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I have simulated a DC-DC converter with a switching frequency of 10 kHz. I need to obtain the averaged values of the measured signals like capacitor voltage and inductor current by filtering the...
09 December 2022 7,989 6 View
Hello everyone. Can anyone tell me if it is possible to build a lock-in amplifier by recording all the signal and reference in FPGA and then doing integral over the recorded data? All the process...
07 December 2022 6,363 1 View
I would like to ask about the stability of the Newmark-Beta method used for the forced vibration analysis of laminated plate. In many books, stated that if the coefficients, alfa and beta are...
06 December 2022 3,882 4 View
In the paper "Predicting thermally induced edge-crack initiation using finite fracture mechanics" by S. Dölling, et al. in Eng.Frac.Mech. 252 (2021) 107808, which is discussed on the iMechanica...
05 December 2022 3,445 1 View
So I've got a text file. In it a have a lot of nodal values S11, S22,S33.... . I am not sure how to get a single value (for each S11, S22, S33.... )of normal and shear stresses to be able to get...
05 December 2022 2,011 3 View
Dear Researchers, As we know, the tangent modulus is the slope of the stress-strain curve after the yield point. Now my question is, Is the tangent modulus for a material always fixed as the...
05 December 2022 8,664 4 View
I want to structure the second-order dynamical systems in the form of first-order representation. There are several first-order representations that exist, which is the most appropriate one?
02 December 2022 3,102 3 View
I am in need of making a composite film of P(VDF-TrFE) 75/25 and ZnO nanoparticles ~50nm in diameter. It seems that P(VDF-TrFE) is soluble in many solvents like DMF and NMP, but it is hard for ZnO...
30 November 2022 5,287 1 View
For large-scale matrix Aand vector v, I want to to compute R^{-1]v, where A=QR is the QR factorization of A. The explicit computation of QR and R^{-1} is unaffordable. Is there any iterative...
26 November 2022 1,705 3 View
what properties will get enhanced if we add sic and what properties will we get after adding alumina
24 November 2022 7,958 7 View
The Laplace PDE is defined dU/dt)partial=Nabla^2 U solution has two main approaches, i- FDM approach which transforms the Nabla^2 PDE U=b into a set of n linear algebraic equations Au=u to be...
24 November 2022 8,148 4 View
Hello everyone, I have a normally distributed data. Before conducting CFA, is it necessary to remove outliers? First, I removed two of the outliers and conducted CFA, my CMIN/df value was...
23 November 2022 6,086 7 View
I have missing data in my dataset. I am plotting a graph for global solar radiation received in a day . I expect a bell shaped curve but data cannot give it to me since it is not complete. What...
23 November 2022 8,192 2 View
Hello, I am using the MIXED command in SPSS for an analysis of EEG ERP data. The analysis is complete, and I have the results, except that for the post-hoc pairwise comparisons, I would like to...
22 November 2022 1,864 3 View
The file is downloaded from worldclom2.1 containing the tagged data about temperature, elevation and precipitation, wind and water vapor with resolution of 30s
21 November 2022 6,065 6 View
What are the different ways to get user embeddings apart from matrix factorization of user-item matrix ?
21 November 2022 9,317 2 View
I have got weekly auction data of 91-day t bill along with date of issue and cut-off implicit yield. I have read one paper they converted this data into daily by dividing the yield by number of...
20 November 2022 4,675 4 View
We are analysing the geometric morphometrics of different populations of an orchid, including populations distributed along its geographic range. We aim to test the central-periphery hypothesis,...
17 November 2022 3,846 2 View
I am looking for non-renewable energy alternatives for renewable energy indexes, namely ECO, ERIX, SPG, and SUN.Any suggestions are highly appreciated.
15 November 2022 9,421 0 View
I'm planning to build a model of a hybrid reverse osmosis and deionisation , for my research probably using wav. I don't have a lot of experience with modelling software and I am wondering does...
15 November 2022 4,480 0 View
Hi Experts, I am currently working on a SEM Model of a research paper in which the GFI and AGFI doesn't meet the threshold level. GFI 0.79 AGFI 0.739 What should I do?? any specific reason to...
14 November 2022 1,839 3 View
I am working on predicting some parameters in soil using visible-near infrared reflectance data. My question is 'What is the minimum number of soil samples and their corresponding reflectance data...
14 November 2022 4,689 3 View
Hi, Iam novice to EEG research. My research obtains EEG data, which consists of 80 trials. I am epoching (ERP) 80 trials and grouping 10 trials over time (for example, initial 1-10 trials as...
11 November 2022 143 1 View
For a diagonal matrix, all entries are equal to zero on condition that rows are not equal to columns. But diagonal entries are non zero entries. How can this be proved?
10 November 2022 9,786 3 View