Buckling analysis of a cylindrical shell in Ansys APDL?

In Ansys APDL, We are trying to validate our shell model for nonlinear buckling analysis considering the initial imperfection (as given by Ahmed et. al.) We have attached our results as attached....

13 February 2021 9,200 5 View

In Ansys APDL the stiffened plate girder is not getting meshed after gluing! What to do?

This is a model of a stiffened plate girder. The APDL code is provided below for its geometry generation. It is not getting meshed after gluing all the volumes. If the volume is subdivided in the...

18 January 2021 4,839 4 View

What is the need of having weights at the output layer of an RNN ?

In RNN, Yt is the output which is given by the equation; Yt = Why.ht where Why is the weight associated with the output layer and ht is the current state. What is the need of having this weight...

11 January 2021 8,710 4 View

Are the citizens of CIS countries better off now in term of welfare or satisfaction after three decades of change in regime?

I am a research scholar from India. I wish to write a paper on CIS ( ex- communist) countries. I welcome to any researcher with strong idea about CIS countries. It will be joint effort intended...

02 December 2020 9,917 1 View

Why my IP injcetion drug for mice turn opaque after thawing?

Hi, I have prepared a drug solution that is dissolved in DMSO. We are giving IP injection to mice. The final stock concentration is 2mg/ml in 5% DMSO, 2% Tween-80 and 93% Saline. Before injection,...

18 November 2020 6,000 2 View

How to tackle the problem of constant val accuracy in CNN model training ?

I am new to the field of Neural networks. Currently, I am working on training a CNN model to classify XRAY Images into Normal and Viral Pneumonia. I am facing an issue of Constant Val accuracy...

29 October 2020 3,510 10 View

Can a defect level energy be higher than the indirect bandgap of a material?

The emission energy from PL is coming higher than the indirect bandgap of the material? What can be interpreted from this? Is it possible to have a defect level along 'K axis in the band structure...

15 September 2020 8,015 6 View

After what age we can ask questions directly to the children?

Upto which age group of children, we need the permission of parents? For which age group of children, we need to ask the parents, in case we need any information about them?

19 July 2020 7,751 2 View

How do I fix radical anion on a particular molecule of a dimer using Gaussian 09?

I did TD-DFT calculation of a dimer containing radical anion. Here, charge=-1 and multiplicity=2 in the Gaussian input file. After TD-DFT of that dimer containing two different molecules (let's...

11 July 2020 8,322 3 View

What are the methodologies for sedimentary provenance analysis?

In sedimentary provenance analysis, we use the petrographic methods, geochemistry, heavy mineral analysis, etc. I need the methodology for each technique to determine provenance. if possible then...

11 June 2020 8,530 4 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

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22 February 2021 9,932 11 View

How to prepare electrolyte of NaClO4 salt for Na-ion battery? Any problem with this salt?

Hello, I am trying to make anode for Na-ion batteries. I have no experience with preparation of the electrolyte for any batteries. NaClO4 salt are available and I am planning to use EC:PC as...

21 February 2021 8,132 1 View

Can anyone help or comment on solubilising chlorobutanol in aqueous injections in minimum time possible?

Please suggest solubilisation of chlorobutanol in injections. Tried pH and high temperature. But the issue is of assay drop. If anyone can suggest any solution. Its a commonly used excipient for...

21 February 2021 7,397 1 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View

What properties of water shall be analyzed and evaluated to test the effectiveness of activated carbon?

I would like to ask what other properties of water (pH and such) shall be analyzed and evaluated to test the effectiveness of activated carbon from filtering the contaminants present in the water?

20 February 2021 9,422 8 View

Phenol-pH graphic?

We want to use phenol pH graphic to measure the pH of mediums before and after inhibitor application to cells. We have phenol absorbence values at 460, 560 and 720 nm wavelength. When we measure...

20 February 2021 7,700 3 View