Results 51 to 60 of about 711,060 (330)

The Accuracy of Frequency Estimation of Structure Vibration under Ambient Excitation: Problems, Causes, and Methods

Buildings
Accurate identification of building structure frequencies forms the basis for damage detection. The structural dynamic response signal, under ambient excitation, can be transformed into a superposition of multiple single-frequency exponentially damped ...
Chang Deng, Jiaqi Wen, Lei Tang, Xin Cai, Feng Peng   +4 more
doaj   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Near-infrared Spectroscopy of the Sun and Solar Analog Star HD 76151: Compiling an Extensive Line List in the Y, J, H, and K Bands

The Astrophysical Journal
Determining the physical nature of a star requires precise knowledge of its stellar atmospheric parameters, including effective temperature, surface gravity, and metallicity. This study presents a new atomic line list covering a broad spectral range (1–2.
Sena Aleyna Şentürk, Timur Şahin, Ferhat Güney, Selçuk Bilir, Mahmut Marışmak   +4 more
doaj   +1 more source

A Possible Way for the Detection and Identification of Dangerous Substances in Ternary Mixtures Using THz Pulsed Spectroscopy

Sensors, 2019
We discuss an effective tool for the detection and identification of substances in ternary mixtures with similar spectral properties using a broadband reflected THz signal. Nowadays, this is an urgent problem; its effective solution is still far off. Two
Vyacheslav A. Trofimov, Svetlana A. Varentsova   +1 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

PyEMILI: A New Generation Computer-aided Spectral Line Identifier

The Astrophysical Journal Supplement Series
Deep high-dispersion spectroscopy of Galactic photoionized gaseous nebulae, mainly planetary nebulae and H ii regions, has revealed numerous emission lines.
Zhijun Tu, Xuan Fang, Robert Williams, Jifeng Liu   +3 more
doaj   +1 more source

The Optical System Design of a Space-Based Wide-Field Infrared Slitless Spectrometer

Photonics
With the increasingly complex space environment, the operational safety of spacecraft faces severe challenges, creating an urgent need to develop efficient and reliable space target detection and identification technologies. Traditional optical detection
Yue Chen, Liang Zhou, Peiquan Chen, Pengkai Dong, Haiyang Zhang, Wenji She   +5 more
doaj   +1 more source

Identification of Vehicle System Dynamics from the Aspect of Interaction between the Steering and the Suspension Systems

Machines, 2022
Steering and suspension systems of a motor vehicle have very important mutual connections that have direct influence on a vehicle’s steerability, stability, comfort and life expectancy.
Danijela Miloradović, Jovanka Lukić, Jasna Glišović, Nenad Miloradović   +3 more
doaj   +1 more source

RC J0311+0507: A Candidate for Superpowerful Radio Galaxies in the Early Universe at Redshift z=4.514

, 2007
A strong emission line at 6703A has been detected in the optical spectrum for the host galaxy (R=23.1) of the radio source RC J0311+0507 (4C+04.11).
A. B. Berlin, A. G. G. M. Tielens, A. I. Kopylov, A. I. Kopylov, A. Loeb, A. Songaila, A. V. Temirova, B. P. Venemans, B. Y. Mills, C. Breuck De, C. Breuck De, C. Breuck De, C. Breuck De, C. Breuck De, E. A. Richards, E. R. Stanway, F. Walter, H. J. A. Rottgering, H. Spinrad, I. Waddington, J. Bicker, J. F. R. Gower, J. J. Condon, J. N. Douglas, J. V. Cunha, K. C. Chambers, M. Lacy, M. Lacy, M. Lacy, N. S. Soboleva, N. S. Soboleva, O. P. Zhelenkova, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, P. J. McCarthy, P. J. S. Williams, R. Pello, S. Dawson, S. Malhotra, S. Rawlings, T. W. B. Muxlow, V. L. Afanasiev, W. G. M. Breugel van, W. M. Goss, W. M. Goss, X. Fan, Yu. N. Parijskij, Yu. N. Parijskij, Yu. N. Parijskij, Yu. N. Parijskij, Yu. N. Pariĭskiĭ   +51 more
core   +1 more source

The Broadband XMM-Newton and NuSTAR X-ray Spectra of Two Ultraluminous X-ray Sources in the Galaxy IC 342 [PDF]

, 2014
We present results for two Ultraluminous X-ray Sources (ULXs), IC 342 X-1 and IC 342 X-2, using two epochs of XMM-Newton and NuSTAR observations separated by $\sim$7 days.
Bachetti, Matteo, Barret, Didier, Boggs, Steven E., Christensen, Finn C., Craig, William W., Fabian, Andrew C., Furst, Felix, Grefenstette, Brian W., Hailey, Charles J., Harrison, Fiona A., Madsen, Kristin K., Miller, Jon M., Ptak, Andrew F., Rana, Vikram, Stern, Daniel, Walton, Dominic J., Webb, Natalie A., Zhang, William W.   +17 more
core   +3 more sources