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Topic: Gradient


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In the News (Mon 22 Jul 19)

  
  Gradient Analytics
ABOUT US Gradient Analytics is the country's leading independent equity research firm with expertise in financial analysis, forensic accounting, executive compensation, and executive behavior.
Gradient is not affiliated with any investment bank, underwriter, brokerage or trading firm, or fund.
Gradient Analytics, and our substantial client base, know that better research means better results.
www.gradientanalytics.com   (316 words)

  
 NEWS - Gradient Wings
Neil landed his Gradient SR7 28 at goal near Bicester, 135kms from the Long Mynd.
Gradient is starting production of the Aspen II freestyle.
The Aspen II freestyle is focused on wide range of aerobatic pilots and also for experienced pilots as fun glider.
www.gradient-wings.com   (461 words)

  
  Gradient -- from Wolfram MathWorld
For general curvilinear coordinates, the gradient is given by
Kaplan, W. "The Gradient Field." §3.3 in Advanced Calculus, 4th ed.
Morse, P. and Feshbach, H. "The Gradient." In Methods of Theoretical Physics, Part I. New York: McGraw-Hill, pp.
mathworld.wolfram.com /Gradient.html   (105 words)

  
 Magnetic Resonance TIP - MRI Database : Gradient
The echo is produced by reversing the direction of a magnetic field gradient or by applying balanced pulses of magnetic field gradient before and after a refocusing RF pulse so as to cancel out the position dependent phase shifts that have accumulated due to the gradient.
In the latter case, the gradient echo is generally adjusted to be coincident with the RF spin echo.
Gradient echo does not refocus the effects of main field inhomogeneity and therefore is generally used with a short echo time.
www.mr-tip.com /serv1.php?type=db1&dbs=Gradient   (562 words)

  
 USATODAY.com - Analysts stick to their guns as CEOs file suits   (Site not responding. Last check: 2007-10-26)
Instead, Gradient is the creation of two former tenured college professors, Carr Bettis and Donn Vickrey, who say they have created software that dispassionately sifts through the stock market's white noise to reveal when companies are not as financially healthy as they appear.
Gradient's roots go back to 1992 when Bettis, a Ph.D. in business and a professor at Arizona State University, and Vickrey, a Ph.D. in accounting and a professor at the University of San Diego, were introduced through Vickrey's father, a professor at Arizona State.
In Gradient's early days, customers, as part of the annual subscription fee for access to all reports, could request additional research on a company that was already covered.
www.usatoday.com /money/markets/us/2006-03-27-gradient-scrutiny_x.htm   (1235 words)

  
 PlanetMath: gradient
The gradient is a first-order differential operator that maps scalar functions to vector fields.
The formulae presented in this section are useful in the Euclidean setting as well, for deriving the formulae for the gradient in various curvilinear coordinate systems.
This is version 15 of gradient, born on 2001-11-16, modified 2007-04-12.
planetmath.org /encyclopedia/Gradient.html   (802 words)

  
 Sucrose gradient centrifugation Summary
Density gradient centrifugation is a technique that allows the separation of cells, organelles and macromolecules, depending on their size, shape and density.
When mixtures of cellular extracts are layered on top of a density gradient in a tube and subjected to centrifugation, the various components move through the gradient at different rates that are dependant on their sizes and shapes.
For example, a sucrose gradient may consist of layers extending from 70% sucrose to 20% sucrose in 10% increments (though this is highly variable depending on sample to be purified).
www.bookrags.com /Sucrose_gradient_centrifugation   (839 words)

  
 Gradient - Products   (Site not responding. Last check: 2007-10-26)
Gradient Revolution is now also available as a semiactive version equipped with an active crossover unit allowing the customer wide range of bass tuning possibilities.
Gradient SW-S/D is based on the same dipole technique as the original SW-63 which physically fits only the ESL 63 serving at the same time as a stand.
Gradient SW-S is based on the same dipole technique as the previous model SW-57 which physically also served as a stand.
www.gradient.fi /products   (391 words)

  
 Gradient Descent
Gradient descent is a function optimization method which uses the derivative of the function and the idea of steepest descent.
Gradient descent is an attractive optimization method in that it is conceptually straightforward and often converges quickly.
The Gradient PLL was trained for a carrier-to-noise ratio (CNR) of 18 db-Hz, but the performance of the filters is shown in the table for higher CNRs also.
www.innovatia.com /software/papers/gradient.htm   (1457 words)

