Results 61 to 70 of about 6,179,270 (244)

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

Design and research of an ultra-wideband metal antenna with low radar cross section

Dianzi Jishu Yingyong, 2018
An ultra-wideband metal antenna with low radar cross section is proposed. The antenna adopts the metal Vivaldi as the radiation element, and utilizes a new-type frequency selective surface structure to reduce the radar cross section within the working ...
Zhang Qingchun, Yang Mingwu, Jiang Zhaoneng, Lu Xiaochi, Gao Sheng, Zhang Hua   +5 more
doaj   +1 more source

On Sea Ice/Water Discrimination by Airborne Weather Radar

IEEE Access, 2020
We consider a conceptual approach for the applicability of airborne weather radar for the sea ice/water discrimination and estimation of the sea ice age.
Alexey Nekrasov, Alena Khachaturian, Evgeny Abramov, Pavol Kurdel, Maria Gamcova, Jan Gamec, Mikhail Bogachev   +6 more
doaj   +1 more source

Development and performance evaluation of a multistatic radar system [PDF]

, 2008
Multistatic radar systems are of emerging interest as they can exploit spatial diversity, enabling improved performance and new applications. Their development is being fuelled by advances in enabling technologies in such fields as communications and ...
Doughty, Shaun Raymond, Doughty, S.R.
core  

How “Green” is Your Functional Material? Assessing Environmental Impacts of Multi‐Step Synthetic Protocols in Material Sciences at Various Technology Levels

Advanced Materials, EarlyView.
Environmental Synthesis Radar (ESR) evaluates the environmental impact of (early‐stage) multi‐step chemical syntheses, providing a holistic view by using 18 midpoint impact categories. Unlike conventional life‐cycle assessment (LCA) approaches, ESR reveals three complementary metrics: overall impact Vtotal, environmental hotspots VEF, and critical ...
Laura Plein, Alexander Schommer, Florian Dietrich, Moritz Gutsch, Heike Klesper, Kevin Schuller, Lars Jahnke, Jens Leker, Klaus Meerholz   +8 more
wiley   +1 more source

Bistatic High-Frequency Radar Cross-Section of the Ocean Surface with Arbitrary Wave Heights

Remote Sensing, 2020
The scattering theory developed in the past decades for high-frequency radio oceanography has been restricted to surfaces with small heights and small slopes.
Murilo Teixeira Silva, Weimin Huang, Eric W. Gill   +2 more
doaj   +1 more source

Multi‐Li+ Coordination for Superior Room‐Temperature Ionic Conductivity in PEO Solid Electrolytes

Advanced Materials, EarlyView.
A phosphonate‐functionalized polycarboxylate ether (P‐PCE) is introduced into PEO electrolytes to induce multi‐Li+ ions coordination, which effectively dissociates lithium salts, liberates Li+ from the strong chelation by PEO chains, and promotes fast Li+ hopping between adjacent coordination sites. Simultaneously, this design establishes dynamic, high‐
Hengming Yan, Bowen Zhang, Xuefan Liu, Lu Wang, Cunlong Hu, Anran Sheng, Congcong Zhang, Linglong Kong, Zhenzhen Wu, Yulin Zhong, Sheng Liu, Shanqing Zhang   +11 more
wiley   +1 more source

Orbit determination of space debris using a bi-static radar configuration with a multiple-beam receiver [PDF]

, 2014
In this work the use of a multi-beaming radar system is analyzed and a possible setup of a closed loop system (i.e. from measurement and data acquisition to orbit determination) is described.
Morselli, A., Montebugnoli, S., Bernelli-Zazzera, F., Morselli, A, Di Lizia, P., K. Zarb Adami, A. Magro, Adami, KZ, G. Bianchi, Di Lizia, P, Bianchi, G, Adami, K.Z., E. Salerno, DI LIZIA, PIERLUIGI, R. Armellin, Bianchi, G., MORSELLI, ALESSANDRO, Montebugnoli, S, Zazzera, FB, Magro, A, Salerno, E., Magro, A., Armellin, R, Armellin, R., S. Montebugnoli, BERNELLI ZAZZERA, FRANCO, Salerno, E   +26 more
core  

Amphiphilic Non‐Isocyanate Polyurethane Coatings With Tunable Antifouling and Fouling‐Release Performance: A Log‐Ratio Assessment Framework

Advanced Materials Interfaces, EarlyView.
Amphiphilic non‐isocyanate polyurethane (NIPU) coatings containing reactive hydrophobic poly(dimethylsiloxane) (PDMS) and hydrophilic methoxy poly(ethylene glycol) (MPEG) prepolymers for marine antifouling (AF) and fouling‐release (FR) applications were investigated. The coatings were evaluated with a set of representative marine foulants.
Nastaran Shahzadeh, Shane J. Stafslien, Lyndsi J. VanderWal, John A. Finlay, Peter Allen, Anthony S. Clare, Ivan Hevus, Dean C. Webster   +7 more
wiley   +1 more source

Acceleration of parasitic multistatic radar system using GPGPU [PDF]

, 2011
This dissertation details the implementation of PMR [Parasitic Multistatic Radar] signal processing chain in the GPGPU [General Purpose Graphic Processing Units] platform.
John, Mathew
core   +1 more source