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292. Chemical and structural investigation of the cobalt phthalocyanineMatija Stupar, 2015, master's thesis Abstract: In the last two decades, studies on organic molecules mimicking substances of fundamental importance in nature, like chlorophyll or hemoglobin, have attracted researchers’ attention. These molecules are building blocks for a family of materials also referred to as “organic semiconductors”. Such compounds can be implemented in numerous applications, ranging from data-storage to light harvesting. Some of their fundamental advantages include low cost, light weight, relatively easy engineering and mechanical flexibility, compatible with bending plastic substrates.
In this thesis work we investigated the chemical, structural and electronic properties of cobalt phthalocyanines (CoPc). These molecules have promising applications in the field of magnetic data storage and spintronics in general, due to the ferromagnetic properties of the cobalt atom. Several techniques like photoemission core-level spectroscopy and valence band spectroscopy, together with X-ray absorption, have been used in order to determine the CoPc properties in gaseous phase, i.e. in the absence of interaction with the surrounding environment.
Another set of experiments was devoted to the commissioning of the CITIUS time-resolved photoemission setup, that will be used in future studies of CoPc molecules on surfaces.
Keywords: Cobalt phthalocyanine (CoPc), photoemission spectroscopy (PES), X-ray absorption spectroscopy (XAS), synchrotron radiation, laser, high order harmonic generation (HHG), time resolved spectroscopy
Published in RUNG: 29.09.2015; Views: 8958; Downloads: 280
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297. Oskrba s pitno vodo v Zgornji Bohinjski dolini in na planinskih postojankah, ki jih naselja obsegajo : diplomsko deloTamara Dobravec, 2015, undergraduate thesis Abstract: Na obravnavanem območju Zgornje Bohinjske doline (Jereka, Bohinjska Češnjica, Srednja vas, Studor in Stara Fužina) in na planinskih postojankah, ki jih naselja katastrsko obsegajo, javne oskrbe s pitno vodo z izjemo naselja Stare Fužine ni. V Bohinjski Češnjici, Srednji vasi in Studoru so prebivalci priključeni na mreže lokalnih vodovodov, ki so v upravljanju vodovodnih zadrug, v Jereki pa so prebivalci odvisni od lastnih virov pitne vode. Dezinficiranje se redno uporablja le na dveh zajetjih in sicer na javnemu zajetju Voje, ki oskrbuje Staro Fužino in zajetju Ribnica, ki oskrbuje Srednjo vas. V nalogi sem s pomočjo obstoječih analiz, anketiranja in terenskega pregleda območij raziskala način oskrbe in mikrobiološko ter fizikalno-kemijsko kakovost pitne vode v naseljih in na planinskih postojankah. Določila sem rabo prostora na napajalnih območjih in sklepala na potencialne onesnaževalce. Raziskava je pokazala, da je kakovost vode v naseljih razmeroma dobra, občasno prihaja do mikrobiološkega onesnaženja, katerega vzrok je pašništvo v zaledju ali neurejenost odpadnih voda. Zaradi neprimerne lege, zgradbe in nezavarovanosti zajetja, voda ni pitna skoraj v polovici obravnavanih planinskih postojank. Ugotovila sem, da so vodovarstvena območja določena samo za zajetje Voje in bi bila nujna določitev še za ostala zajetja, saj so ključnega pomena za ohranjanje kakovosti pitne vode.
Keywords: pitna voda, javni vodovodi, planinske postojanke, oskrba s pitno vodo, zajetja, diplomske naloge
Published in RUNG: 27.03.2015; Views: 5959; Downloads: 463
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