  
 Gradient: Kalid's Page
The gradient (often abbreviated to grad) is simply a fancy word for derivative (which is a fancy enough word already).
The word gradient is also used to indicate a gradual change (you've probably seen it in Photoshop or the like) but here we are sticking to the math definition.
You must find where the gradient is zero, and test those points to see which one is the absolute max (both will be local maximums).
www.cs.princeton.edu /~kazad/resources/math/Gradient/Gradient.htm   (780 words)

  
 Gradient
A gradient may be drawn in four different directions - either horizontally, vertically, from the top left to the bottom right corner, or the bottom left to the top right corner.
However in some cases it may be necessary to initialise a gradient to a non-graphical container, in which case the Drawable field must be manually set to a valid Render object reference.
This means that the height of the gradient is dynamically calculated in relation to the height of the container.
www.rocklyte.com /pandora/manual/classes/gradient.html   (1332 words)

  
 Gradient Wind: non-geostrophic winds which blow parallel to isobars
The pressure gradient and Coriolis forces are present, but when the isobars are curved, there is a third force -- the centrifugal force.
This is where the gradient wind differs from the geostrophic winds.
This means that in a high pressure system or ridge, the gradient wind blows parallel to the isobars faster than geostrophic (supergeostrophic) speed.
ww2010.atmos.uiuc.edu /(Gh)/guides/mtr/fw/grad.rxml   (348 words)

  
 Gradient flow
The gradient wind equation is a representation of the entire n equation of motion.
The gradient wind is very much like the geostrophic wind, in that it is a frictionless wind which allows for flow that is parallel to the height contours.
The one difference between the geostrophic wind and the gradient wind is that the gradient wind includes the centrifugal force, thereby allowing curvature in the flow field.
vortex.plymouth.edu /winds/webpage/gradient.html   (495 words)

  
 Gradient
The gradient is a vector operation which operates on a scalar function to produce a vector whose magnitude is the maximum rate of change of the function at the point of the gradient and which is pointed in the direction of that maximum rate of change.
If S is a surface of constant value for the function f(x,y,z) then the gradient on the surface defines a vector which is normal to the surface.
The divergence of the gradient is called the LaPlacian.
hyperphysics.phy-astr.gsu.edu /hbase/gradi.html   (91 words)

  
 Gradients and Patterns - SVG 1.1 - 20030114
Gradients consist of continuously smooth color transitions along a vector from one color to another, possibly followed by additional transitions along the same vector to other colors.
gradientTransform is the identity matrix, the stripes of the linear gradient are perpendicular to the gradient vector in object bounding box space (i.e., the abstract coordinate system where (0,0) is at the top/left of the object bounding box and (1,1) is at the bottom/right of the object bounding box).
If a given gradient stop's offset value is not equal to or greater than all previous offset values, then the offset value is adjusted to be equal to the largest of all previous offset values.
www.w3.org /TR/SVG11/pservers.html   (3628 words)

  
  Reference.com/Encyclopedia/Electrochemical gradient
Electrochemical gradients are analogous to hydroelectric dams and equivalent to the water pressure across the dam.
Membrane transport proteins such as the sodium-potassium pump within the membrane are equivalent to turbines that convert the waters potential energy to other forms of physical or chemical energy, and the ions that pass through the membrane are equivalent to water that is now found at the bottom of the dam.
Some archaea, most notably halobacteria, make proton gradients by pumping in protons from the environment with the help of the solar driven enzyme bacteriorhodopsin, here it is used for driving the molecular motor enzyme ATP synthase to make the necessary conformational changes required to synthesize ATP.
www.reference.com /browse/wiki/Proton_motive_force   (1062 words)

  
 Gradient Fields
The coil used to measure planar magnetization integrates the contribution to the magnetization of all the nuclei in the neighborhood of the coil.
The loss of memory of the phase change from a gradient pulse can be fine-tuned by variations in the delay between the two pulses in a gradient echo sequence.
If the gradient pulse is not reversed and the memory of the phase changes is lost, then the pulse's effect can be described as an irreversible operation on the state of the nuclear spin.
www.eskimo.com /~knill/qip/nmrprhtml/node11.html   (616 words)

  
 Tutorial - How to Design a Gradient Background in Photoshop
A gradient background has to be provided in an image format and the color on one end of the image is darker than on the other end which means you cannot allow the image to repeat to the right or the page will repeat the dark edge on the right side.
So, in order to use a gradient background you have to design your page to be used at only one resolution and you may want to state this on the web page.
Make sure your "gradient tool options" box is open and,if not, select "window/show options" or double click on the gradient tool (this may be slightly different on your version of Photoshop but there should be a box with graduated colors in it now.
www.loriswebs.com /tutorials/gradientbackground.html   (963 words)

