How does GeoGebra enhance STEAM learning?
I conducted a study to investigate stock market reaction to equity issues announcement and i ended up with 64 announcements and i then used the announcement day returns as my DV and investigated...
14 January 2021 1,127 3 View
I am preparing a protein that has a Zn finger for molecular dynamics. To indicate the finger of Zn a patch is placed in which the deprotonation of the cysteines is necessary so that the Zn ion can...
05 March 2020 1,425 3 View
28 February 2020 1,633 2 View
I have a reflectance data of my solar absorber coating from UV-Vis, I want to calculate the solar absorbance of my coating using standard reference spectrum AM 1.5 and thermal emittance of thesame...
15 November 2019 225 3 View
When I run a O2 and N2 standard in the gas chromatograph, the peaks are overlapped, How can I improve the resolution of the chromatogram. This situation is new, last monththe calibrationwent just...
22 August 2019 4,050 6 View
I an using the EVO LS10 SEM from Zeiss, I can see images on spot 0 of the aperture, however when the aperture is switched to spot 1 or 2, I am unable to see any image. Please what could be...
05 February 2019 3,902 1 View
15 September 2018 3,735 2 View
I'm trying to make smooth PVDF film using solvent casting dried under vacuum from 20 mL of 15% PVDF in DMF solution. The vacuum dryer temperature was at 55 deg C. After some time, this is what I...
29 January 2018 803 4 View
I try to isolate DNA from orchids tubers, the problem is they become kind of gelatinous because the polysaccharides.... so I want to get rid of them. Thank you!
18 September 2017 9,815 3 View
Any RG's member
02 March 2017 6,338 8 View
A student of mine is doing her thesis and needs to perform alkaloid extraction from a set of officinal drugs and has asked me for the best way to perform it. Now, the two main methods I can think...
06 November 2020 3,086 5 View
So I understand that essential oils are formed by steam distillation, and contain volatile, usually aromatic, compounds. Extracts are formed by immersion of plant matter in a solvent, and are...
12 May 2020 2,119 5 View
Depending on the type of oil, there is a ratio of 30 : 1 up to 3000 : 1 from raw material to essential oil (EO). If the raw material has pesticide residues, also these tend to be more concentrated...
23 April 2020 4,987 3 View
I am trying to design a counter-current heat exchanger that uses saturated steam at 100C to heat a process fluid from 18C to 40C of known mass flow. I need to determine the mass flowrate of steam...
30 March 2020 5,968 15 View
Apparently there is a belief that contaminated steam in the autoclave can contaminate your pipette tips while sterilizing them with biomolecules such as peptides and DNA, and that this can be a...
05 March 2020 1,439 3 View
I'm analyzing some data and having the issue that I found with a steam&leaf analysis that there are several outliers in the data. One the one hand I would like to put the data out, but on the...
01 February 2020 6,079 3 View
In order to simulate one process of SOFC with internal methane reforming, in the Reformer some reaction take a place like: CO+H2O = CO2+H2, C+CO2 = 2 CO, C+H2O = CO+H2, CO+3 H2 = CH4+H2O, C+2 H2 =...
01 January 2020 4,074 1 View
Consider a co generation plants associated with any process industries which were designed to meet the process electrical and steam loads from a extraction condensing steam turbines with an...
17 December 2019 6,752 3 View
Hi all, I am fairly new to Aspen and I need some help modelling an SOEC for steam and co-electrolysis. Every help will be received gratefully.
16 December 2019 5,986 3 View
I am working on parboiled rice. Steaming is the responsible for discoloration after parboiling due to Maillard reaction. How can I develop this color(Brown to white), kindly suggest me any...
11 November 2019 4,098 2 View