Results 251 to 260 of about 21,694,057 (311)

Modeling tongue shapes with conic arcs

The Journal of the Acoustical Society of America, 2001
Quantifying the changing shape of the tongue has been a longstanding challenge for experimental phonetics. One approach is to track the location of points on the tongue using x-ray microbeam or EMA. This leads to a precise numerical quantification, but is limited to information from a few points.
Khalil Iskarous, D. H. Whalen, Ignatius Mattingly   +2 more
openaire   +1 more source

Conical refraction: A dual-cone model

2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, 2013
Conical refraction (CR) is an optical phenomenon known for almost 200 years but due to the lack of practical applications its mathematical explanation was published only in 1978 [1] and expanded in 2004 by Berry [2].
Sokolovskii, G. S., Carnegie, D. J., Kalkandjiev, T. K., Rafailov, E. U.   +3 more
openaire   +2 more sources

Multi-Timescale Model Predictive Control of Battery Energy Storage System Using Conic Relaxation in Smart Distribution Grids

IEEE Transactions on Power Systems, 2018
This paper proposes a multi-timescale volt/var optimization for the optimal dispatch of battery energy storage system in smart distribution grids. It aims to coordinate the substation on-load tap changer operation on slow-timescale (hourly basis) with ...
Raheel Zafar, J. Ravishankar, J. Fletcher, H. Pota   +3 more
semanticscholar   +1 more source

Conical moving‐bed shale retort model

AIChE Journal, 1990
AbstractThis two‐dimensional model of a moving‐bed shale oil retort accounts for the major physical interactions of convective heating and kerogen decomposition coupled with the shale and gas flow distributions. Data in a small‐sale apparatus support a solids flow model of potential flow, although the exiting boundary conditions are uncertain.
David H. Anderson, Ajit V. Sapre, Clinton R. Kennedy, Frederick J. Krambeck   +3 more
openaire   +1 more source

Geometric Modeling with Conical Meshes and Developable Surfaces

ACM SIGGRAPH 2006 Papers on - SIGGRAPH '06, 2006
In architectural freeform design, the relation between shape and fabrication poses new challenges and requires more sophistication from the underlying geometry. The new concept of conical meshes satisfies central requirements for this application: They are quadrilateral meshes with planar faces, and therefore particularly suitable for the design of ...
Liu, Y, Pottmann, H, Wallner, J, Yang, YL, Wang, W   +4 more
openaire   +3 more sources

Circuit Modeling of a Small Broadband Conical Antenna

IEEE Antennas and Wireless Propagation Letters, 2009
Equivalent circuit modeling methodology is proposed in this letter for a small broadband antenna composed of a conical monopole with metallic parasitic elements, a capacitive disk, and a dielectric substrate around the feed region. This omnidirectional antenna provides broadband performances over the whole bandwidth with a height limited to a one ...
Palud, Sébastien, Colombel, Franck, Himdi, Mohamed, Le Meins, Cyrille   +3 more
openaire   +2 more sources

Conical refraction with Gaussian Schell-model sources

2020 International Conference Laser Optics (ICLO), 2020
We derive the theory of the conical refraction for partially spatially coherent light using the Gaussian Schell-model. The effect of narrowing of the CR ring width due to reducing the coherence degree is predicted.
V. Yu. Mylnikov, E. U. Rafailov, G. S. Sokolovskii   +2 more
openaire   +1 more source

Virtual Models of Conic Sections

2011
Digital visualization is a relatively new concept compared to other concepts known for centuries. This paper presents an attempt to convert the mathematical concept of conic sections into several software applications designed and implemented by the author.
openaire   +1 more source

A new subspace minimization conjugate gradient method based on conic model for large-scale unconstrained optimization

Computational and Applied Mathematics, 2022
Wumei Sun, Yufei Li, Ting Wang, Hongwei Liu   +3 more
semanticscholar   +1 more source

One-dimensional modelling of conical spouted beds

Chemical Engineering and Processing: Process Intensification, 2009
A one-dimensional model has been developed that considers the solid cross-flow from the annulus into the spouted bed. The model is based on mass and momentum balance equations for the gas and solid in both the annulus and spout. The great advantage of the model is the need for only two empirical equations: one for obtaining minimum spouting velocity ...
M. Olazar, G. Lopez, H. Altzibar, A. Barona, J. Bilbao   +4 more
openaire   +1 more source