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Search results for: photoconversion of CO2
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Co architekt umieć powinien
PublicationCelem kształcenia arcchitekta powinno być wyrobienie i utrwalenie ogólnych umiejętności i uwrażliwień nieodzownych w praktycznym i skutecznym stosowaniu wiedzy i umiejętności twórczych, które po studiach muszą ulec rozwinięciu, jeśli architekt chce pracować w projektowaniu. Polegają one nie na byciu wyuczonym, lecz na przyswojeniu stałych zasad rządzących sztuką projektowania i umiejętności właściwego reagowania na nowe i zmieniające...
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Study of the selection mechanism of heavy metal (Pb 2+, Cu 2+, Ni 2+ and Cd2+) adsorption on clinoptilite
PublicationBadano proces adsorpcji jonów metali ciężkich (w warunkach statycznych) z wodnych roztworów jednoskładnikowych i wieloskładnikowych na klinoptylolicie zarówno surowym jak i po wstępnej obróbce. Proces sorpcji ma charakter procesu jonowymiennego i składa sie z trzech etapów:- adsorpcji na powierzchni mikokryształów,- inwersji,- adsorpcji wewnątrz mikrokryształów.Proces sorpcji może być dobrze opisany zarówno za pomocą modelu Frendlicha...
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Sea to air transport of trace gases in the coastal zone: a literature review
PublicationW pracy przedstawiono informacje i dane liczbowe dotyczące zjawiska wymiany składników śladowych (CO2, N2O, CH4, DMS, COS, NH3, metyloaminy, lotne związki halogenoorganiczne, CO) pomiędzy powierzchnią morza i powietrzem atmosferycznym w strefie przybrzeżnej. Dokonano oceny ogólnej emisji tych związków oraz podano informacje o stężeniach i o strumieniach (w skali rocznej).
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The overview of reactors used for the production of precipitated calcium carbonate via carbonation route
PublicationCarbonation is one of the methods for the production of precipitated calcium carbonate (PCC) on the industrial scale. A gaseous CO2 is used as a reagent in this process. The hydrodynamic conditions gener-ated in the reactor affect the course of the process and the characteristics of the precipitated calcium carbonate particles. This paper discusses the construction of standard reactors and new proposed con-struction used for the...
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Supported superparamagnetic Pd/Co alloy nanoparticles prepared from a silica/cyanogel co-gel
PublicationW pracy opisany jest sposób otrzymywania materiału kompozytowego zawierającego nanocząstki stopu Pd/Co. Obserwowane i dyskutowane jest przejście superparamagnetyczne pomiędzy 50K i 75K.
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Supported Superparamagnetic Pd/Co Alloy Nanoparticles Prepared from a Silica/Cyanogel Co-gel
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Graphene oxide, reduced graphene oxide and composite thin films NO2 sensing properties
PublicationA graphene oxide (GO), reduced graphene oxide (RGO) and poly(3,4-ethylenedioxytiophene)-reduced graphene oxide (PEDOT-RGO composite) gas sensors were successfully fabricated using an electrodeposition method. The electrodeposition was carried out in aqueous GO dispersions. To obtain RGO and PEDOT-RGO, the electrochemical reduction of GO and PEDOT-GO was carried out in 0.1 M KCl at a constant potential of −0.85 V. The GO, RGO and PEDOT-RGO...
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Development of potential candidate reference materials for drugs in bottom sediment, cod and herring tissues
PublicationRegular use of a reference material and participation in a proficiency testing program can improve the reliability of analytical data. This paper presents the preparation of candidate reference materials for the drugs metoprolol, propranolol, carbamazepine, naproxen, and acenocoumarol in freshwater bottom sediment and cod and herring tissues. These reference materials are not available commercially. Drugs (between 7 ng/g and 32...
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The effect of high pressure on formation of volatile amines in minced meat of cod (Gadus morhua)
PublicationThe 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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The comparison of SrTi0.98Nb0.02O3-δ-CeO2 and SrTi0.98Nb0.02O3-δ-YSZ composites for use in SOFC anodes
PublicationWytworzono i przebadano właściwości strukturalne i elektryczne kompozytów SrTi0.98Nb0.02O3-δ-CeO2 i SrTi0.98Nb0.02O3-δ-YSZ. Przeprowadzono testy materiałów zastosowanych jako anody w tlenkowych ogniwach paliwowych.
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Determination of COD Fractionation as a Key Factor for Appropriate Modelling and Monitoring of Activated Sludge Processes
PublicationAn operation of wastewater treatment plant is usually controlled by global parameters such as flow, solids retention time, sludge age, concentration of ammonia and dissolved oxygen, etc. It is considered that, together with the chemical and biological oxygen demand (COD and BOD), those parameters indirectly exhibit the effectiveness of activated sludge processes. Especially the BOD indicate the amount of organic pollution that...
