Where can I obtain high purity cheap choline chloride ?

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How can I calculate immobilized enzyme activity?

I immobilized the laccase enzyme with glutaraldehyde on silica airgel support. The protein binds to the support, but its activity is quite low. The color change takes place very little in the...

06 September 2023 1,270 2 View

DisplayPort based on Cyclone 10 GX?

4 transceiver channels are required for DisplayPort. Cyclone 10 GX FPGA; also comes in the form of transceivers BANK. There are 6 transceivers on each bank. A total of 12 Transceivers come in the...

18 April 2021 3,371 0 View

Is there a way to use waveguide ports for circular antenna design in CST?

Hi, whenever i use circular array i get this error "Waveguide ports must be aligned with Cartesian coordinate planes for the transient solver" Does anyone use circular array with waveguide ports?...

09 February 2021 4,315 8 View

SAR analysis problem in CST for antenna arrays?

Hi, i am trying to perform SAR analysis in CST but the problem is after simulation in the post-processing section the SAR tool is not activated. Therefore i cannot get the results. Do you have any...

23 January 2021 8,403 4 View

[JAVA]How to fix exception in thread error when using array of objects?

I am doing atm gui for my project in java. In my opinion using array of objects is the best option to store customer data. When i try to access it in an ActionListener method, i get this error:...

06 January 2021 7,233 4 View

How to simulate circular array of antennas in CST?

Hi, ive desined an array of antennas with 8 elements. When i sımulate it i got this error message in CST "Waveguide ports must be aligned with Cartesian coordinate planes for the transient solve"....

02 January 2021 7,776 6 View

What are the criteria of Kraljic's Purchasing Portfolio Matrix?

Dear All, For my PhD project, I am trying to determine which criteria and factors should be included for two dimensions of Kraljic's Purchasing Portfolio Matrix well-known in the procurement...

11 November 2020 8,301 5 View

How can i measure Qmax values of methylene blue adsoprtion correctly?

Hi everyone, I am studying on the adsorption of methylene blue using inorganic based adsorbents. As a result of my study, although the amount of adsorbed dye is approximately 95%, I found that the...

09 September 2020 7,866 4 View

How should I prepare lignin for atomic force microscopy?

Is there a simple way to prepare lignin (lignin particles from Black liquor) for AFM?

24 February 2020 1,523 3 View

Acetylation of lignin?

What is the purpose of lignin derivatization with acetic anhydride/pyridine (1/1, v/v) before Gel Permeation Chromatography?

13 October 2019 3,083 4 View

Who is more polar, choline chloride-malonic acid or choline dihydrogen citrate-malonic acid ?

who is more polar, choline chloride-malonic acid or choline dihydrogen citrate-malonic acid

08 May 2024 2,086 0 View

Is there any direct application of UV-Vis spectrophotometry analysis in determining the concentration of Pt, Pd and Rh in DES ?

I am using Deep Eutectic Solvent in extracting PGMs from spent catalytic converters, I wish to characterize the extraction efficiency using UV-Vis spectrometer. Is there any direct application and...

20 April 2024 5,404 0 View

Peut- on implanter dans un site de dysplasie cémento-oddeuse?

JE CHERCHE DES REVUES SYSTEMATIQUE SUR CETTE QUESTION

31 March 2024 6,107 1 View

How do I determine the boiling point of a combined solution? I've read of the liquid capillary method but is there a calculation which I can use?

I'm using Choline chloride, Propylene glycol and water (in various ratios)

26 March 2024 9,320 0 View

What is the resulting reaction or product of a Ternary Deep Eutectic Solvent when choline chloride, lactic acid, and citric acid are combined?

[(CH3)3NCH2CH2OH]+Cl- + CH3CHCOOH + HOC(CH2CO2H)2 -> ??? 2-Hydroxy-N,N,N-trimethylethanaminium chloride + 2-hydroxypropanoic acid + 2-hydroxypropane-1,2,3-tricarboxylic acid -> ???

25 March 2024 3,090 1 View

Biphasic eutectic solvents?

Any experience/recommendations for developing biphasic eutectic mixtures (hydrophilic + hydrophobic)? Particularly interested in terpenes-based eutectic solvents (as hydrophobic phase)+ choline...

18 March 2024 8,162 2 View

While doing propeller transient simulation on Ansys fluent, rotating zone contours corrupted. What is that reason?

I'm doing 3000rpm drone propeller computation on ansys fluent. First 1500 iteration steady state mrf zone is computed with SST k-w turbulance model. After convergence is done i change it to...

24 February 2024 9,935 1 View

Why are many hydrophobic deep eutectic solvents used for extraction under alkaline conditions?

If you want to design a hydrophobic eutectic solvent as an extractant, how can you make it used for solvent extraction under acidic conditions? How should the extractant be modified to move its...

20 December 2023 8,481 2 View

How to handle the limitations of overset mesh in fluent?

Some turbulence models such as DES and LES are incompatible with the overset mesh in fluent software. Is it possible to avoid or handle this problem vie UDF file and how?

20 November 2023 3,859 3 View

Is representative democracy really democratic? If, not – is there any way to put modern democracies on the right track?

Representative governments are actually mixed form of government, encompassing both democratic and non-democratic elements. The situation becomes hazardous for society when decision-making power...

19 November 2023 7,641 0 View