Results 121 to 130 of about 1,581,787 (389)
An overview of Space Communication Artificial Intelligence for Link Evaluation Terminal (SCAILET) Project [PDF]
A software application to assist end-users of the link evaluation terminal (LET) for satellite communications is being developed. This software application incorporates artificial intelligence (AI) techniques and will be deployed as an interface to LET ...
Petrik, Edward J. +3 more
core +1 more source
Applications of QSPR and Machine Learning in Molecular Photonics
Advanced Optical Materials, EarlyView.Quantitative structureproperty relationships (QSPR) and machine learning (ML) are transforming photochemistry by enabling pre‐synthetic screening of photoactive molecules. This review outlines advances in data‐driven discovery of optical materials and functional dyes, identifies effective descriptors and models for photophysical processes, and provides
Andrey A. Buglak +2 more
wiley +1 more source
Determination of Vibrational Population Distribution for the N2+ (1N) Ion Band System from Spacelab 1 [PDF]
Journal of Astronomy and Space Sciences, 1989 The Spacelab 1 data represented the first multiband spectral measurements of the N2+ first negative ion bands system in the thermospheric dayglow, and the first opportunity to make a detailed comparison of the vibrational and rotational distributions ...
Jong Won Eun
doaj
A satellite system for land-mobile communications in Europe [PDF]
There exists a great unsatisified demand for land mobile communications in Europe, particularly in sectors of business activity such as the road transport industry.
Bartholome, P., Rogard, R.
core +1 more source
Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy
Advanced Optical Materials, EarlyView.Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou +4 more
wiley +1 more source
A System Design and Analysis for Satellite Communication Link [PDF]
Journal of Astronomy and Space Sciences, 2000 A satellite RF communication link is analyzed based on a simple fundamental equations by systematic approach in this paper. The number of variables related to a design and analysis of satellite RF link is often a dozen or more, thus it is a tedious and ...
Tae Jin Chung, Jong Won Eun
doaj
Direct Broadcast Satellite: Radio Program [PDF]
NASA is committed to providing technology development that leads to the introduction of new commercial applications for communications satellites. The Direct Broadcast Satellite-Radio (DBS-R) Program is a joint effort between The National Aeronautics and
Hollansworth, James E.
core +1 more source
Advanced Optical Materials, EarlyView.Ambipolar photoelectrodes enable controlled switching between anodic and cathodic photocurrents in response to light and applied potential. This work demonstrates epitaxial self‐assembled vertically aligned NiTiO3–TiO2 nanocomposite thin films with tunable ambipolar behavior.
Ron Fishov +3 more
wiley +1 more source
Recent development and its prospect of satellite communications
Tongxin xuebao, 2015 After analyzing the characteristics of satellite communications,the developing status of communication satellite platform,available frequency resource,as well as the related key techniques are summarized.Through introducing some typical satellite ...
Ke-chu1 YI +3 more
doaj +2 more sources