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UPORABA ENOTE HELIKOPTERSKE NUJNE MEDICINSKE POMOČI PRI OBRAVNAVI BOLNIKOV Z AKUTNIM KORONARNIM SINDROMOM
Gorazd Bregant, 2009, diplomsko delo

Opis: V diplomskem delu smo predstavili enoto HNMP v Sloveniji, njeno delovanje in zgodovino. Obravnavali smo učinkovost njenega delovanja na vzorcu 252 bolnikov z akutnim koronarnim sindromom, ki jih je enota oskrbela po principih sodobnih smernic oskrbe takšnih bolnikov in prepeljala v prvih petih letih delovanja službe (16.7.2003 — 16.7.2008). Uporabili smo deskriptivno metodo s študijem literature za področje AKS. Uporabili smo retrospektivno metodo (študija izpolnjenih protokolov intervencij). Podatke smo analizirali (grafi). Prepeljanih je bilo 252 bolnikov z AKS, od tega 139 (55,15%) bolnikov z STEMI, 10 bolnikov (3.96%) z nestabilno angino pektoris, in 12 bolnikov (4,76l%) z NSTEMI. Za 91 bolnikov (36,11%) se zdravniki niso natančno opredelili o vodilni diagnozi. Ugotovili smo skupno število prepeljanih bolnikov in razloge za intervencijo, izračunali povprečne odzivne čase enote HNMP glede na prevoznika, skupne povprečne čase od klica do prihoda do bolnika, čas od klica do prihoda z bolnikom v bolnišnico ter čas od pristanka na pristajališču Roška do prihoda v bolnišnico z reševalnim vozilom. Na zemljevidu Slovenije smo grafično prikazali kraje posredovanja enote HNMP. Preučevali smo oskrbo bolnikov z akutnim koronarnim sindromom. Ugotovili smo, da nudi služba HNMP dobro oskrbo bolnikom, da so kadri enote na visokem nivoju, da je oprema, ki jo uporabljajo ustrezna in sodobna, in da služba HNMP skrbi za stalno dodatno izobraževanje svojega kadra. Ugotovili smo tudi pomanjkljivosti pri umeščenosti službe HNMP v Sloveniji, omejenost na dnevni čas delovanja, omejen način aktivacije, dolgi časi aktivacije in do prihoda bolnika v zdravstveno ustanovo, izguba časa zaradi neurejenega helioporta v Univerzitetnem kliničnem centru Ljubljana in neurejenega dispečerstva v zdravstvu. Ugotovili smo, da enota nima stalne posadke prevoznika, da se dnevno menja tip helikopterja s katerim posreduje, da so vsi helikopterji nenamenski in omejeno uporabni, in da ena enota v Sloveniji ni dovolj učinkovita za vse prebivalce Slovenije.
Ključne besede: - AKS (akutni koronarni sindrom) - AVPU (alert, verbal, pain, unresponsive) - CIIM (Center za intenzivno interno medicino) - EKG (elektrokardiogram) - ERC (European Resuscitation Council) - GCS (Glasgow coma scale) - GRZS (Gorska reševalna zveza Slovenije) - HEMS (Helicopter emergency medical service) - HNMP (Helikopterska nujna medicinska pomoč) - IPP (Internistična prva pomoč) - LKB (levokračni blok) - LPE (Letalska policijska enota) - MONA (morfij, kisik, nitroglicerin, aspirin) - NAP (
Objavljeno: 15.07.2009; Ogledov: 2812; Prenosov: 403
.pdf Celotno besedilo (17,00 MB)

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Influence of water scale on thermal flow losses of domestic appliances
Danijela Urbancl, Darko Goričanec, 2007, izvirni znanstveni članek

