what does annealing mean
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Heat Treatment of Steels â Annealing Annealing is a process by which the properties of steel are enhanced to meet machinability requirements. Annealing is a process of heating the steel slightly above the critical temperature of steel (723 degrees Centigrade) and allowing it to cool down very slowly.slide 2 of 3.. Isothermal Annealing – This is a process where is steel is heated above the upper critical temperature. This causes the structure of the steel to be converted rapidly into austenite structure.
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Echo parameters in CRT patients selection Interventricular dyssynchrony refers to dyssynchrony between the left and the right ventricle and can be measured using conventional pulsed-wave Doppler or Tissue Doppler imaging (Figures 3 and 4, respectively).
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- The first step in a PCR cycle is the denaturation step. This is the PCR step in which the hydrogen bonds holding the complementary strands of DNA together are broken. The second step in a PCR cycle is the annealing step. The annealing step is the PCR step in which the primers anneal, or attach, to the DNA template. The third step in a PCR cycle is the extension step. The extension step, also referred to as the elongation step, is the PCR step in which Taq polymerase adds nucleotides to the annealed primer.
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Quenching Quenching is the soaking of a metal at a high temperature, above the recrystallization phase, followed by a rapid cooling process to obtain certain desirable material properties.
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LASHING • LASHING (noun) The noun LASHING has 2 senses: 1. beating with a whip or strap or rope as a form of punishment. 2. rope that is used for fastening something to something else. Familiarity information: LASHING used as a noun is rare. • LASHING (adjective) The adjective LASHING has 1 sense: 1. violently urging on by whipping or flogging Familiarity information: LASHING used as an adjective is very rare.
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hardening hardening - the process of becoming hard or solid by cooling or drying or crystallization; the hardening of concrete; he tested the set of the glue. 3. hardening - the act of making something harder (firmer or tighter or more compact) hardening.
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- PCR is the enzymatic amplification of a specific DNA sequence in vitro9. This process uses multiple cycles of template denaturation, primer annealing, and primer elongation to amplify DNA sequences. It is an exponential process since the amplified products from each previous cycle serve as templates for the next cycle of amplification,
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- Fire assaying is the quantitative determination in which a metal or metals are separated from impurities by fusion processes and weighed in order to determine the amount present in the original sample.or fire assaying ores, usually fluxes, materials such as borax, soda, silica are added to the ore. The amounts of each chemical added to the flux mixture depends upon the elements present in the particular ore, such as sulfur and iron.
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birth birth. a coming into being; the act or process of being born. See also parturition. birth canal. the canal through which the fetus passes in birth; comprising the uterus, cervix, vagina and vulva.remature birth. expulsion of the fetus from the uterus before termination of the normal gestation period, but after independent existence has become a possibility. In humans prematurity is defined as a pregnancy of less than 37 weeks in a pregnancy normally lasting 40 weeks.
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Birth For other uses, see Birth (disambiguation) and Childbirth. Lambing: the mother licks the first lamb while giving birth to the second. Birth, also known as parturition, is the act or process of bearing or bringing forth offspring. In human and mammals etc, the process is initiated by hormones which cause the muscular walls of the uterus to contract, expelling the fetus at a developmental stage when it is ready to feed and breathe.
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- In these circumstances, annealing takes place while the metal is worked rather than being a separate process. The metal can therefore be worked without it becoming work hardened. Hot working is usually carried out with the metal at a temperature of about 0.6 of its melting point.
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- German Meaning: The name Annemarie is a German baby name. In German the meaning of the name Annemarie is: Bitter grace. American Meaning: The name Annemarie is an American baby name.In American the meaning of the name Annemarie is: Bitter grace.SoulUrge Number: 3.n German the meaning of the name Annemarie is: Bitter grace. American Meaning: The name Annemarie is an American baby name. In American the meaning of the name Annemarie is: Bitter grace. SoulUrge Number: 3.
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EVOLUTION The noun EVOLUTION has 2 senses: 1. a process in which something passes by degrees to a different stage (especially a more advanced or mature stage). 2. (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms.Familiarity information: EVOLUTION used as a noun is rare.he noun EVOLUTION has 2 senses: 1. a process in which something passes by degrees to a different stage (especially a more advanced or mature stage). 2. (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms.
