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Thermoluminescence Enhancement of LiMgPO4 Crystal Host by Tb3+ and Tm3+ Trivalent Rare-Earth Ions Co-doping
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Micro-strain administered SHG intensity enhancement by heavy Ce doping in co-precipitated ZnO nanoparticles
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Experimental and theoretical analyses of the nonlinear optical effects in magnesium and copper co-doped zinc oxide nanorods
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Influence of the addition of citric acid on the physico-chemical properties of poly(sorbitol sebacate-co- butylene sebacate)
PublikacjaThe article presents the results of the physicochemical properties of poly(sorbitol sebacate- co-butylene sebacate) (PSBS) obtained with 0.25; 0.5; 0.75; 1 mol of citric acid (KC). It was shown that PSBS obtained with 0.25 and 0.5 mol KC is characterized by the most optimal mechanical and thermal properties. As a result of the study, it was found that the use of sorbitol and citric acid allows obtaining ester materials with...
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Dmuchanie w kanał : Co robić aby przewody kanalizacyjne nie przekształcały się w osadniki.
PublikacjaBezpieczne projektowaniue kanalizacji. Hydraulika. Samooczyszczanie, eksploatacja
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Co w architekturze piszczy? Dźwiękowy wymiar przestrzeni / What’s the buzz in architecture? – The sonic aspect of space
PublikacjaThe article presents a debate on the dividing line between architecture and the sound sciences. It sketches out the theoretical and practical aspects of space development in the context of its sonic reception. The analysis is based on examples of projects combining architecture and art in public space and their consequences for the reception of this space. The projects relate to the use of art in urban space with special emphasis...
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Influence of B/N co-doping on electrical and photoluminescence properties of CVD grown homoepitaxial diamond films
PublikacjaBoron doped diamond (BDD) has great potential in electrical, and electrochemical sensing applications. The growth parameters, substrates, and synthesis method play a vital role in the preparation of semiconducting BDD to metallic BDD. Doping of other elements along with boron (B) into diamond demonstrated improved efficacy of B doping and exceptional properties. In the present study, B and nitrogen (N) co-doped diamond has been...
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Ochrona i zagrożenie wartości zabytków - czyli o skutkach braku wartościowania i co dalej...
PublikacjaPrzedmiotem artykułu są problemy wynikające z braku oficjalnego systemu wartościowania zabytków architektury w polskim systemie ich ochrony oraz przedstawia możliwości i propozycje jego wprowadzenia.
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Structure and evolution of the 4-helix bundle domain of Zuotin, a J-domain protein co-chaperone of Hsp70
PublikacjaThe J-domain protein Zuotin is a multi-domain eukaryotic Hsp70 co-chaperone. Though it is primarily ribosome-associated, positioned at the exit of the 60S subunit tunnel where it promotes folding of nascent polypeptide chains, Zuotin also has off-ribosome functions. Domains of Zuotin needed for 60S association and interaction with Hsp70 are conserved in eukaryotes. However, whether the 4-helix bundle (4HB) domain is conserved remains...
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The Influence of the Co-Dopant Dexamethasone Phosphate on the Electrodeposition Process and Drug-Release Properties of Polypyrrole-Salicylate on Iron
PublikacjaIn this work, the influence of incorporation of two anti-inflammatory drugs dexamethasone phosphate and sodium salicylate on the electrodeposition process of polypyrrole (PPy) film on iron has been studied. The incorporation of the agents into PPy has been carried out in a one-step electropolymerization process on oxidizable iron. The role of each drug agent during the deposition process has been discussed. The morphological and...
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The effect of agro-waste co-digestion and sludge disposal on carbon footprint in municipal wastewater treatment plants
PublikacjaThe study presents analysis of the carbon footprint (CF) in 6 wastewater treatment plants in northern Poland with a special focus on the effect of co digestion of sewage sludge and food waste. Although co-digestion increases the on-site energy production, but it has a negative effect on the total CF. To overcome the negative effect, several sludge disposal scenarios were analysed and their effect on the CF reduction was determined....
