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2. Local meshless method for multi-phase termo-fluid problemsGregor Kosec, 2011, doctoral dissertation Found in: ključnih besedah
Summary of found: ...problemi, brezmrežne metode, kolokacija, multikvadriki, tok kapljevin, transport gibalne tekočine, taljenje, strjevanje, disertacije, ...
Keywords: večfizikalni problemi, brezmrežne metode, kolokacija, multikvadriki, tok kapljevin, transport gibalne tekočine, taljenje, strjevanje, disertacije
Published: 15.10.2013; Views: 4224; Downloads: 205
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3. Borze prevozov in tovorov na internetuDamjana Dolanc, 2011, undergraduate thesis Found in: ključnih besedah
Summary of found: ...diplomske naloge, logistika, transport, borze prevozov, borze tovorov, spletne aplikacije, ...
Keywords: diplomske naloge, logistika, transport, borze prevozov, borze tovorov, spletne aplikacije
Published: 15.10.2013; Views: 4496; Downloads: 351
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4. Zunanja oskrba notranjega transporta Iskra AvtoelektrikaMatej Frančeškin, 2011, undergraduate thesis Found in: ključnih besedah
Summary of found: ...diplomske naloge, podjetja, zunanja oskrba, operativni lizing, transport, ekonomska ocena, ...
Keywords: diplomske naloge, podjetja, zunanja oskrba, operativni lizing, transport, ekonomska ocena
Published: 15.10.2013; Views: 3482; Downloads: 346
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5. Gospodarjenje z opažnim materialom v gradbenem podjetjuIgor Medvešček, 2005, undergraduate thesis Abstract: Diplomska naloga se začenja z opredelitvijo logistike in njenega pomena v podjetju. Tu so predstavljene ključne točke, s katerimi skuša logistika čim racionalnejše reševati probleme v premagovanju prostora in časa. Nadaljuje se s predstavitvijo gradbenega podjetja, njegovega informacijskega sistema in opažnega materiala, ki ga podjetje uporablja pri gradnji. Sledi analiza logističnega poslovanja z opažnim materialom od njegovega naročila, prejema, skladiščenja, izdajanja, transporta in ponovno vračanja nazaj v skladišče. V zadnjem delu so predstavljene ugotovitve in predlagane rešitve nastalih problemov.
Found in: ključnih besedah
Summary of found: ...podjetje, informacijski sistem, opažni material, skladišče, nabava, transport, ...
Keywords: diplomske naloge, logistika, gradbeno podjetje, informacijski sistem, opažni material, skladišče, nabava, transport
Published: 15.10.2013; Views: 4908; Downloads: 770
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6. Electronic transport properties of graphene and graphene-related materialsSrinivasa Rao Pathipati, 2014, doctoral dissertation Found in: ključnih besedah
Keywords: grafen, reduciran grafenov oksid, transport naboja, čas preleta, organski tranzistor, adsorbati, dopiranje, zmesi, perileni, politiofeni, grafenski nanotrakovi, disertacije
Published: 22.01.2015; Views: 4006; Downloads: 249
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7. The impact of gravel extraction on hyporheic ecology: a case study of the Bača river (W Slovenia)Nataša Mori, 2008, doctoral dissertation Found in: ključnih besedah
Summary of found: ...matter, POM, fine sediment, ETS activity, electron transport system, sediments, Nematoda, Harpacticoida, Chironomidae, gravel extraction,...
Keywords: hyporheic invertebrate, Soča river, Bača river, hyporheic biota, benthic organisms, particulate organic matter, POM, fine sediment, ETS activity, electron transport system, sediments, Nematoda, Harpacticoida, Chironomidae, gravel extraction, environmental impact assessment
Published: 19.02.2015; Views: 4002; Downloads: 312
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8. Transport električnega naboja v organskih polprevodnikih, simulacija po metodi Monte CarloRobert Hudej, Gvido Bratina, Egon Pavlica, 2003, original scientific article Abstract: The electric-charge transport in organic semiconductors is essentially different to the transport in ordered inorganic crystals. The reason is in thelocalization of the energy states, which act as charge-carrier transport channels between molecules. Consequently, the determination of the basic transport parameters in organic materials is inherently more involved than in their inorganic counterparts. The analytical methods that are used to describe charge transport in inorganic materials are unsuitable, since they are based on the extended electronic energy structure. We report here on the simulation of charge transport in organic semiconductor thin films. The simulation is based on the Monte Carlo method and describes the charge-carrier transport within the framework of carrier hopping between the sites. We employed a Gaussian energy distribution of the hopping sites with disorder elements. The degree of disorder is characterized by the width of the Gaussian distribution and is measured in eV units. The results of the transport simulation in 3,4,9,10-perylenedianhydride tetracarboxylic acid (PTCDA) show that the photogenerated charge-carrier current depends on the film thickness, temperature and disorder degree. The simulated photocurrents have the same amplitude in thick films as in the thin films, but the overall shape of the I(t) curve is more dispersive in thin films. The charge-carrier mobility decreases with the increasing degree of disorder at a given temperature. The simulation of the photogenerated positive charge carriers current matches with the time-of-flight experiment in a glass/ITO/PTCDA(600 nm)/In heterostructure at room temperature and an applied bias voltage of 8 V.
Found in: ključnih besedah
Keywords: neurejeni kristali, metoda Monte Carlo, organski polprevodniki, transport naboja, PTCDA, tranzientne meritve
Published: 10.07.2015; Views: 4457; Downloads: 14
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9. The role of local potential minima on charge transport in thin organic semiconductor layersEgon Pavlica, Raveendra Babu Penumala, Bratina Gvido, 2016, original scientific article Abstract: We have performed a systematic study of dependence of time-resolved photocurrent on the point of charge excitation within the organic semiconductor channel formed by two coplanar metal electrodes. The results confirm that spatial variation of electric field between the electrodes crucially determines transport of photogenerated charge carriers through the organic layer. Time-of-flight measurements of photocurrent demonstrate that the transit time of photogenerated charge carrier packets drifting between the two electrodes decreases with increasing travelling distance. Such counterintuitive result cannot be reconciled with the spatial distribution of electric field between coplanar electrodes, alone. It is also in contrast to expected role of space-charge screening of external electric field. Supported by Monte Carlo simulations of hopping transport in disordered organic semiconductor layer, we submit that the space-charge screens the external electric field and captures slower charge carriers from the photogenerated charge carrier packet. The remaining faster carriers, exhibit velocity distribution with significantly higher mean value and shorter transit time.
Found in: ključnih besedah
Keywords: Charge transport, Organic semiconductors, Time of flight, Mobility, Traps
Published: 23.12.2016; Views: 3935; Downloads: 0
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