6,009 research outputs found
Research into the feasibility of thin metal and oxide film capacitors Interim scientific report
Feasibility of thin metal and oxide film capacitor
Research into the feasibility of thin metal and oxide film capacitors
Feasibility of thin metal and oxide film capacitor
Sub-picosecond compression by velocity bunching in a photo-injector
We present an experimental evidence of a bunch compression scheme that uses a
traveling wave accelerating structure as a compressor. The bunch length issued
from a laser-driven radio-frequency electron source was compressed by a factor
>3 using an S-band traveling wave structure located immediately downstream from
the electron source. Experimental data are found to be in good agreement with
particle tracking simulations.Comment: 19 pages, 9 figures, submitted to Phys. Rev. Spec. Topics A&
Effects of Deferred Ginning of Cotton on Cotton Fiber Quality as Reflected in Certain Fiber Properties.
8 p
Feeling Connected: Examining the Importance of Human Connection on the Personal Outlook of Social Service Providers Working with the Homeless During the COVID-19 Pandemic
Abstract
This research study explores the lived experiences of social workers and social service providers (collectively referred to as ‘providers’) working with the homeless and homeless-adjacent populations in the early phases of the COVID-19 pandemic. We examine how the pandemic changed the work providers do, and how providers coped with and adapted to these changes. This research utilizes traditional qualitative interviews with a total of twenty providers located in the North-Western United States (NW-US). Key findings from this research indicate providers\u27 outcomes were influenced by the extent of their social connections to community, clients, and coworkers throughout the pandemic. This study confirms earlier research on the importance of social capital in minimizing negative mental health outcomes for providers working through situations that reflect large-scale social crises. This research has potential policy implications for provider networks in the event of similar crises in the future
Millisecond accuracy video display using OpenGL under Linux
To measure people’s reaction times to the nearest millisecond, it is necessary to know exactly when
a stimulus is displayed. This article describes how to display stimuli with millisecond accuracy on a
normal CRT monitor, using a PC running Linux. A simple C program is presented to illustrate how this
may be done within X Windows using the OpenGL rendering system. A test of this system is reported
that demonstrates that stimuli may be consistently displayed with millisecond accuracy. An algorithm
is presented that allows the exact time of stimulus presentation to be deduced, even if there are relatively
large errors in measuring the display time
The Peak Brightness and Spatial Distribution of AGB Stars Near the Nucleus of M32
The bright stellar content near the center of the Local Group elliptical
galaxy M32 is investigated with 0.12 arcsec FWHM H and K images obtained with
the Gemini Mauna Kea telescope. Stars with K = 15.5, which are likely evolving
near the tip of the asymptotic giant branch (AGB), are resolved to within 2
arcsec of the nucleus, and it is concluded that the peak stellar brightness
near the center of M32 is similar to that in the outer regions of the galaxy.
Moreover, the projected density of bright AGB stars follows the visible light
profile to within 2 arcsec of the nucleus, indicating that the brightest stars
are well mixed throughout the galaxy. Thus, there is no evidence for an age
gradient, and the radial variations in spectroscopic indices and ultraviolet
colors that have been detected previously must be due to metallicity and/or
some other parameter. We suggest that either the bright AGB stars formed as
part of a highly uniform and coherent galaxy-wide episode of star formation, or
they originated in a separate system that merged with M32.Comment: 9 pages of text, 3 figures. ApJ (Letters) in pres
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