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Topic: Node (physics)

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	Node (physics) - Wikipedia, the free encyclopedia
		A node is a spatial locus along a standing wave where the wave has minimal amplitude.
		The opposite of a node is an anti-node.
		A voltage node is a current antinode and a current node is a voltage antinode.
	en.wikipedia.org /wiki/Node_(physics) (500 words)

	Node - Wikipedia, the free encyclopedia
		Node (botany), the place on a plant stem where a leaf is attached
		Node (physics), a spatial locus along a standing wave where the wave has minimal amplitude
		Node (networking), a device connected to a network, such as a computer or router
	en.wikipedia.org /wiki/Node (184 words)

	Tennis Raquet Physics
		One of the sweet spots is the vibration node, located near the centre of the strings.
		One node is near the centre of the strings, and the other node is in the handle.
		Brody, H. (1979) Physics of the tennis racket.
	www.physics.usyd.edu.au /~cross/tennis.html (1689 words)

	The Physics Classroom
		The pattern is the result of the interference of two waves to produce these nodes and anti-nodes.) In this pattern, there is only one-half of a wave within the length of the string.
		The third harmonic of a guitar string is produced by adding two nodes between the ends of the guitar string.
		In order to create a regular and repeating pattern for this harmonic, the two additional nodes must be evenly spaced between the ends of the guitar string; this places them at the one-third mark and the two-thirds mark along the string.
	www.physicsclassroom.com /Class/sound/U11L4d.html (2056 words)

	Xj3D Extensions - Particle Systems
		Although various physics models are available, it is not meant to be used as a simulation engine for testing particle behaviour models.
		The geometry node of a shape node is not used at the first level.
		The ExplosionEmitter node is an emitter that generates all the available particles from a specific point in space at the initial time.
	www.xj3d.org /extensions/particles.html (2500 words)

	fUSION Anomaly. Nodes
		Some authors make a distinction between node and element, with an element being a given data type and a node comprising one or more elements as well as any supporting data structures (such as pointers).
		In the grand network we are now assembling, the size of the nodes is collapsing while the quantity and quality of the connections are exploding.
		The nodes around us—the nodes that we are—are not passive switches, but grow in strength and insight through their range of materials, the nature and novelty of their connections and mutual exchanges.
	fusionanomaly.net /nodes.html (595 words)

	Sweet Spots in Tennis Rackets (Site not responding. Last check: 2007-11-06)
		In the wave physics field, the nodes are defined as the particular points that never move at all in a standing wave (a wave that doesn't move along the string).
		First of all, "the node" cannot be the node of the first harmonic because the first harmonic's node is at the frame of the racket.
		For the same reason as the node of first harmonic, the one at the grip is not a sweet spot (Try to hit a ball with grip, if you want.).There are more nodes on the string for the post-second harmonics, but those don't affect as much as the node for second harmonic does.
	www.hesston.edu /academic/faculty/nelsonk/PhysicsResearch/TennisKU/node.htm (633 words)

	3D Theory - Using a scene graph for physics - Martin Baker (Site not responding. Last check: 2007-11-06)
		These nodes are intended to provide high level behaviours for simulations and games, so that when people are designing their own programs they don't have to develop and distribute their own animation and physics engine.
		The reason for allowing a random factor is to allow a node to appear many times in a scene (by using DEF/USE, PROTO or Multiple Node) but to cause each instance of the node to start travelling in different directions.
		This node sets up a behavior to detect a collision between its parent (usually a TransformGroup) and any other node, when a collision is detected then a message will be sent to each collisionAction in the group.
	www.euclideanspace.com /threed/animation/datastructure/usescenegraph (3633 words)

	Lab and let learn - HSC 2004 - www.smh.com.au
		The 2004 HSC Physics examination will be based on the current syllabus, amended in October 2002, which was used to set the 2003 exam.
		Physics HSC exam papers, along with Notes from the Examination Centre (including Marking Guidelines), are available on the Board of Studies website.
		The Physics examination will be three hours long, with an additional five minutes of reading time at the start, and will be similar in style and structure to the 2003 paper.
	www.smh.com.au /articles/2004/06/02/1086058902690.html (996 words)

	The physics of the Web (July 2001) - Physics World - PhysicsWeb
		The Internet forms a physical network, the nodes of which are "routers" that navigate packets of data from one computer to another, and groups of routers and computers that are called "domains".
		The links that join the nodes together are the various physical connectors, such as phone wires and optical cables (figure 2).
		Due to the physical nature of the connections, this network was expected to be different from the Web, where adding a link to an arbitrary remote page is as easy as linking to a computer in the next room.
	physicsweb.org /article/world/14/7/09 (4427 words)

