How to indicate the degree of litter decomposed by microbes?

Any technique could detect the degree of litter decomposed by microbes? Or any indexes could do this job? I want to split the contribution of microbes during decomposition, so any suggestions...

23 February 2021 1,362 5 View

How to improve dissolution of neosome?

I have made neosome from herbal drug. Neosomes are stable. But I face problems in dissolution. I used minimum ratio of 1:1:0.25 ( Drug:span 60: Cholesterol and GMs. Now how can I active better...

17 February 2021 3,584 1 View

Hi, could anyone suggest any mammalian expression plasmid that has a GFP as a selection marker?

I am looking for a plasmid that can express my gene of interest without GFP fusion. But I want its selection marker like neomycin replaced by GFP or any other fluorescent protein so that I can...

29 October 2020 2,247 3 View

Predict charge on a compound at different pH?

Dear fellow scientists, Do you know of a software or a resource base which can predict the charge on the analyte at different pH conditions? Thank you, Abhishek P.S. I am new to HPLC, even a...

19 October 2020 8,605 3 View

How to define Darcy's flow for pore pressure cohesive element in Abaqus?

Hi everyone, I am trying to define a Darcy's flow for pore pressure cohesive element in Abaqus. When I give permeability to the elements, the output of tangential flow rate (GFVR) is always shown...

11 October 2020 1,195 3 View

What is the model equation between resistivity and temperature of a extrinsic semiconductor?

Can anyone Tell me what is the model relation between resistivity and the temperature for a extrinsic semiconductor. Kindly provide with summarized clarification & model equation between...

30 August 2020 6,182 11 View

What is timely Supply chain management issues to be researched as a result of the COVID 19 pandemic?

Dear Research Scholars, Would you please share your opinion on "What is timely Supply chain management issues to be researched as a result of the COVID 19 pandemic?" Thanks Shuvro Sen

22 July 2020 6,995 15 View

Does anyone have a case study of kick/influx and fluid losses during drilling, while MPD (managed pressure drilling) system is active?

Looking for a case study where severe influx and loss events were experienced even when a MPD system is installed and active. Interested in the sequence of events and mitigation steps. A real well...

12 June 2020 8,922 3 View

My SDS gel takes 4-5 hours to run completely. Can someone please help me understand what might be going wrong?

I am performing DNA-Protein Binding assay using Dyna beads. In order to check the bound protein i have to run SDS PAGE. the problem I am facing is my gel takes 4-5 hours to run completely. I have...

09 June 2020 7,358 1 View

Large sample sizes and parametric or non-parametric tests?

I have been reading several sources mentioning that when you have large enough sample sizes (some say 20, others above 200?) then parametric tests, such as t-test, are robust against non-normality...

07 June 2020 3,354 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

How to make Fast Green FCF from powder?

Hi everyone We need Fast Green to electroporate plasmid into mice embryos, therefore we simply need it to see some color in the liquid we are electroporating so that electroporation is more...

07 February 2021 1,671 2 View

Which is the best software for the simulation of tribological properties of materials?

I want to simulate the tribological properties of solids, liquids, and fluids, please suggest good software.

02 February 2021 3,947 3 View

Does anybody work with CoolLED in fluorescence microscopy?

I have trouble with exciting wavelengths higher than 460 nm while e.g. ex with 405 nm works. Filtercubes are correc, as I used them with my old xenon lamp before... I work on axiovert200M and with...

25 January 2021 5,201 2 View

How to prepare a liquid sample for FTIR spectrum?

I have a ethanol-water 50% extract of mango peel. I purified mangiferin from the extract with filtration and precipitation. so i obtained a low concentrated extract which i want to se the IR...

24 January 2021 8,880 7 View

Why high voltage and current (and some gases) Cause Spray-mode metal transfer in Gas-Metal Arc Welding (GMAW)?

This transition phenomena of Globular to spray mode as voltage , and especially current is raised, is very commonly known to Manual Metal Arc Welding (MMAW) and Gas-Metal Arc Welding (GMAW)...

20 January 2021 7,984 2 View

Can you have pressure inlet and velocity inlet at the same time?

I was reading a reference (Reitz-A Photographic Study of Flash Boiling Atomization). In his experiment, his boundary condition is delta p and constant velocity. The liquid injection pressure was...

18 January 2021 842 9 View

How can you confirm new liquid FTIR cell fits calibration?

We have an FTIR instrument which was calibrated in transmission/absorption mode using a set of cells for different ranges of D2O concentration. One of the cells at high range broke and the new one...

16 January 2021 4,791 2 View

Where can I find these two papers?

14 January 2021 1,572 3 View