What is asphalt rheology?

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Are there instances where molecules with larger molecular weights exhibit greater mobility than those with smaller molecular weights?

Hi, I know that low molecular weight (MW) molecules generally tend to have higher mobility, while high molecular weight molecules tend to have lower mobility. However, in my experimental...

06 August 2024 1,495 2 View

Usage of internal standards in LC-MS/MS analysis?

Have you ever seen a LC-MS/MS method uses both internal standards and external standards (in matrix matching purpose) but the concentrations of internal standards are outside the calibration curve...

05 August 2024 3,084 6 View

How to treat monolayer culture cell line with essential oil?

Hi all, may I ask you for advice about treating monolayer culture cell line with essential oil. Due to the hydrophobic character of the oil, I am concerning how can it equally affect to all the...

31 July 2024 5,301 2 View

How can I calculate formation energy using VASP-Ab-initio?

I would like to calculate the formation energy of P2-Na0.67Fe0.5Mn0.5O2 based on DFT, what should I do step by step. Any help would be appreciated. Thanks.

29 July 2024 8,248 2 View

What is the relationship between protein structure and N or C terminal tagging choosing?

I want to do 2,3-butanediol dehydrogenase(BDH) enzyme purification to confirm its activity for 2,3-butanediol. Before that, I need to confirm which N or C terminal tagging is better for enzyme...

28 July 2024 366 3 View

What exactly is it about biotechnology and medical research?

I'm very interested in biotechnology and medical research and I'd like to meet a professional here and talk about it together

28 July 2024 3,798 4 View

Are there always been barcodes, apapters and primer sequences in the FASTQ files of NGS?

Hello researchers, Sorry for my stupid question. I am learning the QIIME2 workflow for analyzing some 16s amplicon NGS fastq data. I found a very nice paper with data and code public available...

20 July 2024 5,405 2 View

Why is this tissue slice different?

This is a slice of intestinal tissue from the Chinese mitten crab (intestine in the upper right corner). I injected WSSV into this horseshoe crab. Now I want to know what these red spots next to...

18 July 2024 5,602 0 View

Where do I download the codes, databases commonly used by researchers?EMG,EEG,etc?

Where do I download the codes, databases commonly used by researchers?

16 July 2024 295 0 View

How to download fasta files in "gene features" format from NCBI with multiple samples in R?

Hello, I was attempting to download some sequences data from NCBI. The format "gene features" could help me extract certain gene fractions using the names, but I found that it seems to be...

04 July 2024 9,875 1 View

How to load and plot 2D-PIV (particle image velocimetry) recorded velocity vector field in Techplot?

Dear Researchers I need to know, how to load and plot 2D-PIV (particle image velocimetry) recorded velocity vector field data in Tecplot? Thank You

02 August 2024 3,615 1 View

If modulus of elasticity is divided by any inertial or dynamic pressure (1/2rhov^2), is there any dimensionless number present to represent it?

While deriving for a momentum equation with elastic stress effects, I am planning to put a ratio between elastic modulus (in Pa) and dynamic pressure (in Pa) in a simplified form. I am not...

23 June 2024 8,059 1 View

Material is visually liquid, but rheometer shows G'>G". Why may this be?

I made a material which loos like liquid, but when I do the rheology test, the G'>G" . In my opinion, I think it means it was a solid or a gel. The test parameters are like this and the result...

19 April 2024 6,589 2 View

The relationship between gradation and asphalt index?

The gradation of different asphalt mixtures is closely related to the asphalt index, so how to determine whether the asphalt index under different gradation is appropriate in the project?

17 April 2024 7,066 1 View

Asphalt Surfacing on Steep Streets?

We have a number of very steep streets with up to 30% grade. Whilst it is unlikely that we would build streets with that grade any more, many still exist with bitumen or asphalt surfaces. These...

25 March 2024 7,469 4 View

I need help about rheology, please ?

i need to know the answer of this question please with some references can help me

21 March 2024 4,364 0 View

How can we measure surface velocity?

Hi everyone, I plan to work on a stramtable (a physical model) to model a river. As I used to work on open-channel flumes, I was curious about the flow measurement. The depth and average velocity...

14 February 2024 336 2 View

Can I determine quantitavely the material's mechanical characteristic by G' and G"?

I determine the temporal behavior, frequency, and strain dependency of the hydrogel by rheology. I just wonder if I can determine the mechanical properties of my gel by using G' and G" taken from...

07 February 2024 4,787 2 View

How are rheological parameters, SYS, DYS, and PV, determined for 3D printable mortars using rheometer are correlated to actual printing process?

For example, Data obtained from a rheometer is as follows 1. Static yield stress - 1400 Pa, 2. Dynamic yield stress- 640 Pa, 3. Plastic viscosity-68 Pa-Sec, How are these values exactly...

24 January 2024 6,120 0 View

Suggest any good article on Gel Propellants used in aerospace applications. Also are gel propellants currently in use?

gel propellant, rheology, aerospace

23 January 2024 9,151 1 View

Ahmad K. Sleiti

There are papers on that, google them. Example:

https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP18520S.htm

Abdelkader BOUAZIZ

Dear all, following are interesting documents. My Regards

https://www.researchgate.net/publication/320280991_What_You_Need_to_Know_About_Bitumen_Rheology

https://www.sciencedirect.com/science/article/pii/S2352146516303234

http://www.asphaltinstitute.org/training/seminars/rheology-of-bituminous-materials/

https://doi.org/10.1155/2013/239036

https://ascelibrary.org/doi/10.1061/%28ASCE%29MT.1943-5533.0000712

Akram Jassim Jawad

Dear Wu Zong Han

I have attached some useful articles.

Regards.