Results 71 to 80 of about 1,688 (169)

Giant Porphyry Copper Deposits Caused by a Slab Jamming in the Mantle Transition Zone

open access: yesTerra Nova, Volume 38, Issue 2, Page 106-115, April 2026.
ABSTRACT Two giant porphyry copper deposits in the Southern Central Andes formed during the Miocene–Pliocene transition when a bend in the subducting Juan de Fernández hotspot chain jammed in the mantle transition zone, causing mega‐scale slab‐kinking. This geometry implies mechanical resistance that caused East–West compression and eventually a thrust‐
Nipaporn Nakrong   +5 more
wiley   +1 more source

Parameter Space Exploration of Low-to-moderate-temperature Hydrothermal Systems on Ocean Worlds Using a Monte Carlo Framework

open access: yesThe Planetary Science Journal
We explore the hydrogeologic and physical conditions necessary to sustain hydrothermal activity within the shallow subseafloors of ocean worlds, exploring wide ranges of multiple parameters using a Monte Carlo framework.
Ryunosuke Akiba, Andrew T. Fisher
doaj   +1 more source

Computationally simulating the hydrothermal mineralizing system involved in the Laochang Pb-Zn deposit, Gejiu ore district, Yunnan, China: an example of pore-fluid convection controlled mineralization

open access: yesFrontiers in Earth Science
The Laochang Pb-Zn deposit can be typically considered as a hydrothermal mineralizing deposit in the Gejiu ore district. Although extensive studies were conducted to understand the mineralizing system associated with the Laochang Pb-Zn deposit through ...
Gaozhi Liu   +3 more
doaj   +1 more source

Anatase TiO2 adsorption on 3-aminopropyltrimethoxysilane-modified Al or glass surfaces

open access: yesHeliyon, 2019
Herein, anatase titanium dioxide (TiO2) nanoparticles were prepared by boiling anatase TiO2 in water without using hydrothermal synthesis. This changed the particle diameter because boiling caused particle collision via convection.
Masayoshi Kaneko
doaj   +1 more source

Differing Controls on the Cycling of Neodymium in the Atlantic and the Pacific

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Neodymium (Nd) isotopes ratios are regarded as a key proxy for past ocean circulation despite unsettled debate on marine Nd cycle controls, which opposes a “top‐down” hypothesis (surface sources dominate) and a “bottom‐up” hypothesis (sedimentary sources dominate), each with important implications for Nd isotope proxy interpretation.
Paige M. Wise   +3 more
wiley   +1 more source

CVFEM for free convective heat transfer of CuO-water nanofluid in a tilted semi annulus

open access: yesAlexandria Engineering Journal, 2017
Influence of adding CuO nanoparticles in the base fluid on flow and heat transfer in an inclined half-annulus was studied considering constant heat flux as boundary condition of hot wall.
M. Sheikholeslami, D.D. Ganji
doaj   +1 more source

Electrospun Nanofibres for Load‐Bearing Composite Materials—A Review of Techniques, Mechanical Properties and Durability

open access: yesPolymer Composites, Volume 47, Issue 5, Page 3917-3945, 10 March 2026.
Electrospun nanofibre for load‐bearing composite materials. ABSTRACT Electrospun nanofibres are emerging nanomaterials prized for their scalability, high surface area to volume ratio and yield. Their effectiveness in improving the mechanical properties of fiber reinforced composites is widely reported. Nanofibres could activate multiscale toughness and
Usaid Ahmed Shakil, Petr Hájek
wiley   +1 more source

Fluid Chemical and Isotopic Signatures Insighting the Hydrothermal Control of the Wahongshan-Wenquan Fracture Zone (WWFZ), NE Tibetan Plateau

open access: yesEnergies
Compared to the southern Tibetan Plateau, the northern part has been regarded as relatively lacking geothermal resources. However, there is no lack of natural hot springs exposed in beads along large-scale fracture systems, and research on them is ...
Tingxin Li   +5 more
doaj   +1 more source

Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu   +3 more
wiley   +1 more source

Defect‐Free P2‐Type Layered KxMnO2 Cathode Material for Anode‐Free Potassium‐Ion Battery

open access: yesSmall Structures, Volume 7, Issue 3, March 2026.
A defect‐free P2‐type potassium manganese oxide cathode was synthesized via a rapid (≤2 h) microwave heating process with excellent structural integrity, fast K+ diffusion, and high reversibility for next‐generation anode‐free potassium‐ion batteries.
Xijue Wang   +6 more
wiley   +1 more source

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