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Nucleic acid thermodynamics annealing Annealing, in genetics, means for complementary sequences of single-stranded DNA or RNA to pair by hydrogen bonds to form a double-stranded polynucleotide. The term is often used to describe the binding of a DNA probe, or the binding of a primer to a DNA strand during a polymerase chain reaction (PCR).
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Definitions &Translations This page provides all possible meanings and translations of the word birth. birth(noun) the time when something begins (especially life) they divorced after the birth of the child; his election signaled the birth of a new age. birth, nativity, nascency, nascence(noun) the event of being born. they celebrated the birth of their first child.
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ALLOY • ALLOY (noun). The noun ALLOY has 2 senses: 1. a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten. 2. the state of impairing the quality or reducing the value of something. Familiarity information: ALLOY used as a noun is rare.
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Definitions &Translations Freebase(0.00 / 0 votes)Rate this definition: Birth. Birth is the act or process of bearing or bringing forth offspring from the uterus. The offspring is brought forth from the mother. The time of human birth is defined as the time at which the fetus comes out of the mother's womb into the world. Different forms of birth are oviparity, vivipary and ovovivipary.
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- Definition of AMPLIFICATION. 1. a: an act, example, or product of amplifying b: a usually massive replication of genetic material and especially of a gene or DNA sequence (as in a polymerase chain reaction). 2.
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Definitions &Translations Princeton's WordNet (0.00 / 0 votes) Rate this definition: birth (noun). the time when something begins (especially life). they divorced after the birth of the child; his election signaled the birth of a new age. birth, nativity, nascency, nascence (noun). the event of being born.
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massacre A massacre is a big bloody mess of killing, and usually for no good reason. Not that there’s ever a good reason for killing, but massacres are especially pointless and gory. It’s unclear where the word massacre came from, but possibly it was the Old French word macacre, which means “slaughterhouse.” As a noun, massacre is a brutal slaughter of humans or animals, and it can be a verb as well, like when an army massacres an entire village of innocent people.
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What does annealing mean? Annealing is used to get the steel (or other metal) into its softest state, trying to cool it slowly enough to allow practically all of the crystals to transform from their high-temperature state, to the natural room-temperature state.he process involves heating the material above a transition temperature (the austenite or austenite-cementite temperature for steels), and then slowly (rapidly for aluminum and some others) cooling it. Rapid cooling can lock in strains and is used as a hardening process with many materials. injanier · 9 years ago.
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EXCITED • EXCITED (adjective). The adjective EXCITED has 4 senses: 1. in an aroused state. 2. (of persons) excessively affected by emotion. 3. marked by uncontrolled excitement or emotion. 4. (of e.g. a molecule) made reactive or more reactive. Familiarity information: EXCITED used as an adjective is uncommon.. in an aroused state. 2. (of persons) excessively affected by emotion. 3. marked by uncontrolled excitement or emotion. 4. (of e.g. a molecule) made reactive or more reactive. Familiarity information: EXCITED used as an adjective is uncommon.
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Annealing to Increase Metal Ductility The purpose of the anneal process is to increase the metal’s ductility. During cold-working there is damage to the metal on the microscopic level that causes a metal’s yield strength to increase and its ductility to decrease. After a certain amount of cold work, a metal cannot be cold worked anymore without cracking.
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Difference Between Annealing and Tempering Various heat treatment processes involve carefully controlled heating and cooling of metal. Steel, for example, is commonly heat treated for use in a variety of commercial applications. Common objectives of heat treatment are to: Increase strength. Increase hardness. Improve toughness. Improve machining.
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- ANNEAL: To heat metal in order to lower its hardness. The term anneal refers to the heat treatment given all 300 series stainless and most 400 series stainless by the steel mill after the raw material has been completed but before fittings are manufactured.
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What Is Annealing in Metallurgy? Updated September 10, 2016. Annealing is a heat treatment process used to bring a metal closer to its equilibrium state. In its heated, soft state, the uniform microstructure of a metal will allow for excellent ductility and workability. In order to perform a full anneal in ferrous metals, the material must be heated above its upper critical temperature long enough to fully transform the microstructure to austenite.