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Št. zadetkov: 9
Mikročrpalka na principu termoviskoznega črpanja
Luka Pirker, Natan Osterman
Magistrsko delo
Oznake: mehanika tekočin;mikrofluidika;mikročrpalka;fotolitografija;termoforeza;termoviskozno črpanje;
Mikročrpalka na principu termoviskoznega črpanja
Leto: 2015 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Electrical, optical and structural properties of low-dimensional materials based on tungsten
Luka Pirker, Maja Remškar
Doktorska disertacija
Oznake: nanomateriali;karakterizacija;multistehiometrični kristali;
Substoichiometric tungsten oxides are an interesting class of materials, where defects form periodic structures. These defects are called crystallographic shear (CS) planes and depending on the type of the CS plane and the distance between them, they can form tungsten suboxides with different stoich ...
Leto: 2020 Vir: Fakulteta za matematiko in fiziko (UL FMF)
ǂThe ǂpotential of macroporous silica-nanocrystalline cellulose combination for formulating dry emulsion systems with improved flow properties
Mitja Pohlen, Luka Pirker, Rok Dreu
Izvirni znanstveni članek
Oznake: suhe emulzije;nanokristalinska celuoza;sušenje z razprševanjem;makroporozni kremen;pretočnost;simvastatin;dry emulsion;lipid-based drug delivery systems;nanocrystalline cellulose;macroporous silica;spray drying;flowability;DoE;
The objective of this study was to explore the possible use of a new combination of two excipients, i.e., nanocrystalline cellulose (NCC) and macroporous silica (MS), as matrix materials for the compounding of dry emulsion systems and the effects these two excipients have on the characteristics of d ...
Leto: 2021 Vir: Fakulteta za farmacijo (UL FFA)
Silicon crystallinity control during laser direct microstructuring with bursts of picosecond pulses
Jaka Mur, Luka Pirker, Natan Osterman, Rok Petkovšek
Izvirni znanstveni članek
Oznake: silicon;crystallinity;light-matter interaction;laser processing;direct laser microstructuring;bursts of pulses;picosecond pulses;
Laser ablation and modification using bursts of picosecond pulses and a tightly focused laser beam are used to manufacture structures in the bulk silicon. We demonstrate precise control of the surface crystallinity as well as the structure depth and topography of the processed areas, achieving homog ...
Leto: 2017 Vir: Fakulteta za strojništvo (UL FS)
Size- and time-dependent aerosol removal from a protective box during simulated intubation and extubation procedures
Luka Pirker, Metod Čebašek, Matej Serdinšek, Maja Remškar
Izvirni znanstveni članek
Oznake: aerosol-generating procedure;COVID-19;extubation;intubation;protective box;
Because the SARS-CoV-2 virus primarily spreads through droplets and aerosols, a protective box could provide adequate protection by shielding medical professionals during the intubation and extubation procedures from generated droplets and aerosols. In this study, size- and timedependent aerosol con ...
Leto: 2021 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Experimental dataset
Luka Drinovec, Uroš Jagodič, Luka Pirker, Miha Škarabot, Mario Kurtjak, Kristijan Vidović, L. Ferrero, Bradley Visser, Jannis Röhrbein, Griša Močnik
Raziskovalni podatki
Oznake: photothermal interferometer;aerosol light absorption coefficient;
Experimental dataset - A dual-wavelength photothermal aerosol absorption monitor: design, calibration and performance
Leto: 2022 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Single-layer and double-layer filtration materials based on polyvinylidene fluoride-co-hexafluoropropylene nanofibers coated on melamine microfibers
Tilen Potisk, Maja Remškar, Luka Pirker, Gregor Filipič, Igor Mihelič, Marjan Ješelnik, Urban Čoko, Miha Ravnik
Izvirni znanstveni članek
Oznake: nanovlakna;aerosoli;filtracija;nanofibers;aerosols;filtration;
In this work, we demonstrate selected optimization changes in the simple design of filtration masks to increase particle removal efficiency (PRE) and filter quality factor by combining experiments and numerical modeling. In particular, we focus on single-layer filters fabricated from uniform thickne ...
Leto: 2023 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Sterilization of polypropylene membranes of facepiece respirators by ionizing radiation
Luka Pirker, Anja Pogačnik Krajnc, Jan Malec, Vladimir Radulović, Anton Gradišek, Andreja Jelen, Maja Remškar, Igor B. Mekjavić, Janez Kovač, Miran Mozetič, Luka Snoj
Izvirni znanstveni članek
Oznake: jedrska fizika;ionizirajoče sevanje;osebna zaščitna oprema;respiratorji;sterilizacija;COVID-19;SARS-CoV-2;polipropilenska membrana;personal protection equipment;respirators;sterilization;ionizing radiation;polypropylen membrane;
Ionizing radiation has been identified as an option for sterilization of disposable filtering facepiece respirators in situations where the production of the respirators cannot keep up with demand. Gamma radiation and high energy electrons penetrate deeply into the material and can be used to steril ...
Leto: 2021 Vir: Digitalni repozitorij raziskovalnih organizacij Slovenije
ǂA ǂdual-wavelength photothermal aerosol absorption monitor
Luka Drinovec, Uroš Jagodič, Luka Pirker, Miha Škarabot, Mario Kurtjak, Kristijan Vidović, L. Ferrero, Bradley Visser, Jannis Röhrbein, Ernest Weingartner, Daniel M. Kalbermatter, Konstantina Vasilatou, Griša Močnik
Izvirni znanstveni članek
Oznake: kemija;aerosoli;meritve;modeliranje;kalibriranje;
There exists a lack of aerosol absorption measurement techniques with low uncertainties and without artefacts. We have developed the two-wavelength Photothermal Aerosol Absorption Monitor (PTAAM-2λ), which measures the aerosol absorption coefficient at 532 and 1064 nm. Here we describe its design, c ...
Leto: 2022 Vir: Univerza v Novi Gorici (UNG)
Št. zadetkov: 9
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