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	Encyclopedia: Rigid designation
		In modal logic and the philosophy of language, a term is said to be a rigid designator when it picks out the same thing in all possible worlds in which that thing exists (and picks out nothing in those possible worlds in which it does not exist).
		Rigid designators are contrasted with non-rigid or flaccid designators, which may pick out different things in different possible worlds.
		The notion of rigid designation was first introduced by Saul Kripke in the lectures that became Naming and Necessity, in the course of his argument against descriptivist theories of reference.
	www.nationmaster.com /encyclopedia/Rigid-designation (593 words)

	PlanetMath: rigid
		Instead, it describes in what sense the adjective rigid is typically used in mathematics, by mathematicians.
		Harmonic functions on the unit disk are rigid in the sense that they are uniquely determined by their boundary values.
		This is version 8 of rigid, born on 2004-09-24, modified 2005-05-04.
	planetmath.org /encyclopedia/Rigid.html (179 words)

	Rigid Contact Lenses
		Rigid and soft contact lenses are the two main types of corneal contact lenses available to day.
		Rigid contact lenses get their name because they are made from inflexible or minimally flexible plastic.
		Rigid lenses also are commonly prescribed in patients who have suffered trauma to the cornea or who have corneal diseases such as keratoconus.
	www.uic.edu /com/eye/LearningAboutVision/EyeFacts/RigidContactLenses.shtml (833 words)

	Rigid Bronchoscopy: Indications and Technique (Site not responding. Last check: 2007-10-29)
		Training in rigid bronchoscopy has been an issue for a number of years, primarily because of the paucity of pulmonary experts, and because rigid bronchoscopy, increasingly used as a therapeutic tool for treating patients with tracheobronchial obstruction, can be dangerous in inexperienced hands.
		As the bronchoscope is inserted between the vocal cords, it is rotated slightly and kept in the midline to avoid striking the beveled edge of the rigid bronchoscope against the lateral walls of the cricoid.
		Most complications of rigid bronchoscopy are due to poor insertion techniques, prolonged trauma of the larynx and vocal cords, or failure to heed the warnings of hypercapnia, hypoxemia, or hemodynamic instability.
	www.tracheostomy.com /surgery/bronch/technique.htm (2550 words)

	Rigid Body Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-10-29)
		In physics, a rigid body is an idealisation of a solid body of finite size in which deformation is neglected.
		The configuration space of a rigid body with one point fixed is given by the underlying manifold of the rotation group SO(3).
		Two rigid bodies are said to be different (not copies) is that there is no proper rotation from one to the other.
	artisticnudity.com /encyclopedia/Rigid_body (928 words)

	Rigid - Wikipedia, the free encyclopedia
		By the fundamental theorem of algebra, polynomials in C are rigid in the sense that any polynomial is completely determined by its values on any countably infinite set, say N, or the unit disk.
		Linear maps L(X,Y) between vector spaces X, Y are rigid in the sense that any L ∈ L(X,Y) is completely determined by its values on any set of basis vectors of X.
		This article incorporates material from rigid on PlanetMath, which is licensed under the GFDL.
	en.wikipedia.org /wiki/Rigid (192 words)

	Oregon DEQ Rigid Plastic Container Recycling Rate for 1999 (Site not responding. Last check: 2007-10-29)
		This is because the recycling rate for rigid plastic containers in the aggregate has exceeded the legal requirement of 25 percent every year since 1993, the first year that DEQ calculated the rigid plastic container recycling rate.
		To reclassify the material into "rigid plastic containers" or "other plastic," DEQ made calls to major plastics collectors and processors to find out how much of the plastics they reported on their annual material recovery survey form were rigid plastic containers.
		In many cases, virtually all of the material handled by collectors was rigid plastic containers, collected either separately, as in the case of deposit beverage containers, or commingled, as in the case of mixed bottles collected curbside from households in much of the state.
	www.deq.state.or.us /wmc/solwaste/rpc2001.html (2280 words)

