Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View

How surface tension of solvents affect crystallization of nanoparticles in a sol-gel method?

In the synthesis of metal oxide nanoparticles by sol-gel method, how surface tension of solvents affect crystal growth?

06 January 2021 3,687 3 View

For RNA seq study and data analysis, How many tests (e.g. duplicate or triplicate) should be considered for each sample?

As we are doing RNA seq for some cell lines before and after treatment, how many tests should we do for each sample to validate data statistically?

04 January 2021 6,436 2 View

I need to wash carboxy methyl chitosan with 70%ethanol until neutral pH obtained, how can I do this task without consuming to much ethanol?

in the last step of synthesizing carboxy methyl chitosan from chitosan we need to wash it with 70%ethanol until neutral pH obtained, to achieve this goal we need to consume lots of ethanol, I am...

21 September 2020 2,060 2 View

I need to get some references on the topic of thermal conductivity of building materials. Who can help me ??

scientific researches Master Theses PhD Any previous studies benefit me in my research ... Thank you

31 May 2020 1,031 14 View

Whats the coordinate of atoms in a crystal with cubic structure that atomic positions for them are same, like 4a(0,0,0)?

Whats the coordinate of atoms in a crystal with cubic structure that atomic positions for them are same, like 4a(0,0,0)?

24 February 2020 6,351 3 View

MiRNeasy Serum/Plasma kit abnormally low OD?

We have purified RNA samples using miRNeasy Serum/ Plasma kit using RNase free solutions but still, we have got low OD of purified samples ( 98 and 56 microgram/mL). which actions should be measured?

21 September 2017 1,067 2 View

I need a single-phase voltage-dependent variable load in MATLA/Simulink. How can I do that?

I need a variable load as I can control its power or its impedance via changing its voltage. Not a variable current controlled loads. I would be grateful if somebody could help me.

14 July 2017 9,840 3 View

Is it possible to compute ion conductivity using existing Gromacs tools? How might I calculate ionic conductance through bilayer in gromacs?

ionic current, gromacs

26 May 2015 2,572 1 View

How can I achieve the second-order optical gain in quantum dots?

15 May 2015 7,785 3 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 the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View