Results 71 to 80 of about 290,425 (314)

Simulation of shale’s deformation and failure characteristics under triaxial compression considering mineral components

Journal of Petroleum Exploration and Production Technology
To advance the design and optimization of hydraulic fracturing technology in the efficient development of shale gas, it is crucial to reveal the mechanism by which mineral composition influences the mechanical properties of shale.
Bao Li, Yongjian Zhu, Yuexiang Hao, Yafei Luo, Sisi Tang, Xin’ao Zhang   +5 more
doaj   +1 more source

Efeitos da prática da GRD sobre a densidade mineral óssea em adolescentes pré-púberes [PDF]

, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.O objetivo do estudo foi analisar os efeitos da prática da GRD sobre a densidade mineral óssea em adolescentes pré ...
Segura, Dora de Castro Agulhon
core  

Weathering microenvironments on feldspar surfaces: implications for understanding fluid-mineral reactions in soils [PDF]

, 2008
The mechanisms by which coatings develop on weathered grain surfaces, and their potential impact on rates of fluid-mineral interaction, have been investigated by examining feldspars from a 1.1 ky old soil in the Glen Feshie chronosequence, Scottish ...
Smith, C.L., M. E. Hodson, Lee, M.R., Smith, C. L., C. L. Smith, Hodson, M.E., M. Mackenzie, MacKenzie, M., D. J. Brown, Lee, M. R., Brown, D. J., Hodson, M. E., Brown, D.J., M. R. Lee   +13 more
core   +1 more source

Spatially Decoupling Heating and Evaporation for Convection‐Enhanced 3D Solar Evaporation With Continuous Salt Harvesting

Advanced Functional Materials, EarlyView.
An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma, Yan Zhao, Yan Yan, Muhammad Amjad, Guice Yao, Hui Gao, Shudan Wei, Dongsheng Wen   +7 more
wiley   +1 more source

The Stoichiometry of Mineral Compositions

, 2011
Previous work by John Aitchison (1999) showed how log-ratio compositional data analysis can illuminate the relationships between components of a composition based on mineral constituents, However, his analysis was framed in terms of weight based compositional, so it did not illustrate directly the stoichometric relationships of the ...
Grunsky, E.C., Bacon Shone, J.
openaire   +2 more sources

Bioinspired Mechanically Robust Organic–Inorganic Hybridized Bio‐Adhesives With up to 50% Inorganic Components by Bi‐Continuous Phase Engineering

Advanced Functional Materials, EarlyView.
A robust plant protein adhesive was prepared by fabricating a bi‐continuous organic–inorganic hybrid structure. Compared with traditional organic–inorganic hybrid adhesives, the addition amount of inorganic phase is increased from 0.2%–3.0% to 50%, and the strength and toughness are increased by 6 and 121 times, respectively.
Zheng Liu, Wenlong Luo, Xu Yang, Xin Zhang, Yuru Zhu, Jingchao Li, Jianzhang Li, Jing Luo, Zhezhe Zhou, Pingan Song, Qiang Gao   +10 more
wiley   +1 more source

Quality of Organic Vegetables Grown in Two Certified Sites on the Outskirts of Bucharest Municipality

Present Environment and Sustainable Development, 2017
Soil fertility properties, irrigation water quality, mineral nutrition, and some vegetables mineral composition were studied in the frame of a project regarding yield quality monitoring in certified organic vegetable farms, in two farms placed on the ...
Lungu Mihaela, Ștefănescu Sorin Liviu, Dumitrașcu Monica   +2 more
doaj   +1 more source

Mineral composition of New Zealand monofloral honeys

, 2010
The objective of this study was to determine the mineral content in ten New Zealand monofloral honeys, in order to distinguish whether New Zealand monofloral honeys are a good source of minerals compared to honeys from other parts of the world.
Emmertz, Andrea
core  

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

Advanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo, Mingqi Xiao, Fangyuan Zhang, Hui Li, Yuli Jia, Zhenfang Zhang, Liqun Ye, Bo Yang, Tianyi Ma   +8 more
wiley   +1 more source

Expanded Insights into Martian Mineralogy: Updated Analysis of Gale Crater’s Mineral Composition via CheMin Crystal Chemical Investigations

This study presents mineral composition estimates of rock and sediment samples analyzed with the CheMin X-ray diffraction instrument on board the NASA Mars Science Laboratory rover, Curiosity, in Gale crater, Mars.
Michael T. Thorpe, Aditi Pandey, Nicholas Castle, Robert T. Downs, Thomas F. Bristow, David T. Vaniman, Ashwin R. Vasavada, Patricia I. Craig, Richard V. Morris, Albert S. Yen, Sarah L. Simpson, Shaunna M. Morrison, Steve J. Chipera, Johannes M. Meusburger, Benjamin M. Tutolo, David F. Blake, Philippe C. Sarrazin, Douglas W. Ming, Elizabeth B. Rampe, Allan H. Treiman, Anirudh Prabhu, Valerie Tu, Ahmed Eleish, Robert M. Hazen   +23 more
core   +1 more source