What are differences among COLTRIMS and Velocity Map Imaging (VMI) and TOFMS?

Hi there, I hope everything goes well. I want to be familiar with molecular dynamics and Coulomb Explosion Imaging (CEI). Could you please explain what COLTRIMS, VMI and TOFMS do? and in which...

10 November 2018 9,813 1 View

How to determine energy levels of a molecule by energy levels of their constitent atoms?

Hi there Could you please explain how to determine the energy levels of a molecule by knowing their constituent atoms energy levels? what is the difference between energy levels of atoms and...

09 October 2018 7,994 5 View

How to measure longitudinal and transverse modes in lasers?

Hi there, Do you know how to measure longitudinal and transverse modes in lasers? I need to know the cutting edge and experimental techniques related to this subject. Bests,

01 February 2018 8,632 21 View

How we can compute refractive index of rectangle plates with interferometer, diffraction and polarization?

hi there, how we can compute refractive index of rectangle plates with interferometer, diffraction and polarization methods? and what is related setup? thanks.

31 December 2017 1,907 7 View

Ionization of atoms in gas state

Hi there, I hope every thing goes well. Today I face with a question that I want share with you. What is the exact difference between Electron impact ionization , Highly charged ion ionization,...

01 January 1970 9,720 3 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View

Glass fiber content in a gypsum board ?

Any idea on how to get the volumic ratio of glass fiber in a gypsum board ? Thank you for your help !

01 March 2021 2,501 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

How to use measure capacitance change in COMSOL time dependent study ?

I want to measure change of capacitance due to relative displacement between two parallel plates in COMSOL. Distance between two plates changes with time. So I'm using a time dependent study but...

26 February 2021 8,567 3 View