PCR inhibitor: Isopropyl acetate (2.5%)?

If extracted viral RNA contains 2.5% isopropyl acetate, would it be acting as PCR inhibitor?

20 October 2020 3,058 3 View

Does all mineral oil contains asphaltenes?

I had a mineral oil of 460cSt (containing sulphur and phosphorus), after addition of nanparticles (carbon nano tubes and graphene) the viscosity decreased significantly. literatures says that the...

16 August 2018 6,476 1 View

Which is more preferable mixed lubrication regime or boundary lubrication regime?

04 July 2016 1,862 6 View

How does Young's modulus,shear modulus,Poisson ratio of a nano wire/tube/particle influence the coefficient of friction?

Mechanical properties influencing coefficnet of friction.

21 June 2016 1,344 2 View

I run opensim- matlab for arm, but error in matlab "block error" ,how i correct it?

I use S function in matlab ,it get opensim file but error in initial callback, how i check in model properties initial callback?

03 February 2016 4,737 1 View

Can we get lower coefficient of friction with larger scar diameter in a Four Ball Test rig?

Two tests were carried out. One with a vegetable oil and the other with mineral oil. The mineral oil viscosity was almost twice than the vegetable oil. It was observed that the Coefficient of...

10 January 2016 8,250 6 View

I performed an experiment and the following were negative outputs in the response table. Why?

An L9 orthogonal DOE was performed using Minitab. The S/N in case of frictional force is negative.The response of the frictional force and rpm were negative. But in case of other output...

10 July 2015 6,731 5 View

While analyzing a pin-on-disc experiment using Taguchi analysis which type of problem has to be considered- static or dynamic?

21 March 2015 3,441 2 View

In pin on disk how are you calculating the total wear track distance?

Formula.

12 May 2014 4,071 10 View

When we add solid particles to a liquid what can we call them: emulsions or dispersions?

Addition of additives in lubricant is to be called what?

06 May 2014 6,107 9 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

How to estimate 2SLS with different instruments for different endogenous variables?

To be specific, I want to conduct an IV regression in stata with the following three equations. EQ1: Y1 ~Y2 Y3 X EQ2: Y2 ~ Z1 EQ3: Y3 ~ Z2 Both Y2 and Y3 are endogenous. However, Z1 and Z2 are...

23 February 2021 6,266 3 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

Which is the best software or programming language (user friendly) for analysing data?

I have a basic knowledge on Python, R and MATLAB in analysing data. Among those, which is the best and user friendly? Which one should I learn deeply to analyse data?N:B: I want to learn data...

20 February 2021 3,950 15 View

What is/are the best ML classifier(s) for Sentinel2 images?

Hi I am trying to segment a sentinel2 image. At this stage, I want to run a binary classifier that assigns each pixel to either farm or non-farm pixel. For this purpose, I have 4 10m bands...

15 February 2021 3,596 9 View

What will happen when we assume an upper bound of OFV lower than the global minimum OFV ?

if we assume 20 is the upper bound of an objective function (OF) based on permutation a square matrix (nxn) , The minimum value of the OF=22, then we run a random operator to compute the OF by...

14 February 2021 6,056 5 View