Results 71 to 80 of about 31,093 (293)

Gold Sterile Ore Acid Generation Evaluation, San Juan Argentina [PDF]

, 2014
One of the problems that mining represents in relation to the natural watercourses is the possible formation of what we call acid mine drainage, which consists in the emission or formation of water effluents of great acidity, usually rich in sulfate and ...
Bazan Brizuela, Vanesa Lucia, Brandaleze, Elena, Sarquis, Pedro Edgardo   +2 more
core   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Distribution and forms of manganese in vertisols of Serbia [PDF]

Journal of the Serbian Chemical Society, 2011
Soil samples taken from the Ap horizont of arable land and meadows at ten different localities were analyzed for different forms of manganese, including total (HF), pseudo-total (HNO3), 0.1 M HCl-extractable and DTPA-extractable.
JELENA Ž. MILIVOJEVIĆ, IVICA G. ĐALOVIĆ, MIODRAG Ž. JELIĆ, SREĆKO R. TRIFUNOVIĆ, DARINKA M. BOGDANOVIĆ, DRAGIŠA S. MILOŠEV, BRANISLAV D. NEDELJKOVIĆ, DRAGANA Đ. BJELIĆ   +7 more
doaj  

Multi-metal contamination of a calcic cambisol by fallout from a lead-recycling plant [PDF]

, 2008
The present study deals with the impact of a lead-recycling plant on metal accumulation in soils, evaluated by a global pedological analysis. This general approach can be used on various contaminated sites to evaluate impact of an anthropogenic activity ...
Alric, Alain, Cecchi, Marie, Dumat, Camille, Felix-Faure, B., Guiresse, Agnès Maritchù, Pradère, Philippe   +5 more
core   +1 more source

Integrating Automated Electrochemistry and High‐Throughput Characterization with Machine Learning to Explore Si─Ge─Sn Thin‐Film Lithium Battery Anodes

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
A closed‐loop, data‐driven approach facilitates the exploration of high‐performance Si─Ge─Sn alloys as promising fast‐charging battery anodes. Autonomous electrochemical experimentation using a scanning droplet cell is combined with real‐time optimization to efficiently navigate composition space.
Alexey Sanin, Jackson K. Flowers, Tobias H. Piotrowiak, Frederic Felsen, Leon Merker, Alfred Ludwig, Dominic Bresser, Helge Sören Stein   +7 more
wiley   +1 more source

Degradation Pathways of Silicon‐Based Anodes in Lithium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Silicon‐based anodes undergo degradation through five primary pathways: (1) mechanical and structural deterioration of the active material, (2) loss of electrode integrity and electrical contact, (3) mechanical instability of the solid electrolyte interphase (SEI), characterized by repetitive fracture and deformation, (4) chemical instability of the ...
Yoon Jeong Choi, Ji‐Youn Bae, Ga‐On Park, Seung‐Ho Yu   +3 more
wiley   +1 more source

Natural Aging of Biomaterials in Ambient and Physiological Environments

Advanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

The influence of technological factors on the properties of reaction powder concretes based on alkali-activated slag portland cement

Будівельні конструкції: Теорія і практика
The development of reactive powder concrete (RPC) based on Portland cements containing varying amounts of granulated blast furnace slag and activated with soluble sodium silicates is of global importance in terms of protecting critical infrastructure.
Андрій Разсамакін
doaj   +1 more source

Injectable Bone Cements: A Generational Framework for Bioactivity, Porosity, and Mechanobiological Design at the Nanoscale

Advanced NanoBiomed Research, EarlyView.
Key demographic, biological, and material considerations that drive the need for advanced injectable bone cement technologies. Injectable bone cements (IBCs) are widely used in orthopaedic and craniofacial applications due to their minimally invasive delivery and ability to provide early mechanical stabilisation.
Frank Fei, Yogambha Ramaswamy, Young Jung No   +2 more
wiley   +1 more source

Geochemical potentiality of glauconitic shelf sediments for sequestering atmospheric CO2 of anthropogenic origin

Ciencias Marinas, 2005
An experimental analysis was made of the glauconite dissolution rate as a function of pH. The results were used to model the geochemical evolution of glauconitic shelf sediments injected with CO2 and estimate the possibilities and limitations for ...
S Fernández-Bastero, T García, A Santos, Luis Gago-Dupont   +3 more
doaj   +1 more source