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Problems and prospects for hydraulic modeling of wave processes in the distorted scales

Yuriy Shelushinin, Konstantine Makarov
2019 Stroitel'stvo: Nauka i Obrazovanie  
The method of scales distortion in physical modeling of wave processes is considered.  ...  The prospects of development and application of the method of the scales distortion of physical models have been estimated. Materials and methods.  ...  In addition, we would like to thank the reviewers and the editorial of the "Vestnik MGSU" for the time spent on work with scientific content.  ... 
doi:10.22227/2305-5502.2019.2.4 fatcat:uwiqzlzmzbhvrbvssjsmdd7rfe

Modeling and Practical Evaluation of a Service Location Problem in Large Scale Networks

Olivier Beaumont, Nicolas Bonichon, Hubert Larchevêque
2011 2011 International Conference on Parallel Processing  
We consider a generalization of a classical optimization problem related to server and replica location problems in networks.  ...  We model this problem as a variant of Bin Packing, namely Bin Packing under Distance Constraint (BPDC) where the goal is to build a minimal number of bins (i.e. to choose a minimal number of servers) so  ...  Modeling and Practical Evaluation of a Service Location Problem in Large Scale Networks Olivier Beaumont, Nicolas Bonichon, Hubert Larchevêque Université de Bordeaux, Laboratoire Bordelais de Recherche  ... 
doi:10.1109/icpp.2011.36 dblp:conf/icpp/BeaumontBL11 fatcat:5nytw3vbj5fb3epzjuysjulwqu

Development and testing of a subgrid-scale model for moving-boundary hydrodynamic problems in shallow water

Paul D. Bates
2000 Hydrological Processes  
HYDROLOGICAL PROCESSES Hydrol. Process. 14, 2073—2088 (2000) Development and testing of a subgrid-scale model for moving- boundary hydrodynamic problems in shallow water Paul D.  ...  Process. 14, 2073-2088 (2000) MOVING-BOUNDARY HYDRODYNAMIC PROBLEMS REFERENCES Band LE, Moore ID. 1995. Scale: landscape attributes and geographical information systems.  ... 
doi:10.1002/1099-1085(20000815/30)14:11/12<2073::aid-hyp55>;2-x fatcat:apvkkocuqzgx5akcxhppoupgve

Thermo-kinetic and Physico-Chemical Modeling of Processes Generating Scaling Problems in Phosphoric Acid and Fertilizers Production Industries

Mohamed Azaroual, Christophe Kervevan, Arnault Lassin, Laurent André, Mohamed Amalhay, Lhachmi Khamar, Mohamed E.L. Guendouzi
2012 Procedia Engineering  
of the deposited minerals, and the use of the Pitzer formalism for the thermodynamic modeling of such complex system.  ...  conditions of the process (40-95 °C; H 3 PO 4 and H 2 SO 4 concentrations up to 20 mol/kg H 2 O, typically).  ...  Acknowledgements The CA2PHOS project is co-funded by OCP and BRGM.  ... 
doi:10.1016/j.proeng.2012.09.447 fatcat:bvlnh5c2fnbfphx36nwvxdqnj4


V. Maderich, Institute of Mathematical Machines and Systems Problems, National Academy of Sciences of Ukraine, Kyiv, K. Terletska, I. Brovchenko, Institute of Mathematical Machines and Systems Problems, National Academy of Sciences of Ukraine, Kyiv, Institute of Mathematical Machines and Systems Problems, National Academy of Sciences of Ukraine, Kyiv
2018 Ukraïnsʹkij antarktičnij žurnal  
The numerical methods were applied in modeling by mean of the SCHISM model with unstructured mesh.  ...  The simulation results showed that under the action of buoyancy forces, Coriolis and friction in the baroclinic ocean, the flow of water from the Ronne-Filchner glacier on the edge of the shelf and the  ...  Fig. 2 . 2 Initial profiles of potential temperature and salinity based on data (Wilchinsky & Feltham, 2009).  ... 
doi:10.33275/1727-7485.16.2017.60 fatcat:p3jv545uszdb3fo4lihgakjniy

1. Present Situation and Problems of Modeling of N Dynamics Based on the Microbial Metabolic Processes in Soil(Models to Evaluate Nitrogen Flows in Various Scale as a Pedon, Field and a Water Catchment)

Takashi Nishio
2007 Japanese Journal of Soil Science and Plant Nutrition  
Present Situation and Problems of Modeling of N Dynamics Based on the Microbial Metabo 工 ic Processes in Soil * 020 − Ol98盛 岡 市 下 厨 川 字 赤 平 4 2007 年 5 月 1 日 受 付 ・ 受 理 日本 土 壌肥 料 学 雑誌 第 78 巻 第 6 号 p  ...  to Evaluate Nitrogen Flows in Various Scale as a Pedon , Field and a Water Catchment . 1.  ... 
doi:10.20710/dojo.78.6_619 fatcat:7cqul4za5vf3beaef7xtdiibua

Hybrid numerical methods for multiscale simulations of subsurface biogeochemical processes

