Results 21 to 30 of about 940,927 (266)

An electrically switchable wideband metamaterial absorber based on graphene at P band

open access: yesOpen Physics, 2021
Graphene has the capability of dynamically tuning its conductivity through gate voltage. Based on this fact, an electrically switchable wideband metamaterial absorber at low frequencies is presented and investigated in this paper.
Wang Liansheng   +4 more
doaj   +1 more source

Breath of Life: The Respiratory Vagal Stimulation Model of Contemplative Activity

open access: yesFrontiers in Human Neuroscience, 2018
Contemplative practices, such as meditation and yoga, are increasingly popular among the general public and as topics of research. Beneficial effects associated with these practices have been found on physical health, mental health and cognitive ...
Roderik J. S. Gerritsen   +3 more
doaj   +1 more source

The ABoVE L-band and P-band airborne synthetic aperture radar surveys [PDF]

open access: yesEarth System Science Data
Permafrost-affected ecosystems of the Arctic–boreal zone in northwestern North America are undergoing profound transformation due to rapid climate change.
C. E. Miller   +44 more
doaj   +1 more source

Beyond Kagome: p‐Bands in Kagome Metals

open access: yesAdvanced Quantum Technologies
Abstract Recent studies on quantum materials where transition‐metal atoms give rise to ‐bands typical of kagome metals are reviewed. Using examples from several material families – , FeGe, , and – it is argued that ‐bands contributed by elements beyond the kagome network play a crucial role in the electronic instabilities, including ...
Alexander A. Tsirlin, Ece Uykur
openaire   +2 more sources

Analysis of Using the Parabolic Antenna as the Passive Calibrator for P-Band Spaceborne SAR Radiometric Calibration

open access: yesRemote Sensing, 2021
The P-band spaceborne SAR system faces the problem of a lack of available reference targets for radiometric calibration. Traditional artificial passive calibrators such as trihedral corner reflectors may be hard to be adopted to P-band SAR calibration ...
Shaoyan Du   +5 more
doaj   +1 more source

Developing a 160 kW continuous wave circulator for the P-band high-frequency system of the Wuhan light source

open access: yesHe jishu
BackgroundSolid-state amplifiers of synchrotron radiation high-frequency cavity equipment may sustain unrecoverable damage due to the excessive reflected power resulting from load detuning, a high-power circulator is used to guide the reflected power to ...
XIAO Chengcheng   +5 more
doaj   +1 more source

Perceptual Sensitivity and Response to Strong Stimuli Are Related

open access: yesFrontiers in Psychology, 2017
To shed new light on the long-standing debate about the (in)dependence of sensitivity to weak stimuli and overreactivity to strong stimuli, we examined the relation between these tendencies within the neurobehavioral framework of the Predictive and ...
Anna C. Bolders   +5 more
doaj   +1 more source

Spin Nernst effect in a p-band semimetal InBi

open access: yesNew Journal of Physics, 2020
Since spin currents can be generated, detected, and manipulated via the spin Hall effect (SHE), the design of strong SHE materials has become a focus in the field of spintronics.
Yang Zhang   +7 more
doaj   +1 more source

P-band Polarimetric Ice Sounder: Concept and First Results [PDF]

open access: yesIGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
ESA has assigned the Technical University of Denmark to develop an airborne P-band ice sounding radar demonstrator. The intention is to obtain a better understanding of the electromagnetic properties of the Antarctic ice sheet at P-band and to test novel ice sounding techniques in preparation for a potential spaceborne ice sounding radar.
Jørgen Dall   +9 more
openaire   +1 more source

Design of n-i-p and p-i-n Sb2Se3 solar cells: role of band alignment

open access: yesJPhys Energy, 2023
Investigations into novel device architectures and interfaces that enhance charge transport and collection are necessary to increase the power conversion efficiency (PCE) of antimony selenide (Sb _2 Se _3 ) solar cells, which have shown great promise as ...
Marwa S Salem   +4 more
doaj   +1 more source

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