SUMMARY / RELATED TOPICS

Simulink

Simulink is a MATLAB-based graphical programming environment for modeling and analyzing multidomain dynamical systems. Its primary interface is a graphical block diagramming tool and a customizable set of block libraries, it offers tight integration with the rest of the MATLAB environment and can either drive MATLAB or be scripted from it. Simulink is used in automatic control and digital signal processing for multidomain simulation and model-based design. MathWorks and other third-party hardware and software products can be used with Simulink. For example, Stateflow extends Simulink with a design environment for developing state machines and flow charts. MathWorks claims that, coupled with another of their products, Simulink can automatically generate C source code for real-time implementation of systems; as the efficiency and flexibility of the code improves, this is becoming more adopted for production systems, in addition to being a tool for embedded system design work because of its flexibility and capacity for quick iteration.

Embedded Coder creates code efficient enough for use in embedded systems. Simulink Real-Time, together with x86-based real-time systems, is an environment for simulating and testing Simulink and Stateflow models in real-time on the physical system. Another MathWorks product supports specific embedded targets; when used with other generic products and Stateflow can automatically generate synthesizable VHDL and Verilog. Simulink Verification and Validation enables systematic verification and validation of models through modeling style checking, requirements traceability and model coverage analysis. Simulink Design Verifier uses formal methods to identify design errors like integer overflow, division by zero and dead logic, generates test case scenarios for model checking within the Simulink environment. SimEvents is used to add a library of graphical building blocks for modeling queuing systems to the Simulink environment, to add an event-based simulation engine to the time-based simulation engine in Simulink.

Therefore in Simulink any type of simulation can be done and the model can be simulated at any point in this environment. Different type of blocks can be accessed using the Simulink library browser, and therefore the benefit could be taken out from this environment efficiently. Modelica OpenModelica JModelica.org Simcenter Amesim Dymola EcosimPro LabVIEW ModelCenter OpenMDAO Simplorer Web based simulation Wolfram SystemModeler Xcos 20-sim Official website

Douglas-Daly Experiment Station

The Douglas-Daly Experiment Station was an extensive research site of the Northern Territory Administration of the Government of Australia and, after statehood, of the Northern Territory Government. It formed part of a string of similar research sites in northern Australia. Located at the junction of the Douglas and Daly Rivers and covering an area of 100 km², the site spanned three major soil types of the Top End of the Northern Territory - Blain and Florina soil types; the climate is hot-humid tropical with a distinct six-month dry season and an annual rainfall of around 1 m. It was used for pasture and grazing experiments with its main research activity beginning in the 1960s and continuing until the break-up of the site into development farms in the 1980s. Research from the site is documented in scientific journal papers and annals of the NTA. Among the researchers on the site have been Bruce Franks, John Sturtz, John Austin and Lindsay Falvey, who were supported by the manager Heinz Mollman.

The site was used by CSIRO for the rock-phosphate research of Ray Swaby. The research farm has hosted a primary school for the children of farm employees and local residents since 1982. In 2018, the school, operated by the Northern Territory Government had a total enrolment of 12 students and a teaching staff of three; the Douglas-Daly Research Farm has been the site of an official weather station since January 1968. Australian Journal of Experimental Agriculture and Animal Husbandry 17:724-727. "Response of steers to dry season supplementation on improved pastures.". Douglas Daly School website