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Topic: Length scale

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	Turbulence length scale -- CFD-Wiki, the free CFD reference
		The turbulent length scale is often used to estimate the turbulent properties on the inlets of a CFD simulation.
		Since the turbulent length scale is a quantity which is intuitively easy to relate to the physical size of the problem it is easy to guess a reasonable value of the turbulent length scale.
		In fully developed pipe flow the turbulent length scale is 7% of the hydraulic diameter (in the case of a circular pipe the hydraulic diameter is the same as the diameter of the pipe).
	www.cfd-online.com /Wiki/Turbulent_length_scale (267 words)

	Length scale - Wikipedia, the free encyclopedia
		In physics, length scale is a particular length or distance determined with the precision of one order (or a few orders) of magnitude.
		The observation that different phenomena should be organized according to the length scale (or, equivalently, the energy scale) is one of the basic ideas of the renormalization group.
		The electroweak length scale is shorter, roughly 10
	en.wikipedia.org /wiki/Length_scale (136 words)

	CORMIX Mixing Zone Model: Length Scales and Mixing Processes (Site not responding. Last check: 2007-11-04)
		Length scales are also used in control volume techniques to simulate complex flows where more detailed methods are not available.
		Length scales are not meant to be precise measurements of flow distances, only scale estimates.
		Length scales describe the relative importance of discharge volume flux, momentum flux, buoyancy flux, ambient crossflow, and density stratification in controlling flow behavior.
	www.cormix.info /lengthscale.php (295 words)

	Cardinal Scale - How to Buy a Truck Scale
		Generally, there are two basic types of scales used to weigh trucks; axle load scales which are used to weigh one or two axles at a time and full-length truck scales which weigh the entire truck at one time.
		Scales that are permanently mounted may be mounted either in a pit (like the basement of a home) or of an above-ground low profile design where the scale is mounted on a concrete slab with ramps at either end.
		The ratio between the length of the rod and its diameter is quite large allowing the rod to flex without affecting the accuracy of the scale.
	www.cardinalscale.com /howtobuytruckscale.htm (1161 words)

	Overturning length scale in stratified flows
		This length scale is derived by reordering the potential density profile into a stable monotonic profile.
		Thus it is a measure of the overturning scale.
		This scale is obviously a measure of the available potential energy or stirring and is affected by both overturning and density fluctuation.
	www-fpc.stanford.edu /research/apephf/node9.html (602 words)

	TRUCK SCALES How to buy a Truck Scale
		The second capacity associated with truck scales is concentrated load capacity and is used as a measure of the ability of the scale to measure a load concentrated in a relatively small area.
		Scales and scale components are formally evaluated in one of several metrology laboratories under the NTEP program to ensure that the device performs within published tolerances and over the range of environmental characteristics (temperature, voltage, etc.) which have an influence over the measurement process.
		With pit scales this usually means installation of a sump pump with an adequate drain while low profile scales will require a gravity drain and proper ground slope to move the water away from the scale.
	centralcarolinascale.tripod.com /truck.htm (3074 words)

	Precision, Scale, and Length (T-SQL) (Site not responding. Last check: 2007-11-04)
		Scale is the number of digits to the right of the decimal point in a number.
		Length for a numeric data type is the number of bytes used to store the number.
		Length for a character string or Unicode data type is the number of characters.
	doc.ddart.net /mssql/sql70/da-db_3.htm (400 words)

	Multi-scale MEMS Simulation Grand Challenge
		As the length scale increases only a decreasing fraction of the information contained in the motion of each atom is relevant to many phenomena, e.g.
		Tight-binding Hamiltonians are used where the smallest length scales are relevant and a quantum mechanical description of the forces on atoms is required, e.g.
		This demonstrates the continuity of the stress field in the bulk and absence of reflections of stress waves in passing from the region described by MD to the region described by FE, and thus, the seamless coupling of length scales.
	www-phys.llnl.gov /Research/Metals_Alloys/People/Rudd/GrandChallenge (721 words)

	Lengths
		Angstroms are the length scale of atomic physics.
		The Compton wavelength of the electron is the characteristic length scale of QED (quantum electrodynamics).
		Note that in all the previous three examples a length scale was proportional on the inverse of a mass - in particular, the electron mass.
	math.ucr.edu /home/baez/lengths.html (2897 words)

	Guitar Scale Lengths
		A guitar's scale length is the distance between the bone nut or zero fret and the bridge's saddle.
		Scale length also has sonic implications connected with acoustic instruments.
		A shorter scale acoustic guitar often produces a "woody" tone with an overall warm timbre, while a longer scale is perceived as having more power overall, with increased clarity and distinction in the bass registers.
	www.12fret.com /fret/fv4n7.htm (440 words)

