Now showing items 11893-11912 of 21975

• #### Low-frequency radio absorption in Tycho's supernova remnant ﻿

(2019-12-02)
Tycho's SNR is the remnant of the type Ia supernova explosion SN1572. In this work we present new low-frequency radio observations with the LOFAR Low-Band and High-Band Antennae, centred at 58 MHz and 143 MHz, and with an ...
• #### Low-frequency radio spectra of submillimetre galaxies in the Lockman Hole ﻿

(2021-04-19)
We investigate the radio properties of a sample of 53 sources selected at 850 $\mu$m from the SCUBA-2 Cosmology Legacy Survey using new deep, low-frequency radio imaging of the Lockman Hole field from the Low Frequency ...

(2020-09-01)
• #### Low-grade inflammation, diet composition and health : current research evidence and its translation ﻿

(2015-10-14)
The importance of chronic low-grade inflammation in the pathology of numerous age-related chronic conditions is now clear. An unresolved inflammatory response is likely to be involved from the early stages of disease ...
• #### Low-lying dipole response in the relativistic quasiparticle time blocking approximation and its influence on neutron capture cross sections ﻿

(2009-05-15)
We have computed dipole strength distributions for nickel and tin isotopes within the Relativistic Quasiparticle Time Blocking Approximation (RQTBA). These calculations provide a good description of data, including the ...
• #### Low-mass eclipsing binaries in the WFCAM Transit Survey : The persistence of the M-dwarf radius inflation problem ﻿

(2018-06-01)
We present the characterization of five new short-period low-mass eclipsing binaries (LMEBs) from the WFCAM Transit Survey. The analysis was performed by using the photometric WFCAM J-mag data and additional low- and ...
• #### A low-mass neutron flux monitor for the n_TOF facility at CERN ﻿

(2004-09)
A small-mass system has been developed for monitoring the flux of neutrons with energy up to 1 MeV at the new time-of-flight facility at CERN, n_TOF. The monitor is based on a thin Mylar foil with a Li-6 deposit, placed ...
• #### Low-mass Objects in Moving Groups ﻿

(Astronomical Society of the Pacific, 2010)
We present here the kinematic study of part of a 132 target sample of low-mass objects, previously selected by photometric and astrometric criteria as possible members to five young moving groups (MGs): Local Association ...
• #### A low-mass planet candidate orbiting Proxima Centauri at a distance of 1.5 AU ﻿

(2020-01-15)
Our nearest neighbor, Proxima Centauri, hosts a temperate terrestrial planet. We detected in radial velocities evidence of a possible second planet with minimum mass m c sin i c = 5.8 ± 1.9 M ⊕ and orbital period P c = ...
• #### Low-Mass X-ray Binaries and Globular Clusters in Centaurus A ﻿

(2007)
We present results of Hubble Space Telescope and Chandra X-Ray Observatory observations of globular clusters (GCs) and low-mass X-ray binaries (LMXBs) in the central regions of Centaurus A. Out of 440 GC candidates, we ...
• #### Low-mass X-ray binaries and globular clusters streamers and ARCS in NGC 4278 ﻿

(2014-03-01)
We report significant inhomogeneities in the projected two-dimensional spatial distributions of low-mass X-ray binaries (LMXBs) and globular clusters (GCs) of the intermediate mass elliptical galaxy NGC 4278. In the inner ...
• #### Low-metallicity inhibition of type Ia supernovae and galactic and cosmic chemical evolution ﻿

(1998-08-20)
We introduce a metallicity dependence of the Type Ia supernova (SN Ia) rate into the Galactic and cosmic chemical evolution models. In our SN Ia progenitor scenario, the accreting white dwarf (WD) blows a strong wind to ...
• #### Low-Power Neuromorphic Hardware for Signal Processing Applications : A review of architectural and system-level design approaches ﻿

(2019-11-01)
Machine learning has emerged as the dominant tool for implementing complex cognitive tasks that require supervised, unsupervised, and reinforcement learning. While the resulting machines have demonstrated in some cases ...
• #### Low-power, high-linearity transconductor with a high tolerance for process and temperature variations ﻿

(2020-11-18)
A novel scheme for tunable complementary metal–oxide–semiconductor (CMOS) transconductor robust against process and temperature (PT) variations is presented. The proposed configuration is a voltage controlled circuit based ...

(2006)

(2008)
• #### A Low-Profile Beam-Steering Reflectarray with Integrated Leaky-Wave Feed and 2-Bit Phase Resolution for Ka-band SatCom ﻿

(2021-09-15)
A novel reflect array (RA) with ultra-low-profile and 2-bit phase quantization beam-steering ability is presented in this paper. To reduce the profile, a Leaky-wave feed is used to excite the RA with enhanced illumination ...
• #### Low-resolution near-infrared spectroscopic signatures of unresolved ultracool companions to M dwarfs ﻿

(2017-06-01)
We develop a method to identify the spectroscopic signature of unresolved L-dwarf ultracool companions, which compares the spectra of candidates and their associated control stars using spectral ratio differences and ...

(2006)
• #### Low-Speed Aerodynamic Analysis Using Four Different Turbulent Models of Solver of a Wind Turbine Shroud ﻿

(Springer, Cham, 2021-04-30)
This study presents the effect of four different turbulent models of solver on the aerodynamic analysis of a shroud at wind speed below 6 m/s. The converting shroud uses a combination of a cylindrical case and an inverted ...