Results 21 to 30 of about 7,959 (256)

Fabricating Laser-Induced Periodic Surface Structures on Medical Grade Cobalt–Chrome–Molybdenum: Tribological, Wetting and Leaching Properties

open access: yesLubricants, 2019
Hip-implants structured with anti-bacterial textures should show a low-friction coefficient and should not leach hazardous substances into the human body.
Sanne H. van der Poel   +4 more
doaj   +1 more source

Mechanics of Crater-Enabled Soft Dry Adhesives: A Review

open access: yesFrontiers in Mechanical Engineering, 2020
Dry adhesion is governed by physical rather than chemical interactions. Those may include van der Waals and electrostatic forces, friction, and suction. Soft dry adhesives, which can be repeatedly attached to and detached from surfaces, can be useful for
Liu Wang   +6 more
doaj   +1 more source

Effect of SBR/BR elastomer blend ratio on filler and vulcanization characteristics of silica filled tire tread compounds

open access: yesPolymer Testing, 2021
The effect of the SBR/BR blend ratio on marching modulus – no-plateau torque profile in vulcametry – of a silica filled tire tread compound is investigated.
Jungmin Jin   +3 more
doaj   +1 more source

Dynamic measurement setups for validating piezoelectric energy harvesters in driving conditions

open access: yesPolymer Testing, 2023
Sustainable power supply to flexible electronics is currently of high interest due to the transition to autonomous and self-driving vehicles. Piezoelectric Energy Harvesters (PEH) can be used as sustainable energy sources by harvesting the electrical ...
Carmela Mangone   +5 more
doaj   +1 more source

Effect of packer design on hydraulic fracturing of coal seam [PDF]

open access: yesE3S Web of Conferences, 2021
The article addresses the issue of in-situ methane drainage from coal seams using multiple hydraulic fracturing. The authors undertake the stress–strain analysis of rock mass in the vicinity of a drainage borehole subjected to loading by sealing packers ...
Klishin Sergei, Klishin Vladimir
doaj   +1 more source

To 60th anniversary of professor Yuri N. Radayev [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2022
The article is dedicated to the 60th anniversary of professor Yu. N. Radaev, the well-known scientist in the field of mechanics of deformable solids and applied mathematics, the member of the editorial board of the journal “Izvestiya of Saratov ...
Kossovich, Leonid Yurevich   +1 more
doaj   +1 more source

Investigation of the ultrashort pulsed laser processing of zinc at 515 nm: Morphology, crystallography and ablation threshold

open access: yesMaterials & Design, 2019
Bulk polycrystalline pure zinc is ablated in air using a picosecond laser source to perform single pulse and multi-pulse processing at a wavelength of 515 nm.
H. Mustafa   +2 more
doaj   +1 more source

Deposition of Ureido and Methacrylate Functionalities Onto Silica Nanoparticles and its Effect on the Properties of Polypropylene-Based Nanodielectrics

open access: yesIEEE Access, 2021
Surface modification of nanoparticles is often utilized to tailor the interfacial properties in dielectric nanocomposites. Introducing different functional groups to the nanoparticles’ surface may induce localized states (traps) that can enhance ...
Amirhossein Mahtabani   +9 more
doaj   +1 more source

Low-cost, μm-thick, tape-free electronic tattoo sensors with minimized motion and sweat artifacts

open access: yesnpj Flexible Electronics, 2018
Flexible electronics: cutting plotters cut costs of electronic tattoos Tattoos able to record heart rate and skin conditions have been fabricated with a low-cost cutting plotter.
Youhua Wang   +6 more
doaj   +1 more source

The crash energy absorption of the vehicles front structures

open access: yesTransport, 2003
During the frontal crash the longerons absorb most energy of all vehicles construction elements. In order to analyse the energy absorbing capabilities of longerons under axial compression loading and to evaluate the influence of longerons geometrical ...
Paulius GriÅ¡kevičius   +1 more
doaj   +1 more source

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