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Conformation analysis and semiclassical dynamics study of charge exchange process induced by collision of C2+ ions with tetrahydrofuran
PublikacjaWe present the results of recent investigations of charge transfer processes in the collisions of C²⁺ ions with heterocyclic molecules of tetrahydrofuran.
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Synthesis of Trehalose by the Erythritol-Producing Yeast Yarrowia lipolytica Co-Displaying Maltooligosyltrehalose Synthase and Maltooligosyltrehalose Trehalohydrolase
PublikacjaIndustrial trehalose production faces economic challenges with costly enzyme preparations, prompting the exploration of eco-friendly alternatives. Here, we established a coupled functional sugar production line leveraging erythritolproducing cells as an innovative enzyme preparation for trehalose synthesis. The erythritol-producing Yarrowia lipolytica was modified to express a fusion protein consisting of maltooligosyltrehalose synthase...
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Fungal co-culture improves the biodegradation of hydrophobic VOCs gas mixtures in conventional biofilters and biotrickling filters
PublikacjaThe present study systematically evaluated the potential of Candida subhashii, Fusarium solani and their consortium for the abatement of n-hexane, trichloroethylene (TCE), toluene and α-pinene in biofilters (BFs) and biotrickling filters (BTFs). Three 3.2 L BFs packed with polyurethane foam and operated at a gas residence time of 77 s with an air mixture of hydrophobic volatile organic compounds (VOCs) were inoculated with C. subhashii,...
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Verification of Satellite Railway Track Position Measurements Making Use of Standard Co-Ordinate Determination Techniques
PublikacjaThe article presents the results of satellite railway track position measurements performed by a multidisciplinary research team, the members of which represented Gdansk University of Technology and Gdynia Maritime University. Measuring methods are described which were used for reconstructing the railway track axis position and diagnosing railway track geometry deformations. As well as that, the description of the novel method...
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Investing in wine, precious metals and G-7 stock markets – A co-occurrence analysis for price bubbles
PublikacjaThis paper used the GSADF test to determine the periods defined in this paper as price bubbles in the three markets studied, i.e. the investment wine market, precious metal market and national stock market indices of G-7 countries. The results obtained enabled the calculation of the values of the phi correlation coefficients, which served the research objective of assessing the co-occurrence of price bubbles in the markets analysed....
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Jakość mikrobiologiczna wód powierzchniowych oraz wód podziemnych rozprowadzanych w sieci wodociągowej.
PublikacjaPrzeprowadzono mikrobiologiczne badania jakości wód wodociągowych z ujęcia powierzchniowego (A1) i ujęć podziemnych (B1, B2).Wody powierzchniowe poddawane są licznym procesom fizykochemicznym (ozonowaniu wstępnemu, koagulacji, filtracji na filtrach piaskowych, ozono-waniu pośredniemu oraz filtracji na filtrach węglowych). W pierwszym okresie przed podaniem do sieci wody były dezynfekowane przy użyciu chloru gazowe-go, a w drugim...
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Badania cieczy jonowych jako absorbentów gazów
PublikacjaPrzedmiotem pracy jest efektywność przenikania CO2 oraz CH4 przez ciekłe membrany z cieczami jonowymi osadzonymi na nośnikach polimerowych i szklanych oraz pomiary stabilności tych membran w temperaturze 283-298 K.Badania objęły ciecze jonowe będące kombinacją kationu [CnMIM], zawierającego różną długość podstawnika alkilowego n=2-6 oraz różnych anionów: Tf2N, TfO, BF4 i PF6. Jako nośniki SILMs zastosowano materiały polimerowe:...
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A study of a compact high-efficiency zero-emission power plant with oxy-fuel combustion
PublikacjaThis paper discusses the application of global trends in gas cycles technology using oxy-fuel combustion. This is followed by a demonstration of a design solution for a new cycle with two enhanced energy-converting devices, namely a wet combustion chamber and a spray-ejector condenser. The proposed gas and steam cycle unit is contained within a single turbine, whose benefits combine those offered by gas turbines (high inlet temperatures)...
