Which Tablet/ notebook has 2 powerfull USB ports?

I need a tablet/portable device that can run labVIEW on it, it needs to have 2 USB powerful ports to power sensors and have enough storage(64Gb/128 Gb) and a powerful processor. Which tablet...

09 October 2017 2,478 0 View

No title

09 October 2017 6,600 5 View

Help with matlab code?

I want to have a heat map with different colors. With extreme color red and lowest blue. Something like in the picture, but with red the maximum and blue minum and other colors in between. How can...

09 October 2017 2,436 2 View

I am looking for Antenna theory Analysis and Design 4th Edition?

Is there someone who has this book: Antenna theory Analysis and Design 4th Edition?

06 July 2017 2,623 0 View

Mathematical help?

I have an array of number. I am looking at the difference between each of the following number of the array. So each time a difference is found between numbers of the array that is larger than 0....

05 June 2017 5,419 2 View

I am looking for an paper with investigation of coherence times for urban and suburban areas NLOS fixed wireles TX and RX but dynamic channel ?

Is there someone who has a research paper? Preferably for frequencies around 700 Mhz, 868 Mhz, 900 Mhz

05 June 2017 1,850 4 View

Is there someone who can tell me if the RMS doppler spread formula of my is correct?

I calculated the RMS Doppler spread using Matlab but would like to know if my mathematical way of defining it is correct. In some literature, they use an integral notation, but I calculated it...

05 June 2017 9,259 0 View

How to apply autocorrelation on measured data in matlab?

I have the measured data from a vector network analyzer. I need to do a autocorrelation in time on this data. After that I need to look at the time span over which the signal level is -3dB from...

04 May 2017 9,143 5 View

Is there someone who has sone books or material about sampling a signal in time domain and frequency domain?

I am looking for sampeling theory

04 May 2017 5,006 0 View

Matlab help?

Iam tying to run the following code on the data, but it gives me an error: Error using .* Matrix dimensions must agree.. The error occurs here: xw=x .* xh'; % Window the signal. Can someone help...

04 May 2017 7,789 4 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

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 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

Open Source IoT Simulators supported by Machine Learning?

Dear Research Gaters, Let me first add context to the question. I am looking to simulate the waste management system and resources of a city. The hardware devices I need to simulate include,...

21 February 2021 2,333 4 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