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7261
Litostratigrafia spodnotriasových súvrství Západných Karpát
Published 2024-11-01“…The overlying part of the Lúžňa Formation with a transition to the Middle Triassic carbonate platform, as well as the transitions from Permian sedimentary sequences to the Lúžňa Formation, have not been systematically subjected to detailed study. …”
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7262
Microstructure and Properties of Polyhydroxybutyrate-Chitosan-Nanohydroxyapatite Composite Scaffolds
Published 2012-01-01“…Polyhydroxybutyrate-chitosan-hydroxyapatite (PHB-CHT-HAP) composite scaffolds were prepared by the precipitation of biopolymer-nanohydroxyapatite suspensions and following lyophilisation. The propylene carbonate and acetic acid were used as the polyhydroxybutyrate and chitosan solvents, respectively. …”
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7263
Diet in the Management of Functional Dyspepsia: Controversial and Unresolved Issues
Published 2023-09-01“…Many studies have shown that spicy food, food with a high content of saturated fats, coffee, carbonated drinks can lead to symptoms of FD. Intolerance to certain foods (in particular, wheat) may be associated with their ability to act as allergens. …”
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7264
NONCONVENTIONAL TECHNIQUE FOR PRODUCING HIGH MECHANICAL STRENGTH GLASS FOAM FROM GLASS WASTE
Published 2019-06-01“…By replacing the usual conventional energy source with a nonconventional energy (electromagnetic waves) the heating efficiency allows a fast and economical manufacturing process. Calcium carbonate as a foaming agent and an addition of sodium silicate (aqueous solution) as a binder were used. …”
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7265
Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation
Published 2016-01-01“…Furthermore, the behaviors of measured EM property are investigated with carbonation velocity and strength, which shows an attempt of application to durability evaluation through EM measurement.…”
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7266
Clean Procedure and DFT Study for the Synthesis of 2-Amino-3-ethoxycarbonyl-4-(aryl)-4H-pyrano-[3,2-c]-chromene-5-ones Derivatives: A Novel Class of Potential Antimicrobial and An...
Published 2013-01-01“…The structures of the obtained compounds are confirmed by analytical IR, 1H, and 13C-NMR spectra to elucidate the different positions of protons and carbons and as well as theoretic studies (DFT/B3LYP). …”
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7267
DENSE GLASS FOAM PRODUCED IN MICROWAVE FIELD
Published 2018-03-01“…The glass foam is produced from bottle glass waste, calcium carbonate as foaming agent and borax as fluxing agent. …”
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7268
Synthesis of Benzofuran Derivatives and their Evaluation of Antimicrobial Activity
Published 2010-01-01“…2-Acetyl benzofuran (1) was synthesized by refluxing salicylaldehyde and dry chloroacetone in presence of potassium carbonate. The product formed was reacted with 2-aminobenzothiazole with catalyst p-toluene sulphonic acid to form N-[(1Z)-1-(benzofuran-2-yl)ethylidene]1,3-benzothiazol-2-amine (2). …”
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7269
Synthesis of micropaleontological age constraints for the reconstruction of the Tethyan realm in the Lesser Caucasus (Armenia, Karabagh)
Published 2023-04-01“…The radiolarian results also indicate that blocks of shallow-water carbonates slid into the basin during this time interval. …”
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7270
Autogenous Deformation of Alkali-Activated Blast Furnace Slag Concrete Subjected to Variable Curing Temperatures
Published 2019-01-01“…Sodium silicate and sodium carbonate were used as alkali activators. The obtained results showed development of deformations consisting of both shrinkage and expansion. …”
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7271
Modelling the Adsorption of -Nitrophenol by the Boyd Method in Conjunction with the Finite Element Method
Published 2010-11-01“…In this work, the adsorption kinetics of p -nitrophenol onto two commercial activated carbons with different textural and geometrical characteristics was studied. …”
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7272
Fractionation of Rare Earth Elements in Greisen and Hydrothermal Veins Related to A-Type Magmatism
Published 2019-01-01“…REE-fractionation patterns and fluid-inclusion data suggest that chloride complexation dominated REE transport during greisenization, whereas carbonate complexation contributed to the HREE enrichment in vein calcite.…”
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7273
Development of a novel and efficient method for synthesizing N-benzyl-substituted di-benzimidazole derivatives
Published 2025-01-01“…The intermediate dibenzimidazole derivatives (3) were further reacted with a variety of aromatic benzyl bromides or chlorides with different substituents (4) in the presence of potassium carbonate and acetonitrile at room temperature. This conventional approach resulted in the efficient production of the target compounds with high yields in a short reaction time. …”
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7274
A Case of Hydrocele Stone with Its Composition Analysis
Published 2010-01-01“…Crystallographical analysis of the hydrocele stone by a infrared spectrophotometer showed that the center was composed of 64% calcium carbonate and 36% calcium phosphate, while the outer portion was protein. …”
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7275
Assessing environmental impacts in batik production through life cycle assessment
Published 2024-01-01“…This impact is primarily attributed to the use of chemicals such as sulfuric acid, sodium hydroxide, and sodium carbonate, which dissolve in large quantities of water, leading to marine ecosystem pollution. …”
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7276
Spectrphotometric Determination of Buclizine as Hydrochloride Using Various Chromogenic Reagents
Published 2010-01-01“…Method A involves the precipitation, charge transfer complex formation of BUCZ with tannic acid/ p-N-methyl aminophenol sulphate (PMAP)-Cr(VI), the complex formation with cobalt thiocyanate (CTC) in method B and inner complex formation of BUCZ with sodium nitroprusside hydroxylamine hydrochloride and sodium carbonate in method C were proposed. The optical characteristics such as Beers law limits, molar absorptivity and Sandell’s sensitivity for the methods (A-C) are given. …”
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7277
A Novel Method to Prepare PolyGMA and its Application to Immobilization of β-Galactosidase
Published 2009-01-01“…The reactive, macroporous and massive epoxy group containing polyGMA was synthesized simultaneously with methanol aqueous solution and nano-calcium carbonate as porogen by bulk copolymerization. After the polymer was smashed, particles with diameters in the range of 0.30 to 0.45 mm were taken as the carrier and the scanning electron microscopy (SEM) micrographs were done to characterize its surface structure. …”
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7278
The Partisan Glade Geosite (Western Greater Caucasus) as an Important Resource and Rising Tourist Attraction
Published 2024-04-01“…This geosite represents Lower–Middle Jurassic deep-marine siliciclastics, and it shows Upper Jurassic carbonates, unusual landforms, landslides, and tectonic structures. …”
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7279
Status and Causes of Soil Salinization of Irrigated Agricultural Lands in Southern Baja California, Mexico
Published 2011-01-01“…Low EC and high pH levels were observed in the profiles of sandy fields, because the salt composition of these soils can easily change when salts are leached by irrigation water that contains carbonates of sodium. On the other hand, high levels of salinity and sodicity were observed in the soils of clayey fields. …”
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7280
Application of Electrical Resistivity Tomography Technique for Characterizing Leakage Problem in Abu Baara Earth Dam, Syria
Published 2014-01-01“…Several subsurface structural anomalies were identified within the fractured bedrock, most of which are associated with probable karstic cavities, voids, and discontinuity features developed within the carbonates rocks. Moreover, results also showed the occurrence of a distinguished subsiding structure coinciding with main valley course. …”
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