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Wyniki wyszukiwania dla: EPA
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The effect of high pressure on formation of volatile amines in minced meat of cod (Gadus morhua)
PublikacjaThe effects of high pressure at subzero temperature (193 MPa, at −20 °C) on inactivation of natural microflora of cod meat and degradation of trimethylamine oxide (TMAO) to trimethylamine (TMA) during refrigerated storage and to dimethylamine (DMA) and formaldehyde (FA) during frozen storage were investigated. The content of TMA, DMA and FA in cod meat did not change immediately after pressure treatment. During 40 days of frozen...
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Novel liquid chromatography method based on linear weighted regression for the fast determination of isoprostane isomers in plasma samples using sensitive tandem mass spectrometry detection
PublikacjaA simple, fast, sensitive and accurate methodology based on a LLE followed by liquid chromatography–tandem mass spectrometry for simultaneous determination of four regioisomers (8-iso prostaglandin F2α, 8-iso-15(R)-prostaglandin F2α, 11β-prostaglandin F2α, 15(R)-prostaglandin F2α) in routine analysis of human plasma samples was developed. Isoprostanes are stable products of arachidonic acid peroxidation and are regarded as the...
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Investigation on stability of mountainous EUPOS sites’ coordinates
PublikacjaThe paper concerns analysis of solutions obtained during common processing of data from GNSS permanent stations situated on mountainous terrain: the Western Carpathians, the Sudetes Mountains and adjacent areas. As the outcome daily and weekly solutions (ellipsoidal coordinates) of forty Polish, Czech, Slovak, Ukrainian and German sites were obtained. Weekly solutions were used to determine velocity field and vertical movements,...
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Applications of semi-definite optimization in quantum information protocols
PublikacjaThis work is concerned with the issue of applications of the semi-definite programming (SDP) in the field of quantum information sci- ence. Our results of the analysis of certain quantum information protocols using this optimization technique are presented, and an implementation of a relevant numerical tool is introduced. The key method used is NPA discovered by Navascues et al. [Phys. Rev. Lett. 98, 010401 (2007)]. In chapter...
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An attempt to mechanistically explain the viscoelastic behavior of transparent epoxy/starch-modified ZnO nanocomposite coatings
PublikacjaThe effects of bare and starch-modified ZnO (ZnO-St) nanoparticles on viscoelastic and mechanical properties are studied by dynamic mechanical and tensile analyses. Transparent epoxy-based nanocomposite films are prepared by incorporating bare or starch-modified ZnO particles into the epoxy matrix. The results demonstrated that ZnO particles hindered the curing reactions and hence the final properties of the cured epoxy. As a result,...
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More freedom – more investments. The relationship between the extent of fiscal autonomy with respect to own revenues and investment expenditures of Polish communes and cities with county rights
PublikacjaThe purpose of this study was to investigate the relationship between own revenues characterized by different levels of fiscal autonomy and investment expenditures of selected local government entities in Poland. Accordingly, the following research hypothesis was formulated: there is a relationship between the type of own revenue identified with respect to fiscal autonomy and the size of investment expenditures. Revenues characterized...
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Obtaining and Characterization of the PLA/Chitosan Foams with Antimicrobial Properties Achieved by the Emulsification Combined with the Dissolution of Chitosan by CO2 Saturation
PublikacjaA new method of obtaining functional foam material has been proposed. The materials were created by mixing the poly lactic acid (PLA) solution in chloroform, chitosan (CS) dissolved in water saturated with CO2 and polyethylene glycol (PEG), and freeze-dried for removal of the solvents. The composite foams were characterized for their structural (SEM, FT-IR, density, porosity), thermal (DSC), functional (hardness, elasticity, swelling...
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Studies on novel BiyXz-TiO2/SrTiO3 composites: Surface properties and visible light-driven photoactivity
PublikacjaA series of novel BiyXz-TiO2/SrTiO3 composites were prepared by multistep synthesis route. The asprepared photocatalysts were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS), Fourier transform infrared (FT-IR), Raman spectra and BET analysis. The photocatalytic activity test was performed in aqueous solution of phenol under...
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Obtaining and Characterization of the PLA/Chitosan Foams with Antimicrobial Properties Achieved by the Emulsification Combined with the Dissolution of Chitosan by CO2 Saturation
PublikacjaA new method of obtaining functional foam material has been proposed. The materials were created by mixing the poly lactic acid (PLA) solution in chloroform, chitosan (CS) dissolved in water saturated with CO2 and polyethylene glycol (PEG), and freeze-dried for removal of the solvents. The composite foams were characterized for their structural (SEM, FT-IR, density, porosity), thermal (DSC), functional (hardness, elasticity, swelling...
