Results 91 to 100 of about 76,940 (295)

Role of coronal mass ejections in the heliospheric Hale cycle [PDF]

, 2007
[1] The 11-year solar cycle variation in the heliospheric magnetic field strength can be explained by the temporary buildup of closed flux released by coronal mass ejections (CMEs).
Crooker, N. U., Hughes, W. J., Owens, M. J., Schwadron, Nathan A., Spence, Harlan E.   +4 more
core   +1 more source

Effects of Carbon Nanoparticles on Triboelectro‐Induced Surface Defects

Advanced Engineering Materials, EarlyView.
Carbon nanoparticles added to grease modify the electrocontact behavior. The synergy of particle concentration and electric current dominates the surface damage of metals in contact. Electrical surface damage caused by current leakage is a critical challenge in high‐performance applications such as electric vehicle (EV) drivetrains and wind turbine ...
Mohsen Tajedini, Lu Fang, Jacob Bons, Mohammad Humaun Kabir, Evan Johnson, Joe Kosmoski, Hong Liang   +6 more
wiley   +1 more source

Variations of the Vector Magnetic Structures in the Solar Polar Regions Observed by Hinode

The Astrophysical Journal
Using the polar vector magnetic field data observed by Hinode from 2012 to 2021, we study the long-term variations of the magnetic flux, the flux proportion of different polarities, and the magnetic inclination with respect to the local normal in the ...
Shuhong Yang, Chunlan Jin, Qiao Song, Yuzong Zhang, Yin Li, Yijun Hou, Ting Li, Guiping Zhou, Yuanyong Deng, Jingxiu Wang   +9 more
doaj   +1 more source

The clustering of polarity reversals of the geomagnetic field

, 2006
Often in nature the temporal distribution of inhomogeneous stochastic point processes can be modeled as a realization of renewal Poisson processes with a variable rate.
A. Kageyama, A. Vecchio, D. L. Turcotte, D. V. Kent, F. Lepreti, H. K. Moffatt, I. Guerra, J. R. Heirtzler, L. Sorriso-Valvo, P. Harabaglia, P. Veltri, P. L. McFadden, R. Hollerbach, R. T. Merril, S. P. Huestis, T. Rikitake, V. Carbone, W. Feller   +17 more
core   +1 more source

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

Advanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof, Jan Kopačin, Izidor Straus, Raphael Kriegl, Gaia Kravanja, Luka Hribar, Matija Jezeršek, Mikhail Shamonin, Gašper Kokot, Irena Drevenšek‐Olenik   +9 more
wiley   +1 more source

Magnetic field sector structure and origins of solar wind streams in 2012

Journal of Space Weather and Space Climate, 2014
The origins of the solar wind and the interplanetary magnetic field sector structure in the beginning of the magnetic polarity reversal of 24th solar cycle were investigated using the Wilcox Solar Observatory magnetic field measurements and their ...
Shugay Yulia, Slemzin Vladimir, Veselovsky Igor   +2 more
doaj   +1 more source

Integrated Freestanding Single-Crystal Silicon Nanowires: Conductivity and Surface Treatment [PDF]

, 2010
Integrated freestanding single-crystal silicon nanowires with typical dimension of 100 nm × 100 nm × 5 µm are fabricated by conventional 1:1 optical lithography and wet chemical silicon etching.
Blise, Robert, Huang, Minghuang, Lagally, Max, Lee, Chung-Hoon, Ritz, Clark, Ziwisky, Michael   +5 more
core   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

Advanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya, Majed Amini, Mohammad Arjmand, Earl Johan Foster   +3 more
wiley   +1 more source

Nonaqueous Polar Solvents in Reverse Micelle Systems

Chemical Reviews, 2012
Fil: Correa, Nestor Mariano. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet -
Correa, Nestor Mariano, Silber, Juana J., Riter, Ruth E., Levinger, Nancy E.   +3 more
openaire   +3 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source