Results 61 to 70 of about 13,607 (215)

A Perspective of Multi‐Reflecting TOF MS

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Time‐of‐flight mass spectrometry (TOF MS) excels in rapid and high‐sensitivity analysis, making it a cornerstone of analytical chemistry. But as sample complexity explodes in omics studies, so does the need for higher resolving power to ensure accurate results.
A. N. Verenchikov, V. V. Makarov, A. V. Vorobyev, S. N. Kirillov   +3 more
wiley   +1 more source

An Improved Wiener Filtration Method for Constructing the Ensemble Pulsar Timescale

The Astrophysical Journal
An improved Wiener filtration (WF) method for constructing the ensemble pulsar timescale (EPT) is proposed to solve the existing problems in the WF algorithm.
Zhehao Zhang, Minglei Tong, Tinggao Yang
doaj   +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

Data‐Independent Acquisition Mass Spectrometry in Tumor Classification and Cancer Biomarker Research

Mass Spectrometry Reviews, EarlyView.
Abstract Cancer treatment is far from optimal also because current classification systems do not reflect the complex molecular status of the tumor and its phenotype in sufficient detail. To construct molecular tumor classifiers, omics tools provide complex molecular data reflecting many aspects from genotype to phenotype.
Jan Simonik, Petr Lapcik, Pavla Bouchalova, Pavel Bouchal   +3 more
wiley   +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

Stochastic Wave Dark Matter with Fermi-LAT γ-Ray Pulsar Timing Array

The Astrophysical Journal Letters
Pulsar timing arrays (PTAs) can detect disturbances in the fabric of spacetime on a galactic scale by monitoring the arrival time of pulses from millisecond pulsars (MSPs).
Hoang Nhan Luu, Tao Liu, Jing Ren, Tom Broadhurst, Ruizhi Yang, Jie-Shuang Wang, Zhen Xie   +6 more
doaj   +1 more source

Pulsar Timing with the Fermi LAT

, 2010
We present an overview of precise pulsar timing using data from the Large Area Telescope (LAT) on Fermi. We describe the analysis techniques including a maximum likelihood method for determining pulse times of arrival from unbinned photon data.
Kerr, Matthew, Parent, Damien, PSC, the Fermi, Ray, Paul S.   +3 more
core   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

Wildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling, Molly C. McDevitt, Jonathan J. Felis, William Crisci, Zachary Pohlen, Ryan Ongtowasruk, Daniel L. Perret, Paul M. Lukacs, James A. Johnson, Metrona Mazonna   +9 more
wiley   +1 more source

Pulsar Cyclic Spectroscopy in the Partial-deconvolution Regime: Benefits and Limitations

The Astrophysical Journal
We explore possible advantages of cyclic spectroscopy for observations of pulsars in instances where full cyclic deconvolution is not possible. We compute cyclic merits and full-deconvolution regime boundaries for pulsars observed by NANOGrav and discuss
Jacob E. Turner, Timothy Dolch, Paul B. Demorest, Ryan S. Lynch, Daniel R. Stinebring, Cody Jessup, Nathaniel Jones, Christopher Scheithauer   +7 more
doaj   +1 more source

Confronting the primordial black hole scenario with the gravitational-wave events detected by LIGO-Virgo

Physics Letters B, 2022
Adopting a binned method, we model-independently reconstruct the mass function of primordial black holes (PBHs) from GWTC-3 and find that such a PBH mass function can be explained by a broad red-tilted power spectrum of curvature perturbations if all the
Zu-Cheng Chen, Chen Yuan, Qing-Guo Huang
doaj   +1 more source