Hi,
I working on code that does image tracking with missing pixels, but I noticed that higher ordered spline interpolation is unstable. Found through trial and error that the best result is degree 3, picture related. I always thought that spline interpolation does not display behaviours shown...
Currently coding a wave separation script for the split hopkinson pressure bar. Is there a place I can get raw data for the split hopkinson pressure bar to test my code?
Acoustic impedance of material is defined by density multiply by the velocity of waves within the base material.
My question is if i have a tubular or hollow part with a base material, does this count as a reduction of density compared to the base material of the tube or hollow part. Would the...
Hey guys,
Desai Yield Surface:
I have a hard time understanding the parameters of the model for soils. If I have three principle stresses, σ1, σ2, σ3. And R is defined as the Tri-axial strength in tension, how would I define R.
Lastly can I just say that
I1 = σ1+σ2+σ3
J2= 1/6 * ((σ1-σ2)2...
Hi,
The Tresca Critrion is given in the form of non continuous equations:
Max(½|σ1-σ2|,½|σ2-σ3|,½|σ3-σ1|) = k
How did they come up with the invarient equation
f(J2,θ) = 2√J2 * sin(θ+⅓π)-2k, θ from (0 to 60)
Are there any other measurable danger other than the following
Short term (short half life)
I -131
Do not react with air
Forms aqueous solution with water
Long term (long half life)
Cs -137
Forms cesium oxide with air, can be carried away by air
Forms aqueous solution with...
let say there is an bundle of fuel with 4 rings. Where ring 1 is center most ring and ring 4 is outer most ring.
1st ring contains: 1 fuel element
2nd ring contains : 6 fuel elements
3rd ring contains: 12 fuel element
4th ring contains : 18 fuel elements
The general distribution of...
The most probable velocity of thermal neutrons can than be approximated by the Boltzmann constant and is given by the following:
v = sqrt (2kT/m)
where
k is the Boltzmann constant
T is the temperature
m is the mass of the neutrons
My question is why is the above equation not the...
I was reading about different flux shapes, and it depicted the the shape of the fission neutron spectrum to be in the shape of y=e^-x*sinh(sqrt(x)), where y is the spectrum and x is the energy in MeV.
note: put that equation into wolfram for easy visualization
Then it depicted the slowing down...
Let say we have NxM pixels and we need to cut it down to 2/3*(NxM)
The correct method to achieve this is to convolute the original image with sinc(k)sinc(l), then used the nearest neighbor technique to on the convoluted image. Where k and l is matched to the frequency content of the lower...