Results 141 to 150 of about 705,883 (316)
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Monte Carlo model of the uncertainty of SEA loss factors
, 2010 Finite Element Methods are widely used to model vibro-acoustic systems, but as the modal density becomes higher this type of model becomes inaccurate and impractical.
Fernandez, M.J. +3 more
core
Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion
Advanced Engineering Materials, EarlyView.Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello +7 more
wiley +1 more source
Conversion model of annual statistics to worst-month statistics of troposcatter
Tongxin xuebao, 2016 The present worst-month prediction model,however,cannot reflect the me ical characteristics of tro-poscatter propagation accurately.Hence,based on the worst-month prediction models introduced in the recommendation ITU-R P.617-3 and ITU-R P.841-4 ...
Lei LI +5 more
doaj
Multiband Measurement-Based Characterization of Building Materials
IEEE Open Journal of Antennas and PropagationMillimeter-wave and sub-THz wireless communications promise high data rate and low-latency transmission for both indoor and outdoor short-range applications, but their deployment faces challenges due to the high isotropic path loss and severe obstacle ...
Silvi Kodra +10 more
doaj +1 more source
Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition
Advanced Engineering Materials, EarlyView.AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley +1 more source
Diffraction of Sound Waves by a Periodic Array of Impedance Screens
AcousticsAir-penetrating and noise-canceling constructions are required for numerous noise control issues. High ventilation performance conflicts with effective sound insulation, and vice versa.
Nikolay Kanev
doaj +1 more source
Sound Transmission Loss of a Sandwich Plate with Adjustable Core Layer Thickness. [PDF]
Materials (Basel), 2020 Ehrig T +5 more
europepmc +1 more source
Optical waveguide analysis using transmission lines
Optical fibres have been used as a key medium for telecommunication and networking for more than two decades because in principle they offer sufficient transmission capacity, reaching total rates as high as Tbits/s per fibre.
Qian, Xin
core
, 2014 With increasingly tighter regulations on noise exposure during flight, aircraft designers have been compelled to innovate structures that minimise noise transmission into the cabin space.
Zhou, Jie
core