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Wyniki wyszukiwania dla: REAKTOR GAZ(CO2)-LIFT
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SARS-CoV-2 infection and SLE: endothelial dysfunction, atherosclerosis, and thrombosis
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Links between Vitamin K, Ferroptosis and SARS-CoV-2 Infection
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Social health of people with dementia during the SARS-CoV-2 pandemic
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Computational Selectivity Assessment of Protease Inhibitors against SARS-CoV-2
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Can the SARS-CoV-2 virus damage human hearing and balance?
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Assessment of anti‐SARS‐CoV‐2 antibodies level in convalescents plasma
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Construction and investigation of SO2 amperometric sensor with a solid polymer electrolyte membrane
Publikacjan this paper a sensor for detection of the sulphur dioxide based on three electrode cell configuration with a liquid electrolyte, a mercury sulphate reference electrode and a solid polymer electrolyte working electrode is presented. Working elec- trode was obtained by using Takenaka-Torikai chemical deposi- tion method by precipitation of Au particles into the pores of the Nafion membrane. Sensors characteristics measurements were...
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Organic matter removal efficiency in treatment wetlands simulation by COD fractions
PublikacjaThe objective of this paper was to investigate the organic fraction (colloidal, particulate, and dissolved) in sewage treatment in treatment wetland. Performance of TWs was simulated well with a simple first order model k – C* based on monitoring data. In this investigation background or residual concentration (C*) was assumed to be equal concentration of input influent organic matter in particulate (CODp). Calculated reaction...
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Laser patterned platform with PEDOT–graphene composite film for NO2 sensing
PublikacjaThis work presents a simple and fully electrochemical route used for fabricating of a NO2 gas sensor made of reduced-graphene-oxide-poly(3,4-ethylenedioxythiophene) composite film. The sensing platform was fabricated from alumina substrate and equipped with gold interdigitated electrodes and built-in heater.The temperature distribution on the surface of interdigitated electrodes was investigated by a thermalimaging camera and compared...
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Molecular and structural characteristics of cod gelatin films modifiedwith EDC and TGase
PublikacjaCod gelatin films before and after cross-linking of gelatin with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) or transglutaminase (TGase) have been characterized by FT-IR spectroscopy and DSC analysis. For comparison, a film prepared from unmodified pig gelatin has been also analysed. The difference spectra showed that cod gelatin during the film formation involved first of all water-to-amide hydrogen bonds, and the film...
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Wpływ optymalnego zasilania parownika na współczynnik COP urządzenia chłodniczego
PublikacjaZastosowanie nowoczesnego zaworu rozprężnego umożliwia znaczne podniesienie sezonowego współczynnika efektywności urządzenia chłodniczego. Optymalne rozwiązanie polega na takim skomponowaniu pozostałych elementów układu chłodniczego, aby zawór ten mógł współpracować z całością jak najefektywniej. Mowa tu o wyborze wymienników mikrokanałowych zamiast klasycznych płytowych czy lamelowych oraz nowoczesnego typu sprężarki spiralnej....
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Charakterystyka zgorzelin na elementach wyposażenia wewnętrznego ze stali 18Cr-10Ni-0,5Nb w reaktorze instalacji hydrokrakingu
PublikacjaBadano zgorzeliny siarczkowe na kołpakach z austenitycznej stali 18Cr-10Ni-0,5Nb z wnętrza reaktora instalacji hydrokrakingu. Wsad reaktora stanowiły ciekłe węglowodory i wodór o temperaturze 370 stopni C. Stężenie siarkowodoru w aparacie zawierało się w granicach 12 ppm - 1,2% obj. Posługując się elektronowym skaningowym mikroskopem sprzężonym ze spektrometrem rentgenowskim dyspersji energii określono mikrostrukturę i skład chemiczny...
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Cyrkulacja cieczy i moc mieszania a lokalizacja strefy wznoszenia w wewnątrzobiegowym reaktorze kolumnowym z mieszaniem mechanicznym
PublikacjaBadano przepływ cieczy oraz moc mieszania w reaktorach airlift z wewnętrzną cyrkulacją. Stwierdzono, że dla tych samych parametrów procesowych, w reaktorze ze strefą wznoszenia w przestrzeni pierścieniowej moc mieszania jest wyższa, a prędkość cyrkulacji niższa niż w reaktorze ze strefą wznoszenia w kolumnie wewnętrznej.
