Results 71 to 80 of about 17,564 (264)

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Thin accretion disk around rotating hairy black hole: radiative property and optical appearance

open access: yesEuropean Physical Journal C: Particles and Fields
The gravitational decoupling method systematically generates hairy modifications to the solutions in general relativity due to new gravitational sources.
Zhen Li, Xiao-Kan Guo
doaj   +1 more source

Eigenfrequency sensitivity analysis of flexible rotors [PDF]

open access: yesApplied and Computational Mechanics, 2007
This paper deals with sensitivity analysis of eigenfrequencies from the viewpoint of design parameters. The sensitivity analysis is applied to a rotor which consists of a shaft and a disk. The design parameters of sensitivity analysis are the disk radius
Šašek J.
doaj  

Phase Boundary Engineering of Co2P‐CoP Branched Nanoparticles Enhances Cobalt Oxidation for Oxygen Evolution Electrocatalysis

open access: yesAdvanced Materials, EarlyView.
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan   +10 more
wiley   +1 more source

Numerical simulation of turbulent flow between shrouded contra-rotating disks

open access: yesAdvances in Mechanical Engineering, 2016
The turbulent flow between shrouded contra-rotating disks was numerically studied with a two-layer turbulence model and a modified Launder–Sharma low-Reynolds number k - ε model.
Shu-Xian Chen   +3 more
doaj   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

open access: yesAdvanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab   +8 more
wiley   +1 more source

Counter-rotating relativistic static thin disks

open access: yesRevista Integración, 2001
A detailed study of the Counter-Rotating Model (CRM) for generic fi-nite static axially symmetric thin disks with nonzero radial pressure is presented.
Omar A. Espitia, Guillermo A. González
doaj  

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

open access: yesAdvanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang   +4 more
wiley   +1 more source

Relativistic disks - I. Counter rotating disks [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1978
Lynden-Bell, D., Pineault, S.
openaire   +2 more sources

Strength of Rotating Disks

open access: yesTransactions of the Japan Society of Mechanical Engineers, 1952
The criterion for rupture of brittle materials like cast iron is σ=σB, where, σ is mean value of normal tensile stress on the surface of rupture ; the mean is generally a weighted mean, the effectiveness to the load being taken into account, and σB is ultimate tensile strength.
openaire   +2 more sources

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