How can I correctly model an impact on the soil in Abaqus?

I am modeling dynamic compaction in Abaqus. I model the impact of a tamper on the soil and the job completes successfully, but the result has some problems. The impact happens and after that, the...

11 June 2020 9,960 1 View

whats the best ultrasound power ,amplifier and frequencies for the best yield of edible oil extraction?

02 March 2020 1,491 1 View

Two dimentional liquid chromatography?

Can 2D-LC system be built by connecting two orthogonal columns with the use of two pumps and a switching valve? I want to build a tandem system myself. Is this practical?

17 February 2020 5,017 3 View

Is there anyone who silmulates the mechanical properties of graphene membrane?

Hello everyone, I want to simulate the mechanical response of graphene membrane on cavities after applying force but I am quite new working with comsol, Is there anyone that I cantact by email or...

31 January 2020 940 1 View

Why the Ansys Marco v.12 not running in the Ansys new versions?

I have Ansys Marco, this macro is not running in the Ansys new versions.

31 January 2020 9,094 2 View

What is the best way to find the location of an object in an image?

I need an accurate algorithm to find the location of objects (such as plate location in a car image, eyes location in a face image, etc.). Thanks in advance for your help.

27 August 2019 6,339 11 View

Hi, would you mind please guide me where or which site can I find the (m/z) data base to describe the UHPLC/QTOF-MS analysis results?

Hi, would you mind please guide me where or which site can I find the (m/z) data base to describe the UHPLC/QTOF-MS analysis results?

26 June 2019 4,037 3 View

Are there hartman personality test work ?

the test run on different situations on people?

04 February 2019 5,737 4 View

Is it possible to clone four different genes in a single expression vector (like pGEMT, pET) and to screen them successfully?

The first transgene will be easily screened by using marker gene analysis, but in case of second, 3rd and 4th genes it may give false results (positive results), then what alternative methods...

17 October 2018 3,934 3 View

Which ceramic material has excellent wear resistance properties when used as a coating (thermal sprayed) on a metallic substrate?

Ceramic coating is provided on the metal to improve its wear resistance. There are many ceramic materials are available and seems not easy to choose best one which can fulfill our requirement....

17 October 2018 4,666 10 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