What is (response surface graph)?

For optimization of reaction conditions, most of the time we have several factors to take care of, like pH, temp, initial conc., ionic strength... etc. How we can express in a professional way our...

27 May 2020 3,150 3 View

For a hydrothermal autoclave, can we use a glass container instead of the teflon?

To increase the temperature of the autoclave higher than 160 or 200 C, we need thermally stable materials as the reaction container. So what kind of materials can be used??

17 May 2020 8,963 7 View

Can I use matlab deep learning toolbox for regression problems?

Hi everybody I want to use MATLAB deep learning toolbox to relate the activity (pIC50) of molecules to their molecular descriptors. Can I use convolutional neural network with a regression layer...

03 February 2020 1,874 6 View

How to determine the degree of similarity between two signals?

I'v been doing an investigation about detection of a specific signal and I need to determine that how a received signal resembles the reference signal. A primary approach to this problem is done...

06 November 2017 6,369 7 View

How we can apply FRP in Concrete beam with Abaqus?

Hello all, I want to modelling a Concrete Beam with ABAQUS, My intention is that first beam cracked and then the FRP, apply to beam and analysis continue. can you help me?

11 January 2017 8,962 6 View

How can we determine representative volume element length (Lrve) for concrete?

for periodic materials, determining Lrve is simple but for a non-homogeneous material such as concrete, it is not that simple. any advice such as methods, references, etc. would be appreciated.

04 November 2016 6,044 3 View

How can i do a meta-analysis of a subject in sport and physical education?

I want to learn about this type of research.

11 January 2014 9,954 3 View

The internal energy change for isothermal processes is zero. But for the vaporization of liquid (which is an isothermal process) it is not zero.

The internal energy change for isothermal processes is known to be equal to zero. But in the case of liquid vaporization (e.g. liquid water to steam) (boiling at constant temperature), the...

01 January 1970 7,917 4 View

Why some Cr(III) complexes have labile reactions ??

01 January 1970 7,787 7 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 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

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What is the difference between genotype and haplotype data in the ped format?

Hi everybody In the ped format for genotype, alleles of any SNP are represented by two columns (one for each allele, separated by a space). Is a column sufficient for the haplotype to...

27 February 2021 1,965 1 View

Is there an open source free software for text mining and sentiment analysis?

I am looking for a free software for text mining and sentiment analysis for my research on customer review mining (it involves calculating polarity of attributes,opinion oriented information...

25 February 2021 1,920 6 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View