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84. Določitev parametrov procesa anaerobno-aerobnega čiščenja odpadne vode in hidrolize odpadnega biološkega blata VIPAP VIDEM KRŠKO : (2. faza- pilotni testi, DIP odpadna voda)Gregor Drago Zupančič, Aleksandra Račič Kozmus, Nina Novak, Aljaž Klasinc, 2013, final research report Keywords: Anaerobna obdelava odpadne vode, Blato iz čistilnih naprav, Deinking, Papirniška odpadna voda, Termo-kemijska hidroliza
Published in RUNG: 21.10.2016; Views: 6368; Downloads: 0
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85. Anaerobic digestion of brewery spent grain as a mono-substrate in a two-stage anaerobic digestion using solid-state digestion reactor and granulated biomass reactorMario Panjicko, Gregor Drago Zupančič, Romana Marinšek Logar, Marina Tišma, Bruno Zelić, 2016, published scientific conference contribution (invited lecture) Abstract: Anaerobic digestion of brewery spent grain as a mono-substrate was studied. Anaerobic digestion was phase separated in solid state anaerobic digestion reactor, where mostly microbiological hydrolysis and acidogenesis and granular biomass reactor where mostly methanogenesis was performed. The overall process exhibited total solids degradation efficiency between 73.6 and 80.4%. Average specific biogas production was 424±36 L/kg, whereas biomethane production was 230±34 L/kg of brewery spent grain total solids. Granular biomass after adaptation exhibited stabile operation at C-N ratios as low as 0.2 – 0.3, which is rare in anaerobic digestion. P-cresol as a degradation product was present in concentrations up to 45 mg/L and during the process successfully degraded. The excellent adaptability of the granular biomass is confirmed by 67% shift in bacterial and a 32% shift in archaeal community structure in granular biomass reactor after 198 days of successful operation.
Keywords: Anaerobic digestion, biogas production, brewery spent grain, microbial biomass, p-cresol degradation, solid state anaerobic digestion
Published in RUNG: 21.10.2016; Views: 7545; Downloads: 0
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86. Detection of gravitational waves : Diploma thesisGregor Mrak, 2016, undergraduate thesis Abstract: This report mainly focuses on the first two detections of gravitational waves
(GW). At the beginning of the thesis the historical background of GW explorations
is discussed by pointing out some arguments and researchers
that were essential for the progress. Continuing with the derivation based
on the theory of general relativity, in order to express where certain properties
derive. In the main part of the report, the subject of interest becomes
Laser interferometer gravitational-wave observatory (LIGO), beginning
with the problems occurring on the way to detection, describing different
noise sources one by one. After pointing out the problems, solutions
are discussed, namely the technological advances made to lower the background
noise as much as possible. The chapter (4) points out different parts
of the detector which are implemented to produce a clearer signal. As only
physical noise reduction methods are not enough, digital signal processing
algorithms are mentioned as well which are used to analyze the data. Subsequently
the required theoretical knowledge is given, so the main part ends
with the analysis of actual data taken from LIGO’s public release for both
GW150914 and GW151226 events (first and second official detections). In
the conclusion of the report a brief descriptions of various detectors besides
Ligo are given and some insight of the future detectors that are planned to
be built.
Keywords: Gravitational waves, Ligo, Binary black hole merger, gravitational
wave interferometry
Published in RUNG: 27.09.2016; Views: 8470; Downloads: 326
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89. Stare sadne sorte na Goriškem 1-2Zoran Božič, Gregor Božič, Jana Kocjan, 2013, professional monograph Abstract: Prvi del publikacije po uvodu, ki poudarja pomen ohranjanja in širjenja starih sadnih sort (Goriška je bila v času Avstro-Ogrske sadjarski raj imperija), prinaša intrevju z Brunom Podveršičem, pionirjem tovrstnega raziskovanja. Po predstavitvi švicarske organizacije Pro Specie Rara sledi opis zgodnjih in poletnih sort: češenj, marelic, hrušk, breskev in drena.
Keywords: agronomija, sadjarstvo, Goriška, ekologija, kulturna dediščina
Published in RUNG: 24.05.2016; Views: 6691; Downloads: 171
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90. Model prehoda v trajnostno krožno ekonomijo v občini KočevjeValter Pisk, 2016, master's thesis Abstract: V magistrskem delu je predstavljen model prehoda v trajnostno krožno ekonomijo v občini Kočevje kot podlaga za izboljšanje gospodarskih in socialnih razmer v občini. Koncept krožnega gospodarstva temelji na načelu identifikacije in čim večjega izkoriščanja lokalnih potencialov ter dviga dodane vrednosti v lokalnem okolju z vsemi multiplikativnimi učinki, ki pri tem nastanejo. Največji razvojni potencial občine Kočevje predstavlja gozd, ki še ni izkoriščen v zadostni meri. Koncept temelji na izhodišču, da z območja občine ne odide noben hlod neobdelan in da se lesna biomasa izkoristi v največji možni meri. To vključuje celovito, trajnostno gospodarjenje z gozdom, sečnjo in spravilo hlodov ter pripravo lesa za proizvode z višjo dodano vrednostjo ob istočasni izrabi manjvrednega lesa in ostankov za proizvodnjo električne in toplotne energije. Celovitost trajnostne verige lesa zahteva vključitev socialnega podjetništva, izobraževanje kadrov, dodatno usposabljanje zaposlenih in ohranjanje obstoječih oziroma ustvarjanje novih zelenih delovnih mest.
Osrednji del modela predstavlja postavitev centra predelave lesa za celovito ravnanje z lesno biomaso. Krožni proizvodni proces, začet z zbiranjem lesne biomase z vsemi elementi, se nadaljuje z žagalno linijo za proizvodnjo žaganega lesa in se sklene s sušilnicami, ki deskam povišajo dodano vrednost, ter kogeneracijskim sistemom s procesom uplinjanja lesne biomase za proizvodnjo električne in toplotne energije kot sekundarnih produktov. Učinki modela so prikazani v kontekstu ekonomskega, socialnega in okoljskega vidika. Nedvomne okoljske učinke predlaganega modela dopolnjujeta oceni o več kot 4 milijonih EUR dobička in 45 novih zelenih delovnih mestih v prvih 15 letih obratovanja. Predlagani koncept je primer racionalne implementacije dolgoročne razvojne strategije Slovenije in ponuja priložnost za razvoj lokalnih skupnosti, oživitev lesnopredelovalne industrije in dvig konkurenčnosti gospodarstva v Sloveniji.
Keywords: energija, kogeneracija, krožna ekonomija, lesna biomasa, lokalna skupnost, potencial, trajnost
Published in RUNG: 12.05.2016; Views: 10955; Downloads: 358
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