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Topic: Dynamical simulation

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	Monthly Temperature Forecasts for Denmark - Statistical or Dynamical?
		Systematic combination of statistical and dynamical forecasts does not increase the level of skill, but for predictable months it is found that agreement between statistical predictions and predictions based on dynamical model forecasts for the first ten days of the forecast target month greatly increases the reliability of the statistical predictions.
		Simulated temperature in 850 hPa and simulated mean sea level pressure were also tested as predictors, but they were not found to add to the skill of the monthly hindcasts obtained with the predictors listed in Tables 2-5.
		As the simulated 2m temperature over land can still be affected by SST from adjacent grid points the predictive skill presented in Tables 2-5 for predictors of simulated 2m monthly mean temperature should be regarded as an upper limit.
	www.dmi.dk /dmi/sr99-8.html (5536 words)

	Project-Team-IPSO (Site not responding. Last check: 2007-10-15)
		While dynamical simulation (for ballistic trajectories) was one of the first applications of the digital computer, the problems treated, the methods used, and their implementation have all changed a great deal over the years.
		Simulation can replace or guide experiment, which often is difficult or even impossible to carry out as our ability to fabricate the necessary devices is limited.
		In mechanical models (biodynamics, vehicle simulation, astrodynamics) the available structure may include constraint dynamics, actuator or thruster geometry, dissipation rates and properties determined by nonlinear forms of damping.
	www.inria.fr /rapportsactivite/RA2004/ipso2004/uid4.html (432 words)

	Wear Profiles and the Dynamical Simulation of Wheel-Rail Systems - Arnold, Netter (ResearchIndex)
		Abstract: Recently, a quasi-elastic model for the contact between two rigid bodies was introduced, that is tailored to the contact between a wheel with wear profile and a rail ([1]).
		This new approach to the geometrical description of wheel-rail contact is used successfully in the dynamical simulation of wheelrail systems that have wheels with wear profiles.
		In the present paper we discuss the application of the quasi-elastic contact model in the dynamical simulation and the efficient numerical solution...
	citeseer.ist.psu.edu /62815.html (488 words)

	Publications 2003 \| A Dynamical Simulation...
		The goal of the new impulse-based dynamic simulation method is to correctly simulate rigid bodies, also taking into consideration that rigid bodies can be connected by joints (e.g.
		The designed dynamic simulation system should also be able to correctly simulate collision and friction.
		The simulation of single rigid bodies is relatively straight forward, however, this is more complicated when rigid bodies are connected by joints, where every joint is represented by a certain constraint.
	i31www.ira.uka.de /projekte/mechanik/publications/details2003.php (1404 words)

	Brazilian Journal of Physics - A review on the dynamics of water (Site not responding. Last check: 2007-10-15)
		The short-time dynamics of the O and H atoms are suggestive of damped oscillatory motions and result from the interactions (''collisions'') with neighboring molecules.
		Previous simulation studies of the nonadiabatic relaxation from excited states[43] and the dynamics of solvent reorganization in response to the photoexcitation of a self-trapped electron in aqueous solution[44] have revealed that the dynamical behavior of this system is extremely rich.
		This is achieved by simulating a collection of hormone replicas in the presence of a unique protein in such a way that the replicas do not interact with each other while the interaction with the protein is scaled by the number of hormone replicas being used in the simulation.
	www.scielo.br /scielo.php?script=sci_arttext&pid=S0103-97332004000100002&lng=en&nrm=iso&tlng=en (8145 words)

	HYLE 6-2 (2000): Biogeochemical Models in the Environmental Sciences
		Dynamical systems have become the formal paradigm in the ‘discovery of complexity’ across a range of disciplines: Dynamical systems as universal paradigm propelled the diffusion of complexity concepts in the empirical sciences and have become the leading paradigm for both conceptual and numerical models of complex phenomena.
		Dynamical systems are the paradigm in the environmental sciences, both as a conceptual background and as the formal base of simulation modeling (Joergensen 1992, Richter 1994, Richter et al.
		The dynamical system paradigm remains within the limits of an exo-physically conceived systems theory which is based on conceptually closed systems and which claims that essential, systemic properties arise from the particular configuration of system components.
	www.hyle.org /journal/issues/6/haag.htm (9256 words)

