20 November 2017 3 5K Report

I am interested in finding typical values for the damping ratio for different types of soils, such as:

Soft clay

Firm clay

Stiff clay

Sand

Gravel

Many thanks for help in advance.

More Mohamed Wehbi's questions See All
I have get this error when i calculated the geometrical optimization for prco3, it takes 12 hours until gives this message in the outputfile?

Fatal error in MPI_Allreduce: Other MPI error, error stack: MPI_Allreduce(1628)......: MPI_Allreduce(sbuf=000002459254A180, rbuf=000002459F86A140, count=4851, MPI_DOUBLE_COMPLEX, MPI_SUM,...

09 August 2024 7,615 1 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

How can we use mobile apps for improving students' academic performance?

Mobile apps can be a powerful tool for enhancing academic performance, how can we use mobile apps for improving academic performance

04 August 2024 9,492 0 View

Is someone interested in testing some of our new Alluaudite compounds (Molybdate) in the fields of heterogeneous catalysis and photocatalysis?

We have an original Alluaudite-Molybdate we want to test for catalysis and photocatalysis applications.

04 August 2024 2,261 1 View

Has anyone used Jump 2 before?

Jump 2 is the 1st app scientifically developed to measure your jump height.

31 July 2024 8,194 0 View

Why applying a saved template of a bar chart in a different/new one doesn't take effect in SPSS?

Using SPSS, I made my edits in one bar chart — e.g., font type and size, hiding grid lines, and colours, namely: blue, orange, green, purple, and grey for 5 bars, respectively, etc. — and I saved...

29 July 2024 1,981 1 View

IHC profiler in image j software. has anyone used it to quantify nuclear DAB positivity?

Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...

29 July 2024 2,229 0 View

While using the IHC PROFILER plugin in image j software, to quantify the epithelial cytoplasmic DAB staining do you crop remove the stromal tissue?

My question pertaining to the DAB staining in cytoplasm of human oral squamous cell carcinoma tissue. When quantifying the epithelial cancer cells do we have to crop remove the stromal tissue?...

29 July 2024 2,682 6 View

What is EPOC ?

Excess post-exercise oxygen consumption

16 July 2024 366 3 View

How calculate the conversion alph from tga analysis?

I read it Convert the y-axis from mass loss to degree of conversion (100-x)%. What if tga analysis have residual char, for example at mass loss% 27% Is it the same eqation to get conversion...

15 July 2024 4,218 1 View

Similar questions and discussions
Which/who is the best laboratory/researcher that can provide syntethised mixed-layer clays?

Hi all, I am looking for some syntethised samples of mixed-layer clays to perform infrared reflectance spectroscopy measurements in the VNIR-SWIR-MWIR-LWIR regions. Best regards, Lionel Fonteneau

01 July 2024 3,875 2 View

How to Differentiate Tuffaceous Matrix from Clay Matrix in Sandstone Thin Sections?

I am conducting a study on sandstone samples and need to accurately differentiate between tuffaceous matrix and clay matrix when examining thin sections under a polarized light microscope. While...

20 June 2024 3,270 0 View

Alternative to Centrifuge software (Krumm, 1996)?

Dear colleagues, does anyone know of a suitable alternative for Centrifuge software (calculating settling time for grain size separation by centrifugation), preferably one running on Windows 10 or...

17 June 2024 7,085 0 View

Dear friends, can anyone help me identify this strange specimen?

This barrel or vase-shaped stony structure was found in the Cretaceous shales. Its outer surface was surrounded by loose and thick limonitic and clayey sheets before I removed them. After...

04 June 2024 5,914 5 View

Why clay particles are predominantly negatively charged where whereas sands and silts are not?

What makes clay particles negative?

19 March 2024 8,050 2 View

How to calculate the crystallization temperature of the Illite/Smectite (mixed clay sediments) from stable hydrogen and oxygen isotopic values?

I want to find out the paleoenvironmental changes across the different sections (P-T transition sediments) of my study area (Southwestern China), based on the measured oxygen and hydrogen isotope...

05 March 2024 4,298 0 View

Identification of millimetered structures in sediment from core (Uzbekistan lake) ?

We found two strange structures in fresh watered lake from elevation higher than 1500 m a.s.l in Nuratau and Zarafshan ranges: 1: cristal in X or in "star-shape". Any ideas ? 2: fluter cylinder...

18 February 2024 1,306 2 View

Why does my clay contract after glycol treatment for XRD analysis?

Recently in my lab I’ve been trying to expand some Muscovite following two different protocols. I use XRD to verify the d-spacing after the treatment without ethylene glycol and with ethylene...

18 February 2024 3,608 0 View

Need journals on kaolinite clay and biopolymers?

I need more articles on kaolinite clay and the same clay treated by number of geotechnical methods

14 February 2024 607 2 View

Could you validate the research equation (model) below?

Using your own lab or field generated data, could you validate the equation below and post the results with a discussion of accuracy or shortcomings the equation? ln K = 4.94 - 0.38 W - 1.21 D K...

07 February 2024 7,401 2 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close