Results 101 to 110 of about 995,592 (330)

On the remote sensing of oceanic and atmospheric convection in the Greenland Sea by synthetic aperture radar

open access: yes, 2004
In this paper we discuss characteristic properties of radar signatures of oceanic and atmospheric convection features in the Greenland Sea. If the water surface is clean (no surface films or ice coverage), oceanic and atmospheric features can become ...
Alexei Androssov   +30 more
core   +1 more source

From Exciton Dynamics to Cell Fate: A Carbon Dot Based NIR Photocatalytic Platform for Pyroptosis via Self‐Trapped Excitons

open access: yesAdvanced Functional Materials, EarlyView.
A facile and effective method to boost NIR light induced photocatalysis based on nontoxic NIR emissive carbon dots (nir‐CDs) via Self‐trapped excitons, showing that both O2− • and •OH can be generated from nir‐CDs under NIR laser irradiation. Abstract Near‐infrared (NIR) light‐triggered photocatalytic therapy remains a critical challenge in efficient ...
Qingcheng Wang   +8 more
wiley   +1 more source

Experimental Synthetic Aperture Radar with Dynamic Metasurfaces

open access: yes, 2017
We investigate the use of a dynamic metasurface as the transmitting antenna for a synthetic aperture radar (SAR) imaging system. The dynamic metasurface consists of a one-dimensional microstrip waveguide with complementary electric resonator (cELC ...
Boyarsky, Michael   +6 more
core   +2 more sources

High‐Entropy Doped KTiOPO4‐Type Vanadium‐Based Fluorophosphate Cathodes for High‐Energy Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a high‐entropy doped NaV0.95 (Fe, Mn, Ni, Al, Ca)0.05PO4F cathode, which enables the whole utilization of Na ions, enhances the reaction kinetics without carbon coating, and realizes a solid‐solution reaction mechanism with a single‐crystal structure.
Yingkai Hua   +10 more
wiley   +1 more source

Simulation of subsurface imaging for remote sensing and buried object detection from airborne platforms

open access: yesEuropean Journal of Remote Sensing, 2019
This paper addresses the problem of efficient simulations of the signal backscattered from buried structures. The proposed modelling of subsurface soil structure is based on a geologically – and hydrologically-motivated approach by using of real ...
R Kedzierawski   +2 more
doaj   +1 more source

River Run Off Measurement With SAR Along Track Interferometry [PDF]

open access: yes, 2004
The paper summarizes the need for global space borne river run-off measurements. It reports about an airborne SAR experiment aimed to measure the surface velocity of the river Isar in Bavaria / Germany.
Eineder, Michael   +4 more
core  

A Peptide Nucleic Acid‐Functionalized Heterojunction Thin Film Transistor as a Scalable and Reusable Platform for Label‐Free Detection of MicroRNA

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized, label‐free, and enzyme‐free biosensor (miR‐TFT) enables direct electrical detection of microRNA (miRNA) with single‐nucleotide specificity and a detection limit of 0.6 fM. Built on a tri‐channel In2O3/ZnO heterojunction and functionalized with bespoke peptide nucleic acid (PNA) probes, the device is robust, reusable, and compatible with
Wejdan S. Al Ghamdi   +5 more
wiley   +1 more source

A Versatile Processing Chain for Experimental TanDEM-X Product Evaluation [PDF]

open access: yes, 2010
TanDEM-X is a high-resolution interferometric mission with the main goal of providing a global digital elevation model (DEM) of the Earth surface by means of single-pass X-band SAR interferometry.
Krieger, Gerhard   +6 more
core  

Geo-Social Group Queries with Minimum Acquaintance Constraint

open access: yes, 2017
The prosperity of location-based social networking services enables geo-social group queries for group-based activity planning and marketing. This paper proposes a new family of geo-social group queries with minimum acquaintance constraint (GSGQs), which
Hu, Haibo   +4 more
core   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

open access: yesAdvanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li   +8 more
wiley   +1 more source

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