	Novax Guitars : Technical Information
		Scale lengths do have distinct harmonic voices, and this aspect of scale length should be of utmost importance to us as builders.
		Scale length comes first because the harmonic content of the final tone produced by the instrument begins with the string.
		My multiple-scale length guitars (Fanned-Fret®) have a different clang tone for each string, possibly smoothing out the harmonic "holes" or changing the phase relationships between the actual tuning frequency and the clang frequency, similar to the way piano tone is improved by manipulating clang tones.
	www.novaxguitars.com /Pages/Techarticle_frame.html (4316 words)

	The Long and Short of It - Scale Length Explained - Guitar Noise
		Scale length has nothing to do with playing scales and everything to do with the length of the strings from the nut (that white thing the strings go over, up there by the headstock) to the bridge.
		The scale (length) of the neck (and, ultimately, the strings) determines two major aspects of a guitar's personality: the distance between the frets, and the tension (or tightness) of the strings.
		In a nutshell, the shorter the scale length, the closer the frets are together.
	www.guitarnoise.com /article.php?id=297 (652 words)

	Size and Scale
		Scales can range from smaller than an atom to larger than the universe and hence, a linear scale is not a convenient representation.
		A logarithmic scale, however, uses the Power of 10 to represent and compare the relative size or distances of objects with actual lengths that are so drastically different that it would be difficult to represent them on a linear scale.
		Similarly, the length represented between 2 and 3 is 10 times longer than the length represented between 1 and 2 and 100 times longerthan the length represented between between 0 and 1.
	invsee.asu.edu /nmodules/sizescalemod/unit1.htm (1478 words)

	Silk Road Designs Armoury (Site not responding. Last check: 2007-11-04)
		As a general term, "Armours of Scales" refers to armours constructed of a number of identical small plates (the largest I know of being approximately three by four inches, or seven by nine and a half centimeters) which are visible when the armour is worn (as distinguished from Brigandine, discussed at another page).
		European scale was generally a waist or hip length cuirass which seems to have been of poncho design, fastened at the sides, though there is some indication that longer ones were used, some with front opening.
		The horizontal rows are then laced together, overlapping upwards (in contrast to scale, here the lower row overlaps the one above it), by passing a thong through the single hole at the bottom of each plate in the upper row and the one or two holes at the top of each plate in the lower.
	www.geocities.com /Athens/Olympus/3505/page6.html (2808 words)

	Length scale -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-04)
		In (The science of matter and energy and their interactions) physics, length scale is a particular value of length or distance determined with the precision of one order (or a few orders) of magnitude.
		The observation that different phenomena should be organized according to the length scale (or, equivalently, the (Click link for more info and facts about energy scale) energy scale) is one of the basic ideas of the (Click link for more info and facts about renormalization group) renormalization group.
		The (Click link for more info and facts about electroweak) electroweak length scale is shorter, roughly meters.
	www.absoluteastronomy.com /encyclopedia/l/le/length_scale.htm (144 words)

	Scale and Area Measurement (Volume 1, Module 4) (Site not responding. Last check: 2007-11-04)
		Scale is the ratio of a distance on an aerial photograph to that same distance on the ground in the real world.
		The scale ratio is always written as one unit on the photo or map to the corresponding number of units on the ground.
		Each dot or grid cell is proportional to an area according to the scale of the source image, summing the number of dots or grid cells and multiplying by the scale conversion allows you to estimate areas quickly.
	www.r-s-c-c.org /rscc/v1m4.html (2456 words)

	The NIST Length Scale Interferometer
		Scale graduations are of two types as seen by the microscope: bright (reflective) lines against a dark background, or dark lines against a bright background.Graduation images are produced with the aid of a microscope illuminator which projects a uniformly lit beam of light through the objective lens and normal to the scale surface.
		Data from the measuring system is converted into scale interval lengths at 20 ° C by the computer program.The count recorded at the zero graduation is subtracted from each succeeding recorded count in the pass to give the interval lengths in quarter wavelength units.
		During the time common to both scales, the length of the former appears to be increasing and the latter appears to be decreasing.
	nvl.nist.gov /pub/nistpubs/jres/104/3/html/j43bee.htm (11383 words)

	scale4
		Its goal is to reinforce the idea that area is affected by multiplying by the square of the length scale factor, which is the same as multiplying by the length scale factor twice.
		Scale in the horizontal and then the vertical direction (or vice versa), and note the effect on the area.
		To reset the applet, reload the page, or set the scale factor to 1 and scale in both directions until the yellow and blue quadrilaterals are identical.
	www.uwrf.edu /~W1083037/sketch/scale4a.html (184 words)

	Length Scales
		It is assumed that any length scale derived in this paper (there are three) depends only on the dynamical conditions of the fluid and not on a constitutive property of the fluid (such as thermodynamic conductivity).
		This length scale is also commonly referred to as the integral length scale of the flow.
		For a particular point in the flow, the magnitude of the integral length scale is a function of the not just the quantity correlated but on the direction of separation as well depending on which directional correlation is used.
	www.deas.harvard.edu /brenner/taylor/handouts/taylor_stats/node2.html (556 words)

