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Production of Calcite (Calcium Carbonate) Crystals by Soil ... - Nature

1973.12.21  CERTAIN bacteria form crystals from the solutes in their aqueous environment, and some authors have associated this activity with the extensive deposits

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Pelagic calcium carbonate production and shallow

2023.2.20  Introduction The marine calcium carbonate (CaCO 3) cycle is a key component of the global carbon cycle, and is intimately related to atmospheric CO 2 (ref.

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Calcite - an overview ScienceDirect Topics

Calcite replacement is a common phenomenon in deep volcanic rock and volcaniclastic rock. Calcite may replace phenocrysts in lava and crystal fragments in volcaniclastic

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Calcite : Properties, Formation, Occurrence and

2023.8.25  Formation and Geology of Calcite. Calcite forms through a variety of processes in different geological environments. It is a key mineral in sedimentary rocks like limestone and marble, and its formation is

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Analysis of calcium carbonate scaling and antiscaling

2022.9.1  Wanner et al. (2017) elucidated the causes of calcite scaling by analyzing the extensive geochemical dataset, and concluded that four processes could promote

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Diel cycles in calcite production and dissolution in a ... - setac

2010.2.9  1 Comisión Nacional de Energía Atómica, Buenos Aires, 1429 ArgentinaSearch for more papers by this author. Arthur J. Stewart, ... Calcite production

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Calcite Mineral Uses and Properties - Geology

The properties of calcite make it one of the most widely used minerals. It is used as a construction material, abrasive, agricultural soil treatment, construction aggregate, pigment, pharmaceutical and more. It has more

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Microbially Induced Calcite Precipitation (MICP): Review

2022.1.24  In this technique, this microorganism is responsible for the production of urease and hydrolysis of urea to form calcite (CaCO 3) (Cardoso et al. 2020). The

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In-Depth Profiling of Calcite Precipitation by Environmental

2020.3.18  A key feature of many known calcite precipitators is ureolysis, which leads to a rapid pH change in the environment due to the release of ammonia and subsequent

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Investigating mechanical properties and biocement application

2020.9.30  De Muynck et al. 15 discovered that the composition of nutrients during biodeposition ... E., Boronat, A. Ramos-Cormenzana, A. Production of calcite (calcium carbonate) crystals by soil bacteria ...

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Bacterial Carbonatogenesis and Applications to Preservation

Boquet, E., Boronat, A. and Ramos-Cormenzana, A. 1973. Production of calcite (calcium carbonate) crystals by soil bacteria is a common phenomenon. Nature 246: 527–529. CrossRef Google Scholar Callot G., Guyon A. and Mousain, D. 1985. Inter-relations entre aiguilles de calcite et hyphes mycéliens. Agronomie 5: 209–216.

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方解石（碳酸钙矿物）_百度百科

2004.8.17  方解石是地壳最重要的造岩矿石。. 英文名:calcite，属变岩， 碳酸盐矿物 ，化学成分：CaCO ，三方晶系，三组完全 解理 ，断口; 玻璃光泽 .完全透明至 半透明 ，普通为白色或无色，因含有其它金属致色元

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Formations of calcium carbonate minerals by bacteria and its

2016.3.1  Microbially induced calcite precipitation (MICP) refers to the formation of calcium carbonate from a supersaturated solution due to the presence of their microbial cells and biochemical activities (Bosak 2011).During MICP, organisms are able to secrete one or more metabolic products (CO 3 2−) that react with ions (Ca 2+) in the environment

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Apache Calcite SQL Parser 原理剖析 - 知乎

2023.10.21  注意：本文基于 Calcite 1.35.0 版本源码进行学习研究，其他版本可能会存在实现逻辑差异，对源码感兴趣的读者请注意版本选择。 本文首发于个人博客 Apache Calcite SQL Parser 原理剖析，转载请注明原始链接。前言

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Responses of soybean, Glycine max (L.) Merr. to dolomite and calcite ...

