Results 71 to 80 of about 206,780 (273)
Experimental investigation of perforations interactions effects under high sound pressure levels [PDF]
arXiv, 2009 Most models for predicting the acoustic response of perforated panels are based on the assumption that there is no interactions between the holes. The common way of taking into account the perforates effects is the use of Fok's functions. The few papers that deal with these effects study the case of low sound pressure levels.
arxiv
Advanced Materials Interfaces, EarlyView.CO2 laser ablation, a fast, inexpensive, and reproducible method, is used to create flexible elastomer molds with millimeter‐long cavities for the fabrication of dissolvable polymer needles. Made from PVP, these milli‐needles achieve ≈560 µm penetration into porcine skin, demonstrating their potential for effective transdermal drug delivery.
Matteo Tollemeto +7 more
wiley +1 more source
Atomic Layer Deposition of ZnO Coating on Biodegradable Fe‐Based Alloys
Advanced Materials Interfaces, EarlyView.A biodegradable Fe69Mn30C1 alloy is coated with ZnO using atomic layer deposition at 100 °C. Coating thickness impacts surface roughness, wettability, and in vitro degradation while maintaining hydrophilicity. The ZnO coating exhibits significant antibacterial activity against Staphylococcus aureus, achieving an inhibitory rate of up to 99.2%, and can ...
Birgit Paul +11 more
wiley +1 more source
Cause rare d'une perforation de la cloison nasale
The Pan African Medical Journal, 2014 Les perforations de la cloison nasale constituent une pathologie fréquente en ORL. Leurs causes sont multiples et restent dominées par les traumatismes chirurgicaux. Les étiologies infectieuses et notamment la tuberculose sont rares.
Ali Jahidi +4 more
doaj +1 more source
Radar Cross Section Reduction of Metallic Plate Loaded with Via Hole Dielectric Substrate
Advanced Electromagnetics, 2019 Radar cross section (RCS) stealth technology has a major importance in the military applications. In this paper, RCS reduction of metallic sheet is investigated through loading it by dielectric substrate with tapered via holes. The via holes tapering are
H. A. Malhat +2 more
doaj +1 more source
Upscaling method for problems in perforated domains with non-homogeneous boundary conditions on perforations using Non-Local Multi-Continuum method (NLMC) [PDF]
arXiv, 2018 In this paper, we present an upscaling method for problems in perforated domains with non-homogeneous boundary conditions on perforations. Our methodology is based on the recently developed Non-local multicontinuum method (NLMC). The main ingredient of the method is the construction of suitable local basis functions with the capability of capturing ...
arxiv
Homogenization for non-local elliptic operators in both perforated and non-perforated domains [PDF]
, 2018 In this paper, we focus on the homogenization process of the non-local elliptic boundary value problem $$\mathcal{L}_\varepsilon^s u_\varepsilon =(-\nabla\cdot (A_\varepsilon(x)\nabla))^{s}u_\varepsilon=f \mbox{ in } \mathcal O, $$ with $0
arxiv +1 more source
Functional Porous Graphene Membranes: From Superhydrophobic to Slippery
Advanced Materials Interfaces, EarlyView.This work highlights a versatile approach for modifying porous graphene surfaces with an aim to control its wettability for challenging membrane applications. Utilizing an efficient silanization process, aided by the defects present on the graphene, the possibility to fabricate graphene‐siloxane hybrid layer that can be either superhydrophobic or ...
Abhijna Das +7 more
wiley +1 more source
Flexographic Printed Flexible Thermochromic Stickers for Smart Sensing Applications
Advanced Materials Interfaces, EarlyView.Thermochromic complexes of 1‐butyl‐3‐methylimidazolium chloride and 4‐chloronickelate are synthesized and incorporated in hydroxypropyl cellulose‐based water inks. Films with 40 wt.% thermochromic complexes and three layers are flexographic printed on polypropylene tags in a process compatible with roll‐to‐roll manufacturing. After encapsulation with a
M. Morais +9 more
wiley +1 more source
Generalized Multiscale Finite Element Methods for problems in perforated heterogeneous domains [PDF]
arXiv, 2015 Complex processes in perforated domains occur in many real-world applications. These problems are typically characterized by physical processes in domains with multiple scales (see Figure 1 for the illustration of a perforated domain). Moreover, these problems are intrinsically multiscale and their discretizations can yield very large linear or ...
arxiv