Results 41 to 50 of about 1,224,330 (199)

Factors affecting heavy metals accumulation in potato tubers / Czynniki wpływające na akumulację metali ciężkich w bulwach ziemniaka

open access: yesEnvironmental Protection and Natural Resources, 2015
Badano wpływ wybranych czynników agrochemicznych na akumulację metali ciężkich w bulwach ziemniaka. Gleby uprawne mogą być zanieczyszczone metalami ciężkimi.
Musilova Janette   +4 more
doaj   +1 more source

Ni‐Based Catalysts for 5‐Hydroxymethylfurfural Electrooxidation Coupled with Hydrogen Production

open access: yesChemElectroChem, Volume 12, Issue 13, July 3, 2025.
The co‐electrolysis of H2O and 5‐hydroxymethylfurfural (HMF) using Ni‐based catalysts, under alkaline conditions, co‐produces low‐carbon hydrogen and furandicarboxylic acid. This review delves into the electrooxidation mechanism of HMF electrooxidation, presents recent advancements in the performance of Ni‐based catalysts and highlights the effects of ...
Itzcóatl Rafael Garduño‐Ibarra   +6 more
wiley   +1 more source

Surface Properties of p‐GaN and Formation of Nickel Metal Contacts

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 13, July 14, 2025.
The amount of C, O, and Mg–O bonds on the surface of p‐GaN can be reduced while still maintaining the surface morphology by potassium hydroxide (KOH) wet chemical treatment. Heating this surface with Ni on top in ultra‐high vacuum (UHV) results in a crystalline Ga‐Ni alloy and diffusion of Ga, which creates vacancies close to valence band leading to ...
Mikko Miettinen   +12 more
wiley   +1 more source

High Performance Core-Shell Ni/Ni(OH)2 Electrospun Nanofiber Anodes for Decoupled Water Splitting

open access: yes, 2020
Large surface area porous electrodes prepared from electrospun Ni and Ni-Co fibers A Ni/Ni(OH)2 core/shell structure produced by galvanic cycling in alkaline media Electrodes with improved current density and charge capacity High ...
Gennady E., Shter   +5 more
core   +1 more source

A Unique Complication after a Routine Operation – Late Pseudoaneurysm of the Brachial Artery after Plate Fixation of Humeral Shaft Fracture. A Case Report and Review of the Literature [PDF]

open access: yesFolia Medica, 2020
We report an extremely rare case of an 82-year-old woman with pseudoaneurysm of the brachial artery developed 22 months after a plate osteosynthesis with angularly stable locking plates for the proximal humerus.
Boris Kyurkchiev   +3 more
doaj   +3 more sources

Magnetic‐Field Induced Charge Accumulation in Scalable Magnetoelectric PVDF‐TrFE/Ni Composite Devices

open access: yesAdvanced Physics Research, Volume 4, Issue 6, June 2025.
This study reports strong magnetoelectric effects in PVDF‐TrFE/Ni bilayer composites. Direct measurements of charge accumulation reveal high induced polarization, corresponding to open circuit voltages of 75 mV. Finite element simulations are in good agreement with experiments and demonstrate device scalability.
Federica Luciano   +10 more
wiley   +1 more source

Enhanced Recovery of Valuable Materials from Spent Lithium‐Ion Secondary Batteries Using Organic Acids as Leaching and Precipitating Agents

open access: yesChemistrySelect, Volume 9, Issue 36, September 25, 2024.
Cathode active materials were separated from the Al foil at 400°C, and oxalates of Mn, Co, and Ni were obtained at a ratio of 1.5:1.0:2.5 by precipitation with oxalic acid after metal leaching with lactic acid. Abstract In this study, the cathode active material was first separated from the aluminum foil through a heat treatment at 500 °C.
Su Ho Bae, Keon Sang Ryoo
wiley   +1 more source

Does change in area-level deprivation, change health outcomes? A latent class growth analysis of population data

open access: yesInternational Journal of Population Data Science
Objectives Trajectories of social mobility may be a more informative predictor of health than point-in time analyses. We sought to identify area-level deprivation trajectories within the Northern Ireland (NI) population and their associations with ...
Finola Ferry   +4 more
doaj   +1 more source

Adsorption of Nickel and Chromium From Aqueous Solutions Using Copper Oxide Nanoparticles: Adsorption Isotherms, Kinetic Modeling, and Thermodynamic Studies [PDF]

open access: yesAvicenna Journal of Environmental Health Engineering, 2019
The research was conducted with an aim to assess the efficiency of copper oxide nanoparticles as an adsorbent to remove Ni and Cr. The effect of pH, adsorbent dosage, contact time, initial concentration of metals (Ni and Cr) on the adsorption rate was ...
Raziyeh Hosseini   +2 more
doaj   +1 more source

Influence of Ni and Be elements on Al‐Mg‐Si alloys in different states

open access: yesElectrical Materials and Applications, Volume 1, Issue 3-4, September-December 2024.
Ni and Be elements have different effects on the properties and microstructure of Al‐Mg‐Si alloys in different states (as‐cast, extruded, and ageing). Abstract To improve the comprehensive performance of Al‐Mg‐Si alloy conductors in overhead power lines, enhance the energy‐saving and emission‐reduction efficiency of transmission links, and reduce line ...
Guoxing Li, Peng Dang, Yongjia Zhang
wiley   +1 more source

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