How can I fix the floating node error in pspice?

I have a very large circuit and when I try to run a transient analysis of my circuit, there are so many floating node errors, this is the picture of a part of my circuit...

31 December 2020 6,053 5 View

Available datasets for occupational skin diseases?

Hi, is there any dataset about occupational skin diseases (especially skin cancers) that contains skin lesions images (simple or dermoscopic or histologic) ,integrated with clinical data and...

10 October 2020 3,301 4 View

The characteristic length of a vertical sinusoidal wall with natural convection?

What is the characteristic length of a vertical sinusoidal wall with natural convection to calculate Rayleigh number? (x represents characteristic length in the attached formula)

21 September 2020 8,736 5 View

Is it logical to divide the output into a constant and then design sliding mode controller based on mapped output?

23 March 2020 8,000 3 View

How can I start the simulation of esd effects on satellite solar panels? I'm looking for a start point for esd simulations by softwares likeCST,Hfss?

In all the papers the esd test model consists of a vaccum chamber in which samples exist. There is a plasma simulator or electron gun that simulates the space condition. these induce the esd on...

20 March 2020 5,938 3 View

Numerical Modelling of Natural Convection using Comsol: 2-Step solution or 1-step?

I am modelling air natural convection in a vertical channel with open boundary end by means of Comsol Multiphyscis. I am interested in the stationary solution. There are two different approaches...

03 March 2020 5,686 7 View

Which CFD software to use for a rough simulation?

Hi I'm a beginner in CFD simulations. I have a complex geometry and I want to approximately visualize the airflow passing through this geometry. I don't need the simulation to be fully accurate,...

01 March 2020 3,337 20 View

Writing specific contact surface behaviour using Userinter.F in ANSYS?

Hello, Is there anybody who has experience developing any user subroutine using Userinter.F for contact simulations in ANSYS? Any advise and example would be appreciated highly. thanks a lot

21 February 2020 6,495 1 View

What is the simplest way to determine the stress/strain fields based on a sandbox experiment?

Currently I am working on a sandbox experiment to study the nature of salt domes. Now I want to determine the stress/strain fields based on camera images, is there any way other than PIV method to...

06 October 2019 9,837 2 View

How to download MATLAB version 6?

How I can download this version of MATLAB? (6) or How I can change the version of MATLAB to another version?

02 April 2019 1,432 8 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View