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Novel tetrahedral cobalt(II) silanethiolates: structures and magnetism
PublikacjaThree heteroleptic complexes of Co(II) tri-tert-butoxysilanethiolates have been synthesized with piperidine [Co{SSi(OtBu)3}2(ppd)2] 1, piperazine [Co{SSi(OtBu)3}2(NH3)]2(μ-ppz)·2CH3CN 2, and N-ethylimidazole [Co{SSi(OtBu)3}2(etim)2] 3. The complexes have been characterized by a single-crystal X-ray, revealing their tetrahedral geometry on Co(II) coordinated by two nitrogen and two sulfur atoms. Complexes 1 and 3 are mononuclear,...
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Density, sound velocity, viscosity, and refractive index of new morpholinium ionic liquids with amino acid-based anions: Effect of temperature, alkyl chain length, and anion
PublikacjaIn this work, room temperature synthesis of twenty new ionic liquids (ILs) based on the N-alkyl-N-methylmorpholinium ([Mor1,R], R = 2, 3, 4, 6, 8) cation and N-acetyl-L-amino acid anions (L-alaninate, L-valinate, L-leucinate, L-isoleucinate) was described. The synthesized ILs were characterized by various spectroscopic techniques and high-resolution mass spectrometry. Furthermore, density (ρ), sound velocity (v), viscosity (η)...
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Evaluation of the glycerolysis process and valorisation of recovered polyol in polyurethane synthesis
PublikacjaIn this study, the glycerolysis of polyurethane (PU) foam and the applicability of obtained glycerolysate (GLY) for cast PUs were investigated. It was found that crude glycerine with purity grade of 84% might be successfully used for the glycerolysis. The optimal conditions were determined as follows: reaction time of 60 min at 220 °C using dibutyltin dilaurate catalyst (0.5%). Moreover, the purification of GLY by means of liquid-liquid...
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Experimental and predicted physicochemical properties of monopropanolamine-based deep eutectic solvents
PublikacjaIn this work, the novel deep eutectic solvents (DESs) based on 3-amino-1-propanol (AP) as hydrogen bond donor (HBD) and tetrabutylammonium bromide (TBAB) or tetrabutylammonium chloride (TBAC) or tetraethylammonium chloride (TEAC) as hydrogen bond acceptors (HBAs) were synthesized with different molar ratios of 1:4, 1:6 and 1:8 salt to AP. Fourier Transform Infrared Spectroscopy measurements were performed to provide an evidence...
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Porosity and shape of airborne wear microparticles generated by sliding contact between a low-metallic friction material and a cast iron
PublikacjaThe wear of brakes in transport vehicles is one of the main anthropogenic sources of airborne particulate matter in urban environments. The present study deals with the characterisation of airborne wear microparticles from a low-metallic friction material / cast iron pair used in car brakes. Particles were generated by a pin-on-disc machine in a sealed chamber at sliding velocity of 1.3 m/s and contact pressure of 1.5 MPa. They...
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Effect of Tool Positioning Factors on the Strength of Dissimilar Friction Stir Welded Joints of AA7075-T6 and AA6061-T6
PublikacjaFriction Stir Welding (FSW) is a solid-state bonding technique. There are many direct and indirect factors affecting the mechanical and microstructural properties of the FSW joints. Tool offset, tilt angle, and plunge depth are determinative tool positioning in the FSW process. Investigating the effect of these factors simultaneously with other parameters such as process speeds (rotational speed and translational speed) and tool...
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XXXIII Wieczór z Ekonomią on-line!
WydarzeniaZapraszamy na wyjątkowe spotkanie on-line Wieczoru z Ekonomią organizowane przez prof. Piotra Dominiaka.
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Brak Ocena właściwości przeciwutleniających i przeciwcukrzycowych oraz wartości odżywczej prozdrowotnych ciastek kruchych sporządzonych na bazie wytłoków owocowych i erytrytolu
ProjektyProjekt realizowany w Uniwersytet Przyrodniczy we Wrocławiu zgodnie z porozumieniem DEC-2020/04/X/NZ9/00656 z dnia 2020-11-04
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MODEON Modelowa gospodarka osadowa w oczyszczalni ścieków zorientowana na zwiększenie produkcji energii odnawialnej i odzysk związków biogennych
ProjektyProjekt realizowany w Katedra Inżynierii Sanitarnej zgodnie z porozumieniem WFOŚ/D/201/3/2018 z dnia 2018-01-19
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Ścieżki dyfuzji nowych technologii - determinanty oraz implikacje dla procesu rozwoju gospodarczego. Nowe ujęcie teoretyczne i wyniki badań empirycznych.
