How to determine the Nonprobability sample size?

If the sampling frame is not defined (non-probability sampling). How can I determine the sample size so that the sample reflects the real population? -- Example, I'm conducting a survey of...

31 December 2019 1,591 3 View

Is there any documentation for IfcOpenShell on Python?

IfcOpenshell is a good interface to read BIM Ifc files from different software, it is written in C++ as well as Python, however I haven't found enough documentation on IfcOpenShell for Python, Is...

09 October 2017 1,838 4 View

What does it mean when a paper status is changed from "Under Review" to "Under Editor's Evaluation" at Elsevier Editorial System?

04 May 2017 4,104 67 View

How can I model actual occupant behaviors in DesignBuilder?

03 April 2017 9,984 1 View

How can I use python in CFD modeling?

I'm very enthusiastic to use programming languages in Architecture simulation modeling. I have already learned C# and python but I don't know where to go from here? Besides that, I wouldn't like...

09 October 2014 5,437 10 View

What is the best way to calculate airflow rate in a building interior whether using CFD or any other measurement tools?

What is the best way to calculate airflow rate in a building interior whether using CFD or any other measurement tools?

05 June 2014 3,144 3 View

What is the optimal way to simulate the airflow rate or air exchange rate in a building using CFD?

For simulating thermal comfort, the air exchange rate has to be calculated. I have used a very long way to calculate it by evaluating it for every window and the summing the total value. Is there...

05 June 2014 7,160 3 View

Why am I getting an error message in Rhino Python?

I'm working on a tool using RhinoPython with Numpy and Scipy modules. I 've downloaded and installed Ironpython but when I import scipy it gives me this error messsage "Message: 'module' object...

05 June 2014 6,235 2 View

Python GPGPU module ?

Any suggestions about the best Python GPGPU module for big data computing ?

01 January 1970 1,608 3 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

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why the results when using wall thickness and when using shell conduction are different in ansys fluent?

Actually, I am running cfd simulation for a heat exchanger which has two fluids one hot and other one is cold fluid. there is a solid domain between them, which I removed and instead I have used...

01 March 2021 9,537 2 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View