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7141
The influence of adding B. subtilis bacteria on the mechanical and chemical properties of cement mortar
Published 2025-01-01“…Fourier-transform infrared spectroscopy (FTIR) confirmed the presence of hydroxyl, carbonate, and silicate groups, with bacterial samples having a higher carbonate content, indicating an increase in calcium carbonate formation and microstructure. …”
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7142
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7143
The Systematic Theory on Geomorphology with Emphasis on Glacial Areas (Case Study, Oshtorankuh region)
Published 2022-03-01“…It is often calcareous and carbonate and the carbonate nature of the environment activates the dissolution process in the environment. …”
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7144
Gas-Solid Reaction Properties of Fluorine Compounds and Solid Adsorbents for Off-Gas Treatment from Semiconductor Facility
Published 2012-01-01“…This paper describes the fluorine compound adsorption properties of both the solid adsorbents—calcium carbonate and the sodium compound—for the optimal design of the fixation furnace. …”
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7145
Nanorestore® for the consolidation of wall paintings
Published 2010-11-01“…The influence of environmental conditions outside the wall (high humidity environments and high presence of hygroscopic salts) on carbonation process was considered.…”
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7146
The geology of Sierra Calderona (SE Iberian Cordillera, Spain), a review. Results of a new 1:25.000 scale geological mapping
Published 2024-12-01“…A new geological mapping of Sierra Calderona (SE Iberian Cordillera) has confirmed the widespread presence of the Muschelkalk M2 unit overlying a ubiquitous Muschelkalk M1 carbonate unit. Thus, the allocation of this range in the Levantine-Balearic Triassic Domain is not justified and a previous assignment of the entire Muschelkalk carbonate succession of this region to the M3 unit is untenable. …”
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7147
Sanctuary for vulnerable Arctic species at the Borealis Mud Volcano
Published 2025-01-01“…The surrounding seafloor within the mud volcano features extensive carbonate deposits, indicating prolonged diffuse methane migration. …”
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7148
A Geochemical Model of Fluids and Mineral Interactions for Deep Hydrocarbon Reservoirs
Published 2017-01-01“…Combining this model with PHREEQC functionalities, CO2-CH4-brine-carbonate-sulfate equilibrium is calculated. From the calculations, we conclude that, for CO2-CH4-brine-carbonate systems, at deeper positions, magnesium is more likely to be dissolved in aqueous phase and calcite can be more stable than dolomite and, for CO2-CH4-brine-sulfate systems, with a presence of CH4, sulfate ions are likely to be reduced to S2− and H2S in gas phase could be released after S2− saturated in the solution. …”
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7149
Microfacies of the Tulian Horizon (Visean Stage, Lower Carboniferous) of the Sikaza 2 section (Southern Urals, Russia)
Published 2021-09-01“…In this article, a lithofacies description of the carbonate deposits of the Tulian Horizon of the Visean Stage in the Sikaza 2 section near the Sikasi River was performed based on the microfacies analysis of carbonate rock sections of the samples from the collection of the Museum of Geology and Mineral Resources of the Republic of Bashkortostan (Ufa, Russia). …”
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7150
Polysaccharides, Proteins, and Phytoplankton Fragments: Four Chemically Distinct Types of Marine Primary Organic Aerosol Classified by Single Particle Spectromicroscopy
Published 2010-01-01“…Carbon-containing aerosol particles collected in the Arctic and southeastern Pacific marine boundary layers show distinct chemical signatures of proteins, calcareous phytoplankton, and two types of polysaccharides in Near-Edge Absorption X-ray Fine Structure (NEXAFS) spectromicroscopy. …”
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7151
Beginning of the metal age in the central Balkans according to the results of the archeometallurgy
Published 2009-01-01“…These mines are also the evidence for the local exploitation of the carbonate copper minerals - malachite and azurite. …”
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7152
MINERALOGY AND ORE FORMATION CONDITIONS OF THE NAILY GOLD DEPOSIT (SOUTH URALS)
Published 2024-12-01“…The paper examines mineralogy of noble metals and ore formation conditions at the Naily gold deposit (South Urals), which is hosted in pyrite-bearing talc-carbonate, chlorite-quartz-carbonate and quartz-carbonate metasomatites after serpentinites and rocks of a gabbrodiorite-plagiogranite complex. …”
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7153
Hydrogeochemistry, Geothermometry, and Genesis of the Hot Springs in the Simao Basin in Southwestern China
Published 2019-01-01“…The hydrochemical constituents of the hot springs in the metamorphic rocks, carbonate rocks, and red beds are influenced by the weathering of albite and the dissolution of carbonate, gypsum, anhydrite, and halite. …”
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7154
Property Optimisation of EPDM Rubber Composites Using Mathematical and Statistical Strategies
Published 2017-01-01“…The contents of components other than calcium carbonate, paraffinic oil, and CBS vulcanising accelerator, as well as additives and processing conditions, were kept constant. …”
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7155
Catalyst-Free and Highly Selective N,N-Diallylation of Anilines in Aqueous Phase
Published 2013-01-01“…A highly selective diallylation reaction of anilines with allyl bromide was achieved in aqueous alcohol solution in the presence of potassium carbonate and without the use of any catalyst. The reaction tolerates a wide range of functionalities, and various tertiary amines were obtained in the yield of up to 99% with complete conversion of anilines.…”
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7156
Mechanical Behavior and Microstructural Study of Biocemented Sand under Various Treatment Methods
Published 2022-01-01“…Biocementation mainly relies on the formation of calcium carbonate to bind soil particles. This paper investigates the effectiveness of biocementation in terms of treatment methods. …”
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7157
Study on the Permeability of Modified Bentonite Slurry in Landfill
Published 2020-01-01“…The optimal dosage of each component of slurry is 210∼220 kg/m3 cement, 210∼220 kg/m3 bentonite, 1.5∼2.5 kg/m3 sodium carbonate, 1.5∼2.0 kg/m3 sodium carboxymethyl cellulose, 160 kg/m3 fly ash, and 3 kg/m3 polycarboxylate superplasticizer. …”
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7158
Experimental Investigation of Strengthening Silt With the MICP Technique Combined With Cement
Published 2025-01-01“…In this research, the microbial-induced carbonate precipitation (MICP) technique combined with cement was proposed to improve the physical and mechanical properties of silt. …”
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7159
Nonlinear variational inequalities on reflexive Banach spaces and topological vector spaces
Published 2003-01-01“…The obtained results extend, improve, and unify the results due to Browder, Carbone, Siddiqi, Ansari, Kazmi, Verma, and others.…”
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7160
Dissolution of Different Reservoir Rocks by Organic Acids in Laboratory Simulations: Implications for the Effect of Alteration on Deep Reservoirs
Published 2021-01-01“…The volume increase in all three reservoir types is mainly attributed to the dissolution of carbonate minerals. In deep reservoirs, in situ generated organic acids can enlarge existing cavities in carbonates and develop microfissures in sandstones. …”
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