If the lowest unoccupied orbital is considered in organic photovoltaic solar cell?

Dear people, I am confused about LUMO orbitals in photovoltaic solar cells. According to the literature, Voc (open circuit voltage) is related to the HOMO orbital of donor and LUMO orbital of...

16 August 2020 1,538 4 View

How to sure that a optimized structure is traped in a global potential well not in the local one for large systems?

Dear people, I have optimized a dimer (each monomer contains about 50 to 60 atoms) structure in its equilibrium distances (I have done a rigid scan to find the equilibrium distance between...

05 August 2020 7,683 1 View

How to calculate the Jsc for solar cell?

Dear all, I need to calculate the amount of Jsc for solar cell using quantum mechanics approach. As the Jsc is the integration of the Air mass spectrum, is it possible to calculate it according...

30 November 2019 5,411 2 View

Phycoerythrin from two Nostoc strains SDS-PAGE?

Dear colleagues We could successfully extract and purify the Phycoerythrin from two Nostoc strains with four major steps viz. preparation of crude extract (Step I), 65% ammonium sulfate...

16 July 2018 1,264 7 View

How to stain Sesquiterpene lactones?

how it is possible to stain Sesquiterpene lactones in plant tissue. I am looking for a method that specifically stains Sesquiterpene lactones?

20 June 2018 815 1 View

How to compute error rates for a cascade verification system?

13 September 2016 3,017 3 View

Does anyone know that why some of filaments of spirulina are in red and some of them are blue at the same slide?

Hi every one Recently we bought some permanent microscopic slide of different species of cyanobacteria. I have a question about the slide of spirulina. Does anyone know that why some of filaments...

22 August 2016 9,099 6 View

How does the solvent affect the molecular weight of polymer?

19 December 2014 5,754 7 View

Is using previous years input data for forecasting future sales with Anfis logical?

01 January 1970 6,754 7 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

How to calculate stress at the cross section of spherical particles within a matrix?

Hi all, I am currently working on some background calculations before I start a new project related to metal matrix particulate composites. I am trying to find a way to calculate the stress at...

19 February 2021 8,503 3 View

How do you annotate figures to show significance?

30 January 2021 1,008 3 View

How can I generate a population with a fixed correlation coefficient in R?

I want to generate an artificial population using two variables (say x & y) with a fixed correlation between x & y. Which package/command in R software can help in this?

18 January 2021 2,545 9 View

What causes the temperature variation of Carbon/PAEK composite sample while heating with AC current at certain voltage in a number of cycles/one time?

It should be either decrease or increase for nth time during heat supply. Is there any possibility of irregular temperature sequences as shown in figure. In that picture the highest temperature...

12 January 2021 4,390 4 View

Compare to prevalence before and after covid in population studies?

Dear researchers, I have a prevalence of some diet habit in relatively large narrow population of children 13 years old in 2019 and 2020. Logically they are different population. However, since...

10 January 2021 3,170 9 View

R package for multivariate dispersion as a measure of beta diversity?

Hello, everyone: I've been reading some old and new papers on how to compute beta diversity using incidence or abundance data from several assemblages/communities. For my data, I am interested...

03 January 2021 9,293 1 View

How can I build one phylogenetic tree for an arthropod community when I had known their scientific names?

I am working on the phylogenetic analysis for communities of plants and arthropods. A standardized protocol of building phylogenetic tree for plant species list that was widely used in studies....

29 December 2020 181 3 View

2nd factor analysis, interpretation help, Can any one explain?

I am trying to see if cultural intelligence (CQ) is composite of skill, knowledge, cognition using 2nd order factor. i get the idea of latent variable (Sk,Kn,Co)'s standardized regression weight...

14 December 2020 1,930 3 View

Is (Are) there any valid corpus containing geographical events queries?

Hi all, I'm currently looking for a question corpus to have a plausible number of spatial events queries. I found MS MARCO dataset in which I could extract a reasonable number of geographical...

08 December 2020 7,844 2 View