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Detection and Prevention of Selective Forwarding-Based Denial-of-Service Attacks in WSNs
Published 2013-08-01“…Designing wireless sensor networks (WSNs) that can work reliably in the presence of inside packet drop attackers is very challenging. …”
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Design of a Bidirectional Antenna inside a Vehicle and Measurement of Power Link for Vehicle-to-Vehicle Communication at 5.8 GHz
Published 2018-01-01“…In this paper, a bidirectional antenna that can be installed inside a vehicle is proposed and tested in a real vehicular environment at 5.8 GHz. …”
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The geometry evolution of Early Paleozoic carbonate platform in the southwestern Tarim Basin, China: evidence from sequence stratigraphic analysis and seismic forward modeling
Published 2025-02-01“…Seismic forward modeling was performed to examine the validity of possible hypothetical models in the studied area. …”
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COMPARATIVE RESEARCHES OF FRACTURES OF HIGH-STRENGTH CAST IRON IN THE AS-CAST AND DEFORMED STATE
Published 2016-01-01Subjects: “…the results of comparative studies of fracture surfaces of high-strength cast iron in the as-cast state and after hot direct extrusion through an aperture of a conical die are presented. the shape change of graphite inclusions and components of the metal matrix is examined with increasing the reduction ratio from 0 (as-cast state) to 80%. for the fist time, using the electrochemical etching of the metal matrix of the cast iron, it is demonstrated experimentally that at plastic deformation the ductile flow of graphite inclusions occurs without fracturing of the latter. the surface morphology of a deformed graphite inclusion is revealed. it is shown that inside the inclusion the strain is distributed non-uniformly: the peripheral zones are deformed to a larger extent while the central part may retain its original radial structure. the fact that the most part of graphite inclusions on the fracture surface of the deformed cast iron appeared undamaged (very small amount of fractured inclusions was observed) testifies against the common opinion that graphite acts as a crack nucleation site. a hypothesis is put forward that the crack nucleates in the metal matrix, presumably at the pearlite/ferrite interface, and propagates from one graphite inclusion to another rounding but not damaging the latter.…”
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Design and Motion Simulation of the Drive Mechanism of Oil-immersed Transformer Spherical Detection Robots
Published 2024-08-01“…Aiming at the complex environment inside the oil-immersed transformer, a spherical detection robot is proposed according to the design requirements such as a fault detection. …”
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Un panorama des propositions économiques en matière de soutenabilité
Published 2004-11-01“…This one is setting on three groups of theoretical works: the first one, which is the point of view of mainstream in economics, brings forward the idea of sustainable growth as a necessary and sufficient condition to have a sustainable development; the second, more conscious of physical limits, try to elaborate socio-environmental constraints, inside of which economic development must go on; the third one, influenced by third world experiences, insists on social inequalities and question the sense of the notion of development.…”
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Induced Unbalance as a Method for Improving the Dynamic Stability of High-Speed Turbochargers
Published 2011-01-01“…The nonlinear forces inside the bearings are causing the rotor to whirl in a limit cycle. …”
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Revascularization of an acute right coronary artery long flap dissection with “Prolapsing knuckle wire technique”
Published 2024-12-01“…We present a rare case of revascularization of right coronary artery long flap dissection with novel prolapsing knuckle wire technique as the wire was repeatedly entering into the large medial dissection flap rendering the forward advancement of the wire impossible to cross the lesion. …”
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Population surveillance and trend alert analysis of mass gatherings
Published 2017-12-01“…Taking the bund stampede in December 31th,2014 as an example,the urgent problems of the population surveillance and trend alert analysis in mass gatherings were proposed:population statistics and the flow density in the scenic,flow and velocity analysis,the judgments of stop-and-go or head-on walking phenomenon inside the local area.In order to provide support for population situation judgment and early warning,emergency response and evacuation in future mass gatherings,the intrinsic defects of the current three principal techniques analysis and the corresponding suggestions were put forward.…”
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Prépositions, adverbes et conjonctions en anglais : pour une redéfinition des classes lexicales
Published 2018-11-01“…A unified analysis is put forward for after, before and since in English, which are usually split into several classes only because of their complementation. …”
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Polynomial time algorithm for solving k-coverage problem in wireless sensor networks
Published 2017-12-01“…How to solve the k-coverage problem,which was divided into worst-case and best-case,inside the two-dimensional target area in wireless sensor networks was explored,and a polynomial time algorithm for solving this problem was put forward.In this algorithm,a series of definitions and theorems were proposed based on the geometric graph of growing disks,and the k-coverage problem was transformed into one of finding a series of adjacent borders.The simulation results show that the algorithm could compute the optimal k-breach path and k-support path in polynomial time,so as to avoid or select the network coverage reasonably.…”
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Study on the Workspace and Structural Parameter Optimum of Parallel Mechanism based on Waterwave Method
Published 2018-01-01“…A waterwave method based on chaotic mapping algorithm for the fast search algorithm of planar parallel mechanism workspace is put forward in the study. Taking the 3-RRR parallel mechanism as a example,the reachable workspace,certain posture workspace and dexterous workspace are analyzed. …”
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Getting Started in the 4-H Embryology Project: Tips for 4-H Agents and Teachers
Published 2015-05-01“…In it, young people use an incubator to grow avian embryos (inside fertile eggs) through the hatching process. …”
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Getting Started in the 4-H Embryology Project: Tips for 4-H Agents and Teachers
Published 2015-05-01“…In it, young people use an incubator to grow avian embryos (inside fertile eggs) through the hatching process. …”
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A Detailed Analytical Study of Non-Linear Semiconductor Device Modelling
Published 1995-01-01“…This paper presents a detailed analytical study of Gunn, SCR, and p-n junction and of the physical processes that occur inside. Based on the properties of these devices, models for Gunn, SCR, and p-n junction diode have been developed. …”
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RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU
Published 2020-01-01“…Fatigue test found that the weld hook inside the ribbed plate weld existed hidden dangers of fatigue and put forward an optimized program. …”
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A Multiquark Approach to Excited Hadrons and Regge Trajectories
Published 2019-01-01“…By assumption, all such mesons above 1 GeV appear due to creation of constituent quark-antiquark pairs inside π or ρ(ω) mesons. These spin-singlet or triplet pairs dictate the quantum numbers of formed resonance. …”
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Application of Spiral Ring Dampers in Vibration Reduction of Aeroengine Bevel Gears
Published 2023-12-01“…In detail, a concave groove is fabricated on the inside rim of gear wheels, in which the designed spiral damping ring is embedded. …”
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Seismic Waveform Inversion Using the Finite-Difference Contrast Source Inversion Method
Published 2014-01-01“…Numerical reconstruction results show that the inversion method has an excellent performance for reconstructing the objects embedded inside a homogeneous or an inhomogeneous background medium.…”
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