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# Topic: Greens function

 Australian Greens - Wikipedia, the free encyclopedia The precursor to the Tasmanian Greens (the earliest existent member of the federation of parties that is the Australian Greens), the United Tasmania Group, was founded in 1972 to oppose the construction of new dams to flood Lake Pedder. The Greens do not have formal links to environmental organisations commonly labelled by the media as "green groups" such as the Australian Conservation Foundation, The Wilderness Society and Greenpeace, all of whom claim to be non-political. Senators Vallentine, Chamarette and Margetts were all elected as Greens (WA) senators and served their terms before the Greens WA affiliated to the Australian Greens, meaning that they were not considered to be Australian Greens senators at the time. en.wikipedia.org /wiki/Australian_Greens   (2895 words)

 Tutorial for Green's Functions, Materials Reliability Division, N.I.S.T (via CobWeb/3.1 planetlab2.isi.jhu.edu)   (Site not responding. Last check: 2007-10-18) Green's functions play an important role in the solution of linear ordinary and partial differential equations, and are a key component to the development of boundary integral equation methods. In elastostatics, the Green's function represents the displacement in the solid due to the application of a unit force. In heat transfer, the Green's function represents the temperature at the field point due to a unit heat source applied at the source point. www.boulder.nist.gov.cob-web.org:8888 /div853/greenfn/tutorial.html   (1040 words)

 [No title] Greens USA (?) United States Green Party (2001?) 1984 - Committees of Correspondence was founded in 1984 by Charlene Spretnak, David Haenke and others. I don't think presidential politics is where Green energies ought to be focused, but I am certainly glad that SOMEONE might have an opportunity to openly talk about corporate power, and to do that from a "progressive" (a hard term to clearly define...) point of view. The confederal grassroots politics I advocate are happening outside any Green venue (because that's the way the Party has *structured it in California), and I am a part of that "Green Movement," a founder of the GP in Sonoma County, two-term Council member, and still a registered Green. www.greens.org /colorado/dgp/pages/Histories_of_Greens_in_America.txt   (4409 words)

 [No title] Green's function is originated from George Green's famous essay on the application of matematical analysis to the theories of electricity and magnetism in 1828. The Green's function is also going beyond the linear problems, and is crossing different length scales. The Green's function method embraces applied mathematics and engineering, and is essential not only to the advance of across-disciplinary research, but also to the training of next-generation scientists and engineers. icces.org /cgi-bin/ices05/pages/greens   (392 words)

 Many Body 1   (Site not responding. Last check: 2007-10-18) However, up to now, for calculating excited state properties, only Green s function theory methods have proven themselves to be applicable to both small systems, and extended systems such as crystals. Green s function theory takes advantage of the fact that typically in many body problems, most of the quantities one wants to determine can be computed by solving the dynamical equations for a few effective degrees of freedom. One particle Green s function theory describes the dy-namical evolution of an electron added to a system (usually defined as the ground state) at a time t0 or a hole if an electron has been removed and its removal at a time t1. www.tcd.ie /Physics/People/Donal.MacKernan/Many_Body_1.html   (888 words)

 Bodybuilding.com - Greens Food Information and Product Listing! Greens Food FAQ! Because greens food are plant based, greens food help keep the body's sensitive pH balance in an alkaline and healthy state. Greens food products provide a number of benefits that can enhance health, and this is true for every person, regardless of age, sex or activity level. The ingredients in green foods products may be contraindicated with other dietary supplements or over the counter or and prescription medications. www.bodybuilding.com /store/greensfood.html   (439 words)

 Bodybuilding.com - Clayton South - Clayton's Health Facts: Greens Food. "Greens" supplements are plant-based supplements that are made from plant sources like alfalfa, barley, grains, nuts, spirulina, wheat grass, herbs, vegetables, legumes, and seaweed. Greens food supplements are designed to increase your daily intake of vitamins, minerals, and enzymes. Additionally, greens food supplements boost immune system function above and beyond normal levels by supplying herbal ingredients and metabolites that are necessary for super health. www.bodybuilding.com /fun/southfacts_greensfoods.htm   (542 words)

