Results 71 to 80 of about 33,326 (261)

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Features of onboard telemetry systems design for small satellites

Технологія та конструювання в електронній апаратурі, 2003
As a result of analyzing the main technical requirements for onboard telemetry systems of modern microsatellites, certain features of designing telemetry systems for small satellites were identified and systematized.
K. V. Kolesnyk, V. V. Piskorzh
doaj  

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

High-Efficiency Broadband Planar Array Antenna with Suspended Microstrip Slab for X-Band SAR Onboard Small Satellites. [PDF]

Sensors (Basel), 2021
Anim K, Danuor P, Park SO, Jung YB.
europepmc   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Dual-Purpose Star Tracker and Space Debris Detector: Miniature Instrument for Small Satellites

Journal of Sensor and Actuator Networks
This paper presents the conception, design and real miniature instrument implementation of a dual-purpose sensor for small satellites that can act as a star tracker and space debris detector. In the previous research work, the authors conceived, designed
Beltran N. Arribas, João G. Maia, João P. Castanheira, Joel Filho, Rui Melicio, Hugo Onderwater, Paulo Gordo, R. Policarpo Duarte, André R. R. Silva   +8 more
doaj   +1 more source

X-Band Dual Circularly Polarized Patch Antenna With High Gain for Small Satellites

IEEE Access, 2019
This paper presents an X-band circularly polarized patch antenna with a simulated high gain of 12.5 dBi and a simulated side-lobe-level of below -20 dB, within the bandwidth of 5.2%.
Paolo Squadrito, Shuai Zhang, Gert Fraolund Pedersen   +2 more
doaj   +1 more source

Hybrid Metal–Carbon Ink for Printed Stretchable Temperature Sensors

Advanced Engineering Materials, EarlyView.
We prepare conductive inks for temperature sensing with silver flakes and carbon or graphite flakes in a silicone elastomer matrix. Silver dominates the temperature‐dependent conductivity, while the carbon filler network ensures the stability of the conductive pathways and retains function under strain.
Makara Lay, Xue Bai, Thomas Kister, Tobias Kraus   +3 more
wiley   +1 more source

Estimation of Propellant Mass Requirements for Thruster-Driven Momentum Exchange Tether Deployer Vehicles

Aerospace
This article outlines a general approach to determining propellant mass requirements for operating a momentum exchange tether (MET), the rotation of which is driven by traditional thrusters for rideshare payload deployments.
Ben Campbell, Lawrence Dale Thomas
doaj   +1 more source

DEM Generation from Multi Satellite PlanetScope Imagery

Remote Sensing, 2018
Planet Labs have recently launched a large constellation of small satellites (3U cubesats) capable of imaging the whole Earth landmass everyday. These small satellites capture multiple images of an area on consecutive days or sometimes on the same day ...
Sajid Ghuffar
doaj   +1 more source