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Single walled carbon nanotubes with Pd ohmic contacts and lengths ranging from several microns down to 10 nm are investigated by electron transport experiments and theory. The mean free path (mfp) for acoustic phonon scattering is estimated…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Ali Javey , Jing Guo , Magnus Paulsson , Qian Wang , David Mann , Mark Lundstrom , Hongjie Dai

We examine the long-term history of the optical spectrum of the extremely variable Active Galactic Nucleus (AGN) MKN 110. By combining various archival data with new data, we cover an unprecedented long period of $\sim$30 years (1987 -…

Astrophysics of Galaxies · Physics 2022-12-14 D. Homan , A. Lawrence , M. Ward , A. Bruce , H. Landt , C. MacLeod , M. Elvis , B. Wilkes , J. P. Huchra , B. M. Peterson

Construction of silicon neutron interferometers requires a perfect crystal silicon ingot (5 cm to 30 cm long) be machined such that Bragg diffracting "blades" protrude from a common base. Leaving the interferometer blades connected to the…

The Long Baseline Neutrino Experiment (LBNE) will utilize a neutrino beamline facility located at Fermilab to carry out a compelling research program in neutrino physics. The facility will aim a beam of neutrinos toward a detector placed at…

Accelerator Physics · Physics 2013-01-30 R. Andrews , A. Z. Chen , S. C. Childress , C. D. Moore , V. Papadimitriou , M. R. Campbell

We present the first large scale high angular resolution survey of ionized nitrogen in the Galactic Plane through emission of its two fine structure transitions ([NII]) at 122 $\mu$m and 205 $\mu$m. The observations were largely obtained…

Astrophysics of Galaxies · Physics 2015-12-09 Paul F. Goldsmith , Umut A. Yıldız , William D. Langer , Jorge L. Pineda

The giant elliptical galaxy NGC 1316 (Fornax A) is a well-studied member of the Fornax Cluster and a prolific producer of Type Ia supernovae, having hosted four observed events since 1980. Here we present detailed optical and near-infrared…

Evidence was previously reported for an 8 MeV neutrino line associated with SN 1987A based on an analysis of 997 events recorded in the Kamiokande-II detector on the day of the supernova. That claimed line, however, occurred at the peak of…

High Energy Astrophysical Phenomena · Physics 2021-08-11 R. Ehrlich

The HANARO ex-core neutron irradiation facility was developed for various applications in the boron neutron capture therapy (BNCT) field, and its characteristics have been investigated. In order to obtain a sufficient thermal neutron flux…

Medical Physics · Physics 2015-06-26 Myong-Seop Kim , Byung-Chul Lee , Sung-Yul Hwang , Heonil Kim , Byung-Jin Jun

A design study of a horizontal neutron reflectometer adapted to the general baseline of the long pulse European Spallation Source (ESS) is presented. The instrument layout comprises solutions for the neutron guide, high-resolution pulse…

Instrumentation and Detectors · Physics 2015-06-17 D. Nekrassov , M. Trapp , K. Lieutenant , J. -F. Moulin , M. Strobl , R. Steitz

Knowledge of the neutrino flux produced by the Neutrinos at the Main Injector (NuMI) beamline is essential to the neutrino oscillation and neutrino interaction measurements of the MINERvA, MINOS+, NOvA and MicroBooNE experiments at Fermi…

The Oak Ridge National Laboratory STS Project will enhance the Spallation Neutron Source by adding a new neutron source. The upgrade includes a 30% increase in beam energy and a 50% boost in beam current, doubling the accelerator's power…

Accelerator Physics · Physics 2026-01-12 V. Chernenok , S. Cheban , D. J Harding , V. Kashikhin , T. Strauss , B. Szabo , M. Allitt , L. Boyd

We report a flare on the M9 dwarf DENIS 104814.7-395606.1, whose mass places it directly at the hydrogen burning limit. The event was observed in a spectral sequence during 1.3 hours. Line shifts to bluer wavelengths were detected in H…

Astrophysics · Physics 2009-11-10 B. Fuhrmeister , J. H. M. M. Schmitt

Low dimensional materials provide the possibility of improved thermoelectric performance due to the additional length scale degree of freedom for engineering their electronic and thermal properties. As a result of suppressed phonon…

Mesoscale and Nanoscale Physics · Physics 2010-06-23 Neophytos Neophytou , Martin Wagner , Hans Kosina , Siegfried Selberherr

Most of the classical approaches to straight line detection only deal with a binary edge image and need to use 2D interpolation operation. This paper proposes a new transform method figuratively named as funnel transform which can…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 QianRu Wei , DaZheng Feng , WeiXing Zheng

Here we investigate the kinematics of the part of the broad line region (BLR) in active galactic nuclei (AGNs) emitting H$\beta$ and H$\alpha$ emission lines. We explore the widths and asymmetries of the broad H$\beta$ and H$\alpha$…

Astrophysics of Galaxies · Physics 2022-08-24 Nemanja Rakić

For the first time the linewidth of Flux-Flow Oscillator has been calculated by direct computer simulation of the sine-Gordon equation with noise. Nearly perfect agreement of the numerical results with the formula derived in [Phys. Rev. B,…

Superconductivity · Physics 2009-11-13 A. L. Pankratov

A novel high-fan-in differential superconductor neuron structure designed for ultra-high-performance Spiking Neural Network (SNN) accelerators is presented. Utilizing a high-fan-in neuron structure allows us to design SNN accelerators with…

In November 2020, A0535+26 underwent one of its brightest outbursts, reaching nearly 12 Crab in X-ray flux. Observed by \textit{Insight-HXMT}, \textit{NuSTAR}, \textit{NICER}, and \textit{AstroSat}, this event provided valuable insights…

High Energy Astrophysical Phenomena · Physics 2025-01-30 Ashwin Devaraj , Biswajit Paul , Varun Bhalerao , Dipanjan Mukherjee

Far-infrared [C ii] 158 micron, [O i] 145 micron and [O i] 63 micron fine structure emission line fluxes were measured from archival Infrared Space Observatory Long Wavelength Spectrometer spectra of 46 extragalactic sources, with 28…

Astrophysics of Galaxies · Physics 2015-05-18 M. Vasta , M. J. Barlow , S. Viti , J. A. Yates , T. A. Bell