13,606 research outputs found
Integrated Project Teams: The MoD's New Hot Potato?
Since the announcement of Smart Procurement, much has been written on the
potential benefits that IPTs will hopefully bring. It is supposed that they will
improve the interface with industry, create a better understanding of
requirements and establish an environment where industry is motivated to perform
and so reduce cost, risk and time into service while improving product quality.
The formation of a team should provide continuity, consistency, flexibility and
~ increased performance due to the integration of a wide-range of functional
activities and decision-making, as well as increased motivation. These may well
be gallant objectives, but how achievable are they? What obstacles does the MoD
face in the implementation of the IPTs? Have they grasped a 'hot potato'
Eelgrass Habitat Creation in Nantucket Harbor, Massachusetts
In response to eelgrass habitat losses associated with development and marine activities in and around Nantucket Harbor, a plan to restore a meadow by transplanting eelgrass to previously vegetated areas was developed in conjunction with the Nantucket Land Council. Over 6,000 eelgrass shoots were sustainably harvested from an extensive bed within the Harbor that was located just west of First Point and near the inlet to Nantucket Sound. Four weeks following collection, impacts from our collection were shown by a 24% decline in shoot density, but live eelgrass cover did not decline significantly. After 12 weeks, no effects of collecting could be measured at the donor site for shoot density or cover. Plants had difficulty establishing within the restoration area due in part to extensive phytoplankton and macroalgal blooms that dramatically shaded the transplants for the initial three months following transplanting. After the first growing season, few of the 6,000 plants had survived, but those plants that survived became well established and grew through the second growing season in 2011. The significance of the macroalgae was documented through estimates of percentage cover, whereas light measurements showed the decline in water clarity from phytoplankton blooms to less than 10% ambient. Combined with our planting and monitoring results, our observations suggest that reestablishment of eelgrass beds in Nantucket Harbor is not limited by the distribution of seedlings, but by shading from phytoplankton and macroalgal blooms that resulted in levels of light too low to support eelgrass establishment during the summer months in 2010
Wetlands Evaluation for Philbrick\u27s Pond Marsh Drainage Evaluation North Hampton, NH
Philbrick’s Pond is a lagoon type estuary that formed landward of barrier beach spits in North Hampton, NH. Its inlet was stabilized and restricted by the road that is now Route 1A or Ocean Boulevard. Water flow from the Gulf of Maine passes through a culvert running under Route 1A and into a small waterway and is further restricted as it runs through a clay pipe under an old trolley berm. The lagoon is characterized as a 29 acre tidal marsh. The goal of the overall project is to evaluate the condition and hydrology of the two restrictions recognizing the conflicting needs for improved drainage from upstream flooding and limiting tidal flooding associated with extreme (i.e., storm surge) and normal flooding events due to sea level rise. The tidal marsh itself is a resource held in the public trust and therefore should be protected from any negative impacts associated with current conditions or predicted impacts due to future alternatives that may be chosen by the Town and its residents. Ditching of the marsh in the mid twentieth century rerouted drainage paths (e.g., Chapel Brook) and has resulted in large areas of vegetation loss between ditches in the past 60 years, as first reported by Short in 1984.
The objectives of this report on the tidal marsh are threefold: 1) to evaluate the health of the tidal marsh by comparing existing and new data in Philbrick’s Pond with conditions found in the Little River tidal marsh just to the south; 2) characterize the relative benefits to the tidal marsh for the hydraulic alternatives evaluated by the hydrologic modeling; and 3) recommend management actions to restore marsh health using small scale drainage improvements (also known as runneling)
Magnetoelectric polarizability and axion electrodynamics in crystalline insulators
The orbital motion of electrons in a three-dimensional solid can generate a
pseudoscalar magnetoelectric coupling , a fact we derive for the
single-particle case using a recent theory of polarization in weakly
inhomogeneous materials. This polarizability is the same parameter
that appears in the "axion electrodynamics" Lagrangian , which is known to describe the
unusual magnetoelectric properties of the three-dimensional topological
insulator (). We compute for a simple model that accesses
the topological insulator and discuss its connection to the surface Hall
conductivity. The orbital magnetoelectric polarizability can be generalized to
the many-particle wavefunction and defines the 3D topological insulator, like
the IQHE, in terms of a topological ground-state response function.Comment: 4 pages; minor changes resulting from a change in one referenc
Is sea-basing a viable method of providing logistic support to the UK amphibious force?
Maritime power has traditionally been a central part of the UK’s defence planning and is well
suited to supporting a wide range of military operations. The littoral area has always created
problems for naval planners as most landings historically have had to endure a tactical
separation of the naval and land components, and hence an artificial seam between the Navy
and the Marines. With the end of the Cold War, amphibious operations are going to be more
difficult to conduct than in the past, and amphibious forces are going to have to adopt
manoeuvre warfare capabilities in order to successfully complete their missions. It is very
likely that amphibious forces will have to conduct operations against a numerically superior
enemy, who is on his own terrain, and be surrounded by a neutral, if not hostile populace. As
such, the concept of Operational Manoeuvre From The Sea (OMFTS) whereby the sea is used
as a manoeuvre space, and command and control is fast enough to cope with large amounts of
information, but at the same time allow subordinates maximum flexibility to use their
initiative, is increasingly attractive. It will be important not only for the combat elements to be
able to use this new concept, but the Combat Service Support (CSS) elements as well
A Survey of the Audio-Visual Program of the Shelbyville Unit School District #4 with Recommendations
A Survey of the Audio-Visual Program of the Shelbyville Unit School District #4 with Recommendations
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