How do I make an acetic acid standard curve using phenol red?

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Can a Two-Lens System Improve Collimation of a Diode Laser for Scattering Experiments?

Hello Optics community, I'm currently setting up a scattering experiment using a Class 4 blue diode laser with a 10 CW power rating. The challenge is in achieving a tightly collimated beam around...

15 April 2024 986 0 View

Why negative dielectric loss is coming at lower frequency range i.e from 4 to ~100 Hz?

I have performed the temperature dependent dielectric measurements;with proper checking of all electrical connections of electrodes, sensors,heater etc.as well as their proper resistance of...

07 April 2024 7,625 1 View

How substrates can change the mophology of grown metal oxide film?

I'm currently engaged in research focused on the expansion of transition metal oxide thin films. Our approach involves depositing transition metal films on two distinct substrates using either...

02 April 2024 5,783 4 View

Why Raman spectra changes when different laser sources were used for the same sample?

When I was doing Raman spectroscopy, I observed that for the same sample (thin film), using two different laser sources gave different Raman spectra. We know Raman Shift is materially dependent...

02 March 2024 7,770 4 View

Concrete failure point in Abaqus?

Hi all! There is an optional feature in Abaqus to define a concrete failure point by going to 'edit keywords' and adding '*concrete failure' for concrete damage plasticity model. Can anyone please...

12 November 2023 5,388 3 View

Stress vs strain plot from Abaqus?

Hi all! I am trying to understand the stress vs strain plot for my model. I am using Abaqus/Explicit so 'LE' is the strain that I selected for output. I am trying to understand the trend of stress...

29 October 2023 4,363 1 View

Why am I seeing fluctuation in the displacements?

Hi everyone! I am working on ABAQUS model which consists of a reinforced concrete wall and has a cantilevered W-shaped steel beam embedded (see attached picture). The steel beam is subjected to a...

21 October 2023 3,157 1 View

How to do IR drop compensation for non aqueous system?

in particular DES and Ionic liquides system?

19 October 2023 8,781 2 View

How are the shells useful in core@shell nanostructures for energy storage purposes? Can thickness of shell play a vital role for storing energy?

How are the shells useful in core@shell nanostructures for energy storage purposes? Can thickness of shell play a vital role for storing energy? Is there any relations between thickness of outer...

16 October 2023 9,275 1 View

The high dielectic constant materials merge with low dielectric constant materials for energy storage purposes. WHY?

Some polymers having low dielectric constant used with high dielectric ceramics. But why we are merging these two high and low dielectric materials?

16 October 2023 2,170 3 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

The aqueous fraction of the hydroethanolic extract is showing the presence of palmitic acid. What is the mechanism responsible ?

Palmitic acid presence in aqueous fraction

05 August 2024 8,624 4 View

How to convert g/kg Humic acid dose to kg/ha?

I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?

02 August 2024 7,186 6 View

Could someone explain the basics of working with enzymes?

I'm interested in learning about enzyme usage. Could someone explain the basics of working with enzymes? I understand they're different from standard chemicals, but I'm uncertain about the...

01 August 2024 5,460 5 View

What are some diseases that are caused by overactivity of enzymes?

I want to choose a resarch topic regarding enzyme inhibition. So I did my research and found out most of the diseases that originate from enzymes were actually caused by the "deficiency" of...

30 July 2024 2,483 5 View

Inquiry on Maximum Nucleic Acid Volume for 2.5 mL Liposome Solution?

I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...

30 July 2024 6,420 1 View

Shortage Cost Hypothesis?

What can be a hypothesis related to the Stock out Cost or Shortage Cost?

29 July 2024 9,259 2 View

Standard curve of H2O2?

Hi, I need to prepare a standard curve of H2O2 to evaluate the primary products of oxidation. H2O2 I have is 35%. How do I prepare a stock of H2O2 10 microlitere. If s.o has experience, I would be...

26 July 2024 3,460 2 View

Why is trifluoroacetic acid (TFA) used in c-18 column?

I would like to know the role of the TFA (trifluoroacetic acid) used on reverse phase chromatography c-18 column. It's is often used with a concentration of 0.1% on the mobile phase.

23 July 2024 8,075 3 View

Can we add calcium carbonate to any media as an indicator for lactic acid producing bacteria?

As mentioned in literature the addition of CaCO3 to MRS Agar media is considered as an indicator for lactic acid producing bacteria, so I wonder if we can add CaCO3 calcium carbonate to any other...

20 July 2024 7,504 0 View