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Compaction of Sediments and Different Compaction Models
2019Various simple and advanced models exist for mechanisms of uniform and non-uniform sediment compaction that increases density and reduces porosity. While the classical Athy’s relation on depth-wise exponential reduction of porosity is not divided into any distinct stages, the Hedberg’s model involves four stages.
Troyee Dasgupta, Soumyajit Mukherjee
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On the modelling of the compaction mechanism of shock compacted powders
Journal of Materials Processing Technology, 2001Abstract A variety of ceramic or metallic components are produced for advanced structural applications by the powder consolidation technique. Dynamic consolidation is a method that involves a very rapid and intense deposition of shock energy at powder particle surfaces and has been already applied in the area of processing of high-Tc superconducting ...
A.G Mamalis, I.N Vottea, D.E Manolakos
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Micro-mechanical modelling of powder compaction
Journal of the Mechanics and Physics of Solids, 2001To model the compactification of a granular material by accounting for its microstructural properties, three different models (one isotropic, two anisotropic) are proposed and tested against each other (and, where available, against experimental data) in several scenarios.
Henderson, R. J. +4 more
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2016 MIXDES - 23rd International Conference Mixed Design of Integrated Circuits and Systems, 2016
The cutoff frequencies and maximum frequencies of operation of short channel transistors have reached the terahertz (THz) range. In such devices, the ballistic electron transport, which was first proposed nearly 40 years ago, affects all the device characteristics - from the linear region (dominated by the so-called “ballistic mobility”) to a high ...
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The cutoff frequencies and maximum frequencies of operation of short channel transistors have reached the terahertz (THz) range. In such devices, the ballistic electron transport, which was first proposed nearly 40 years ago, affects all the device characteristics - from the linear region (dominated by the so-called “ballistic mobility”) to a high ...
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Frustrated Models for Compact Packings
1998We review some properties of frustrated models which reproduce the logaritmic relaxation in granular compaction.
A. Coniglio +4 more
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COMPACT A Reclamation Soil Compaction Model Part I. Model Development
Transactions of the ASAE, 1992A physically based, event oriented soil compaction model, known as COMPACT, was developed as a management or research tool to evaluate the effect of surface mining systems on compaction of soil material during reclamation. Simulation of compaction throughout the soil profile at a surface mining reclamation site requires information describing how ...
null R. L. Bingner, null L. G. Wells
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Analytical Compact Model for PMUTs Interfaces
2018 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS), 2018Piezoelectric Micromachined ultrasound transducers (PMUT) have been studied extensively in the last few years, with a focus on the transducer fabrication or application driven front-end interface. This paper presents an analytical approach that addresses PMUTs along with their front-end interfaces.
Bedier, Mohammed +2 more
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The Synergy SPICE – Compact Models
ESSDERC 2019 - 49th European Solid-State Device Research Conference (ESSDERC), 2019SPICE became the de facto standard Integrated Circuit (IC) design tool due in part to being an open-source software program and incorporating mathematical models for the behavior of the semiconductor devices at the core of ICs. The chosen detail level of the device equations in these models is appropriate for circuit simulation and they are referred to
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On Compact Storage Models for Gazetteers
2006This paper describes compact storage models for gazetteers using state-of-the-art finite-state technology. In particular, we compare the standard method based on numbered indexing automata associated with an auxiliary storage device, against a pure finite-state representation, the latter being superior in terms of space and time complexity, when ...
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