What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

How weather based insurance is more effective than yield based?

In Nepal, crop insurance and refunding policy is is area-yield /revenue-based and cost of production based. Farmers are partially following crop insurance in comparison to livestock and other life...

07 December 2020 2,127 1 View

How can we estimate the maximum power that an optical waveguide can handle?

Sorry for the naivety of my question. I am looking forward to estimating the maximum power capacity of an optical waveguide, typically, Silicon (Si) or Silicon Nitride (SiN) waveguide. Is there...

19 October 2020 4,915 5 View

I am new to ArcGIS ssoftware. Is it possible to extrapolate contours outside of given points?

I am trying to make Bearing Capacity Mapping of certain district and points are limited. But i want to cover whole district. If anyone have any idea please explain step by step.

29 August 2020 4,693 4 View

How to solve the following error in MmPbSaStat.py?

Traceback (most recent call last): File "MmPbSaStat.py", line 303, in main() File "MmPbSaStat.py", line 62, in main cTmp.CalcEnergy(args,frame_wise,0) File "MmPbSaStat.py", line 81,...

26 April 2020 3,066 3 View

What is the best point/text to start to understand the optical frequency combs and supercontinuum generation from basics?

Hello there, I have been working on several silicon photonics devices and currently, I am trying to study optical frequency combs and supercontinuum generation. But, I couldn't know where do I...

15 January 2020 7,676 3 View

Which are the substitutes of magnesium nitrate? in explosives and fertilizer industry?

which are the substitutes of magnesium nitrate? in explosives and fertilizer industry?

12 May 2019 2,946 3 View

What is phase controlled directional coupler and why is it used?

I was going through some basics of directional couplers and came across this article. I found this approach pretty complicated and was curious why was this method adapted. If a single DC can...

12 February 2019 8,291 2 View

What are minimum aspects of the publication ethics?

I am dealing about ethic in various disciplines.

04 September 2018 6,414 13 View

Could anyone suggest how to measure extractable organic matter in total lipid extracts?

I am trying to quantify extractable organic matter in river sediments..

21 August 2018 906 2 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View