What are the inconveniences of a linear quadratic regulator (LQR) used in seismic vibration control ?

Dear colleagues, greeting I'm working on a new type of controller that can substitute the classical controllers such as LQR (linear quadratic regulator). Hence, I want to know more about the...

02 March 2018 3,264 7 View

Dose the lost of exclusivitiy of information affected the motivation of the teachers ?

Greeting, I'm asking this general question for teachers and professors in all fields. With the advances of technologies and communication technics the exclusivity of the scientific information...

01 February 2018 968 12 View

What is the fault type of Christchurch, New-Zeland (2011) earthquake ?

Greeting to all researchers; I'm using a set of a near-fault, far-fault earthquakes in a study, and I want to use the Christchurch earthquake record. However, I'm confused about the fault nature...

11 December 2017 6,408 5 View

How to design a base isolator for a share frame structure ?

Dear researchers; I'm working on modelling a share frame structure in MATLAB the only parameters I have are: mass, stiffness and damping. and I want to design a base isolator for this kind of...

31 December 2016 8,816 4 View

Is there any benchmark model for 3D building under seismic excitation ?

Dear researchers; I'm trying to apply some semi-active control on a 3D building excited with uni-directional or bi-directional excitations, with and without eccentricity (rotational degree of...

05 June 2016 6,227 2 View

How to verify the results in a numerical study ?

03 April 2016 2,095 4 View

Why some researchers try to monopolise the science ?

Dear researchers; I've seen a lot of research scholar complaining about getting their work rejected by some reviewers, just because those researchers don't want some else to publish in their...

31 December 2015 9,909 4 View

What is the difference between corrected and uncorrected earthquake ?

Dear researchers; What is the difference between corrected and uncorrected earthquakes ? Warm regards.

31 December 2015 5,686 0 View

How to write a 3D building motion equation ? and how to solve it in state space ?

11 December 2015 655 9 View

How do I apply harmonic loading to a 2 storey building frame in ANSYS or ABAQUS?

dear researchers I want to apply harmonic sine load to 2 story building frame. Building is going to model in Ansys/Abaqus and this for time history analysis of the structure. also suggest which...

11 December 2015 2,802 5 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View