Results 121 to 130 of about 282,290 (351)

Multiple Spark Plugs Approach for Pulsed Plasma Thrusters Assisting Resilient Proliferated Space Systems

open access: yesAerospace
Propulsion systems aboard small satellites assisting dynamic space missions at the proximity of deep space natural objects may face challenges in long-term non-serviceable operations, achieving thrust vector direction control, and adapting to severe ...
Andrei Shumeiko   +3 more
doaj   +1 more source

Satellite Capabilities Mapping – Utilizing Small Satellites

open access: yes, 2010
The cost and schedule advantages small satellites have over larger legacy systems have been studied for years, but there has been very little experimentation performed to determine whether small satellites can actually deliver any of the capabilities of a larger spacecraft.
Grigsby, David, Black, Jonathan
openaire   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Nano and Micro satellites as the Pillar of the “New Space” Paradigm

open access: yesHavacılık ve Uzay Teknolojileri Dergisi, 2020
Six decades after the launch of the first satellite in 1957, space business and space technologies are taking a new turn: From big to small, from primarily government to extensively private sector and from a few players to profusely many.
Fuat İnce
doaj  

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Using High‐Resolution Satellite Imagery and Deep Learning to Track Dynamic Seasonality in Small Water Bodies [PDF]

open access: gold, 2023
Andrew Mullen   +19 more
openalex   +1 more source

Planetary nomenclature [PDF]

open access: yes
In fiscal 1986, names were chosen for prominent features on the five previously known Uranian satellites and for features on the largest of the 10 satellites discovered by Voyager 2.
Masursky, Harold, Strobell, M. E.
core   +1 more source

Small Satellite Payload Calibration

open access: yes, 2023
This project focused on developing an efficient and cost-effective method for calibrating optical payloads that streamlines setup, measurement, and analysis time while staying within a SmallSat budget. To develop and test the concept, the team identified key calibration parameters and performed a demonstration on a surrogate payload using spatial ...
Scott, Deron   +7 more
openaire   +1 more source

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