	Physics
		The 64 nodes are interconnected on the motherboard as a
		Normally the lattice size on a single node will be left as a run-time variable so a given piece of complied code can be run on a variety of machine topologies yielding results for a number of actual lattice volumes.
		As the number of nodes of a parallel machine is increased to increase total computational power, the size of the problem assigned to each node will decrease.
	phys.columbia.edu /~cqft/98gbell/98gbell.html (2164 words)

	ACQAO
		Its significance was recognized with Nobel Prizes in Physics in 2001 for the first observation of BEC in 1995.
		This project is concerned with exploring the physics of the superfluid phase transition in strongly interacting Fermi gases and the study of dissociation of molecular Bose-Einstein condensates (BEC) as means of producing strongly correlated and entangled atomic ensembles.
		These landmark experiments in physics realised a new state of matter in which the de Broglie wavelengths of ultracold atoms overlap to form a coherent, macroscopic quantum fluid with a single collective phase.
	www.physics.uq.edu.au /ACQAO/students.htm (2799 words)

	solving op amp circuits. - Physics Help and Math Help - Physics Forums
		And if it is indeed connected to node 3 then how would I go about doing nodal analysis at that node since I don't know the current to the left of the node, I just have a voltage source.
		Where x is the resistance, v3 is the voltage at node 3, and v1 is the voltage at node 6.
		Whether the varying resistor is 100 ohms or 1kohms is of no concern in the amplifier circuit because it effectively acts as a potentiometer OR potential divider.
	www.physicsforums.com /showthread.php?t=65383&goto=nextoldest (336 words)

	Loop Rule - Physics Help and Math Help - Physics Forums
		but it is something we don't put into the first sophmore physics and EE texts, because we don't want to confuse the hell out of students and we are able to model this added voltage as a lumped voltage source in the loop and then say all of the voltages add up to zero.
		edit: just to be clear KVL, KCL, Loop and Node analyses work well when the wavelength of the signal in the circuit is much longer than the dimensions of the circuit and components.
		when that is the case, you gotta do physics rather than just circuit analysis.
	www.physicsforums.com /showthread.php?threadid=85669 (1455 words)

	The MILC Code (version: 6.20sep02)
		Each processor is treated as though it is a separate node, requiring a communications operation to exchange data, regardless of whether data is in commonly shared memory or truly off node.
		on one node to the integers from 0 to
		Each node or site uses a different multipler in the congruence generator and different initial state in the shift register, so all are generating different sequences of numbers.
	www.physics.utah.edu /~detar/milc/milcv6.html (7752 words)

	Novodex Physics Exporter and Tools for 3DS Max (Site not responding. Last check: 2007-11-06)
		A collection of rigid bodies might be represented in a tree hierarchy in max.
		We are working with the collada consortium to standardize the physics representation.
		In addition to the problems with competing versions and sharing.max files with others, using subclasses would limit the types of objects that can become physics objects.
	www.melax.com /3dsmax/faq.html (1107 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		The main goal of the new SPAN architecture is for a node that is located across the country through two routing centers to be as transparently accessible as a SPAN node sharing the same machine room with the originating system.
		Utilities for all DEC SPAN Nodes A. Graphics Display Utilities One of the main objectives of the SPAN system project is to accommodate coordinated data analysis without leaving one's institution.
		D. Remote Node Information Files As specified in the document "Management of the Space Physics Analysis Network", (Green, et al., 1986) all nodes on the SPAN are required to maintain two node specific information files in their DECnet default directories.
	cctr.umkc.edu /ftp/anon_ftp/NET/NETWORK_INFO/SPAN.INFO (9936 words)

	Scene Graphs and Constrained Physics - DevMaster.net Forums
		Combining physics with your graphics can indeed raise some confusing questions and the answeres are often made difficult by how much time we have spent on the graphics side of the issue; we tend to view the world from that technological perspective.
		For example, if the transformation at a scenegraph node is interpreted as local (in the coordinate system of the proximal body or graphic), then the transform as provided by the physics system should be local as well.
		I have a real-time physics engine that I license and this is how I have approached building the demos and incorporating the engine into third party applications such as CGI training simulations and human/vehicle models.
	www.devmaster.net /forums/showthread.php?t=1798 (664 words)

	[No title]
		When the axon is stimulated at a particular Node of Ranvier, the Na channels (this is another specialized protein in the cell membrane) at that node open up and allw the free diffusion of Na ions into the cell.
		When the potential at the next Node of Ranvier exceeds a threshold (somewhere between —70 mV and zero), the Na channel is stimulated to open.
		The distance between the nodes divided by this time is the velocity of propagation of the nerve impulse along the axon.
	www.physics.odu.edu /hyde/Teaching/Spring05/Lectures/NerveImpulse.doc (1050 words)

