Results 21 to 30 of about 8,669 (203)

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

Materials & 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, D.T.A. Matthews, G.R.B.E. Römer   +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

IEEE 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, Minna Niittymaki, Rafal Anyszka, Ilkka Rytoluoto, Xiaozhen He, Eetta Saarimaki, Kari Lahti, Mika Paajanen, Wilma Dierkes, Anke Blume   +9 more
doaj   +1 more source

The Platonic solids and fundamental tests of quantum mechanics [PDF]

Quantum, 2020
The Platonic solids is the name traditionally given to the five regular convex polyhedra, namely the tetrahedron, the octahedron, the cube, the icosahedron and the dodecahedron.
Armin Tavakoli, Nicolas Gisin
doaj   +1 more source

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

npj 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, Yitao Qiu, Shideh Kabiri Ameri, Hongwoo Jang, Zhaohe Dai, YongAn Huang, Nanshu Lu   +6 more
doaj   +1 more source

An Overview: Laser-Based Additive Manufacturing for High Temperature Tribology

Frontiers in Mechanical Engineering, 2019
Laser-based additive manufacturing (LBAM) is a versatile manufacturing technique, extensively adopted to fabricate metallic components of enhanced properties. The current review paper provides a critical assessment of the fabricated metallic coatings and
Naveed Ur Rahman, David Thomas Allan Matthews, David Thomas Allan Matthews, Matthijn de Rooij, Amir Mahyar Khorasani, Amir Mahyar Khorasani, Ian Gibson, Ian Gibson, Ian Gibson, Laura Cordova, Gert-willem Römer   +10 more
doaj   +1 more source

The Mechanics of Solidity [PDF]

Nature, 1920
UNDER this title Mr. J. Innes (NATURE, November 18) suggests, for the benefit of engineers, that coefficients of thermal expansion are fairly closely related to hardness. His list of thirty-eight materials ranging from diamond to indiarubber is given in order of thermal expansion.
  +5 more sources

The crash energy absorption of the vehicles front structures

Transport, 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, Antanas Žiliukas   +1 more
doaj   +1 more source

Silica Surface-Modification for Tailoring the Charge Trapping Properties of PP/POE Based Dielectric Nanocomposites for HVDC Cable Application

IEEE Access, 2020
This paper focuses on novel insulation polypropylene/poly(ethylene-co-octene) (PP/POE) nanocomposites for High Voltage Direct Current (HVDC) cable application.
Xiaozhen He, Ilkka Rytoluoto, Rafal Anyszka, Amirhossein Mahtabani, Eetta Saarimaki, Kari Lahti, Mika Paajanen, Wilma Dierkes, Anke Blume   +8 more
doaj   +1 more source

Optimization design based approach for the determination and minimization of the displacement under tensile load in hybrid composite joint

Fracture and Structural Integrity, 2020
C Composite materials are most often used for lengthier and thin structures susceptible to buckle. The optimization is often carried out taking into consideration the resistance to buckling and tensile loads for minimum displacement i.e maximization ...
Sahli Abderahmane, Fouzia Merabbi, Abdelkader Lousdad, Abdelkader Megueni   +3 more
doaj  

Numerical investigation to reduce environmental emissions from manufacturing industries

Journal of Building Materials and Structures, 2021
This paper aims to study carbon dioxide emissions from the cement manufacturing under wind conditions. These effects are investigated by Computational Fluid Dynamics (CFD) code used both method such as a Large Eddy Simulation (LES) and K-ε methods to ...
Hadj Miloua
doaj   +1 more source