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Abstract: The Cherenkov Telescope Array (CTA) will be the next-generation gamma-ray observatory, investigating gamma-ray and cosmic ray astrophysics at energies from 20 GeV to more than 300 TeV. The observatory, consisting of large arrays of imaging atmospheric Cherenkov telescopes in both the southern and northern hemispheres, will provide full-sky coverage and will achieve a sensitivity improved by up to an order of magnitude compared to existing instruments such as H.E.S.S., MAGIC and VERITAS. CTA is expected to discover hundreds of new TeV gammaray sources, allowing it to significantly advance our understanding of the origin of cosmic rays, to probe much larger distances in the universe, and to search for WIMP dark matter with unprecedented sensitivity in TeV mass range. The development of CTA is being carried out by a worldwide consortium of scientists from 32 countries. Consortium scientists have developed the core scientific programme of CTA and institutes of the Consortium are expected to provide the bulk of the CTA components. The construction of CTA is overseen by the CTA Observatory that will in the future manage observatory operations, the guest observer programme, and data dissemination. This talk will review the scientific motivation for CTA, focusing on the key science projects that form the core programme of research. The talk will outline the design of CTA, including the science drivers, overall concept, performance optimization, and array layouts. The current status of CTA, including sites, prototype telescope progress, and steps forward will also be described.
Keywords: CTA, next-generation gamma-ray observatory, gamma rays
Published in RUNG: 16.02.2018; Views: 3924; Downloads: 140
Full text (1,35 MB)

Abstract: Pomemben dejavnik pri kakovosti vina ter posledično tudi pri uspešni prodaji je stabilnost vina v steklenici, kajti v nasprotnem primeru pride do slabega ugleda vinarja in tudi zavračanja proizvoda na trgu. Beljakovinsko stabilnost vina lahko dosežemo na več načinov, ki pa so odvisni od same tehnologije in tudi trendov na vinskem trgu. V sklopu diplomske naloge smo preučevali vpliv uporabe štirih različnih bentonitov na kemijske in senzorične lastnosti vina sorte Rebula. Vino smo pred stekleničenjem tretirali z različnimi komercialno dostopnimi bentoniti in stekleničena vina kemijsko ter senzorično ovrednotili. Poleg določanja osnovnih kemijskih parametrov smo spektrofotometrično določili vsebnost skupnih fenolov in barve vina. S pomočjo encimskih kitov smo določili tudi vsebnost vinske, jabolčne in mlečne kisline v stekleničenih vinih. Rezultati našega poskusa kažejo, da je uporaba različnih bentonitov vplivala tako na kemijske kot tudi na senzorične lastnosti vina. V vinih tretiranih z bentonitom smo zaznali rahel trend nižjih vsebnosti alkohola ter skupnih titrabilnih in hlapnih kislin. Obenem pa smo zaznali tudi trende povečanja parametrov, kot je barva vina (absorbanca pri 420 nm) in vsebnosti skupnih fenolov primerjavi s kontrolnim – netretiranim vzorcem. Senzorična ocena tretiranih vin je nakazala trend siromašenja sadnih not pri vseh uporabljenih bentonitih, v določenih primerih pa, nasprotno, pozitivne vplive na zaznane cvetlične in rastlinske note. Rezultati so tako pokazali, da vrsta bentonita različno vpliva na senzorične lastnosti vina Rebula.
Keywords: vino Rebula, belo vino, bentonit, kemijski parametri vina, senzorične lastnosti vina
Published in RUNG: 13.02.2018; Views: 6493; Downloads: 266
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Keywords: Srpsko-hrvatski objasnidbeni rječnik Lingvistika Normativizam
Published in RUNG: 13.02.2018; Views: 3008; Downloads: 171
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Keywords: srpskohrvatski nomativizam srpski
Published in RUNG: 13.02.2018; Views: 2764; Downloads: 151
Full text (3,14 MB)

Keywords: srpskohrvatski jezik normativnost hrvatski srpski ćirilica latinica
Published in RUNG: 13.02.2018; Views: 3236; Downloads: 0
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