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The comparison of SrTi0.98Nb0.02O3–δ-CeO2 and SrTi0.98Nb0.02O3–δ-YSZ composites for use in SOFC anodes
PublicationComposites of Nb-doped strontium titanate mixed with yttria-stabilized zirconia or cerium oxide in 50:50, 70:30 and 85:15 weight ratios were evaluated as possible anode/electrolyte interface materials for solid oxide fuel cells in terms of chemical compatibility, electrical conductivity and mechanical properties. It has been shown that composite samples prepared by typical powder-mixing methods remain single-phase up to 1400°C....
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Electron scattering cross sections for 1-pentene, H2C=CH-(CH2)2CH3, molecules
PublicationCross sections, both experimental and theoretical, are reported for electron scattering from 1-pentene (C5H10) molecules. Absolute grand-total cross sections (TCSs) were measured at electron impact energies ranging from 1 to 300 eV, using a linear electron-transmission technique. The dominant behaviour of the experimental TCS energy function is a distinct asymmetric enhancement with the maximum located around 6.5 eV. Discernible...
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Graphene oxide, reduced graphene oxide and composite thin films NO2 sensing properties
PublicationA graphene oxide (GO), reduced graphene oxide (RGO) and poly(3,4-ethylenedioxytiophene)- reduced graphene oxide (PEDOT-RGO composite) gas sensors were successfully fabricated using an electrodeposition method. The electrodeposition was carried out in aqueous GO dispersions. In order to obtain RGO and PEDOT-RGO, the electrochemical reduction of GO and PEDOT-GO was carried out in 0.1 M KCl at constant potential of −0.85 V. The GO, RGO...
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Study of the NO2 sensing mechanism of PEDOT-RGO film using in situ Raman Spectroscopy
PublicationIn this work, the mechanism of the NO2 reaction with PEDOT-RGO composite film has been investigated via in situ Raman spectroscopy. Reduced graphene oxide (RGO), poly(3,4-ethylenedioxytiophene)-reduced graphene oxide (PEDOT-RGO) and poly(3,4-ethylenedioxytiophene)/ClO4− (PEDOT/ClO4−) films were fabricated using an electrodeposition method and used as resistance sensors of gaseous nitrogen dioxide. The experimental results indicate...
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An NO2 sensor based on WO3 thin films for automotive applications in the microwave frequency range
PublicationA microwave system dedicated to the detection of nitrogen dioxide in the harsh environment of the Norway highways is proposed. An optimized transmission line type of sensor coated with a tungsten trioxide thin film that changes its electrical properties under NO2 gas exposure is developed. The sensors' response (S) is given in °/GHz and it is calculated based on wideband measurements. The advantage of wideband measurements in comparison...
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Apoptosis induction in C32 human melanoma cells by Jasione montana and its main phytoconstituents
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Characterization of Structural and Energetic Differences between Conformations of the SARS-CoV-2 Spike Protein
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Anti-Inflammatory and Antiviral Effects of Cannabinoids in Inhibiting and Preventing SARS-CoV-2 Infection
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Inhibition Ability of Natural Compounds on Receptor-Binding Domain of SARS-CoV2: An In Silico Approach
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Low temperature removal of SO2 traces from air by MgO-loaded porous carbons
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Theoretical Investigation of the Coronavirus SARS-CoV-2 (COVID-19) Infection Mechanism and Selectivity
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Effects of Ca2+, Mg2+, Na+, and K+ substitutions on the microstructure and electrical properties of GdCoO3 ceramics
PublicationGdCoO3-δ, Gd0.975Na0.025CoO3-δ, Gd0.98K0.02CoO3-δ, Gd0.98Ca0.02CoO3-δ, and GdCo0.99Mg0.01O3-δ ceramics were prepared via a solid-state reaction route. Among the dopants studied, substitution with Ca2+ slightly enhanced the densfication of GdCoO3 ceramics. All the lattice parameters of the doped ceramics were larger than those of pure GdCoO3-δ ceramic (a = 5.223 Å, b = 5.389 Å and c = 7.451 Å), and their cell volumes increased by...
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Understanding the kinetics and atmospheric degradation mechanism of chlorotrifluoroethylene (CF2=CFCl) initiated by OH radicals
PublicationThe atmospheric degradation of chlorotrifluoroethylene (CTFE) by OH˙ was investigated using density functional theory (DFT). The potential energy surfaces were also defined in terms of single-point energies derived from the linked cluster CCSD(T) theory. With an energy barrier of −2.62 to −0.99 kcal mol−1 using the M06-2x method, the negative temperature dependence was determined. The OH˙ attack on Cα and Cβ atoms (labeled pathways...
