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Questions related to Zero
I am modelling the swelling of a poro-elastic cube using moisture swelling method in ABAQUS . I am trying to impose zero flux conditions on certain walls of the cube i.e the porous cube can absorb...
18 August 2020 1,099 2 View
I am using an oil diffusion rotary vacuum pump, Duo 3, from Pfeiffer vacuum GmbH. The pump has lowest vacuum rating of 3E-3mbar with out gas ballast mode. The vacuum chamber fitted with an...
17 August 2020 8,857 5 View
I have seen a few articles that show efficiencies greater than 100% for a power harvester using a zero bias diode and sometimes without a voltage multiplier. If the efficiency is Pin/Pout how can...
03 August 2020 8,738 3 View
I calculated the stiffness and piezoelectric tensors for LiNbO3 (R3c) and, instead of obtaining something similar to this reference [https://materialsproject.org/materials/mp-3731/#piezo-props],...
03 August 2020 7,974 2 View
Hello, I am trying to calculate solvation energy of Li+ (and Na+) with ethylene carbonate (# 1 ~ 5). For the reference, I need to get energy of Li+ in vacuum. So, I changed NELECT to "0". After...
30 July 2020 8,745 1 View
Emissions by conventional fuel vehicles is one of major contributor of Climate Change. For reducing road vehicles emissions to zero, A design which is marked as INVENTION by IEEE, SAE & WIPO...
27 July 2020 4,862 14 View
Hello, I have a dataset in which we were measuring vegetation height near some Burrowing Owl burrows. Many of the sites were surrounded by bare ground, so our vegetation heights were zero. This...
27 July 2020 3,991 9 View
I am using a linear Kalman filter for estimating the position using multiple IMUs. My model is adding the accelerometer readings' double integration onto the previous positions. The state vector...
10 July 2020 5,809 2 View
I have constructed a GAM which predicts the probability of presence-absence data as a continuous probability where zero=low probability of species presence and one=high probability of species...
03 July 2020 6,195 2 View
While photodetector simulation in Silvaco, the available photocurrent for materials other than silicon becomes zero. Why is it so? Is there a code problem or any specific parameter has to be...
28 June 2020 8,625 5 View
I have some data of q in different time for pseudo first order model...but I have problem for calculating Ln(qe-qt) in equilibirium time because qe-qt will be zero..what is solution? Also, another...
21 June 2020 403 2 View
As far as I learned from the literature, the non-trivial zeros of the zeta function are symmetric about the critical line Re(s) = 1/2, because xi(s) = xi(1-s). But this equation does not give...
13 June 2020 1,415 4 View
A closed-loop system (with feedback), and "actuator saturation". The poles and zeros of the system change when the system goes into "actuator saturation" behavior? Thanks a lot for your feedback
11 June 2020 7,937 8 View
This discussion has bugged me since my high school when we were taught Ohm's Law is V=IR. I used to think its current flow that causes potential difference across two points in a conducting...
19 May 2020 8,320 3 View
Let's say I am simulating as simple as BFSK, it has two symbols one entirely on the real plane while other on the complex plane for representing let's say zero and one, that is how the...
17 May 2020 4,096 1 View
Dear Researchers, I'm a PhD student and currently working on fine scale habitat use by domestic cats. I got two datasets, the one is "used habitats" and the other one is "available habitats",...
27 April 2020 9,307 1 View
In most electronic structures the fermi level is always shifted to zero , why ?
27 April 2020 288 1 View
I have geographic sampling units with my dependent variable with value 0, one third of the total sample..
25 March 2020 3,262 4 View
What type of PCF is ideal for coherent SC generation for carrier envelope offset measurement of a modelocked laser. As far as I know, for coherent SC generation, PCF should be pumped in normal...
15 March 2020 4,147 3 View
hello im try to add variable in ordinary least square to get r^2 =zero i have 50 observation in every variable
13 March 2020 1,380 8 View
If the demand of a product has a behavior of lumpy or intemitent demand, to calculate the order quantity and the safe stock, it is necessary include the periods of zero demand, to obtain de mean...
10 March 2020 4,244 3 View
For example, sliding mode control of minimum phase systems do not require any kind of pole/zero placement, and can be applied directly. However, when it comes to non-minimum phase systems, there...
07 March 2020 1,628 2 View
I did a two-way mixed ANOVA for my variable and got some significant result. For post hoc tests I am suppose to perform a independent t-test but against zero which I am a little confused about....
06 March 2020 4,742 3 View
Hello everybody I'm studying the effect of transition metals adsorption on the transport properties of borophene nanoribbon. The atoms are positioned at the best point of the nanoribbon in...
03 March 2020 5,161 1 View