Hello fellow researcher .. What is the meaning of your name?

I would like to create a small guide containing the meanings of the names .. Thanks to everyone who cooperates with me in achieving it.

03 March 2021 5,266 4 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Which is better medicine or food in obesity?

Preference in terms of the scientific aspect

28 February 2021 796 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 anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

Treating Intermediate Variable in Linear Regression Analysis in SPSS?

While performing the Linear regression analysis in SPSS version 26.0.0. my intermediate/mediation variable goes to the excluded section. Please share your valuable suggestion "How to restrain the...

25 February 2021 4,591 5 View

How to find natural frequency of a bridge from vehicle induced vibrations?

i have frequencies of bridge that are effected by mass of vehicle. the problem is when any vehicle pass the bridge it would add the its mass to the bridge mass ultimately mass of the bridge will...

22 February 2021 10,004 3 View

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View

Small displacement measurement in vacuum?

Hello, I have a question. there is a circular thin foil which vibrates in vacuum, the foil restricted and moves up and down. it is like a diaphragm between two pipes . both sides are in vacuum but...

18 February 2021 8,075 3 View

Pile-Raft connection?

Greetings, I was wondering what is the optimal way to connect the reinforcement at the top of the pile (the part that connects to the raft foundation): -The pile bars are left straight and...

16 February 2021 2,007 3 View

Data is not stationary, i tried ADF Eviews, I got I(0) at level. but when looking at the graph and correlogram, my data isnt stationary at level, why?

I am trying to make my data stationary. I tried ADF on EVIEWS and got that my data is already stationary at level. However when looking at graph and correlogram it was clearly not the case. I...

12 September 2020 8,029 5 View

How to predict accurate Fluorescence/Vertical Emissions employing TD- DFT? Excited State Tuning Approach?

How can we predict accurate Fluorescence wavelengths employing DFT? Which is the most accurate DFT methodology currently available which can predict accurate Fluorescence wavelengths (Vertical...

05 August 2020 4,345 1 View

Dear colleguaes, what is the difference betweem VASP (Vienna Ab initio Simulation Package) and ADF (Amsterdam Density Functional)?

I am interesting about software to calculate band structure, elastic properties, etc. for semiconductor multicomponent systems (ternary, quaternary). Thank you.

24 March 2020 6,769 3 View

Cross section test to see whether second generation unit root test is required or not ?

I have a confusion. I had considered data in context of a particular nation in a paper and a reviewer suggested me to go for second generation unit root test instead of first generation unit root...

24 December 2019 9,239 1 View

What is the best method to test stationarity in r ?

i would like to perform a cross-correlation between two financial indices in r, but to do so i want to perform a stationarity test. i would like to know what is the best way to do so. i saw that...

08 September 2019 1,074 4 View

How to calculate the break date from Hathemi j (2008) cointergration test with double structural break ?

I have run the Hathem J code widely available on GAUSS. And, I am getting this result; ******** Modified ADF Test *********** t-statistic = -5.5274237 AR lag = 1.0000000 first break...

06 July 2019 211 2 View

When Asymptotically Distribution-Free (ADF) Technique could be used as Estimation Method?

ADF is referred as generalized method of moments (GMM) estimator and can be applied to relax the normality assumption of errors (as non-parametric methods). When these methods can be used. How the...

05 June 2019 3,285 2 View

Which computational quantum chemistry software is faster?

Hi everyone! I am a beginner of computational quantum chemistry, and I want to choose an effective software for the DFT calculation of thermodynamics and kinetics of chemical reactions. I have...

04 May 2019 8,169 13 View

Granger causality lag length and VAR model building?

Dear researchers, im currently trying to build a VAR model with fixed lag length of 12 lags for forecasting. Im currently only interested in one variable and the impact of the others on it. My...

04 May 2019 1,262 4 View

How to perform Granger Causality test correctly?

i am currently doing a research to study the granger cause and effect among female labor force participation rate (FLFPR), fertility rate (FR), infant mortality rate (IMR) and female tertiary...

15 November 2018 2,893 2 View