What is the best way to calculate the R-value of irregular wall section?

I am interested to calculate the R-value of an irregular wall section made with different concrete mixtures that has different thermal conductivity property

12 September 2020 3,633 3 View

No title

26 July 2020 6,370 8 View

Software to draw chemical preparations (glassware, agitation, ect ..) ?

I saw in a lot of scientific article, in chemistry since I am a doctoral student in chemistry, the authors use software to draw their manipulations, I am willing to have some software to train me.

12 July 2020 2,145 3 View

What's your recommendation for high performance, yet stable, organic or inorganic HTM used in perovskite solar cells?

I'm looking forward to a low cost efficient and stable material for hole transporting layer in perovskite solar cell. My light harvester layer is a Cs2AgBiBr6 , band alignment of mentioned double...

06 April 2020 5,046 3 View

No title

18 February 2020 7,504 10 View

What are the free sites or software that are widely used for illustrations in the high indexed journals?

I need sites or software that may help in drawing (illustrating) my data to be suitable for publication.

10 February 2020 2,685 3 View

What are the current research areas in Management Information Systems using Data Mining ?

Can somebody recommend me a data mining in Management Information Systems research topic

06 January 2020 4,763 5 View

Whether material exists or can exist that is not elastic but has a linear behavior?

Dear researchers Whether material exists or can exist that is not elastic but has a linear behavior? In fact, the loading slope with the loading belt is not the same and has a strain remaining in...

28 April 2019 4,960 4 View

What is better, combined application of N fixing bacteria, P sol. Bacteria, and K sol. Bacteria, or single application depending on nutrient need?

is it good idea to apply the bacterial inoculants N fixing bacteria, P sol. Bacteria and K sol. Bacteria in the same time to help plants to get more of the primary nutrients? or better to apply...

23 May 2018 2,961 3 View

I need a natural substrate srface to be smooth less than 1nm roughness and be superhydrophilic. any recommendation?

I need a substrate srface to be smooth less than 1nm roughness and water rest on it in compelete wetting regime. the coated surfaces roughness usually more than 1nm. do you have any...

04 February 2018 2,130 5 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

Why do high doses of humic substances inhibit the growth of corn roots? Is there a toxicity effect?

Length, volume, surface area and dry mass of corn roots treated with humic substances increased up to 13 liters per hectare and decreased with higher doses.

02 February 2021 2,190 4 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

Could anyone suggest the appropriate composition of ball milling spheres for coal ash treatment?

I have built a ball milling to use mainly on the fragmentation of coal ash. Now I need to acquire the spheres to operate it. Steel spheres are cheap, but I am afraid they can liberate iron as it...

06 January 2021 6,433 2 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

How to model a graphite-bearing rock using Perplex (pseudosections)?

Dear all, I am struggling to model a rock which contains the assemblage K-white mica + Na-white mica + chlorite + quartz + graphite + rutile. I have followed step by step the tutorial available on...

22 November 2020 2,387 2 View

What is New Next Generation Attenuation Relationships (NNGAR) and how are they different from other attenuation relationships?

Dear researchers The provisions of ASCE 7-10 states that New Next Generation Attenuation Relationships (NNGAR) has been used in the process of Probabilistic Seismic Hazard Analysis (PSHA) to...

15 November 2020 1,132 4 View