Boundary conditions are defined by Maxwell's/Gauss equations, so why we use ohmic/schottky boundaries in metal/semiconductor interfaces instead?

Maxwell's/Gauss equations define the electric fields and current density at the interface of metal/dielectric. Since semiconductor is a dielectric material, I would expect that these boundaries...

18 April 2018 2,651 4 View

Is the current equals sigma multiplied by the spatial derivative of the electrochemical energy (or fermi energy)?

I saw in a paper that the current in a metal is sigma (conductivity=e*mu*n) multiplied by dk/dx where k is the electrochemical energy (or fermi energy). It seems to me that it is some kind of a...

14 December 2017 2,836 2 View

Is there charges inside a metal when there is a current flow?

In electrostatics, inside a metal there are no charges (electric field equals zero, thus one can find the potential using Laplace equation (together with the proper boundary conditions). Is it...

12 December 2017 8,459 4 View

How can I solve laplace equation numerically on a rectangle geometry when one axisc is much bigger than the other?

I want to solve the laplace equation on rectangle geometry.My problem is that one axisc is much bigger than the other.x=100 nm & y~1cmOne edge with Dirichlet boundaryOther two edges with...

30 December 2015 797 11 View

Is there band bending in metal organic interface?

What are the main differences between metal-inorganic and metal-organic interfaces? Is there a band bending or migs (metal induced gap states) in the metal-organic interface? And how the...

30 December 2015 2,634 3 View

How do I calculate/estimate the "Electron and Hole site densities" (N_0,P_0)?

27 October 2015 8,223 1 View

Does anyone know a program that can convert my .cdf spectra in RAW format (.dat)?

Free is best. I need to convert .cdf file (form Agilent Chemstation) into .dat file (for Chrom-Card)

09 November 2013 4,160 2 View

I cannot get a uniform layer of PCBM in a Chlorobenzene solution on a PEDOT:PSS layer by Spin-Coating

I need to fabricate organic solar cells. The organic materials I'm using are soluble in Chlorobenzene (PCBM, P3HT, PCDTBT, and etc.) I'm doing some tests in order to obtain uniform layers on top...

01 January 1970 9,446 6 View

What are the currents (conduction and displacement) inside a disconnected capacitor if between plates there is a time dependent electric field source?

The general term of the current reads J_total=J_conduction+J_Displacement. Where in most cases J_C obeys Ohms law and J_D=epsilon dE/dt. Usually when a capacitor is disconnected from the electric...

01 January 1970 1,969 9 View

How can the use of Jolly Phonics improves the quality of reading, speaking and writing in rural disadvantaged communities in Papua New Guinea?

Jolly Phonics reading program is an effective way to teach early reading to young learners. How can lectures at the university prepare early childhood student teachers to teach Jolly Phonics to...

03 March 2021 3,731 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

How to run raise regression in R?

if anybody know how to run raise regression in r, and raise parameter selection, please help me

24 February 2021 8,199 1 View