	The Dynamical Simulation of the NCAR Community Climate Model Version 3 (CCM3) (Site not responding. Last check: 2007-10-15)
		The dynamical simulation of the standard configuration of the latest version of the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM3) is examined, including the seasonal variation of its mean state and its intraseasonal and interannual variability.
		Simulated surface pressures are higher than observed over the subtropics, however, an error consistent with an easterly bias in the simulated trade winds and low-latitude surface wind stress.
		A simulated index of the Southern Oscillation agrees well with the observed, and the model captures the overall structure and magnitude of observed shifts in tropical and subtropical convergence zones and monthly rainfall anomalies associated with the tropical SST changes.
	www.cgd.ucar.edu /cas/abstracts/files/Hurrell1998_4.html (430 words)

	Juergen Zobeley's home
		The simulation of the dynamical behavior of increasingly large cellular systems is hampered by the size and complexity of the underlying biochemical reaction network models.
		In order to reduce the computational demand of the simulations, and also in order to facilitate the identification of the key features of the dynamical systems, the availability of a suitable complexity reduction method must be considered as an indispensable prerequisite.
		This dynamical complexity reduction method relies on the fact that the processes responsible for the dynamics of the biochemical reaction network typically take place on time scales differing by up to several orders of magnitude.
	projects.villa-bosch.de /bcb/people/juergen (504 words)

	Dynamical-simulation software downloads (Site not responding. Last check: 2007-10-15)
		Simulation tool for automatic control systems in the time and frequency domain based on the idea of block diagrams.
		Simulation results are displayed in diagrams and data tables.
		This screen saver is based on an amusing extension of the Game of Life: fidgety s war ms of tiny critters wage a war for the screen space.
	www.freedownloadsoft.com /dynamical-simulation.html (586 words)

	Radially Softening Diffusive Motions in a Globular Protein -- Dellerue et al. 81 (3): 1666 -- Biophysical Journal
		Temperature-dependence of myoglobin dynamics: neutron spectra calculated from molecular dynamics simulations of myoglobin.
		Molecular dynamics simulations of human glutathione transferase P1-1: analysis of the induced-fit mechanism by GSH binding.
		Dynamics of a globular protein as studied by neutron scattering and solid-state NMR.
	www.biophysj.org /cgi/content/full/81/3/1666 (4073 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		This is a dynamical simulation of a vertically vibrated layer of granular material (the system is two-dimensional) driven by a base with a sawtooth profile.
		The simulation region is vertically periodic, and grains leaving through the bottom are reinjected at the top with an inward-directed velocity.
		This demonstrates that (at least in the simulations) vertical vibration is able to produce horizontal size segregation, a totally unexpected phenomenon whose existence has yet to be investigated experimentally.
	www.ph.biu.ac.il /~rapaport/java-apps/vibseg.html (184 words)

	Molecular Dynamics Study of Desulfovibrio africanus Cytochrome c3 in Oxidized and Reduced Forms -- Bret et al. 83 (6): ...
		the dynamics, fluctuations of the radius of gyration of ~0.2%
		FIGURE 6 Dynamical model and crystal-packing: superimposition of 10 structures of the dynamical model of the oxidized form at the end of the dynamics, each averaged over ~50 ps and at successive 50-ps intervals, on top of one of the crystal structure molecules surrounded by its symmetry-related neighbor molecules.
		simulations of lysozyme that the density of the hydration shell
	www.biophysj.org /cgi/content/full/83/6/3049 (9251 words)

	CiteULike: Feature activated molecular dynamics: an efficient approach for atomistic simulation of solid-state ... (Site not responding. Last check: 2007-10-15)
		An efficient approach is presented for performing efficient molecular dynamics simulations of solute aggregation in crystalline solids.
		The remainder of the system is essentially static except for periodic rescaling of the entire simulation cell in order to balance the pressure between the isolated molecular dynamics regions.
		This scaling behavior allows for the full dynamical simulation of aggregation under conditions that are more experimentally realizable than would be possible with standard molecular dynamics.
	www.citeulike.org /user/baaden/article/270130 (453 words)

