What are the differences between PCA and SVD decomposition approaches?

Is there essentially a difference? Which one is optimal or low complexity ? is here a relation with the rank?

08 September 2019 2,151 3 View

What is the simplest way to solution of a single variable nonlinear equation?

what is the simplest way to solution of a single variable nonlinear equation?

04 May 2017 8,238 2 View

Is the Output of correlator always Gaussian?

04 May 2017 9,664 0 View

What is definition of a convex monotonic increasing function?

03 April 2017 258 1 View

Please consider standard hmax model and a cell array as output of the c2 layer. which of them is our feature vector for classification?

11 December 2016 4,956 1 View

Can we measure the effect of noise on a chaotic signal using the lyapunov exponent?

hi dear all.assume that a chaotic signal is received from the two different noisy channels. can we measure the effect of noise on a chaotic signal using the Lyapunov exponent? or you prefer...

07 August 2016 5,354 4 View

Is there any mathematical demonstration for advantage of the chaotic spreading sequence compared with the gold or other spreading sequences?

07 August 2016 327 0 View

What are the today's challenges in chaotic based wireless communications researches ?(chiefly wireless communication)

what is the today's challenge in chaotic based communications ?

31 December 2014 10,027 3 View

Hi dear all; consider 5 complex nonlinear equations with 5 variables. what is the simplest method for solution?

hi dear all; consider 5 complex nonlinear equations with 5 variables. what is the simplest method for solution?

01 January 1970 4,200 6 View

How can we calculate the entropy of chaotic signals in a communication system?

01 January 1970 8,122 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View