Results 101 to 110 of about 49,810 (294)
Novae as distance indicators [PDF]
Nova shells are characteristically prolate with equatorial bands and polar caps. Failure to account for the geometry can lead to large errors in expansion parallaxes for individual novae.
Ciardullo, Robin, Ford, Holland C.
core +1 more source
Novas tecnologias, novas sensibilidades
Comunicação & Educação, 2000 O artigo discute as mudanças na cultura contemporânea, advindas do processo de globalização, e como essas mudanças têm suscitado a discussão sobre as crises de identidade, principalmente aquelas calcadas no Estado nacional, evidenciando novas formas de se vivenciar a identidade de pertencimento a um território. Isso se dá ao mesmo tempo em que as novas
openaire +4 more sources
Advanced Materials Technologies, EarlyView.Flexible piezopolymer ultrasound transducers are engineered by tailoring the electrode–piezopolymer interface using metallic, flake‐based, and porous graphene electrodes. Laser‐induced graphene's porous structure enables polymer infiltration, strengthening interfacial coupling and enhancing piezoelectric response and acoustic output.
Spencer Hagen +3 more
wiley +1 more source
A Composite Light Curve Model of the Symbiotic Nova PU Vul (1979)
Open Astronomy, 2012 PU Vul (1979) is a symbiotic nova that shows a long-lasting flat optical peak followed by a slow decline. We made a quasi-evolution model for outbursts on a 0.6 M⊙ white dwarf consisting of a series of static solutions with optically-thin winds.
Kato M., Mikołajewska J., Hachisu I.
doaj +1 more source
On–Off Switchable Micromotors for Use in Steerable Microvehicles
Advanced Robotics Research, EarlyView.Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson +3 more
wiley +1 more source
Astronomy & AstrophysicsSRGt 062340.2-265751, a cataclysmic variable identified by SRG/eROSITA thanks to its significant X-ray variability, remains poorly characterised despite the multi-wavelength follow-up.
Cúneo V. A. +7 more
doaj +1 more source
Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots
Advanced Robotics Research, EarlyView.A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun +3 more
wiley +1 more source
The hybrid Nova Vul 2024 (=V615 Vul)
Astronomy & AstrophysicsContext. Among galactic novae, many remain poorly characterized due to heterogeneous data, observational challenges, or heavy reddening along the Galactic plane.
Valisa P., Munari U., Albanese I.
doaj +1 more source
, 1893 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
Advanced Robotics Research, EarlyView.This work reports on the actuation behavior of CP‐based polypyrrole/PVdF TYs soaked in electrolyte/ionic liquids and woven actuators where such TYs are integrated. These studies are important toward the creation of on‐body applications such as wearable soft robotics, where textiles offer many advantages such as increased force, integrated electrical ...
Carin Backe +4 more
wiley +1 more source