Results 101 to 110 of about 368,263 (301)
The Light Curve Variations of The Active Binaries With Hot Subdwarf Component [PDF]
arXiv, 2006 We present the light curve variations of the two active binaries with hot subdwarf component. According to the brightness variations outside of the eclipses, the giant components of the systems are chromospherically active stars. The dark and cool active structures on this components cause the variations of the total light of the systems.
arxiv
How to Achieve High Spatial Resolution in Organic Optobioelectronic Devices?
Advanced Materials Interfaces, EarlyView.This study explores how the optoelectronic properties of organic semiconductors impact on the resolution of light‐activated bioelectronic interfaces. Using photovoltage and photocurrent microscopy techniques, the authors show that H2PC/PTCDI heterojunctions enable a resolution down to 6.5 µm due to low carrier mobility along the heterojunction.
Luca Fabbri +9 more
wiley +1 more source
In-field Phasing at the Upgraded GMRT
The Astrophysical JournalIn time-domain radio astronomy with arrays, voltages from individual antennas are added together with proper delay and fringe correction to form the beam in real time.
Sanjay Kudale +4 more
doaj +1 more source
Temporal Variations in the Sun's Rotational Kinetic Energy [PDF]
, 2007 AIM: To study the variation of the angular momentum and the rotational kinetic energy of the Sun, and associated variations in the gravitational multipole moments, on a timescale of the solar cycle. METHOD: Inverting helioseismic rotational splitting data obtained by the Global Oscillation Network Group and by the Michelson Doppler Imager on the Solar ...
arxiv +1 more source
Ultrathin Gold for Robust Multi‐Element Surface Plasmon Resonance Biosensing
Advanced Materials Interfaces, EarlyView.This is a pioneering work where for the first time we applied recently synthesised ultrathin layer of gold for plasmonic biosensing that makes use of multi‐element architectures. This study solves the problem of stability of the multi‐element biosensors as well as demonstrates increased sensitivity achieved by utilising new additions to low‐dimension ...
Vasyl G. Kravets +2 more
wiley +1 more source
The Origin and Significance of the Twenty-Four Solar Terms in China
Contemporary Social Sciences, 2017 The “Twenty-Four Solar Terms” is an integrated knowledge system and functional social practice initiated and developed by ancient Chinese. Appling to their daily lives and agricultural production, based on records of the periodic motions of the sun ...
Xu Wangsheng
doaj +1 more source
Detection of the 128 day radial velocity variations in the supergiant α Persei. Rotational modulations, pulsations, or a planet? [PDF]
, 2012 Aims. In order to search for and study the nature of the low-amplitude and long-periodic radial velocity (RV) variations of massive stars, we have been carrying out a precise RV survey for supergiants that lie near or inside the Cepheid instability strip. Methods.
arxiv +1 more source
Organic Ferroelectric Synaptic Transistors for Neural Image Recognition Networks
Advanced Materials Interfaces, EarlyView.All organic transistors, where both the dielectric and semiconducting layers are polymeric, are developed as electrical synaptic devices. Two copolymers of PVDF as the dielectric layer with large differences in their saturation polarizability and memory window are chosen.
Evan Restuccia +2 more
wiley +1 more source
Design of a hybrid NAR-RBFs neural network for nonlinear dusty plasma system
Alexandria Engineering Journal, 2020 Robust modeling of a multimodal dynamic system is a challenging and fast-growing area of research. In this study, an integrated bi-modal computing paradigm based on Nonlinear Autoregressive Radial Basis Functions (NAR-RBFs) neural network model, a new ...
Ayaz Hussain Bukhari +5 more
doaj
, 2012 Accretion-powered X-ray pulsars exhibit significant variability of the Cyclotron Resonance Scattering Feature (CRSF) centroid energy on pulse-to-pulse timescales, and also on much longer timescales. Two types of spectral variability are observed.
Araya-Góchez +43 more
core +1 more source