Quantitative characterization of the multiscale mechanical properties of low-permeability sandstone roofs of coal seams based on nanoindentation and triaxial tests and its implicat... by Feng Cao, Jianhua He, Hongxiu Cao, Hucheng Deng, Andrew D. La Croix, Rui Jiang, Ruixue Li, Jiarun Li

“…Compared to polycrystalline quartz, monocrystalline quartz has a more stable microstructure and is mechanically stronger. …”
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DESIGN OF ELASTIC RING CLAMPING STRUCTURE FOR PIEZOELECTRIC BENDING EFFECT by GAO ChangYin, WU XiaoLing

“…In order to verify the bending effect of quartz wafer,a special elastic ring clamping structure was designed to install and position the sensitive element. …”
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MINERAL COMPOSITION OF HEAVY CONCENTRATES OF THE KAMENNAYA SANARKA GOLD PLACER (SOUTH URALS) by D.A. Rogov, M.A. Rassomakhin

“…On the basis of morphological and chemical features, native gold could probably be sourced from gold-(sulfide)-quartz veins in schists and gneisses, which compose the bedrock, as well as from quartz veins of the Kamennaya Sanarka granite pluton.…”
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Fluid Inclusion and H–O–S–Pb Isotope Geochemistry of the Yuka Orogenic Gold Deposit, Northern Qaidam, China by Pengjie Cai, Rongke Xu, Youye Zheng, Yueming Yin, Xin Chen, Xianbin Fan, Chao Ma

“…The Yuka mineralization can be divided into three stages: early quartz-pyrite (stage-I), middle quartz-gold-polymetallic sulfide (stage-II), and late quartz-carbonate (stage-III). …”
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Damage Simulation of a Random Aggregate Model Induced by Microwave under Different Discontinuous Ratios and Exposure Times by Yang Tang, Guobin Xu, Chunlai Qu, Liying Sun, Yu Duan

“…A random aggregate algorithmic method and a numerical model for two-phase materials (composed of quartz and plagioclase) with different discontinuous ratios and irradiation times were studied based on the discrete element method using two-dimensional particle flow code (PFC2D). …”
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Whole-rock geochemistry and crystal chemistry of apatite at intrusive suites of the Qeynarjeh-Angouran district (west of Zanjan): an approach to the identification of skarn-causati... by Afsoon Dastour, Ebrahim Tale Fazel, Ashraf Torkian

“…In this area, intrusive suites of Middle Triassic-Upper Jurassic age are exposed, including the Gharavol-Khane quartz diorite, the Kuh-e Belghais granite porphyry, and the Qeynarjeh granodiorites. …”
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Study on the Adsorption Mechanism of Hydrophobic SiO2 Nanoparticles: A Molecular Dynamics Study by Runnan Zhou, Yuyuan Wang, Dong Zhang, Peng Ye, Jianguang Wei

“…The simulation results show that water molecules could form two adsorption layers on both quartz and kaolinite surfaces. Hydration layer thickness of kaolinite is greater than that of the quartz surface. …”
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MINERALOGY AND ORE FORMATION CONDITIONS OF THE NAILY GOLD DEPOSIT (SOUTH URALS) by A.D. Smirnitskaya, E.A. Rozhkova, E.V. Belogub, K.A. Novoselov, M.V. Zabotina, M.A. Rassomakhin

“…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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Crystal structure modulating performances for 213-nm GeO2 solar-blind photodetectors via DC reactive magnetron sputtering method by Chengming Wei, Jiabao Liu, Xinru Lan, Cheng Yang, Shuiping Huang, Dongdong Meng, Zhengwei Chen, Hongguang Duan, Xu Wang

“…Here, we have fabricated quartz and rutile-GeO2 thin films utilizing the magnetron sputtering based synthetic strategy, which exhibit ultra-wide bandgap energies of 5.51 and 5.88 eV. …”
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Effective Stress Factor Analysis of Proppant for Multi-stage Fracturing in Horizontal Wells by Bo Cai, Rui Gao, Chunming He, Jin Chen, Ning Cheng, Tiancheng Liang, Guifu Duan, Chuanyou Meng, Haifeng Fu, Haoyu Zhang

