How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

How does GROMACS calculate the average structure of proteins?

I want to get a average structure from a pdb file containing multiple models. I used the command below: gmx cluster -f input.pdb -s topol.tpr -cutoff 20 -method gromos -av GROMACS...

25 February 2021 6,314 1 View

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The regenerated cellulose film was prepared by zinc chloride/H2O system. The zinc chloride had been washed away in the regeneration process, and the wet film which was not dried had uniform...

18 February 2021 9,538 1 View

R/Python package for time-intensity or progressive profiling in sensory evaluation?

Hi I've been looking for a stat package for my sensory evaluation data (progressive profiled which is a multi-timepoint version of descriptive analysis). Is there any available one to...

08 February 2021 9,170 3 View

How to make ppb level concentration ?

Hi, I've N2 gas cylinder and 100 ppm NH3 gas cylinder. With these two cylinders, I'd like to make a ppb level (1- 100) concentration. Any idea how to do that?

01 February 2021 3,264 2 View

How can I make sure the simulation results of the water droplet impacting on the wall using the FLUENT agree with the experimental results?

Dear researchers, I am modeling the process of the water droplet impacting on the wall with a constant contact angle. The specific calculation parameters are as follows: The droplet diameter is...

24 January 2021 1,020 5 View

Mysterious line across SDS gel?

Does anyone have the similar issue? A line across the denature SDS gel shows up after staining with Coomassie blue and there are many lines in every lane if you take a closer look. This gel had 15...

07 January 2021 5,610 4 View

How can I calculate packing density of particles by fomulas or softwares?

I have all data of particles, such as size distribution, or numbers. Is there any way that I can calculate the packing density of these particles? Assume that all particles are circular.

05 January 2021 4,272 2 View

After cellulose is regenerated in water, a cellulose hydrogel is formed. I want to know if there is crystallinity inside the the hydrogel?

After cellulose is dissolved and regenerated in water, a regenerated cellulose hydrogel is formed. I want to know if there is crystallinity inside the hydrogel, or it will not crystallize until it...

04 January 2021 7,466 4 View

How can I fix the density of system in coarsed grain simulation?

In the process of obtaining the nonbond potential of the Coarse-grained(CG) model, I need to simulate the CG model mapped from the conformation of all atom(AA). AA simulation process is...

02 January 2021 3,643 1 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View