146 research outputs found
If the tide is rising, who pays for the ark?
Two common goals of this meeting are to arrest the effects of sea level rise and other phenomena caused by Greenhouse Gases from anthropogenic sources ("GHG",) and to mitigate the effects. The fundamental questions are: (1) how to get there and (2) who should shoulder the cost? Given Washington gridlock, states, NGO's and citizens such as the Inupiat of the Village of Kivalina have turned to the courts for solutions. Current actions for public nuisance seek (1) to reduce and eventually eliminate GHG emissions, (2) damages for health effects and property damage—plus hundreds of millions in dollars spent to prepare for the foregoing. The U.S. Court of Appeals just upheld the action against the generators of some 10% of the CO2 emissions from human activities in the U.S., clearing the way for a trial featuring the state of the art scientific linkage between GHG production and the effects of global warming. Climate change impacts on coastal regions manifest most prominently through sea level rise and its impacts: beach erosion, loss of private and public structures, relocation costs, loss of use and accompanying revenues (e.g. tourism), beach replenishment and armoring costs, impacts of flooding during high water events, and loss of tax base. Other effects may include enhanced storm frequency and intensity, increased insurance risks and costs, impacts to water supplies, fires and biological changes through invasions or local extinctions (IPCC AR4, 2007; Okmyung, et al., 2007). There is an increasing urgency for federal and state governments to focus on the local and regional levels and consistently provide the information, tools, and methods necessary for adaptation. Calls for action at all levels acknowledge that a viable response must engage federal, state and local expertise, perspectives, and resources in a coordinated and collaborative effort. A workshop held in December 2000 on coastal inundation and sea level rise proposes a shared framework that can help guide where investments should be made to enable states and local governments to assess impacts and initiate adaptation strategies over the next decade. (PDF contains 5 pages
Location, Location, Location Should Be Environment, Environment, Environment : A Market-Based Tool to Simplify Environmental Considerations in Residential Real Estate
The most important rule of real estate (location, location, location) should be upgraded to the three E’s: environment, environment, environment. What we value in real estate is the natural and human environment of a site and its structures. A home is typically an American’s most significant asset; thus, environmental issues should be of interest, primarily because the effects of environmental degradation can cause devaluation while simultaneously imposing substantial expenses (such as cleanup, health care, and relocation) on the population. The real costs of ignoring the environment are life-threatening health and safety issues, including lung damage and cancer resulting from radon exposure, (which the EPA estimates kills 20,000 people per year), and indoor air pollution (from Volatile Organic Compounds (VOCs), for example), the effects of mold and polluted water, and heart and lung conditions related to poor air quality, result in thousands of premature deaths each year.
Environmental issues include both anthropogenic sources and naturally occurring phenomena. The problem is that, for some buyers, sellers and professionals, obtaining accurate data is difficult. Many know there are issues, but they are unable to get straight-forward, manageable information. Some do not want to know of the issues, and others are overwhelmed. Complicating the matter for everyone is the reality that the laws related to disclosure and duties to prevent or mitigate harm vary significantly by jurisdiction, creating unpredictable rights and duties that range from caveat emptor to duties of reasonable inquiry. Consistency between jurisdictions is of greater importance than ever because of the mobility of the population. Even with guidance and reports from the EPA, the tools available to the majority of individuals seeking to make this most significant purchase, the real estate market does not address the health and safety risks caused by environmental degradation.
Given this deficit in information, we propose a voluntary checklist to alert consumers, owners, and professionals of environmental issues that can impose significant costs for health care, remediation, and property devaluation. Knowledge of the issues should reduce disputes, and, over time, consumers may demand properties that are safer, with economic variables that are better quantified. That in turn should encourage sellers, builders and producers to satisfy the expectations of the consuming public with greener and more sustainable housing
Manufacturing knowledge sharing in PLM: a progression towards the use of heavy weight ontologies
The drive to maximize the potential benefits of decision support systems continues to increase as industry is continually driven by the competitive needs of operating in dynamic global environments. The more extensive information support tools which are becoming available in the PLM world appear to have great potential but require a substantial overhead in their configuration. However, sharing information and knowledge in cross-disciplinary teams and across system and company boundaries is not straightforward and there is a clear need for more effective frameworks for information and knowledge sharing if new product development processes are to have effective ICT support. This paper presents a view of the current status of manufacturing information sharing using light-weight ontologies and goes on to discuss the potential for heavyweight ontological engineering approaches such as the Process Specification Language (PSL). It explains why such languages are needed and how they provide an important step towards process knowledge sharing. Machining examples are used to illustrate how PSL provides a rigorous basis for process knowledge sharing and subsequently to illustrate the value of linking foundation and domain ontologies to provide a basis for multi-context knowledge sharing
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Modelling and simulation of flame cutting for steel plates with solid phases and melting
The goal of this work is to describe in detail a quasi-stationary state model which can be used to deeply understand the distribution of the heat in a steel plate and the changes in the solid phases of the steel and into liquid phase during the flame cutting process. We use a 3D-model similar to previous works from Thiebaud [1] and expand it to consider phases changes, in particular, austenite formation and melting of material. Experimental data is used to validate the model and study its capabilities. Parameters defining the shape of the volumetric heat source and the power density are calibrated to achieve good agreement with temperature measurements. Similarities and differences with other models from literature are discussed
Pennsylvania Folklife Vol. 27, No. 2
• Gentlemen of the Road: Outlaw-Heroes of Early Pennsylvania in Life & Legend • Patent Medicine in Pennsylvania Before 1906: A History Through Advertising • Raising a Tobacco Shed • Bicentennial Exhibitions and Publications in Germany • Work and Work Attitudes: Folk-Cultural Questionnaire No. 50https://digitalcommons.ursinus.edu/pafolklifemag/1076/thumbnail.jp
Towards the ontology-based consolidation of production-centric standards
Production-Âcentric
international
standards
are
intended
to
serve
as
an
important
route
towards
information
sharing
across
manufacturing
decision
support
systems.
As
a
consequence
of
textual-Âbased
definitions
of
concepts
acknowledged
within
these
standards,
their
inability
to
fully
interoperate
becomes
an
issue
especially
since
a
multitude
of
standards
are
required
to
cover
the
needs
of
extensive
domains
such
as
manufacturing
industries.
To
help
reinforce
the
current
understanding
to
support
the
consolidation
of
production-Âcentric
standards
for
improved
information
sharing,
this
article
explores
the
specification
of
well-defined
core
concepts
which
can
be
used
as
a
basis
for
capturing
tailored
semantic
definitions.
The
potentials
of
two
heavyweight
ontological
approaches,
notably
Common
Logic
(CL)
and
the
Web
Ontology
Language
(OWL)
as
candidates
for
the
task,
are
also
exposed.
An
important
finding
regarding
these
two
methods
is
that
while
an
OWL-Âbased
approach
shows
capabilities
towards
applications
which
may
require
flexible
hierarchies
of
concepts,
a
CL-Âbased
method
represents
a
favoured
contender
for
scoped
and
facts-Âdriven
manufacturing
applications
A review of approaches to supply chain communications: from manufacturing to construction
With the increasing importance of computer-based communication technologies, communication networks are becoming crucial in supply chain management. Given the objectives of the supply chain: to have the right products in the right quantities, at the right place, at the right moment and at minimal cost, supply chain management is situated at the intersection of different professional sectors. This is particularly the case in construction, since building needs for its fabrication the incorporation of a number of industrial products. This paper provides a review of the main approaches to supply chain communications as used mainly in manufacturing industries. The paper analyses the extent to which these have been applied to construction. It also reviews the on-going developments and research activities in this domain
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