Matlab Problem! Please Help?

Hi I would really appreciate if someone helps me out with this MATLAB problem. I have uploaded both MATLAB file (which is not working properly) and the question. Thank you very much in advance #MATLAB

03 January 2021 6,512 3 View

How can I get validated from vortex tube using k epsilon-standard?

Hello.I am working on vortex tube. . The information is attached . I have three problems: 1- Temperature contour and is wrong 2- The mass flow rate of cold outlet and hot outlet is false 3-...

14 November 2019 6,126 1 View

Carbon trading and Renewable Energy Certificates (RECs)?

21 May 2019 1,453 2 View

How to design a LQR Controller in simulink?

Hi . Im trying to design a LQR controller for the system below. but I don't know where to put the LQR Gain Block in the system . I know I have to remove the Fuzzy Controller Block and Replace it...

09 September 2018 8,501 8 View

What is your suggestion for evaluating the antibacterial properties of a thin layer nanofiber mat, formed on an aluminium collector?

Hi We've synthesized a thin layer of a nanofiber mat using an electrospinning technique. It is almost impossible to separate the formed layer from the aluminium foil collector. On the other hand,...

03 February 2018 3,233 2 View

Which liquids are normally used for polishing and etching the commercially pure titanium before metallography?

I am preparing sample from commercially pure titanium(CP-Ti) to carry out metallography(O.M. test), which liquid should be used for polishing and which one for etching? My samples are cylindrical...

31 May 2016 4,813 5 View

I need to know where is APS codes in Zigbee standards.

How can I change the APS layer in zigbee stack? I have implemented the base codes for controlling the congestion, I just need to know where is APS codes. Thanks in advance. best regards

06 January 2016 6,411 3 View

How long does it take for Thymidine analogues from being taken up from media to being incorporated into newly synthesized DNA?

Does any one know how long it takes for Thymidine analogues to be uptaken from media until being incorporated into newly synthesized DNA? I work with S. pombe and I would like to do a double pulse...

12 October 2015 8,046 7 View

How can I solve this error: the selected primary variable is not available in the current frame/step?

i am modeling a forming process in which the punch moves at four seperate steps,after the first step, visulization module stop displaying while job correctly continues,this error occurs in...

19 March 2015 5,752 8 View

Can anyone help with the preparation of 0.4 M Acetate Buffer Solution, pH 3?

Dear all, I want to prepare a 0.4 M Acetate Buffer Solution with pH=3.0. I don't know what the appropriate amount of acetic acid and sodium acetate are. How can I adjust the pH? Thank you very...

26 July 2014 4,464 18 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View

How to assign different material properties to each element in Abaqus ?

Hello, I am writing a python script to generate my model and write the input file. The problem is I have 1000 elements in my mesh and I want to assign different material properties to each...

01 March 2021 9,511 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View