	Paving Expert - AJ McCormack and Son - Block Paving - Rigid Block and Brick Pavements
		The majority of brick paving in the UK is laid as a flexible pavement and rigid paving is normally used for special applications, usually commercial.
		Rigid brick pavements often require movement joints and therefore need to be designed and constructed by professionals, and are not suited to DIY, unless you are skilled in bricklaying.
		The skills required for constructing a rigid pavement are not the same as those skills used in flexible paving construction.
	www.pavingexpert.com /rigidbpv.htm (1604 words)

	Rigid designator -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-29)
		Rigid designators are contrasted with non-rigid or (additional info and facts about flaccid designator) flaccid designators, which may pick out different things in different possible worlds.
		The notion of rigid designation was first introduced by (additional info and facts about Saul Kripke) Saul Kripke in the lectures that became Naming and Necessity, in the course of his argument against descriptivist theories of reference.
		Kripke argued — against both the Russellian analysis and several attempted refinements of it — that such descriptions could not possibly mean the same thing as the name "Bismarck," on the grounds that proper names such as "Bismarck" always designate rigidly, whereas descriptions such as "the first Chancellor of the German Empire" do not.
	www.absoluteastronomy.com /encyclopedia/r/ri/rigid_designator.htm (545 words)

	Rigid Goldenrod (Solidago rigida)
		Rigid goldenrod is one of the most common native plants in North Dakota, and is also found from Ontario to British Columbia south to New Mexico, at elevations up to 7,500 ft.
		Rigid goldenrod either receives some use as forage when livestock numbers are high or else propagates more successfully under the better soil moisture conditions that result from moderate or light grazing, because the plant is more common in pastures that are not heavily used.
		Rigid goldenrod was first described for science by the Swedish father of modern plant nomenclature Carl von Linne (Linnaeus) in his monumental Species Plantarum of 1753.
	www.npwrc.usgs.gov /resource/plants/wildflwr/species/solirigi.htm (262 words)

	Jason Stewart -- Rigid Body Dynamics
		The focus is on implementing a "complete" rigid body dynamics simulator that accounts for angular momentum effects and uses a more accurate collision response than that used for Programming Assignment 2.
		An impulse is applied to one ball and its interaction with the remaining balls in the scene is simulated using rigid body dynamics.
		The current code now simulates the effects of torque on the rigid bodies, and angular momentum is included in the collision response.
	www.cs.unc.edu /~stewart/comp259/rbody.html (492 words)

	Regulations, Rigid Plastic Packaging Containers
		Rigid plastic packaging containers holding obsolete or unsold products and post-industrial scrap that is commonly disposed, and not commonly reused within an original manufacturing process, shall be considered postconsumer material when used as feedstock for new products.
		For purposes of this section, rigid plastic packaging containers that are "sold or offered for sale" in the state refers to rigid plastic packaging containers that are manufactured on or after January 1, 1995, and subsequently sold or offered for sale in California.
		the rigid plastic packaging container(s) for which the exemption is being claimed, the basis for the exemption, and the name, mailing address, and telephone number of the person to whom the Board shall direct future communication relating to the exemption.
	www.ciwmb.ca.gov /regulations/title14/ch4a3a.htm (5770 words)

	Trinkle's Rigid Body Dynamics
		The field of rigid body dynamic (more generally, multibody dynamics) is all about designing mathematical models and algorithms to predict the motions of bodies and the contact forces, including friction, that arise between them when.
		Roughly speaking, in rigid body dynamics, the w andz vectors represent relative accelerations and contact forces expressed in coordinate frames attached to the contact points (assumed isolated).
		Here are some papers related to rigid body dynamics simulation and design problems: theory, velocity-base time-stepping, theory and examples with torsional friction, the quasistatic problem, the design and manipulation planning with intermittent contacts.
	www.cs.rpi.edu /~trink/rigid_body_dynamics.html (1008 words)

