Who is familiar with JASCO V-770 UV-Vis-NIR spectrophotometer?

More Saman Q. Mawlud's questions See All

How do you calculate electrochemical cell potential for pure gold?

The reduction of Au+ particles to Au0 NPs can be discussed by the reduction potential (E0) of redox system elements. my question is, how will you calculate the reduction potential for Au+/Au0 and...

02 March 2018 785 0 View

Energy Band Gap Versus Nanoparticle Size?

Is there any relation between NPs size and energy band gap, I mean how the energy band gap vary with the nanoparticle size? please provide your answer with a mathematical relation if there is?

02 March 2018 4,271 26 View

In Michelson Interferometer, why the fringes appear in a circular shape?

in studying the interference of light through the Michelson interferometer the fringes pattern will appear in circular shape with the dark fringes from the center, my question is why the fringes...

02 March 2018 9,605 4 View

Can glass conduct electricity when it is cold or it is only conduct electricity when it is hot?

For most of the materials in order to conduct electricity, a material must have some charged particles that can move through the material when an external voltage is applied on it. so can glass...

02 March 2018 243 4 View

Is preheating mechanism for fine powder material composition necessary or not?

I am preparing a glass sample from a composition which is in a fine powder form,so, is there any condition for preheating process before melting the composition or in which situation preheating is...

08 September 2015 9,521 0 View

What kind of units will be used for calculating Judd-Ofelt intensity parameter?

when you calculate transition probability, oscillation strength or any other parameter through Judd-Ofelt theory, what kind of physical unit will be used, for example Planck constant, electric...

01 January 1970 4,039 4 View

How can you choose the melting point for a composition?

If you have a composition consists of 5 or more different material and different mole fraction ratio, depend of what rule you will choose a suitable melting temperature in order not to evaporate...

01 January 1970 4,068 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Glass fiber content in a gypsum board ?

Any idea on how to get the volumic ratio of glass fiber in a gypsum board ? Thank you for your help !

01 March 2021 2,501 3 View

Benefits of the 24 welled plate?

We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...

28 February 2021 1,149 1 View

Concrete compressive strength databases?

I am looking for datasets similar to this one: http://archive.ics.uci.edu/ml/datasets/Concrete+Compressive+Strength I am looking for concretes with different types of aggregates (Recycled,...

27 February 2021 6,801 3 View

What information can be had from raman at higher wavenumber?

i have recorded raman spectra of strontium oxide thin film. the spectra were recorded in the range 400 to 4000 cm-1. i have reference to peaks upto 1000cm-1. but i couldn't find literature for...

26 February 2021 2,499 1 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

How to properly calculate the fluid solid heat transfer between polypropylene matrix and glass fiber in a porous medium?

I'm building a cfx model of thermoplastic pultrusion process on ansys and i have a doubt on how is the proper way to set this parameter in a porous medium

24 February 2021 1,915 1 View

How to properly calculate Interfacial area density in a porous domain?which are possible value for glass fiber?

I'm doing a cfx simulation of a multiphase flow in pultrusion and i set the Interfacial Area density in the heat exchange of a porous medium in this way IAD=Total fiber lateral surface of fiber...

23 February 2021 6,043 1 View

What does it require to be ready for e-Commerce in developing countries?

Most developing countries are not ready for e-Commerce? What dimensions and indicators are there to measure e-commerce readiness of a nation? Please share framework or model and evaluation...

22 February 2021 8,132 6 View