How genetic algorithm can be used to find optimal weights and biases of neural network?

Assume a 3-2-1 (3 neurons in the input layer, 2 neurons in the hidden layer and 1 neuron in the output layer) neural network. How genetic algorithm can be used to find optimal weights and biases...

24 May 2020 1,778 2 View

Can I use glass cuvettes in FTNIR spectroscopy?

I'm using a PE FTNIR spectroscope and working in a wave length 759nm to 2500nm. I'm broke with quartz cuvette. Can I use a glass container for scanning my material?

14 October 2019 1,715 1 View

How can we reduce the effect of environmental noise floor on the RF signal?

I am transmitting my RF signal through atmosphere at a range of 10 kms. But it seems range is limited by environmental noise floor. Is there any way through signal processing that can mitigate the...

14 February 2019 5,285 3 View

Which optical element can withstand more optical power - a mirror or a lens?

Suppose a highly intense laser beam of 10 kW is incident on a mirror and a lens. Which of the two can withstand the power without getting damaged.

17 November 2018 6,505 17 View

Is it possible to generate and detect a signal with milliHertz or microHertz frequency?

An optical gyro rotating at very less velocity may generate an output signal in milliHertz range. Is it possible to detect such signals?

08 September 2018 8,761 3 View

How is the lasing wavelength of a laser determined?

The emission wavelength of active part of laser cavity depends upon the bandgap of material, while the allowed oscillation frequencies of passive part depends upon cavity length. How these 2...

02 September 2018 726 4 View

Is output current of photodiode a DC or an AC signal?

If an optical signal of 1550 nm wavelength is incident on a pin photodiode, what will be the nature of its output photocurrent ?

18 August 2018 878 23 View

What is the most suitable transceiver module for line of sight wireless transmission in 10 kms range?

I want a wireless transceiver module for remote sensing application with range about 10km. Xbee would not be sufficient. Can anyone suggest an alternative?

10 April 2018 7,831 9 View

Which techniques are currently being used to bond low surface energy plastics ?

Which techniques are currently being used to bond low surface energy plastics ? How much bond strength can be obtained at most on plastics like LDPE, HDPE, PP? Any rubber based Adhesive being...

16 February 2018 2,813 3 View

Resultant spot size of a combined beam?

If two or more beams are overlapped or combined at a point in space, what will be the resultant spot size at the point of combination?

16 August 2017 9,035 2 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

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 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

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 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

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View