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Comparative study of a combined heat and power plant retrofitted by CO2 capture during the combustion of syngas from sewage sludge gasification versus zero-emission combustion of hydrogen produced using renewables
PublicationWith ecological requirements aimed at limiting the production of CO2, it is necessary to produce all, or most of the energy from RES. During the transformation process, ecological and highly efficient combustion power plants will be needed. The classic cycle of combined heat and power (CCGT) with green improvements will continue to be one of the most suitable technologies for this task. This article presents the modernization of...
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Jakość życia na co dzień.
PublicationW opracowaniu przedstawiono refleksje autora po napisaniu książki pod tym samym tytułem. Refleksje te dotyczą problematyki jakości życia w aspektach przeżyć człowieka i społeczno-gospodarczego znaczenia tej problematyki.
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CO-CURRICULAR ACTIVITIES IN TEACHING GEODESY
PublicationApart from education process based on the curricular activities, the whole set of co-curricular activities (CCAs) can help students to develope both expert knowledge and social skills. These activities are separated from academic course, sometimes placed outside of school or after regular school hours. Co-curricular activities such as students' scientific circles, workshops, conferences or festivals of science, publication, honor...
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Kontrakt wojewódzki i co dalej?
PublicationOmówiono instrument ''Kontraktu regionalnego'' w rozwoju województw w latach 2000-2002.
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Measurements of absolute total cross sections for electron scattering fromtriatomic polar molecules: SO2 and H2S.
PublicationZmierzono całkowity przekrój czynny na rozproszenie elektronów na SO2 i H2S.Pomiary przeprowadzono na zmodyfikowanym spektrometrze elektronów pracującym w oparciu o metodę transmisyjną.
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Multiple solutions of indefinite elliptic systems via a Galerkin-type Con- ley index theory
PublicationW pracy wykazano prawdziwość hipotezy Angenenta i van der Vorsta dotyczącąilości rozwiązań pewnego układu eliptycznego. Liczbę rozwiazań szacuje się zdołu przy pomocy niezmiennika topologicznego zwanego uogólnionym indeksemMorse`a. W dowodzie stosuje sie niezmienniczy index Conleya w przestrzeniachHilberta.
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Influence of CeO2 and TiO2 Particles on Physicochemical Properties of Composite Nickel Coatings Electrodeposited at Ambient Temperature
PublicationThe Ni-TiO2 and Ni-CeO2 composite coatings with varying hydrophilic/hydrophobic characteristics were fabricated by the electrodeposition method from a tartrate electrolyte at ambient temperature. To meet the requirements of tight regulation by the European Chemicals Agency classifying H3BO3 as a substance of very high concern, Rochelle salt was utilized as a buffer solution instead. The novelty of this study was to implement a...
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Interactions between components of SrTi0.98 Nb0.02O3-δ-YSZ and SrTi0.98 Nb0.02O3-δ -CeO2 composites
PublicationComposites consisting of SrTiO3-based perovskite and either yttria-stabilized zirconia or ceria were investigated. The mechanical compatibility and possible inter-diffusion between phases were characterized by scanning electron microscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy. A gradual disappearance of Ce-containing phases with an increase in the temperature of reduction in hydrogen was noticed. Moreover,...
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Luminescence recognition material as an INHIBIT logic gate in presence of Pb2+ and Cu2+ ions in aqueous solutions
PublicationA recognition material consisting of silica xerogel with amino-modified surface selectively recognizes Pb2+ and Cu2+ (but only in presence of Pb2+ ions) in aqueous solutions of other metal ions. The analytical action of the material is based on a significant change in luminescence emission spectra of the material after chemisorption of Pb2+ ions. In the presence of Pb2+ in octahedral coordination environment, a new broad and strong...
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THE PROTECTIVE MEASURES AGAINST SARS-COV-2 INFECTION IN THE SEAFOOD COMPANY FROM THE PERSPECTIVE OF THE EMPLOYEES
PublicationPurpose: To identify and discuss the protective measures implemented to prevent SARS-CoV-2 infection among employees. Design/methodology/approach: The four-stage course of research. Case study and structured interviews with all employees, directly and indirectly, involved in food processing. Research questions: (R1) What measures have been taken to prevent the risk of infection among employees? (R2) What activities and responsibilities...
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Virtual screening for small molecular non-covalent binders of the SARS-CoV-2 main protease
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Reactions of NO2 with chromium(III) complexes with histamine and pyridoxamine ligands studied by the stopped-flow technique
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The influence of different acids and pepsin on the extractability of collagen from the skin of Baltic cod (Gadus morhua)
PublicationZastosowano 5,0 M roztwory kwasu cytrynowego, mlekowego, octowego oraz 0,115 M roztwór kwasu solnego. Kolagen z całych skór ekstrahowano w 4 st.C odpowiednimi kwasami (1 : 6, w/v) w czasie 24, 48 i 72 h. Stwierdzono, że kwas solny jest najmniej efektywnym rozpuszczalnikiem kolagenu spośród użytych kwasów. W zastosowanych warunkach doświadczeń maksymalnie można wyekstrahować kwasem cytrynowym 60 % kolagenu, kwasem octowym i mlekowym...
