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  • acid | Definition, Examples, Types, Uses, & Facts |

    2019-6-15 · ACID 事务具有4个特征,分别是原子性、一致性、隔离性和持久性,简称事务的ACID特性;一、原子性(atomicity) 一个事务要么全部提交成功,要么全部失败回滚,不能只执行其中的一部分操作,这就是事务的原子性 二、一致性(consistency)

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  • Acid - Simple English Wikipedia, the free encyclopedia

    2021-2-26 · 什么是数据库ACID? 事务在当今的企业系统无处不在,即使在高并发环境下也可以提供数据的完整性。一个事务是一个只包含所有读/写操作成功的集合。如下图: 一个事务本质上有四个特点ACID: Atomicity原子性 Consistency一致性 Isolation隔离性 原子性

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  • Acid - definition of acid by The Free Dictionary

    2016-8-4 · ACID ,是指在可靠 数据库 管理系统(DBMS)中, 事务 (transaction)所应该具有的四个 特性 :原子性(Atomicity)、一致性(Consistency)、隔离性(Isolation)、持久性(Durability).这是可靠 数据库 所应具备的几个 特性 .所以 ACID 就是这四大 特性 的缩写。. 原子性(Atomicity) 原子性意味着 数据库 中的 事务 执行是作为原子。.

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  • Acid - definition of acid by The Free Dictionary

    Acid definition is - a sour substance; specifically : any of various typically water-soluble and sour compounds that in solution are capable of reacting with a base to form a salt, redden litmus, and have a pH less than 7, that are hydrogen-containing molecules or ions able to give up a proton to a base, or that are substances able to accept an unshared pair of electrons from a base.

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  • Acid | Definition of Acid by Merriam-Webster

    2021-6-21 · ACID,是指数据库管理系统(DBMS)在写入或更新资料的过程中,为保证事务( transaction )是正确可靠的,所必须具备的四个特性: 原子性 ( 英语 : Atomicity (database systems) ) (atomicity,或称不可分割性)、一致性(consistency)、隔离性(isolation,又称独立性)、持久性 ( 英语 : Durability (database ...

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  • Hydrochloric acid | HCl - PubChem

    Hydrochloric acid, solution is a colorless watery liquid with a sharp, irritating odor. Consists of hydrogen chloride, a gas, dissolved in water.Sinks and mixes with water.Produces irritating vapor.

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  • Acid Rain and Water - USGS

    2021-7-13 · Now, acid rain is not pure acid falling from the sky, but rather it is rainfall or atmospheric moisture that has been mixed with elements and gases that have caused the moisture to become more acidic than normal. Pure water has a pH of 7, and, generally, rainfall is …

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  • The ACID Database Model - lifewire.com

    Acid3. To pass the test, a browser must use its default settings, the animation has to be smooth, the score has to end on 100/100, and the final page has to look …

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  • The Acid3 Test

    Le réseau de spectateurs ACID. Rencontres en salles. Ateliers, Master class, etc.. Publics jeunes. Projet ACID d'Éducation Artistique et Culturelle en lycées. Outils d'accompagnement. Dossiers politiques. ACID POP. Présentation.

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  • Acid (chemistry) | definition of Acid (chemistry) by ...

    acid [as´id] 1. sour. 2. a substance that yields hydrogen ions in solution and from which hydrogen may be displaced by a metal to form a salt. For the various acids, see under the specific name, such as acetic acid. All acids react with bases to form salts and water (neutralization). Other properties of acids include a sour taste and the ability to ...

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  • Acid | Sigma-Aldrich

    7-Deoxycholic acid, Desoxycholic acid, Deoxycholic acid, 3α,12α-Dihydroxy-5β-cholanic acid. CAS Number: 83-44-3. Molecular Weight: 392.57. Beilstein Registry Number: 3219882. Empirical Formula (Hill Notation): C 24 H 40 O 4. Product Number Product Description SDS; 1171273: United States Pharmacopeia (USP) Reference Standard:

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  • Drugs - Acid, LSD

    2013-3-24 · lsd or acid (tabs, trips, blotters, microdots) Acid is a powerful hallucinogenic drug that alters your perception of the outside world. Acid can turn you into a gibbering, giggling wreck, make the world seem like a magical place, and in one sublime experience, even make Cardiff City's football ground look like the San Siro stadium.

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  • What is Acid Rain? | Acid Rain | US EPA

    2021-6-29 · ACID, deutsch auch AKID, ist eine Abkürzung in der Informatik.Es beschreibt häufig erwünschte Eigenschaften von Transaktionen in Datenbankmanagementsystemen (DBMS) und verteilten Systemen.Es steht für englisch atomicity, consistency, isolation und durability.Man spricht im Deutschen auch von AKID-Eigenschaften (Atomarität, Konsistenz, Isolation und Dauerhaftigkeit).