ProjektyProjekt realizowany w Wydział Zarządzania i Ekonomii zgodnie z porozumieniem UMO-2015/19/B/HS4/03220 z dnia 2016-06-14
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Odpowiedź biologiczna indukowana przez niesymetryczne bisakrydyny o wysokiej aktywności przeciwnowotworowej w komórkach ludzkiego raka okrężnicy i płuc, wzmocniona przez dostarczenie związków w postaci koniugatów z nanocząstkami.
ProjektyProjekt realizowany w Katedra Technologii Leków i Biochemii zgodnie z porozumieniem UMO-2016/23/B/NZ7/03324 z dnia 2017-10-02
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- Borofen i jego pochodne do magazynowania energii – projektowanie procesów wytwarzania
ProjektyProjekt realizowany w Wydział Technologii i Inżynierii Chemicznej zgodnie z porozumieniem 2021/41/B/ST5/03279 z dnia 2022-02-03
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REC-PU Innowacyjne metody zagospodarowania produktów recyklingu tworzyw sztucznych do otrzymywania zrównoważonych materiałów poliuretanowych
ProjektyProjekt realizowany w Katedra Technologii Polimerów
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- Borofen i jego pochodne do magazynowania energii – projektowanie procesów wytwarzania
ProjektyProjekt realizowany w Wydział Technologii i Inżynierii Chemicznej zgodnie z porozumieniem 2021/41/B/ST5/03279 z dnia 2022-02-03
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HPC4Poland EDIH HPC4Poland Europejskie Centrum Innowacji Cyfrowych
ProjektyProjekt realizowany w Dział Usług Chmurowych
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Dynamika ogniw paliwowych
ProjektyProjekt realizowany w Wydział Chemiczny zgodnie z porozumieniem UMO-2012/05/N/ST8/02918 z dnia 2013-03-12
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HPC4Poland EDIH HPC4Poland Europejskie Centrum Innowacji Cyfrowych
ProjektyProjekt realizowany w Dział Usług Chmurowych zgodnie z porozumieniem 101083764 z dnia 2022-12-06
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Bio-TPU-3D Wpływ metody otrzymywania oraz rodzaju bio-monomeru na przebieg syntezy i wybrane właściwości nowych termoplastycznych elastomerów poliuretanowych.
ProjektyProjekt realizowany w Katedra Technologii Polimerów zgodnie z porozumieniem DEC-2019/03/X/ST5/01642 z dnia 2019-12-04
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3M-WETCELL Zastosowanie zintegrowanego podejścia 3M (Makrofity-Mikrobiom-Modelowanie) do wyjaśnienia mechanizmów produkcji bioenergii i transformacji mikrozanieczyszczeń w pływającym systemie hydrofitowym scalonym z mikrobiologicznym ogniwem paliwowym
ProjektyProjekt realizowany w Katedra Inżynierii Sanitarnej zgodnie z porozumieniem UMO-2021/43/B/NZ9/00787 z dnia 2022-10-03
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Sorption of ammonia nitrogen and phosphate phosphorous by straw and wood-derived biochars
Dane BadawczeThis dataset comprises the results of NH4-N and PO4-P sorption kinetics using straw and wood biochars that were pyrolyzed at 450 degrees Celsius. The adsorption capacity (mg/g) and equilibrium concentration (mg/L) are calculated.
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Strong-coupling character of superconducting phase in compressed selenium hydride
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Ewa Matuska
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Ewa Małecka dr
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Ewa Piotrowska mgr
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Ewa Suchanowska mgr
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Ewa Szymańska mgr inż.
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Ewa Trybulska
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Ewa Żeromska
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Ewa Marcinkiewicz mgr inż.
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Ewa Bieńkowska mgr
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Ewa Ardanowska
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Ewa Noga mgr
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Ewa Czarnecka inż.
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Ewa Szwedowska mgr
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Ewa Stelmańska
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Ewa Rogala mgr
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Ewa Majerowska
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Ewa Polak dr hab.
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Ewa Politowska dr
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Ewa Figiel dr inż.
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Ewa Możdżer dr hab. inż.
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