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Optymalizacja pracy oczyszczalni ścieków na przykładzie wybranych obiektów z województwa pomorskiego
PublikacjaOptymalizacja pracy oczyszczalni ścieków na przykładzie wybranych obiektów z województwa pomorskiego - modelowanie w procesach osadu czynnego, energia i emisja gazów cieplarnianych, przykłady
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Analiza działań podjętych w celu zmniejszenia tempa ocieplania się klimatu i ich skutki ekonomiczne
PublikacjaNie ma całkowitej pewności, co do roli człowieka w ociepleniu się klimatu na Ziemi. Obecnie coraz więcej osobistości świata nauki przeczy tezom głoszonym przez IPCC, poszukują oni innych przyczyn podwyższania się temperatury na ziemskim globie. Nie mniej jednak społeczność międzynarodowa przeforsowała szereg dyrektyw i rozporządzeń, mających przeciwdziałać wzrostowi emisji dwutlenku węgla i innych gazów cieplarnianych do atmosfery....
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A novel concept of enhanced direct-contact condensation of vapour- inert gas mixture in a spray ejector condenser
PublikacjaAn analytical model of direct steam condensation (DCC) in the novel idea of spray ejector condenser (SEC) in the presence of inert gas has been developed. It is based on continuity, momentum and energy equations for the steam-carbon dioxide mixture and direct contact condensation mechanisms due to heat transfer and concentration. Crucial in the process of DCC is atomisation of the motive fluid in the ejector. The effect of atomised...
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Membranowe elektrody jonoselektywne zawierające amidowe pochodne p-tert-butylohomooksakaliksarenów
PublikacjaDietyloamidowe pochodne p-tert-butylodihomooksakaliks[4]arenu (1), p-tertbutyloheksahomotrioksakaliks[3]arenu (2) zostały zastosowane jako materiały aktywne w membranowych elektrodach jonoselektywnych (JSE) by zbadać ich selektywność względem jonów Na+, K+, Cs+, Mg2+, Ca2+, Mn2+, Cu2+, Zn2+, Cd2+, Pb2+ i porównać z badaną wcześniej pochodną dietyloamidową p-tert-butylokaliks[4]arenu (3). Związkitestowano w membranach PCV zawierających...
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Diphosphinoboranes as Intramolecular Frustrated Lewis Pairs: P–B–P Bond Systems for the Activation of Dihydrogen, Carbon Dioxide, and Phenyl Isocyanate
PublikacjaHerein, we present the first example of the activation of small molecules by P-B-P bond systems. The reactivity study involves reactions of two selected diphosphinoboranes, (tBu2P)2BPh (1’) and (Cy2P)2BNiPr2 (2), that differ in terms of their structural and electronic properties for the activation of dihydrogen, carbon dioxide, and phenyl isocyanate. Diphosphinoborane 1’ activates H2 under very mild conditions in the absence of...
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Odporność kawitacyjna stali 2H13 przetapianej wiązką lasera i stopowanej niobem
PublikacjaPrzedstawiono badania odporności kawitacyjnej stali 2H13 po dwóch wariantach obróbki laserowej. W pierwszym wariancie powierzchnie stali przetapiano wiązką lasera CO2, a w drugim powierzchnie wzbogacano Nb w ilości 5% masowego.
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Photocatalysts for Solar Energy Conversion
PublikacjaPhotocatalytic oxidation over suspended solid photocatalysts (e.g., titanium dioxide) has been proposed as a sustainable process for treatment and purification of water and wastewater as well as the process for photoconversion of solar energy to hydrogen, methane, and other low hydrocarbons. Solar radiation could be used to drive heterogeneous electrochemical reactions at the surface of an optically active photocatalyst (e.g.,...