	Molecular Dynamical Simulation of Synthetic Four-Helix Bundle Ion Channel Protein (Site not responding. Last check: 2007-10-15)
		Zhong QF, Jiang Q, Moore PB, Newns DM, Klein ML A molecular dynamics simulation has been performed on a synthetic membrane-spanning ion channel, consisting of four a-helical peptides, each of which is composed of the amino acids leucine (L) and serine (S), with the sequence Ac-(LSLLLSL)(3)-CONH2.
		In the present simulation, the channel was initially assembled as a parallel bundle in the octane portion of a phase-separated water/octane system, which provided a membrane-mimetic environment.
		An explicit reversible multiple-time-step integrator was used to generate a dynamical trajectory, a few nanoseconds in duration for this composite system on a parallel computer, under ambient conditions.
	www.cmm.upenn.edu /~moore/abs/bioj98ls2.html (313 words)

	OPUS Hohenheim - Models for the representation of ecological systems? The validity of experimental model systems and of ... (Site not responding. Last check: 2007-10-15)
		Dynamical systems - the paradigm for the representation of ecosystems - permit the simultaneous handling of a large number of parameters.
		Dynamical systems are conceptually closed systems and are based on the notion of an abstract state (focussing on 'being').
		Acknowledging the limited predictive capacity of simulation models and the intrinsic perspectivity of the identification of 'relevant' phenomena and parameters and drawing on new forms of knowledge production (as described by science studies), a modified role for model building and for simulation models - particularly with respect to science for policy - is sketched.
	www.uni-hohenheim.de /ub/opus/volltexte/2001/13 (574 words)

	Definition of simulation
		9:...s ''human in the loop'' simulation s, are physical simulation s that include humans, such as the model used in a...
		However if a space simulation game were to be true to physical law it would dif...
		Dynamical simulation is used in [[computer animation]] to assist anima...
	www.wordiq.com /search/simulation.html (710 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		This is a dynamical simulation of a horizontally sheared layer of granular material (the system is two-dimensional).
		The goal is to demonstrate the complex rearrangements that occur inside the material as the upper boundary surface is dragged along.
		Available user controls are buttons to start/stop and reset the simulation, and sliders for regulating the shear speed, vertical load on the upper surface, spring strength, and the number of timesteps between display updates (a larger value produces a faster but less smooth animation).
	www.ph.biu.ac.il /~rapaport/java-apps/grshear.html (139 words)

	cad92 (Site not responding. Last check: 2007-10-15)
		The program performs a kinematic simulation of driving motions and part contacts along with a limited dynamical simulation of gravity, springs, and friction.
		It uses a simple model of dynamics that captures the steady-state effect of forces without the conceptual and conputational cost of full dynamical simulation.
		We demonstrate that the simulation algorithm captures the workings of most mechanisms by surveying 2500 mechanisms from an engineering encyclopedia.
	www.cs.purdue.edu /visctr/abstracts/cad92.html (132 words)

	p03dtu01
		This involves recognizing dynamical processes in the system and setting up the necessary ordinary differential equations (ODE) - and any constraints.
		Simulations are used for two main purposes: to study the evolution in time of a system, and to identify parameters in a model of the system.
		The second arises when the aim of the simulation is to compare simulation results with observations, to determine model parameters.
	www.agrsci.dk /jbt/DaNet/Phd/p03dtu01.htm (214 words)

	Dynamical Simulation in a Driving Simulator Game
		Such simulations can be decomposed into a graphical model responsible for rendering a specific space-configuration of entities within a virtual world and a dynamical model responsible for determining the evolution of this configuration over time.
		Unfortunately dynamical simulation of numerous concurrent phenomena cannot be achieved on reasonable hardware, thus the main goal of many applications is to model only one (or few) aspect of the physical world in detail.
		Although it is a very important and valuable tool in handling such cases, in a driving simulation it is applicable only for handling the collisions of the car body with the ground and other obstacles, which is clearly not the foremost important task in deriving a model for vehicle dynamics.
	www.cescg.org /CESCG-2003/SDeak/index.html (5837 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		Due to the complexity of these systems the interpretation of the experimental results requires a detailed theoretical modeling and dynamical simulation of the ET reactions.
		Next, the size of the ``core'' is systematically increased to achieve numerical convergence for the overall quantum dynamics.
		In addition to the population dynamics of the donor/acceptor states, which is not straightforwardly measured experimentally, we also plan to simulate time-resolved nonlinear optical spectra (e.g.
	www.lrz-muenchen.de /projekte/hlrb-projects/details/h083v_dt.htm (359 words)

