Results 61 to 70 of about 289,146 (351)

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source

Wideband Dual-Polarized PRGW Antenna Array with High Isolation for Millimeter-Wave IoT Applications

Sensors
This work presents a novel dual-polarized antenna array tailored for Internet of Things (IoT) applications, specifically designed to operate in the millimeter-wave (mm-wave) spectrum within the frequency range of 30–60 GHz.
Zahra Mousavirazi, Mohamed Mamdouh M. Ali, Abdel R. Sebak, Tayeb A. Denidni   +3 more
doaj   +1 more source

Correction to “Geometrical Structure Classification of Target HRRP Scattering Centers Based on Dual Polarimetric $H / \alpha$ Features”

IEEE Access, 2019
In the published version of our paper, we had mixed up the results when we plotted the graphs in Table 2. The correct graphs of Table 2 are given in this correction. The results and conclusion of our paper remain the same.
Teng Long, Liang Zhang, Yang Li, Yanhua Wang   +3 more
doaj   +1 more source

Underlying Topography Inversion Using Dual Polarimetric TomoSAR

Sensors, 2021
Underlying topography plays an important role in the national economic construction, military security, resource exploration and investigation. Since synthetic aperture radar tomography (TomoSAR) can achieve the three-dimensional imaging of forests, it ...
Xing Peng, Shilin Long, Youjun Wang, Qinghua Xie, Yanan Du, Xiong Pan   +5 more
doaj   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Geometrical Structure Classification of Target HRRP Scattering Centers Based on Dual Polarimetric $H/\alpha$ Features

IEEE Access, 2019
Polarimetric high resolution range profile (HRRP) contains the geometrical structural information along radar line-of-sight and has shown great potentials in target recognition. In existing researches, H/α decomposition has been applied to exploit
Teng Long, Liang Zhang, Yang Li, Yanhua Wang   +3 more
doaj   +1 more source

Spin Polarization and Transport of Surface States in the Topological Insulators Bi2Se3 and Bi2Te3 from First Principles

, 2010
We investigate the band dispersion and the spin texture of topologically protected surface states in the bulk topological insulators Bi2Se3 and Bi2Te3 by first-principles methods.
Joel E. Moore, Oleg V. Yazyev, S. V. Eremeev, Steven G. Louie   +3 more
core   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Design Methodology for Wideband Sinuous Antennas With Radially Varying Flare Angle for Enhanced Versatility

IEEE Access
This paper presents a systematic design methodology for wideband sinuous antennas with a radially varying flare angle $\alpha $ , the angular width of the sinuous arm, and a key parameter governing the antenna’s gain and size, with the goal of ...
Hyunmin Hong, Yongshik Lee
doaj   +1 more source

PAPR Analysis for Dual-Polarization FBMC

, 2019
In a recent work we proposed a new radio access technique based on filter bank multi-carrier (FBMC) modulation using two orthogonal polarizations: dual-polarization FBMC (DP-FBMC). We showed that with good cross-polarization discrimination (XPD), DP-FBMC
Jamal, Hosseinali, Matolak, David W.
core   +1 more source