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

Desalting using DSC- 18 SPE columns?

I am looking forward to remove excess of salt form my metal based porphyrin and trying DSC-18 columns for the same, can someone suggest me how how can one decide the polarity of the solvent to...

01 February 2021 9,076 1 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

What is the average velocity formulae of the moving object in 3D using optic flow?

As i searched in optical flow technique (OF) many theories given where sensing the velocity based on images captured during the motion in 3D but i want the average speed formulae . can anyone who...

11 August 2020 3,970 1 View

Current status of Hydroponic Farming in India?

Interested to know about any recent research/white paper on Indian Hydroponic Farming industry.

11 June 2020 727 2 View

How to implement fluid in the contained box in static structural analysis module of ANSYS?

08 May 2020 8,402 1 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

Gear reduction for back-drivability of a motor?

Hi everyone, Does anyone know up to what reduction ratio of gear does a motor remain back-drivable? I want my robot to have safe interactions with the environment and other humans. Can you give a...

26 December 2020 7,142 3 View

Abaqus dynamic simulation - How to avoid parts penetrating to each other?

Hello, This is my first time using Abaqus to conduct a dynamic analysis. I'm trying to simulate drop test of a helicopter skid landing gear but the skid is not colliding to the ground but...

06 October 2020 7,844 4 View

How I can make a fatigue Analysis by Abaqus + FEsafe?

want to make a fatigue simulation on some mechanical parts like Gears, Bearing, and gear housing. please assume 2 gears in contact.when they Are rotating under constant torque and velocity the...

28 September 2020 8,132 3 View

Is it possible to get higher wear rate with lower coefficient of friction?

i working on the enhancement of wear resistance properties of coated stainless steal in the absence and presence of various lubricant. In experiments , in the presence of some lubricants, the...

06 September 2020 8,338 26 View

How I can fix "unconnected regions warning" in Abaqus?

I want to simulate 4 gears in Abaqus and I made the model in Solidworks and in the true locations and positions. it is seems to be tangent in 3 points each 2 gears together. I checked the sketches...

22 April 2020 9,162 3 View

Which oil would be the good choice for lubricating syringe pump?

Hi all, I am using syringe pump from Adelab scientific for blood infusion in the microchip. I have to use syringe pump long time and regularly for my experiment. Recently I have faced a problem...

27 February 2020 2,639 3 View

Nanoparticles in lubricants ?

How is it that we propose nano particles in lubricants, for instance, engine oil. To what extent does the particle size in relation to viscosity affect the metal surfaces. Is it a trade off due...

03 February 2020 7,385 4 View

Case depth and spallation of plasma nitrided steel?

We nitride 15-5PH stainless steel for aircraft landing gear at 405 degrees for 70 hours to get a case depth of 40 microns. We have noticed on testing that we get spallation and wear of the case....

13 January 2020 9,560 1 View

How to analysis gears contact in Asnsys static structural with frictionless contact type?

I model and simulate the contact between two gear. I applied torque on one of the gears and I fix the other using fix displacement in Ansys. Automatic contact detects the contact between gears...

20 December 2019 869 3 View

How to analysis gears contact in Asnsys static structural with frictionless contact type?

I model and simulate the contact between two gear. I applied torque on one of the gears and I fix the other using fix displacement in Ansys. Automatic contact detects the contact between gears...

11 December 2019 7,367 3 View