What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View

Is There are any idea to achieve H NMR signals for swollen compound ??

the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please

16 February 2021 8,801 3 View

What is the best way to do symmetry in ANSYS Fluent for flow between two concentric cylinders ?

I am working on Taylor Couette flow between concentric cylinders and the results are correct for the full case. however, I wanted to do symmetry case to improve the mesh. I have tried periodic...

11 February 2021 2,193 6 View

What is the success rate of the e-learning plan in achieving the objectives of the curricula?

I need to know the reliability of the evaluation results and the rate of achievement of the course objectives, Thank you (*-*).

02 February 2021 7,828 7 View

What is the success rate of the e-learning program in your country during the time of Covid-19?

I need to know the extent of the success of the e-learning plan in countries of different capabilities, Thank you (*-*)

02 February 2021 4,712 15 View

How can I get good bands by silver nitrate staining on SSCP method?

Hi Dear colleagues This was my first experience on SSCP, and I couldn`t get any band by silver staining! Staining with Et Br was successful. I mixed the PCR product with formamide loading dye,...

01 February 2021 8,788 6 View

Why Selenium nanoparticles synthesized by PEG 200 could not be scaled up ?

I could not synthesize Selenium nanoparticles by PEG 200 at up-scale ( more than 100 ml) as it got aggregated while at small amounts it works fine , I work with 850 PPM using selenium powder in...

08 January 2021 10,049 1 View

Solving a third order polynomial matrix equation?

I want to solve the following matrix equation with respect to the matrix variable X which is a real symmetric positive definite matrix. The given matrix A is real and symmetric, "a" is a scalar,...

04 January 2021 2,945 7 View

What is the best method to add nanoparticles in organic solar cell simulation using silvaco software ??

i built the structure of the organic solar cell (ito-P3HT_PCPM-PEDOT_PSS-al) then i used BEAM statement to add sunlight so what is the best method to add nanoparticles in layers

03 January 2021 7,107 11 View

How to Calculate Local and Average NUSSELT NUMBER IN FLUENT ANSYS ?

I am simulating a single flow in a 2D tube with a uniform heat flux applying on the outer surface. I found difficulties finding the Nusselt Number or in other words a correct way to obtain...

26 December 2020 4,054 7 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How can we theoretically calculate Elemental analysis(percentage) of atoms in covalent organic framework?

For example in one research article the Elemental analysis values of COF-TpPa-1 ( Triformylphloroglucinol (Tp) (63 mg, 0.3 mmol), Paraphenylenediamine (Pa-1) (48 mg, 0.45 mmol) are as follows...

24 February 2021 1,265 6 View

How to Control Whiteflies in coconut leaves?

24 February 2021 1,005 1 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 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

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

Any Homemade Organic Synthesis Practices?

Hi everyone, I am a teacher of Heterocycles Synthesis, Is there a home practice that you recommend for undergraduate students? A simulator would also be useful Due to the pandemic, students...

18 February 2021 2,769 4 View

How to find the capacitive response frequency from the impedance plot?

I have done electrochemical impedance by using cyclic voltammetry for one organic material. from that, I plotted bode diagram. but actually, I am very confused about how to find the capacitive...

18 February 2021 3,023 3 View

How to predict the reaction pathway for electro organic synthesis?

Can anyone recommend some any software/models available that can predict substance reactivities and the reaction yield under a specific set of reaction conditions process and proposing pathways to...

17 February 2021 2,383 3 View