How to find out moment of inertia of hollow conical frustum having circular cross section?

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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

Can you connect an HPLC to a Mass Spec only at a certain time point?

Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...

11 August 2024 8,141 3 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 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

Can formaldehyd-fixed gelatin be melt?

I am puzzled about the properties of gelatin, when used for tissue-embedding. Hard gelatin can be melt again by temperatures about 40°C. Formalin-fixed gelatin is like crosslinked protein and...

07 August 2024 1,686 1 View

How to fix errors in my heat transfer steel structure with reinforced concrete slab model Abaqus?

I have modelled a steel structure using beam elements in Abaqus and attached to this structure reinforced concrete slab. The analysis that I am making is heat transfer of the structure. The...

07 August 2024 1,028 0 View

Unusual intensity drop in some sections of chromatograms in DDA?

Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...

07 August 2024 3,218 4 View

Microtome tissue sectioning - How to prevent chatter of paraffin tissue specimen sections?

Hello everyone, I have recently started using the microtome device for sectioning of paraffin-embedded mice lung. While I had some success in sectioning and observing proper ribbons, some of my...

06 August 2024 666 4 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

Where to find a gene list for CRISPRa/i library screening of regulatory factors that affect pathogenic Th17 differentiation in PBMC?

I want to perform a CRISPRa/i library screening for candidate regulatory factors that affect pathogenic Th17 differentiation in PBMC. But I am wondering how to define the size of gene library, so...

31 July 2024 2,150 0 View

Hello dear researchers. I would like to know what is a normalized mass in an EDX analysis?

EDX analisys

31 July 2024 5,947 2 View