How to read an HPLC report?

I have four HPLC graphs (for methyl ethyl ketone (MEK) and sulfuric acid and little organic monomers) and I want to analyze them. Is there anyone who can help me with this?

23 December 2020 6,180 3 View

The characteristic length of a vertical sinusoidal wall with natural convection?

What is the characteristic length of a vertical sinusoidal wall with natural convection to calculate Rayleigh number? (x represents characteristic length in the attached formula)

21 September 2020 8,736 5 View

What drag model for simulating a fluidized bed with geldart D particles do you propose?

The minimum fluidization velocity is 1.17 m/s and the average diameter of the particles is 2.6 mm with a sphericity factor of 0.9 I am using an Eulerian-Lagrangian approach and these are the...

02 August 2020 646 2 View

Is it possible to model the non-Newtonian Lubrication in comsol?

I want to know that is it possible to model the Bingham lubrication in Hydrodynamic module or thin fluid film module? or mabey I should use another module? #nonnewtonian lubrication #Comsol...

26 June 2020 1,715 5 View

How can i simulate the non-Newtonian lubricant for Hydrodynamic bearing in Comsol multiphysics?

In Comsol multiphysics, the bearing can simulate by Hydrodynamic bearing or thin fluid film module. But when I want to add a constitutive equation for viscosity the shear rate can not appear as a...

15 June 2020 4,948 3 View

How the transport experts define a transportation model?

a transport model (e.g logit model or ...) is based on statistical data and field works or merely based on mathematical theories or both of them? If I want to define a model ( e.g. a new model in...

19 May 2020 1,768 3 View

Numerical Modelling of Natural Convection using Comsol: 2-Step solution or 1-step?

I am modelling air natural convection in a vertical channel with open boundary end by means of Comsol Multiphyscis. I am interested in the stationary solution. There are two different approaches...

03 March 2020 5,686 7 View

What are proper machine learning algorithms to extract relationship among variables?

I'm dealing with a supervised problem which includes three features. My main purpose is to find the relationship among these features which is complicated. I'm looking for a straight relationship,...

10 October 2019 3,337 9 View

Is it possible to illustrate crowdsourcing as a graph? and is it possible to monitor activities of members of this graph?

Recently, I'm starting a research project about "crowdsourcing" and I've two questions about the nature of crowdsourcing. 1. Is it possible to illustrate crowdsourcing as a graph? I mean is it...

23 September 2019 5,446 3 View

For a Multiple Effect Desalination system (MED), how is it possible to evaluate the real capital cost as an industrial case??

for a Multiple Effect Desalination system (MED), how is it possible to evaluate the real capital cost as an industrial case?

12 June 2019 2,456 1 View

Hello fellow researcher .. What is the meaning of your name?

I would like to create a small guide containing the meanings of the names .. Thanks to everyone who cooperates with me in achieving it.

03 March 2021 5,266 4 View

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

How can I publish a manuscript in free or low cost journal with good H-Index?

Dear all I am going to publish my manuscript which is from my thesis in a good H-Index journal but I found them very expensive(I don't have financial support) based on the exchange currency of my...

28 February 2021 7,800 6 View

An article on the Iranian state's civil liability in the COVID-19 matter needs supervision; Is anyone interested in collaborating?

Hello. An article on the Iranian state's civil liability in the COVID-19 issue has been written in collaboration with a friend and a comparative look at law and biology. The article is ready to be...

15 February 2021 2,906 2 View

Do have new reseach that you wish to publish a chapter on for free: Areas now Blockchain and cooperative computing?

03 February 2021 4,497 6 View

Which ethical metrics is expected from an academic who is the owner or the creator of the measuring instrument?

Which ethical metrics is expected from an academic who is the owner or the creator of the instrument? The measurement tool will be applied to adults as an online form and a snowball sample will...

01 February 2021 9,188 3 View

How do i calculate the mean of patient age represented by year + months?

Dear all , I'm doing a pediatric study and the majority of sample's ages are repressented by year + months such as 6Y+4M. How can enter the data and calculate the mean in SPSS? Thank you for...

01 February 2021 570 10 View

What is the magnetic anisotropy constant for Permalloy (NiFe-80-20)? Can anyone suggest some papers?

Need to know the equation of anisotropy energy for permalloy and also the constants. Any reference paper will be helpful. Thanks for your time and cooperation.

26 January 2021 7,842 3 View

Can anybody help me to understand "double-directional spatial propagation"?

I have read few research paper but could not understand the double-directional spatial propagation that is used in 5G. Can any body help me to understand double-directional spatial propagation...

02 November 2020 595 2 View

Is Psychotherapy effective for children than adult? Why? Is there any good article to respond that?

I study and research about anxiety disorders in children in Iran and I sometimes face questions like this and unfortunately I could not find article or book to answer that.

30 October 2020 6,822 7 View