Observational tests of Tachyonic and Holographic Models of InflationMilan Milošević
- The document discusses inflationary cosmology and tachyon fields. It provides details on analytic calculations of spectra for different inflationary models using the first order approximation and the slow-roll and Dirac-Born-Infeld approximations.
- Tables in the document show the mean, standard deviation, median and range of values for the spectra calculated using the different approximations for various inflationary potentials in different cosmological models. The tables also show the relative distance between the approximations and the exact first order result.
Kako smo videli nevidljivo - od crne rupe do Nobelove nagrade za fizikuMilan Milošević
Predavanje održano 27. septembra 2021. godine u okviru serije naučno-popularnih predavanja povodom obeležavanja 50 godina studija fizike, hemije i matematike na Univerzitetu u Nišu i dana Prirodno-matematičkog fakultetu u Nišu.
24. decembar 2020
Drugo predavanje u okviru serije predavanja "Ekskurzija kroz Sunčev sistem" koju organizuje AD Alfa u okviru projekta "Malim koracima ka astronomiji" uz podršku Centra za promociju nauke
Observational tests of Tachyonic and Holographic Models of InflationMilan Milošević
- The document discusses inflationary cosmology and tachyon fields. It provides details on analytic calculations of spectra for different inflationary models using the first order approximation and the slow-roll and Dirac-Born-Infeld approximations.
- Tables in the document show the mean, standard deviation, median and range of values for the spectra calculated using the different approximations for various inflationary potentials in different cosmological models. The tables also show the relative distance between the approximations and the exact first order result.
Kako smo videli nevidljivo - od crne rupe do Nobelove nagrade za fizikuMilan Milošević
Predavanje održano 27. septembra 2021. godine u okviru serije naučno-popularnih predavanja povodom obeležavanja 50 godina studija fizike, hemije i matematike na Univerzitetu u Nišu i dana Prirodno-matematičkog fakultetu u Nišu.
24. decembar 2020
Drugo predavanje u okviru serije predavanja "Ekskurzija kroz Sunčev sistem" koju organizuje AD Alfa u okviru projekta "Malim koracima ka astronomiji" uz podršku Centra za promociju nauke
Evolucija zvezda i nastanak crnih rupa - kako smo videli nevidljivoMilan Milošević
Predavanje održano 6. novembra 2019. godine u gimnaziji u Zaječaru u okviru projekta "Apolo na mreži" koji realizuje AD Alfa uz podršku centra za promociju nauke.
Kako videti nevidljivo? - prva fotografija crne rupeMilan Milošević
Predavač Milan Milošević.
Predavanje održano 31. oktobra na Prirodno-matematičkom fakultetu u Nišu, u okviru projekta “Između redova i van okvira: Seminar za mlade i ambiciozne fizičare” sekcije Young Minds Section Niš, čije finansiranje je odobrilo Evropsko društvo fizičara (EPS).
10. oktobar 2019, PMF
Obeležavanje Svetske nedelje svemira, u okviru projekta "Apolo na mreži" koji realizuje AD Alfa uz podršku Centra za promociju nauke.
8. oktobar 2019, PMF Niš
Obeležavanje Svetske nedelje svemira, u okviru projekta "Apolo na mreži" koji realizuje AD Alfa uz podršku Centra za promociju nauke.
NETCHEM CPD: Audio prezentovanje jednosmerna i dvosmerna komunikacijaMilan Milošević
Predavanje održano 17. aprila 2019 na Prirodno-matematičkom fakultetu u Nišu, u okviru CPD kursa "Virtual Learning Environment in University Laboratory Classes" koji se realizuje kao deo aktivnosti NETCHEM projekta.
NETCHEM CPD: Video konferencijsko povezivanjeMilan Milošević
Predavanje održano 10. aprila 2019 na Prirodno-matematičkom fakultetu u Nišu, u okviru CPD kursa "Virtual Learning Environment in University Laboratory Classes" koji se realizuje kao deo aktivnosti NETCHEM projekta.