	Chapter 4. Basic Kinematics of Constrained Rigid Bodies
		Two rigid bodies connected by this kind of pair will have two independent translational motions in the plane, and a rotary motion around the axis that is perpendicular to the plane.
		Two rigid bodies constrained by a screw pair a motion which is a composition of a translational motion along the axis and a corresponding rotary motion around the axis.
		Since the distance of each particle of a rigid body from every other point of the rigid body is constant, the vectors locating each point of a rigid body must undergo the same transformation when the rigid body moves and the proper axis, angle, and/or translation is specified to represent its motion.
	www-2.cs.cmu.edu /People/rapidproto/mechanisms/chpt4.html (2380 words)

	Rigid Body Dynamics
		A rigid body is similar to a system of particles in the sense that it is composed of particles.
		The main strategy in analyzing the motion of a rigid body is to split the motion into the linear motion of the CM and the angular motion of the body about its CM.
		The rigid body dynamics will serve as the building blocks for a more complex type of motion later: motion of a system of rigid bodies.
	kwon3d.com /theory/rigid.html (256 words)

	The Rigid Rotating Disk in Relativity
		If thus the concept of a RIGID BODY has no place in relativistic mechanics, it is nevertheless useful and natural to introduce the concept of a RIGID MOTION of a body.
		Or if you prefer, you can say that we have nearly rigid motion when Young's modulus is large enough, and the accelerations are gentle enough, so that infinitesimal pieces of the body are barely deformed, when viewed in the comoving frame of reference.
		The particles in a rotating disk (not assumed rigid) cannot agree on a global notion of simultaneity.
	math.ucr.edu /home/baez/physics/Relativity/SR/rigid_disk.html (1681 words)

	Frigid-Rigid
		Frigid Rigid ice chests are built to withstand years of rugged outdoor exposure.
		Frigid Rigid ice chests are available in 25 sizes, so you're sure to find the right size to meet your needs.
		In Frigid Rigid's "set back" design, however, the hinges are mounted, not on the back of the box, but on the top of the box on a specially designed shelf.
	www.frigidrigid.com /chests/chests.htm (589 words)

	Search Results for rigid - Encyclopædia Britannica
		Spandex is a segmented polyurethane—that is, a fibre composed of alternating rigid and flexible segments...
		In contrast to the reductive process of carving, modeling is essentially a building-up process in which the sculpture grows organically from the inside.
		Rigid, rocky outer layer of the Earth, consisting of the crust and...
	www.britannica.com /search?query=rigid&submit=Find&source=MWTEXT (391 words)

	OPD 113 - Rigid Contact Lenses
		Describe the procedure for measuring the total diameter of a rigid contact lens using a measuring magnifier.
		Describe the procedure for measuring the total diameter of a rigid contact lens using a V-channel gauge.
		Identify the factors which limit the accuracy of instruments to measure the peripheral curve width of rigid contact lenses.
	www.dtae.org /teched/standards/courses/opd113.html (788 words)

	Mark Carlson's Home Page (Under Construction)
		We call our method the rigid fluid method because the simulator treats the rigid objects as if they were made of fluid.
		The rigidity of such an object is maintained by identifying the region of the velocity field that is inside the object and constraining those velocities to be rigid body motion.
		The rigid fluid method is straightforward to implement, incurs very little computational overhead, and can be added as a bridge between current fluid simulators and rigid body solvers.
	www.cc.gatech.edu /~carlson (928 words)

	Rigid Heddle Looms - Kromski Harp, Ashford, Shacht, Beka, Harrisville, Leclerc
		The skills and techniques you learn using a rigid heddle loom are all transferable to other types of looms, including table and floor looms, so start with a rigid heddle loom as a way to learn weaving.
		A 4.5 yard, 6-yard or 9-yard warping board is adequate for a rigid heddle loom and you will be able to use it if and when you decide to purchase a larger loom.
		unique in its design, this is a combination of rigid heddle and tapestry loom but the heddle is fixed and cannot be used as a beater.
	www.woolery.com /Pages/rigidheddle.html (1606 words)

