Results 41 to 50 of about 86,531 (202)

Magnetic Interaction in Ultra-compact Binary Systems

open access: yes, 2009
This article reviews the current works on ultra-compact double-degenerate binaries in the presence of magnetic interaction, in particular, unipolar induction. The orbital dynamics and evolution of compact white-dwarf pairs are discussed in detail. Models
Alfvéen   +43 more
core   +1 more source

Effect of excited states and applied magnetic fields on the measured hole mobility in an organic semiconductor [PDF]

open access: yes, 2010
Copyright 2010 by the American Physical Society. Article is available at
A. J. Drew   +6 more
core   +1 more source

The Pulsating Pulsar Magnetosphere

open access: yes, 2015
Following the basic principles of a charge separated pulsar magnetosphere \citep{goldreich1969}, we consider the magnetosphere be stationary in space, instead of corotating, and the electric field be uploaded from the potential distribution on the pulsar
Tsui, K. H.
core   +1 more source

Bootstrapping the Coronal Magnetic Field with STEREO: I. Unipolar Potential Field Modeling [PDF]

open access: yes, 2010
We investigate the recently quantified misalignment of $\alpha_{mis} \approx 20^\circ-40^\circ$ between the 3-D geometry of stereoscopically triangulated coronal loops observed with STEREO/EUVI (in four active regions) and theoretical (potential or ...
Anne W. Sandman   +12 more
core   +1 more source

Flip-OFDM for Optical Wireless Communications [PDF]

open access: yes, 2011
We consider two uniploar OFDM techniques for optical wireless communications: asymmetric clipped optical OFDM (ACO-OFDM) and Flip-OFDM. Both techniques can be used to compensate multipath distortion effects in optical wireless channels. However, ACO-OFDM
Fernando, Nirmal   +2 more
core   +3 more sources

Pre-earthquake magnetic pulses [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2015
A semiconductor model of rocks is shown to describe unipolar magnetic pulses, a phenomenon that has been observed prior to earthquakes. These pulses are suspected to be generated deep in the Earth's crust, in and around the hypocentral volume, days or ...
J. Scoville, J. Heraud, F. Freund
doaj   +1 more source

Theory of Unipolar Politics

open access: yesTürkiye Ortadoğu Çalışmaları Dergisi, 2016
Since the collapse of the Soviet Union, the United States has enjoyed unparalleled military power. The international system therefore became unipolar. A quarter-century later, however, we still possess no theory of unipolarity.
Furkan Polat
doaj  

Power quality improvement of unipolar-input-bipolar-output DC transmission system via load power balancing

open access: yesFrontiers in Energy Research
In DC transmission and distribution systems, both unipolar and bipolar transmission modes exist, and DC transformers used in these systems are also available in either unipolar or bipolar configurations.
Zhuan Zhao   +6 more
doaj   +1 more source

Unipolar deviation control algorithm and its application in mine hoist mechanical braking system

open access: yesGong-kuang zidonghua, 2016
A kind of unipolar deviation control algorithm was proposed and applied to mine hoist mechanical braking system. The algorithm can change a feedback control system from no error system to error system, which is beneficial to improve system stability and ...
DENG Shijian   +4 more
doaj   +1 more source

Unipolar and bipolar fatigue in antiferroelectric lead zirconate thin films and evidences for switching-induced charge injection inducing fatigue

open access: yes, 2010
For the first time, we show that unipolar fatigue does occur in antiferroelectric capacitors, confirming the predictions of a previous work [Appl. Phys. Lett., 94, 072901 (2009)].
Lou, X. J., Wang, J.
core   +1 more source

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