26 March 2024 7 8K Report

Hi, What is this organism? I found it in Quaternary sediments!

More Maher Mandeel Mahdi's questions See All
How to visualize stress in a coating defined by "Skin" in Abaqus?

Hello All! I'm trying to model a contact between a coated substrate and a tip in Abaqus. The coating is ultra-thin compared to the geometry of the substrate. So I defined the coating using the...

16 February 2021 1,594 3 View

Is a Strong correlation between the Moderator variable and the dependent variable an issue for moderation model (model 1) in Hayes PROCESS?

In a typical moderation model with one moderator, is it a problem if the moderator and the dependent variable show a strong correlation (say 0.85)? What if a strong correlation exists between the...

27 January 2021 4,937 4 View

Which syringe filters (e.g., PTFE, MCE, PVDF, CA, PES, etc.) are the best to filter TBS/PBS buffer (pH 7.5-8.5) and glycine buffer (pH 2-3) solutions?

I intend to purify antibodies from serum using the affinity procedure, and I need to filter the binding (TBS/PBS) and elution (Glycine) buffers before applying them to my solution.

06 January 2021 5,769 3 View

Gear reduction for back-drivability of a motor?

Hi everyone, Does anyone know up to what reduction ratio of gear does a motor remain back-drivable? I want my robot to have safe interactions with the environment and other humans. Can you give a...

26 December 2020 7,142 3 View

How to export DigSilent Plots with high quality?

Hi all; I've started using DigSilent these days. However, I'm wondering how can I export the results with high quality the same as MATLAB plots as I currently do. Thanks

19 December 2020 2,666 2 View

How to assign initial stress to a coating in Abaqus?

Hello! I am trying to define/assign initial stress to a coating I modeled on a substrate. I defined the coating using "skin" function. I have tried "predefine filed" in load section. But it only...

10 December 2020 2,921 8 View

How to model a multilayer coating in ABAQUS?

Hello! I'm trying to model a multi-layer coating on a substrate in abaqus. The layers are homogenous and isotropic. My question is how should I approach the modeling? WHAT I'VE TRIED SO FAR: I...

09 December 2020 1,235 3 View

How can I calculate Nusselt number by using this equation (Nu = ht.gradTx * nx + ht.gradTy * ny + ht.gradTz * nz) step by step in COMSOL?

Calculate the Nusselt number using the COMSOL Program

09 December 2020 3,354 3 View

How to calculate sulfur loading of lithium -sulfur batteries using Li2S8 catholyte?

I am gonna use Li2S8 catholyte to introduce active material to cathode instead of using sulfur. May anybody kindly guide me about the way I can calculate the amount of sulfur (g/cm2) loaded on the...

07 December 2020 7,556 2 View

How to great data visualization and what example for it ?

i need explain data visualization and what type it and how great it by excel or other program > paper attached for help

30 November 2020 1,159 2 View

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Uncertianiny in using dry or wet basis in mixing a sediment with fuel oil?

Hello I'm currently working on a topic related to studying the anaerobic biodegradation of TPH in marine sediments. In this work, sediment should be mixed with fuel oil to a concentration of 20 g...

24 February 2021 9,839 3 View

What are the natural background values of Major,Trace and REE elements in sediments deposited by Indian rivers?

We are working on geochemical analysis of sediments derived from eastern and western ghats of India.

20 January 2021 8,963 6 View

How deep into the sediment do marine/riverine oligochaetes live?

I am working with intertidal muddy sediments. In one of my sites the sediment was extremely muddy (high % of silt), oxic layer was shallow, and there were a lot of oligochaetes. I would like to...

14 January 2021 7,269 4 View

How to identify paramagnetic, ferrimagnetic and ferromagnetic from magnetic susceptibility data ?

Dear All, I have calculated Xlf, Xhf, and Xfd% of my sediment samples by using Bartington MS2B magnetic susceptibility and got mass-specific magnetic susceptibility value on 10-8m3kg-1 (10...

28 December 2020 4,728 5 View

Is there any chemical environment or parameters to define or explain the sediment and soil profiles, are they separated by chemical parameters?

Sediment is relatively younger than the soil in the depositional environment as the sediments are consequence of the accretion of particles transported either by waters or by winds, whereas, soil...

12 December 2020 4,822 18 View

Which sediments are transported by Tsunami waves?

Share your opinion/experience. Thanks

15 November 2020 6,211 4 View

Isoabsorbance and 3D Plots are missing under the "Spectra" toolbar of Agilent Chemstation 1200 series software. How can I retrieve it please?

The Problem started after replacing the HPLC Pump from Quaternary to Isocratic pump due to pump failure. The configuration was set as the previous set up as Modular 3D LC System and the license...

11 October 2020 8,018 3 View

Any Book or Article on Pleistocene Planktonic Foraminifera and Calcareous Nannoplankton?

Dear all, I am working on the biostratigraphy of Pleistocene sediments from the high latitude region in south-east Indian ocean sediments. Kindly suggest me any book or articles in which the...

09 September 2020 1,544 9 View

How to quantify different phases of clay minerals (percent) of marine sediments using XRD?

Hi, I am interested in quantifying the abundances of different phases of clay minerals of marine sediments using XRD analysis. Any suggestions regarding the detailed method/software will be...

03 September 2020 3,031 8 View

Factor and Multivariate Analysis of Geochemical data (Generated from Geochemical Mapping using stream sediment samples)?

I want to know about any training module or step by step guide for doing factor analysis and multivariate analysis. This is required for analysing Geochemical data obtained from Geochemical...

24 July 2020 266 3 View

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