2,137,005 research outputs found
QCD, hadrons and beyond
I give a summary of Section E of the sixth edition of the Conference "Quark
confinement and the hadron spectrum". Papers were presented on different
subjects, from spectroscopy, including pentaquarks and hadron structure, to new
physics effects (non commutative field theories, supersymmetry and extra
dimensions) and the problem of color confinement, both in ordinary Yang-Mills
models and in supersymmetric Yang-Mills.Comment: Summary talk of Section E for the Conference "Quark Confinement and
the Hadron Spectrum VI", Villasimius, Cagliari, Italy, September 21-25, 200
Recommended from our members
Summary Report of Session VI
This report gives a brief review of the presentations in Session VI of the Ecloud'02 Workshop and summarizes the major points during the discussions. Some points (e.g., the critical mass phenomenon) are not conclusive and even controversial. But it has been agreed that further investigations are warranted. The topic of Session VI in the Ecloud'02 workshop is ''Discussions of future studies, collaborations and possible solutions.'' Half of the session is devoted to presentations, another half to discussions. This report will focus on the latter. There are six presentations: (1) R. Macek, Possible cures to the e-cloud problem; (2) G. Rumolo, Driving the electron-cloud instability by an electron cooler; (3) U. Iriso Ariz, RF test benches for electron-cloud studies; (4) F. Caspers, Stealth clearing electrodes; (5) F. Ruggiero, Future electron-cloud studies at CERN; and (6) E. Perevedentsev, Beam-beam and transverse impedance model
HEGRA Observations of Galactic Sources
In this talk I will first give a summary of the observations of expected
Galactic TeV gamma-ray sources with the HEGRA CT-Sytem since the Kruger Park
Workshop in 1997. Then I will go into some detail regarding the observations of
Supernova Remnants (SNRs), especially those of Tycho's SNR and of Cas A. The
emphasis will not be on all aspects of these published data. I will rather
review the selection of these observational targets, and discuss some of the
physical implications of the results.Comment: 8 pages, 5 Postscript figures, to appear in "GeV-TeV Astrophysics:
Toward a Major Atmospheric Cherenkov Telescope VI," Snowbird, Utah (August,
1999
THE SPECTROSCOPY OF CRYSTAL DEFECTS - A COMPENDIUM OF DEFECT NOMENCLATURE
The authors bring together tables of current defect nomenclature and a summary of the rules actually practised (rather than idealised schemes) in choosing such labels for signals obtained with a range of spectroscopies. As well as providing a source of reference for the user lost in a maze of labels, the compilation also indicates parallels between similar defect species in very different systems (e.g. ice and quartz), even though the relationships may be far from obvious from the labels. The systems considered are all non-metals, namely ionic crystals (including oxides), silica, semiconductors (e.g. III-V and tetrahedrally coordinated II-VI), valence crystals (e.g. diamond, c-Si, a-Si) and other special hosts like ice and conducting polymers
Guidelines for the Use of Synthetic Fluid Dust Control Palliatives on Unpaved Roads
The amount of small soil particles, dust, lost from typical unpaved roads to fugitive dust is staggering. A 1 km stretch of unpaved road can contribute over 2400 kg of dust to the atmosphere (4.2 ton/mile) in a typical 3-month summer season. Road managers typically manage dust from unpaved roads with various dust-control palliatives, which are effective for up to 1 year. Synthetic fluids are a relatively new category of dust-control palliatives. Unlike the more commonly used dust-control palliatives, such as salts, engineering guidelines do not exist for the application and maintenance of synthetic fluids on unpaved roads. To fill this void, we present through this document guidelines for road design and maintenance, palliative selection, application, and care of synthetic fluid-treated roadways.Midwest Industrial Supply
United States Department of TransportationReport Documentation Page .............................................................................................. ii
Disclaimer ......................................................................................................................... iii
List of Figures .................................................................................................................... vi
Executive Summary............................................................................................................. 1
CHAPTER 1.0 – Introduction............................................................................................... 4
CHAPTER 2.0 – Background.............................................................................................. 6
Measurements of the Effectiveness of Dust Palliatives .....................................................10
CHAPTER 3.0 – Guidelines .............................................................................................. 16
Road Design and Maintenance...........................................................................................16
Palliative Selection..............................................................................................................20
Application .........................................................................................................................22
Areas Requiring Special Attention......................................................................................26
Maintenance .......................................................................................................................27
CHAPTER 4.0 – Summary................................................................................................. 31
CHAPTER 5.0 – References.............................................................................................. 3
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