how can i have the optical Mode size in COMSOL?

hello, Im using the Electromagnetic Waves Beam Envelops interface in order to simulate two seperate structures: one is a waveguide inside silicon, second is just propagation inside a bulk of...

10 October 2020 6,184 2 View

What would happen if the work function (WF) of the cathode is lower than the acceptor LUMO?

Dear colleagues, Now I am working on BHJ solar cells with inverted structure. I have a case where the cathode's WF (~3.8 eV) is lower than acceptor LUMO (~3.9 eV). What would happen if the...

18 August 2020 9,367 3 View

How to implement lower partial moment of order 1 for given stocks in excel sheet?

I am working on portfolio optimization using lower partial moment of order 1, can someone help me how to implement LPM-1 in excel sheet using "tau" as my threshold value as 0.00% and order (n) as...

05 July 2020 2,510 1 View

How can I adjust the tilt angle and the distance between the absorbed small molecules and the substrate?

I am here using the avogadro program for the construction of molecular structures, before doing DFT calculations. I use H2O and Graphene as small molecules and their substrates.

07 May 2020 4,661 3 View

Which evaluation is more effective and robust for imbalanced class classification?

In imbalanced class classification task, accuracy is not good enough as a main evaluation. There are several alternative evaluation, i.e.: AUC, kappa coefficient and Matthew's correlation...

22 April 2019 794 9 View

Why the active layer film becomes bad when I spin-coat a solution on it?

Dear colleague, I try to make opv device using PTB7:PC70BM active layer. The solvent/additive of this active solution are Chlorobenzene and DIO. When I try to spin-coat a phosphomolybdic acid...

28 March 2019 7,675 7 View

How can I convert from ppm to weight or volume for stearic acid in solution?

Dear, How can I convert from ppm to %wt or %vol for stearic acid in solution? For example 200 ppm of stearic acid in 10 mL of ethanol contains 20 mg PEIE. Thanks Sincerely, Adi Prasetio

23 January 2019 8,510 3 View

Hi! Does anyone know of an easy method to stain nerve tissue in isects?

I'm looking for a staining method or an antibody that'll work with antibody staining protocols for microscopy. I have a protein that I suspect enters the insect nerve tissue. I have specific...

10 January 2019 1,450 2 View

Roughness surface versus kinetic energy?

how can i simulate roughness surface of deposition thin film versus kinetic energy

17 October 2018 2,532 3 View

Sputtring Process with Molecular Dynamics?

How can i model the deposition metal on metal by Sputtring Process using MD lammps ?

27 July 2018 7,634 3 View

Good sites to recruit survey participants on a grad school student budget?

Any good recommendations for participant recruitment for online surveys on a grad school student budget?

02 March 2021 4,293 4 View

How long does it take to get a modeller(for homology modelling) license?

I submitted my e-mail address on modeller website to get a license. The problem is that, the site cannot process my school e-mail (ewhain.net). I submitted my Lab website and school name so that...

25 February 2021 9,054 3 View

Is it mandatory to specify Subjects Combinations in Generalized Linear Mixed Models (SPSS)?

Hi all, I have data with two levels: lets think of the classic example of students and schools. When running the analysis in SPSS and selecting the Random Effects, we can select (we can or we...

24 February 2021 7,379 4 View

Various schools have emerged in the study of comparative literature. Mention the most prominent of them in a nutshell.?

Various schools have emerged in the study of comparative literature. Mention the most prominent of them in a nutshell. And he talked about one of them?

09 February 2021 1,099 8 View

Science Teacher's Attitudes Towards Career Learning Index among Senior School Students in Chemistry?

Full discussion of this project topic

09 February 2021 2,534 3 View

What is your opinion regarding opening of school? Now students are supposed to join school. Do you think that decision is in the interest of society ?

From long Pendamic now government is opening school and colleges on for off line classes. What do you think that this decision is fruitful to the students and society too?

08 February 2021 3,068 6 View

Hi, Good day! Do you have related studies about my title, "Factors Affecting the Senior High School Students' Stress Tolerance in Problem Solving"?

I am new researcher. I want to learn more and I need your help. Thank you.

04 February 2021 6,834 4 View

What if there is no population to pilot an adapted questionnaire? What about its reliability and validity?

Hello, I'm new to this platform, and this is my first ever post in here. So, please excuse me in advance if I happen to cause any inconvenience. Coming back the question; I have just adapted a...

26 January 2021 9,030 4 View

What is the best Perception instrument that I could use for Student Perception towards a subject?

I am starting to write my thesis for Graduate School and I am struggling to find appropriate instrument regarding student perception instrument. The perceptions to be discussed are (a) interest...

17 January 2021 9,218 3 View

No title

14 January 2021 8,086 37 View