Results 51 to 60 of about 300,065 (291)

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Indoor Measurement Research on Polarimetric Scattering Characteristics of UAV

Leida xuebao, 2016
Knowledge of target polarization characteristics is valuable for radar target detection, classification, and identification. We conducted experimental research on an Unmanned Aerial Vehicle (UAV) with complex materials and structures to determine the ...
Bai Yang, Wu Yang, Yin Hongcheng, Que Xiaofeng   +3 more
doaj   +1 more source

Robustness of the Fractal Regime for the Multiple-Scattering Structure Factor

, 2016
In the single-scattering theory of electromagnetic radiation, the {\it fractal regime} is a definite range in the photon momentum-transfer $q$, which is characterized by the scaling-law behavior of the structure factor: $S(q) \propto 1/q^{d_f}$.
Botet, Robert, Katyal, Nisha, Puri, Sanjay   +2 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

The mutual rectification effect of electric currents induced by electromagnetic waves in materials with non-additive energy spectrum: the quantum kinetic equation approach

, 2010
The effect of direct current component appearance in material with non-additive energy spectrum in the case when two electromagnetic waves with mutually transverse planes of polarization are incident normally on the surface of the sample is studied on ...
Konchenkov, V. I., Kryuchkov, S. V., Zav'yalov, D. V.   +2 more
core   +1 more source

On Electromagnetic Scattering from a Penetrable Corner [PDF]

SIAM Journal on Mathematical Analysis, 2017
This article is concerned with the time-harmonic electromagnetic (EM) scattering from a generic inhomogeneous medium. It is shown that if there is a right corner on the support of the medium, then it scatters every pair of incident EM fields, excluding a possible class of EM fields which are of very particular forms.
Hongyu Liu 0001, Jingni Xiao
openaire   +2 more sources

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

The effective ellipsoid: a method for calculating the permittivity of composites with multilayer ellipsoids

Science and Engineering of Composite Materials, 2018
In order to calculate the effective permittivity of a mixture with multilayer ellipsoids, this paper presents a self-consistent approximation (SCA) on the basis of the Bruggeman’s analytical model.
Yuan Liming, Xu Yonggang, Dai Fei, Zhang Deyuan   +3 more
doaj   +1 more source

Research on Electromagnetic Scattering Influence of Transmission Towers on Medium Wave Antenna Based on the Characteristic Mode Theory

International Journal of Antennas and Propagation, 2023
Electromagnetic scattering from UHV transmission towers is a major factor affecting the safety and stability of the surrounding antenna signal system. In this paper, the electromagnetic scattering effect of ±800 kV UHV DC transmission tower on the medium-
Shiqi Zong, Chaoqun Jiao, Jiangong Zhang, Zhibin Zhao, Zheyuan Gan   +4 more
doaj   +1 more source

Electromagnetic Scattering Characteristic Extraction and Imaging Recognition Algorithm: A Review

Leida xuebao, 2022
One remarkable trend in applying synthetic aperture radar technology is the automatic interpretation of Synthetic Aperture Radar (SAR) images. The electromagnetic scattering characteristics have a robust correlation with the target structure, which ...
Mengdao XING, Yiyuan XIE, Yuexin GAO, Jinsong ZHANG, Jiaming LIU, Zhixin WU   +5 more
doaj   +1 more source