Results 61 to 70 of about 99,009 (221)
Journal of the Mechanical Behavior of Materials, 2019 Railroad ballast structure layer may experience a decline in mechanical and geometrical performance due to heavy train and environmental loads. In order to improve the quality of ballast structure, the addition of asphalt to ballast layer can be ...
Setiawan Dian M.
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Stable, inflatable life raft for high seas rescue operations [PDF]
, 1971 Raft is easily deployed and highly maneuverable in water. It has false bottom of water ballast containers attached to underside, making it exceptionally stable platform from which swimmers can operate.
Barnett, J. H., Jr. +3 more
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An integrated approach to balance freshwater connectivity restoration and invasion risk
Conservation Biology, EarlyView.Abstract Habitat fragmentation negatively affects many native migratory fish populations. However, this fragmentation can also prevent the spread and establishment of invasive species. We modified the dendritic connectivity index (DCI), a commonly used freshwater connectivity metric, to account for multiple invasive dispersal pathways in estimates of ...
Alex Arkilanian +3 more
wiley +1 more source
, 1981 An annular wing particularly suited for use in supporting in flight an aircraft characterized by the absence of directional stabilizing surfaces is described.
Walker, H. J.
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Fracture toughness estimation of ballast stone used in Iranian railway
Journal of Rock Mechanics and Geotechnical Engineering, 2017 Ballast is a layer composed of crushed stone basically with diameters of 20–60 mm, on which sleepers and rails are set. Ballast is used to withstand vertical, horizontal and lateral forces applied on sleepers and to hold the line in operative conditions.
I. Ferestade +2 more
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From products to smart solutions: A value‐creation approach
European Management Review, EarlyView.Abstract Smart solutions comprise a synergy of products, services, software, connectivity, data, and intelligence. This study examines the evolution of a manufacturer into a smart solution provider, highlighting the role of value‐creation capabilities, activities, and practices. Through a longitudinal, in‐depth single‐case study of a leading technology
Tayyab Warraich +4 more
wiley +1 more source
Prevalence and Implications of “Must‐Kill” Angling Regulations for the Management of Invasive Fishes
Fisheries Management and Ecology, EarlyView.ABSTRACT Freshwater biodiversity is increasingly threatened by invasive species, which can disrupt native fish populations and the fisheries they support. Must‐kill regulations, which prohibit the live release of invasive fish caught by recreational anglers, are a management strategy that can be implemented to limit the negative effects of invasive ...
Kevin A. Adeli +2 more
wiley +1 more source
The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?
Marine Ecology, EarlyView.ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie +2 more
wiley +1 more source
Preview of Ballast Water Treatment System Market Status
Naše More (Dubrovnik), 2017 The International Convention for the Control and Management of Ships’ Ballast Water and Sediments was adopted in February 2004 and it was ratified by a sufficient number of countries in September 2016.
Nermin Hasanspahić, Damir Zec
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, 1975 A design study is described for a large low-cost rigid airship intended primarily for the movement of large indivisible loads (cargo) between industrial sites.
Mowforth, E.
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