How can I design a series of experiments using Design-Expert software for 3 parameters where 0<A<1 & 0<B<5 & A+B<6 and A+B+C=25?

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How to prepare buffer solution with ph of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 using NaH2PO4 and Na2HPO4?

Dear researchers How to prepare buffer solution with pH of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 using NaH2PO4 and Na2HPO4? Should we use NaOH and HCl?

02 May 2024 3,329 1 View

How to draw a Pareto Chart based on response surface methodology (RSM) information in Design of experiments software?

Dear researchers, We analyze data by RSM in experimental design software. But, how to draw a Pareto Chart based on response surface methodology (RSM) information?

20 April 2024 9,457 3 View

How can we export 3D graphs from Design Expert software to word file without showing its explanation?

Hello esteemed researchers, I'm encountering an issue with exporting graphs from Design Expert software into a Word document; the graph explanations are included alongside the images. Could...

02 April 2024 6,437 0 View

In a sulfated compound such as calcium sulfate, how is sulfate converted to thiosulfate?

This is to produce ammonium thiosulfate from phosphogypsum.

01 December 2023 1,158 0 View

Why do not we prepare PVDF/DMc dope solutions in 90 C for flat sheet membrane fabrication as PVDF has a good thermal resistance?

Dear researchers, Why do scientists use temperatures between 60 to 70 C to dissolve PVDF in DMF or DMAc for membrane fabrication? Why do not we use a temperature of 90 C to dissolve it in a...

08 October 2023 6,526 0 View

Is it possible to use ice in the second wall of the condenser? What is your idea?

Dear researchers, Is it possible to use ice in the second wall of the condenser? What is your idea?

24 September 2023 7,520 0 View

What is the vacuum pump model in Memsys V-MEMD membrane distillation package?

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03 September 2023 6,774 1 View

Can I use a refrigerator compressor instead of a vacuum pump in a membrane distillation setup?

03 September 2023 2,195 1 View

How can I design a series of experiments using Design-Expert software?

I wanna design some experiments with these conditions: 1. Parameter A: It is 40, 50, 60, 70. 2. Parameter B: It is 3, 10, 50, 200.

02 September 2023 5,597 0 View

How to determine the purity of solvents (like DMAc, DMF) and nanoparticles (like SiO2) and PVDF polymer, PEG and PVP?

Dear researchers, I bought some membrane production materials like PVDF, DMF, DMAc, PEG200, PVP, SiO2, etc. How can I prove that these materials are pure and not from industrial grades or...

31 August 2023 5,976 3 View

Research Methodology - Impact of Corporate Reputation on Stakeholders Behaviors?

Please can anyone support with the survey questions based on RQ measures and propose how to do it in FMCG industry and include as well the role of brand equity Thanks

06 August 2024 947 0 View

Anyone having idea about VN primer for miRNA primer design ?

How to design VN primer to attach with universal reverse primer

05 August 2024 2,113 3 View

Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,604 7 View

How to Input and Analyze Results for an Asymmetrical Factorial Design in STATISTICA 13.3?

In STATISTICA 13.3, I used the Experimental Design Builder under the Design of Experiments tab to generate a design matrix for an asymmetrical factorial design (1443) with 12 experiments. However,...

29 July 2024 4,154 2 View

Pragmatic inquiry research design?

Employing a pragmatic inquiry research design, looking for published research using this method, employing qualitative research data collection methods of semi-structured interview and focus...

28 July 2024 539 2 View

How do we pick data for determination of Validation Acceptance Criteria?

Hello, colleagues! There is commenting open for new upcoming edition of USP 1033. Validation target acceptance criteria is now different from what it used to be and it doesn't include Cpm....

23 July 2024 7,292 3 View

Can a shoot-through event of a tri-state digital buffer cause momentary Hi-Z state?

// interested in the difference between floating events and short circuits.

22 July 2024 6,565 0 View

How to extract binding energy from pv.maegz file without using Schrodinger?

I have conducted virtual screening using Schrödinger on a database of 17,000 molecules. Unfortunately, I cannot use the system with the Schrödinger license at the moment. I am trying to find a way...

18 July 2024 2,881 4 View

I want to conduct a research using quasi experimental design to test two treatment and one control what type of statistical tools do l use ?

What type of experimental design do l use and what statistical tools do l use for the hypothesis. What is the position of control group in the analysis?. Thanks

18 July 2024 3,581 3 View

How to model a non-minimum phase system?

In deriving a model of an LTI dynamic system, the model of the system does have no RHP zeros, however, when inspecting the step response, it reveals a non-minimum phase system represented by a...

14 July 2024 6,354 2 View

قشصشى نا

I want to read the research because I am a master student and the teacher asked me to look for research, translate it and read it only

Foroogh Khodadadi

Dear قشصشى نا ,

Should I send you a research item?

Sorry, I could not understand what I can do to help you. Could you please explain more?

I want you to let me read your research

What type of research?

I will send you what you want. Just tell me the subject of the research item as I work on many types of projects.

Thank you so much.

I forgot the name of the search but thanks