	Rigid Folds
		In fact, it's safer to assume that origami models are not rigid and require a proof when trying to assert that a certain fold is rigid.
		A rigid square twist fold, where we see a certain mountain-valley assignment that allows a square twist to be folded and unfolded rigidly.
		The square twist example is strong edivence of this fold being a valid, rigid fold because we see no gaps between any of the creases as we fold and unfold it.
	merrimack.edu /~thull/rigid/rigid.html (1129 words)

	Rigid Body Simulation with Collisions - Andrew Zaferakis (Site not responding. Last check: 2007-10-29)
		Multiple rigid bodies may be in the simulation at one time, however they will not interact with each other, only with the voronoi sites.
		Another serious problem is if the rigid body penetrates the site too far before a detection, then the calculated rebound may not be strong enough for the rigid body to separate from the voronoi site, causing another collision to be detected and causing the bodies to stick together.
		The trick is that when rigid body 'A' is testing for its collisions with other bodies, it cannot have its voronoi diagram drawn on the scene, otherwise it is always closest to itself.
	www.cs.unc.edu /~andrewz/comp236/project/final.html (3776 words)

	Rigid body Tutorial
		So the forearm mesh for instance should be a child of the upper arm and so on, and try to keep the center of the cubes as close to the center of its relative bone as possible.
		Also position constrain the root of your skeleton to the root of your rigids, else your bones will only rotate, and your overall skeleton will not move in position.
		Once you have done all this, you should be able to hit play, and watch your high res character take on the motion that your rigid body character took on.
	www.lumierestudios.co.uk /tutorials/RigidsTut/RigidsTut.htm (548 words)

	Rigid Body Dynamics
		What are Rigid Body Dynamics - A subset of computer simulation that deals with how to represent and implement the animation or dynamic simulation of a rigid collection of points.
		Simulating the motion of a rigid body is based on simulating the motion of a particle.
		Rigid bodies include rotational information, and information representing the change in orientation over time (delta R(t)).
	www.cs.brown.edu /courses/gs007/lect/sim/rigid/slides.html (1083 words)

	Maya : Dynamics : Rigid Body Simulations
		When creating rigid body objects, it is important to consider the size, mass and various settings.
		Also, remember that passive rigid bodies are not affected by various fields and forces; so they are quite useful for anything that needs to behave like an immovable barrier.
		I can't really tell from this image which rigid bodies are at fault.
	www.digitaltutors.com /digital_tutors/video_details.php?v=101 (317 words)

	RIGID Systems, LLC - A BMC Software Consulting Solution Partner
		Established in 1998, RIGID Systems is a new generation information technology (IT) Service Management solution provider that focuses on value, speed of delivery, and high performance technology solutions.
		RIGID Systems to host a Remedy User Group in Columbia Maryland on July 8th.
		RIGID Systems recently held the Federal Remedy User Group meeting in Arlington, VA. Presentations and supporting documentation is available for download.
	www.rigidsystems.com (356 words)

	MERL – Timewarp Rigid Body Simulation (Site not responding. Last check: 2007-10-29)
		Timewarp Rigid Body Simulation is a paradigm for simulating systems comprising hundreds or thousands of rigid bodies in a physically accurate and efficient manner.
		Timewarp rigid body simulation facilitates modeling systems that are too large for traditional algorithms, such as factory floors or large, interactive virtual environments.
		Background and Objective: Rigid body simulation is difficult because of the discontinuities, such as collisions or contact changes, that affect the otherwise smooth trajectories of state variables.
	www.merl.com /projects/rigidBodySim (386 words)

	Dynamics of Rigid Bodies (Site not responding. Last check: 2007-10-29)
		Kinematics and dynamics of particles and rigid bodies in one, two, and three dimensions.
		Objective 1: To teach students the basic principles underlying the dynamics of rigid bodies in planar and 3D motion (B).
		3.2 Students will be able to evaluate the kinetic energy of rigid bodies as well as the potential energy associated with gravity and spring forces (1,2,3).
	www.me.gatech.edu /me/semester_conversion/ME2202.html (426 words)

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