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Infection with SARS‐CoV‐2 among children with asthma: evidence from Global Asthma Network
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Dual-emission Eu-doped Ca2−xSrxPN3 nitridophosphate phosphors prepared by hot isostatic press
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Nutritional behaviors of women and men in Poland during confinement related to the SARS-CoV-2 epidemic
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Nutritional Behaviors of Women and Men in Poland During Confinement Related to the SARS-CoV-2 Epidemic
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Psychopathological Symptoms Among Chronically Ill Patients During SARS-CoV-2 Pandemic in Poland
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SARS-CoV-2 pandemic and the population with dementia. Recommendations under the auspices of the Polish Psychiatric Association
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Development and validation of an eco-compatible UV–Vis spectrophotometric method for the determination of Cu2+ in aqueous matrices
PublicationCu 2+ are ubiquitous ions in the ecosystem and are responsible of serious environmental pollution. Indeed, the development of sensitive methods for Cu 2+ detection is an urgent demand. In this work, we proposed a new spectrophotometric method for Cu 2+ determination in different water matrices (distilled water, drinking water, wastewater, and river water). The method employs a bio-based organic ligand namely tetrasodium iminodisuccinate...
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Mixed electronic-ionic conductivity in transition metal oxide glasses con-taining alkaline ions
PublicationOpisano właściwości elektryczne szkieł z tlenkami metali przejściowych zawierających jony metali alkalicznych. Szczególną uwagę zwrócono na typowe zmiany przewodnictwa występujące przy domieszkowaniu tego typu szkieł jonami metali alkalicznych. Porównano przewodnictwo elektryczne szkieł fosforanowo-żelazowych zawierających jony sodu z przewodnictwem szkieł bizmutowo-miedziowych.
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Opracowanie potencjometrycznej wieloczujnikowej platformy wykonanej całkowicie w technologii All-Solid-State do jednoczesnego oznaczania kilku jonów w roztworach wodnych
PublicationW pracy przedstawiono charakterystykę i konstrukcje różnych elektrod jonoselektywnych (EJS), a także opisano elektrodę odniesienia i jej funkcję. Przybliżono możliwości zastosowania EJS do monitorowania śladowych ilości ołowiu (II) w otoczeniu kopalni rud cynku i ołowiu, oraz jako biowskaźnik stanu pacjenta w czasie wstrząsu septycznego. Opisano wieloczujnikowe platformy potencjometryczne (WPP) w technologii All-Solid-State (ASS). W...
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A novel concept of H2/O2 steam generator
PublicationThis paper presents an idea of hydrogen utilization to steam generation to drive a turbine and produce electricity or to supply a condenser as an element of a heating system. Electrolysis process is considered as a source of hydrogen as well as oxygen. Hydrogen combustion with a stoichiometric ratio of pure oxygen produces steam at very high temperature. Steam temperature can be controlled by mixing the generated steam with liquid...
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Co czyha na nas w domu?
PublicationKojarzący się z poczuciem bezpieczeństwa dom jest również miejscem stwarzającym zagrożenie dla zdrowia i dobrego samopoczucia ludzi. Zanieczyszczenia obecne w powietrzu wewnętrznym często na wyższym poziomie niż w powietrzu atmosferycznym, mogą powodować wiele chorób oraz działać alergizująco. W artykule opisano zagadnienie syndromu chorych budynków oraz podano podział zanieczyszczeń ( biologicznych, chemicznych i fizycznych...
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A NOVEL CONCEPT OF H2/O2 STEAM GENERATOR
PublicationThis paper presents an idea of hydrogen utilization to steam generation to drive a turbine and produce electricity or to supply a condenser as an element of heating system. Electrolysis process is considered as a source of hydrogen as well as oxygen. Hydrogen combustion with a stoichiometric ratio of pure oxygen produces steam at very high temperature. Steam temperature can be controlled by mixing the generated steam with liquid...
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Glucose/O2 biofuel cell to generate electricity
PublicationOgniwa paliwowe mogą stanowić jedną z głównych technologii do produkowania energii w przyszłości. Pozwalają na uzyskanie energii elektrycznej i ciepła bezpośrednio z zachodzącej w nich reakcji chemicznej. Glukoza utleniana jest do glukonolaktonu przez enzym Glucose Oxidase, który jest immobilizowany ze specyficznym mediatorem na anodzie, podczas gdy tlen jest redukowany do wody za pomocą enzymu Laccase zimmobilizowanego ze specyficznym...