How the least principal stress (typically sigma h) vary in the shallow subsurface (0-500 m) in deepwater settings? What are the controlling factors?

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How to calculate stress at the cross section of spherical particles within a matrix?

Hi all, I am currently working on some background calculations before I start a new project related to metal matrix particulate composites. I am trying to find a way to calculate the stress at...

19 February 2021 8,503 3 View

Posthoc test after two-way ANOVA (two factors with two levels)?

Hi everyone, I was wondering if runnig a posthoc test regardeless of a significant interaction might make sense. I have prepared a dataset with obviously invented data but which can help to the...

02 February 2021 8,061 1 View

How can I use amylase enzyme to digest molluscan tissue before DNA extration?

Hi, I have a problem with a hight contet of mucopolysaccharides in some molluscan samples. I tried different DNA extration procolols but I can't already remove all the molecules that inhibit PCR...

01 January 2021 8,900 3 View

Will the spread of the new SARS-Cov-2 strain affect the efficacy of mRNA-based vaccines?

Recent studies have highlighted the isolation of a new strain of SARS-Cov-2. Could the new discovery compromise the effectiveness of the vaccination campaign ???

21 December 2020 7,516 4 View

Metasurface S parameter measure setup. How to do that?

Hi. I want to simulate the S mesurament setup of a metasurface. I took an horn antenna and simulated it's gain at my frequency. The I placed one on a side and the second on the opposite side....

16 October 2020 2,714 3 View

Is temperature measurement really useful as a screening measure for COVID-19?

The measurement of the temperature at the entrance to some structures or hospitals is a universally adopted measure in prevention strategies. There are two questions: considering the high number...

31 August 2020 5,843 12 View

Which could be a good DL technique for tracking an object and check for his integrity?

Hello everyone, I'm working on a computer vision project in which I need to detect in real time a moving object and check whether is still integer or not. Images will be supplied from a 4K...

05 August 2020 2,460 2 View

After the shocking case of George Floyd, should the physical restraint techniques used in the police and psychiatric settings be recoded?

George Floyd's case shocked the world. Physical restraint is a method used by the police but also in the management of psychiatric patients who pose a danger to themselves or others. In your...

10 June 2020 1,331 9 View

Can the political orientation of a medical / scientific journal editor influence scientific choices?If so, it'is morally and ethically acceptable?

Donald Trump's statements and the political opinion that publishers, especially American publishers, had of him profoundly indicated the editorial lines of the main scientific newspapers. Most...

10 June 2020 8,913 15 View

How to model in Arena Rockwell that all entities must clear their tails at the end of the simulation?

I am modeling the flow of visitors during a working day in a museum. The main problem is that I don't know how to model in Arena Rockwell the fact that all entities must clear the queue at the end...

20 February 2020 9,457 1 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How much cell pressure and back pressure should I apply to start for triaxial test for different types of soil?

We have recently purchased a triaxial test instrument (MATEST) for testing different types of soil. After installing software, we are facing a issue of saturation where the samples does not...

23 February 2021 7,194 4 View

How to consider effects of rapid warm adaptation in modeling of ecological impacts of warming?

I would highly appreciate it if my fellow ecologists (biologists) provide their opinion on the thoughts below [esp., shortly tell us which path may be more effective, if they know another way, if...

15 February 2021 3,642 6 View

Is it possible to prepare clay minerals by mixing pure oxides of required elements? What would be theoretical difficulties with it?

Practically this is not at all necessary. But theoretically, would hydrous/hydrothermal synthesis be enough (like mix 1 mole alumina gel and 4 mole silica gel and gently heat) or would it require...

26 January 2021 6,403 3 View

Do you have information about synthetic diamonds and their environmental impact?

I am doing a deep research on the comparison of the process of extraction of natural diamonds and synthetic diamonds, and their environmental impact I would appreciate you could share your...

19 January 2021 1,359 3 View

Johnson et al., 2006 Geology of South Africa?

I am wondering if there is a digital (PDF) version of this book available or if anyone is willing to share this work. It is no longer available from GSSA (Geo Soc. S. Afr) nor does my library hold...

13 January 2021 5,571 2 View

Is there any relevant technique for mesocosm studies in marine environment using Nanoparticles?

I am planning to perform mesocosm study in simulated marine environment using Phosphorus based nanoparticles, i would be using marine micro-organisms in it. kindly suggest me some effective...

07 January 2021 5,877 3 View

How does titanium dioxide (TiO2) as a coating's component enhance the coating performance in terms of anticorrosion??

Greetings, Recently, I was asked by a researcher how does TiO2 enhance the coatings polymeric structure making it able to reduce corrosion reaction by preventing the penetration of aggressive...

02 January 2021 5,257 5 View

Is there any chemical safe for sea environment, but could be used for repelling planktons and microorganisms?

As an example of Julia Child, whose first receipe was shark repelent, my team and I are looking for some chemicals which wont harm planktons but will help keep planktons from our robot in sea.

20 December 2020 9,616 4 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