16,185 research outputs found
Monte Carlo direct view factor and generalized radiative heat transfer programs
Computer programs find the direct view factor from one surface segment to another using the Monte carlo technique, and the radioactive-transfer coefficients between surface segments. An advantage of the programs is the great generality of problems treatable and rapidity of solution from problem conception to receipt of results
An investigation of volcanic depressions. Part 1 - Geologic and geophysical features of calderas Progress report
Preferred classification of calderas and volcano- tectonic depressions based on relative amounts of lava and proclastic eject
The Quantasyn, an improved quantum detector
Quantasyn provides absolute measurement of radiation flux in the range 1000 A to 4500 A and into the vacuum ultraviolet. This radiation detector cimbines the high quantum efficiency and inherent linearity of the silicon solar cell with the constant quantum response of the fluorescent organic compound liumogen
The radical Right, realism, and the politics of conservatism in postwar international thought
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of the British International Studies Association. The rise of the radical Right over the last decade has created a situation that demands engagement with the intellectual origins, achievements, and changing worldviews of radical conservative forces. Yet, conservative thought seems to have no distinct place in the theoretical field that has structured debates within the discipline of IR since 1945. This article seeks to explain some of the reasons for this absence. In the first part, we argue that there was in fact a clear strand of radical conservative thought in the early years of the field's development and recover some of these forgotten positions. In the second part, we argue that the near disappearance of those ideas can be traced in part to a process of 'conceptual innovation' through which postwar realist thinkers sought to craft a 'conservative liberalism' that defined the emerging field's theoretical alternatives in ways that excluded radical right-wing positions. Recovering this history challenges some of IR's most enduring narratives about its development, identity, and commitments - particularly the continuing tendency to find its origins in a defining battle between realism and liberalism. It also draws attention to overlooked resources to reflect upon the challenge of the radical Right in contemporary world politics
Start-to-end modelling of a mode-locked optical klystron free electron laser amplifier
A free electron laser (FEL) in a mode-locked optical klystron (MLOK) configuration is modelled using start-to-end simulations that simulate realistic electron beam acceleration and transport before input into a full three-dimensional FEL simulation code. These simulations demonstrate that the MLOK scheme is compatible with the present generation of radiofrequency accelerator designs. A train of few-optical cycle pulses is predicted with peak powers similar to those of the equivalent conventional FEL amplifier. The role of electron beam energy modulation in these results is explained and the limitations of some simulation codes discussed. It is shown how seeding the FEL interaction using a High Harmonic seed laser can improve the coherence properties of the output
Reevaluating the Management of Chronic Temporomandibular Pain Are We Treating PTSD with Debridement and Lavage?
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IVOA Recommendation: An IVOA Standard for Unified Content Descriptors Version 1.1
This document describes the current understanding of the IVOA controlled
vocabulary for describing astronomical data quantities, called Unified Content
Descriptors (UCDs).
The present document defines a new standard (named UCD1+) improving the first
generation of UCDs (hereafter UCD1). The basic idea is to adopt a new syntax
and vocabulary requiring little effort for people to adapt softwares already
using UCD1.
This document also addresses the questions of maintenance and evolution of
the UCD1+. Examples of use cases within the VO, and tools for using UCD1+ are
also described
IVOA Recommendation: The UCD1+ controlled vocabulary Version 1.23
This document describes the list of controlled terms used to build the
Unified Content Descriptors, Version 1+ (UCD1+). The document describing the
UCD1+ can be found at the URL: http://www.ivoa.net/Documents/latest/UCD.html.
This document reviews the structure of the UCD1+ and presents the current
vocabulary
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