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181
Mechanical and Microstructural Properties of Bamboo Fiber-Reinforced Concrete Containing a Blend of Waste Marble Powder and Waste Glass Powder
Published 2023-01-01“…Moreover, scanning electron microscopy (SEM) showed a denser microstructure, whereas X-ray diffraction (XRD) illustrated portlandite, calcium aluminum silicate, quartz, and calcium silicate hydrate as common phases of the concrete structure. …”
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182
Machining Path Optimization of Inductively Coupled Plasma Based on Surface Heat Transfer Model
Published 2025-01-01“…Inductively coupled plasma (ICP), a non-contact optical processing method, has been widely used in the preparation of fused quartz. However, the thermal effect during processing inevitably affects the stability of the removal rate, reduces the processing accuracy, and restricts the further development of plasma processing. …”
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183
Silica Induces Changes in Cytosolic Free Calcium, Cytosolic pH, and Plasma Membrane Potential in Bovine Alveolar Macrophages
Published 1997-01-01“…Short‐term incubation (10 min) of BAM with silica gel and quartz dust particles induced increases in the cytosolic free calcium concentration ([Ca2+]i), decreases in intracellular pH (pHi), and increases in plasma membrane potential (PMP). …”
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184
Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis
Published 2025-01-01“…Employing low-volume air samplers with Quartz filters and subsequent analysis with an Aethalometer (Soot scanner, OT21, USA), the study unveiled monthly average BC densities of 1.64 μg cm−2, concentrations of 4.99 μg m−3, and emissions of 0.038 μg J−1. …”
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185
Contribution of Surface Treatment on Physical and Mechanical Properties of Recycled Concrete Aggregates
Published 2022-01-01“…XRD showed that calcite (CaCO₃), quartz, and portlandite phases were the majority in the untreated RCA. …”
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186
Micro-Characterization of Indoor Deposited Particles Using FTIR, SEM-EDS, and XRD Techniques: A Case Study of a University Campus, Bangladesh
Published 2024-03-01“…The average crystallinity of studied atmospheric particles was found to be a minimum of 27.3% at RH and a maximum of 64.5% at NAB sites and the corresponding crystalline size was 11.10 nm and 42.92 nm respectively. Quartz mineral in the inorganic fraction of atmospheric particles was found predominantly in every sample which most likely originates from soil erosion, construction activities and vehicular emissions. …”
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187
Wind Tunnel Tests of Wind-Induced Snow Distribution for Cubes with Holes
Published 2019-01-01“…Therefore, a wind tunnel simulation was performed, in which quartz particles with an average particle size of 0.14 mm as snow particles were used, and cubes with dimensions of 100 mm × 100 mm × 100 mm each containing a hole with the size of 20 mm × 20 mm were employed as structures. …”
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188
MINERALOGICAL AND GEOCHEMICAL FEATURES OF HEAVY CONCENTRATES FROM CREEKS OF THE NORTHWESTERN END OF THE OKHOTSK TERRANE (KHABAROVSK KRAI)
Published 2023-12-01“…Native gold grains in placers are yellow, small, mostly weak and medium-rounded, often with inclusions of quartz, feldspar, pyrite, iron oxides and hydroxides, and zircon. …”
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189
Processes Governing Alkaline Groundwater Chemistry within a Fractured Rock (Ophiolitic Mélange) Aquifer Underlying a Seasonally Inhabited Headwater Area in the Aladağlar Range (Ada...
