Results 71 to 80 of about 4,008 (285)
Advanced Materials Technologies, EarlyView.This work highlights the impact of incorporating graphene nanoflakes into precursor inks of MAPbBr3 for inkjet‐printed optoelectronic device applications. A substantial modification of the crystallization dynamics is reported despite miniscule concentrations.
Kenneth Lobo +12 more
wiley +1 more source
The Astrophysical JournalThe evolution of cataclysmic variables (CVs) is driven by period changes ( $\dot{P}$ ), for which the long-venerable consensus is the magnetic braking model (MBM).
Bradley E. Schaefer
doaj +1 more source
, 2012 We continue our study of the physical properties of the recurrent nova T Pyx, focussing on the structure of the ejecta in the nebular stage of expansion during the 2011 outburst.
Aquino, I. De Gennaro +6 more
core +1 more source
RS Ophiuchi — A Recurrent Nova with Twin Jets [PDF]
Symposium - International Astronomical Union, 1988 An analysis of European VLBI data of nova RS Ophiuchi shows the presence of a linear jet-like structure which has a brightness temperature of 107K at 1.7 GHz. This ejection is shown to be two sided and the 1.7 GHz emission is non-thermal. The light curves show the presence of a second, thermal component emerging at higher frequencies at a later epoch.
R. J. Davis +3 more
openaire +1 more source
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
Possible X-Ray Flares in a Recurrent Nova [PDF]
International Astronomical Union Colloquium, 1990 Abstract:The dynamical evolution and nonequilibrium X-ray emission of recurrent nova remnants have been investigated by using a spherically symmetric hydrodynamic code. We assume that the nova ejecta expand into a wind from a red-giant companion. The wind material is blast-shocked, and emits copious X-rays.
Izumi Hachisu, Hiroshi Itoh
openaire +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 Golden Age of Cataclysmic Variables and Related Objects (Old and News)
Acta Polytechnica CTU Proceedings, 2015 In this paper we review cataclysmic variables (CVs) discussing several hot points about the renewing interest of today astrophysics about these sources.
F. Giovannelli, L. Sabau-Graziati
doaj +1 more source
Spectroscopic Results of the Recurrent Nova RS Ophiuchi [PDF]
International Astronomical Union Colloquium, 1990 The recurrent nova RS Ophiuchi has had five outbursts in 1898, 1933, 1958, 1967 and 1985. We present here in brief the spectroscopic results of the 1985 outburst and subsequent quiescence, based on data obtained at the Vainu Bappu Observatory (VBO), Kavalur.
G. C. Anupama, T. P. Prabhu
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