Results 111 to 120 of about 69,883 (320)
Pulsed Laser Ablation in Liquid: Numerical Evaluation of Laser Fluence
physica status solidi (RRL) – Rapid Research Letters, EarlyView.Pulsed laser ablation in liquid is a very powerful technique that allows to synthesize colloidal solution of nanoparticles (NPs) without waste. Herein, a computational approach that given the experimental parameters and draws the laser ray paths inside the experimental apparatus is developed, the effective fluence on the target surface is evaluated ...
Cristiano Lo Pò +3 more
wiley +1 more source
Evaluation of video evidence of possible ball lightning
Quarterly Journal of the Royal Meteorological Society, EarlyView.We analyze images of possible ball lightning that appeared less than 10 m from a video camera. The objects' velocity and estimated brightness all agree with typical eyewitness accounts of ball lightning. Though there is an alternative explanation that the objects were sparks from a power‐line arc, we describe analytical techniques that assist in ...
K. Stephan, R. Sonnenfeld, J. Bertoloni
wiley +1 more source
Exploring Weak Gravitational Lensing Effects by a Regular Black Hole
Spektra: Jurnal Fisika dan AplikasinyaGravitational lensing is one of the physical consequences of Einstein’s general theory of relativity, which has been observationally confirmed. This work aims to study the weak gravitational lensing scenario where the lens is a spherically symmetric ...
A. K. Durrani, H. S. Ramadhan
doaj +1 more source
Friction Shock Absorbers and Reverse Thrust for Fast Multirotor Landing on High‐Speed Vehicles
Journal of Field Robotics, EarlyView.ABSTRACT Typical landing gears of small uninhabited aerial vehicles (UAV) limit their capability to land on vehicles moving at more than 20–50 km/h due to high drag forces, high pitch angles and potentially high relative horizontal velocities. To enable landing at higher speeds, a combination of lightweight friction shock absorbers and reverse thrust ...
Isaac Tunney +2 more
wiley +1 more source
UniverseWhen radiation from a background source passes through a cloud of cold plasma, diverging lensing occurs if the source and observer are well-aligned. Unlike gravitational lensing, plasma lensing is dispersive, increasing in strength with wavelength.
Adam Rogers
doaj +1 more source
On the Possibility of Determining Hubble's Parameter and the Masses of Galaxies from the Gravitational Lens Effect [PDF]
, 1964 S. Refsdal
openalex +1 more source
Sustainable Development, EarlyView.ABSTRACT The role of Development Finance Institutions (DFIs) in achieving the Sustainable Development Goals (SDGs) is a topic of growing scholarly importance. While existing literature has mapped the thematic scope of this field, a critical diagnosis of its intellectual structure and inherent biases is missing.
Juan Martinez Alvarez +3 more
wiley +1 more source
3C 268.4 -- Evidence for the Presence of a Gravitationally-Lensed Secondary Image [PDF]
, 1976 N. Sanitt
openalex +1 more source
Common purpose advantage: Reviving a managerial theory of the firm?
Strategic Management Journal, EarlyView.Abstract Research Summary What is the most effective way to distribute organizational objectives across managers? While prior work suggests managers should each focus on a single objective, we draw on Barnard's original insights on corporate purpose to identify conditions when managers pursuing the full set of objectives is advantageous.
Rodolphe Durand +1 more
wiley +1 more source
Domain Adaptation in Application to Gravitational Lens Finding
The Astrophysical JournalThe next decade is expected to see a tenfold increase in the number of strong gravitational lenses, driven by new wide-field imaging surveys. To discover these rare objects, efficient automated detection methods need to be developed.
Hanna Parul +3 more
doaj +1 more source