Why in semiconductor crystals smaller lattice constant translates into larger band-gaps?

Consider the following semiconductors with the zinc blende (tetrahedral) crystal structure: BN, InP, InSb, with band-gaps of 6.10, 1.27, and 0.18 eV, respectively; and lattice constants of 0.362,...

01 February 2015 6,502 9 View

Why are rain-bearing monsoon clouds in India different shades of black and grey?

Some monsoon clouds in India - Cirrus, Cumulus, etc. - are white because of Mie scattering. But the rain-bearing monsoon clouds - Cumulonimbus, Nimbostratus - are dark (different shades of black...

01 February 2015 2,339 3 View

Is ionic bond in a crystal stronger or weaker than the covalent bond?

Consider GaAs (covalent crystal) and NaCl (ionic crystal); both have nearly same lattice constant. The Ga-As interatomic distance is shorter than the Na-Cl interatomic distance; but GaAs has a...

01 February 2015 3,489 10 View

What is the primary reason for diamond having so many unique properties?

Diamond has not just one but many truly unique properties, which include the following: (1) It is the most covalent of all solids; (2) It is the only semiconductor with nearly equal electron and...

01 February 2015 1,082 3 View

Will there be more light in a room with four 35 W CFL on, if we open four windows placed centrally in the walls on a sunlit day?

31 December 2014 5,699 4 View

Why in all the living beings of nature, the flow of food material is unidirectional? Is not an alternative flow possible?

Beginning with the jelly fish, which is among the earliest living organisms, up to the human species, the flow of food material inside the organism is unidirectional. Why has evolution not seen an...

31 December 2014 1,580 1 View

Is there any source of energy which is clean?

The renewable sources of energy, e.g. solar electric, solar thermal, wind, etc., are renewable, but, all of these degrade the environment, and their ecological effects are negative and still to be...

11 December 2014 301 1 View

Should a conference insist on a short manuscript from each presenter for its proceedings?

Some authors of conference (or symposium) papers decline to submit a manuscript for various reasons. These include lack of time on their part, lack of visibility of conference proceedings...

11 December 2014 1,179 1 View

What could be the most effective medicine against self-plagiarism and what should be the threshold for defining self-plagiarism?

Most journals, if not all, profess by the Bible to be against self-plagiarism; yet this curse continues unabated and many authors (in particular, many who have already hundreds of publications)...

10 November 2014 607 1 View

What should be the h-index and impact factor of the n-th author of a paper with more than 3 authors if n is larger than 3?

Papers are mushrooming with ever increasing number of authors. It is not known what scientific meaning the position of the n-th author has, if any? Often authors are added to compensate for their...

10 November 2014 7,078 1 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

Can Virtual Servers (remote dekstop manager) run heavy ANSYS Fluent CFD simulation ?

I have a virtual machine. My host Pc specs are not that good thats why i went for virtual servers. so basically my host pc has 8gb of ram with nvidia quadro k2200 4Gb DDR5 GPU ,processor intel...

01 March 2021 8,415 1 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

How to calculate battery consumption for IoT device?

Hi, everyone I'm working on a privacy-preserving algorithm that will apply to IoT devices. So, I need to measure the power consumption by implementing this algorithm. Any suggestion, advice,...

25 February 2021 8,749 6 View

What are the saturated salt solutions that can give specific relative humidity of 35%, 65% and 95% for conditioning wood specimens?

Due to the unavailability of climate rooms, I want to carry out an experiment that require the use of certain saturated salt solutions especially those that can condition the wood specimen to 35%,...

25 February 2021 8,139 1 View

How vulnerable is water and wastewater infrastructure to cyber terrorism in an age of IoT?

Im looking for any papers, reports,articles, links etc on information on How vulnerable is water and wastewater infrastructure to cyber terrorism in an age of IoT.

24 February 2021 2,750 4 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

Open Source IoT Simulators supported by Machine Learning?

Dear Research Gaters, Let me first add context to the question. I am looking to simulate the waste management system and resources of a city. The hardware devices I need to simulate include,...

21 February 2021 2,333 4 View