Opis: Research results of how the precipitated water scale on heaters of small domestic appliances influences the consumption of electricity are presented. It shows that the majority of water scale samples are composed of aragonite, calcite and dolomite and that those components have an extraordinary low thermal conductivity. Also, the results show that at 2 mm thick deposit, depending on the chemical composition of water scale, the thermal flow is reduced for 10% to 40%; consequently, the consumption of electricity significantly increases.
Ključne besede: electricity, heat transfer, heat flow, heat exchanger, water scale
Objavljeno: 31.05.2012; Ogledov: 1147; Prenosov: 41
URL Povezava na celotno besedilo

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Supercritical fluid extraction of chammomile flower head flowers: comparison with conventional extraction, kinetics and scale-up
Petra Kotnik, Mojca Škerget, Željko Knez, 2007, objavljeni znanstveni prispevek na konferenci

Opis: Supercritical fluid extraction of chamomile flower heads was performed on semicontinuous extraction apparatus in the lab scale using carbon dioxide as solvent. The results of high pressure experiments were compared with those obtained with Soxhlet extraction, steam distillation and maceration. The obtained extracts were analysed by HPLC on ?-bisabolol, matricine and chamazulene content and by gravimetrical method on essential oil and waxes content. The highest content of active components in extracts and highest extraction yield were obtained using SFE at 250 bar and 40 °C. At this extraction conditions the two step separation was used to optimize the separation of essential oil from unwanted components. Dynamic behaviour of theSFE with single step separation runs were analysed using two mathematical models for describing the constant rate period and subsequent falling rate period. Based on the experimental data, external mass transfer coefficient, diffusion coefficient and diffusivity in solid phase were estimated. Results showed acceptable agreement of calculated and experimental data. Based on theparameters determined in the lab scale, the extraction process was successfully transferred to pilot scale.
Ključne besede: chemical processing, high pressure technology, supercritical extraction, chamomile, matricine, chamazulen, scale-up
Objavljeno: 31.05.2012; Ogledov: 1050; Prenosov: 18
URL Povezava na celotno besedilo

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Simulation of line scale contamination in calibration uncertainty model
Marjan Družovec, Bojan Ačko, Andrej Godina, Tatjana Welzer-Družovec, 2008, izvirni znanstveni članek

Opis: Precise calibration of quartz line scales is very important for assuring traceability of microscopic measurements. Very significant influence in calibration uncertainty budget is represented by uncertainty of line centre detection. Line centre is usually detected through video signal processing using different types of algorithms. This paper is presenting calibration procedure that was developed in the Laboratory for Production Measurement at the Faculty of Mechanical Engineering in Maribor. It is focused in uncertainty analysis and especially in the influence of line scale contamination on determination of line centre position. Different types of line scale contamination like dirt spots, scratches, line edge incorrectness, and line intensity were simulated in order to test the ability of the line centre detection algorithm to eliminate such influences from the measurement results.
Ključne besede: line scale, calibration, uncertainty, video-positioning system, simulation
Objavljeno: 31.05.2012; Ogledov: 932; Prenosov: 26
URL Povezava na celotno besedilo

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Magnetic water treatment for scale control in heating and alkaline conditions
Viljem Kozic, Anton Hamler, Irena Ban, Lucija Črepinšek-Lipuš, 2010, izvirni znanstveni članek

Opis: Magnetic water treatment (MWT), an alternative solution for scale control, is discussed with emphasis on the construction of the magnetic devices and the mechanism of MWT influence on the scale formation. Two applications in high-temperature and high-pH conditions are presented. The treatment noticeably reduced the scale thickness on the heating spiral and removed preciously precipitated scale from hot tap-water outlet pipe; on the walls in the zone with heated alkaline water, instead of hard scale, only thin, brittle coating was formed. The morphology analyses showed the acceleration of aragonite nucleation and raised formation of fine suspended particles.
Ključne besede: scale control, magnetic sater treatment, crystallization
Objavljeno: 31.05.2012; Ogledov: 1353; Prenosov: 50
URL Povezava na celotno besedilo

