Results 91 to 100 of about 41,145 (313)

WAVES OF RESISTANCE (RADIO ART WITHOUT BORDERS) TONNTA FRIOTAÍOCHTA (EALAÍNE RAIDIÓ GAN TEORAINNEACH - Broadcast version

open access: yes, 2020
Radiophonic work considering how radio helps us with forced isolation and how visible and invisible boundaries can be broken via radio waves as an act of resistance.
Hall, M.
core  

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

open access: yesAdvanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu   +13 more
wiley   +1 more source

Demo 21-11 Radio Waves

open access: yes, 2001
A radio wave system with a wavelength of about 3 meters is used to illustrate the existence and transmission of radio waves. A dipole transmitting antenna is oriented horizontally. A dipole receiving antenna indicates the reception of radio waves by an

core  

BBC Radio 1922-2022: Navigating the Waves of Change [PDF]

open access: yes
Guest Editor’s Introduction.This symposium edition of the Journal of Radio and Audio Media seeks to celebrate BBC Radio’s centenary. We use the title “BBC Radio 1922–2022: Navigating the waves of change” taken from the name of the conference to which the
Coleman, J, Gordon, J
core   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

Magnetohydrodynamic waves in structured atmospheres

open access: yes, 2012
The effect of structuring, in the form of magnetic or density inhomogeneities, on the magnetohydrodynamic (mhd) waves of an infinite plasma is investigated.
Edwin, Patricia Mary
core  

Waves Of Resistance (RADIO ART WITHOUT BORDERS) Tonnta Friotaíochta (EALAÍNE RAIDIÓ GAN TEORAINNEACHA)

open access: yes, 2020
Radiophonic installation work considering how radio helps us with forced isolation and how visible and invisible boundaries can be broken via radio waves as an act of resistance.
Hall, M.
core  

Light waves, radio waves and photons [PDF]

open access: yesPhysics Bulletin, 1960
In 1900 Planck solved the problem of constructing a formula to represent the distribution in energy of the radiation in a uniform temperature enclosure. The formula he obtained seemed to imply that the exchange of energy between the radiation field and the walls of the enclosure must take place in discrete amounts or quanta, the size of the quantum at ...
openaire   +1 more source

Tissue‐Stimulator Platform for Electrically Stimulating Pancreatic β‐Cells for Long‐Term Functional Regulation

open access: yesAdvanced Functional Materials, EarlyView.
We present a tissue‐stimulator platform for seamless electrode integration with pancreatic tissue, applying uniform electrical stimulation through optimized design with biohybrid 3D printing. Advantageous effects of electrical stimulation on β‐cell function were observed, including enhanced calcium signaling, islet morphology, and maturation.
Jihwan Kim   +7 more
wiley   +1 more source

The Twisting of Radio Waves in a Randomly Inhomogeneous Plasma

open access: yesThe Astrophysical Journal
Polarization of electromagnetic waves carries a large amount of information about their astrophysical emitters and the media they passed through, and hence is crucial in various aspects of astronomy.
Ze-Lin Zhang, Ruo-Yu Liu
doaj   +1 more source

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