Is there an analytical solution to this kind of second order differential equation?

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In which case does the transformation matrices T1, T2 always exist?

Suppose each element of matrix A is the linear presentation of n independent variables. And matrix B is the formed by such n variables. The question is, does there always exist T1,T2 that enable...

08 September 2019 376 7 View

Is there an internal connection between linear systems and decentralized systems?

Generally speaking, a linear system is solvable and a decentralized system can be solved more efficiently.

04 May 2019 5,660 6 View

How to obtain all the possible T of the folowing matrix equation via matlab?

Equation: [a b 0;0 0 c]*T=[a b 0;0 c c]. Suppose a b c are known varibles. T is a matrix. When I use matlab to solve this equation, there comes a warning "The system is rank-deficient. Solution...

03 April 2019 2,905 11 View

Under what condition will square matrixs follow the commutative Law of multiplication?

To make two square matrixs A and B satisfy the commutative law of multiplication, say, AB=BA, at least one of the following conditions is required: Condition 1: A=B. Condition 2: A=kI or B=kI....

02 March 2019 7,507 31 View

Is it practical to apply learning algorithm to real time control systems?

Learning algorithms can enhance the adaptive ability of the control system, but they tend to require iterative calculation, which may influence the real time performance .

10 November 2018 7,201 3 View

Is there an artificial intelligent technology using no machine learning algorithms?

As the title suggests.

09 October 2018 3,444 0 View

What is the right way to learn modern control theory?

The complicated mathematical formulas and theories is too abstract and tedious for me. How to develop the interest in modern control theories?

08 September 2018 8,702 4 View

Why all the matrices have to be rectangular?

Why not arrange the matrix elements in triangular lattice, or other other topologies?

08 September 2018 4,061 6 View

What's the relationship between machine learning, statistics and optimization?

It will be great if there is an example to show the differences of the three fields.

08 September 2018 6,288 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Request a single Lecture notes for math as detailed as this that I can find in one place?

- The Existence/Uniqueness of Solutions to Higher Order Linear Differential Equations - Higher Order Homogenous Differential Equations - Wronskian Determinants of $n$ Functions - Wronskian...

03 August 2024 2,366 0 View

What is the acceptable p-value cutoff for GO enrichment analysis ?

I have an RNA-seq data that I have analysed using Limma-voom and have extracted the gene IDs, log2FC and the p-values. At p value < 0.05, I have over 10,000 DEGs, however, when I run the GO...

31 July 2024 225 2 View

Can the limit of quantification (LOQ) of an analytical method fall outside its linear dynamic range, or must it always be within it?

Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...

29 July 2024 7,198 9 View

Where to start the Analytical model for Dry sliding wear of metal surface ?

I am doing research on wear mechanism of the additive manufactured metal parts under dry condition. Please share the reference to start the analytical modelling of the wear prediction.

29 July 2024 6,115 0 View

Can we find a statistical matrix mechanics equivalent to the Schrödinger equation?

We assume that we can find a statistical matrix mechanics equivalent to Schrödinger's PDE in two consecutive steps: i-Transform the Schrödinger PDE describing the wave function Ψ into its square...

27 July 2024 3,959 4 View

Seeking MATLAB Code for Differential Evolution in Multilevel Thresholding Image Segmentation ?

Hello, I am a research scholar currently working on a project involving image segmentation, and I am interested in using differential evolution for this purpose . I would greatly appreciate it if...

25 July 2024 9,926 1 View

Can any one let me know the PDE value for Tert-Butylamine in order to control in the API?

PDE value for Tert-Butylamine

24 July 2024 1,166 0 View

How to determine method detection limit in an analytical method?

I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...

24 July 2024 6,592 5 View