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Influence of magnetic field on the aragonite precipitation
Lucija Črepinšek-Lipuš, Danijela Urbancl, 2007, izvirni znanstveni članek

Opis: Many laboratory investigations of magnetic water treatment (MWT) for scale control explained the formation of less compact scales by raised portion of aragonite, which is needle-like and less adhesive than rhombohedral calcite crystals, while our experiment was conducted with tap water, which contains Mg+2 and Fe+2 ions in concentrations exceeding thresholds for calcite inhibition, common for major tap waters. MWT efficiency was evaluated by amounts of scale precipitated in boilers and pipes during three-weeks run of two parallel experimental lines-one with and another without magnetic treatment. All scales were identified by X-ray diffractometer to be aragonite,but in the case of magnetic treatment, scales occurred in much smaller amounts: the scale on heating copper-pipe spiral was 2.5-times thinnerdue to MWT and in zinc-coated steel pipe occurred as very thin powder-like coating, while in the line without the treatment abundant hard lining was formed. The scalesć morphology was observed by scanning electron microscope: the husks from both lines consisted of parallel distributed needles, but these crystals were about four times thinner in the case of MWT. The present work demonstrates that hard scale deposits can form even under conditions where aragonite precipitates predominantly, and that MWT can also affect the crystallization of this polymorph in a manner conducive to scaling control.
Ključne besede: water, magnetic water treatment, scale, aragonite, cristallization, water supply pipes
Objavljeno: 01.06.2012; Ogledov: 1098; Prenosov: 33
URL Povezava na celotno besedilo

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Oskrba poškodovanca s poškodbo glave in vratne hrbtenice
Gregor Janžič, 2012, diplomsko delo

Opis: V diplomski nalogi smo želeli ugotoviti ali je poznavanje oskrbe poškodovanca s poškodbo glave in vratne hrbtenice med slovenskimi reševalnimi službami skladno z mednarodnimi smernicami. Prav tako smo želeli predstavili dela in naloge reševalcev pri oskrbi poškodovancev s poškodbami glave in vratne hrbtenice in pa tudi predstaviti različne metode ugotavljanja zavesti in pripomočkov, ki se trenutno najpogosteje uporabljajo na terenu. Diplomska naloga je sestavljena iz teoretičnega in empiričnega dela. V teoretičnem delu so predstavljene poškodbe glave in vratne hrbtenice, metode ocenjevanja zavesti in metode oskrbe dihalne poti. V drugem delu smo uporabili anketni vprašalnik, sestavljen v namen konkretne raziskave, s katerim smo anketirali 62 zaposlenih (tehnikov zdravstvene nege in diplomiranih zdravstvenikov ter diplomiranih medicinskih sester) v enotah nujne medicinske pomoči iz Maribora, Celja, Lenarta in Gornje Radgone. Z raziskavo smo želeli ugotoviti kako pogosto se anketiranci srečujejo s poškodbami glave in vratne hrbtenice, kakšne vrste imobilizacije uporabljajo na terenu, kako ocenjujejo svoje znanje s področja poškodb glave in vratne hrbtenice, na kak način se izobražujejo na tem področju in pa poznavanje metod ugotavljanja zavesti. Z raziskavo smo dobili odgovor na zastavljeno raziskovalno vprašanje, in sicer je poznavanje oskrbe poškodovanca s poškodbo glave in vratne hrbtenice med slovenskimi reševalnimi službami skladno z mednarodnimi smernicami, hkrati pa smo ugotovili na katerih področjih bi anketiranci lahko dopolnili svoje znanje o poškodbah glave in vratne hrbtenice.
Ključne besede: nujna medicinska pomoč, poškodbe glave, poškodbe vratne hrbtenice, metode ocenjevanja zavesti, Glasgow coma scale, AVPU, Revised trauma score (RTS).
Objavljeno: 09.08.2012; Ogledov: 2760; Prenosov: 500
.pdf Celotno besedilo (3,02 MB)

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