Predavanje održano u okviru programa Smotre najboljih radova prijavljenih na Konkurs za učenike srednjih škola „Mobilni telefon u fizičkom eksperimentu“
20. april 2019, Prirodno-matematički fakultet u Nišu
The document discusses a project funded by the European Commission on remote access to analytical chemistry instrumentation. It provides an overview of remote access data collected from the NETCHEM consortium. Important links to the NETCHEM website and a remote session request form are included. The project aims to overcome technical and social barriers in instrumental analytical chemistry education.
Overview of collected WARIAL data from NETCHEM consortiumMilan Milošević
ERASMUS+ PROJECT NETCHEM: ICT Networking for Overcoming Technical and Social Barriers in Instrumental Analytical Chemistry Education
University of Niš, Serbia, 24-25 September 2018
Agreement of protection of intellectual propertyMilan Milošević
ERASMUS+ PROJECT NETCHEM: ICT Networking for Overcoming Technical and Social Barriers in Instrumental Analytical Chemistry Education
University of Niš, Serbia, 24-25 September 2018
Observational Parameters in a Braneworld Inlationary ScenarioMilan Milošević
This document describes a study of observational parameters in a braneworld inflationary scenario. It provides background on standard cosmological models, inflationary theory, and observational parameters measured by Planck. It then discusses tachyon inflation models and the Randall-Sundrum braneworld model. The study extends the RS model to include a dynamical radion field and examines the dynamics and observational predictions of tachyon inflation in this braneworld model through numerical simulations.
Numerical Calculation of the Hubble Hierarchy Parameters and the Observationa...Milan Milošević
This document discusses the numerical calculation of observational parameters for inflationary cosmology models, specifically tachyon inflation models and Randall-Sundrum braneworld models. The author develops software to solve the dynamical equations for tachyon scalar fields and radion fields during inflation. The software allows calculation of the scalar spectral index, tensor-to-scalar ratio, and number of e-folds for different model parameters. The best fitting results are obtained for tachyon potentials with 60 ≤ N ≤ 90 e-folds and dimensionless parameter 1≤ κ ≤ 10. The software provides a tool to test a wide range of inflationary models by inputting the corresponding Hamiltonian and Friedmann equations.
This document discusses the history and features of internet forums. It begins by explaining how forums originated from bulletin boards and early online discussion sites. It then covers key aspects of forums like their hierarchical structure, user permissions, and moderation. The document also compares forums to other social media, noting forums allow more control over content. It concludes by providing an overview of Invision Power Board, a popular forum software.
Multilingual approach for video-clips and learning material for courses offer...Milan Milošević
ERASMUS+ PROJECT NETCHEM: ICT Networking for Overcoming Technical and Social Barriers in Instrumental Analytical Chemistry Education
Brno University of Technology, Brno, Czech Republic (03-06 September 2018)
The shape of Fe Ka line emitted from relativistic accretion disc around AGN b...Milan Milošević
The document discusses simulations of the Fe Kα emission line from accretion disks around supermassive black holes (SMBHs) in active galactic nuclei (AGN). Ray tracing simulations in Kerr spacetime were used to model the line profiles for different black hole spins, disk radii, inclinations, and emissivity profiles. Relativistic effects like Doppler shifts and gravitational redshift distort the line profiles. Comparisons of simulated and observed line profiles can determine SMBH properties like mass and spin, providing insights into plasma physics and strong gravity near AGN black holes.
Evolucija zvezda i nastanak crnih rupa - kako smo videli nevidljivoMilan Milošević
Predavanje održano 6. novembra 2019. godine u gimnaziji u Zaječaru u okviru projekta "Apolo na mreži" koji realizuje AD Alfa uz podršku centra za promociju nauke.
Kako videti nevidljivo? - prva fotografija crne rupeMilan Milošević
Predavač Milan Milošević.
Predavanje održano 31. oktobra na Prirodno-matematičkom fakultetu u Nišu, u okviru projekta “Između redova i van okvira: Seminar za mlade i ambiciozne fizičare” sekcije Young Minds Section Niš, čije finansiranje je odobrilo Evropsko društvo fizičara (EPS).