	stiff structures
		The simulation starts with the ring positioned at the bottom of the rod.
		Electrostatic repulsion accelerates the ring upward and the rod downward, with the ring reaching a speed of 1.6 km/s relative to the rod (the speed of sound in the rod is ~16 km/s).
		Dynamical simulation illustrates the behavior of a stiff molecule
	e-drexler.com /p/04/04/0410stiffAnim.html (247 words)

	Dynamical simulation \| TutorGig.co.uk Encyclopedia (Site not responding. Last check: 2007-10-15)
		'Dynamical simulation ', in computational physics, is the simulation of systems of objects that are free to move, usually in three dimensions according to Newton's laws of dynamics, or approximations thereto.
		Dynamical simulation is used in computer animation to assist animators to produce realistic motion, in industrial design (for example to simulate crashes as an early step in crash test ing), and in video game s.
		Dynamic Multilevel Methods and the Numerical Simulation of Turbulence
	www.tutorgig.co.uk /ed/Dynamical_simulation (270 words)

	ASL/LSA @ EPFL (Site not responding. Last check: 2007-10-15)
		abstract = {Due to the different properties of the dynamical simulation of multi-body systems, it is important to introduce a classification that allows for the right selection of a simulation type according to the user’s needs.
		The proposed classification divides simulations with respect to the main characteristics, such as speed, accuracy, processing power, preparation work, resulting in the need for very different models of the rover.
		Applying simulation techniques, the rover geometry can be optimized regarding special metrics and the performance of different rovers can be compared.
	asl.epfl.ch /bibtex.php?ID=535 (166 words)

	Abstracts for the IMA "Hot Topics" Workshop: Agent Based Modeling and Simulation, November 3-6, 2003 (Site not responding. Last check: 2007-10-15)
		Computer simulation can be viewed as a computational approach for explicit calculation of local interactions among system piece parts, resulting in a dynamical representation of an overall system composed of those parts.
		By its own nature, this dynamics creates the group of ``elites'', formed by those agents who have strategies that are the most successful in the given situation, and therefore the rest of the agents will tend to follow, imitate, or interact with them, creating a social structure of leadership in the agent society.
		By using the minority game for competition dynamics, here we show that when the substrate network is highly connected, the action network spontaneously develops hubs with a broad distribution of out-degrees, defining a robust leadership structure that is scale-free.
	www.ima.umn.edu /complex/abstracts/11-3abs.html (6899 words)

	Molecular Dynamics group (Site not responding. Last check: 2007-10-15)
		The MD Group concentrates on dynamical simulation of biopolymers and lipid aggregates.
		For processes where quantum-dynamical aspects are important, such as proton and electron transfer, a mixed quantum and classical dynamics is used.
		On the atomic level, classical molecular dynamics (MD) simulations are carried out on systems including up to tens of thousands of particles.
	rugmd4.chem.rug.nl /md.html (153 words)

	Dynamical Systems Simulation Library in C++
		The goal is to produce an useful and easy programming tool for simulation of Dynamical Systems represented in the space state.
		In the DOS implementation, together with the numerical routines to calculate the temporal evolution of a Dynamical System, there is a set of classes designed to plot and to store the results.
		A Dynamical System is any part of the universe selected to study purposes that exibits a certain temporal evolution.
	www.cpdee.ufmg.br /~torres/simul1.html (467 words)

	The Global Dynamics of Cellular Automata
		A great deal of insight can be gained into the behavior of dynamical systems by understanding specific behaviors in terms of the topological properties of their associated trajectories in state space.
		Although much of the work in the state-space analysis of dynamical systems has been carried out in the context of continuous state spaces, many of the concepts and methods carry over to discrete state spaces.
		Concepts such as the degree of spreading of a local patch of the flow field in continuous state spaces have their analogs in the degree of convergence-or "in-degree"-of a node in the flow graph in discrete state spaces.
	www.cogs.susx.ac.uk /users/andywu/gdca.html (2372 words)

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