Results 51 to 60 of about 221,217 (305)

Multifunctional Open-Cell Copper Foam with Sphere Pores by a Modified Sintering–Dissolution Process

open access: yesMetals, 2023
In this study, open-cell copper foam with completely interconnected sphere pores was prepared by a modified sintering–dissolution process using a preformed calcium chloride template skeleton as space holder.
Changxing Li   +5 more
doaj   +1 more source

Energy-Efficient Low-Complexity Algorithm in 5G Massive MIMO Systems [PDF]

open access: yes, 2021
Energy efficiency (EE) is a critical design when taking into account circuit power consumption (CPC) in fifth-generation cellular networks. These problems arise because of the increasing number of antennas in massive multiple-input multiple-output ...
A. Hamzah, Shipun   +6 more
core   +1 more source

Preparation and Three-point Bending Performance of Steel Foam Plate

open access: yesJournal of Aeronautical Materials, 2017
In order to fabricate steel foams with high porosity,uniform pore structure and high-performance, steel foams with different porosities and cell sizes were fabricated by a sintering-dissolution process using 316L stainless steel powder as raw material ...
SUN Yadong   +5 more
doaj   +1 more source

Leiomyoma with Isolated Foam Cell Vasculopathy: A Case Report

open access: yesMedical Journal of Dr. D.Y. Patil Vidyapeeth, 2023
Foam cell vasculopathy is an obliterating type of vasculitis characterized by fibrinoid necrosis, sub-intimal foam cell deposition, vessel wall hyalinosis, and lymphocytic infiltrate.
Brij M. K. Singh   +2 more
doaj   +1 more source

Semi-flexible Additive Manufacturing Materials for Modularization Purposes - A modular assembly proposal for a foam edge-based spatial framework [PDF]

open access: yes, 2019
This paper introduces a series of design and fabrication tests directed towards the use of bendable 3D printing materials in order to simplify a foam bubble-based geometry as a frame structure for modular assembly.
Lohse, Theresa, Werner, Liss C.
core   +1 more source

Dynamic behavior and damping capacity of auxetic foam pads [PDF]

open access: yes, 2006
A novel set of auxetic (negative Poisson's ratio) open cell polyurethane foam has been developed and tested under dynamic loading conditions to assess the viscoelastic response under white noise random excitation and compressive cycling.
Bezazi, A   +3 more
core   +1 more source

Experimental investigation on the effect of mixed acids etched nickel foam electrode on performance of an alkaline direct ethanol fuel cell [PDF]

open access: yesE3S Web of Conferences, 2020
The three-dimensional porous materials represented by nickel foam have broad application prospects in the fuel cell field due to their excellent physical properties (high conductivity, high porosity and high specific surface area, etc.).
Zhang Jiajia   +4 more
doaj   +1 more source

Mechanical properties and energy absorbing capabilities of Z-pinned aluminum foam sandwich [PDF]

open access: yes, 2019
Aluminum foam sandwich (AFS) structures are suitable for impact protection in lightweight structural components due to their specific energy absorption capability under compression.
Kadkhodapour, Javad   +2 more
core   +2 more sources

Natural Biflavonoids Modulate Macrophage–Oxidized LDL Interaction In Vitro and Promote Atheroprotection In Vivo

open access: yesFrontiers in Immunology, 2017
The accumulation of oxidized ApoB-100-containing lipoproteins in the vascular intima and its subsequent recognition by macrophages results in foam cell formation and inflammation, key events during atherosclerosis development.
Jorge H. Tabares-Guevara   +9 more
doaj   +1 more source

Performance evaluation of optical attocells configuration in an indoor visible light communication [PDF]

open access: yes, 2019
Visible light communication VLC is deemed as futuristic technology applied for both illumination and data communication due to the low-cost energy consumption, long life expectancy, huge bandwidth, and high security compared to radio frequency RF ...
Abdullah, Mohammad Faiz Liew   +1 more
core   +1 more source

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