10. oktobar 2019, PMF
Obeležavanje Svetske nedelje svemira, u okviru projekta "Apolo na mreži" koji realizuje AD Alfa uz podršku Centra za promociju nauke.
8. oktobar 2019, PMF Niš
Obeležavanje Svetske nedelje svemira, u okviru projekta "Apolo na mreži" koji realizuje AD Alfa uz podršku Centra za promociju nauke.
NETCHEM CPD: Audio prezentovanje jednosmerna i dvosmerna komunikacijaMilan Milošević
Predavanje održano 17. aprila 2019 na Prirodno-matematičkom fakultetu u Nišu, u okviru CPD kursa "Virtual Learning Environment in University Laboratory Classes" koji se realizuje kao deo aktivnosti NETCHEM projekta.
NETCHEM CPD: Video konferencijsko povezivanjeMilan Milošević
Predavanje održano 10. aprila 2019 na Prirodno-matematičkom fakultetu u Nišu, u okviru CPD kursa "Virtual Learning Environment in University Laboratory Classes" koji se realizuje kao deo aktivnosti NETCHEM projekta.
Predavanje održano u okviru programa Smotre najboljih radova prijavljenih na Konkurs za učenike srednjih škola „Mobilni telefon u fizičkom eksperimentu“
20. april 2019, Prirodno-matematički fakultet u Nišu
The document discusses a project funded by the European Commission on remote access to analytical chemistry instrumentation. It provides an overview of remote access data collected from the NETCHEM consortium. Important links to the NETCHEM website and a remote session request form are included. The project aims to overcome technical and social barriers in instrumental analytical chemistry education.
Overview of collected WARIAL data from NETCHEM consortiumMilan Milošević
ERASMUS+ PROJECT NETCHEM: ICT Networking for Overcoming Technical and Social Barriers in Instrumental Analytical Chemistry Education
University of Niš, Serbia, 24-25 September 2018
Agreement of protection of intellectual propertyMilan Milošević
ERASMUS+ PROJECT NETCHEM: ICT Networking for Overcoming Technical and Social Barriers in Instrumental Analytical Chemistry Education
University of Niš, Serbia, 24-25 September 2018
Observational Parameters in a Braneworld Inlationary ScenarioMilan Milošević
This document describes a study of observational parameters in a braneworld inflationary scenario. It provides background on standard cosmological models, inflationary theory, and observational parameters measured by Planck. It then discusses tachyon inflation models and the Randall-Sundrum braneworld model. The study extends the RS model to include a dynamical radion field and examines the dynamics and observational predictions of tachyon inflation in this braneworld model through numerical simulations.
Numerical Calculation of the Hubble Hierarchy Parameters and the Observationa...Milan Milošević
This document discusses the numerical calculation of observational parameters for inflationary cosmology models, specifically tachyon inflation models and Randall-Sundrum braneworld models. The author develops software to solve the dynamical equations for tachyon scalar fields and radion fields during inflation. The software allows calculation of the scalar spectral index, tensor-to-scalar ratio, and number of e-folds for different model parameters. The best fitting results are obtained for tachyon potentials with 60 ≤ N ≤ 90 e-folds and dimensionless parameter 1≤ κ ≤ 10. The software provides a tool to test a wide range of inflationary models by inputting the corresponding Hamiltonian and Friedmann equations.
This document discusses the history and features of internet forums. It begins by explaining how forums originated from bulletin boards and early online discussion sites. It then covers key aspects of forums like their hierarchical structure, user permissions, and moderation. The document also compares forums to other social media, noting forums allow more control over content. It concludes by providing an overview of Invision Power Board, a popular forum software.
