Please, is there suitable solvent to fractionate fatty esters into medium molecular weight fatty esters and high molecular weight fatty esters?

I want to separate a complex mixture of esters into medium and high molecular weight esters using solvent extraction.

11 October 2020 9,891 2 View

Can You Recommend good tutorial materials and literature on grid forming and grid following converter models?

Can anyone recommend good tutorial materials and literature on 'grid forming and grid following converter models'?. I will appreciate your recommendations and suggestions. Thanks.

02 July 2020 9,374 3 View

Is there any open source software available to model the microstructure of cementitious composites?

I will like to model the microstructure of concrete/mortar, is there any software to model the resulting products? Thanks

20 January 2019 1,099 2 View

What is the best way to coat PVA fibers with oil agent?

PVA fibers are modified with oiling agents to reduce bonding between the fiber and the cementitious matrix. What is the best type of oiling agent and method of application is most...

05 December 2018 2,055 1 View

How to get percentage contribution of factors in design expert?

I'm using design expert software for the design of the influence of different factors in my experiment. However, I couldn't get any section that shows the percentage contribution of each factor on...

29 November 2018 6,125 3 View

Is there any non destructive test that can be improvised in the lab to estimate the strength and permeability properties of concrete?

Non destructive tests equipment for concrete are quite expensive and not readily available. Is there any non destructive test that can be improvised or built with commonly available materials to...

27 November 2018 5,552 3 View

What are the emerging supplementary cementatious materials that can be used to replace cement?

The use of supplementary cementitious materials (SCMs) is increasing rapidly as they can be used to partially or totally replace OPC in concrete. The most common types of SCMs are fly ash, slag,...

25 November 2018 9,400 12 View

Why is high volume slag associated with high shrinkage in cementitious composites?

I will like to know why there is always high shrinkage when slag is used at larger percentage replacement of cement. The reasons in terms of its chemical reactions with OPC and the physical and...

22 November 2018 9,609 3 View

Can you suggest a PhD research topic in Renewable/Sustainable energy?

Fellow Researcher can you please suggest a relevant PhD research topic in Renewable/Sustainable energy Systems? I'll appreciate if you can help me identify a clear problem and an incline to the...

21 November 2018 8,162 17 View

How to improve the sustainability of ECC?

Engineered cementatious composites are high performance composite and are gaining huge research recently due to their enhanced ductility and durability. What are the major ways to improve the...

18 November 2018 6,898 14 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

Special issue on PLS-SEM in Mathematics. Are you interested?

21 February 2021 5,601 3 View

What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

Where I can find materials to learn Fuzzy VIKOR methodology?

Please suggest ways to learn Fuzzy VIKOR methodology in a best possible way. And is there any toolkit available for the same? Thank you in advance.

20 February 2021 8,271 3 View

Can someone let me know literature on Intuitionistic Fuzzy Information Systems?

Fuzzy Information Systems are well known long since. There are two popular type of such systems in the form of Mamdani model and Sugeno model. Intuitionistic fuzzy sets are generalizations of...

19 February 2021 3,118 1 View

Can we use image data in MATLAB Neuro Fuzzy Designer ?

I have remotely sensed data (image) that I want to use in the Neuro-Fuzzy Designer apps of MATLAB. Is it possible to use an image file in the Neuro-Fuzzy Designer app or only numeric data is...

17 February 2021 1,205 5 View

How can I obtain a sine function along a path with known equation?

I have a symmetric airfoil with known equation. Now a sine function passes along the airfoil equation like following figure. I want to find the sine function in (x,y) coordinate system.

17 February 2021 1,594 12 View

How can we determine the positive definiteness of multivariable polyomial? Is there any MATLAB function available for that?

Can we check the positive definiteness of a multivariable polynomial using MATLAB functions? Of course in literature, there are few complex methods that use tensor algebra. However, before going...

16 February 2021 1,218 3 View