Modeling efforts to simulate the environment from the Sun to the Earth use several method including ( a ) magnetohydrodynamics in which the environment is treated as a fluid, ( b ) particle in cell in which non-fluid interactions are handled within a cell and then a series of cells are connected together to describe the environment, ( c ) first principles in which physical processes are in balance ( or equilibrium ) with one another, ( d ) semi-static modeling in which a statistical or empirical relationship is described, or a combination of several of these methods.

Copious amounts of K-Y Jelly were also used to simulate saliva and to give the eponymous Alien of the 1979 film an overall slimy appearance as well as the blood of the eponymous Predator of the 1985 film which was mixed with Chemiluminescence fluid from green glowsticks.

ANSYS CFX is a commercial Computational Fluid Dynamics ( CFD ) program, used to simulate fluid flow in a variety of applications.

Perhaps the first book to effectively convey the importance of trauma-free childbirth to the wider public was Birth Without Violence ( 1975 ), by French obstetrician Dr. Frederick Leboyer ( born 1918 ), which helped popularize the practice of placing newly-born infants in a tub of warm water, known as a " Leboyer bath " to simulate the familiar pre-natal environment of warm amniotic fluid.

For these reasons it is possible to simulate fluid motion using SPH in real time.

Ray tracing aims to simulate the natural flow of light, interpreted as particles.

In a typical design flow, an FPGA application developer will simulate the design at multiple stages throughout the design process.

In order to solve for the velocity of inviscid flow around a wing, the Kutta condition must be applied to simulate the effects of viscosity.

A mathematical model used to simulate river or stream flow and calculate water quality parameters is hydrological transport model.

* A model based development tool like VisSim lets you create and simulate graphical data flow and UML State chart diagrams of components like digital filters, motor controllers, communication protocol decoding and multi-rate tasks.

* DEM can be used to simulate a wide variety of granular flow and rock mechanics situations.

The resultant high temperature hypersonic flow can be used to simulate atmospheric re-entry of spacecraft or hypersonic craft, again with limited testing times.

Many other models have been developed to work with MODFLOW input and output, making linked models which simulate several hydrologic processes possible ( flow and transport models, surface water and groundwater models and chemical reaction models ), because of the simple, well documented nature of MODFLOW.

Additionally, these companies or authorities have CFD software and experience to simulate the complicated flow around ships and their rudders and propellers numerically.

The economic system in Victoria attempts to simulate the flow of resources in a world market.

The resultant high temperature hypersonic flow can be used to simulate atmospheric re-entry of spacecraft or hypersonic craft, again with limited testing times.

Wind Atlas Analysis and Application Program ( WAsP ) is a tool used in the wind energy industry to simulate wind flow over terrain and estimate the long-term energy production of wind turbines and wind farms.

Since the beginning of the 20th century ABMs have been deployed in architecture and urban planning to evaluate design and to simulate pedestrian flow in the urban environment.

Some form of limited Fluid dynamics simulation is sometimes provided to simulate water and other liquids as well as the flow of fire and explosions through the air.

Often multiple heat exchangers can be used to simulate the counter current flow of a single large exchanger.

Directions of gas flow and CO < sub > 2 </ sub > content of gas emissions are indicated using LEDs, and water vapour is used to simulate the gas emissions from the power station.

Since chemistry and nanotechnology rely on understanding quantum systems, and such systems are impossible to simulate in an efficient manner classically, many believe quantum simulation will be one of the most important applications of quantum computing.

Russian filming locations were not possible due to the Cold War, and the film had to be shot in Vienna and other locations in Austria to simulate many of the Eurasian story locations.

While ELIZA and PARRY were used exclusively to simulate typed conversation, many chatterbots now include functional features such as games and web searching abilities.

These tricks simulate many of those portrayed on film, such as turning into animals or mist, sleeping in the ground or having unnatural charisma and powers of suggestion.

Segmentation cannot be turned off on x86-32 processors ( this is true for 64-bit mode as well, but beyond the scope of discussion ), so many 32-bit operating systems simulate a flat memory model by setting all segments ' bases to 0 in order to make segmentation neutral to programs.

We know that we can decide membership of H < sub > f </ sub > by way of a deterministic Turing machine that first calculates f (| x |), then writes out a row of 0s of that length, and then uses this row of 0s as a " clock " or " counter " to simulate M for at most that many steps.

The " seats " are traditionally in the form of rows of wooden horses or other animals mounted on posts, many of which are moved up and down via gearwork to simulate galloping, to the accompaniment of looped circus music.

The competition uses realistic ROV-based missions that simulate a high-performance workplace environment, focusing on a different theme that exposes students to many different aspects of marine-related technical skills and occupations.

There are also an increasing range of products that use digital signal processing and digital modeling technology to simulate many different combinations of amp and cabinets.

General-purpose supercomputers have been used to simulate protein folding, but such systems are intrinsically expensive and typically shared between many different research groups.

Some main characteristics of lyocell fibers are that they are soft, absorbent, very strong when wet or dry, and resistant to wrinkles ; lyocell fabric can be machine-or hand-washed or drycleaned, it drapes well, and it can be dyed many colors, and can simulate a variety of textures such as suede, leather, and silk.

Hero Games ( DOJ, Inc dba Hero Games ) is the publisher of the Hero System, a generic roleplaying rules set that can be used to simulate many different genres, and was the co-developer of the Fuzion system.

SAR has been used in radio astronomy for many years to simulate a large radio telescope by combining observations taken from multiple locations using a mobile antenna.

They quickly concluded that Parsons's design could be greatly improved ; if the machine did not simply cut at points A and B, but instead moved smoothly between the points, then not only would it make a perfectly smooth cut, but could do so with many fewer points-the mill could cut lines directly instead of having to define a large number of cutting points to " simulate " a line.

For backgrounds, parallax effects attempt to simulate depth, and can be observed in many areas throughout the game.

The game makes great use of many Amiga features such as scales of colors done with raster lines, halfbrite graphics mode for the between-level pictures, three layers of parallax scrolling using dual-playfield mode, in-game palette swapping and continuous flashing of the background palette to simulate additional colors.

Today, many rag dolls are commercially produced to simulate the features of the original home-made dolls, such as simple features, soft cloth bodies, and patchwork clothing.

Lackey CCG is an engine that attempts to simulate many card games.

The terrain is constructed to simulate a hive city on the planet Necromunda, a dystopian futuristic city resembling a termite mound many miles high.

Owing to this, many modern paint packages are programmed to simulate the blending of color in the same way paint would blend on a canvas ; proficiency with traditional media is often paramount to a concept artist's ability to use painting software.

It was initially proposed in 1963 by Joseph Smagorinsky to simulate atmospheric air currents ,< ref name =" Smagorinsky_1963 "> and many of the issues unique to LES were first explored by Deardorff ( 1970 ).

A recent revision using a smaller number of faster computers, with the programs written in the Java programming language, can simulate ten times as many photons in the same amount of time.

So many vehicles have power windows that some people no longer understand the ( formerly ) common sign from another driver of using their hand to simulate moving a window crank to indicate that they wish to speak with someone ( stopped at a light or in a parking lot ).

The adaptive resolution of smoothed-particle hydrodynamics, combined with its ability to simulate phenomena covering many orders of magnitude, make it ideal for computations in theoretical astrophysics.