Results 101 to 110 of about 92,936 (299)

Probing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007-2009) [PDF]

open access: yes, 2008
During the International Polar Year (IPY), one area of great interest is co-coordinated, multi-instrument probing of the ionosphere at high latitudes. This region is important not only for the applications that rely upon our understanding of it, but also
Freeman, M.   +26 more
core   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Space-based radiometric imaging [PDF]

open access: yes, 1982
Issued as Final report, Project no.
Newton, Joe Max
core  

Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics

open access: yesAdvanced Materials, EarlyView.
Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova   +10 more
wiley   +1 more source

Science program for an imaging radar receiving station in Alaska. Report of the science working group [PDF]

open access: yes, 1983
It is argued that there would be broad scientific benefit in establishing in Alaska an imaging radar receiving station that would collect data from the European Space Agency's Remote Sensing Satellite, ERS-1. This station would acquire imagery of the ice

core   +1 more source

The photoelectron emission microscopy station at SRRC [PDF]

open access: yes, 2003
A full-field imaging microscopy station based on photoelectron emission was established at the elliptical undulator (EPU) beamline at SRRC. The PEEM optics adapted in this System is an OMICRN FOCUS-IS PEEM with LN$_2$ cooling. Initial tests using mercury
Y.-J. Hsu   +4 more
core   +1 more source

3D Converted Wave Reverse Time Migration Imaging

open access: yesSeismica
We describe a newly developed method for recovering high-resolution images of seismic discontinuities, such as subducting slabs, in 3D. Our method makes use of converted S→P or P→S waves observed by dense arrays of seismometers to infer the locations ...
Leah Langer   +3 more
doaj   +1 more source

E. coli Extracellular Matrix: A Tunable Composite With Hierarchical Structure

open access: yesAdvanced Materials, EarlyView.
The complex composite‐like mechanical behavior of E. coli biofilm matrix is the result of a synergic contribution of the rigid curli and swelling pEtN‐cellulose, and emerges from specific ratio and assembly conditions. The interactions between the two fibers govern biofilm hydration and characteristic wrinkling patterns, providing crucial insights for ...
Macarena Siri   +7 more
wiley   +1 more source

On-Ground Calibration of DESIS: DLR´s Earth Sensing Imaging Spectrometer for the International Space Station ISS [PDF]

open access: yes, 2018
On-ground calibration approach and selected results for DESIS have been presented. The DLR Earth Sensing Imaging Spectrometer (DESIS) as a new space-based hyperspectral instrument has built and finally calibrated by DLR and is ready for launch to ...
Reulke, Ralf   +29 more
core   +1 more source

Sub‐Diffraction Nanolithography of Halide Perovskite via Reversible All‐Optical Crystallization–Decomposition

open access: yesAdvanced Materials, EarlyView.
A reversible, all‐optical modulation strategy enables resist‐free, sub‐diffraction nanolithography of halide perovskite films. Leveraging 800 nm fs laser‐induced crystallization and 365 nm laser driven decomposition, reconfigurable patterning achieves feature sizes down to 93.5 nm. This chemistry‐free approach offers dynamic control over optoelectronic
Zhengfen Wan   +4 more
wiley   +1 more source

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