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21.
Microstructural investigation of the heat-affected zone of simulated welded joint of P91 steel
Tomaž Vuherer, Marko Dunđer, Ljubica Milović, Milorad Zrilić, Ivan Samardžić, 2013, original scientific article

Abstract: In the process of testing real components exposed to elevated temperature, it is not possible to neglect cracks. The most significant cracks can be induced by welding, which is applied for joining of structural components. Pressure equipment in service is also exposed to high pressure and high stresses. Materials for their manufacturing are designed to resist high stressat elevated temperature, and to meet requirements regarding creep resistance. The objective of this study is to investigate microstructure of different regions of the heat affected zone in T/P91 steels by using thermal simulation instead of welding.
Keywords: welded joints, microstructures, P91 steel, heat-affected zone, heat treatment
Published: 10.07.2015; Views: 353; Downloads: 77
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23.
Multivariate analysis and chemometric characterisation of textile wastewater streams
Darja Kavšek, Tina Jerič, Alenka Majcen Le Marechal, Simona Vajnhandl, Adriána Bednárová, Darinka Brodnjak-Vončina, 2013, original scientific article

Abstract: The aim of this work was to design a quick and reliable method for the evaluation and classification of wastewater streams into treatable and non-treatable effluents for reuse/recycling. Different chemometric methods were used for this purpose handling the enormous amount of data, and additionally to find any hidden information, which would increase our knowledge and improve the classification. The data obtained from the processes description, together with the analytical results of measured parameters' characterising the wastewater of a particular process, enabled us to build a fast-decision model for separating different textile wastewater outlets. Altogether 49 wastewater samples from the textile finishing company were analysed, and 19 different physical chemical measurements were performed for each of them. The resulting classification model was aimed at an automated decision about the choice of treatment technologies or a prediction about the reusability of wastewaters within any textile finishing or other company having similar characteristics of wastewater streams.
Keywords: textile finishing wastewater, chemometrics, multivariate data analysis, wastewater treatment
Published: 10.07.2015; Views: 882; Downloads: 23
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24.
Wear resistance of coke-crushing hammers
Franc Zupanič, 2013, original scientific article

Abstract: This work investigated several methods for improving the wear resistance of the 42CrMo4 tool steel used for coke-crushing hammers. The methods embraced heat treatment for obtaining different combinations of strength and ductility of the bulk steel, and surface-engineering processes comprising TiN thin-film deposition using magnetron-sputtering, nitriding and WC/Ni weld deposit surfaced by gas metal arc (GMA) method. The wear-resistance was tested under industrial conditions. Oil quenching and tempering significantly increased the wear resistance in comparison to the as-received condition. Conversely, nitriding and TiN-hard coating did not show any significant improvement. WC/Ni weld deposit provided the best protection against wear, which was caused predominantly by hard abrasive particles present in the coke.
Keywords: zvarni spoj, mikrostrukture, obrabna odpornost, toplotna obdelava, obraba, kladivo, weld deposition, microstructure, impact coke crusher, heat treatment, wear, hammer
Published: 10.07.2015; Views: 677; Downloads: 39
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25.
Prenova bolnišničnega informacijskega sistema “IS VZE-MEDIC”
Mitja Sodja, 2015, bachelor thesis/paper

Abstract: Tema diplomskega dela je prenova bolnišničnega informacijskega sistema z nazivom IS VZE MEDIC Vojaško zdravstvene enote. V prvem delu je opisan sistem in predstavljene specifičnosti povezovanja z ostalimi informacijskimi sistemi znotraj zaprtega intranetnega omrežja. V drugem delu je opisana interoperabilnost bolnišničnega informacijskega sistema z različnimi sistemi v zvezi NATO za povezovanje doma in v tujini. Preučena je bila različna domača in tuja literatura, dokumenti organizacije in predpisani standardi zveze NATO (STANAG – angleško Standardization Agreement).
Keywords: bolnišnični informacijski sistem, interoperabilnost - povezljivost sistemov, vojaško zdravstvo, zveza NATO, lahka premična bolnišnica Role 2 LM MTF (Light Manoeuvre, Medical Treatment Facilities)
Published: 16.09.2015; Views: 450; Downloads: 100
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26.
InVance sling postopek za zdravljenje moške stresne urinske inkontinence
Dejan Bratuš, Gregor Hlebič, 2011, original scientific article

