Is this legal in total differential?

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How do I solve this numerical on Vacancy concentration?

Question: Calculate the equilibrium value of vacancies concentration for copper per atom of the order of 10^4 at 1000K the energy for vacancy formation is 0.9eV/atom. Answer:N=N_0+exp(−Q/RT)is...

07 August 2019 6,056 5 View

What is the physical meaning of "critical crack length"?

There are two equations that are primarily used in context of the facture stress one with sqrt(2 *gamma*E/a0) and the other with sqrt(2*gamma*E/pi*C).I do not understand which one to use while...

07 August 2019 2,701 4 View

How are drawing common tangents to get diffusion different for concave and convex phase fields?

Whenever there is a concept of diffusion involved and we need to decipher what is going to happen we tend to draw common tangent s in the phase field diagrams and decide which direction the...

06 July 2019 9,735 1 View

What is the plastic deformation process and the related phenomena involved in FCC single crystal?

Please answer this in detail as much as possible.

06 July 2019 7,584 1 View

What is the significance of h^2+k^2+l^2?

What is the significance of h^2+k^2+l^2 values in BCC and FCC?I have seen how h,k,l values are the ones which are relatable to the structure factor theorem and why all odd or all even and sum...

06 July 2019 4,768 4 View

Why are they applying the shell equation to find the desired objectives in a Stagnant Air film diffusion Problem?

I do not understand why the shell equation is being applied and most importantly there is nothing spherical here so why should the shell equation even be pondered about?Please refer to the...

06 July 2019 3,663 4 View

How are the two Stacking Faults namely intrinsic(formed by vacancy agglomeration) and extrinsic(formed by interstitial agglomeration) different?

Stacking Faults and its association with partial dislocations seem to bother me day in and day out.With regard to this I do not understand how Partial dislocations lead to stacking faults and not...

06 July 2019 7,502 1 View

Does Ferrite and Austenite exist without any carbon soluble in it?

It seems that we have a perennial notion of relation Austentite and Ferrite in Fe-C phase diagram however we refer to them as gamma or alpha iron.Is having a minimal carbon content necessary for...

06 July 2019 1,451 8 View

Why does carbon atoms occupy the octahedral void?

Why does carbon atoms occupy the octahedral void in BCC atoms even though they are smaller than the tetrahedral voids? If the reason is because of less distortion I would be very pleased to see...

06 July 2019 1,268 1 View

How do I solve such questions on paramagnetism and ferromagnetism?

The property of whether a substance is paramagnetic or antiferromagnetic is something that is bothering me.I know that for sure what the things are in terms of magnetic domains and stuff.However...

06 July 2019 2,280 1 View

Which Scopus Journal provides the most affordable fees?

"PUBLISHING IN A SCOPUS JOURNAL" Researchers are now at a cross road. The critical need to publish in a Scopus or ISI, etc journal is ever vital. Journal Publication fees must be submitted....

10 August 2024 8,621 1 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

Seeking Advice on Viability and Execution of Undergraduate Thesis Topic?

Hello everyone, I am currently developing a thesis proposal and would appreciate your input on its viability and how to effectively carry it out. My proposed topic is: "Does the perceived threat...

10 August 2024 8,992 0 View

I have get this error when i calculated the geometrical optimization for prco3, it takes 12 hours until gives this message in the outputfile?

Fatal error in MPI_Allreduce: Other MPI error, error stack: MPI_Allreduce(1628)......: MPI_Allreduce(sbuf=000002459254A180, rbuf=000002459F86A140, count=4851, MPI_DOUBLE_COMPLEX, MPI_SUM,...

09 August 2024 7,615 1 View

Who will be moral responsible for the death of thousands of people in the event of an earthquake?

Who will bear moral responsibility for the deaths of thousands of people in the event of an earthquake? Weeks and months remain before the onset of strong earthquakes that bring death to...

08 August 2024 6,134 12 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

Hello Everyone ! I'm looking for a good journal to publish my manuscript with low publication cost?

I am Looking for a Science Journal with good impact factor and low publication cost to publish a review paper. Your suggestions would be appreciated.

06 August 2024 6,796 3 View

What is the prepared reference material that can be used in inductively coupled plasma optical emission spectrometry (ICP-OES) to measure REE and U ?

What is the prepared reference material that can be used in the ICPE-9820 Shimadzu Japan instrument, which employs inductively coupled plasma optical emission spectrometry (ICP-OES) to measure...

06 August 2024 1,896 1 View

Are there any instruments for studying time similar to the way it is in space?

There are a huge number of methods for studying objects in space, according to the senses (and not only). Mechanical, thermal, optical, acoustic, electrical, magnetic, based on particle beams,...

06 August 2024 7,102 0 View

How to assess the osmotic power of a substance?

Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...

06 August 2024 977 1 View

Omar Gonzalez-Ortega

No, they are typos

Rajorshi Koyal

Thanks Omar Gonzalez-Ortega

Stefano Quattrini

Every state variable has a total (exact) differential. For non differential quantities, although small, you have to use the 1-form of Cartan.

Tang Suye

Yes, you are right. (∂G/ ∂T)p.. denotes that (∂G/ ∂T) is at constant p, dp=0, they should be typos.

Gustavo Bolaños

They should be typos.