How to calculate edge preservation index between clear and noisy image ??

Edge preservation index measures the ability to maintain details of the image. how can i calculate it for a polarimetric sar image

18 December 2017 9,286 3 View

What is difference between direct bandgap and indirect bandgap ? How can we calculate direct and indirect bandgap from uv-vis data?

.

23 March 2017 8,837 3 View

Which solvents can be used it compound is not soluble in IPA and Hexane?

20 April 2016 8,431 1 View

What is the difference between charged pressure and mean pressure for cryocoolers?

I normally read the terms viz. charged pressure and mean pressure while browsing cryocoolers research papers. I do not understand what is the actual difference between them? How do both differ...

18 September 2014 1,465 4 View

Can we use the shooting method for first order equations?

I am currently doing numerical analysis of GM type Pulse Tube Cryocooler. Governing equations are a system of boundary value problems and one need to use shooting method to solve it (as per one...

13 March 2014 1,413 1 View

Why does helium behaves almost as an ideal gas at 50 K and above temperature at moderate pressure?

Why does helium behaves almost as an ideal gas at 50 K and above temperature at moderate pressure? What is the factor that decides 50 K temperature limit for ideal gas behavior?

29 September 2013 8,109 6 View

How to find shear strength of a material (SS 304)?

I want to use shear strength data of SS 304 for one application. How do we know how much strength any material possess in shear? How one can get the shear strength data of any material?

27 September 2013 6,653 5 View

Pressure boundary condition for pulse tube cryocooler?

I would like to know the meaning of d2P/dx2 = 0 which is the pressure boundary condition for oscillating machine i.e. GM Type pulse tube cryocooler. I want to know, how to deal with these pressure...

30 August 2013 2,195 2 View

Why does pressure ratio in GM type pulse tube cryocooler decrease as the temperature decreases?

I am working on GM type pulse tube cryocooler and I have found that pressure ratio decreases along with the temperature reduction. I do not know what is the reason. As the temperatures goes down...

09 August 2013 3,776 3 View

What is the optimal method to prepare a controlled porosity osmotic pump (CPOP) tablet for scanning electron microscopy?

In order to assess the shape and size of pores formed by dissolving the pore former in the semipermeable membrane structure, SEM images are needed. Cellulose acetate was used in the coating...

15 February 2021 6,135 3 View

Can we measure porosity of a composite by DSC (heat flow measurements)?

In the DSC conducted for A and B (image provided). B is a derivative of A. Can I conclude that the porosity of composite B is more than A, Since the heat flow is decreasing with increase in...

26 December 2020 9,104 3 View

How to find porosity of a sintered ceramic compact ?

I want to know the porosity of my sintered ceramic composite ? Please help me out

21 December 2020 4,343 6 View

How to change porosity on Ansys Fluent?

12 December 2020 4,612 3 View

Effect of adsorbent porosity on efficiency of adsorbent recovery ?

Hi guys. Can anyone answer the following with citing the references? 1) Relationship between adsorbent porosity and adsorption/desorption rate? 2)Relationship between porosity and adsorbent...

31 October 2020 6,323 5 View

How to calculate bulk density, porosity, and void ratio of soil?

If the particle diameter is 2 mm and the particle density is 2.5 g/cm, what is the bulk density, porosity, and void ratio of this soil? I had known that the formula to calculate them. The...

11 October 2020 3,466 3 View

How to measure the volume of hydrogel?

08 October 2020 2,745 9 View

How can I determine the type of my membrane NF or UF?

20 September 2020 5,531 2 View

What is the best equipment to find the thermal conductivity of a heatsink?

Dear All, I am trying to find the cooling efficiency of my heatsink and I am wondering if there is any equipment to do this thermal test for me. I am looking to find equipment to find a point to...

30 August 2020 3,961 8 View

How to determine the mass of an ore material to be added into a laboratory SAG mill?

Please, I have a mill of volume ~10,000cm3 and I want to calculate the mass of rock sample (-10+5mm) that will occupy 25% of the mill volume. I understand that 25% will be equivalent to 2500cm3....

16 August 2020 5,664 3 View