Results 71 to 80 of about 567,993 (282)

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Energy Assessment of Hazelnut Shells (Corylus avellana L.) of Selected Turkish Varieties

open access: yesEnergies
The purpose of this study was to evaluate the energy and environmental potential of waste biomass in the form of hazelnut shells from selected Turkish varieties of Corylus avellana L.
Kamila E. Klimek   +4 more
doaj   +1 more source

Application of gradient elasticity to benchmark problems of beam vibrations

open access: yesJournal of the Mechanical Behavior of Materials, 2016
The gradient approach, specifically gradient elasticity theory, is adopted to revisit certain typical configurations on mechanical vibrations. New results on size effects and scale-dependent behavior not captured by classical elasticity are derived ...
Kateb K.M.   +6 more
doaj   +1 more source

Hybrid Sandwich Panels: A Review

open access: yesInternational Journal of Applied Mechanics and Engineering, 2020
A high specific stiffness, high specific strength, and tailoring the properties for specific application have attracted the attention of the researchers to work in the field of laminated composites and Sandwich structures.
S.H. Sandeep, C.V. Srinivasa
doaj   +1 more source

Curvature-driven instabilities in thin active shells

open access: yesRoyal Society Open Science, 2022
Spontaneous material shape changes, such as swelling, growth or thermal expansion, can be used to trigger dramatic elastic instabilities in thin shells.
Andrea Giudici, John S. Biggins
doaj   +1 more source

Enabling Digital Continuity in Virtual Manufacturing for Eco‐Efficiency Assessment of Lightweight Structures by Means of a Domain‐Specific Structural Mechanics Language: Requirements, Idea and Proof of Concept

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a solver‐agnostic domain‐specific language (DSL) for computational structural mechanics that strengthens interoperability in virtual product development. Using a hierarchical data model, the DSL enables seamless exchange between diverse simulation tools and numerical methods.
Martin Rädel   +3 more
wiley   +1 more source

A Study of the Behavior of Shell Footings using Finite Element Analysis [PDF]

open access: yesEngineering and Technology Journal, 2013
In this research, the conical shell foundation is investigated. The two components of the interacting system; the soil and the shell foundation, are modelled using the finite element method.
Adel A. Al-Azzawi
doaj   +1 more source

Shell Middens and Shells

open access: yes
Abstract This chapter deals with the variability of anthropogenic shell deposits usually called shell middens and the different uses of molluscs during the Mesolithic in Europe. We present the geographical distribution and environmental setting of these emblematic archaeological sites, as well as their settlement patterns and their roles
Dupont, Catherine   +1 more
openaire   +2 more sources

Galaxies with Shells in the Illustris Simulation: Metallicity Signatures

open access: yes, 2017
Stellar shells are low surface brightness arcs of overdense stellar regions, extending to large galactocentric distances. In a companion study, we identified 39 shell galaxies in a sample of 220 massive ellipticals ($\mathrm{M}_{\mathrm{200crit}}>6 ...
Amorisco, Nicola C.   +3 more
core   +1 more source

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini   +6 more
wiley   +1 more source

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