 Behind the "antiwar" stance of the Australian Greens In other words the Greens’ opposition to the war is not derived from an opposition to the violent eruption of US imperialism and the drive by the major powers for a redivision of the Middle East, but on an estimation that it is not in Australia’s national interest. The Greens statement declared: “The Australian Greens condemn the Serbian leadership in Kosovo for its policies and practice of genocide against the majority Kosovar people in Kosovo.” The condemnation was accompanied by the ritual call for a ceasefire and for so-called UN peacekeeping forces to be sent to occupy the region. For their part the Greens, along with every other parliamentary party and the entire coterie of middle class radical organisations, utilised the legitimate public outrage to actively campaign for an Australian-led UN intervention as the only means to end the killings. www.wsws.org /articles/2003/feb2003/gree-f28_prn.shtml   (2492 words)

 IOM Web Site - Instruction The exercise of developing a solution in terms of Green's functions is important to demonstrate that a solution The exact form of the Green's function is known for many sample problems (Bennett (2002) for two examples and Stakgold (1979) for a more thorough treatment). However, it is not important to demonstrate the exact form of the Green's function to demonstrate existence. www.eas.asu.edu /iom/instruction/mod1existence/mod1existence.html   (165 words)

 BIM 2000 Invited Conference Abstracts   (Site not responding. Last check: 2007-10-18) The Greens function adopted in the present formulation already incorporates the properties of the sound-absorbing ground. Evaluation of the Greens function is very expensive and has to be performed at each integration point, together with its first and second derivatives. The second derivatives of the Greens function, required in the hypersingular boundary integral equation, do not demand extra computational effort since their expressions can be represented in terms of the Greens function and its first derivatives, already used in the standard boundary integral equation. www.maths.strath.ac.uk /~aas96109/bim2000/INVwrobel.html   (372 words)

 greens - OneLook Dictionary Search Greens : Hormel Glossary of Kitchen and Food Terms [home, info] Phrases that include greens: collard greens, mustard greens, salad greens, greens function, greens green stuff, more... Words similar to greens: green, leafy vegetable, salad, spinach, more... www.onelook.com /?w=greens   (215 words)

 Climate   (Site not responding. Last check: 2007-10-18) transport in vegetation canopies, the Green's function is a canopy radiative response to a point monodirectional source located outside the canopy. The problem-dependent adjoint formulation of radiative transfer allows us to express a particular canopy radiation efect in terms of the Green's function and, as a consequence, to better adjust the existing models to the solution of a specific radiation problem. Green's function to describe radiation fields due to the interaction between the canopy ground climate.gsfc.nasa.gov /viewPaperAbstract.php?id=362   (262 words)

 Miracle Greens - Nutirent-Rich Super Green Food Drink Mix - Miracle Greens   (Site not responding. Last check: 2007-10-18) Miracle Greens is a superior source of antioxidants, minerals, amino acids, cleansing fiber, and acidophilus cultures. One scoop of Miracle Greens powder mixed into twelve ounces of any non-citrus juice or water provides you with the powerful nutrition of five servings of fruits and vegetables without the calories or carbohydrates. Miracle greens includes blue green algae, a dynamic nutritional food that contains a full spectrum of 12 vitamins, 23 minerals, trace elements, essential amino acids and large amounts of high quality protein. www.immunesupport.com /miracle_greens.htm   (185 words)

 Analytic 3D Greens Function Approach to Scattering and Diffraction from Patterned and/or Imperfect Multilayers The 3D electromagnetic Greens function Gij(x,x) for planar multilayers is constructed from the eigenmodes of Maxwellís equations in the multilayer structure. Once obtained, this Greens function can be used to perform detailed perturbative calculations of the scattering and diffraction from an arbitrary nonplanar multilayer in either of two relevant regimes: imperfect or patterned multilayers. The advantage of using the planar multilayer Greens function follows directly from the fact that it is analytic which provides insight as well as numerical results and the planar eigenmodes can be evaluated rapidly even in 3D so it can be fast. www.nsti.org /procs/MSM99/8/W42.03   (284 words)

 Random walks to Solve Schrodinger's Equation The simulation seeks a ground state wave function, that is a description of the distribution of electric charge in the molecule, which is represented by an ensemble of possible electron positions distributed in the vicinity of the Li and H nuclei. In regions where the initial analytic wave function is poor, the energy deviates from the true energy of the real Li H molecule. The simulation corrects the errors in the approximate analytic wave function, however, the efficiency of the simulation is greatly improved when a highly accurate analytic function is known in advance. dept.kent.edu /projects/ksuviz/leeviz/gfmc/SC97gfmc.html   (616 words)

