Results 91 to 100 of about 133,948 (219)

Exploring radio emissions from confirmed exoplanets using SKA

open access: yesFrontiers in Astronomy and Space Sciences
Our understanding of magnetic fields in exoplanets remains limited compared to those within our solar system. Planets with magnetic fields emit radio signals primarily due to the Electron Cyclotron Maser Instability mechanism.
Fatemeh Bagheri   +3 more
doaj   +1 more source

New 20-cm Radio-Continuum Study of the Small Magellanic Cloud: Part I - Images [PDF]

open access: yesSerbian Astronomical Journal, 2011
We present and discuss new high-sensitivity and resolution radio-continuum images of the Small Magellanic Cloud (SMC) at $lambda$=20~cm($u$=1.4~GHz).
Payne J. L.   +6 more
doaj  

Packaging of Macroscopic Material Payloads: Needs, Challenges, Concepts, and Future Directions

open access: yesAdvanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
This review introduces a unified framework that decomposes any macroscopic packaging system into the payload, packaging material, and packaging strategy and combines them into a conceptual packaging equation: packaging strategy = payload + packaging material.
Venkata S. R. Jampani, Manos Anyfantakis
wiley   +1 more source

Adaptation of an IRAM W-Band SIS Receiver to the INAF Sardinia Radio Telescope: A Feasibility Study and Preliminary Tests. [PDF]

open access: yesSensors (Basel), 2023
Ladu A   +8 more
europepmc   +1 more source

Large‐Aperture Polarization‐Independent Broadband Achromatic All‐Dielectric Metalens for Terahertz Focusing

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
A large‐aperture, high focusing efficiency and polarization‐independent THz single‐layer achromatic metalens is reported via discrete multi‐wavelength achromatic design and global optimization algorithm. The fabricated metalens exhibits a largest diameter of 2.21 cm, excellent achromatic performance, extremely high average focusing efficiency (> 46 ...
Xiaoqiang Jiang   +7 more
wiley   +1 more source

DETERMINATION SKY RADIO EMISSION BACKGROUND USING RADIO JOVE TELESCOPE

open access: yesمجلة كلية التربية للبنات, 2019
In This paper, sky radio emission background level associated with radio storm burst for the Sun and Jupiter is determined at frequency (20.1 MHz). The observation data for radio Jove telescope for the Sun and Jupiter radio storm observations data are ...
Dr.Kamal M.Abood Noor M.Ebadi
doaj  

Search for molecular bremsstrahlung radiation signals in Ku band with coincidental operations of radio telescopes with air shower detectors

open access: yesEPJ Web of Conferences, 2013
Microwave radiation from extensive air showers is expected to provide a new technique to observe UHECR. We insatlled and operate radio telescopes in Osaka and at Telescope Array site in Utah, USA.
Fukushima Masaki   +8 more
doaj   +1 more source

Effect of Adatom Energy on the Interfacial and Surface Morphology of Pulsed DC Sputtered Ruthenium Thin Films

open access: yesSurface and Interface Analysis, Volume 58, Issue 5, Page 326-333, May 2026.
ABSTRACT In the present study, we have analyzed the growth profile of ruthenium (Ru) thin films, deposited using pulsed direct current (DC) magnetron sputtering technique, by varying the sputtering voltages in the range of 150–420 V. The grazing incidence X‐ray reflectivity (GIXRR), time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS), and atomic ...
Shruti Gupta   +6 more
wiley   +1 more source

Electrothermal Twisted and Coiled Polymer Artificial Muscles and Their Applications in Soft Robotics

open access: yesSmall Structures, Volume 7, Issue 5, May 2026.
Researchers develop a PE@SPN electrothermal polymer artificial muscle with a parallel‐stranded spiral structure. A temperature self‐sensing‐driven hierarchical closed‐loop fractional order PID (FOPID) control scheme is adopted. A rehabilitation manipulator was designed, and subsequently, a series of experiments are conducted to test the performance of ...
Yali Han   +6 more
wiley   +1 more source

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