Results 151 to 160 of about 1,009,132 (327)
Coverage in airborne backbone network
Tongxin xuebao, 2018 The high-altitude long-durance unmanned aerial vehicle (HALE-UAV) equipped with directional antenna and the cuboid-shaped air corridor (AC) were taken as the study objects,and the basic idea was to extract the invariant coverage area of moving spherical ...
Bo ZHENG +3 more
doaj
Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability
Advanced Functional Materials, EarlyView.This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao +13 more
wiley +1 more source
Effects of Cylinder Temperature and Pressure on Ignition Delay in Direct Injection Diesel Engine
, 1989 Sangil Kwon, Masataka ARAI, H. Hiroyasu
openalex +2 more sources
Advanced Functional Materials, EarlyView.Free‐standing plasmonic gold‐based fractal antennas are fabricated by 3D nanoprinting, employing focused electron beam induced deposition and an optimized purification method to remove carbon while conserving structural fidelity. Simulation and experiment show broadband plasmonic activity, including customizable polarizability, thereby paving the way ...
Verena Reisecker +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Heterogeniety in electrochemical systems heavily influences device performance and durability. The study shows unique evidence of spatio‐operational heterogeneity in fuel cells via operando neutron and X‐ray tomography. Large variations in membrane thickness and hydration depend upon location and operating conditions, with implications on membrane ...
Pranay Shrestha +9 more
wiley +1 more source
Effect of orientation on the wake of a square cylinder at low Reynolds numbers [PDF]
, 2004 Sushanta Dutta +2 more
openalex
Smooth elastic contact of cylinders by caustics: the contact length in the Brazilian disc test
, 2013 Stavros K. Kourkoulis +2 more
openalex +1 more source
Reynolds number effect in a problem of sound generation by round and truncated cylinder streamlined by turbulent flow [PDF]
, 2012 Victor Kopiev +2 more
openalex +1 more source
GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction
Advanced Functional Materials, EarlyView.Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri +12 more
wiley +1 more source
Transient thermal stresses in a reinforced hollow disk or cylinder containing a radial crack [PDF]
The transient thermal stress problem in a hollow cylinder or a disk containing a radial crack is considered. It is assumed that the cylinder is reinforced on its inner boundary by a membrane which has thermoelastic constants different than those of the ...
Erdogan, F., Tang, R.
core +1 more source