Results 1 to 10 of about 255,758 (167)
AbstractWe introduce the notion of porous invariants for multipath (or branching/nondeterministic) affine loops over the integers; these invariants are not necessarily convex, and can in fact contain infinitely many ‘holes’. Nevertheless, we show that in many cases such invariants can be automatically synthesised, and moreover can be used to settle ...
Engel Lefaucheux +3 more
openaire +3 more sources
Research progress on metal wire mesh porous materials
Metal wire mesh porous materials are kinds of porous materials with the controllable pores, high specific surface area, high strength, and low cost, which have been widely used in the filtration separation fields of high temperature flue gas and slurry ...
MA Jun +5 more
doaj +1 more source
Recent advances of SiOx-based anodes for sustainable lithium-ion batteries
The world is facing an ever-growing global energy crisis with unprecedented depth and complexity. The sustainable development of high energy density lithium-ion batteries for electric vehicles and portable electric devices has become a feasible way to ...
Mengyu Zhang +7 more
doaj +1 more source
Porous construction and surface modification of titanium-based materials for osteogenesis: A review
Titanium and titanium alloy implants are essential for bone tissue regeneration engineering. The current trend is toward the manufacture of implants from materials that mimic the structure, composition and elasticity of bones. Titanium and titanium alloy
Rui Wang, Shilei Ni, Li Ma, Meihua Li
doaj +1 more source
Aims: The present study aimed to evaluate the stress distribution of porous tantalum implant and titanium solid implant assisted overdenture (IAO) in mandibular bone by utilizing three-dimensional (3D) finite element (FE) analysis. Materials and Methods:
Ayshin Akbarzadeh +2 more
doaj +1 more source
Entropy Optimization and Thermal Behavior of a Porous System With Considering Hybrid Nanofluid
The aim of this research work is to study the performance of hybrid eclectically conducting nanofluid (MWCNT-Fe3O4) with entropy optimization impacts using the CVFEM approach.
Zahir Shah +6 more
doaj +1 more source
Thermal Gelation for Synthesis of Surface-Modified Silica Aerogel Powders
A spherical silica aerogel powder with hydrophobic surfaces displaying a water contact angle of 147° was synthesized from a water glass-in-hexane emulsion through ambient pressure drying. Water glass droplets containing acetic acid and ethyl alcohol were
Kyoung-Jin Lee +3 more
doaj +1 more source
The Fabrication of Porous ZnO Nanorods through Two-Step Aqueous Synthesis, and Their Properties
In this study, ZnO nanorods with a porous structure were successfully prepared using the chemical bath deposition (CBD) method. According to the surface and cross-sectional images photographed by scanning electron microscopy, we found that the diameters ...
Chih-Feng Yen +4 more
doaj +1 more source
Investigation of porosity and fractal properties of the sintered metal and semiconductor layers in the MDS capacitor structure [PDF]
MDS capacitor (metal - dielectric - semiconductor) is a structure in which metal plate is represented by compact bulk-porous pellets of niobium sintered powder, and semiconductor plate - by pyrolytic layer of MnO2.
Skatkov Leonid +2 more
doaj +1 more source
The Role of Cations in Resorcinol–Formaldehyde Gel Textural Characteristics
The production of resorcinol–formaldehyde xerogels has yielded insight into the gelation processes underpinning their structures. In this work, the role of the cation species from the catalyst is probed by studying the simultaneous addition of sodium ...
Stewart J. Taylor +2 more
doaj +1 more source