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The complete list of two-dimensional rotation-symmetric number-conserving septenary cellular automata
Dane BadawczeThis dataset contains a complete list of all 30144 two-dimensional rotation-symmetric number-con-serving cellular automata with the state set {0,1,2,3,4,5,6} based on adjacent cells only, i.e. with the von Neumann neighborhood. The detailed definitions and the method of enumerating are given in the paper:
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Gazi University Journal of Science
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Forming of the gap in tendon sutures with an anchor without a pin
Dane BadawczeThe main objective of the all study was to assess the load capacity of a new implant device for knotless tendon anastomosis. During this series of experiments the gap formation process between the fronts of the connected tendons was observed. Tendons from fresh swine legs (commercially available) served as the biological material. The tendon juncture...
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Wpływ obecności bakterii na szybkość wnikania tlenu w reaktorze airlift do oczyszczania ścieków z substancji organicznych
PublikacjaPrzedstawiono wyniki badań wnikania tlenu w reaktorze airlift z cyrkulacją zewnętrzną. W strefie opadania reaktora cząstki nośnika stałego z immobilizowanymi bakteriami tworzyły odwrotną warstwę fluidalną. Zbadano wpływ parametrów procesowych na szybkość wnikania tlenu w obecności unieruchomionych bakterii Acinetobacter calcoaceticus.
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Perceived neighborhood disorder and quality of life: The role of the human-place bond, social interactions, and out-group blaming.
PublikacjaFour studies were carried out to examine how neighborhood disorder, human-place bonds, relationships among neighbors, and urban quality of life are related and what role blaming nonresidents plays in these relationships. In the first study, local identity was a significant mediator of the relationship between neighborhood disorder and quality of life. In the second study, we found that participants exposed to vignettes describing...
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Do Involvement in Alcoholics Anonymous and Religiousness Both Directly and Indirectly through Meaning in Life Lead to Spiritual Experiences?
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Assessment of Left Atrial Function in Patients with Paroxysmal, Persistent, and Permanent Atrial Fibrillation Using Two-Dimensional Strain.
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COVID-19 pandemic fear, life satisfaction and mental health at the initial stage of the pandemic in the largest cities in Poland
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Social Support Mediates the Association between Health Anxiety and Quality of Life: Findings from a Cross-Sectional Study
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Duration of disability, functional independence, coping styles and the quality of life in patients with spinal cord injury – Pilot study
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Manufacturing and Recycling Impact on Environmental Life Cycle Assessment of Innovative Wind Power Plant Part 1/2
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Manufacturing and Recycling Impact on Environmental Life Cycle Assessment of Innovative Wind Power Plant Part 2/2
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Manufacturing and Recycling Impact on Environmental Life Cycle Assessment of Innovative Wind Power Plant Part 2/2
PublikacjaThe process of conversion of wind kinetic energy into electricity in innovative wind power plant emits practically no harmful substances into the environment. However, the production stage of its components requires a lot of energy and materials. The biggest problem during production plan-ning process of an innovative wind power plant is selection of materials and technologies and, consequently, the waste generated at this stage....
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Manufacturing and Recycling Impact on Environmental Life Cycle Assessment of Innovative Wind Power Plant Part 1/2
PublikacjaWind power plants are considered as ecologically-clean source of energy. However, manufacturing processes cannot be treated that way. Manufacturing processes consume huge amount of electrical and thermal energy and significant amount of materials, e.g. steel, polymers, oils and lubricants. All of the above could be potentially harmful for environment. There are not many works and publications regarding life-cycle analysis of wind...
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The use of recycled semiconductor material in crystalline silicon photovoltaic modules production - A life cycle assessment of environmental impacts
PublikacjaTo offset the negative impact of photovoltaic modules on the environment, it is necessary to introduce a longterm strategy that includes a complete lifecycle assessment of all system components from the production phase through installation and operation to disposal. Recycling of waste products and worn-out systems is an important element of this strategy. As the conclusions from the previous studies have shown, thermal treatment...
