Is it possible to insert two matrices in a larger matrix ?

Hello researchers, I got a question with Matlab. Target is to achieve a variable 'data' which stores the values of year, month, day for which an event occurs. The variable changes with year, it...

11 December 2018 5,733 3 View

Do peaks in FTIR for composite material remain same?

I prepared a composite material. SEM images & EDX showed that there is a large change in the surface properties and also the chemical composition. Whereas by FTIR analysis, the peaks remained...

04 May 2018 8,757 8 View

FTIR for composite material?

Hello researchers, can you spare a little time in pointing out the characteristic molecular bond indicated by FTIR study. Did anyone get a peak around 607 m-1 wavenumber? I am confused regarding...

03 April 2018 957 3 View

XRD analysis for iron and titanium oxide?

What are the elements associated with peaks at 25.5o , 37o , 70o , 74o ? Please mention with references.

03 April 2018 860 2 View

Root cause of unemployment, terrorism, food-water insecurity: Over-population?

Hello researchers, I ask a question to all. What can be the root cause of all the problems that we have in our society nowadays? We talk of education, is it so? We talk of social stability by...

01 February 2018 7,778 9 View

Does distilled water absorb light?

In my recent project study, I am getting absorbance value for distilled water > 0 (mostly around 0.05). Distilled water free from all sort of ions or entities should show zero absorbance...

31 December 2017 5,624 13 View

Duplicate vs triplicate studies: does it affect the quality of the research work?

I searched on the internet and found many good journals which had their articles mentioning about triplicate studies. At the same time, I also found a handsome number of researches mentioning...

31 December 2017 6,967 2 View

Which countries in the world give PhDs (Doctorate) within 3 years officially?

In Europe, Asia including India?

31 December 2017 4,819 3 View

WaterGems software download for Windows 10 64-bit?

Anyone please give me a link to download WATERGEMS software trial version (atleast 1 month). Thanks.

11 December 2017 4,286 1 View

Review paper criteria?

Can a review paper be written on a particular topic considering less than 30 papers? What can be the minimum number of journal papers to be cited at the reference of the review paper?

11 December 2017 6,400 8 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Experimental Design: How deal with pseudreplicates with immunological and clinical-chemical paramaeters?

Hello everybody, I am investigating the influence of a toxinon various clinical-chemical and haematological parameters in fish. I have three treatments (control, low dose, high dose) in my...

24 February 2021 1,243 1 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

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22 February 2021 9,932 11 View

What are difference between laser diodes, simple light emitting diodes and power light emitting diodes when operated in the visible spectrum ?

I want to illuminate a scene (small space) using LED to capture photographs or videos of some tiny objects inside the space. But am not sure if I should use a Laser LED, or simple LED or power...

22 February 2021 4,240 4 View

Can anyone help or comment on solubilising chlorobutanol in aqueous injections in minimum time possible?

Please suggest solubilisation of chlorobutanol in injections. Tried pH and high temperature. But the issue is of assay drop. If anyone can suggest any solution. Its a commonly used excipient for...

21 February 2021 7,397 1 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View