 The Green's function revisited The test'' function f(x) is required to vanish at infinity. (96) is to use that the function y(x), This shows that the notion of the Green's function is very useful, since it often allows solutions of the second order differential operators occuring in physics to be found in a systematic way. www.nbi.dk /~polesen/borel/node11.html   (132 words)

 [No title]   (Site not responding. Last check: 2007-10-18) Throughout, we let $u(x)$ be a function in $L^2[a,b]$ and define \eq Lu \equiv a_2(x) u''(x) +a_1(x) u'(x) + a_0(x) u(x) \quad, \quad x \in (a,b) \endeq and $B = [b_{ij}] \in \reals^{2\times 4}$.We use the overbar notation $\bar{u}$ to denote \eq \bar{u} = (u(a),u'(a),u(b),u'(b))^T \in \reals^4 \endeq for any function $u(x)$. However, the Greens function $g_0(x,t)$ solving \eq L_0 g_0 = \delta (x-t) \quad, u(0)=u(1)=0 \endeq is easily found as \eq g_0(x,t) = \left\{ \begin{array}{ll} t(x-1) & 1 \ge x > t \ge 0\\ x(t-1) & 1 \ge t > x \ge 0 \end{array} \right. Since the Greens function $g_0(x,t)$ exists, we know that \eq L^*v = g \quad, \quad B^*\bar{v} = 0 \endeq is equivalent to the integral equation \eq v(x)+ \int_a^b a_0(x) g_0(t,x) v(t) dt = G(x) = \int_a^b g(t) g_0(t,x) dt \endeq The result follows for $g=0$. www.math.montana.edu /~pernarow/M560/2000/2ndorderBVP.texOLD   (1251 words)

 Dirichlet problem - Wikipedia, the free encyclopedia In mathematics, a Dirichlet problem is the problem of finding a function which solves a specified partial differential equation (PDE) in the interior of a given region that takes prescribed values on the boundary of the region. Such a Green's function is usually a sum of the free-field Green's function and a harmonic solution to the differential equation. The Dirichlet problem for harmonic functions always has a solution, and that solution is unique, when the boundary is sufficiently smooth and f(s) is continuous. en.wikipedia.org /wiki/Dirichlet_problem   (585 words)

 Boundaries and Field Inhomogeneities   (Site not responding. Last check: 2007-10-18) This operator is localized, and may be idealized as being proportional to a surface delta function. Furthermore, the correction terms to the free space Greens function must be of infinite range. It may be more feasible to consider a leaky barrier, or a field inhomogeneity where presumably this is not a problem, and then to extrapolate the results to an impenetrable barrier. parallel.hpc.unsw.edu.au /rks/docs/thesis/node24.html   (546 words)

 Citebase - Greens Function for Anti de Sitter Gravity   (Site not responding. Last check: 2007-10-18) We solve for the retarded Greens function for linearized gravity in a background with a negative cosmological constant, anti de Sitter space. Therefore the form of the Greens function depends on a choice of boundary condition at spatial infinity. We calculate the Greens function associated with this condition, and show that it reproduces the correct classical solution for a point mass at the origin, the anti de Sitter-Schwarzchild solution. citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:gr-qc/9406005   (165 words)

 The Fountain Of Youth Is Not An Anti Aging Miracle Triple Surge Anti Aging Greens is a complete, nutrient-rich Anti Aging Cocktail that supports health and vitality in many important ways and on many different levels. You don't hear much about lecithin in regards to blood chemistry, brain function and heart health because lecithin is naturally occurring in FOOD and cannot be patented and that means there is no financial incentive for drug companies to make the stuff for therapeutic purposes, so they leave it alone. Anti oxidants help protect your cells from free radical damage and free radical damage is considered by practically all anti aging researchers and experts to really be "Public Enemy #1" as it relates to aging, heart disease and cancer. www.totalhealthdynamics.com /aging/superfood.htm   (2293 words)

 MOM-UTD Hybrid User Reference Manual This manual therefore is very similar to the NEC-2 manual, in fact, certain sections, such as the modelling guide lines and many of the commands, have been copied verbatim from the original NEC-2 manual. The reason for taking the approach of releasing a package that, as far as the user is concerned, is functionally equivalent to NEC-2 is because NEC-2 was judged to be a good platform on which to test and develop new ideas in EM simulation. This package is therefore the baseline code upon which future modifications will be based. www.supernec.com /manuals/snmomurm.htm   (276 words)

