How to solve error "Cannot find position restraint file restraint.gro (option -r)." on GROMACS?

Hi, I am about to do energy minimization but the above error occurred, I checked my .mdp file and .top file but could not find the problem. TOP file ; Include forcefield parameters #include...

01 February 2021 780 3 View

How can I use AMOS to conduct Exploratory Structural Equation modelling?

Almost all studies have used Mplus for Exploratory structural equation modelling ESEM. I wonder if it is possible to use AMOS for this purpose. Can I get a reference which discusses the specifics...

12 May 2020 5,269 8 View

What are the best environmentally benign/green solvents to dissolve PMMA?

I would like to use environmentally benign solvents for dissolution of PMMA to make thin films and coatings.

10 November 2019 8,847 4 View

Is it possible to measure TMOKE for thin films in transmission configuration?

The transverse magneto-optical Kerr effect (TMOKE) can be measured for thin film with the usual configuration of reflection. I heard that it is possible to measure TMOKE in transmission...

01 April 2019 9,170 2 View

Any Suggestions for coding with Mathematica to Solve nonlinear Hamiltonian System using Runge Kutta method?

Either Mathematica code or other programming tool

11 March 2019 2,765 3 View

How to find the phase difference between two signals by using python?

I'm a new user to python. For part of my project, I have 2 signals which more or less are in the form of "sine wave" with the same frequency and amplitude. I plot each one of them separately and...

17 April 2018 6,085 2 View

What is the type of effective mean pressure?

The mean effective pressure is a quantity relating to the operation of a reciprocating engine and is a valuable measure of an engine's capacity to do work that is independent of engine displacement.

22 April 2017 7,380 1 View

How do I calculate the compression ratio?

Compression ration is a fundamental specification for many common combustion engines.

22 April 2017 7,011 5 View

Is it possible to use Exporter dynamics database to determine innovation activities by countries?

03 February 2017 4,441 1 View

How to accept Linear Regression model that violate the regression assumptions?

Hello.. Dear researcher, I am doing study on traffic engineering based on the empirical data. After completing my analysis,developing the mathematical model and finishing my model validation,then...

25 September 2016 7,639 9 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

Where can I find atmospheric measurement profiles (temperature, density, etc.) between 300-800 km altitude?

I am investigating thermospheric mass density profiles between 300-800 km altitude. I would like to compare the variability with other parameters, including temperature, electron content,...

01 March 2021 5,902 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

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

Does anyone know of a predictable relationship beween surface gravity and atmospheric composition?

The attached file demonstrates that there is a predictable relationship between the structural density of a terrestrial body and its none-rotating surface gravity. Using Newton's gravity law of...

26 February 2021 2,317 3 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