its concepts, the members of the ISB had joined the Church of Scientology, and expressed some of their changing views on their subsequent stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U (Super Junior Song)
"U" is a song by South Korean pop group Super Junior, and is the group's follow-up release to their debut album ''Twins''. The single topped CD sales charts during the first several weeks after its release on June 7, 2006. "U" peaked at #1 on the monthly MIAK K-pop album charts and sold 91,416 copies by 2008. The song won a total of five music recognitions, being Super Junior's most successful single in the music charts until the release of "Sorry, Sorry" in March 2009. Promotional performances for the title song, "U", did not complete until September 2006. The last general performance for the song was in August 2007 in Tokyo, Japan. Since the Korean release of "U" in 2006, there has been two more releases of "U" in two different languages, Mandarin and Japanese. The Mandarin version of the single's title song "U" was released in a special Taiwan edition on June 15, 2007. On July 9, 2008, "U / Twins" was released in Japan, which included a Japanese version of "U" in the limited ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U (Kendrick Lamar Song)
U or u, is the twenty-first and sixth-to-last letter and fifth vowel letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''u'' (pronounced ), plural ''ues''. History U derives from the Semitic waw, as does F, and later, Y, W, and V. Its oldest ancestor goes to Egyptian hieroglyphics, and is probably from a hieroglyph of a mace or fowl, representing the sound v.html"_;"title="Voiced_labiodental_fricative.html"_;"title="nowiki/>Voiced_labiodental_fricative">v">Voiced_labiodental_fricative.html"_;"title="nowiki/>Voiced_labiodental_fricative">vor_the_sound_[Voiced_labial–velar_approximant.html" ;"title="Voiced_labiodental_fricative">v.html" ;"title="Voiced_labiodental_fricative.html" ;"title="nowiki/>Voiced labiodental fricative">v">Voiced_labiodental_fricative.html" ;"title="nowiki/>Voiced labiodental fricative">vor the sound [Voiced labial–velar approximant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thermal Transmittance
Thermal transmittance is the rate of transfer of heat through matter. The thermal transmittance of a material (such as insulation or concrete) or an assembly (such as a wall or window) is expressed as a U-value. The thermal insulance of a structure is the reciprocal of its thermal transmittance. U-value Although the concept of U-value (or U-factor) is universal, U-values can be expressed in different units. In most countries, U-value is expressed in SI units, as watts per square metre-kelvin: :W/(m2⋅K) In the United States, U-value is expressed as British thermal units (Btu) per hour-square feet-degrees Fahrenheit: :Btu/(h⋅ft2⋅°F) Within this article, U-values are expressed in SI unless otherwise noted. To convert from SI to US customary values, divide by 5.678. Well-insulated parts of a building have a low thermal transmittance whereas poorly insulated parts of a building have a high thermal transmittance. Losses due to thermal radiation, thermal convection and ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Transfer Coefficient
In thermodynamics, the heat transfer coefficient or film coefficient, or film effectiveness, is the proportionality constant between the heat flux and the thermodynamic driving force for the flow of heat (i.e., the temperature difference, ). It is used in calculating the heat transfer, typically by convection or phase transition between a fluid and a solid. The heat transfer coefficient has SI units in watts per square meter kelvin (W/m2/K). The overall heat transfer rate for combined modes is usually expressed in terms of an overall conductance or heat transfer coefficient, . In that case, the heat transfer rate is: :\dot=hA(T_2-T_1) where (in SI units): *: surface area where the heat transfer takes place (m2) *: temperature of the surrounding fluid (K) *: temperature of the solid surface (K) The general definition of the heat transfer coefficient is: :h = \frac where: *: heat flux (W/m2); i.e., thermal power per unit area, q = d\dot/dA *: difference in temperature bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micro-
''Micro'' (Greek letter μ ( U+03BC) or the legacy symbol µ (U+00B5)) is a unit prefix in the metric system denoting a factor of 10−6 (one millionth). Confirmed in 1960, the prefix comes from the Greek ('), meaning "small". The symbol for the prefix is the Greek letter μ ( mu). It is the only SI prefix which uses a character not from the Latin alphabet. "mc" is commonly used as a prefix when the character "μ" is not available; for example, "mcg" commonly denotes a microgram. This may be ambiguous in rare circumstances in that ''mcg'' could also be read as a ''micrigram'', i.e. 10−14 g; however the prefix '' micri'' is not standard, nor widely known, and is considered obsolete. The letter u, instead of μ, was allowed by an ISO document, but that document has been withdrawn in 2001, however DIN 66030:2002 still allows this substitution. Examples * Typical bacteria are 1 to 10 micrometres (1–10 µm) in diameter. * Eukaryotic cells are typically 10 to 100 micrometre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