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Mercury emission from coal-fired power plants in Poland
PublikacjaPrzedstawiono główne źródła emisji rtęci w Polsce. W zwiazku z dużą ilością spalanego węgla, jak również planami na przyszłość węgiel kamienny i brunatny jest i będzie podstawowym źródłem produkcji energii w Polsce. Ponieważ węgiel zawiera rtęć, to podczas spalania węgla rtęć uwalniania jest do atmosfery. Spalanie węgla w elektrowniach jest i będzie w najbliższym czasie głównym źródłem emisji rtęci w Polsce. W pracy opisano metody...
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Application of acoustic emission in evaluation of pitting corrosion insteel
PublikacjaPrzedstawiono przegląd różnych zastosowań emisji akustycznej (AE) w badaniach korozji wżerowej stali austenitycznej. Wykorzystanie emisji akustycznej w przypadku tego rodzaju korozji nie jest przypadkowe, ponieważ korozja wżerowa jest najgroźniejszym typem korozji, atakującym różne materiały konstrukcyjne takie jak stal. Prezentowana praca przeglądowa dostarcza przydatnych informacji o naturze pomiarów akustycznych, które wykazują...
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Efficiency of thermomechanical reclaiming of ground tire rubber conducted in counter-rotating and co-rotating twin screw extruder
PublikacjaIn this article the results of research on a continuous thermomechanical reclaiming process of ground tire rubber (GTR) conducted in a twin screw extruder are presented. The effects of the rotation direction (co-rotating/counter-rotating), design of co-rotating plasticizing units and the rotational speed of the screws on the extruder working parameters, sol fraction and the degree of reclaiming in the obtained products were described....
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Co-free triple perovskite La1.5Ba1.5Cu3O7±δ as a promising air electrode material for solid oxide fuel cells
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Photocatalytic hydrogen evolution by co-catalyst-free TiO2/C bulk heterostructures synthesized under mild conditions
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Coking Study in Anode Materials for SOFCs: Physicochemical Properties and Behavior of Mo-Containing Perovskites in CO and CH4 Fuels
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White emitting GeO2PbO Bi2O3SrF2 glass and nano-glass ceramics co-doped with Eu3+, Tb3+ and Tm3+ ions
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Co-crystal formation between 2-amino-4,6-dimethylpyrimidine and new p-xylylene-bis(thioacetic) acid
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Influence of e-Beam Irradiation on the Physicochemical Properties of Poly(polyol Succinate-co-Butylene Succinate) Ester Elastomers
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Whey Proteins as a Potential Co-Surfactant with Aesculus hippocastanum L. as a Stabilizer in Nanoemulsions Derived from Hempseed Oil
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Effect of Co-Encapsulated Natural Antioxidants with Modified Starch on the Oxidative Stability of β-Carotene Loaded within Nanoemulsions
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Co-Infection of the Hepatitis C Virus With Other Blood-Borne and Hepatotropic Viruses Among Hemophilia Patients in Poland
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Characterization and Wear Response of Magnetron Sputtered W–B and W–Ti–B Coatings on WC–Co Tools
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Investigations of ternary complexes of Co(II) and Ni(II) with oxydiacetate anion and 1,10-phenanthroline or 2,2′-bipyridine in solutions
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The influence of transition metals (Fe, Co) on the structural, magnetic and optical properties of TiO2 nanoparticles synthesized by the hydrothermal method
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The Influence of Co-Fermentation of Agri-Food Waste with Primary Sludge on Biogas Production and Composition of the Liquid Fraction of Digestate
PublikacjaEnergy self-sufficiency is a current trend in wastewater treatment plants. This effect can be achieved by increasing the production of electricity from biogas and by reducing energy consumption for technological processes. One idea, in line with the circular economy concept, is the use of waste rich in organic matter as co-substrates for the fermentation process. The aim of this study was to determine the effect of waste co-fermentation...
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Ultrasound-assisted wet-impregnation of Ag–Co nanoparticles on cellulose nanofibers: Enhanced catalytic hydrogenation of 4-nitrophenol
PublikacjaIn this study, a novel nanocomposite of bimetallic Ag–Co nanoparticles supported on cellulose nanofibers (CNFs) was synthesised using the ultrasound-assisted wet-impregnation method for catalytic applications. CNFs were prepared from cellulose acetate using the electrospinning technique. Fourier transform infrared spectroscopy (FTIR) analysis confirmed the successful synthesis of CNFs. Further, scanning electron microscopy (SEM)...
