7,132 research outputs found
Classical integrability of the O(N) nonlinear Sigma model on a half-line
The classical integrability the O(N) nonlinear sigma model on a half-line is
examined, and the existence of an infinity of conserved charges in involution
is established for the free boundary condition. For the case N=3 other possible
boundary conditions are considered briefly.Comment: 12 Pages. Latex file (process twice
On the perturbative expansion of boundary reflection factors of the supersymmetric sinh-Gordon model
The supersymmetric sinh-Gordon model on a half-line with integrable boundary
conditions is considered perturbatively to verify conjectured exact reflection
factors to one loop order. Propagators for the boson and fermion fields
restricted to a half-line contain several novel features and are developed as
prerequisites for the calculations.Comment: 19 pages, 2 figure
The Glasgow sustainable urban drainage system management project: Case studies (Belvidere hospital and Celtic FC stadium areas)
The Glasgow Sustainable Urban Drainage System (SUDS) Management Project satisfies the first phase
of the Glasgow Surface Water Management Project. This is Glasgow City Council’s contribution to the
Transformation of Rural and Urban Spatial Structure (TRUST) project, one of the European Union’s (EU)
interregional (INTERREG IIIB) funded research projects. The remit of this EU project comprises also
other representative regions in Europe. The project shows also how SUDS can contribute to the overall
catchment dynamics of cities such as Glasgow, ultimately relieving stress on the current predominantly
combined sewer system. Fifty-seven sites within 46 areas of Glasgow were identified for investigation. A
detailed soil chemistry analysis, a preliminary SUDS feasibility assessment and a desk study relating to
historical planning issues that may be relevant for subsequent future development and regeneration options
were undertaken. Detailed design and management guidelines were then drafted for selected representative
demonstration areas (Belvidere Hospital and Celtic FC Stadium Areas) of high public and property
developers interest, and education value. A combination of infiltration trenches or swales with ponds
or underground storage were the most likely SUDS options for the majority of the demonstration areas.
Soil contamination issues were considered when selecting SUDS because heavy metals such as lead and
zinc can cause environmental health problems
The Glasgow sustainable urban drainage system management project: Case studies (Belvidere hospital and Celtic FC stadium areas)
The Glasgow Sustainable Urban Drainage System (SUDS) Management Project satisfies the first phase
of the Glasgow Surface Water Management Project. This is Glasgow City Council’s contribution to the
Transformation of Rural and Urban Spatial Structure (TRUST) project, one of the European Union’s (EU)
interregional (INTERREG IIIB) funded research projects. The remit of this EU project comprises also
other representative regions in Europe. The project shows also how SUDS can contribute to the overall
catchment dynamics of cities such as Glasgow, ultimately relieving stress on the current predominantly
combined sewer system. Fifty-seven sites within 46 areas of Glasgow were identified for investigation. A
detailed soil chemistry analysis, a preliminary SUDS feasibility assessment and a desk study relating to
historical planning issues that may be relevant for subsequent future development and regeneration options
were undertaken. Detailed design and management guidelines were then drafted for selected representative
demonstration areas (Belvidere Hospital and Celtic FC Stadium Areas) of high public and property
developers interest, and education value. A combination of infiltration trenches or swales with ponds
or underground storage were the most likely SUDS options for the majority of the demonstration areas.
Soil contamination issues were considered when selecting SUDS because heavy metals such as lead and
zinc can cause environmental health problems
The sine-Gordon model with integrable defects revisited
Application of our algebraic approach to Liouville integrable defects is
proposed for the sine-Gordon model. Integrability of the model is ensured by
the underlying classical r-matrix algebra. The first local integrals of motion
are identified together with the corresponding Lax pairs. Continuity conditions
imposed on the time components of the entailed Lax pairs give rise to the
sewing conditions on the defect point consistent with Liouville integrability.Comment: 24 pages Latex. Minor modifications, added comment
Free Field Realization of Vertex Operators for Level Two Modules of
Free field relization of vertex operators for lvel two modules of
is shown through the free field relization of the modules
given by Idzumi in Ref.[4,5]. We constructed types I and II vertex operators
when the spin of the addociated evaluation modules is 1/2 and typ II's for the
spin 1.Comment: 15 pages, to appear in J.Phys.A:Math and Genera
On a_2^(1) Reflection Matrices and Affine Toda Theories
We construct new non-diagonal solutions to the boundary Yang-Baxter-Equation
corresponding to a two-dimensional field theory with U_q(a_2^(1)) quantum
affine symmetry on a half-line. The requirements of boundary unitarity and
boundary crossing symmetry are then used to find overall scalar factors which
lead to consistent reflection matrices. Using the boundary bootstrap equations
we also compute the reflection factors for scalar bound states (breathers).
These breathers are expected to be identified with the fundamental quantum
particles in a_2^(1) affine Toda field theory and we therefore obtain a
conjecture for the affine Toda reflection factors. We compare these factors
with known classical results and discuss their duality properties and their
connections with particular boundary conditions.Comment: 34 pages, 4 figures, Latex2e, mistake in App. A corrected, some
references adde
Contemplating a New Model for Air Force Aerospace Medical Technician Skills Sustainment Training
Two decades ago, Aerospace Medical Technicians received robust skills sustainment training through exposure to multifaceted patient treatment environments. Available training environments included inpatient care, outpatient care, and emergency services. This diverse training environment made possible through large operating budgets and an extraordinary infrastructure could not last. Today (after five separate base closure and realignment initiatives), medical funding and infrastructure is but a shadow of what it once was. Budget constraints and the rising cost of healthcare have necessitated a purposeful movement away from inpatient and emergency care, toward outpatient and preventative medicine. Although changes in Air Force health care delivery may be necessary, the closure of inpatient units and emergency service departments around the Air Force has significantly impacted the Air Force\u27s ability to train medical professionals and paraprofessionals for operations in a deployed setting, especially in the area of medical skills sustainment training. This research attempts to provide an alternate model for aerospace medical skills sustainment training that will assist students and trainers in overcoming the training limitations realized in a training environment plagued by budgetary constraints and the near complete loss of inpatient and emergency services
- …