Shock-Impacts and Vibrational g-Forces Can Dislodge Bacillus spp. Spores from Spacecraft Surfaces. [PDF]
Microorganisms, 2023 Schuerger AC, Borrell AV.
europepmc +1 more source
Dynamics of Dissipative Cavity Solitons in a Lattice Trap
Laser &Photonics Reviews, EarlyView.This work presents a generalized analytical model elucidating the dynamics of dissipative solitons in dual‐frequency‐pumped Kerr‐nonlinear cavities. The unified framework predicts new phenomena and expounds hitherto unexplained experiments covering hysteresis, Arnold tongues, and existence region of all‐optical dissipative time crystals.
Hossein Taheri +2 more
wiley +1 more source
NExT‐LF: A Novel Operational Modal Analysis Method via Tangential Interpolation
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Operational modal analysis (OMA) is vital for identifying modal parameters under real‐world conditions, yet existing methods often face challenges with noise sensitivity and stability. This study introduces NExT‐LF, a novel method that combines the well‐known Natural Excitation Technique (NExT) with the Loewner Framework (LF). NExT enables the
Gabriele Dessena +3 more
wiley +1 more source
Basic Studies in Space Vehicle Attitude Control Tenth Semiannual Status Report, Period Ending Jun. 1966 [PDF]
Nonlinear optimal control of planet-pointing space vehicle, basic methods for attitude control, and satellite orbit ...
Cannon, R. H., Jr., Flugge-Lotz, I.
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Metals from spacecraft reentry in stratospheric aerosol particles. [PDF]
Proc Natl Acad Sci U S A, 2023 Murphy DM +10 more
europepmc +1 more source
Integration of Physics‐Based and Data‐Driven Approaches for Landslide Susceptibility Assessment
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Rainfall‐triggered landslides pose a significant threat to communities and infrastructure around the world. Various data‐driven and machine learning (ML) based algorithms have been applied to assess landslide susceptibility. However, purely data‐driven methods are affected by issues such as uncertainty in the selection of landslide ...
Yi Han, Shabnam J. Semnani
wiley +1 more source
Rotor systems research aircraft: Fixed-wing simulations results [PDF]
The setup, validation, and results of the Rotor Systems Research Aircraft (RSRA) fixed-wing, moving-base simulation performed in May 1983 are covered. The emphasis of the simulation was to familiarize the pilots with the RSRA's fixed-wing configuration ...
Kufeld, R. M.
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ChemistryOpen, EarlyView.Biochar derived from woody alien vegetation has been used as a support material for proton exchange membrane fuel cells. This study focuses on the prospects of using biochar specifically from alien vegetation as an alternative for carbonaceous support material to convert and store electrochemical energy.
Alunge Gift Sobekwa +4 more
wiley +1 more source
Flight investigation of the VFR and IFR landing approach characteristics and terminal area airspace requirements for a light STOL airplane [PDF]
A flight research program was conducted to determine the terminal area instrument flight capabilities of a light STOL airplane. Simulated (hooded) instrument landing approaches were made using steep single-segment and two-segment glide slopes.
Crane, H. L. +2 more
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Model-based spacecraft and mission design for the evaluation of technology [PDF]
, 2006 In order to meet the future vision of robotic missions, engineers will face intricate mission concepts, new operational approaches, and technologies that have yet to be developed.
Bieber, Ben S. +7 more
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