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Informationssicherheit : Möglichkeiten und Grenzen
Liedtke, Thomas - 2022
-/Cybersecurity-Standards -- Hacking -- Risiko-Assessment -- IT-Service-Management. … Sicherheit (Safety) Informations-/Cybersecurity-Standards Hacking Risiko-Assessment IT-Service-Management Der Autor Dr. Thomas …
Persistent link: https://www.econbiz.de/10013185623
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A New Spread Spectrum Based Approach for Ensuring Energy Efficiency and Security in Wireless Sensor Networks
Rouissi, Nejla; Gharsellaoui, Hamza; Bouamama, Sadok - In: International Journal of Advanced Pervasive and … 10 (2018) 4, pp. 45-57
-frequency-time spread spectrum secures data communication against jamming and falsification to ensure data integrity and increases …
Persistent link: https://www.econbiz.de/10012043067
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Jamming: A simple introduction
Siemens, Alexander O.N.; van Hecke, Martin - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 20, pp. 4255-4264
physics displayed by a very simple model system for the jamming transition: frictionless, soft spheres at zero temperature and … jamming transition, whenever the confining pressure becomes positive. We highlight some of the remarkable geometrical features … of the zero pressure jamming point and discuss the peculiar mechanical properties of these systems for small pressures. …
Persistent link: https://www.econbiz.de/10010873961
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Optimizing at the ergodic edge
Boettcher, Stefan; Frank, Martin - In: Physica A: Statistical Mechanics and its Applications 367 (2006) C, pp. 220-230
Using a simple, annealed model, some of the key features of the recently introduced extremal optimization heuristic are demonstrated. In particular, it is shown that the dynamics of local search possesses a generic critical point under the variation of its sole parameter, separating phases of...
Persistent link: https://www.econbiz.de/10010874003
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COMPLEX FLOW IN GRANULAR MEDIA
BRAND, S.; CIAMARRA, M. PICA; NICODEMI, M. - In: Advances in Complex Systems (ACS) 13 (2010) 03, pp. 339-347
By detailed Molecular Dynamics we investigate the rheology of granular suspensions driven through a fixed plate channel by a pressure gradient in the suspending fluid. We observe various possible flow states: disordered flow, ordered flow (granular crystallization) and jammed as well as make...
Persistent link: https://www.econbiz.de/10008465486
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Flow and jam of granular particles in a two-dimensional hopper
To, Kiwing; Lai, Pik-Yin; Pak, H.K - In: Physica A: Statistical Mechanics and its Applications 315 (2002) 1, pp. 174-180
The jamming phenomenon of granular flow of mono-disperse disks in a two-dimensional hopper is studied experimentally …. When the opening of the hopper d is small, jamming occurs due to formation of an arch at the hopper opening. The jamming … disk configurations of the arch in the jamming events, the jamming probability can be explained quantitatively using a …
Persistent link: https://www.econbiz.de/10010589948
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Phase segregation in driven diffusive systems
Braun, O.M. - In: Physica A: Statistical Mechanics and its Applications 357 (2005) 2, pp. 350-355
Driven diffusive models describe an array of atoms in an external periodic potential, when the motion is damped due to energy exchange with the substrate. The systems of this class have wide application in modeling of charge and mass transport in solids. Recently, the driven diffusive models...
Persistent link: https://www.econbiz.de/10011058099
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Jamming in the weighted gradient networks
Pan, Gui-Jun; Liu, Sheng-Hong; Li, Mei - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 18, pp. 3178-3182
power-law function of the scalar difference |hj−hi| between the two connected nodes i and j, i.e., wij∼|hj−hi|α. The jamming … factor J of the whole network is defined as the average of the jamming degrees of all nodes. The jamming properties are … addition, the jamming effects of the two networks are compared, and we give the range of values of α and 〈k〉 that the scale …
Persistent link: https://www.econbiz.de/10011058925
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Flow overshooting in crossing flow of lattice gas
Saegusa, Tatsuhiko; Mashiko, Takashi; Nagatani, Takashi - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 16, pp. 4119-4132
We study the lattice gas flow of two components of biased-random walkers at a crossing under a periodic boundary. The lattice gas mixture consists of two components of particles (walkers) in which one component of particles moves north and the other component of particles moves east. The current...
Persistent link: https://www.econbiz.de/10011060342
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A thermodynamic approach to slowly sheared granular matter
Makse, Hernán A. - In: Physica A: Statistical Mechanics and its Applications 330 (2003) 1, pp. 83-90
Recent theories postulate that the non-equilibrium behaviour of systems experiencing jamming or structural arrest could …
Persistent link: https://www.econbiz.de/10011063086