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  • acid.uk.com - A©ID (Anti Copying In Design)

    2021-7-13 · Now, acid rain is not pure acid falling from the sky, but rather it is rainfall or atmospheric moisture that has been mixed with elements and gases that have caused the moisture to become more acidic than normal. Pure water has a pH of 7, and, generally, rainfall is …

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  • ACID – Wikipedia

    2021-5-20 · Acid rain definition is - rain that has increased acidity caused by environmental factors (such as atmospheric pollutants). How to use acid rain in a sentence.

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  • Acid Rain and Water - USGS

    Chlorogenic acid was isolated from green coffee beans. 210 It has also been found in the seeds and leaves of many dicotyledonous plants. It is thermally unstable and is readily decomposed to quinic acid and caffeic acid. Chlorogenic acid accounts for 5–10% of coffee beans, which is a much larger amount than caffeine (1–2%).

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  • Drugs - Acid, LSD

    2013-3-24 · lsd or acid (tabs, trips, blotters, microdots) Acid is a powerful hallucinogenic drug that alters your perception of the outside world. Acid can turn you into a gibbering, giggling wreck, make the world seem like a magical place, and in one sublime experience, even make Cardiff City's football ground look like the San Siro stadium.

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  • ACID – Wikipedia

    2021-6-29 · ACID, deutsch auch AKID, ist eine Abkürzung in der Informatik.Es beschreibt häufig erwünschte Eigenschaften von Transaktionen in Datenbankmanagementsystemen (DBMS) und verteilten Systemen.Es steht für englisch atomicity, consistency, isolation und durability.Man spricht im Deutschen auch von AKID-Eigenschaften (Atomarität, Konsistenz, Isolation und Dauerhaftigkeit).

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  • Acid - Wikipedia

    2021-6-30 · En bases de datos se denomina ACID a las características de los parámetros que permiten clasificar las transacciones de los sistemas de gestión de bases de datos.Cuando se dice que una acción es ACID compliant se indica -en diversos grados- que ésta permite realizar transacciones.. En concreto, ACID es un acrónimo en inglés de Atomicity, Consistency, Isolation and Durability: Atomicidad ...

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  • ACID - Wikipedia, la enciclopedia libre

    Le réseau de spectateurs ACID. Rencontres en salles. Ateliers, Master class, etc.. Publics jeunes. Projet ACID d'Éducation Artistique et Culturelle en lycées. Outils d'accompagnement. Dossiers politiques. ACID POP. Présentation.

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  • Acid rain facts and information - National Geographic

    Silicic acid, a compound of silicon, oxygen, and hydrogen, regarded as the parent substance from which is derived a large family—the silicates—of minerals, salts, and esters.The acid itself, having the formula Si(OH) 4, can be prepared only as an unstable solution in water; its molecules readily condense with one another to form water and polymeric chains, rings, sheets, or three ...

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  • Effects of Acid Rain | Acid Rain | US EPA

    2021-2-23 · Salicylic acid is a keratolytic (peeling agent) that causes shedding of the outer layer of skin. Salicylic acid topical (for the skin) is used in the treatment of acne, dandruff, seborrhea, or psoriasis, and to remove corns, calluses, and warts. Salicylic acid topical may also be used for purposes not listed in this medication guide.

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  • Acid rain facts and information - National Geographic

    Chlorogenic acid was isolated from green coffee beans. 210 It has also been found in the seeds and leaves of many dicotyledonous plants. It is thermally unstable and is readily decomposed to quinic acid and caffeic acid. Chlorogenic acid accounts for 5–10% of coffee beans, which is a much larger amount than caffeine (1–2%).

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  • Folic Acid | CDC

    2021-7-9 · Lipoic acid contains two thiol (sulfur) groups, which may be oxidized or reduced; dihydrolipoic acid is the reduced form of lipoic acid (Figure 1) . Lipoic acid also contains an asymmetric carbon, which means that lipoic acid can exist as one of two possible optical isomers, also called enantiomers.

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  • Acid - Wikipedia

    2021-7-12 · Acid. Money Merc, star du rap, incarné par Freddie Gibbs, n’a plus d’inspiration pour son prochain album. La quarantaine passée, il n’a plus qu’une envie : tout plaquer. Sous la pression ...

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  • Chlorogenic Acid - an overview | ScienceDirect Topics

    2021-2-23 · Salicylic acid is a keratolytic (peeling agent) that causes shedding of the outer layer of skin. Salicylic acid topical (for the skin) is used in the treatment of acne, dandruff, seborrhea, or psoriasis, and to remove corns, calluses, and warts. Salicylic acid topical may also be used for purposes not listed in this medication guide.

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  • Lipoic Acid | Linus Pauling Institute | Oregon State ...

    2021-7-13 · Alpha-lipoic acid is a vitamin-like chemical called an antioxidant. Yeast, liver, kidney, spinach, broccoli, and potatoes are good sources of alpha-lipoic acid.It is also made in the laboratory ...

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  • Recommendations: Women & Folic Acid | CDC

    2021-6-25 · 石家庄海天氨基酸有限公司成立于2003年,位于河北省藁城工业园区,是一家专注于氨基酸、食品添加剂及医药中间体的高新技术企业,公司集研、产、销为一体,拥有自营进出口权。

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