3,080 research outputs found

    What Others Say About This Work? Scalable Extraction of Citation Contexts from Research Papers

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    This work presents a new, scalable solution to the problem of extracting citation contexts: the textual fragments surrounding citation references. These citation contexts can be used to navigate digital libraries of research papers to help users in deciding what to read. We have developed a prototype system which can retrieve, on-demand, citation contexts from the full text of over 15 million research articles in the Mendeley catalog for a given reference research paper. The evaluation results show that our citation extraction system provides additional functionality over existing tools, has two orders of magnitude faster runtime performance, while providing a 9% improvement in F-measure over the current state-of-the-art

    Efficiency of an Energy-Dissipating Barrier

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    The proposed paper describes some experimental procedures, used in (a) laboratory to recognize the energy-dissipating ability of soil and (b) in centrifuge to generate in-flight stress waves propagating through a centrifugal soil mass in order to investigate the efficiency of a stress wave mitigation barrier. The screening principle of this new type of energy-dissipating barrier has been suggested by the dissipative behavior of sandy soils, evidenced by infrared vibrothermography

    Dynamic Behavior of Slender Structures on Their Prestressed Foundations

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    A non-destructive vibratory testing, using impulsive tension slacking has been devised for the quality and safety control of overhead line towers. Several structural control experiments have been conducted on four-legged towers resting on three types of foundations: concrete stepped or pedestal blocks, steel piles and prestressed foundations. Experimental results have given significant vibratory signatures in close connection with the geotechnical response characteristics of both such slender structures and their foundations. The control of foundation mechanical behavior may be very useful in cases of earthquake resistant construction and design. This paper presents some significant results of the test program

    Energy-Absorbing Ability of Texsol

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    Texsol is a 30 soil-fiber composite, obtained using a technique of soil reinforcement by incorporation of continuous textile fibers. The overall mechanical properties of Texsol result therefore from those of its components: soil and fibers. An experimental approach has been carried out in order to grasp the basic aspects of the stress-strain response of Texsol subjected to monotonic, cyclic and vibratory loadings. The study confirms that the application of Texsol to earthquake resistant earthworks and traffic structures could be of great interest and particularly suitable as shown by its ductility and energy-absorbing capacities that are readily evidenced by the laboratory conventional tests

    Safety Evaluation of Overhead Line Towers

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    A nondestructive vibratory testing using impulsive tension slacking has been devised for the quality and safety control of overhead line towers of Electricité de France. Several structural control experiments have been conducted on four-legged towers resting on three types of foundations: concrete stepped or pedestal blocks, steel piles and prestressed foundations. Experimental results have given significant vibratory signatures in close connection with the geotechnical response characteristics of both slender structures and their foundations. This paper presents some significant results of the test program of safety evaluation of the pylon

    Maturation sexuelle et fonctionnement ovarien de Rhammatocerus schistocercoides (Rehn, 1906) (Orthoptères, Acrididae, Gomphocerinae), acridien ravageur de l´état du Mato Grosso (Brésil).

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