  
 Gradient Design Automation
Gradient’s products are designed to help users accurately identify possible thermal violations and to more accurately determine the thermal effects on critical aspects such as timing, leakage and electro-migration -- thermal impacts that can be missed with today’s uniform die-temperature methodology.
Gradient is focused on providing mutual customers with access to design kits and flows for various process nodes, including UMC’s proven 65nm process.
Gradient Design Automation provides thermal analysis solutions for the power-intensive and temperature-sensitive integrated circuits (ICs) that are used in the automotive, computer, hand-held, and networking application segments.
www.gradient-da.com /news/news02_pr010.htm   (503 words)

  
 Gradient Analytics
ABOUT US Gradient Analytics, Inc. (Gradient) is an independent research firm providing both analyst-written research work (Earnings Quality Analytics and Equity Incentive Analytics) and quantitative stock ratings for institutional clients (Gradient Factor Suite).
Gradient Analytics was founded on October 1, 1996, by Dr. Carr Bettis, Dr. Donn Vickrey and Stephanie Bettis.
Their academic work provides the foundation for Gradient's company-specific research work delivered by industry leading analysts; the starting point for many of Gradient's alpha-generating quantitative factors.
www.gradientanalytics.com /aboutus.html   (172 words)

  
 create your own gradient
a gradient for a kitchen backsplash, an exterior building wall, interior restaurant wall, a shower or tub surround.
Experiment with the gradient height, the tile color order and how the various grout colors affect the look of the design.
Each sheet is clear film-face mounted and labeled in the upper left hand corner for easy installation and an installation guideline is included.
www.hakatai.com /XQ/ASP/1.mosaic_blends/QX/CustomGradients.asp   (187 words)

  
 PSP Art Resources PSP 8 Edit a Gradient
The "Gradient" portion of the Gradient Editor is where the colors of the gradient are determined.
This is the outcome of the changes made to the gradient on the same vector circle shown above.
I have left a stroke on the circle to illustrate the actual size of the circle compared to the color of the gradient applied.
www.digitalartresources.com /PSP/ArtResources/Tutorials/PSP8/Gradient/editgradient.htm   (970 words)

  
 Gradients and Fields.
Gradient is the generalization of the slope to three dimensions.
The gradient represents the change in a quatity divided by the distance overwhich that change occurs; hence, it is the vector slope.
The electric field is in the opposite direction to the gradient.
maxwell.ucdavis.edu /~electro/potential/gradient.html   (296 words)

  
 MRI 3 Axis Gradient Coils
eddies are induced in the magnet radiation shields primarily from minute variations in coil diameters along the axis or from axial registration errors between the gradient and shield coils.
Our use of alumina ceramic for both the gradient and shield formers allows higher precision to be maintained, and low-amplitude eddy current to be minimal.
There is a strong benefit from gradient coil construction with an alumina ceramic coilform and multilayer windings.
www.dotynmr.com /mri/mri_fcgcpg.htm   (316 words)

  
 Active Contours, Deformable Models, and Gradient Vector Flow   (Site not responding. Last check: 2007-10-26)
This field is computed as a spatial diffusion of the gradient of an edge map derived from the image.
The GVF forces are used to drive the snake, modeled as a physical object having a resistance to both stretching and bending, towards the boundaries of the object.
The GVF forces are calculated by applying generalized diffusion equations to both components of the gradient of an image edge map.
iacl.ece.jhu.edu /projects/gvf   (1883 words)

  
 Vector Gradient Fills pg 2: Production Graphics with Wendy Peck at webreference.com
There is no restriction on the complexity of the object you can fill with a gradient, but it is usually easier to understand how the color is working when you are working with a simple shape.
The gradient preview is rough sample of the color distribution, but gradients are not easy to predict, especially when you are filling irregular objects.
With the Gradient tool, you can specify which area of the object will be filled with the gradient, and can also start the gradient from outside the object, and can set the angle by eye, which is usually more efficient.
www.webreference.com /graphics/column28/2.html   (1205 words)

  
 GRADIENT
Gradient has defined itself as National Distribution Chain.
This means affiliates in 14 major regions across the country with the full infrastructure needed to put the product from manufacturer’s warehouse to the shelf in retail account.
We are happy to invite you and your families to our 10th annual mini-football tournament "Gradient Cup-2006".
www.gradient.ru /eng   (259 words)

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