 [No title]   (Site not responding. Last check: 2007-10-18) The Green Party of the United States is ready and able to continue the important pro-democracy work that is so critical to our country. Throughout the country, more than 200 elected Greens are implementing policies and legislation that mirror the Green Party principles of peace, justice, ecology and democracy. These elected Greens better reflect the diversity of which America is comprised and share the values that are important to most Americans. web.greens.org /c/cobb/supporters.cgi?function=donate   (316 words)

 Finding Green functions for ODEs. (via CobWeb/3.1 planetlab2.isi.jhu.edu)   (Site not responding. Last check: 2007-10-18) We discuss the construction of the Green function in three cases depending on the nature of the boundary conditions. This is not necessarily true for Green functions constructed by other methods: see for example the construction found by Don Jones while a graduate research assistant at GEORGIA TECH and given in an appendix. (c) By finding the Green function for the problem L(y) = y'', y(0) = y(1), y'(0) = y'(1), re-write this equation as an integral equation such as was studied in the previous chapter. www.mathphysics.com.cob-web.org:8888 /pde/green/g15.html   (3235 words)

 NANOHUB.ORG - The NEGF Approach to Nano-Device Simulation   (Site not responding. Last check: 2007-10-18) Datta, "Nanoscale Device Simulation: The Green's Function Formalism," Superlattices and Microstructures, 28, 253-278 (2000). Datta, "Non-Equilibrium Green's Function (NEGF) Formalism: An elementary Introduction," Proceedings of the International Electron Devices Meeting (IEDM), IEEE Press (2002). Paulsson, "Non Equilibrium Green's Functions for Dummies: Introduction to the One Particle NEGF equations," International J. on Multiscale Computational Engineering, 2, 2002. www.nanohub.org /topics/negf   (862 words)

 [No title] To solve (8.2.5) for general Q0 we introduce the Greens function,  EMBED Equation.3   EMBED Equation.3  (8.2.6 a,b,c) where the right hand side of (8.2.6a) is the dirac delta function centered at z’. These solutions correspond to a delta function in the potential vorticity with amplitude B, each one limited to a layer a z=c where c lies in the range of U here between 0 and 1. The third integral picks up the remainder of the initial condition and is an integral over the continuous spectrum, each component of which is a delta function of potential vorticity being advected by the basic flow, U(z) at the level z. www.whoi.edu /science/PO/dept/scientist/biosketch/Pedlosky_12_824_Ch8.doc   (2728 words)

 Average green's function   (Site not responding. Last check: 2007-10-18) In evaluating the capacity formula we will need the average Greens function, this is not a trivial calculation, the details of which are beyond the scope of this project, hence I shall just present the result: Where 11#11 is the Green's function for the following equation, i.e. The average output signal in the main channel is thus related to the input signal by: www.stanford.edu /~hossein/ee359/node7.html   (95 words)

 Transit Time Distributions   (Site not responding. Last check: 2007-10-18) A mathematical formulation of transit time distributions (TTDs), or in stratospheric terminology "age spectra", was presented by Hall and Plumb (1994), where the TTDs were identified as boundary Greens functions. For small Δ transport is dominated by advection, and the TTD is narrow and peaked near the mean age (Δ = 0 corresponds to no diffusion and a delta function TTD at t=Γ). As Δ is increased (diffusion increased) the TTD broadens, has a peak (modal time") at transit times increasingly shorter than the mean age, and develops an increasingly longer tail" of old fluid. www.jhu.edu /~eps/faculty/waugh/ttd_theory.html   (798 words)

 A Brief Overview of Time Discretized Operators of Type 1 Classification and Consequence Leading to Type 2 and Type 3 ... This can be accomplished both with and without considering the notion of introducing transformation to modal basis (that is introducing modal transformation and requiring an eigenproblem to be associated in the development of the time discretized operators). [20, 21, 22], in which, the Greens' function of the free undamped system is used via a similar formulation. In contrast to the above formulation, the original VIP time integral methodology requires one extra approximation, namely assuming a linear interpolation for the velocity, since the virtual or weighted time field was selected based on an undamped system. www-users.cs.umn.edu /~xiangmin/gino/node5.html   (876 words)

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