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Long-term exposure to urban air pollution and the relationship with life expectancy in cohort of 3.5 million people in Silesia
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Multi-stage magnetic-fluid seals for operating in water - life test procedure, test stand and research results
PublikacjaThe edge criteria for magnetic-fluid seals durability research are critical for the seal'stechnological usefulness. The magnetic fluid seal technology in water is much moredifficult technological problem in comparison to gas or vacuum environment. There isalways problem with immediate contact between magnetic fluid and the environmentaluninspected liquids. In the paper are presented ways of experiments definitions carried outwith...
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Determination of Heavy Metals Concentration in Water and Soil at Various Locations in Lahore and their Harmful Impacts on Human and Plants life
PublikacjaHeavy metals poisoning of soil and water has resulted from industrial expansion in Lahore, Pakistan, creating a significant environmental hazard. As a result, monitoring the contamination of soil and water around industrial sites is critical. The fact that higher concentrations of heavy metals have a negative influence on both plants and human life and this cannot be ignored. Higher heavy metal concentrations have a direct impact...
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Investigating the Effects of Geometrical Parameters of Re-Entrant Cells of Aluminum 7075-T651 Auxetic Structures on Fatigue Life
PublikacjaIn this study, the effects of two geometrical parameters of the re-entrant auxetic cells, namely, internal cell angle (θ) and H/L ratio in which H is the cell height, and L is the cell length, have been studied on the variations of Poisson’s ratio and fatigue life of Aluminum 7075-T6 auxetic structures. Five different values of both the H/L ratio and angle θ were selected. Numerical simulations and fatigue life predictions have...
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Fractographic-fractal dimension correlation with crack initiation and fatigue life for notched aluminium alloys under bending load
PublikacjaIn this study, fatigue fracture surfaces of aluminium alloy 2017-T4 notched specimens were investigated under cyclic bending to find an alternative failure loading index.. The surface topographies were measured on the entire fracture area with an optical profilometer for different loading conditions. Fatigue crack initiation life Ni and total fatigue life Nf were examined using standard surface topography parameters (such as, root...
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Ethylene decomposition on TiO2 - UV and Fluorescence lamp
Dane BadawczeData contain chromatograms recorded during decomposition of ethylene flowing over TiO2 through the quartz tubular shape reactor. TiO2 was coated onto glass plates with dimension of 2cmx2cm, in total 3 plates were used and placed inside reactor. Reactor was irradiated by UV (Special 'TL'E, Philips) or fluorescent (Lumilux, OSRAM) 3 ring-shaped lamps,...
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Change of exhaust gases concentration for reference SOFC and SOFC with LSCNT layer fueled by biogas mixture at 750 C
Dane BadawczeThe dataset changes of exhaust gases concentrations (CH4,CO,CO2,H2) over working time for SOFC with La0.27Sr0.54Ce0.09Ni0.1Ti0.9O3-s layer as well as reference SOFEC (unmodified). Concentrations were calculated based on the FTIR measurements and calibration curves presented in different dataset. Longterm measurements of SOFC were performed using in-house...
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Real-time working gas recognition system based on the array of semiconductor gas sensors and portable computer Raspberry PI
PublikacjaThe gas-analyzing systems based on the array of partially selective gas sensors and pattern-recognition techniques are potentially fast and low-cost alternative for other devices, like gas analysers. They give the possibility of recognition the type and the concentration of measured volatile compounds in their working environment. In this work we present the implementation of gas recognition system, in which the signals from an...
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Exhaust gas temperature measurements in diagnostic examination of naval gas turbine engines. Part I: Steady-state processes
PublikacjaThe article presents a possible method of detecting failures in the flow section and supply system of a naval gas turbine engine based on the exhaust gas temperature measured behind the gas generator. This temperature is a basic diagnostic parameter use for evaluating the technical state of the turbine engine in operation, and is monitored during engine start-ups, accelerations and decelerations of rotor units, and steady-load...
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Exhaust gas temperature measurements in diagnostic examination of naval gas turbine engines. Part III. Diagnostic and operating tolerances
PublikacjaThe third part of the article presents a method for detecting failures of the automatic engine control system with the aid of an exhaust gas temperature setter, specially designed and machined for this purpose. It also presents a procedure of identifying the operating tolerances and determining the diagnostic tolerances for the exhaust gas temperature recorded in the naval turbine engine during the start-up and acceleration processes....