Published 2017-01-01“…Results from the PHREEQC modeling suggested that hydrogeochemical evolution is governed by weathering of primary minerals (calcite, chrysotile, forsterite, and chromite), precipitation of secondary minerals (dolomite, quartz, clinochlore, and Fe/Cr oxides), atmospheric/anthropogenic inputs (halite), and seasonal dilution from recharge.…”
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190
Feasibility of nickel extraction from Indian chromite overburden by solid state reduction and smelting route
Published 2020-01-01“…The present work demonstrates the extraction of nickel from low-grade chromite overburden by using solid state reduction and direct smelting route. Goethite & Quartz are present as major phases whereas chromite, hematite were identified as minor phases in the mineral. …”
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191
Reconstructing Paleofluid Circulation at the Hercynian Basement/Mesozoic Sedimentary Cover Interface in the Upper Rhine Graben
Published 2019-01-01“…We distinguished at least four stages: (1) reactivation of Hercynian structures associated with pre-rift tectonics during the early Eocene and descending meteoric waters, characterized by shearing/cataclasis textures and precipitation of illite and microquartz; (2) initiation of convective circulation of deep hot brines mixed with descending meteoric waters at the Hercynian basement/sedimentary cover interface during this first stage of Eocene rifting, characterized by dolomite and barite fillings in reactivated Hercynian fractures; (3) N-S tension fractures associated with rift tectonics just prior to uplift of the graben shoulders during Oligocene extension and descending meteoric waters, characterized by cataclastic textures and precipitation of quartz, illite, hematite, and barite; and (4) current convective circulation of deep hot brines mixed with descending meteoric waters at the Hercynian basement/sedimentary cover interface, characterized by calcite and barite fillings within the graben. …”
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192
An assessment of the pozzolanic potential and mechanical properties of Nigerian calcined clays for sustainable ternary cement blends
Published 2024-12-01“…XRD analysis identified kaolinite and quartz as major mineral phases in the raw clays, which transformed into metakaolin upon calcination. …”
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193
Leaching of hemimorphite in neutral solution at high temperature
Published 2020-01-01“…The silicon was converted to quartz and remained in the residue. This process can be used to dispose willemite and hemimorphite as it solves the problem of silica gel dehydration.…”
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194
MINERAL FORMS OF TUNGSTEN AT THE POROKHOVSKOE AND YUGO-KONEVSKOE DEPOSITS (SOUTH URALS)
Published 2025-01-01“…The veins are mainly composed of quartz and muscovite with subordinate calcite, dolomite and fluorite, rare chlorite and amphibole and accessory zircon, apatite and uraninite. …”
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195
Fresh, Mechanical, and Microstructural Properties Investigation on the Combined Effect of Biomedical Waste Incinerator Ash and Bagasse Ash for High-Strength Concrete
Published 2022-01-01“…The XRD pattern showed the existence of portlandite, ettringite, okenite, quartz, and calcite in the cement and aggregate phases. …”
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196
Mechanical Behavior of High-Strength Bolted Joints Fabricated from Fire-Resistant Steel at Elevated Temperatures
Published 2022-01-01“…The experimental results show that the treatment of the friction surface (specifically, impeller blasting and sprayed hard quartz sand) has a negligible effect on the ultimate strength of specimens and a relatively significant effect on the slip strength. …”
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197
Bottom-up fabrication of 2D Rydberg exciton arrays in cuprous oxide
Published 2025-01-01“…We observed Rydberg excitons up to the principal quantum number n = 5 within these Cu2O arrays on a quartz substrate and analyzed the spatial variation of their spectrum across the array, showing robustness and reproducibility on a large chip. …”
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198
X-ray diffraction and SEM/EDX studies on technological evolution of the oxide-fluoride ceramic flux for submerged arc-surfacing
Published 2012-01-01“…identified α- phase of quartz, Al2O3, MgO and CaF2 of the initial components in the samples taken after granulation and subsequent annealing at 600 °C. …”
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199
Characterization of Ghanaian clays as raw materials for the synthesis of ZSM-5 zeolite
Published 2025-03-01“…All four clay samples contained kaolinite and quartz in addition to other clay minerals. Notably, the pre-treatment processes were key in acquiring the ZSM-5 product. …”
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200
Assessment of water and ion content in particulate matter: Comparison of two methods for determining particulate mass on a filter
Published 2025-01-01“…The second method involved direct gravimetric analysis, weighing successive filter subsections (each covering 1/10 of the total area) to quantify solid particles, water, and ions. Six Whatman™ quartz filters (Ø15 cm) exposed to PM1 and PM2.5 fractions were analyzed. …”
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