Matlab Problem! Please Help?

More Parham Akhlaghi's questions See All

What is the reason of stacking DNA in agarose gel well?

we electrophoresis PCR product on 0.7% agarose gel at 120V for 1 hour, our target size is 5000 bp but our DNA stack at wells and do not com in to gelldo you have any suggestion for this?

02 July 2024 5,235 0 View

Hello, I wanted to know if it is a necessity to perform MTT test in three time points to evaluate the cytotoxicity of a metal alloy?

I am working on a magnesium based alloy, and i wanted to evaluate the cytotoxicity of my alloy with MTT assay. I want to know the reason why most of the researchers perform the MTT assay in three...

28 June 2024 2,570 1 View

How to model a groove weld location in Abaqus in a spiral pattern from the bottom to the top of the steel conical roof?

Hello, I have modeled a steel conical roof in Abaqus. Now I want to model the location of a groove weld in Abaqus in a spiral pattern from the bottom to the top of the roof. How should I model...

04 June 2024 9,833 1 View

How can I assign a 15-degree angle to each coil of a spring in Abaqus?

I just created a Solid using Solid > > Revolution. But I want each ring in my part to have an angle of 15 degrees with the horizon. How can I do this? Just note that I don't mean to rotate this...

20 May 2024 8,394 1 View

How can I create helical coils from bottom to top in Abaqus?

03 May 2024 2,335 2 View

How to plus nozzle pipes of the cryogenic Argon tank for testing? and which type of test is recommended and acceptable (test procedure..) ?

Hi everyone We have dismantled heads of a cryogenic Argon tank in order to prepare it for test. What method do you suggest plugging its nozzle pipes? Is there any test procedure and test type(Gas...

25 November 2022 8,672 0 View

How to quantify non-digested oligos in a reaction?

Hi, I have an assay that includes multiple oligos that create a product. At one step I digest all single strand oligos with use of exo-nuclease enzymes. I would like to quantify that all single...

28 April 2022 4,173 1 View

Is it normal for an ointment formulation to become liquid in stability chamber (T=40 C, H=60 %)?

Dear all, My formulation contains almost 30% of vaseline and 8% yellow beeswax + APIs and other ingredients. The thickness of ointment in room temperature is acceptable, while in stability chamber...

04 January 2022 4,238 3 View

How to prevent methyl salicylate from hydrolysis in an ointment formulation?

Dear all, GC analysis revealed the presence of 7.62% methyle salicylate in the final formulation of my ointment, while the initial w/w of MS was 14%. Where it has gone?? If it is because of...

04 January 2022 3,950 7 View

Is the local mean age of air is always equal to the nominal time constant in cases with multiple inlets and outlets?

I try to calculate the mean age of air for a four-sided windcatcher. I know that in the exhaust, the local mean age of air is always (also in the case of a short-circuit flow) equal to the nominal...

02 March 2021 7,422 1 View

What is the difference between mathematical R^4 space and physical 4D unit space?

We assume that the difference is huge and that it is not possible to compare the two spaces. The R^4 mathematical space considers time as an external controller and the space itself is immobile in...

10 August 2024 6,676 14 View

Help on understanding the implementation of Mori Tanaka method on MATLAB?

I am new to Micromechanics and having similar problem with understanding the implementation of the formula's. I would appreciate if anyone can guide me on how to go about getting a scalar value...

30 July 2024 969 0 View

Please, what is the memory consumption of the Matlab function quad tree decomposition procedure [S = qtdecomp(I)] with respect to the input set I?

27 July 2024 5,455 2 View

All math can be explained by iterator of code?

all math can be traversed by code? all math can be translate to code?

26 July 2024 9,530 0 View

Seeking MATLAB Code for Differential Evolution in Multilevel Thresholding Image Segmentation ?

Hello, I am a research scholar currently working on a project involving image segmentation, and I am interested in using differential evolution for this purpose . I would greatly appreciate it if...

25 July 2024 9,926 1 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Swerling Characteristic functions?

Hello!!! I want to implement the Swerling characteristics functions (CF) directly in MATLAB without using its Fourier integral pairs...the Swerling CFs are actually Laplace Transform of the signal...

23 July 2024 4,925 1 View

Radar Detection Probabilities using beta distributed Scattering Cross section?

Currently I need to calculate detection probabilities (PD) from radar cross section (RCS) data. Beta distribution parameters for this RCS data are calculated and will be used in Swerling0...

22 July 2024 866 0 View

How Do Length of Pylon and Rotor Disk Radius Impact Angular Frequency and Torsional Stiffness in Whirl Flutter Analysis for a 2 DOF Propeller System?

Actually, I'm having trouble implementing the plot of the flutter region for the whirl prop system with 2 DOF (Influences of structural damping and propeller—pivot point distance on whirl flutter...

21 July 2024 5,046 2 View

Can anybody provide me the Matlab code to plot the attached picture (Time-Frequency Domain), please?

Time-Frequency Domain

19 July 2024 8,031 2 View

Babak Jamshidi

Dear Parham, I think running the program partly or line by line is helpful. If you run the program step by step, and loop by loop, I expect you to find the error shortly.

Richard Epenoy

Hi, you can directly use the following MATLAB function : fminsearch that uses the Nelder-Mead simplex (direct search) method instead of trying to implement your own version. Best

Zahoor Ahmed

Dear Parham Akhlaghi , i hope you have run the program successfully.