Does anyone have recommendations to increase the adhesion of thermally evaporated Al deposited onto PMMA?

I am depositing Al onto PMMA via thermal evaporation. Currently I have already tried to improve the adhesion of the films by two different strategies: 1. Evaporating SiO prior to the Al...

27 May 2020 5,380 6 View

Can I use magnets to press a dielectric substrate againts its holder in a sputtering machine?

I have to coat a plastic substrate. I usually hold my substrates using little metallic clamps, but this one would need to be coated in the outer area of the whole substrate (can only hold it from...

23 April 2020 2,930 3 View

Which questionnnaire between Global physical activity questionnaire (QPAQ) and the International Physical Activity (IPAQ) is appropriated ?

Hello to the scientific community, Between the global physical activity questionnaire (GPAQ) of the world health organization and the international physical activity questionnaire (IPAQ) which is...

30 March 2020 869 19 View

What is the best method for lipids extraction of leaves?

Hello! I need to extract lipids from three plants. What is the best method { If you can help me with a protocol, thank you regards

27 April 2018 5,853 4 View

Can someone please help me to understand how to correct a feature in Kiessig fringes fitting of XRR data simulation of a bilayered thin film?

I am simulating XRR data of sputtered Cr thin films deposited on glass substrates. I have failed simulating the XRR data of one sample; the film is Cr 20 nm thick and in the simulation model I am...

01 December 2016 9,065 4 View

What is your teaching techniques on developing 21st century skills to the learners (in STEM curriculum particularly)?

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12 April 2016 9,596 4 View

Does anyone know about characterization techniques used to study chemical bonding at the interface between polymers and sputtered films?

Does anyone know about characterization techniques used to study chemical bonding at the interface between polymers and sputtered films?

02 September 2014 5,965 8 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

How can the use of Jolly Phonics improves the quality of reading, speaking and writing in rural disadvantaged communities in Papua New Guinea?

Jolly Phonics reading program is an effective way to teach early reading to young learners. How can lectures at the university prepare early childhood student teachers to teach Jolly Phonics to...

03 March 2021 3,731 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View