2023.7.4  ABSTRACT. Dolomite [CaMg(CO 3) 2] is used widely for soybean, Glycine max (L.) Merr. production in Japan to amend soil pH, although magnesium (Mg) in the dolomite can inhibit soybean growth and yield. The aim of this study was to determine the effect of Mg on soybean production in a paddy – upland rotation field in 2019–2020 by

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Analysis of calcium carbonate scaling and antiscaling

2022.9.1  Wanner et al. (2017) elucidated the causes of calcite scaling by analyzing the extensive geochemical dataset, and concluded that four processes could promote calcite scaling (i) decompression of the produced fluid, (ii) pH increase, (iii) stripping of CO 2 from the aqueous fluid, and (iv) boiling within the geothermal well. Antiscaling measures.

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Fiche 33. La calcite - L’aragonite - La dolomite Cairn Sciences

La calcite et l’aragonite, de formule CaCO3, sont des minéraux du groupe des carbonates. La calcite peut s’observer en cristaux isolés, incolores, parfois de grande taille, mais son faciès le plus classique est blanc crème (photo 1). Ceux-ci sont souvent de forme rhomboédrique avec des faces brillantes et bien développées selon des ...

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Synthesis of precipitated calcium carbonate: a review

2017.3.9  De Beer M (2014) The production of precipitated calcium carbonate from industrial gypsum wastes. Doctoral dissertation, University of North West South Africa. de Leeuw NH, Parker SC (1998) Surface structure and morphology of calcium carbonate polymorphs calcite, aragonite, and vaterite: an atomistic approach. J Phys Chem B

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产脲酶微生物诱导钙沉淀及其工程应用研究进展 - NJU

摘要/Abstract. 摘要： 产脲酶微生物诱导的碳酸钙沉淀是自然界生物矿化的重要组成部分，这一过程依靠微生物代谢产生的脲酶，高效催化尿素水解产生的碳酸根离子进而与钙离子形成碳酸钙沉淀．从产脲酶MICP矿化机理、微生物分布和工程应用三个方面，探讨了 ...

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Pelagic calcium carbonate production and shallow

2023.2.20  Our foraminiferal calcite production estimate at Station 5 is 9 mg m-2 day-1, ... Ziveri, P., de Bernardi, B., Baumann, K.-H., Stoll, H. M. Mortyn, P. G. Sinking of coccolith carbonate and ...

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The contribution of calcareous green algae to the

2012.3.1  A SHORT LIST OF LIVING CALCAREOUS GREEN ALGAE. Among the agencies most strongly promoting prolific occurrences of marine photosynthetic benthic algae are the intensity of light (it is

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Coccolithophore Abundance, Degree of Calcification, and

2022.3.22  Particulate inorganic carbon (PIC) production and export to deep ocean are important processes in water column carbonate cycling. Biochemistry investigations have shown that the seawater PIC in eutrophic high-latitude waters is contributed by marine calcifying algae coccolithophores which are constituted by the nearly monospecies

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高温地热生产井碳酸钙结垢定量评价：水文地球化学——以 ...

2022.3.25  The results show that CO 2 partial pressure has controlling effect on the precipitation of calcite. The maximum scaling thickness with 14-25 mm occurs 10-20 m above the flash depth for one-year production. Under the assumption that all the precipitation of calcite adheres to the wellbore wall, the scaling thickness is about 200 mm.

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Research status and development of microbial induced

2022.7.22  Microbially induced calcite production in shake flasks and colloidal calcite-induced mineralization in quartz sand structures is exhibited in below. The SEM morphologies at different magnifications were different. ... De Muynck W, De Belie N, Verstraete W. Microbial carbonate precipitation in construction materials: a review[J].

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Apache Calcite 框架原理入门和生产应用 - 知乎

2022.8.2  1. 简介. Calcite 是什么？. 如果用一句话形容 Calcite，Calcite 是一个用于优化异构数据源的查询处理的基础框架。. 最近十几.来，出现了很多专门的数据处理引擎。. 例如列式存储 (HBase)、流处理引擎 (Flink)、文档搜索引擎 (Elasticsearch) 等等。. 这些引擎在

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方解石 - 搜狗百科

2023.9.5  方解石（Calcite），俗名大方解、小方解，是一种碳酸钙矿物，是晶体属三方晶系的碳酸盐矿物，因敲击方解石可以得到很多方形碎块，故名方解。 方解石呈玻璃光泽，完全透明至半透明，普通为白色或无色，因其中含有的杂质不同而呈现出淡红、淡黄、淡茶、玫红、紫等多种颜色，条痕白色，晶体 ...