	Stony Brook AMS Preprints, 1992
		In this paper we are concerned with multiple length scale, not necessarily self similar, random fields in the context of linear transport equations.
		Infrared (long length scale) divergences in the terms of a perturbation expansion for this theory correspond to anomalous diffusion in the ensemble averaged equations.
		Let b be the asymptotic scaling exponent of the mixing layer, and r be the asymptotic scaling exponent of the correlation function of the velocity (or permeability) field.
	www.ams.sunysb.edu /papers/old/tmp/papers92.html (3125 words)

	From what I understand, Planck time is the amount of time it takes a photon to move Planck length, but what is Planck ...
		The significance of this mass is that it is the energy scale at which the quantum properties of the object (remember, this is a point particle!) are as important as the general relativity properties of the object.
		Thus, the Planck length is the typical quantum size of a particle with a mass equal to the Planck mass.
		Since the Planck length has this special property of being the length scale where we can't ignore quantum gravity effects, it is typically taken to be the size of a fundamental string, in string theory.
	www.physlink.com /Education/AskExperts/ae635.cfm (638 words)

	Table-Top Olympic Auto-Length Scale (Site not responding. Last check: 2007-11-04)
		The accurate measurement of infant length for the early detection of abnormal growth is a valuable diagnostic tool.
		Length is measured to an accuracy of two millimeters.
		After measuring the baby you can chart the length while the baby remains safely in the tray, or you can return the baby to their bed and then chart length.
	www.quickmedical.com /olympicmedical/scales/autolength.html (534 words)

	Scale Length: A Primer » Electric Guitar Review
		To be precise, the scale length of a guitar is the vibrating length of its strings, ie, the distance from the center of the saddle to the nut.
		The scale length dictates the placement of frets on a guitar’s fingerboard, with the 12th fret falling at the exact middle of the scale.
		Perhaps the two best known scale lengths (the ones often referred to when attempting to describe a guitar’s “feel”) are those of Fender’s Stratocaster – which has a 25 1/2“ scale – and Gibson’s Les Paul – which is officially listed as 24 3/4”, but is said to be closer to 24 5/8“.
	www.electric-guitar-review.com /2006/07/12/your-guitars-scale-length-a-primer (745 words)

	Russian Boxes
		The scale factor connecting the object with it’s image is usually denoted by the letter k and calculated by comparing features of the object and image.
		Calculate the scale factor that is used to calculate the sizes of the planets based on your choice of model size for the sun.
		Different centers means the length between the centre and the object is different hence the length to the image is increased when this different amount is multiplied by the relevant scale factor.
	www.nzmaths.co.nz /Geometry/Shape/RussianBoxes.aspx (2907 words)

	p-Adic length scale hypothesis in biosystems
		The p-adic length scale hypothesis is especially interesting due to the appearence of many twin primes in the range of the biologically interesting length scales.
		A more concrete mechanism favouring twin length scales is based on the idea that biosystems perceive typically gradients and hence must be able to form differences of two values of a physical quantity representing some aspect of the external world.
		In the length scale range extending from the atomic length scale to the length scale of cell, there are only two non-twin primes!: k=157 and k=163 and it is interesting to try to find a possible identification for these length scales.
	www.helsinki.fi /~matpitka/nanob.html (1297 words)

	Self-Organized Criticality (Site not responding. Last check: 2007-11-04)
		These relaxation events may lack a typical length scale and their sizes follow a power-law distribution thus the systems have diverging correlation lengths and become scale invariant (critical).
		The levels of details are usually described by the length scales or, inversely, the energy scales, for example, atomic scale, planetary scale, high energy, low energy...
		However, there are better situations that even when the degree of freedoms from all length scale are involved in contributing to the observable phenomena, things could actually look the alike in different length scales.
	ccdw.org /~cjj/sand/soc.html (680 words)

	Mass Transport: Diffusion Length
		In both solutions, the distance x was divided by ("scaled by") a particular combination of the other parameters in the problem: the time t and the diffusivity D. This quantity has the dimensions of length (as it must) and is known as the mass diffusion length.
		Note that the relevant time used to find the diffusion length will often be the residence time of gases in the reactor.
		An important example is the ratio between the system length and the diffusion length, typically calculated with the time set to the residence time (the average time gases are in the reactor).
	www.batnet.com /enigmatics/semiconductor_processing/CVD_Fundamentals/xprt/diffusion_length.html (785 words)

	p-Adic length scale hypothesis in biosystems
		The p-adic length scale hypothesis is especially interesting due to the appearence of many twin primes in the range of the biologically interesting length scales.
		A more concrete mechanism favouring twin length scales is based on the idea that biosystems perceive typically gradients and hence must be able to form differences of two values of a physical quantity representing some aspect of the external world.
		In the length scale range extending from the atomic length scale to the length scale of cell, there are only two non-twin primes!: k=157 and k=163 and it is interesting to try to find a possible identification for these length scales.
	www.physics.helsinki.fi /~matpitka/nanob.html (1297 words)

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