Results 41 to 50 of about 605 (176)

X-Ray Pulsar Period Dynamic Estimation: A Model Based on the Interlayer Phase Difference of the Fast Folding Algorithm

The Astrophysical Journal
To further improve the accuracy and speed of real-time dynamic estimation of X-ray pulsar periods, this paper proposes a pulsar period estimation model based on the interlayer phase difference (IPD) of the fast folding algorithm (FFA) and the weighted Z ^
Tianhao Xie, Peiling Cui, Xiaolin Ning, Xin Ma   +3 more
doaj   +1 more source

Strong-Field Gravity Tests with the Double Pulsar

Physical Review X, 2021
Continued timing observations of the double pulsar PSR J0737–3039A/B, which consists of two active radio pulsars (A and B) that orbit each other with a period of 2.45 h in a mildly eccentric (e=0.088) binary system, have led to large improvements in the ...
M. Kramer, I. H. Stairs, R. N. Manchester, N. Wex, A. T. Deller, W. A. Coles, M. Ali, M. Burgay, F. Camilo, I. Cognard, T. Damour, G. Desvignes, R. D. Ferdman, P. C. C. Freire, S. Grondin, L. Guillemot, G. B. Hobbs, G. Janssen, R. Karuppusamy, D. R. Lorimer, A. G. Lyne, J. W. McKee, M. McLaughlin, L. E. Münch, B. B. P. Perera, N. Pol, A. Possenti, J. Sarkissian, B. W. Stappers, G. Theureau   +29 more
doaj   +1 more source

Long‐term passive heat acclimation enhances maximal oxygen consumption via haematological and cardiac adaptation in endurance runners

The Journal of Physiology, EarlyView.
Abstract Figure Legend Endurance‐trained runners completed a 5‐week hot‐water‐immersion (HWI) intervention (≥40°C, 45 min, five sessions per week) and a training‐matched control period in a cross‐over design. HWI induced a 33 g increase in haemoglobin mass (Hbmass) and a 10 mL expansion in left‐ventricular end‐diastolic volume (LVEDV), resulting in a 2.
Elliott J. Jenkins, Joseph A. Killick, Owain Zerilli, Andrew J. M. Douglas, Liam Corr, Michael G. Hughes, Joshua C. Tremblay, Mike Stembridge   +7 more
wiley   +1 more source

The FAST Galactic Plane Pulsar Snapshot Survey. IX. Timing Three Binary Pulsars with Wide Orbits and Low Orbital Eccentricities

The Astrophysical Journal
Current pulsar timing models face challenges when applied to binary pulsars with wide orbits and low orbital eccentricities. The conventional Damour–Deruelle ( DD ) model accurately characterizes the orbits of such systems, but it suffers from strong ...
Z. L. Yang, J. L. Han, W. Q. Su, C. Wang, J. P. Yuan, T. Wang, Yi Yan, J. Xu, W. C. Jing, P. F. Wang, N. N. Cai, D. J. Zhou, X. J. Chen, D. Zhao   +13 more
doaj   +1 more source

Time delay estimation method of X-ray pulsar observed profile based on the optimal frequency band

Acta Physica Sinica, 2016
In order to improve the time delay estimation accuracy of the observed profile in the X-ray pulsar based navigation, the spectral characteristics of the observed profile of X-ray pulsar and the drawback of the classical Taylor fast Fourier transform (FFT) time delay estimation method are analyzed. It is found that when estimating the time delay, we can
null Fang Hai-Yan, null Liu Bing, null Li Xiao-Ping, null Sun Hai-Feng, null Xue Meng-Fan, null Shen Li-Rong, null Zhu Jin-Peng   +6 more
openaire   +1 more source

Soybean Inositol Polyphosphate 5‐Phosphatase 8 Confers Salt Tolerance by Reducing Sodium Influx Through Inositol 1,4,5‐Trisphosphate Signalling

Plant, Cell &Environment, Volume 49, Issue 7, Page 4420-4434, July 2026.
ABSTRACT Evidence suggests that the metabolism of inositol and its derivatives may be involved in various biological processes including salt tolerance, but there has been limited understanding. Ectopic expression of Gs5PTase8, an inositol polyphosphate 5‐phosphatase cloned from wild soybean (Glycine soja), significantly enhanced salt tolerance in ...
Qi Jia, Yuan Chen, Defeng Kong, Hanyu Fan, Song Sun, Yuhang Liu, Jiahui Fu, Man‐Wah Li, Fuk‐Ling Wong, Qinghua Li, Kangjing Liang, Hon‐Ming Lam, Wen‐Xiong Lin   +12 more
wiley   +1 more source

Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing

The Astrophysical Journal
We present a new method to combine multimass equilibrium dynamical models and pulsar timing data to constrain the mass distribution and remnant populations of Milky Way globular clusters (GCs).
Peter J. Smith, Vincent Hénault-Brunet, Nolan Dickson, Mark Gieles, Holger Baumgardt   +4 more
doaj   +1 more source

Search for an Isotropic Gravitational-wave Background with the Parkes Pulsar Timing Array

The Astrophysical Journal Letters, 2023
Pulsar timing arrays aim to detect nanohertz-frequency gravitational waves (GWs). A background of GWs modulates pulsar arrival times and manifests as a stochastic process, common to all pulsars, with a signature spatial correlation.
Daniel J. Reardon, Andrew Zic, Ryan M. Shannon, George B. Hobbs, Matthew Bailes, Valentina Di Marco, Agastya Kapur, Axl F. Rogers, Eric Thrane, Jacob Askew, N. D. Ramesh Bhat, Andrew Cameron, Małgorzata Curyło, William A. Coles, Shi Dai, Boris Goncharov, Matthew Kerr, Atharva Kulkarni, Yuri Levin, Marcus E. Lower, Richard N. Manchester, Rami Mandow, Matthew T. Miles, Rowina S. Nathan, Stefan Osłowski, Christopher J. Russell, Renée Spiewak, Songbo Zhang, Xing-Jiang Zhu   +28 more
doaj   +1 more source

Research on establishing a joint time-scale of pulsar time and atomic time based on a wavelet analysis method

Monthly Notices of the Royal Astronomical Society
ABSTRACT Pulsar time has different physical mechanisms from atomic time, and these two time-scales are complementary in terms of stability performance. The joint timekeeping of pulsar and atomic time is currently an important application direction.
Xingzhi Zhu, Zhehao Zhang, Chengshi Zhao, Bian Li, Minglei Tong, Yuping Gao, Tinggao Yang   +6 more
openaire   +1 more source

Tuning the Geometric and Electronic Structures in PtMn/SiO2 Catalysts via Oxygen Plasma Treatment for Enhanced Propane Dehydrogenation

Carbon and Hydrogen, Volume 28, Issue 2, Page 184-195, June 2026.
Oxygen plasma treatment promotes Pt dispersion, reducing the average Pt particle size of PtMn catalyst from 2.7 to 1.2 nm, and increases the electron cloud density of Pt. The optimized catalyst exhibits excellent mass‐normalized activity (171 molC3H8·gPt−1·h−1) and an ultralow deactivation rate constant, outperforming most reported Pt‐based catalysts ...
Wulin Yan, Ming Li, Hao Wang, Limin Zhang, Yaowen Gu, Guanghui Zhang, Xinwen Guo   +6 more
wiley   +1 more source