What is "node"

Node \Node\ (n[=o]d), n. [L. nodus; perh. akin to E. knot. Cf. Noose, Nowed.]

1. A knot, a knob; a protuberance; a swelling.

2. Specifically:

   1. (Astron.) One of the two points where the orbit of a planet, or comet, intersects the ecliptic, or the orbit of a satellite intersects the plane of the orbit of its primary.

   2. (Bot.) The joint of a stem, or the part where a leaf or several leaves are inserted.

   3. (Dialing) A hole in the gnomon of a dial, through which passes the ray of light which marks the hour of the day, the parallels of the sun's declination, his place in the ecliptic, etc.

   4. (Geom.) The point at which a curve crosses itself, being a double point of the curve. See Crunode, and Acnode.

   5. (Mech.) The point at which the lines of a funicular machine meet from different angular directions; -- called also knot.
      --W. R. Johnson.

   6. (Poet.) The knot, intrigue, or plot of a piece.

   7. (Med.) A hard concretion or incrustation which forms upon bones attacked with rheumatism, gout, or syphilis; sometimes also, a swelling in the neighborhood of a joint.
      --Dunglison.

   8. (Mus) One of the fixed points of a sonorous string, when it vibrates by aliquot parts, and produces the harmonic tones; nodal line or point.

   9. (Zo["o]l.) A swelling.

3. (Math., Computers) A special point in a graph or diagram which is attached to other points by links. It is often labeled and represented graphically as a box or circle. A node may represent any object which is related to other objects in a conceptual structure that can be represented as a graph, the relations being represented as links between the nodes.

4. (Anat.) A small mass of tissue differing from other tissue in its immediate vicinity; as, a lymph node.

   Ascending node (Astron.), the node at which the body is passing northerly, marked with the symbol [astascending], called the Dragon's head. Called also northern node.

   Descending node, the node at which the body is moving southwardly, marked thus [astdescending], called Dragon's tail.

   Line of nodes, a straight line joining the two nodes of an orbit.

early 15c., "a knot or lump," from Latin nodus "knot" (see net (n.)). Originally borrowed c.1400 in Latin form, meaning "lump in the flesh." Meaning "point of intersection" (originally of planetary orbits with the ecliptic) first recorded 1660s.

n. 1 A knot, knob, protuberance or swelling. 2 (context astronomy English) The point where the orbit of a planet, as viewed from the Sun, intersects the ecliptic. The ascending and descending nodes refer respectively to the points where the planet moves from S to N and N to S. The respective symbols are ☊ and ☋. 3 (context botany English) A stem node. 4 (context computer networking English) A computer or other device attached to a network. 5 (context engineering English) The point at which the lines of a funicular machine meet from different angular directions; -- called also knot. 6 (context geometry English) The point at which a curve crosses itself, being a double point of the curve. See Crunode, and Acnode. 7 (context graph theory English) A vertex or a leaf in a graph of a network, or other element in a data structure. 8 (context medicine English) A hard concretion or incrustation which forms upon bones attacked with rheumatism, gout, or syphilis; sometimes also, a swelling in the neighborhood of a joint. 9 (context physics English) A point along a standing wave where the wave has minimal amplitude. 10 (context rare English) The knot, intrigue, or plot of a piece. 11 (context technical English) A hole in the gnomon of a sundial, through which passes the ray of light which marks the hour of the day, the parallels of the Sun's declination, his place in the ecliptic, etc. 12 (cx linguistics English) The word of interest in a KWIC, surrounded by left and right cotexts.

1. n. a connecting point at which several lines come together

2. any thickened enlargement [syn: knob, thickening]

3. (physics) the point of minimum displacement in a periodic system [ant: antinode]

4. (astronomy) a point where an orbit crosses a plane

5. the source of lymph and lymphocytes [syn: lymph node, lymph gland]

6. any bulge or swelling of an anatomical structure or part

7. (computer science) any computer that is hooked up to a computer network [syn: client, guest]

In general, a node is a localised swelling (a " knot") or a point of intersection (a vertex). Node may refer to:

A node is a point along a standing wave where the wave has minimum amplitude. For instance, in a vibrating guitar string, the ends of the string are nodes. By changing the position of the end node through frets, the guitarist changes the effective length of the vibrating string and thereby the note played. The opposite of a node is an anti-node, a point where the amplitude of the standing wave is a maximum. These occur midway between the nodes.

A node is a basic unit used in computer science. Nodes are devices or data points on a larger network. Devices such as a personal computer, cell phone, or printer are nodes. When defining nodes on the internet, a node is anything that has an IP address. Nodes are individual parts of a larger data structure, such as linked lists and tree data structures. Nodes contain data and also may link to other nodes. Links between nodes are often implemented by pointers.

The behaviour of a linear autonomous system around a critical point is a node if the following conditions are satisfied:

Each path converges to the critical point as t → ∞ (or as t →  − ∞). Furthermore, each path approaches the point asymptotically through a line.

Node is an Italian death metal band formed in Milan in 1994 and currently signed to Punishment 18 Records. Their last (sixth) full-length album is titled Cowards Empire.