Abstract: Namen: Stresna inkontinenca urina je pri moških relativno redka in se pojavi kot posledica večjega operativnega posega, drugi vzroki stresne inkontinence urina se pri moških pojavljajo izjemoma. Ne glede na relativno majhno število prizadetih takšno uhajanje urina obolelim predstavlja velik medicinski in tudi socialni problem, saj se odpovejo normalnim dnevnim aktivnostim in se vse bolj omejujejo na domače okolje. Metode: Ena izmed možnosti zdravljenja stresne urinske inkontinence pri moških je tako imenovani InVance Male Sling sistem. Gre za minimalno invazivno kirurško metodo, pri kateri se na spodnjo stran pubične kosti z vijaki pritrdi poliesterska mrežica, ki tesni sečnico. V principu gre za sling operacijo. Rezultati: Na našem oddelku smo med letoma 2004 in 2007 z omenjeno prometodo zdravili osemintrideset bolnikov. Pri štiriintridesetih je šlo za stanje po radikalni odstranitvi prostate, pri štirih pa za stanje po transuretralni resekciji prostate. Čas spremljanja po posegu je pri vseh daljši od dveh let. Osemindvajset bolnikov navaja popolno ozdravitev (brez uporabe predlog), šest bolnikov navaja blago stresno inkontinenco (ena predloga dnevno), pri štirih bolnikih pa ni prišlo do izboljšanja. Pri nobenem bolniku nismo opažali zastoja urina ali na novo nastalih težav pri uriniranju, smo pa pri treh bolnikih srečali podaljšano gnojno izcejanje iz postoperativne rane in še pri treh kasno zavrnitev mrežice, zato smo pri teh bolnikih morali mrežico odstraniti. Imeli smo tudi bolnika z erozijo sečnice osem mesecev po posegu. Zaključek: Glede na naše rezultate lahko zapišemo, da je Invance sling operacija uspešna metoda zdravljenja moške stresne inkontinence urina z minimalnimi pooperativnimi zapleti.
Keywords: male urinary stress incontinence, sling procedure, minimally invasive procedure, treatment results, postoperative complications
Published: 10.07.2015; Views: 712; Downloads: 17
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28.
Water pre-treatment process in food industry
Marjana Simonič, 2009, original scientific article

Keywords: drinking water, food industry, pre-treatment, membrane
Published: 10.07.2015; Views: 567; Downloads: 10
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29.
The influence of physico-chemical parameters on water scale precipitation on washing machines' heaters
Danijela Urbancl, Darko Goričanec, Jurij Krope, 2007, professional article

Abstract: The paper presents the results of analysis of physico - chemical parameters influence on the intensity of water scale precipitation on washing machines heaters. Washing machines of the same producer were, to this end, modified to an endless cycle of washing with the same amount of cotton fabric at the same conditions. On the basis of various experiments it was determined that water hardness, the amount of exceeded carbon dioxide, water turbulence around the heater, the amount of cotton fibres in water exceeded from fabrics, and heater specific heat strength have the key role in water scale building up in washing machines heaters.
Keywords: magnetic water treatment, magnetic hydrodynamics, water scale, calcium carbonate, scale prevention, washing machine, electrical heater
Published: 21.12.2015; Views: 642; Downloads: 40
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30.
Zastrupitev z etilenglikolom
Nina Hojs, Robert Ekart, Franc Svenšek, 2011, professional article

Abstract: Zastrupitve z etilenglikolom so dokaj redke. Etilenglikol je sam po sebi malo toksičen, hudo zastrupitev povzročajo predvsem njegovi presnovni produkti. Prikazani primer obravnava značilno klinično sliko (nevrološka, kardiopulmonalna in ledvična faza) in laboratorijske rezultate (povišana serumska osmolalnost, povišana osmolalna vrzel, metabolična acidoza s povišano anionsko vrzeljo, kristali kalcijevega oksalata v urinu) ob zastrupitvi z etilenglikolom. Hitra prepoznava je nujna, saj sta obolevnost in smrtnost po zastrupitvi visoki. Zdravljenje vključuje vzdrževanje dihalne poti, dihanja in krvnega obtoka, infuzijo bikarbonata, dajanje antidota (etanol, fomepizol), hemodializo, včasih tudi zdravljenje s kofaktorji presnove etilenglikola (tiamin, piridoksin, magnezij).
Keywords: Acid-Base Equilibrium, Acido-bazno ravnotežje, diagnosis, Diagnostika, Emergency Treatment, Ethylene Glycol, Etilenglikol, klinična slika, Nujno ukrepanje, Osmolar Concentration, Osmolarna koncentracija, poisoning, therapy, Zastrupitve, Zdravljenje
Published: 30.12.2015; Views: 1313; Downloads: 60
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