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A comparative study of pentanol (C5 alcohol) and kerosene blends in terms of gas turbine engine performance and exhaust gas emission
PublikacjaThe growing demand for sustainable and clean energy sources provides the incentive for the development of alternative fuels. Simultaneously, the development of gas turbine technologies with flexible fuel supply systems enables the use of alternative non-fossil fuels that can play key roles in contributing to global efforts in meeting emissions targets. This paper presents the current state of knowledge on the production and potential...
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Modelowanie przestrzennych przepływów w reaktorach
PublikacjaWykazano, że powszechnie stosowane uproszczone modele reaktorów mają zasadniczą wadę - uwzględniają jedynie ich kubaturę. Zaproponowano stosowanie dokładniejszej metody - zewnętrznej krzywej rozkładu czasu przebywania cieczy w reaktorze.
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Kamila Klimaszewska dr inż.
OsobyUrodziła się w Warszawie (1979).W 1998 roku ukończyła I Liceum Ogólnokształcące im. Z. Krasińskiego w Ciechanowie i rozpoczęła studia na Wydziale Chemicznym Politechniki Gdańskiej. Po ich ukończeniu w 2003 rozpoczęła studia doktoranckie, uzyskując w 2008 roku stopień doktora nauk chemicznych w zakresie chemii (rozprawa doktorska „Osady atmosferyczne jako wskaźnik oceny stopnia zanieczyszczenia powietrza atmosferycznego”). W 2005...
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Searching for Solvents with an Increased Carbon Dioxide Solubility Using Multivariate Statistics
PublikacjaIonic liquids (ILs) are used in various fields of chemistry. One of them is CO2 capture, a process that is quite well described. The solubility of CO2 in ILs can be used as a model to investigate gas absorption processes. The aim is to find the relationships between the solubility of CO2 and other variables—physicochemical properties and parameters related to greenness. In this study, 12 variables are used to describe a dataset...
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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
PublikacjaWith 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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An application of advanced data processing methods to response analysis of electrocatalytic gas sensor
PublikacjaPrzedstawiono stosowane dotychczas oraz zaproponowano nowe metody analizy odpowiedzi czujników elektrokatalitycznych. Porównano ich właściwości.
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Przegląd technologii baz danych - stan obecny
PublikacjaW rozdziale przedstawiono sposoby klasyfikowania baz danych. Ponadto przeprowadzono ogólny przegląd dostępnych obecnie na rynku rozwiązań, z uwzględnieniem podziału na zastosowania małe i duże oraz na bazy komercyjne i bezpłatne. Powyższy przegląd pokazuje, że technologia baz danych stale się rozwija i próbuje dostosować do zmieniających się oczekiwań potencjalnych użytkowników. Kierunki rozwoju to coraz częstsze próby wykorzystania...
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Analiza jakości baz geolokalizacyjnych numerów IP
PublikacjaW pracy określono wymagania geolokalizacyjne dla telefonii VoIP przy realizacji usług ratunkowych. Przedstawiono metodykę oraz wyniki badań komercyjnych baz geolokalizacyjnych. Do badań wykorzystano dane geolokalizacyjne uzyskane od operatorów. Wnioski wypływające z badań są pesymistyczne, a ocena jakości badanych baz pod kątem trafności geolokalizacji użytkowników telefonów VoIP znacznie odbiega od samooceny firm, które te bazy...
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Hydrodynamic pressure in micro-and nano bearing gap
Publikacja.
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Comparison of developed gaze point estimation methods
PublikacjaThis paper presents the software part of an inexpensive hands-free eye tracking system. The system works using infrared illumination like most of the available eye trackers. Two methods allowing estimation the gaze point on computer screen are compared. Research on effectiveness of these methods is discussed and the better one is indicated.
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Chromatographic Examinations in the Gas Network Odourised by Tetrahydrothiophene
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Roadmap on dynamics of molecules and clusters in the gas phase
PublikacjaThis roadmap article highlights recent advances, challenges and future prospects in studies of the dynamics of molecules and clusters in the gas phase. It comprises nineteen contributions by scientists with leading expertise in complementary experimental and theoretical techniques to probe the dynamics on timescales spanning twenty orders of magnitudes, from attoseconds to minutes and beyond, and for systems ranging in complexity...