Catalyst (disambiguation)

A catalyst is a substance which increases the rate of a chemical reaction.

Catalyst may also refer to:

Buildings

Catalyst (building), a skyscraper in Charlotte, North Carolina

Catalyst (museum), a hands-on science centre and chemical industry museum in Widnes in Cheshire in England

Economics and finance

Economic catalyst

Stock catalyst

Events

Catalyst Conference, an annual nondenominational Christian event

Media and entertainment

Games

Catalyst (role-playing game supplements), a series of fantasy role-playing game supplements

Literature and publications

Catalyst (magazine), published by the RMIT University Student Union

Catalyst (novel), by Laurie Halse Anderson

The Catalyst (Doctor Who audio), a 2008 Doctor Who audiobook

Catalyst, a freesheet of the Solidarity Federation

Catalyst, a magazine published by the Commission for Racial Equality in the United Kingdom

Catalyst, a publication of the Union of Concerned Scientists

The Catalyst, a 2015 fantasy novel by Helena Coggan

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Catalyst_(disambiguation)

Catalyst (TV program)

Catalyst is the ABC's primary science journalism television series and the only science show on primetime television in Australia. Launched in 2001, it replaced Quantum, which had ceased the previous year. Catalyst is regularly broadcast on ABC 1 at 8:00 pm on Tuesdays and at 11:30 am Saturdays. Also repeated on ABC News 24 on Saturdays at 4:30 pm.

Catalyst celebrated its tenth year of production in 2010.

Description

The show broadcasts stories on scientific themes, and in particular significant recent developments and discoveries. It focuses primarily on stories relevant to Australia, but the series covers international developments as well. It attempts to convey information in a way that is not only accurate but also interesting and informative to the general population, often discussing the ethical, political, and other implications of scientific discoveries and research as well as the discoveries themselves.

The show's website describes it as follows:

Each week Catalyst brings you stories from Australia and around the world.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Catalyst_(TV_program)

location on Google Map

Catalyst Science Discovery Centre

The Catalyst Science Discovery Centre (originally known as The Museum of the Chemical Industry) is a science centre and museum focusing on chemistry and the history of the chemical industry. It is located near Spike Island in Widnes, Cheshire, and next to the River Mersey. The museum is accredited by the Arts Council England.

The centre contains static exhibitions, hands-on experiments and the Alchemy Theatre which gives shows on chemistry. Family workshops are arranged during school and bank holidays.

The centre is housed in an old four-storey building known as Tower Building constructed around 1860 by John Hutchinson as the administrative centre for his alkali chemical business. In 1989 a glass lift and an enclosed glazed roof-top observation deck, designed by Lord Austin-Smith were added to the building in order to develop it into a museum. In 1994–95, an extension was added to the north to provide an education centre and visitor services. The centre holds a collection of archives relating to the chemical industry, these include documents, photographs and the entire research archive of the ICI General Chemical Division.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Catalyst_Science_Discovery_Centre

Flow network

In graph theory, a flow network (also known as a transportation network) is a directed graph where each edge has a capacity and each edge receives a flow. The amount of flow on an edge cannot exceed the capacity of the edge. Often in operations research, a directed graph is called a network. The vertices are called nodes and the edges are called arcs. A flow must satisfy the restriction that the amount of flow into a node equals the amount of flow out of it, unless it is a source, which has only outgoing flow, or sink, which has only incoming flow. A network can be used to model traffic in a road system, circulation with demands, fluids in pipes, currents in an electrical circuit, or anything similar in which something travels through a network of nodes.

Definition

Let $G = (V,E)$ be a finite directed graph in which every edge $(u,v) \in E$ has a non-negative, real-valued capacity $c(u,v)$ . If $(u, v) \not \in E$ , we assume that $c(u, v) = 0$ . We distinguish two vertices: a source $s$ and a sink $t$ . A flow in a flow network is a real function $f:V \times V \rightarrow \mathbb{R}$ with the following three properties for all nodes $u$ and $v$ :