How can I connect HC-05 to epoc x ( EEG ) sensor ?

Greetings , my name is Abdul and I have this research on how to move a module car by brain wave . The EEG sensor I have is emotive epoc x , I did the data analysis and am ready to move the car but...

11 January 2021 7,204 1 View

Why trans protons and antiperiplanar protons have higher coupling constants in HNMR?

Why in HNMR the coupling constant of trans protons (typically ~17Hz) is higher than the cis protons (typically ~10Hz)? Also, why the antiperiplanar protons in a cyclohexane derivative have higher...

11 June 2020 4,731 4 View

Can I proceed Heck coupling on a compound in the salt form?

Can I do heck coupling reaction on a compound in salt form without turning it into a free base? As for example doing Heck coupling on p-chloropyridiniumchlroide. I don't want to turn my compound...

19 April 2020 5,593 12 View

Is 0.5 ml of DMSO enough to react my (200mg) Ar-Cl with 1.2 equivalent of primary amine using Ullman reaction?

I'm trying to react Ar-CL compound (200mg) with a primary amine (1.2 equivalent), and I've found in the literature that they're using a very low amount of solvents (like 0.5ml) to proceed the...

17 March 2020 1,016 5 View

Can I proceed N-Boc protection for an organic compound which is in the di-phosphate salt form?

My di-phosphate salt compound contains two 3ry amino groups involved in salt formation and a one 2ry amine group that's not involved in salt formation. I wanna proceed N-Boc protection for this...

15 March 2020 945 3 View

My supervisor told me my question and hypothesis are broad and too obvious, what should I do I already finished writing?

So I am writing about hate speech and chose two case studies from Denmark and France. And what I found is that hate speech is heavily influenced by nationalism but my supervisor told it is broad...

03 March 2020 658 3 View

How can I change the density in Abaqus in each step?

Hello, I am trying to model collapsible soil in Abaqus, and I would like to change the density in each step to capture the collapse. However, I cannot use the field variable method because it can...

31 December 2019 6,914 3 View

HPLC actinomyceyes active compound ?

I have actinomycetes extraction and I need to detected by HPLC, so I need the protocol of hplc RP-8 chromatographic column

29 December 2019 7,578 3 View

Probelm with expressing hetrologous proteins using Pichia pastoris?

07 December 2019 7,502 6 View

How to choose the stimulus for T-cell activation assays?

When doing T-cells activation assay, for example looking for CD25 ,CD69 expression or ELISA for cytokine release, is there a difference between the coated antibody or coated protein stimulation...

08 November 2019 674 3 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

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

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View