Results 151 to 160 of about 136,601 (340)

Custom large scale integrated circuits for spaceborne SAR processors [PDF]

open access: yes
The application of modern LSI technology to the development of a time-domain azimuth correlator for SAR processing is discussed. General design requirements for azimuth correlators for missions such as SEASAT-A, Venus orbital imaging radar (VOIR), and ...
Tyree, V. C.
core   +1 more source

CuCo‐Layered Double Hydroxide Nanosheets Grown on Hierarchical Carbonized Wood as Bifunctional Electrode for Supercapacitor and Hydrogen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
The N/P co‐doped carbonized wood (NPCW) with open channels is used as the carrier, and in situ uniformly grown copper nanoparticles (Cu NPs) as nucleation centers to induce the vertical growth of CuCo‐LDH nanosheets along the substrate, forming a “carbon‐metal‐LDH” tertiary conductive network, which realizes the synergistic enhancement of high ...
Hewei Hou   +6 more
wiley   +1 more source

System Concepts for Bi- and Multi-Static SAR Missions [PDF]

open access: yes, 2003
The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track ...
Fiedler, Hauke   +4 more
core  

Polydopamine Nanodots Ameliorate Inflammatory Bowel Disease by Restoring Redox Homeostasis and Intestinal Microenvironment

open access: yesAdvanced Science, EarlyView.
A novel melanin‐based therapeutic composed of ultrasmall polydopamine nanodots is employed as an efficient oral formulation for the targeted treatment of inflammatory bowel disease. The potential therapeutic mechanism of polydopamine nanodots mainly involves the elimination of excessive oxidative stress, the reduction of ROS‐mediated proinflammatory ...
Zhen Ding   +11 more
wiley   +1 more source

Array Radar Three-Dimensional Forward-Looking Imaging Algorithm Based on Two-Dimensional Super-Resolution

open access: yesSensors
Radar imaging is a technology that uses radar systems to generate target images. It transmits radio waves, receives the signal reflected back by the target, and realizes imaging by analyzing the target’s position, shape, and motion information. The three-
Jinke Dai   +3 more
doaj   +1 more source

Carbon Catalyst Supports for Pt‐Based Polymer Electrolyte Membrane Fuel Cells: Porosity, Graphitization, and Chemical Modifications

open access: yesAdvanced Science, EarlyView.
This review explores recent advancements in understanding the influence of carbon support properties on the cathode performance of proton exchange membrane fuel cells. It proposes a set of properties deemed critical for the development of next‐generation carbon supports for the oxygen reduction reaction in fuel cells.
Camille Roiron   +5 more
wiley   +1 more source

Joint Transmit-receive Beam Design of FDA-MIMO Dual-function Radar-communication Systems for Radio-frequency Stealth

open access: yesLeida xuebao
Efficient Radio-Frequency (RF) stealth is crucial for Dual-Function Radar-Communication (DFRC) systems that detect radar stealth and con vert communication transmission.
Haozheng WU   +2 more
doaj   +1 more source

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