Multilingual approach for video-clips and learning material for courses offer...Milan Milošević
ERASMUS+ PROJECT NETCHEM: ICT Networking for Overcoming Technical and Social Barriers in Instrumental Analytical Chemistry Education
Brno University of Technology, Brno, Czech Republic (03-06 September 2018)
The shape of Fe Ka line emitted from relativistic accretion disc around AGN b...Milan Milošević
The document discusses simulations of the Fe Kα emission line from accretion disks around supermassive black holes (SMBHs) in active galactic nuclei (AGN). Ray tracing simulations in Kerr spacetime were used to model the line profiles for different black hole spins, disk radii, inclinations, and emissivity profiles. Relativistic effects like Doppler shifts and gravitational redshift distort the line profiles. Comparisons of simulated and observed line profiles can determine SMBH properties like mass and spin, providing insights into plasma physics and strong gravity near AGN black holes.
2. Milan Milošević
Istraživač saradnik, Departman za fiziku PMF
Kabinet 306. (III sprat)
E-mail: mmilan@svetnauke.org
Web: www.svetnauke.org i www.mmilan.com
/mmilann /mmilan
Konsultacije: sreda, 14-15h
3. Vežbe i lab. vežbe
Vežbe – rešavanje zadataka, vežbaje na računaru itd.
Lab. vežbe
5 različitih vežbi + jedna nadoknada
Zadaci su na sajtu predmeta:
http://wpresspmf.pmf.ni.ac.rs/?page_id=1418&idp=2404
rešenje radi (2 boda) + neka izmena na času (3 boda)
Prvi deo – samo papir (i olovka)
Kraj vežbe – snimiti i poslati e-mailom (prvi i drugi deo!)
Više informacija na času
4. 1. grupa 2. grupa
14:00h 16:00h
2182 Мила Вујовић
2183 Милица Перић
2184 Јована Станимировић
2185 Катарина Бито
2186 Јована Савић
2187 Драгана Митровић
2188 Ђорђе Милановић
2189 Милена Симић
2190 Милица Костић
2191 Татјана Јовановић
2192 Марко Јоргаћевић
2193 Драган Раковић
2194 Тома Новаковић
2195 Соња Петковић
2196 Никола Цветковић
2197 Јован Рушпић
2198 Страхиња Павловић
2199 Југослав Демировић
2200 Воја Стаменковић
2201 Александар Димитријевић
2202 Нађа Динић
2203 Катарина Живковић
2204 Марко Михајловић
2205 Јелисавета Радовановић
2206 Мартина Стојановић
2207 Милош Антић
5. E-mail @pmf.edu.rs
Nije tema ovog predmeta, ali može da koristi
http://mail.pmf.edu.rs/
Dobili ste korisničko ime i šifru, ako ne radi „PMF
administrira ove naloge, što znači da se za problem sa
logovanjem i zamenu passworda možete obratiti u RC sa
indeksom kao dokazom identiteta.“
Na sajtu fakulteta pogledajte:
6. Posetite i
Sajt Departmana za fiziku
http://fizika.pmf.ni.ac.rs
Facebook stranica Departmana
http://www.facebook.com/fizika.nis
Ako vas interesuje:
Društvo fizičara Niš
http://dfn.pmf.ni.ac.rs
Astronomsko društvo „Alfa“
http://www.alfa.org.rs
17. Preporuka
Na početku programa – zaglavlje
Imena promenljivih – neki smisao
Komentari – za promenljive, delove koda...
Prazne linije – razdvajaju blokove koda
20. Promenljive
Deklarisanje promenljivih:
int a;
int b = 10;
int rezultat = a + b;
Globalne i lokalne
Zavisi od mesta deklarisanja
U funkciji (unutar {...})– važi za tu funkciju -> lokalna
Globalna – pristupa bilo gde u kodu
Moraju početi slovom ili _donjom crtom, ne smeju da sadrže
navodnike, razmake i slične specijalne znake
Razlikuju mala i VELIKA slova
22. Nekoliko primera
1. Izračunati zbir dva broja.
2. Napisati program za izračunavanje obima i površine
pravouglog trougla ako su date stranice.
3. Napisati program koji za dva broja uneta sa tastature
štampa njihov zbir, proizvod i količnik.
4. Izračunati površinu trougla prema Heronovom
obrascu