6,873 research outputs found
Economic Standards for Pedestrian Areas for Disabled People: Results from Observation Work
1.1.1 The Institute for Transport Studies was invited by the
Transport and Road Research Laboratory to submit a research
proposal, with costs, aimed at establishing suitable "Ergonomic
Standards for Pedestrian Areas for Disabled People". The project
commenced on 1st July, 1986 and was split into two parts, with
part one involving four months' work over the period to 31st
December, 1986 and part two finishing on 30th April, 1988.
1.1.2
The -objectives of the study laid down in the design
brief by the Transport and Road Research Laboratory were:
a) To produce a guide to good practice for the design and
maintenance of footways and pedestrianised areas;
b) To provide, where possible, recommended standards for design
and maintenance.
The good practice guide and the recommended standards were to be
primarily aimed at disabled people and the elderly, but the
requirements of the able-bodied were also to be considered, as
were conflicts between the needs of different groups of user.
The economic implications of implementation and maintenance were
also to be detailed.
(Continues..
Economic Standards for Pedestrian Areas for Disabled People: Results of the Initial and Main Interview
1.1.1
The Institute for Transport Studies was invited by the
Transport and Road Research Laboratory to submit a research
proposal, with costs, aimed at establishing suitable llErgonomic
Standards for Pedestrian Areas for Disabled People". The project
commenced on 1st July, 1986 and was split into two parts, with
part one involving four monthso work over the period to 31st
December, 1986 and part two finishing on 30th April, 1988.
1.1.2
The main objectives of the Study laid down in the design
brief by the Transport and Road Research Laboratory were:
a) To produce a guide to good practice for the design and
maintenance of footways and pedestrianised areas;
b) To provide, where possible, recommended standards for design
and maintenance.
The good practice guide and the recommended standards were to be
primarily aimed at disabled people and the elderly, but the
requirements of the able-bodied were also to be considered, as
were conflicts between the needs of different groups of user.
The economic implications of implementation and maintenance were
also to be detailed
Ergonomic Standards for Pedestrian Areas for Disabled People: Results from Observation Work
1.1.1 The Institute for Transport Studies was invited by the
Transport and Road Research Laboratory to submit a research
proposal, with costs, aimed at establishing suitable "Ergonomic
Standards for Pedestrian Areas for Disabled People". The project
commenced on 1st July, 1986 and was split into two parts, with
part one involving four months' work over the period to 31st
December, 1986 and part two finishing on 30th April, 1988.
1.1.2
The -objectives of the study laid down in the design
brief by the Transport and Road Research Laboratory were:
a) To produce a guide to good practice for the design and
maintenance of footways and pedestrianised areas;
b) To provide, where possible, recommended standards for design
and maintenance.
The good practice guide and the recommended standards were to be
primarily aimed at disabled people and the elderly, but the
requirements of the able-bodied were also to be considered, as
were conflicts between the needs of different groups of user.
The economic implications of implementation and maintenance were
also to be detailed.
(Continues..
Droplet shapes on structured substrates and conformal invariance
We consider the finite-size scaling of equilibrium droplet shapes for fluid
adsorption (at bulk two-phase co-existence) on heterogeneous substrates and
also in wedge geometries in which only a finite domain of the
substrate is completely wet. For three-dimensional systems with short-ranged
forces we use renormalization group ideas to establish that both the shape of
the droplet height and the height-height correlations can be understood from
the conformal invariance of an appropriate operator. This allows us to predict
the explicit scaling form of the droplet height for a number of different
domain shapes. For systems with long-ranged forces, conformal invariance is not
obeyed but the droplet shape is still shown to exhibit strong scaling
behaviour. We argue that droplet formation in heterogeneous wedge geometries
also shows a number of different scaling regimes depending on the range of the
forces. The conformal invariance of the wedge droplet shape for short-ranged
forces is shown explicitly.Comment: 20 pages, 7 figures. (Submitted to J.Phys.:Cond.Mat.
