Results 71 to 80 of about 7,276 (303)
Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes
Advanced Materials, EarlyView.Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti +11 more
wiley +1 more source
A Hierarchical Approach to Resource Allocation in Extensible Multi-Layer LEO-MSS
IEEE Access, 2020 Low earth orbit mobile satellite system (LEO-MSS) is the major system to provide communication support for mobile terminals beyond the coverage of terrestrial communication systems.
Yitao Li, Na Deng, Wuyang Zhou
doaj +1 more source
Advanced Materials, EarlyView.Solvent‐mediated reactivity control of Lewis‐paired dopants enables highly efficient, finely tunable, and stable doping of organic semiconductors. The optimally doped semiconductor films exhibit superior thermoelectric performance and doping stability, feature delocalized polarons along structurally ordered polymer backbones, and outperform ...
Sang Beom Kim +5 more
wiley +1 more source
Advanced Materials, EarlyView.SPARC (spatio‐chimeric, plasma‐based, anisotropic, and shear‐responsive construct) that integrates myogenic and vascular microenvironments within a single construct. The dual‐modulus matrix directs aligned myotube formation and endothelial network development, enabling a vascularized muscle implant that seamlessly anastomoses with host tissue and ...
Su Hyun Jung +6 more
wiley +1 more source
Orbit Precision Analysis of Small Man-Made Space Objects in LEO Based on Radar Tracking Measurements
, 2012 The German Space Operations Center (GSOC) performs collision avoidance for 11 LEO and 2 GEO satellites. Risk detection and maneuver decisions strongly depend on the computed probability of collision that is driven by the anticipated orbit precision of ...
Letsch, Klemens +6 more
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Realization of Reference Frames based on Integrated SLR Measurements to LEO and LAGEOS Satellites [PDF]
, 2019 Numerous active Low Earth Orbiters (LEOs) are equipped with laser retroreflectors used for the Satellite Laser Ranging (SLR) and Global Navigation Satellite System (GNSS) receivers used for positioning.
Arnold, Daniel +5 more
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Satellite NavigationHigh-precision Global Navigation Satellite System (GNSS) orbit and clock products are crucial for precise applications. An evenly distributed global network enables continuous tracking for GNSS satellites, while a regional network may result in tracking ...
Kai Li +4 more
doaj +1 more source
LEO Satellite Constellation for Internet of Things
IEEE Access, 2017 Internet of Things (IoT) is one of the evolutionary directions of the Internet. This paper focuses on the low earth orbit (LEO) satellite constellation-based IoT services for their irreplaceable functions. In many cases, IoT devices are distributed in remote areas (e.g., desert, ocean, and forest) in some special applications, they are placed in some ...
Zhicheng Qu +3 more
openaire +2 more sources
Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics
Advanced Materials, EarlyView.“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair +3 more
wiley +1 more source
DIRECT OPTICAL HIGH SPEED DOWNLINKS AND GROUND STATION NETWORKS FOR SMALL LEO MISSIONS
, 2010 Direct microwave data downlink capacity of today’s earth observation satellites is limited in terms of available spectrum, transmission data rate, and power consumption.
Giggenbach, Dirk +3 more
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