How can I magnify an image without changing the dimension in matlab?

Hi everyone. For the last part of my project I have to see how does my program respond to a magnified image. The magnification has to be a part of the code . I've tried imresize() , it will be...

10 February 2021 8,279 10 View

How can I remove bubble in WPU film?

I am trying to prepare water-based polyurethane films. When dried air bubbles were formed and destroys the film homogeneity, then I can't use this for mechanical test because of defects. Is there...

26 January 2021 701 1 View

What is the best way to simulate the fractional controllers?

What software do you prefer?

29 December 2020 889 3 View

How can I omit some special part of an image in matlab?

Hi I'm trying to edit my input image which is a simple Persian letter. I want to omit the dots of the letter. I can do it with Photoshop of course, but it would be more technical if I could do it...

14 December 2020 201 5 View

How can we choose the right method for Gaussian calculations?

I'm not working on biomolecules, I work on Organic, Organometallic, and sometimes inorganic structures. Do you know a simple way to apply the right calculation method? Is there any article or...

10 December 2020 3,396 5 View

How can I estimate meniscus force on a needle in FLUENT??

I want to simulate a needle movement in water and I want to know how can I estimate meniscus force on the needle in FLUENT.

06 December 2020 9,766 1 View

How can I design Vanderlugt filter in Matlab?

Hi everyone I need some help in designing Vanderlugt filter in Matlab. I want to design this filter and later use it in a 4f optical correlator. As I tested my designed filter and I'm not sure...

19 September 2020 8,662 7 View

Any recommendation for a good Machine learning course (with available materials for instructors)?

Hello everyone, I am looking for a good recommendation for a Machine learning course (with available materials). Which one do you suggest? Something that would be up to date with available...

15 September 2020 1,674 17 View

How can I calculate leakage flow rate of gas by using gas concentration at two or more positions in air?

Suppose there is a leak in gas pipeline. I just have a sensor to measure concentration of gas in air. Can I calculate leakage flow rate of gas by using gas concentration at two or more positions?

04 August 2020 5,354 3 View

Raman peak shift or uncertainty?

Good day, I have a Raman spectra for 4 samples including Graphene oxide (GO) and its nanocomposites. According to the attached figure can sb tell me whether the different peak positions of the...

15 June 2020 6,467 8 View

How we can isolated MnO2 from solid organic product ?

The compound 1,4-dihydro pyridine oxidized in the presence of potassium permanganate and microwave. After oxidation, the organic product and manganese dioxide are formed, and the two substances...

09 January 2021 5,358 4 View

Please share some research papers on the synthesis of Mn3O4 nanoparticles via Hydrothermal method by using Manganese(II) nitrate hydrate?

05 January 2021 9,040 4 View

Approval for MnFe2O4 for industrial wastewater treatment?

I am using MnFe2O4 NPs as adsorbent for CrVI for wastewater treatment following literatures as it is one of the best, but I have a challenge of releasing Mn+2 in the environment. A lot of...

19 November 2020 3,404 4 View

Do we measure hardness of drinking water contents of cations and anions for health purposes?

Millions of peoples are now suffering from kidney diseases and other diseases ,and with epidemic spread ,need more concern about levels of metals and anions in drinking water is related to the...

26 September 2020 5,032 10 View

Anyby have experience in making cheap TiO2 photocatalytic filter to remove ozone gas in air upto 100ppm from 100m3 closed space ?

I'm making an ozone-based Air purifier and need to scrub out ozone gas after the use. I read about TiO2 based photocatalytic filters but they are not available. Please suggest efficient ways to...

24 September 2020 2,383 5 View

Is Molybdenum (Mo) in drinking water dangerous?

Ten days ago I asked the question "Is Manganese (Mn) in drinking water dangerous?" and I was very happy with the responses I recieved. Today I pretty much ask the same thing about Mo. Why Mn and...

11 June 2020 9,212 1 View

How can I reveal high strength spring steel prior austenite grain boundaries?

I have been trying to reveal prior austenite grain boundaries by etching without success. the composition (wt %) is 0.59 carbon, 0.8 Manganese, 1.20 Chromium 0.90 Silicon.

30 March 2020 1,721 3 View

Adhesion of metal oxide on stain steel support?

i use anodic electrodeposition of Manganese oxide on the on the stain steel collector current; using sulfate manganese as an electrolyte. the problem is after a while the film of metal oxide...

08 March 2020 3,722 4 View

Why the large grain contains small grain inside ?

We currently recieved a sample from industry. It is high manganese steel (Hadfield steel) with a composition of Fe-12Mn-1.1C, after austenization treatment. We find that the grain size of this...

15 January 2020 6,624 1 View

Why dose not Manganese dioxide(from battery ) (MnO 2) dissolve with nitric acid 60%?

I have extracted Manganese dioxide from zinc-carbon battery in order to prepare Manganese fertilizer . but it never dissolve , Why ??

11 December 2019 6,999 6 View