In communication networks, a node ( Latin nodus, ‘knot’) is either a connection point, a redistribution point (e.g. data communications equipment), or a communication endpoint (e.g. data terminal equipment). The definition of a node depends on the network and protocol layer referred to. A physical network node is an active electronic device that is attached to a network, and is capable of creating, receiving, or transmitting information over a communications channel. A passive distribution point such as a distribution frame or patch panel is consequently not a node.

In electrical engineering, node, refers to any point on a circuit where two or more circuit elements meet. For two nodes to be different, their voltages must be different. Without any further knowledge, it is easy to establish how to find a node by using Ohm's Law: V=IR. When looking at circuit schematics, ideal wires have a resistance of zero. Since it can be assumed that there is no change in the potential across any part of the wire, all of the wire in between any components in a circuit is considered part of the same node.

Voltage = Current * Resistance
since voltage is a measure of potential difference, the voltage between any two parts of the same node is:

V= (Current) * 0

So at any two points on the same branch of the circuit, the change in potential difference is 0. Therefore, throughout the entire node the voltage is the same.

In this circuit diagram the voltage in the green node is the same throughout, likewise, the voltages in the blue node and the red node are the same throughout.

In most cases, the voltage difference between one point on a piece of metal (such as a copper wire), and the voltage at another point of the same piece of metal or on other bits of metal with metal-to-metal contact with the first piece of metal, is so small that it is usually considered insignificant. So every bit of that connected metal can be considered part of the same node.

Some notable exceptions, where the voltage difference is large enough to become significant, include:

• high-precision resistance measurements using a Kelvin connection
• the difference in voltage between ground and neutral, between the " neutral wire" and the " safety ground in a domestic AC power plugs and sockets, can be fatal. A properly installed electrical system connects them together at one (and only one) location, leading many people to the fatally incorrect conclusion that they are at "the same" voltage, or that the safety ground is "redundant and unnecessary".
• the Seebeck effect and the Peltier effect
• joints involving aluminium wire

Dots used to mark nodes on a circuit diagram are sometimes referred to as meatballs.

Nodes are fictional, naturally occurring phenomena in Ian Irvine’s The Three Worlds Cycle of novels. They often occur in places where there is a significant landmark, such as on a hill or mountain.

Nodes are places where the Secret Art can be used more successfully. They generate the field, which mancers draw upon to work their Art. Nodes also generate The Strong Forces. At first it is only speculation about the existence of The Strong Forces and the weak field is all that mancers can draw upon without being anthracised.

The Lyrinx learn to create Torgnadrs or node-drainers that drain the node of the field and render anything that draws power from it useless. Mancers who cannot draw from a distat node's field must rely on charged crystals, while clankers, constructs and any other devices of the Art will not work. There are also rare places called anti-nodes, where the Art does not work or is at least greatly reduced.

A node In the Unified Modeling Language (UML) is a computational resource upon which UML artifacts may be deployed for execution.

There are two types of nodes: device nodes and execution environments.

• A device represents hardware devices: a physical computational resource with processing capability upon which UML artifacts may be deployed for execution. Devices may be complex (i.e., they may consist of other devices).
• An execution environment represents software containers (such as operating systems, JVM, servlet/EJB containers, application servers, portal servers etc.) This is a node that offers an execution environment for specific types of components that are deployed on it in the form of deployable artifacts.

Execution environments can be nested. Nodes can be interconnected through communication paths to define network structures. A communication path is an "association between two DeploymentTargets, through which they are able to exchange signals and messages".

NODE+ ( wireless sensor platform) is a first-generation handheld sensor measuring 1 inch in diameter and 3.75 inches wide that communicates wirelessly through low-energy Bluetooth 4.0 with Apple iOS devices.

NODE+ has been attributed in the media as a “ Swiss Army knife of sensors,” similar to the “ tricorder from Star Trek,” and as a “powerhouse of quality sensors” that can “measure anything.”

In September 2014, 16 interchangeable sensor modules were available for purchase that can detect color, gases, ambient temperature, barometric pressure, motion, surface temperature and other qualities.

Mobile applications that display the data transmitted by the NODE can be developed through an open application programming interface (API), although mobile app developers must obtain a commercial license from Variable Inc. prior to selling a mobile app that uses Node+ sensors for commercial purposes.

Node+ is available in educational settings through a partnership with Vernier Software & Technology. NODE+ is being sold for use in classrooms and educational institutions.NODE+ is also being used to support a variety of academic research studies. Additionally, NODE+ is being used as a platform to help industries worldwide develop Internet of Things (IoT) strategies.

NODE+ is manufactured in the United States of America.

Node is the third full-length album from Australian metalcore band Northlane. It was released by We Are Unified and Rise on 24 July 2015. This is the first album to feature vocalist Marcus Bridge after the departure of Adrian Fitipaldes in 2014. The band released two promotional singles, "Ra" and "Leech" respectively. "Ra" was handed out to fans as a free-download gift for supporting the band. "Leech" was released as a promotional single after the band began an interactive puzzle with clips of the song, combining all of the pieces together will create the song in its full length. A previous November 2014 single, "Rot", was re-recorded for the release of Node.