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A white phosphor based on oxyfluoride nano-glass-ceramics co-doped with Eu3+ and Tb3+: Energy transfer study
PublikacjaStrontium fluoride nanocrystals doped separately with Ln3+ = Eu3+ or Tb3+ ions (95SrF2·5LnF2), as well as co-doped with both the ions (95SrF2·Eu4Tb) were synthesized for comparison. Then, glass-ceramics consisting of the mono-doped or di-doped SrF2 nanocrystals incorporated into amorphous silica (90SiO2·9.5SrF2·0.5Ln or 90SiO2·9.5SrF2·0.1EuF3·0.4Tb) were prepared by sol-gel procedure. The studied materials were characterized by...
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The Production Possibility of the Antimicrobial Filaments by Co-Extrusion of the PLA Pellet with Chitosan Powder for FDM 3D Printing Technology
PublikacjaThe last decades have witnessed a major advancement and development in three-dimensional (3D) printing technology. In the future, the trend’s utilization of 3D printing is expected to play an important role in the biomedical field. This work presents co-extrusion of the polylactic acid (PLA), its derivatives (sPLA), and chitosan with the aim of achieving filaments for printing 3D objects, such as biomedical tools or implants. The...
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Modelling charge transfer processes in C2+ -tetrahydrofuran collision for ion-induced radiation damage in DNA building blocks
PublikacjaInvestigations of collision-induced processes involving carbon ions and molecules of biological interest in particular DNA building blocks, are crucial to model the effect of radiation on cells in order to improve medical treatments for cancer therapy. Using carbon ions appears to be one of the most efficient ways to increase biological effectiveness to damage cancerous cells by irradiating deep-seated tumors. Therefore, interest...
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Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2 O2 processes
PublikacjaAdvanced automotive fl eet repair facility wastewater treatment was investigated with Zero-Valent Iron/Hydrogen Peroxide (Air/ZVI/H2 O2 ) process for different process parameters: ZVI and H2 O2 doses, time, pH. The highest Chemical Oxygen Demand (COD) removal effi ciency, 76%, was achieved for ZVI/H2 O2 doses 4000/1900 mg/L, 120 min process time, pH 3.0. COD decreased from 933 to 227 mg/L. In optimal process conditions odor and...
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Surrogate-assisted EM-driven miniaturization of wideband microwave couplers by means of co-simulation low-fidelity models
PublikacjaThis article proposes a methodology for rapid design optimization of miniaturized wideband couplers. More specifically, a class of circuits is considered, in which conventional transmission lines are replaced by their abbreviated counterparts referred to as slow-wave compact cells. Our focus is on explicit reduction of the structure size as well as on reducing the CPU cost of the design process. For the sake of computational feasibility,...
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Electrochemical determination of neurotransmitter serotonin using boron/nitrogen co-doped diamond-graphene nanowall-structured particles
PublikacjaElectrode fouling is a major issue in biological detection due to the adhesion of the protein itself and polymerization of biomolecules on the electrode surface, impeding the electron transfer ability and decreasing the current response. To overcome this issue, the use of anti-fouling material, especially boron-doped diamond (BDD) electrode, is an alternative way. However, the electrocatalytic activity of BDD is inadequate compared...
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M-BDC (M = Co and/ or Fe) MOFs as effective catalysts for hydrogen generation via hydrolysis of sodium borohydride
PublikacjaMono- (Co-BDC, Fe-BDC) and bimetallic FeCo-BDC Metal-Organic Frameworks are successfully synthesized by the solvothermal method in DMF at 150 °C within 15 h and tested as catalysts for sodium borohydride hydrolysis. The materials are characterized by FTIR, PXRD, TGA, ICP-OES, H2-TPR, BET model, and SEM-EDS. The catalytic activity of these materials is studied for dehydrogenation of sodium borohydride in water at various temperatures...