Coupled Fluctuations near Critical Wetting
Recent work on the complete wetting transition has emphasized the role played
by the coupling of fluctuations of the order parameter at the wall and at the
depinning fluid interface. Extending this approach to the wetting transition
itself we predict a novel crossover effect associated with the decoupling of
fluctuations as the temperature is lowered towards the transition temperature
T_W. Using this we are able to reanalyse recent Monte-Carlo simulation studies
and extract a value \omega(T_W)=0.8 at T_W=0.9T_C in very good agreement with
long standing theoretical predictions.Comment: 4 pages, LaTex, 1 postscript figur
Hydrothermal alteration at the Roosevelt hot springs thermal area, Utah: Petrographic characterization of the alteration to 2 kilometers depth
Hydrothermal alteration in drill cuttings from Thermal Power drillhole 14-2, Roosevelt Hot Springs Thermal area, has been studied petrographically. The hole is sited in alluvium approximately 1.6 km southeast of the old Resort and was rotary drilled to a depth of 1866.0 m. The exact hole location is 2310 FNL, 350 FWL, Sec. 2, Twp 27S, Rge 9W, elevation 1908.5 m. Core was extracted from 792.5 to 795.5 m. Thin sections were made from samples 15.2 m intervals of drill cuttings collected at 1.5 or 3.0 m intervals during drilling. Thin sections were made of 1.5 or 3.0 m intervals from 274.3 to 304.8 m, 487.9 to 581.2 m, and 868.7 t o 899.2 m. These intervals were chosen for close spaced sampling on the basis of increases in temperature, porosity, conductivity and acoustic velocity shown in geophysical logs. A total of 153 thin sections of cuttings were made, and an additional 9 sections were made from the core. Depths of thin section samples are listed in the appendix. A visual estimate of the percentage of each rock type was made for each thin section
Multiscale Shannon’s entropy modelling of orientation and distance in steel fiber Micro-Tomography data
This work is concerned with the modelling and analysis of the orientation and distance between steel fibers in X-ray Micro-Tomography (XCT) data. The advantage of combining both orientation and separation in a model is that it helps provide a detailed understanding of how the steel fibers are arranged, which is easy to compare. The developed models are designed to summarise the randomness of the orientation distribution of the steel fibers both locally and across an entire volume based on multiscale entropy. Theoretical modelling, simulation and application to real imaging data are shown here. The theoretical modelling of multiscale entropy for orientation includes a proof showing the final form of the multiscale taken over a linear range of scales. A series of image processing operations are also included to overcome interslice connectivity issues to help derive the statistical descriptions of the orientation distributions of the steel fibers. The results demonstrate that multiscale entropy provides unique insights into both simulated and real imaging data of steel fiber reinforced concrete
An Advanced, Three-Dimensional Plotting Library for Astronomy
We present a new, three-dimensional (3D) plotting library with advanced
features, and support for standard and enhanced display devices. The library -
S2PLOT - is written in C and can be used by C, C++ and FORTRAN programs on
GNU/Linux and Apple/OSX systems. S2PLOT draws objects in a 3D (x,y,z) Cartesian
space and the user interactively controls how this space is rendered at run
time. With a PGPLOT inspired interface, S2PLOT provides astronomers with
elegant techniques for displaying and exploring 3D data sets directly from
their program code, and the potential to use stereoscopic and dome display
devices. The S2PLOT architecture supports dynamic geometry and can be used to
plot time-evolving data sets, such as might be produced by simulation codes. In
this paper, we introduce S2PLOT to the astronomical community, describe its
potential applications, and present some example uses of the library.Comment: 12 pages, 10 eps figures (higher resolution versions available from
http://astronomy.swin.edu.au/s2plot/paperfigures). The S2PLOT library is
available for download from http://astronomy.swin.edu.au/s2plo
Local functional models of critical correlations in thin-films
Recent work on local functional theories of critical inhomogeneous fluids and
Ising-like magnets has shown them to be a potentially exact, or near exact,
description of universal finite-size effects associated with the excess
free-energy and scaling of one-point functions in critical thin films. This
approach is extended to predict the two-point correlation function G in
critical thin-films with symmetric surface fields in arbitrary dimension d. In
d=2 we show there is exact agreement with the predictions of conformal
invariance for the complete spectrum of correlation lengths as well as the
detailed position dependence of the asymptotic decay of G. In d=3 and d>=4 we
present new numerical predictions for the universal finite-size correlation
length and scaling functions determining the structure of G across the
thin-film. Highly accurate analytical closed form expressions for these
universal properties are derived in arbitrary dimension.Comment: 4 pages, 1 postscript figure. Submitted to Phys Rev Let
Late time evolution of brane gas cosmology and compact internal dimensions
We study the late-time behavior of a universe in the framework of brane gas
cosmology. We investigate the evolution of a universe with a gas of
supergravity particles and a gas of branes. Considering the case when different
dimensions are anisotropically wrapped by various branes, we have derived
Friedman-like equations governing the dynamics of wrapped and unwrapped
subvolumes. We point out that the compact internal dimensions are wrapped by
three or higher dimensional branes.Comment: 16 pages, typos, references, comment on the possibility of
stabilizing the internal dimensions with fluxe
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