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Eocene emergence of highly calcifying coccolithophores

2022.9.1  Coccolithophores, a group of unicellular calcifying phytoplankton, have been major contributors to marine carbonate production since the calcite plates that they produce (coccoliths) first ...

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La pétrologie du calcaire Dossier - Futura

2006.2.9  Le calcaire est de nos jours une roche presque exclusivement d'origine biogénique, c'est-à-dire qu'elle est fabriquée par des êtres vivants : algues, mollusques, etc. Il existe quelques ...

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Calcaire Types, propriétés, composition, formation, utilisations

2023.10.21  Calcaire. Le calcaire est un Roche sédimentaire composé principalement de carbonate de calcium (CaCO3) sous forme minérale calcite or aragonite. C'est l'un des plus courants et des plus largement distribués. roches sur Terre, avec un large éventail d'utilisations dans diverses industries et milieux naturels.

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Calcite(一)：javacc语法框架及使用 - 阿牛20 - 博客园

2021.8.8  是一个动态数据管理框架。 它包含许多组成典型数据库管理系统的部分，但省略了存储原语。它提供了行业标准的SQL解析器和验证器，具有可插入规则和成本函数的可自定义优化器，逻辑和物理代数运算

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Apache Calcite 为什么能这么流行 - 知乎

2019.9.1  今天，我想从设计的角度聊下为什么 Calcite 能这么流行。. 足够简单和 focus 的定位. 通常我们可以把一个数据库管理系统分为上图的五个组件。. Calcite 在设计之初就确定了自己只关注和实现图中绿色标识

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Calcium carbonate nano- and microparticles: synthesis

2021.10.7  Calcium carbonate micro- and nanoparticles are considered as chemically inert materials. Therefore, they are widely considered in the field of biosensing, drug delivery, and as filler material in plastic, paper, paint, sealant, and adhesive industries. The unusual properties of calcium carbonate-based nanomaterials, such as biocompatibility,

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A sustainable production of biocement via microbially

2022.8.1  Both of the calcite agglomerates in sand column I and II were unrepresentative morphologies of calcite, appeared as the unstable intermediate aggregates during the equilibrium form of calcite formation, which is consistent with the prenucleation clusters proposed in previous studies (De Yoreo et al., 2015; Demichelis et al., 2011;

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Apache Calcite——新增DDL语法支持_calcite ddl-CSDN博客

2021.8.29  Calcite中的流式SQL总体设计思路 总体语法应该兼容SQL，这个是和目前流处理SQL的发展趋势是一致的。 如果部分功能标准SQL中没有包含，则尽量采用 业界标杆（Oracle） 。比如模式匹配的功能，目前流处理中还没有针对语法达成共识，那么在设计上，采用Oracle data warehouse的Match Recognize的方式。

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Impact of inherent calcium in coal on the structure and

2023.11.20  Then ash-free coal (De-coal) was achieved while the ash amount in coal was lower than 1%, in this work, the ash content was reduced to 0.85%. It should be mentioned that the De-coal should use deionized (D.I.) water to wash until pH = 7 for AC production. The calcite's XRD patterns and SEM images of De-coal and calcite are

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The role of phosphate on non-skeletal carbonate production

2022.1.15  The present study is based on carbonate rocks retrieved from a core comprising 198.1 m of uninterrupted cored interval across the upper Barra Velha Fm, which occupies a stratigraphic position above the Intra-Alagoas unconformity (e.g., Moreira et al., 2007).The core comes from the same area studied by Liechoscki de Paula Faria et al.,

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java - 【Calcite】Apache Calcite 框架初探及概念详解 - 个人 ...

2021.10.18  基于这个背景， Calcite 横空出世，它提供了标准的 SQL 语言、多种查询优化和连接各种数据源的能力 ，将数据存储以及数据管理的能力留给引擎自身实现。. 同时 Calcite 有着良好的可插拔的架构设计 ，我们可以只使用其中一部分功能构建自己的 SQL 引

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Characterization and quantification of calcite distribution in

2023.5.21  A new approach integrating micro X-ray fluorescence (μ-XRF) and digital image processing is proposed to quantify the spatial distribution of calcium carbonate crystals for microbial-induced calcite precipitation (MICP)-treated sand. Scanning the entire MICP-treated sample slice with the μ-XRF imaging method presents an overview of the

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