Green Definition and 306 Threads

Hi People, I'm being scheduled to take the Six Sigma Green Belt Certification exam sometime in the summer 2017. They already have the registration deadlines/dates up for 2017 already. It's an Open-book, open-notes, calculator-allowed test according to what I've been reading online. I'm...

I am working at a new plant with a Delta high resistance ground system. I am looking for general grounding guidelines for this system.

Suppose we have a differential equation with initial conditions ##y_{0}=y^{\prime}_{0}=0## and we need to solve it using a Green Function. Then we set up our differential equation with the right side "forcing function" as ##\delta(t^{\prime}-t)## (or with ##t^{\prime}## and ##t## switched I'm a...

New Zealand http://www.wired.com/2016/05/new-zealands-white-island-volcano-rumbles-life-paints-green/ I've not heard of green ash before. Is it mineral or perhaps algae/plant matter? Ruapehu had a brief earthquake swarm last week under the volcano. The crater lake at the volcano’s summit...

I wish to create a state-of-the-art vertical wind tunnel for indoor skydiving. By state-of-the-art I mean using green technology to create the power necessary to push air, and I would like to reclaim as much energy I can from the movement of air, drive shafts, and anything else I have not...

Hello, I'm taking a course in electrostatics and electrodynamics. We learned about finding a potentional using unique Green functions that are dependent of the geometry of the problem. Specificly on a Dirichlet problem we get the solution: Φ(x)=∫ρ(x')G(x,x')d3x' -...

What do you think is the ultimate way to oversee plant nutrient water composition - say you need to check the nutrient levels from a natural water source for all the essentials a handful of times a year? Full profile: N, P, K, Ca, S, Mg, B, Cl, Mn, Fe, Zn, Cu, Mo, Ni. Preferred method would be...

I've always read that the proof of the expanding universe is the red shift in all observable stars/galaxies showing velocity away from Earth observation. I've also read that the Andromeda galaxy is on a collision course with our galaxy. Would'nt that mean the stars in Andromeda would be green...

OK, let me start of with the disclaimer that I'm all for green energy.., and that this is a little bit of a rant from a thorn in my side. So.. with that out of the way, I have to really doubt the validity of a lot of these green energy projects...The one that caught my eye in particular was...

I'm studying dispersion relations applied as alternative method to perturbation theory from Weinberg's book (Vol.1) Let's consider the forward scattering in the lab frame of a massless boson of any spin on an arbitrary target ##\alpha## of mass ##m_\alpha>0## and ##\vec{p}_\alpha = 0##...

Could anyone tell me that what is the name of the unicellular green algae which acts as an indicators of clean water. Actually I am solving a crossword puzzle so I need assist in one question the hint to this specific algae is that it is an 7 letters long word and its second letter is E.

Hello I found a recipe for making a type of waterproof wax using beeswax and paraffin wax, and I plan to coat this type of wax with a piece of wood. Does anyone know with this type of wax, after coating the piece of wood, will the wax still prevent the wood from expanding in water?

I exposed a black bottle cap by two light sources ( LEDs), one source is white and the other one is red as in the picture. I noticed that one penumbra toward the red light source is reddish in color which makes sense because this area is only exposed to the red source. What makes a puzzle is the...

Hey all, I am curious what does it mean when the Red or Green indicator lamp is on. I know generally red means dangerous situation while green means safe zones but what about the running of say machinery? Let me put in 2 scenarios and do share your thoughts with me which colour is for which and...

Homework Statement x(t) = 6cos(t)−cos(6t) y(t) = 6sin(t)−sin(6t) 0 <= t <= 2*pi I need to find the area cm2 with Th Green. I need to find the radius and the center coordinate Homework EquationsThe Attempt at a Solution $ = integral 1/2* ( 2*pi$0 ((x)dy - (y)dx) dt ) 1/2 (2*pi$0...

Hey guys! I'm a ME student starting my 3rd year and I am trying to come up with project ideas for next year. I was wondering if you could help me out. For the moment I was mostly interested in eco friendly/ sustainable projects but I'm not completely up to date on the subject so I'm not sure...

Hi everybody. I have a (1×N) Green function in MATLAB. I want to use the FFt function for Green function to transform the time domain. Does the FFT command work correctly for Green function using: A=fft(Green function, nfft). Here nfft is the number of transformed points. Is it necessary that...

Hi I know little about this but I am wanting to wire up my 1mw green laser to my usb port to use it as a power supply it is 3 volts I'm wondering is there a program you can use to change the 5 volt output to 3 volts or would I need to use a resister in the wiring ?

I have a 1×N Green function in energy domain. I want to use the FFT (fast Fourier transform) for this Green function in MATLAB. But this function is non-periodic. Could you help me about this? How can I change the energy interval to convert Green function as a periodic function?

hi, I just looking for Video on diffraction pattern of Electron, and noticed it produces green color pattern. Earlier in chapter, when cathode ray was discovered, it was mentioned that Green glow was Noticed. What is the reason for this green color?

Hi, I have some thoughts about making a much better pool solar cover. My thoughts are to maximize the temperature increase. I plan to suspend a plastic film 6 inches above the surface of the pool water creating a green house effect. Normally, very small plastic are pockets are embedded in the...

There is a memorable and well-known characterization of naked singularities by John Earman, which is that anything can come out of one, including green slime or your lost socks. As with many aphorisms, the form in which it's usually repeated is not actually the form in which it was first stated...

I am a Canadian citizen planning on obtaining an MS or PhD in Aerospace or Mechanical Engineering. Unfortunately I am locked out of 99.9% jobs in the US due to ITAR issues, except the NASA Postdoctoral Program, which I know 1 person working in right now. Is there any way I can obtain Permanent...

