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4313. iPTF Discoveries of Recent Core-Collapse SupernovaeF. Taddia, Raphael Ferretti, C. Fremling, Anders Nyholm, S. Papadogiannakis, Tanja Petrushevska, L. Hangard, 2015, drugi sestavni deli Opis: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Core-Collapse SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W).
Ključne besede: Supernovae, Transients
Objavljeno v RUNG: 24.01.2018; Ogledov: 3160; Prenosov: 0
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4314. iPTF Discoveries of Recent Type Ia SupernovaeTanja Petrushevska, 2015, drugi sestavni deli Opis: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W).
Ključne besede: Supernovae, Transients
Objavljeno v RUNG: 24.01.2018; Ogledov: 3040; Prenosov: 0
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4315. iPTF Discoveries of Recent Type Ia SupernovaeL. Hangard, Tanja Petrushevska, 2015, drugi sestavni deli Opis: The intermediate Palomar Transient Factory (ATel #4807) reports the discovery and classification of the following Type Ia SNe. Our automated candidate vetting to distinguish a real astrophysical source (1.0) from bogus artifacts (0.0) is powered by three generations of machine learning algorithms: RB2 (Brink et al. 2013MNRAS.435.1047B), RB4 (Rebbapragada et al. 2015AAS...22543402R) and RB5 (Wozniak et al. 2013AAS...22143105W).
Ključne besede: Supernovae, Transients
Objavljeno v RUNG: 24.01.2018; Ogledov: 3213; Prenosov: 0
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4316. Ogrevalni sistemi : Prenova večstanovanjske stavbe2018, radijski ali tv dogodek Opis: Naše stavbe porabijo več energije kot energija in transport. Po drugi strani prav zgradbe, v katerih živimo, predstavljajo največji varčevalni potencial, sploh če poskrbimo za dobro izolacijo fasade, podstrešja in drugih delov hiše, z zamenjavo ogrevalnega sistema in zamenjavo oken pa bi se poraba energije lahko zmanjšala tudi za 50 in celo več odstotkov.Stanovalci bloka na Vranskem so se zato odločili za temeljito energetsko prenovo stavbe, ki danes predstavlja dobro prakso v Sloveniji in študijski primer tudi za strokovnjake na področju energetike.
Ključne besede: Oskrba z energijo, prenova stavb, učinkovita raba energije, obnovljivi viri energije
Objavljeno v RUNG: 24.01.2018; Ogledov: 4587; Prenosov: 0
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4317. Analysis and characterization of thermal systematic effects on the PLANCK LFI dataTanja Petrushevska, 2010, magistrsko delo Opis: The cosmic microwave background radiation discovered by Penzias and Wilson in 1965, is considered one of the most important experimental evidences in favour of the Hot Big Bang standard cosmological model. This radiation provides an image of the Universe when it was about 380,000 years old and has a blackbody spectral distribution at temperature T=2.725±0.002 K, index of thermodynamic equilibrium with the mater in epoch when it was released. The cosmic background radiation presents anisotropies at level of 10 5 which provide valuable information about the origin and the evolution of the Universe.
After the discovery of background radiation, tens of experiments have been performed to measure this radiation and its anisotropies. In 1992 the COBE satellite revolutionized cosmology by detecting temperature anisotropies for the first time. Launched on May 14, 2009, Planck is a European Space Agency mission designed to measure the CMB anisotropies with an accuracy set by fundamental astrophysical limits. To do this, Planck is imaging the whole sky with an unprecedented combination of sensitivity ( ΔT/T~2*10^-6), angular resolution (to 5’), and 9 frequency coverage (30 857 GHz). To reach these ambitious requirements, Planck uses an active cryogenic thermal system which cools the instruments to 0.1 K. The high sensitivity of the instrument and the cryogenic system makes the thermal systematic effects study of crucial importance to the scientific success.
The thesis is divided into six chapters:
1. Chapter 1 explains the properties of the cosmic background radiation and its anisotropies;
2. Chapter 2 presents a short overview of the various experiments dedicated to the study of cosmic background radiation;
3. Chapter 3 describes the Planck mission, its instruments and its goals, in
particular the Low Frequency Instrument (LFI) and its thermal structure;
Chapter 4 discusses the analysis of the LFI thermal stability. This work was carried out in the Physics department at the University of Trieste, at the LFI Data Processing Centre located at INAF (Instituto Nazionale di AstroFisica) - OATS (Astronomical Observatory of Trieste);
Chapter 5 presents the results of this analysis;
in Chapter 6 conclusions are drawn and proposals for future work are discussed.
Ključne besede: Cosmic background radiation, CMB, Planck, satellite mission
Objavljeno v RUNG: 24.01.2018; Ogledov: 3104; Prenosov: 109
 Celotno besedilo (23,33 MB) |
4318. Oskrba stavbe z energijo in OVE z vidika izpolnjevanja sNES kriterijev pri celoviti prenovi stavbHenrik Gjerkeš, 2017, objavljeni povzetek strokovnega prispevka na konferenci Opis: Pri optimalni zasnovi stavbe sta gradnja ali obnova stavb in trajnostna oskrba z energijo neločljivo povezana dela, ki morata biti obravnavana celovito, na stroškovno optimalen, okolju prijazen in družbeno odgovoren način. sNES standardi zahtevajo višjo stopnjo učinkovitosti, ob hkratni skrbni stroškovno-optimalni analizi
alternativnih sistemov za oskrbo z energijo, ki so na voljo na/blizu območja stavbe/soseske - in to brez
poseganja v kakovost bivanja stanovalcev
Ključne besede: Skoraj nič-energijske stavbe, obnovljivi viri energije, prenova stavb
Objavljeno v RUNG: 24.01.2018; Ogledov: 3810; Prenosov: 232
Celotno besedilo (3,14 MB) |
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4320. Pri usklajevanju lastnikov imajo ključno vlogo upravniki : Energijske prenoveJulijana Bavčar, 2017, intervju Opis: Lastnike stanovanj za energijsko prenovo večstanovanjskih stavb motivira ponudba subvencij, veliko vlogo pa igra tudi povračilni rok za posamezne ukrepe. Pogosto se odločijo za tiste, ki so cenejši in se prej izplačajo, zato ostanejo na pol poti. Ker se razmere pri doseganju energetskih kazalnikov vedno bolj zaostrujejo, tehnologije pa so čedalje zahtevnejše, so uspešni projekti, za katere imajo lastniki že v fazi sprejemanja odločitev strokovno tehnično podporo. O nepogrešljivih korakih za uspešno izvedbo celovite energijske prenove, katere najotipljivejša rezultata sta prihranek za energijo in ugodnejše bivanje, smo se pogovarjali z dr. Marjano Šijanec Zavrl, mag. Mihom Tomšičem in dr. Henrikom Gjerkešem z Gradbenega inštituta ZRMK.
Ključne besede: Prenova večstanovanjskih stavb, upravniki, učinkovita raba energije
Objavljeno v RUNG: 24.01.2018; Ogledov: 4772; Prenosov: 0
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