T D Scheibe, A M Tartakovsky, D M Tartakovsky, G D Redden, P Meakin
2007 Journal of Physics, Conference Series  
While many problems can be effectively addressed by one of these models at a single scale, some problems may require explicit integration of models across multiple scales.  ...  This paper describes the specific methods/codes being used at each scale, techniques used to directly and adaptively couple across model scales, and preliminary results of application to a multi-scale  ...  Department of Energy's Office of Science under the Scientific Discovery through Advanced Computing (SciDAC) program.  ... 
doi:10.1088/1742-6596/78/1/012063 fatcat:xvmzcigaljh5zawhsz6tno5dky

Scaled steady state models for effective on-line applications

Tore Lid, Sigurd Skogestad
2008 Computers and Chemical Engineering  
The model is based on a unit model structure where first-order derivatives, scaling and initial values are properties of the unit model.  ...  The models in these applications are rarely changed and the same optimization problem is solved thousands of times with only minor changes in the parameters.  ...  The authors are grateful to Professor Terje Hertzberg at the Norwegian University of Science and Technology (NTNU) in Trondheim, for his interest in this work, encouragement and helpful comments.  ... 
doi:10.1016/j.compchemeng.2007.04.003 fatcat:do4qe2ja3ndozaytbwsz7b5xo4

Measuring Students' Progressions in Scientific Problem Solving: A Psychometric Approach

Ronny Scherer, Rüdiger Tiemann
2014 Procedia - Social and Behavioral Sciences  
We conclude that our model of scientific problem solving can be used to capture students' interindividual progressions.  ...  Based on four key dimensions, a vertical scale has been established by using an IRT modeling approach.  ...  First, the data set of each grade was scaled separately and uni-and higher-dimensional models were compared.  ... 
doi:10.1016/j.sbspro.2014.01.1142 fatcat:npkgfhug3fcwvn2vt5amqe72m4

What is the future of causal models of cosmic structure formation? [article]

Andreas Albrecht
1998 arXiv   pre-print
Here I discuss the nature of the problems with defect models, and place this discussion in the context of the big picture of cosmic structure formation.  ...  In particular, I classify models of cosmic structure formation as either "causal" or "acausal", and ask whether the problems with the defect models extend to all other causal models.  ...  Robinson and J. Weller for the enjoyable collaborations which produced this work. I would also like to thank D. Spergel and N. Bahcall for comments on the Causal White Noise models.  ... 
arXiv:astro-ph/9802135v2 fatcat:w5snxhfhtrdqzothv43zdsgt7y

Perspectives for process systems engineering—Personal views from academia and industry

Karsten-Ulrich Klatt, Wolfgang Marquardt
2009 Computers and Chemical Engineering  
Its major achievements include methodologies and tools to support process modeling, simulation and optimization (MSO).  ...  Emphasis should be put on model-based applications in all PSE domains including product and process design, control and operations.  ...  optimization of processes described by strongly nonlinear large-scale process models.  ... 
doi:10.1016/j.compchemeng.2008.09.002 fatcat:i3bqe52p7rbwllvs75t6kwlt4u

Rapid-Response Unsaturated Zone Hydrology: Small-Scale Data, Small-Scale Theory, Big Problems

John R. Nimmo, Kim S. Perkins, Michelle R. Plampin, Michelle A. Walvoord, Brian A. Ebel, Benjamin B. Mirus
2021 Frontiers in Earth Science  
The disparity between the scale of our understanding and the scale of interest for societal problems has spurred application of these model equations at increasingly coarse resolutions over larger areas  ...  Equations representing unsaturated processes have been developed and tested on the basis of field and laboratory measurements typically made at scales from pore size to plot size.  ...  AND CONCLUSION Developing theory, measurements, and models that represent regional-scale problems without losing the link to local-scale processes is a fundamental UZ challenge (Harter and Hopmans, 2004  ... 
doi:10.3389/feart.2021.613564 fatcat:5uffftnk4jeuxdh2qilq2dlwcq

Page 964 of American Society of Civil Engineers. Collected Journals Vol. 113, Issue 8 [page]

1987 American Society of Civil Engineers. Collected Journals  
A comparison of the specific processes that should be represented by the model and the processes required by solution to the problem is critical.  ...  Ford and Thornton (1979) examined the problem of dimensionality in an analysis of time and length scales characterizing lake hydrodynamics, chemistry, and biology.  ... 

Scaling and Complexity in Landscape Ecology

Erica A. Newman, Maureen C. Kennedy, Donald A. Falk, Donald McKenzie
2019 Frontiers in Ecology and Evolution  
Modeling processes and interactions at the landscape scale, including future states of biological communities and their interactions with each other and with processes such as landscape fire, requires  ...  We identify three intrinsic limitations to progress in landscape ecology, and ecology in general: (1) the problem of coarse-graining, or how to aggregate fine-scale information to larger scales in a statistically  ...  ACKNOWLEDGMENTS We thank David Hembry for discussion and edits to the manuscript, and Carol Miller and David Wolpert for comments and contributions to figures in the manuscript.  ... 
doi:10.3389/fevo.2019.00293 fatcat:jein5wmjs5c4bevc2plcq7b3bi

Page 89 of Journal of the Atmospheric Sciences Vol. 61, Issue 1 [page]

2004 Journal of the Atmospheric Sciences  
This generates difficulties in high- resolution models in which grid-scale and subgrid-scale moist processes are not well separated as is typical in mesoscale models (Molinari and Dudek 1992; see also  ...  on the link between cloud and larger scales, including the mean transports induced by cloud processes.  ... 
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