I’ve read that the light we can see coming from the sun originates from the suns photosphere which can be modeled as a black body emitter with a temperature of 5760 K. If I use Wien’s displacement law with this temperature to find out where the peak wavelength is: Peak = (2.8977*10^-3)/5760 =...

Hello, I need to solve the Poisson equation in gravitational case (for galaxy dynamics) with Green's function by applying Fast Fourier Transform. I don't understand the method used for an isolated system from (Hockney & Eastwood 1981); it says : I have 2 questions: * Why we duplicate the...

I took apart my green laser, and found a red laser diode inside! Even stranger, I found a little cylinder that fit over the laser that normally would have thought to be a filter, but when I put it on the red laser, green laser light came out! I was totally stumped as to how this worked, but then...

So folks, there is this "green cat of Bulgaria". I see it on Google images. How does one explain this? Someone dyed the cat? The pictures are fake? It fell into some chemical? The cat is a mutation or an omen? The cyan color is very strange. I don't know about this.

This is really amazing. Apparently a weasel attacked a woodpecker that took off flying and the weasel went for a ride! Who do you think wins in the end?

Hello all, this is my first time posting here so please excuse if this maybe isn't the appropriate thread to post this in but I figured it may be the most relevant. I am working on writing a proposal (small, just 450 words), that aims to address the energy efficiency of a university, ie...

Hello fellows, I am not sure if the answer i got this question is the correct one. Could it not be it? ∫(y+x^2*cosx)dx+(2x-y^2*sin(y))dy within the llimit of the circle x^2+y^2=1

Hello, i don't understand how i integrate the star equation at the figure. Fot example \int d x_1 \int d x_2 \frac{d^2G}{d x_1} = \int d x_1 \frac{d^2G}{d x_1} \int d x_2 but \int d x_2 x_2|^\epsilon_{-\epsilon}=0 ...sure this is a error, but i don't understand how i find the answer...

I am currently working on a prototype for a new product. Whithout exposing the product to much it is simply put a cooling box run by solar panels with a battery backup. Due to the fact that the surface area available for solar panels is limited the cooling module needs to be quite small and...

Hello everyone: This is what I read in a paper, the spontaneous emission rate written by Fermi's Golden Rule is just related to the local transverse electric field. Dose anyone can explain to me what's the meaning of "transverse mode" here? Why the emission is not related to longitudinal...

Hi, In chapter 12 of GSW volume 2, the authors remark, "spinors form a representation of SO(n) that does not arise from a representation of GL(2,R)." What do they mean by this? More generally, since SO(n) is a subgroup of GL(2,R) won't every representation of GL(2,R) be a representation of...

Homework Statement The problem requires to solve the integration to find ## G(t) ## after ##G(\omega)## is found via Fourier transform. We have G(\omega)= \frac{1}{2\pi}\frac{1}{\omega _{0}^2 - \omega ^2} Homework Equations As mentioned previously, the question asks to find ##G(t)## The...

hi, I need some reading materials on green function for SHO. my instructor provided a GF frequency and wanted us to find the deformation of poles , boundary conditions for the function. I need to know which mathematical background should I have to solve this. any useful material suggestion will...

With 6 red, 3 blue and 3 green flower pots, how many color permutations in row of 12 are there ? Its not 12! or n!/(n-r)!

What are the structural differences btwn red, blue, and green xenon lamps. What are the different dopants/gases used in the lamps?

So my options for upper divisions this semester were pretty limited. I'm a physics major and the only upper divisions I've taken are intro thermal physics and math models. So this semester I ended up with electromagnetic theory one and modern physics. The first day of modern physics I was...

what is the green component? what is the name?

today i did a oil change on my outboard engine. i found out the oil is green, its normal? If yes, why the oil will be green color? because i fill the new oil is golden color.

I know that in the vector potential formulation one can use a scalar Green function (to find the said potential and from then on the electric and magnetic fields), and that this works because the components of the potential are in the same direction as those of the source - i.e. a current in the...

I just got back from a trip to Japan and one thing I was super impressed with was that all the plastic bags and bottles were derived from plants and thus would safely breakdown over time. I know California has some tough laws, but what about the rest of the US. Why are we not using plant...

I've been searching for a while, but all I seem to find is information about how it's illegal to sell laser pointers to minors in New York City. That and I find some information on what else is illegal to do with a laser pointer in NYC (pointing at vehicles, officers, etc.). There's a lot of...

Hi, While experimenting with various LED's in LN2, I noticed some strange behaviour from my green LED's. As expected all LED's (except the green one's) emitted light with a shorter wavelenth (for instance, my yellow led turned to red etc). However, my 2 (different manufacturer type LED)...

A jar contains red, blue, orange and green jelly beans. There are 20 of each color. How many jelly beens must be selected to guarantee that at least 3 are the same color? The teacher got 9 as answer, but i do not know how she got this. Anybody would like to help please?

Hello, For generating initial velocities on a N-Body code (modeling galaxy dynamics), I need to solve the Poisson equation with Green's function by applying Fast Fourier Transform. The Fourier analysis being more straightforwardly performed in a periodic system, I use the "zero padding trick"...

What is really "green"? I read many articles but still I do not know what are colours like green: Is it -a subjective quality that is made up in human brain, or -the result of sum of yellow and blue, or -the presence of radiations of two frequencies in the same source, or just -the...

Hi everyone. I have a very quick question. Can someone tell me how to compute the energy dimensions of an n-point Green function. Consider for example a \lambda\phi^4 scalar theory. I know that the dimensions of an n-pt Green function are 4-n (or something like that). How do I prove it? Thanks

Ok, so I have a 405nm laser pointer (bluish purple/uv). Had a few miscellaneous glass objects and was shining it through them when I noted a light green line in the glass that it shone through. One of the objects is a sphere of alexandrite, so I assumed that it was a property of the...