Results 111 to 120 of about 1,462 (258)

Stray Light Analysis and Mitigation Perspectives for Next Generation Gravitational-Wave Detectors

Galaxies
The low-frequency sensitivity of gravitational-wave detectors can be degraded by noise arising from the re-coupling of stray light with the main interferometer beam. This review describes the re-coupling mechanism and shows how the experience gained with
Eleonora Polini, Antonino Chiummo
doaj   +1 more source

Single Smooth Waveform Command‐Shaping Control of Overhead Crane Systems Utilizing Two‐Stage Acceleration–Deceleration Profile for Short‐Moving Point‐to‐Point Maneuver

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Modern industrial demand for efficient material handling in confined spaces has driven the need for overhead cranes capable of short‐distance point‐to‐point maneuvers without compromising payload stability. Conventional three‐stage shaper profiles, experiencing acceleration, cruising, and deceleration, become inefficient or infeasible for ...
Mohammed Alfares, Jasem Baroon, Khaled Alhazza   +2 more
wiley   +1 more source

Cryogenic Detection of Gravitational Waves Through Phonon Interactions in Crystalline Materials: A Theoretical Framework and Experimental Proposal

Reports in Advances of Physical Sciences
We propose a novel gravitational wave detection mechanism based on the theoretical interaction between gravitational waves and crystal phonons in modified transition edge sensors (TES).
Vilem Mikula
doaj   +1 more source

Precision control for gravitational wave detectors

, 2022
Gravitational Wave (GW) detectors are state-of-the-art mechatronic systems that can measure spatial distortions in the order of 10"18 meters. Two GW detectors that are currently operational are LIGO and Virgo, both of which have already measured GWs, with the first one being measured in 2015 resulting from the collision of two black holes.
Dael, M. van, Witvoet, G., Swinkels, B., Oomen, T.   +3 more
openaire   +2 more sources

Epistemic diversity and the politics of knowledge in plant disease management: Insights from the Xylella fastidiosa epidemic in southern Italy

PLANTS, PEOPLE, PLANET, EarlyView.
Xylella fastidiosa is a major plant pathogen affecting crops such as grapes, citrus, almonds, and olives, with potentially severe consequences for agricultural production and rural livelihoods worldwide. This paper examines the conflict around the management of the X. fastidiosa outbreak affecting olive trees in southern Italy.
Fabio Gatti, David Ludwig, Phil Macnaghten   +2 more
wiley   +1 more source

Climatology of upper‐tropospheric turbulence: Capabilities and limitations of aircraft reports and ERA5 reanalysis diagnostics

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Based on turbulence diagnostics, airlines are willing to avoid up to 15% of the airspace in order to avoid a fraction of turbulence that takes up about 0.1% of the airspace. This study quantifies these three fractions using turbulence reports from commercial aircraft and ERA5 reanalysis diagnostics, revealing that the low and regionally variable ...
Thorsten Kaluza, Paul D. Williams, David M. Schultz, Timothy P. Banyard   +3 more
wiley   +1 more source

Characteristics of diabatically influenced cyclones with high wind damage potential in Europe

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Diabatic processes contribute, on average, 26% to the intensification of European winter storms, with diabatically driven cyclones exhibiting steeper deepening rates, stronger wind gusts, and increased precipitation. These storms are linked to enhanced warm conveyor belt (WCB) activity and develop in a warmer environment with elevated lower ...
Svenja Christ, Julian Quinting, Joaquim G. Pinto   +2 more
wiley   +1 more source

The non‐hydrostatic option of the ECMWF global weather forecast model: Improvements for kilometre‐scale modelling

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents improvements to the non‐hydrostatic version of the European Centre for Medium‐Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), enabling stable global simulations at 1.4‐km resolution. A systematic comparison with the hydrostatic version at resolutions from 9 to 1.4 km shows that non‐hydrostatic effects emerge in ...
Jozef Vivoda, Inna Polichtchouk, Michail Diamantakis, Filip Váňa   +3 more
wiley   +1 more source

Microphysical chemistry of fog–aerosol interactions over the northwest Atlantic Ocean during Fatima 2022

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Fifteen size‐resolved aerosol samples collected during marine fog, with adjacent ambient observations, show that coarse sea salt aerosol is rapidly grown and lost in the northwest North Atlantic Ocean except when subject to extreme winds. The persistence of fog in the absence of sea salt is determined by available fine‐mode aerosol, where greater ...
Leyla Salehpoor, Leigh R. Crilley, Gianina Giacosa, Lauren Robinson, Rachel Y. W. Chang, David G. Ortiz‐Suslow, Ryan Yamaguchi, Qing Wang, Ed Creegan, Harindra J. S. Fernando, Trevor C. VandenBoer   +10 more
wiley   +1 more source

Adaptive Optics for Aberration Control in Einstein Telescope

Galaxies
Optical aberrations represent a critical issue for gravitational wave interferometers, as they impact the stability and controllability of the experiment.
Maria Cifaldi, Claudia Taranto, Lorenzo Aiello, Diana Lumaca   +3 more
doaj   +1 more source