Results 111 to 120 of about 2,253,897 (339)

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source

Theoretical simulation of a dual-band and dual-broadband terahertz metamaterial absorber using two asymmetric rectangular rings

AIP Advances
In this paper, a dual-band and dual-broadband terahertz (THz) metamaterial absorber (MA) using two asymmetric rectangular rings is proposed and studied.
Kwang-Jin Ri
doaj   +1 more source

Dual Polarized Dual Fed Vivaldi Antenna for Cellular Base Station Operating at 1.7–2.7 GHz

International Journal of Antennas and Propagation, 2017
The paper presents a novel dual polarized dual fed Vivaldi antenna structure for 1.7–2.7 GHz cellular bands. The radiating element is designed for a base station antenna array with high antenna performance criteria.
Marko Sonkki, Sami Myllymäki, Jussi Putaala, Eero Heikkinen, Tomi Haapala, Harri Posti, Heli Jantunen   +6 more
doaj   +1 more source

Adaptive polarization separation [PDF]

, 1981
A broadband adaptively controlled polarization separation network is discussed. Two transmitted signals vertically and horizontally polarized are received as elliptically polarized signals.
Gianatasio, A., Pelchat, G. M., Rassweiler, G. G., Young, L. R.   +3 more
core   +1 more source

Design, Measurement and Analysis of Near-Field Focusing Reflective Metasurface for Dual-Polarization and Multi-Focus Wireless Power Transfer

IEEE Access, 2019
A new design of dual-polarization and multi-focus near-field focusing (NFF) reflective metasurface for wireless power transfer (WPT) system is proposed in this paper. In terms of multi-beam phase synthesis of reflective metasurface, the dual-polarization
Pei Zhang, Long Li, Xuanming Zhang, Haixia Liu, Yan Shi   +4 more
semanticscholar   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Use of Dual Polarization Radar in Validation of Satellite Precipitation Measurements: Rationale and Opportunities [PDF]

Dual-polarization weather radars have evolved significantly in the last three decades culminating in the operational deployment by the National Weather Service. In addition to operational applications in the weather service, dual-polarization radars have
Bringi, V. N., Chandrasekar, V., Gorgucci, E., Hou, Arthur, Petersen, W. A., Rutledge, S. A., SkofronickJackson, Gail, Smith, Eric   +7 more
core   +1 more source

Monitoring of multi-frequency polarization of gamma-ray bright AGNs

, 2013
We started two observing programs with the Korean VLBI Network (KVN) monitoring changes in the flux density and polarization of relativistic jets in gamma-ray bright AGNs simultaneously at 22, 43, 86, 129 GHz.
Baek, Jun-Hyun, Byun, Do-Young, Han, Myounghee, Kang, Sincheol, Kim, Jeong-Sook, Kim, Soon-Wook, Lee, Sang-Sung, Seen, Jungmin   +7 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

Dual Polarized Dual Coverage Reflectarray-Based Passive Reflecting Surface for Next-Generation Networks

IEEE Open Journal of Antennas and Propagation
A single-layer reflectarray configuration is investigated for dual-polarization operation at 5G millimeter wave (mmWave) frequencies. The proposed reflectarray cell is designed as a viable solution for passive reflecting surfaces to enhance 5G network ...
Francesca Venneri, Sandra Costanzo
doaj   +1 more source