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2241
Diagenetic Fluid and Its Impact on Sandstone Reservoirs in the Southern Boxing Sag, Dongying Depression, Bohai Bay Basin, China
Published 2022-01-01“…Quartz overgrowths contain higher amounts of CaO and Al2O3 than detrital quartz. This indicates that the siliceous fluid mainly originates from the dissolution of feldspar. …”
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2242
MINERAL FORMATION CONDITIONS IN ACID MAGMATIC SYSTEMS RELATED TO THE FORMATION OF MASSIVE SULFIDE DEPOSITS OF THE URALS AND ALTAI-SAYANY AREA
Published 2021-12-01“…The magmas are characterized by the same type evolution with a decreasing content of main oxides (TiO2 , Al2 O3 , FeO, MgO, CaO, Na2 O, K2 O) and an increasing SiO2 content. …”
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2243
Heavy Oil Residue Upgrading With Iron Based Catalysts Under High Hydrogen Pressure
Published 2021-12-01“…FeSO4.H2O, the binary mixtures of FeSO4.H2O with metal oxides (Fe2O3, Al2O3, CaO, SiO2) and the mixtures Fe2O3, Al2O3 and SiO2 with elementary sulphur were used as catalyst. …”
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2244
Effect of Weathering on Cd Mobilization in Different Sedimentary Bedrock Soils
Published 2025-01-01“…The results of major element oxides (K<sub>2</sub>O, MgO, Na<sub>2</sub>O, Fe<sub>2</sub>O<sub>3</sub>, and CaO) imply that Cd in soil primarily stems from the weathering of bedrocks. …”
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2245
DIỄN VĂN KỶ NIỆM 40 NĂM GIẢI PHÓNG HOÀN TOÀN MIỀN NAM, THỐNG NHẤT TỔ QUỐC
Published 2015-09-01“…Đó còn là niềm kiêu hãnh, tự hào của tất cả các dân tộc đã và đang đấu tranh cho độc lập, tự do và cho những giá trị cao đẹp của loài người. Kỷ niệm 40 năm ngày giải phóng hoàn toàn miền Nam, thống nhất Tổ quốc là dịp để cùng nhau ôn lại những trang sử hào hùng của cuộc kháng chiến chống Mỹ cứu nước, suy ngẫm về ý nghĩa lịch sử, nguyên nhân thắng lợi và những bài học kinh nghiệm quý báu của cuộc trường chinh vệ quốc vĩ đại, phát huy những giá trị của nó trong công cuộc xây dựng và bảo vệ tổ quốc hôm nay, từng bước đưa Việt Nam sánh vai cùng các cường quốc trên thế giới.…”
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2246
A New Artificial Neural Network Model for the Prediction of the Effect of Molar Ratios on Compressive Strength of Fly Ash-Slag Geopolymer Mortar
Published 2021-01-01“…The percentages of Na2O and SiO2 of the source materials were observed as the dominant chemical compounds in the mix affecting the compressive strength. The influence of CaO was significant when combined with a high amount of SiO2 in alkaline solution.…”
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2247
Traffic Status Prediction of Arterial Roads Based on the Deep Recurrent Q-Learning
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2248
Potential use of the Maroua (Far North, Cameroon) river sand as construction materials and degreasing agent for earthenware ceramics
Published 2025-01-01“…The most abundant oxides in the five samples are SiO2, Al2O3, and K2O, while Fe2O3, MgO, TiO2, and P2O5 are in small amounts except for CaO and Na2O which are present in high amounts in NS1, and NS2 samples. …”
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2249
Synergistic Chemical Modification and Physical Adsorption for the Efficient Curing of Soluble Phosphorus/Fluorine in Phosphogypsum
Published 2025-01-01“…This study explores a dual approach combining physical adsorption using zeolite powder and chemical modification with quicklime (CaO) to immobilize these impurities. The composition of 90 wt.% PG, 5 wt.% zeolite powder, and 5 wt.% quicklime reduces the soluble phosphorus to below the detection limits and significantly lowers the free water content in the PG. …”
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2250
High Strength Anhydrite Cement Based on Lime Mud From Water Treatment Process: One Step Synthesis in Water Environment, Characterization and Technological Parameters
Published 2025-01-01“…ABSTRACT In the process of water treatment from surface water sources, lime mud as waste is formed. This waste contains CaO, Ca(OH)2, and CaCO3. The article proposes a comprehensive method for processing lime mud into high‐strength anhydrite cement. …”
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2251
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2252
Prospects for the use of ferrites with high magnetic permeability and permittivity as radio-absorbing materials
Published 2020-12-01“…Alloying ferrites with oxides TiO2, Bi2O3, CaO in an amount of up to 1 wt.% allows increasing the electrical resistance and dielectric constant of grain-boundary layers, providing an increase in the dielectric constant of ferrite as a whole. …”
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2253
An In Vitro Study of the Effects of Methotrexate Loaded Biocomposite Beads on MG63 Osteoblast Cells
Published 2025-01-01“…Methotrexate /Bioglass-loaded Polyvinyl/Cellulose/Sodium alginate biocomposite beads were prepared via the dropwise method with different concentrations of (65%SiO2-30%CaO- 5%P2O5) bioglass. Samples were named B0, S0, S1, S2, and S3, respectively. …”
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2254
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2255
Multianalysis Characterization of Mineralogical Properties of Copper-Lead-Zinc Mixed Ores and Implications for Comprehensive Recovery
Published 2020-01-01“…The gangue mainly contained SiO2, CaO, and Al2O3. Copper in the raw ore mainly existed in bornite, duftite, chalcopyrite, and chrysocolla; lead mainly existed in cerussite, duftite, and galena; zinc mainly existed in willemite, hemimorphite, and sphalerite. …”
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2256
Study on the synergistic hydration mechanism of granulated blast furnace slag-carbide slag-based cementitious materials and the properties of full-solid waste backfill materials
Published 2025-01-01“…The results indicate that when the molar ratio of n(CaO)/n(SiO2 + Al2O3) is 0.635 in GCCM, CS has a significant alkaline excitation effect on GS. …”
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2257
Enhanced corrosion resistance of AM60 alloy with 2.0Ca via thermal oxidation and carbonization under an O₂/CO₂ atmosphere
Published 2025-03-01“…This enhancement is attributed to the formation of a high-quality dual-layer protective structure, consisting of an outer MgCO₃/CaCO₃ composite layer and an inner MgO/CaO/Al₂O₃ composite layer. This protective film effectively mitigates micro-galvanic corrosion and provides resistance against Cl⁻ attack, contributing to the alloy's superior corrosion performance.…”
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2258
Enhanced MICP for Soil Improvement and Heavy Metal Remediation: Insights from Landfill Leachate-Derived Ureolytic Bacterial Consortium
Published 2025-01-01“…DSC analysis revealed endothermic and exothermic peaks, including a significant exothermic peak at 444 °C, corresponding to the thermal decomposition of CaCO<sub>3</sub> into CO<sub>2</sub> and CaO, confirming calcite formation. TGA results showed steady weight loss, consistent with the breakdown of CaCO<sub>3</sub>, supporting the formation of stable carbonates. …”
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2259
Vicarious trauma, coping strategies and nurses' health outcomes: An exploratory study
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2260
A remarkable permeability enhancement of Ni1−xZnxFe2O4 (x = 0.65 and 0.70), using a multi-compound calcined additive
Published 2024-06-01“…Also an equiponderant calcined mixture of Bi2O3, CaO, CeO2, SiO2, Al2O3, Y2O3 and nanotitania was mixed thoroughly and used as a multi-compound calcined additive (MCCA). …”
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