Which environmental problems arise from landfill mining ?

Landfill mining techniques arise as one of the available alternatives to mitigate negative environmental impacts from municipal solid waste landfills. High recycling potential generation is one of...

28 March 2020 1,782 10 View

Which freeware model model do you recommend for a detail analysis of soil contamination by pesticides ???

Pesticide application has currently been identified as one of the most relevant soil contamination sources. However, some more effort should be done to understand the fate and transport of...

10 November 2017 8,957 3 View

Environmental Impact Assessment models

Do you know any EIA freeware/software to be used for the assessment of hydraulic & environmental engineering projects???

08 September 2014 5,648 2 View

Easy to use freeware about noise modeling

Do you know any easy to use freeware about noise modeling??

08 September 2014 7,510 0 View

Easy to use freeware about air quality

Do you know any easy to use freeware about air quality modeling??

08 September 2014 6,053 0 View

Which one to use, MODFLOW or FEFLOW?

08 September 2014 2,560 14 View

E-learning, online courses and webinars in groundwater and environmental problems?

08 September 2014 5,503 4 View

Can anyone help with alternatives to RBCA risk assessment model?

Do you know any software which could be an alternative to the RBCA software toolkit for chemical releases to perform risk assessment evaluations?

27 July 2014 8,767 3 View

C++ compiler for windows

I am looking for a good&easy to use C++ compiler for windows... Any suggestions? Thanks

06 July 2014 10,009 2 View

Can anyone help with alternatives to RBCA risk assessment model?

Do you know any software which could be an alternative to the RBCA software toolkit for chemical releases to perform risk assessment evaluations?

06 July 2014 2,825 4 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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 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

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

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

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View