Results 11 to 20 of about 3,964,850 (349)

Wide-band optical field concentrator for low-index core propagation [PDF]

Journal of the European Optical Society-Rapid Publications, 2006
We propose a novel chirped structure consisting of a low index polymer core bounded by modulated multilayer claddings, to realize an optical field concentrator with virtually zero propagation losses in a wide spectral range, independent of wave ...
de Ceglia D., De Sario M., D’Orazio A., Petruzzelli V., Vincenti M.A., Prudenzano F., Scalora M.   +6 more
doaj   +1 more source

Proton core behaviour inside magnetic field switchbacks [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT During Parker Solar Probe’s first two orbits, there are widespread observations of rapid magnetic field reversals known as switchbacks. These switchbacks are extensively found in the near-Sun solar wind, appear to occur in patches, and have possible links to various phenomena such as magnetic reconnection near the solar surface.
Thomas Woolley, Lorenzo Matteini, Timothy S Horbury, Stuart D Bale, Lloyd D Woodham, Ronan Laker, Benjamin L Alterman, John W Bonnell, Anthony W Case, Justin C Kasper, Kristopher G Klein, Mihailo M Martinović, Michael Stevens   +12 more
openaire   +5 more sources

Magnetic Fields from Filaments to Cores [PDF]

, 2018
How important is the magnetic (B-) field when compared to gravity and turbulence in the star-formation process? Does its importance depend on scale and location? We summarize submm dust polarization observations towards the large filamentary infrared dark cloud G34 and towards a dense core in the high-mass star-forming region W51.
Koch, P. M., Tang, Y.-W., Chapman, N.L., Duarte Cabral Peretto, Ana, Ho, P.T.P., Novak, G., Peretto, Nicolas, Su, Y.-N., Takakuwa, S., Yen, H.-W.   +9 more
openaire   +2 more sources

Geomagnetic Jerks: Rapid Core Field Variations and Core Dynamics

Space Science Reviews, 2010
The secular variation of the core field is generally characterized by smooth variations, sometimes interrupted by abrupt changes, named geomagnetic jerks. The origin of these events, observed and investigated for over three decades, is still not fully understood.
Mandea, M., Holme, R., Pais, A., Pinheiro, K., Jackson, A., Verbanac, G.   +5 more
openaire   +6 more sources

GRACE—Gravity Data for Understanding the Deep Earth’s Interior

Remote Sensing, 2020
While the main causes of the temporal gravity variations observed by the Gravity Recovery and Climate Experiment (GRACE) space mission result from water mass redistributions occurring at the surface of the Earth in response to climatic and anthropogenic ...
Mioara Mandea, Véronique Dehant, Anny Cazenave   +2 more
doaj   +1 more source

Development of core competencies for field veterinary epidemiology training programs

Frontiers in Veterinary Science, 2023
A workforce with the adequate field epidemiology knowledge, skills and abilities is the foundation of a strong and effective animal health system. Field epidemiology training is conducted in several countries to meet the increased global demand for such ...
Julio Pinto, Julio Pinto, Ravi Bandara Dissanayake, Navneet Dhand, Navneet Dhand, Cristina Rojo-Gimeno, Laura Cristina Falzon, Holy Akwar, Rianatou Bada Alambeji, Daniel Beltran-Alcrudo, David Mario Castellan, Karoon Chanachai, Javier Guitian, Angela Hilmers, Fairouz Larfaoui, Leo Loth, Paolo Motta, Harentsoaniaina Rasamoelina, Stephanie Salyer, Sean Shadomy, Sean Shadomy, Cécile Squarzoni, Innocent Rwego, Carmen Varela Santos, Kachen Wongsathapornchai, Caryl Lockhart, Sam Okuthe, Yaghouba Kane, Jeffrey Gilbert, Baba Soumare, Madhur Dhingra, Keith Sumption, Thanawat Tiensin   +32 more
doaj   +1 more source

SCUBA polarisation observations of the magnetic fields in the prestellar cores L1498 and L1517B [PDF]

, 2006
We have mapped linearly polarized dust emission from the prestellar cores L1498 and L1517B with the James Clerk Maxwell Telescope (JCMT) using the Submillimetre Common User Bolometer Array (SCUBA) and its polarimeter SCUBAPOL at a wavelength of 850um. We
D. Ward-Thompson, J. M. Kirk, R. M. Crutcher, Ward-Thompson   +3 more
core   +2 more sources

Geomagnetic Core Field Secular Variation Models

Space Science Reviews, 2009
We analyse models describing time changes of the Earth’s core magnetic field (secular variation) covering the historical period (several centuries) and the more recent satellite era (previous decade), and we illustrate how both the information contained in the data and the a priori information (regularisation) affect the result of the ill-posed ...
Gillet, N., Lesur, V., Olsen, N.
openaire   +6 more sources

Validation and Application of Two New Core Stability Tests in Professional Football

Applied Sciences, 2020
The purpose of the first study was to validate two newly proposed core stability tests; Prone Plank test (PPT) and Closed Kinetic Chain test (CCT), for evaluating the strength of the body core.
Saioa Etxaleku, Mikel Izquierdo, Eder Bikandi, Jaime García Arroyo, Iñigo Sarriegi, Iosu Sesma, Igor Setuain   +6 more
doaj   +1 more source

The effect of the neutron star crust on the evolution of a core magnetic field [PDF]

, 1999
We consider the expulsion of the magnetic field from the super-conducting core of a neutron star and its subsequent decay in the crust. Particular attention is paid to a strong feedback of the distortion of magnetic field lines in the crust on the ...
Alpar, Alpar, Baym, Bhattacharya, Bhattacharya, Blandford, Chau, D. Konenkov, Ding, Friedman, Geppert, Goldreich, Haberl, Hartman, Harvey, Itoh, Jahan Miri, Konar, Konar, Miralles, Muslimov, Page, Thompson, Thompson, U. Geppert, Urpin, Urpin, Urpin, Urpin, van Riper, Wiebicke, Yakovlev   +31 more
core   +2 more sources