How can we calculate entropy in bigbang time?

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Question about the nano particle (AL2O3 OR CUO)to base fluid of PTC?

I have one question about the application of nano particle in PTC(parabolic through collector). I have prepared a mathematical model and MATLAB code about the simulation of PTC. I also validate...

01 February 2019 1,309 4 View

In next summer , if any colleagues have a program or teaching in their university, please let me know about this. They can see my page in researchgat?

In next summer , if any colleagues have a program or teaching in their university, please let me know about this. They can see my page in researchgate. For better evaluation I can send my full CV

03 April 2018 7,649 0 View

Anyone has a paper about modeling of fernel collector?

02 March 2018 5,581 2 View

How you can recover heat in Stirling engine?

02 March 2018 7,438 1 View

Anyone has a electronic version of the book entitled"Solar Engineering of Thermal Processes written by John A. Duffie, William A. Beckman?

01 February 2018 8,853 6 View

Can any researcher propose a method to calculate entropy generation in earth? totally per (J/K)?

03 April 2017 6,976 1 View

How we could obtain a new method to optimization?

Optimization methods such as genetic algorithm, searching method,.....?

31 December 2015 2,959 0 View

How we can calculate social cost of air pollution?

Social cost of air pollution of negative effects of air pollution on society life,health,.....

31 December 2015 1,166 0 View

Cooperation in research energy and optimization field

I am an associate professor of pardis branch, islamic azad university. He received hid PhD in mechanical engineering from sharif university of technology in 2007 (first rank:19.13/20) and his...

01 January 1970 8,934 0 View

Development a novel method to calculation entropy production of earth

I developed a method to calculation the entropy production of earth Please read it and let me know about your comments. I have considered some problem in it so I should correct it.

01 January 1970 8,961 3 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

How to make a time series imputation benchmark ?

Hello ! In a work, I have to benchmark different algorithms to fill in missing values in time series. I insist on the fact that this is imputation and not forecasting. In my case, I have access...

24 February 2021 7,470 7 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View

How can I obtain time series data by country on night-time light (brightness) ?

Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...

24 February 2021 8,625 4 View

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future ?

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future without necessarily conducting the assay for an extended...

23 February 2021 7,842 1 View

How to run repeated measures in mvabund?

I have a dataset of fish species abundances collected from 6 different habitats over the course of 30 years. Fish were collected multiple times per year and environmental variables were recorded...

21 February 2021 3,838 1 View

How to resolve Gaussian error termination " Error termination via Lnk1e in F:\G16W\l103.exe" for TS(QST3)?

When I run the job for TS(QST3) in gaseous phase, it was completed without any error. But when I add water in CPCM model it terminated with an error: Inconsistency: ModMin= 2 Eigenvalue=...

21 February 2021 3,198 2 View

Vikram Zaveri

Entropy of the universe just after the big bang in periodic quantum gravity and cosmology theory is given by

S = k . ln(W).

where S is the entropy, k Boltzmann’s constant and W number of microstate. In our PQG model the value of the entropy of the Universe shortly after the Big Bang is S = 196.6 x 10^{-23} J/K which corresponds to W = 7.46383 x 10^{61} and each microstate having planck energy level which corresponds to macrostate energy level of 1.823 x 10^{81} GeV which is the total energy of the universe at present epoch including CDM and dark energy.

Article Periodic quantum gravity and cosmology

Shufeng Zhang

Entropy: A concept that is not a physical quantity

https://www.researchgate.net/publication/230554936_Entropy_A_concept_that_is_not_a_physical_quantity