Results 191 to 200 of about 105,325 (306)

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

Deep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source

Advances in Rock and Mineral Materials. [PDF]

Materials (Basel)
Žibret G, Ducman V, Žibret L.
europepmc   +1 more source

Genetic Mineralogy [PDF]

, 2013
Savelieva, T.S., Stepanova, Olga, Tokar, L.O.   +2 more
core  

Intramolecular Matere Bonds in Isostructural Rubidium (18‐Crown‐6) Pertechnetate and Perrhenate Dimers

European Journal of Inorganic Chemistry, EarlyView.
Two rubidium cations that are not fully encapsulated by 18‐crown‐6 are bridged by two pertechnetate units to form a dimer. These two pertechnetate units are nearly linearly aligned to each other to form Matere bonds (MaBs), a type of noncovalent σ‐hole interaction.
Clarence Yong, Sergi Burguera, Dennis Grödler, Christoph Lenting, Hakim Ibrahim, Mathias S. Wickleder, Antonio Frontera, Erik Strub   +7 more
wiley   +1 more source

Rapid isotopic exchange in mineralogically unaltered coral skeletons. [PDF]

Sci Rep
Stolarski J, Cisneros-Lazaro D, Adams A, Janiszewska K, Meibom A.   +4 more
europepmc   +1 more source

Cost Analysis Insights for Offshore CCS Hubs: A Case Study of the Santos Basin, Brazil

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT The reuse of decommissioned offshore platforms for geological carbon storage offers a cost‐effective and technically feasible strategy to reduce greenhouse gas emissions in emerging economies. This study presents a comprehensive techno‐economic assessment of offshore carbon capture and storage (CCS) hubs in Brazil, with a focus on the Merluza ...
Norah A. Ordoñez, Mariana Ciotta, Hirdan Katarina de Medeiros Costa, Livia Koch Sposito, Daniel Alkmin   +4 more
wiley   +1 more source

Integration of SuperCam based chemical imaging and clustering to correlate geochemistry and mineralogy in heterogeneous samples. [PDF]

Sci Rep
García-Gómez L, Población I, Delgado T, Laserna J, Velásquez M, Porizka P, Buday J, Kaiser J, Lobato Á, Casado AI, Taravillo M, Madariaga JM, Aramendia J, Rull F, Carrizo D, Martínez-Frías J, Vadillo I, Vadillo JM, Fortes FJ, Cabalín LM.   +19 more
europepmc   +1 more source

A Reproducible SEM Surface Imaging Protocol for Monitoring Microstructural Changes During Gas–Rock Interactions

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Reliable characterization of mineralogical and textural changes in rock samples is essential for understanding fluid–rock interactions, particularly in experimental studies simulating subsurface conditions. This study presents a reproducible protocol for scanning electron microscopy (SEM) analysis of rock surfaces before and after exposure to ...
Berta Ordóñez‐Casado, Timea Kovács, Sara Roces, Edgar Berrezueta   +3 more
wiley   +1 more source

Assessment of Physical Properties and Potential Elemental Leaching from Bauxite Tailing-Based Alkali-Activated Materials. [PDF]

ACS Omega
Barreto IAR, da Costa ML.
europepmc   +1 more source

The Impact of Democratization and Globalization on Environmental Sustainability in Brazil

Geological Journal, EarlyView.
Fossil fuel, economic globalisation, and economic growth drive environmental degradation while democratisation positively influences environmental quality. ABSTRACT Although Brazil still possesses significant ecological reserves, the surplus in its biocapacity has been rapidly declining in recent years.
Mustafa Naimoğlu, Mehmet Metin Dam, Serdar Ongan, Andrew Adewale Alola   +3 more
wiley   +1 more source