	PhysOrgForum Science, Physics and Technology Discussion Forums -> Please proofread
		If you need any help on your scientific problem or you want to ask a question related to physics or technology, then PhysOrg is the right place to be, since a lot of experts from various fields visit PhysOrg Forums every day.
		I.E. Node at end says we want to go farward, but there is a rock next to me. This gets shuffled to node 2.
		If a node becomes disabled, it would be possible for the two remaining parts to eject the damaged node and re-join to create a new device...
	forum.physorg.com /index.php?showtopic=1388 (1310 words)

	C-Mod Physics Operator's Handbook
		Following each run, the Physics Operator is required to prepare a summary of the day's activities, describing the conduct of the run from the operational point of view.
		Physics Operators for each run are assigned (in principle) at least one week in advance.
		These nodes are used to check the compatibility of old PCS trees or segments with the current state of the hybrid control system.
	www.psfc.mit.edu /~wolfe/cmod/physop/handbook.html (19444 words)

	Physics (Site not responding. Last check: 2007-11-06)
		Professor Culbertson demonstrates how holding the plate forces a node at that position.
		Professor Voss has his finger on a node while stroking the antinode with the bow.
		Dots are superimposed on the screen every half second to mark the position of the air glider.
	pirt.asu.edu /detail_10.asp?ID=1124&offset=25 (459 words)

	QCDSP Machines: Design, Performance and Cost (Site not responding. Last check: 2007-11-06)
		Over that past five years a group in the Physics Department at Columbia University, together with collaborators from four other institutions, has designed and built a number of QCDSP machines[1][2][3][4] [5][6][7].
		This node now has a total manufacturing cost of $80, a peak computational speed of 50 Mflops and an off-node bandwidth of 40 Mbytes/sec.
		While all nodes in the machine can be joined together to form a single, large machine, it is also possible to cable the machine as a series of separate computers, each joined to a separate SCSI port on one or many UNIX host machines.
	www.ccd.bnl.gov /visualization/sc98/Christ1538 (2501 words)

	Alabama A & M University: Department of Physics (Site not responding. Last check: 2007-11-06)
		Ravindra B. Lal, University Eminent Scholar and Professor of physics, at Alabama A and M University is one of the pioneers to perform the crystal growth experiments in microgravity aboard Spacelab-3 and International Microgravity Laboratory (IML-1) in mid-80's and early-90's.
		Under his leadership, over the period of last two decades department of physics has established a center of excellence in research and training in the field of nonlinear optics and crystal growth technology.
		The physics department has extensive state of the art crystal growth facilities for various materials for sensors and electro-optic devices.
	www.physics.aamu.edu (486 words)

	[No title]
		Holmgren: [see his e-mail about dcache, planned at FNAL] It looks like one file per node is the best way to go with dcache.
		Edwards: On our clusters, having one disk per node is the easiest way to designate nodes.
		On the GigE machine, we submit to fixed partitions, so we always know which disk is associated with which node number.
	physics.bu.edu /~brower/SciDAC/doc/minutesAug12-04.txt (576 words)

	The MILC Code (version: 4.0)
		This last file is rather special being where the physical structure of the lattice is defined.
		To speed up gathers, there are routines which prepare tables on each node containing information about what sites must be sent to other nodes or received from other nodes.
		The existence of assembler code for the DEC Alpha workstation is a byproduct of producing T3D assembler--the nodes use the same chip, so we just need to change the assembler directives, mneumonics, and stack usage conventions.
	cliodhna.cop.uop.edu /~hetrick/milc/milc.html (5707 words)

	[No title]
		suppose, for instance, row/col merely selected the destination node, and the first 64 bits of the data burst defined the memory address (in the destination node's address space).
		Layered software running on your cluster nodes can do this for you but the implementation details vary depending on which software package you are using.
		Apparently all nodes get assigned the same nodeid so I'm getting an error like: node33: 2632-068 This node has the same internal identifier as node30 and cannot be included in the domain definition.
	www.scyld.com /pipermail/beowulf/2004-August.txt (14428 words)

	The Richmond Physics Clusters
		it # copies data to a slave node and can leave the data there if you # desire.
		# foreach $line (@runno) { chomp($line); # # get the node number and be careful about skipping the bad ones.
		# called from submit_eod3d.pl and submit_eod3c.pl. # - gpg 12/03/02 # # set up the environment including the node and run # number assignments that come from the arguments of the # script.
	www.richmond.edu /~ggilfoyl/research/spiderwulf/submit_eod3c.html (567 words)

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