Results 81 to 90 of about 2,920,178 (300)

Tamper‐Responsive Physical Unclonable Functions via Graphene‐Interlayered Block Copolymer Random Structures

open access: yesAdvanced Materials, EarlyView.
Self‐invalidating multilayer physical unclonable functions (PUFs) integrate fingerprint‐like metal nanopattern bilayers from block copolymer templates with highly reactive reduced graphene oxide (rGO) interlayers. This tamper‐responsive architecture blocks all unauthorized physical and chemical replication attempts while autonomously deactivating ...
Gyu Hui Jo   +7 more
wiley   +1 more source

Theoretical Model Predictions for Production of Medically Used Radionuclides on Alpha Induced with Cobalt-59 At Energies of 25 - 172 MeV

open access: yesEast African Journal of Biophysical and Computational Sciences
This study used the theoretical nuclear model codes COMPLET and TALYS-1.95 to make theoretical predictions of the medically important production cross-sections for Chromium-51, Manganese-54, Iron-59, Cobalt-59 and Cobalt-60 radionuclides produced in the ...
Y. Tiguaded, F. K. Amanuel
doaj   +1 more source

MCNP Simulating the Apatial Dose Field of Cobalt-60 Irradiation Facility

open access: yesJournal of Isotopes, 2022
The Monte Carlo particle transport code program MCNP is used to establish a cobalt-60 irradiation device model and simulate the peripheral spatial dose field distribution outside the irradiation station in the irradiation room.
ZENG Diming;GU Jun;SONG Yanchao
doaj  

Synthesis and characterisation of cobalt hydroxide, cobalt oxyhydroxide and cobalt oxide nanodiscs

open access: yes, 2010
Cobalt hydroxide, cobalt oxyhydroxide and cobalt oxide nanomaterials were synthesized through simple soft chemistry. The cobalt hydroxide displays hexagonal morphology with clear edges 20 nm long.
Liu, Hongwei   +3 more
core   +1 more source

Interface‐Mediated Catalysis for Improved Hydrogen Storage in Reactive Hydride Composites

open access: yesAdvanced Materials, EarlyView.
Catalyst–hydride interfaces are engineered in Co@C‐ and Ni@C‐modified 2LiH + MgB2 reactive hydride composites to accelerate hydrogen uptake and release. Multiscale scattering, in‐situ synchrotron radiation powder x‐ray diffraction and density functional theory calculations reveal the structural and electronic origin of the catalytic enhancement ...
Yuanyuan Shang   +12 more
wiley   +1 more source

Cobalt, the richest and most wonderful mining district the world has ever known, produces silver, nickel, cobalt, arsenic [electronic resource] : fortunes made rapidly /

open access: yes, 1905
Cover title: Cobalt.Caption title: The romance of Cobalt.Electronic reproduction.Mode of access: Internet ...
Wills & Co. (Cobalt, Ont.)
core  

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

open access: yesAdvanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang   +12 more
wiley   +1 more source

Cobalt-Catalyzed Hydrocyanation of Methylenecyclopropanes to Homoallylic Nitriles

open access: yes, 2022
We describe herein a novel synthesis of various homoallylic nitriles via cobalt-catalyzed hydrocyanation of methylenecyclopropanes. Excellent selectivity, mild reaction conditions, good functional group compatibility, gram-scale reaction, and product ...
Mingdong Jiao (9547521)   +1 more
core   +1 more source

Controlled Growth of Boron Nitride in Various Phases

open access: yesAdvanced Materials Interfaces, EarlyView.
Phase‐selective boron nitride growth is presented as a unified materials‐design problem across hexagonal, rhombohedral, cubic, and amorphous phases. By linking synthesis routes to thermodynamic stability, kinetic accessibility, surface diffusion, interfacial templating, and energetic activation, this review clarifies how bonding and stacking are ...
Pan Wu   +6 more
wiley   +1 more source

3D Nanorod‐Shaped Binder‐Free Ni1−xFexCo2O4 Anodes Demonstrate High Performance and Stable Operation Under Accelerated Stress Tests in Anion Exchange Membrane Water Electrolysis

open access: yesAdvanced Materials Interfaces, EarlyView.
3D shaping of Ni1‐xFexCo2O4 spinel electrocatalyst to form high aspect ratio nanorods, made of 25 nm grain size particles and directly grown on Nickel felt, is proposed to improve the performance of industrial catalysts based on group‐VIII transition‐metal oxides.
Ataollah Niyati, Ombretta Paladino
wiley   +1 more source

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