Block operator matrices ?

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Could you recommend some articles on Urban Transportation System optimization and Innovation?

13 August 2024 2,595 3 View

Is there any cases algae not using the nutrient from the wastewater and grow normally?

I am working on microalgae cultivation using waste water. The initial concentration of nutrients were less but the microalgae has achieved biomass growth of 2 g/L. The final concentration of...

08 August 2024 4,812 2 View

1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

Articles on" Gender disparities i leatherwork education"?

Articles on" Gender disparities i leatherwork education"

07 August 2024 2,500 0 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

What should I do with parameters that are not relate to my simulation in MyLake model?

I want to Estimate surface heat fluxes using MyLake, but I don't have all the initial values in model parameters section and other sections,is there a way?

04 August 2024 1,537 1 View

Why reactivity isn't increased with more empty spots in valence shell?

If from a geometric perspective the non-halogens, non-noble gases have more empty spots in their valence shell, and the filling/exiting of any of the empty spots in the shell constitutes a...

03 August 2024 4,787 2 View

Why is the molecule's orientation with an electric field affect polarizability?

Why is the molecule's orientation with an electric field affect polarizability? Electrons are diffuse enough to be independent with respect to orientation and effect of electric field on...

03 August 2024 7,843 1 View

Why don't d-orbitals split themselves, why does it take a ligand? why don't protons from ligand repel nucleus split d-orbitals?

why don't d-orbitals split themselves because of themselves without the presence of ligands? Electrons are indistinguishable. Why wouldn't it be more correct that protons from a ligand split the...

03 August 2024 3,589 3 View

Why doesn't chromium 2+ ion use all its d-orbitals to receive lone pairs from six waters in [Cr(H20)6)]3+?

I'm guessing it's because the ligand experiences too much electron repulsion or proton repulsion from the chromium to insert them close to the 3d-orbitals which are close to the metal nucleus. Is...

03 August 2024 1,370 1 View

Why I am getting follwing error when I tried to open .dta file in SPSS25?

>Error # 7202. Command name: GET STATA >Input dictionary read error. >Execution of this command stops. Cross Product Matrices are not supported

19 June 2024 5,423 0 View

Lifestyles and correlations in cultural tourism?

I am looking for resources in the Netherlands regarding cultural tourism. So what cultural activities correlate, and what lifestyles can be distinguished. Any resource is welcome, articles, factor...

27 May 2024 447 2 View

How to characterize the material parameters of pure epoxy matrices in an event of low velocity impact (LVI) simulation in abaqus?

I have two different epoxy matrices, in the events of low velocity impact (LVI) experiments, for a certain impact energy one matrix completely fractured and the other showed no visible damage in...

21 May 2024 5,065 0 View

Box's Test IN TWO WAY REPEATED MEASURE ANOVA?

If the Box's Test yields a significant p-value (p < .001), indicating unequal covariance matrices of (X) across (3 variables) between (2 groups), it raises concerns about the assumption of...

17 April 2024 1,234 4 View

Can SIMPER (vegan, R) analysis be done on binary distance matrices, particularly those containing ASV data?

Hello! I am trying to characterize communities of eukaryotes living in biofilms using V4 region 18s amplicon sequencing data. Working with this type of data is new to me, and very interesting!...

04 April 2024 6,603 1 View

How to homogenize microtome sections to extract protein?

We plan to isolate proteins from microtome sections, but we do not understand under what conditions this can be done. What matrices for lysis, what volume of buffer, etc. Maybe someone has...

27 March 2024 1,832 0 View

Substitution matrix for codon (molecular evolution) ?

Hello, Does anyone knows how to get actual substitution matrices for codon ? I can get the amino-acid substitution matrices through the GiPhy website...

24 March 2024 5,614 0 View

If a deep learning model has precision, recall, and F1-score all at 100%, but the accuracy is only 99.9%, is that acceptable?

I have built a hybrid model for a recognition task that involves both images and videos. However, I am encountering an issue with precision, recall, and F1-score, all showing 100%, while the...

09 March 2024 8,956 18 View

How do I understand the payoff matrix in Axelrod and Hamilton?

I am fighting my way through Axelrod and Hamilton (1981) on the Prisoners Dilemma. this is the payoff matrix they present for the PD. But they only present the payoffs for player A. Normally,...

13 February 2024 6,294 1 View

Can i know how to calculate volume fraction for polymer matric nanocomposite?

to know the volume fraction

03 February 2024 9,666 3 View