I need MPPT ALGORITHME using MATLAB/SIMULINK ?

MPPT algorithme

09 April 2020 8,685 9 View

Difference between Manifest variables, items and questionnaire questions in Structural Euqation Modeling (SEM)?

Please, I need to know the difference between manifest variables, items and questionnaire questions in SEM. I thought that manifest variables are another way to design items. But in some journal...

13 October 2019 7,453 2 View

Are cancer cells able to metastasize without degrading extracellular matrix?

Hello all, It is clear that cancer cells need to migrate within host tissue during metastasis, but they face the extracellular matrix as a physical barrier. Is it necessary for them to degrade...

24 October 2017 8,168 7 View

How to make a time series imputation benchmark ?

Hello ! In a work, I have to benchmark different algorithms to fill in missing values in time series. I insist on the fact that this is imputation and not forecasting. In my case, I have access...

24 February 2021 7,470 7 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View

How to calculate the sample size in an interobserver variability study?

Hi I am conducting an interobserver variability study where we have 12 raters who are going to rate samples of lesions. They will rate up to 10 variables per sample. Although the size of the...

12 February 2021 7,276 3 View

How to match the XRD of a compound for which there is no JCPDS file ? Is there any other characterization to claim the synthesis of desired compound?

I have synthesized LiMgF3 using the starting precursors LiF and MgF2 via solid state diffusion method. Now I am looking for some characterization to claim the desired product, as there is no...

09 February 2021 921 3 View

What are the things you should keep in mind while designing a controller for a quadrotor and want to implement it on hardware (via arducopter) ?

I am designing a flight controller for a quadrotor. At first I am designing a nested/cascaded controller consisting of only proportional controllers Kp . Now, if i tune the rate controller for 10...

03 February 2021 5,001 3 View

How to discretize a continuous time state-space model in MATLAB correctly?

I am trying to discretize a continuous time state space model using the following code s=tf('s'); G=1/(Iyy*(s^2)) Gs=ss(G) Gd=c2d(Gs,0.01,'zoh'); Now, when i use this discretized model 'Discrete...

30 January 2021 8,665 10 View

SAR X-Band constellation from Capella Space?

Dear all, I'd like to open here a sort of forum for understanding how the geodesists community is moving in view of the X-band SAR satellite constellation. The new constellation will offer new...

24 January 2021 6,248 0 View

Why it is required to optimize a unit cell generated from cif lattice parameters and atomic coordinates during ab initio solid state calculations?

A cif file represents a unit cell with minimum energy. My question is, in the start of any ab initio calculation for unit cell generated from the cif file, why we are advised to optimize cell...

19 January 2021 9,883 3 View

Is there a solution to this conundrum on freefall into a black hole?

18 January 2021 1,582 3 View

What are some recent publications showing the predictor power of resting state brain acitivity for tasks done outside the MRI scanner?

Looking for recent articles (2018-2020) that showed resting state brain activity can predict cognitive task performance (e.g., attentional and executive functioning tasks) done in the lab AFTER...

09 January 2021 2,310 2 View