Cross section of Uranium-238 at different fast energies of neutron?

Dear All, The neutron cross section of element generally falls with the increase in neutron energy. But in U-238 the fission cross section at Neutron energy of 1MeV is 0.3 barns whereas it...

02 March 2017 1,600 4 View

Ideality factor for diodes?

Is there any mathematical formula there for the ideality factor of the diodes? I will be very much thankful for the above. Please send the mathematical expression for it.

08 September 2016 6,873 5 View

The pulse shaping circuit of the radiation detector?

In the radiation detector the pulse shaping circuit consists of CR-RC circuit and amplifier.The function of pulse shaping amplifier is to improve Signal to Noise ratio.It also act as a filter to...

08 September 2016 8,346 4 View

How to reduce shot noise in the semiconductor radiation detector?

Generally there are three types of noise is present in the semiconductor radiation detector.These are Thermal Noise,Shot noise and Flicker Noise.The thermal noise is removed by operating the...

08 September 2016 9,187 2 View

Coating of Enriched Boon-10 on Si Surface other than CVD technique?

Dear All, Is there any technique other than the CVD to coat the Enriched Boron-10 on the Si surface? I will be very much thankful for the reply. Thanks & Regards Manoj

08 September 2016 8,542 0 View

In radiation detector Generally the HV Bias to the detector is given through the charge sensitive Preamplifier?

08 September 2016 4,031 4 View

Neutron irradiation effect on semiconductor PIN Diode?

I have performed the neutron irradiation on the PIN Diode. I have found that the forward bias cut-in volatge has been shifted. Why these shift been observed in the neutron irradiated PIN...

06 July 2016 7,854 3 View

Why electric field is maximum at the center of the depletion region in the PN junction?

In the depletion region only uncovered ions are exiting then why we have the maximum electric field at the center of the junction?

06 July 2016 7,199 6 View

How does a guard ring in the PIN Diodes reduces the surface leakage current?

06 July 2016 6,512 2 View

Common mode signal calaculation?

Dear All, For the common mode signal the input voltage is calculated as (V1+V2)/2. Why we are calculating the common mode input signal as (V1+V2)/2 whereas in differential mode the input signal is...

04 May 2016 1,958 1 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 are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 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