How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

What does this PZC data mean?

I measured different kinds of catalysts which were dispersed in DI water.I firstly added certain amount of HCl and then used NaOH to titrate and measure the pH value. What does this result mean?

27 December 2020 5,728 4 View

How to analyze a time series of temperature mean whether different or not?

I have 6 culture tank, 2 treatment with 3 replicate. I test temperature of every tank everyday, for 14 days. Now I want to compare whether this 2 treatment temperature have significant different...

06 December 2020 834 7 View

Species Transport in Porous Media cannot pass through?

I'm using ANSYS Fluent 2019 with Space claim, my problem is involving moisture diffusion (therefore using Species transport). I found that my h2o can never pass through the porous zone. I have...

09 October 2020 5,301 3 View

How to set different moisture mass diffusivity for different material?

I'm modelling moisture diffusion into this Bi-material. Meaning one fluid diffuse into different 2 material (Pic below). Hence I would require to set different Mass Diffusivity & Porosity in this...

25 May 2020 528 3 View

Why not able to Import Pressure from FLUENT to Static Structural?

I'm currently doing a Modelling in Fluent (and Transient Thermal) and intend to Import Pressure Load to Static Structural. The Stress from Thermal Load was able to be imported but not from...

02 May 2020 2,910 3 View

How do we get features from Dictionary Learning?

I'm using dictionary learning for structured data, something like the credit card fraud and iris dataset. As we all know dictionary learning is similar to principal component analysis and it can...

02 December 2019 5,072 3 View

Can anyone recommend a self-efficacy scale for dietary behavior?

I searched a lot and find most self-efficacy scales are for diabetes or CVD or weight loss, etc. Even the DIET-SE is about low-fat and low-salt, I fail to find a scale only about 'general healthy...

01 July 2019 4,202 3 View

Has anyone purify protein bound to strep-tactin XT using desthiobiotin?

We just bought the new strep-tactin XT for protein purification. The manufacture recommends to use 50 mM biotin to elute the protein. While 2.5 mM desthiobiotin is suggested for protein...

13 June 2019 5,328 5 View

Can E.coli be used to produce short peptide?

For synthesis of short peptides that only contain 3-6 amino acids, it is easy to synthesize them by chemical reactions. However, is it possible that we can transform E.coli with plasmid that is...

27 December 2017 5,784 3 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

How to use measure capacitance change in COMSOL time dependent study ?

I want to measure change of capacitance due to relative displacement between two parallel plates in COMSOL. Distance between two plates changes with time. So I'm using a time dependent study but...

26 February 2021 8,567 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

Missing Data in Pretest and Post test- Experimental Research design?

Hello all, I am analyzing some pretest and post-test data that were given to evaluate knowledge of targeted vocabulary before and after the intervention. Pretest and post-test are identical and...

23 February 2021 9,400 7 View