I'm asking for a laboratory where I could measure entalpy, entropy,thermal diffusion thermal conductivity frozen point at severals tempratures ?

More Sahi Wassila's questions See All

Maximal depth with Ion implantation?

I would like to know if it is possible to have a uniform doping over 2 µm for n-type crystalline silicon, using the ion implantation technique, in order to create a BSF layer in a solar cell. I...

19 October 2021 2,848 5 View

Importance of the tunnel effect on the solar cells performance?

Does the tunnel effect play a major role in the performance of solar cells? Especially when the device is heavily doped so the depletion layer can be thin enough for tunneling. Are there any...

10 December 2020 5,735 10 View

Experimentally, what is the maximum doping density that can be achieved in crystalline silicon?

When we use Cz-crystalline silicon wafers, what is the maximal doping density that can be processed using for example ionic diffusion ?

12 July 2020 3,386 8 View

Is it possible to do heat initiated free radical polymerization of N N dimethylacrylamide?

I want to make transparent polymer sample of N N dimethylacrylamide. But I don't know if it can be polymerized using AIBN or some other initiator under heat.

08 November 2017 8,598 4 View

Wrapper feature selection and overfitting issue?

Salem, In a wrapper feature selection algorithm, we use the accuracy rate to evaluate the candidate feature subsets during the search process. How can we show that a wrapper feature selection...

27 September 2016 3,327 4 View

What realistic steps can I take with just EAM potential file to have it modify with ZBL?

I am wanting to modify a EAM potential for Al with the ZBL potential for Al. I see people in literature they say for radiation damage they modify EAM with ZBL for short range distances. What...

15 May 2016 9,765 2 View

Do DMSO or Ethanol affects essential fatty acids ??

If we dissolve essential fatty acids in DMSO or ethanol solvents, do they affect these fatty acids anyhow ??

23 February 2016 936 2 View

Why only XRD peaks at higher angle are blue shifted upon doping?

I have doped Y2O3 with La3+ ions and XRD shows slight blue shifting of higher angle peaks but major peak at lower angle remains at same position.

02 December 2015 496 9 View

How can discrete and binary metaheuristics be evaluated using mathematical functions?

Hello, My question is how can I evaluate a discrete metaheuristic using a benchmack mathematical functions. in other words, the concerned metaheuristic handel a discrete solutions xi with D...

08 November 2015 661 3 View

How can I choose the validating set for doing evaluation in wrapper feature selection method?

Hi, For doing the evaluation of different feature subsets in the wrapper feature selection methods we need to use the train and the validation sets. and after selecting the best feature subset we...

03 September 2015 7,577 7 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

Why is the molecule's orientation with an electric field affect polarizability?

Why is the molecule's orientation with an electric field affect polarizability? Electrons are diffuse enough to be independent with respect to orientation and effect of electric field on...

03 August 2024 7,843 1 View

How to build my own lab made four point probe set up?

Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...

30 July 2024 906 2 View

How to calculate conductivity using Electrochemical Impedance Spectroscopy's Nyquist plot?

Hello everyone, I am new to this characterization but watching videos on youtube I have already plotted a Nyquist plot (Z' and -Z'') and already fitted models on my material using Zsim. But now I...

29 July 2024 1,376 0 View

Expansion thermal of muscle ?

What is the thermal expansion coefficient of human muscle?

27 July 2024 7,190 0 View

Provided that the shale conductivity termed here x increases with temperature, how could we compute it at reservoir temperature ?

one could use Waxman and Thomas (1974) work?

22 July 2024 6,637 0 View

How can I extract glycosides from mangrove leaf samples without an incubator that can reach temperatures above 60°C?

I want to extract glycosides from my mangrove leaf samples, but my laboratory lacks an incubator capable of reaching temperatures above 60°C. The paper I am following specifies a minimum...

13 July 2024 3,686 0 View

How to introduce on fluent the optical loss of the wall due to the reflection of the plate towards the environment ?

"When solar irradiation reaches a surface, some of it is absorbed while the rest is reflected. Part of the light absorbed by the surface transforms into heat and increases the module's...

13 July 2024 8,621 5 View

Why am I seeing only one initial maximum in torque-time curves for the fusion of PVC in a Brabender?

We're studying the stability and fusion behavior of multiple PVC compounds in a Brabender. After a few trials, we set the temperature at 195 °C and the rotor speed at 70 rpm. Samples differ in...

12 July 2024 2,768 1 View

How to convert magnetic conductivity from SI to lattice units?

I'm simulating a magnetohydrodynamic problem of blood flow using lattice Boltzmann method in lattice units and I need to convert the magnetic conductivity to lattice units. The physical value is...

07 July 2024 5,243 0 View

James Garry

Sahi,

Many laboratories can measure the thermal conductivity of a material at different temperatures. I know several - and can measure this property with my own apparatus (double-sided guarded hot plate: -100 deg C to 90 degC)

What is the material, and what are the temperatures of interest?

Sahi Wassila

thanks

i m seraching for a colorimeter differential scanning

-5c° to 150c°

Google shows a great many laboratories offering differential scanning calorimetry.

https://www.medallionlabs.com/tests/differential-scanning-calorimetry-dsc/

https://segallab.technion.ac.il/segal-lab-facilities/dsc-differential-scanning-calorimeter/

etc.