Is it possible to remove a preprint posted by a journal which is already rejected?

As we know many journals are posting preprints (DOI) in advance before the peer-review process. However, there is no guarantee that the preprints get published. The journal's reviewers undergo the...

01 March 2021 5,778 2 View

What is the best software for storm water flood inundation mapping?

I'm modeling a storm event hydrologic responses of urban watershed using fully distributed hydrological model? In this modeling I want to generate the spatially distributed runoff values in the...

20 January 2021 5,343 7 View

What are the maximum number of items should be in a iif graph plot?

I found it when I put all the items at a time to differentiate the lines

03 December 2020 7,476 3 View

Can someone help me with MagNA Pure 96 extraction protocols and its price?

I want to have this machine in my lab for nucleic acid extraction. Can someone help me with its price?

12 October 2020 9,541 2 View

What is the difference between research gap and problem statement in academic studies?

Often postgraduate students are confused about the difference between the research gap and problem statement. Please discuss.

05 August 2020 4,235 2 View

Problem to couple two simulation tools?

how to couple a multiagent simulation BRAHMS to Energyplus energy software to simulate a co-simulation analysis of building energy by considering occupant behavior?

14 April 2020 6,721 4 View

How energy transfer from C-dots influence of band gap of p-type semiconductor?

how energy transfer from carbon dots to p-type semiconductor decreases band gap?

20 June 2019 5,946 1 View

What is the greatest challenge to population controlefforts?

The global population is exploding at an alarming rate, particularly in Sub-Sahara Region of Africa and South-east Asia regions. The different factors (to be proved or refuted by research) are the...

21 April 2019 5,062 3 View

I want to conduct research on ambient air pollution and its health impact in cities.what are the available technologies and methods to measure?

I want to conduct research on ambient air pollution and its health impact in cities.what are the available technologies and methods to measure?

30 March 2019 3,145 9 View

On what issues the performance of Neural Network mainly depends?

On what issues the performance of Neural Network mainly depends?

20 January 2019 4,434 8 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

No title

25 February 2021 5,713 1 View

How can we determine the band gap of a composite material that is made up of a composition of direct and indirect band gap semiconductor materials?

I have a direct band gap material and an indirect band gap material. If I made a composite of both through physical mixing. Then how can I determine the band gap of such a material as the Tauc...

17 February 2021 8,104 4 View

ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

Xrd result of ZnO thin film shown better crystallinity at low temperature and the crystallinity decreases as the temperature increased. why?

I have synthesized ZnO thin films at four different substrate temperature say, 300, 350, 400 and 450C. and the samples were annealed at 450C for half an hour. the xrd result shown better...

04 February 2021 7,641 4 View

I am desigining UWB antenna with ecllipse shaped patch on HFSS.Why gain is coming negative ?

I am attaching my design and result of Gains.S11 parameter is less than -10dB from 3.1 to 9.8 Ghz.Z11 magnitude also lies between 40 -60 ohm for this range .Still gain is negative. Pls help

29 January 2021 4,334 3 View

Where to add metamaterial unit cells in microstrip patch antenna to enhance the antenna parameters?

In order to enhance the antenna parameters, meta-material unit cells are added but where to load them is more advantageous either at ground plane or at the patch side, also is it necessary to add...

24 January 2021 2,999 4 View

What is the basis set to optimize ZnO using GaussView for DFT calculation study?

Greetings, I have a bit of problem in setup the basis set of my DFT study for ZnO.. As you can see in the image attached below, I use B3LYP 6-31G (d,p) for geometrical opt. of ZnO.. But sadly, I...

13 January 2021 7,508 4 View

Why the bandgap of CH3NH3PbCl3 films are different for spin-coating method and electrospinning method?

The observed bandgaps are 3.8 eV and 3.4 eV for spin-coated and electrospun films, respectively. What are the possible reasons?

08 January 2021 5,646 6 View

How to calculate the band potential of a semiconductor material using energy band gap?

I am looking for methods to calculate the band potential of ZnFe2O4 and Fe2O3.

05 January 2021 6,416 2 View