How do the singular values of a complex matrix A change under scalar perturbations ?

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What cell line can I used to replace J558-CD40L?

Hi! I am lookingto replace the j558-CD40L cell line we are currently using. We are currently using this cell line with mature DC in vitro in cell culture to determine the level of IL-12 produced...

08 May 2022 1,062 1 View

Have you come across publications on "blood metaphors"?

I am undertaking a new project on "blood metaphors" across languages and cultures. I do have very few references on the topic. I was wondering if members of the RG community can think of or have...

05 October 2021 2,045 6 View

What is the reference potential for 'The low oxidation potential. Besides, can we use standard potential to describe it?

Here, low oxidation potential meant the potential at which my analyte i.e. DA has been oxidized. I need to understand here reference potential meant the potential of our reference electrode...

10 May 2021 4,868 3 View

How do you develop a budget in a nursing research?

Hello, I am developing an online education program teaching about COVID-19. The method of teaching will be that participants will use their own phone where they have to install WhatsApp (free of...

28 September 2020 5,681 4 View

Which operators that are not linear combination of orthogonal projections ?

If B(H) is the algebra of bounded linear operators acting on an infinite dimensional complex Hilbert space, then which elements of B(H) that can't be written as a linear combination of orthogonal...

22 March 2020 9,991 13 View

What are the key points one should focus in choosing/designing photoelectrochemical nanomaterials ?

What are the general key points one should focus in choosing/designing photoelectrochemical nanomaterials? Particularly focusing titania, which one is better (graphene oxide or reduced graphene)...

16 February 2020 615 3 View

Titane dioxide (TiO2) in toothpaste : What is the potential risk of the nanoscale particules?

Ratio of micro/nano particules of TiO2 in toothpaste which could be tolerated

04 February 2020 4,362 4 View

How to model TMD in abaqus ?

I've modeled a multi story frame (MSF) with a TMD subjected to seismic acceleration in ABAQUS and SAP2000 using modal dynamics. The frequency analysis is the same for both programs. However,...

24 May 2019 5,617 3 View

Is there a relationship between the rotational speed and the traverse speed during friction stir welding process?

28 December 2018 5,151 4 View

Why the particle size of a nano ferrite doped with rare earth element is decreased then increased by increasing concetration of rare earth element ?

I replace the iron ion with a rare earth ion of concentration between 0 and 0.2. The particle size decreased till a concentration 0.12 and then increased again for a concentration 0.2. The...

31 August 2018 3,753 4 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

Usage of internal standards in LC-MS/MS analysis?

Have you ever seen a LC-MS/MS method uses both internal standards and external standards (in matrix matching purpose) but the concentrations of internal standards are outside the calibration curve...

05 August 2024 3,084 6 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

Tissue homogenization in mouse with FastPrep-24™ 5G - is the D matrix system useful?

I need to lyse and homogenise mouse tissues. So far I have experimented with liver and lung tissue, using matrix D. The liver was completely lysed with 6 repetitions of the standard program, but...

31 July 2024 9,186 0 View

Is it true that science is leaving the era of mathematics and entering the era of matrix mechanics?

We assume this to be true. Science leaves the era of mathematics and enters the era of matrix mechanics and the turning point is the discovery of numerical statistical theory called Cairo...

31 July 2024 3,900 2 View

Help on understanding the implementation of Mori Tanaka method on MATLAB?

I am new to Micromechanics and having similar problem with understanding the implementation of the formula's. I would appreciate if anyone can guide me on how to go about getting a scalar value...

30 July 2024 969 0 View

How Can I Apply Hashin Damage Properties to Solid Elements in Abaqus Without Using VUMAT?

Sure, here is the translation: I have a 3D orthogonal woven composite structure where warp, weft, and binder yarns are oriented in three directions. After modeling these yarns and the matrix in...

28 July 2024 8,169 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

Can biogeographical regions work as a character in a character matrix for a phylogenetic analysis?

Basically I'm helping with the matrix using a cosmolitan group, could one of the characters used for be biogeographical regions (Neartic, Neotropical, etc)? Most of the data in this matrix refers...

25 July 2024 9,753 2 View