“…Based on the above conclusions, the field test of replacing ceramsite proppant with quartz sand was carried out. The proportion of quartz sand increased from less than 30% in 2014 to 69% in 2019. …”
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Geology, Fluid Inclusion, and H–O–S–Pb Isotope Constraints on the Mineralization of the Xiejiagou Gold Deposit in the Jiaodong Peninsula by Peng Chai, Zeng-qian Hou, Hong-rui Zhang, Lei-lei Dong

“…Three stages of mineralization were identified with the early stage being represented by (K-feldspar) sericite quartz pyrite, the middle stage by quartz gold polymetallic sulfide, and the late stage by quartz carbonate. …”
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Quantification of the Transparency of the Transparent Soil in Geotechnical Modeling by Li-Da Yi, Hua-Bin Lv, Tian Ye, Yi-Ping Zhang

“…Specifically, transparent soil with fused quartz serves as the soil sample for the detection of transmittance, and transmittance’s impact on imaging quality in geotechnical modeling with transparent soil is investigated through an evaluation function of image clarity. …”
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Study on the Proportion of Conglomerate Similar Materials Based on the Orthogonal Test by Mengze Yang, Yu Yang, Bo Zhao

“…The three control factors are cement-to-water ratio, cement-to-sand ratio, and quartz sand particle size, and orthogonal tests are set at four levels. …”
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Micropore Characteristics and Gas-Bearing Characteristics of Marine-Continental Transitional Shale Reservoirs in the East Margin of Ordos Basin by Yuanzhen Ma, Meng Wang, Ruying Ma, Jiamin Li, Asiya Bake, Yadi Shan

“…The results showed that the pore volume and specific surface area were positively correlated with clay mineral content, TOC, and RO, but negatively correlated with the quartz content. In clay minerals and brittle minerals, pore volume and specific surface area are positively correlated with illite content and negatively correlated with the quartz and kaolinite content. …”
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The Metallogeny of the Tieling Cu-Mo Porphyry Deposit in Eastern Tianshan, NW China: New Insights from Zircon U-Pb, Fluid Inclusion, and H-O-S Stable Isotope Analyses by Ping Li, Ting Liang, Fan Huang, Tongyang Zhao, Zhixin Zhu, Yong Li, Jing Feng, Lei He

“…Three stages of hydrothermal mineralization were identified, including quartz+K-feldspar+pyrite±molybdenite±magnetite (stage I), quartz+molybdenite+pyrite+chalcopyrite (stage II), and quartz+pyrite±molybdenite±epidote (stage III). …”
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BISMUTH MINERALS FROM YUGO-KONEVO AND POROKHOVSKOE TUNGSTEN DEPOSITS (SOUTH URALS) by A.V. Kasatkin, E.V. Belogub, A.M. Kuznetsov, K.A.Novoselov, R. Škoda, F. Nestola, D.A. Rogov

“…The Bi minerals occur as individual grains or intergrowths in fluorite-muscovite-quartz veins with hübnerite and scheelite , inclusions in quartz and intersticial aggregates between pyrite, sphalerite and galena. …”
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Experimental and numerical studies on scaling and thermal conductivity of backward step ethanol fueled micro-combustor by Vinay Sankar, Ratna Kishore Velamati, Sudipto Mukhopadhyay

“…The combustors were made of quartz, stainless steel, and aluminium, each with a thermal conductivity that differed by order of magnitude. …”
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The thermal damaging process of diorite under microwave irradiation by Xirui Lu, Chen Yuan, Zeng Junsen, Hu Qijun, Shao Dadong, Zhang Haibin, Lu Xirui

“…The experimental results show that the rocks started to crack at 500 ℃ and completely disintegrated at 700 ℃. The intensities of quartz diffraction peaks were almost unchanged while the diffraction peak intensity of hornblende gradually decreased with temperature increasing. …”
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Industry 4.0: digital twins characteristics, applications, and challenges in-built environments by Heni Zribi, Taycir Ben Abid, Abdelkarim Elloumi, Yasmina Hani, Besma Bechir Graba, Aderrahman Elmhamedi

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Fluid Inclusion and Oxygen Isotope Constraints on the Origin and Hydrothermal Evolution of the Haisugou Porphyry Mo Deposit in the Northern Xilamulun District, NE China by Qihai Shu, Yong Lai

“…The positive correlations between the homogenization temperatures and the salinities of the fluids and the low oxygen isotopic compositions (δ18Ofluid < 3‰) of the syn- to postmineralization quartz together suggest the mixing of magmatic fluids with meteoric water, which dominated the whole mineralization process. …”
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