Results 121 to 130 of about 15,075 (298)

Precision control for gravitational wave detectors

open access: yes, 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   +3 more
openaire   +2 more sources

Shaking Table Tests and Numerical Analysis of Rocking Vault‐Shaped Segmental Piers Equipped With an Annular Double Sliding System

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT To enhance the structural robustness of bridges, a rocking arch‐shaped segmental pier with a double sliding system was previously proposed as a low‐cost solution to protect bridges in developing countries. The rocking behavior is triggered by halting the sliding motion, which increases the horizontal load‐bearing capacity and limits ...
Shengming Feng   +6 more
wiley   +1 more source

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

open access: yesHeat Transfer, EarlyView.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source

All-sky search for long-duration gravitational wave transients in the first Advanced LIGO observing run

open access: yes, 2018
We present the results of a search for long-duration gravitational wave transients in the data of the LIGO Hanford and LIGO Livingston second generation detectors between $ \newcommand{\OOneStart}{{\rm 12 ~September ~2015}} \newcommand{\OOneStartShort}{{
B.P. Abbott et al., 조희석, 강궁원
core  

Gravitational wave detector with cosmological reach

open access: yesPhysical Review D, 2015
Twenty years ago, construction began on the Laser Interferometer Gravitational-wave Observatory (LIGO). Advanced LIGO, with a factor of ten better design sensitivity than Initial LIGO, will begin taking data this year, and should soon make detections a monthly occurrence. While Advanced LIGO promises to make first detections of gravitational waves from
Dwyer, Sheila Elizabeth   +5 more
openaire   +4 more sources

Sono‐Anatomy and Histology of the Deep Fasciae in the Upper Limb

open access: yesJournal of Ultrasound in Medicine, EarlyView.
The deep fascia of the upper limb represents a pivotal anatomical structure essential for effective force transmission, dynamic compartmentalization and musculoskeletal stability. Its composition (rich in type I collagen fibers) enables both mechanical resilience and functional adaptability, crucial for the upper limb's complex movements.
Carmelo Pirri   +7 more
wiley   +1 more source

Evaluating Sleep Apnea: In‐Lab Versus at‐Home Recording Time and the Impact of Positional Disease

open access: yesThe Laryngoscope, EarlyView.
We evaluated the minimum recording time needed for in‐lab polysomnography (PSG1) and home sleep apnea test Type 3 portable monitoring (HSAT) to accurately reflect the full‐night apnea–hypopnea index (AHI) in patients with suspected obstructive sleep apnea (OSA).
Raquel Chartuni Pereira Teixeira   +1 more
wiley   +1 more source

Exploring the sensitivity of next generation gravitational wave detectors

open access: yes, 2017
The second-generation of gravitational-wave detectors are just startingoperation, and have already yielding their first detections. Research is nowconcentrated on how to maximize the scientific potential of gravitationalwaveastronomy.
김정리   +5 more
core  

Advanced Suspension Techniques in Interferometric Gravitational Wave Detectors: An Overview

open access: yesGalaxies
Interferometric gravitational wave (GW) detectors are sophisticated instruments that require suspended mirrors to be effectively isolated from all forms of vibrations and noise. This isolation is crucial for enabling the detectors to function efficiently
Vishnu G. Nair
doaj   +1 more source

Home - About - Disclaimer - Privacy