Results 41 to 50 of about 9,807 (209)

ELF magnetic field receiver: frequency performance and natural signals detection

Revista Elektrón, 2021
This article presents the analog stage analysis of an extremely low frequency (ELF) magnetic field receiver. Details are described about the characterization and modeling of the antenna used, as well as the frequency behavior of the system.
Leonardo Martín Carducci, Ramiro Alfonso, Walter Gustavo Fano   +2 more
doaj   +1 more source

Schumann resonance transients and the search for gravitational waves

, 2018
Schumann resonance transients which propagate around the globe can potentially generate a correlated background in widely separated gravitational wave detectors. We show that due to the distribution of lightning hotspots around the globe these transients
Silagadze, Z. K.
core   +1 more source

Correlated noise in networks of gravitational-wave detectors: subtraction and mitigation [PDF]

, 2014
One of the key science goals of advanced gravitational-wave detectors is to observe a stochastic gravitational-wave background. However, recent work demonstrates that correlated magnetic fields from Schumann resonances can produce correlated strain noise
Christensen, Nelson, Effler, Anamaria, Schofield, Robert M. S., Thrane, Eric   +3 more
core   +2 more sources

Schumann’s resonances: A particular example of a spherical resonant cavity

American Journal of Physics, 2004
The resonances between the Earth as one boundary and the ionosphere as the other, known as Schumann’s resonances, represent an interesting example of a spherical cavity. We consider a simple model in which the boundaries behave as perfect conductors and then take into account the finite conductivity of the boundaries. Numerical results are obtained for
Ciappina, Marcelo Fabián, Febbo, Mariano   +1 more
openaire   +2 more sources

Bounds on Lorentz and CPT Violation from the Earth-Ionosphere Cavity

, 2008
Electromagnetic resonant cavities form the basis of many tests of Lorentz invariance involving photons. The effects of some forms of Lorentz violation scale with cavity size.
A. A. Michelson, A. A. Michelson, A. P. Nickolaenko, B. Heckel, B. J. Rebel, D. F. Phillips, D. M. Mattingly, H. Nguyen, L. R. Hunter, M. Berger, M. D. Messier, Matthew Mewes, V. A. Kostelecky, W. O. Schumann, W. O. Schumann, W. O. Schumann   +15 more
core   +1 more source

Laser-produced continua for absorption spectroscopy in the VUV and XUV [PDF]

, 1980
Recent work has shown that with appropriate targets, laser-produced plasmas provide clean essentially linefree continua suitable for absorption spectroscopy from 40 to 2000 Å.
Ballofet, Breton, Burgess, Cantu, Carroll, Carroll, Codling, Cole, Damany, Esteva, Garton, Mahajan, Mehlman-Balloffet, Mehlman-Balloffet, Mussetto, Wyart   +15 more
core   +1 more source

Vectorlike Confinement at the LHC [PDF]

, 2010
We argue for the plausibility of a broad class of vectorlike confining gauge theories at the TeV scale which interact with the Standard Model predominantly via gauge interactions.
A Belyaev, A Bross, AL Scott, B Holdom, C Amsler, C Kilic, C Kilic, Can Kilic, CT Hill, DD Dietrich, DE Acosta, E Eichten, E Eichten, E Farhi, EM Riordan, F Bergsma, GD Kribs, J Kang, JD Bjorken, JD Bjorken, K Lane, L Susskind, M Bona, M Cirelli, M Golden, MA Luty, MA Luty, ME Peskin, MJ Strassler, N Arkani-Hamed, P Verkerk, PF Smith, PF Smith, R Foadi, Raman Sundrum, S Weinberg, S Weinberg, T Aaltonen, T Aaltonen, T Appelquist, T Gleisberg, T Han, T Yamagata, Takemichi Okui, TK Hemmick, TW Appelquist, VM Abazov, VM Abazov, VM Abazov, VM Abazov, VM Abazov, Z Chacko   +51 more
core   +1 more source

Secularism, Gender and Masculinity in Nineteenth‐Century Cremation in Europe and the USA

Gender &History, EarlyView.
ABSTRACT This essay explores, from transnational perspectives, the early history of modern cremation, which developed in the long nineteenth century with secularist connotations. I argue that the beginnings of modern cremation were shaped by bourgeois men who claimed certain identifiers for themselves in a gendering and Othering way.
Carolin Kosuch
wiley   +1 more source

Investigation of global lightning using Schumann resonances measured by high frequency induction coil magnetometers in the UK [PDF]

, 2013
In June 2012, the British Geological Survey (BGS) Geomagnetism team installed two high frequency (100 Hz) induction coil magnetometers at the Eskdalemuir Observatory, in the Scottish Borders of the United Kingdom. The induction coils permit us to measure
Beggan, Ciaran D., Thomson, Alan
core   +1 more source

Constraining the photon mass via Schumann resonances

Physical Review D, 2022
الفوتون هو النموذج لجسيم عديم الكتلة، وتضع الاختبارات التجريبية الحالية حدودًا عليا شديدة على كتلته. إن التحقق من مثل هذه الكتلة الصغيرة، أو طول موجة كومبتون الكبير بشكل مكافئ، يمثل تحديًا على المستويات المختبرية، ولكن من المحتمل أن تصل الظواهر الكوكبية أو الفيزيائية الفلكية إلى حساسيات أفضل بكثير.
P. C. Malta, J. A. Helayël-Neto
openaire   +2 more sources