Results 81 to 90 of about 116,704 (219)

The stochastic background: scaling laws and time to detection for pulsar timing arrays [PDF]

, 2013
We derive scaling laws for the signal-to-noise ratio of the optimal cross-correlation statistic, and show that the large power-law increase of the signal-to-noise ratio as a function of the the observation time $T$ that is usually assumed holds only at ...
Ellis, Justin, Jenet, Fredrick, Romano, Joseph D., Siemens, Xavier   +3 more
core   +3 more sources

Performance Enhancement in Hafnium Oxide Through Homogeneous and Heterogeneous co‐Doping Strategies

Advanced Electronic Materials, Volume 12, Issue 7, 6 April 2026.
This article presents a comprehensive co‐doping toolkit to optimize the performance and reliability of fluorite‐structure ferroelectrics like hafnium oxide. By employing homogeneous and heterogeneous co‐doping strategies, precise control over crystallization behavior, polarization hysteresis, and oxygen vacancy distribution is achieved.
Shouzhuo Yang, David Lehninger, Markus Neuber, Amir Pourjafar, Yannick Raffel, Ayse Sünbül, Anant Rastogi, Peter Reinig, Thomas Kämpfe, Konrad Seidel, Maximilian Lederer   +10 more
wiley   +1 more source

Development of a pulsar-based timescale [PDF]

, 2012
Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based timescale that has a precision comparable to the uncertainties in international atomic timescales.
Bailes, M., Bhat, N. D. R., Burke-Spolaor, S., Champion, D., Chaudhary, A., Chen, D., Coles, W., Hobbs, G., Hotan, A., Keith, M. J., Khoo, J., Kocz, J., Levin, Y., Manchester, R. N., Oslowski, S., Preisig, B., Ravi, V., Reynolds, J. E., Sarkissian, J., Shannon, R. M., van Straten, W., Verbiest, J. P. W., Yardley, D., You, X. P.   +23 more
core   +4 more sources

Online circular contrast perimetry: Tablet validation study against desktop test and standard automated perimetry

Optometry and Vision Science, Volume 103, Issue 4, April 2026.
ABSTRACT Purpose To assess correlation, agreement and diagnostic accuracy of a new tablet‐based 24‐degree, 52‐point online circular contrast perimetry application (OCCP), compared to computer‐based OCCP and standard automated perimetry (SAP). Methods Seventy‐five participants (26 controls, 49 glaucomatous) were tested via SAP using Humphrey field ...
Rahman Abdul, Abdul A. Khoder, Angela Gong, Lazar Busija, Simon E. Skalicky   +4 more
wiley   +1 more source

The Potential for Hadronic Particle Acceleration in Galactic Pulsar Wind Nebulae

Universe
Pulsar wind nebulae (PWNe), formed when the wind originating from a rapidly rotating neutron star flows out into its surroundings, have now been observed across the electromagnetic spectrum from the radio to the PeV gamma-ray regime.
Alison M. W. Mitchell, Samuel T. Spencer
doaj   +1 more source

The Interplay Between IL‐6, Hepcidin, and BMPR2 Signalling in Pulmonary Arterial Hypertension: Mechanistic Insights Into Vascular Remodelling

Pulmonary Circulation, Volume 16, Issue 2, June 2026.
ABSTRACT Pulmonary arterial hypertension (PAH) is characterized by excessive pulmonary vasoconstriction and vascular remodelling, with mutations in bone morphogenetic protein receptor type 2 (BMPR2) being the most common genetic alteration associated with the disease.
Quezia K. Toe, Theo Issitt, Gregory J. Quinlan, S. John Wort   +3 more
wiley   +1 more source

Switching to Faricimab or High‐Dose Aflibercept for Neovascular AMD in High‐Demand Patients: Impact on Injection Interval in a Real‐World Cohort

Clinical &Experimental Ophthalmology, EarlyView.
Zachary George Angus, Yin‐Zhi Lee, Sukhpal Singh Sandhu, Robyn Troutbeck, Jonathan Yeoh, Daniel Chiu, Manishka Jayasundera, Jaesser Tan, Sanjeewa Wickremasinghe   +8 more
wiley   +1 more source

The Pointing Error Due To Laser Propagation in Space Plasma for TianQin Gravitational Wave Detection

Space Weather, Volume 24, Issue 4, April 2026.
Abstract TianQin, a space‐borne gravitational wave observatory, is designed to detect gravitational‐wave signals via laser interferometry. As the inhomogeneous space plasma surrounds the inter‐satellite laser links, the propagation of the laser in space plasma can introduce pointing error noise.
Shenwei Zhou, Wei Su, Shiyuan Zhou, Chaofan Li, Jixiang Zhang   +4 more
wiley   +1 more source

FINE STRUCTURE OF ANOMALOUSLY INTENSE PULSES OF PSR J0814+7429 RADIO EMISSION IN THE DECAMETER RANGE

Radio Physics and Radio Astronomy, 2017
Purpose: The fine structure of the anomalously intense pulses of PSR J0814+7429 (В0809+74) has been studied. The pulsar radio emission fine structure is investigated to determine its parameters in the lowest part of spectrum available for groundbased ...
A. O. Skoryk, O. M. Ulyanov, V. V. Zakharenko, A. I. Shevtsova, I. Y. Vasylieva, M. S. Plakhov, I. M. Kravtsov   +6 more
doaj   +1 more source

Red Noise Suppression in Pulsar Timing Array Data Using Adaptive Splines

Universe
Noise in Pulsar Timing Array (PTA) data is commonly modeled as a mixture of white and red noise components. While the former is related to the receivers, and easily characterized by three parameters (EFAC, EQUAD and ECORR), the latter arises from a mix ...
Yi-Qian Qian, Yan Wang, Soumya D. Mohanty   +2 more
doaj   +1 more source