Results 91 to 100 of about 11,091,979 (254)

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Electron-Transfer Rates in Host–Guest Assemblies at β‑Cyclodextrin Monolayers [PDF]

open access: yes, 2017
The effect of the distance between a β-cyclodextrin (βCD) host core and a conductive substrate on the electron-transfer rate of complexed guests as well as of free-diffusing electrochemically active probes has been studied.
Kudernac, Tibor   +17 more
core   +1 more source

Substituent-modulated barrierless ESIPT and antioxidant activity in 2-(2-hydroxyphenyl)pyrimidine derivatives

open access: yesOpen Physics
Excited-state intramolecular proton transfer (ESIPT) is a key photophysical process closely related to the optical properties and antioxidant activity of functional molecules, yet its substituent-dependent regulation in nontraditional ESIPT systems ...
Li Yongchun   +6 more
doaj   +1 more source

UJI IN SILICO SIFAT ANTIOKSIDAN, TOKSISITAS DAN FARMAKOKINETIKA MOLEKUL KAEMFEROL TERPENILASI

open access: yesDalton
Senyawa kaempferol terpenilasi diketahui memiliki aktivitas antioksidan yang sangat baik. Akan tetapi belum ada diteliti potensi kaemferol terpenilasi sebagai obat secara eksperimen maupun teoritis.
Imelda Imelda   +3 more
doaj   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

open access: yesAdvanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik   +9 more
wiley   +1 more source

First-principles investigation of aspirin, paracetamol, and ibuprofen adsorption on triquinoxalinylene and benzoquinone-based covalent organic framework

open access: yesScientific Reports
Pharmaceutical contaminants such as aspirin (ASP), paracetamol (PAR), and ibuprofen (IBU) present increasing risks to environmental and human health, necessitating efficient detection and removal strategies.
Sami Bawazeer
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

The global, regional, and national burden attributable to low bone mineral density, 1990–2020: an analysis of a modifiable risk factor from the Global Burden of Disease Study 2021

open access: yes
BACKGROUND: Fractures related to osteoporosis and low bone mineral density lead to substantial morbidity, mortality, and cost to individuals and health systems.
GBD 2021 Low Bone Mineral Density Collaborators
core   +1 more source

Facile Electron Transfer to CO2 during Adsorption at the Metal | Solution Interface [PDF]

open access: yes, 2019
We estimate the rate of electron transfer to CO2 at the Au (211)|water interface during adsorption in an electrochemical environment under reducing potentials.
Meredith, Fields   +6 more
core   +1 more source

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