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Search results for: FEW-LAYER BLACK PHOSPHORUS1,4-DIAMINE-9,10-ANTHRAQUINONENONCOVALENT FUNCTIONALISATIONELECTROCHEMICAL PROPERTIESELECTROCHEMICAL SENSOR
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 64 mA. Sample 91.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 64 mA. Sample 91.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 28 mA. Sample 115.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 28 mA. Sample 115.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 180 mA. Sample 103.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 180 mA. Sample 103. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 360 mA. Sample 103.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 360 mA. Sample 103. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 256 mA. Sample 91.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 256 mA. Sample 91.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 260 mA. Sample 82.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 260 mA. Sample 82.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
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Measurements and Visualization of Sound Intensity Around the Human Head in Free Field Using Acoustic Vector Sensor
PublicationThis paper presents measurements and visualization of sound intensity around the human head simulator in a free field. A Cartesian robot, applied for precise positioning of the acoustic vector sensor, was used to measure sound intensity. Measurements were performed in a free field using a head and torso simulator and the setup consisting of four different loudspeaker configurations. The acoustic vector sensor was positioned around...
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Włodzimierz Przybylski prof. dr inż.
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Modulacja szerokości impulsu w 9 fazowym silniku indukcyjnym
PublicationW referacie przedstawiono sposób modulacji szerokości impulsu falownika dziewięciofazowego. Metoda eliminuje wyższe harmoniczne prądu zasilającego, które mogłyby być generowane w sposób losowy przez falownik, a jednocześnie umożliwia iniekcję pożądanych wyższych harmonicznych do przebiegu prądu silnika. Przedstawiony model umożliwia jego adaptację w falownikowym układzie napędowym i wykorzystanie w wielofazowych układach napędowych...
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The methods of fretting wear prevention in machine elements : chapter 9
PublicationOpisano skutki procesu frettingu w elementach maszyn i warunki ich wystąpienia. Przedstawiono przegląd metod zapobiegania zużyciu frettingowemu i jego ograniczania. Opisano laboratoryjne badania zużywania frettingowego wybranych skojarzeń w warunkach umożliwiających ograniczanie zużycia.
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Alkylation of 9-substituted guanine derivatives with α,ω-dihaloalkanes
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Thermal and hydraulic phenomena in boundary layer of minijets impingement on curved surfaces
PublicationPresented work considers flow and thermal phenomena occurring during the single minijet impingement on curved surfaces, heated with a constant heat flux, as well as the array of minijets. Numerical analyses, based on the mass, momentum and energy conservation laws, were conducted, regarding single phase and two-phase simulations. Focus was placed on the proper model construction, in which turbulence and boundary layer modeling...
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[Rozdział] 4. Spójność pomiarowa
PublicationPrzedstawiono charakterystykę spójności pomiarowej jako niezbędnego elementu każdego pomiaru. Opisano strukturę metrologiczną oraz wymagania jakie muszą być spełnione w celu zachowania spójności pomiarowej.
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Anion recognition by phosphonium calix[4]arens: synthesis and physico-chemical studies
Publicationp-tert-butylcalix[4]arenes in the cone conformation, di-and tetra substituted at the narrow rim with charged phosphonium groups have been synthesies and characterised.
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Process control of air stream deodorization from vapors of VOCs using a gas sensor matrix conducted in the biotrickling filter (BTF)
PublicationThis article presents the validity, advisability and purposefulness of using a gas sensor matrix to monitor air deodorization processes carried out in a peat-perlite-polyurethane foam-packed biotrickling filter. The aim of the conducted research was to control the effectiveness of air stream purification from vapors of hydrophobic compounds, i.e., n-hexane and cyclohexane. The effectiveness of hydrophobic n-hexane and cyclohexane...
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Studia i plany zagospodarowania przestrzennego - pon 10-14
e-Learning CoursesKurs zawiera projektowanie i ćwiczenia dotyczące narzędzi planistycznych stosowanych na szczeblu gminy - w szczególności studiów uwarunkowań i kierunków zagospodarowania przestrzennego oraz miejscowych planów zagospodarowania przestrzennego.
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Spectroscopic and Wireless Sensor of Hematocrit Level
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Nanocrystalline undoped ceria oxygen sensor.
PublicationW pracy przedstawiono wyniki badań struktury i elektrycznych właściwości nanokrystalicznego czujnika na bazie niedomieszkowanego tlenku ceru. Zbadano wpływ ciśnienia parcjalnego tlenu na rezystancję cienkowarstwowego tlenku ceru. Konduktancja tlenku ceru w zakresie stężeń tlenu od 10ppm do 100% ma charakter eksponecjalny z parametrem -0.25. Zbadano szybkość odpowiedzi oraz wpływ dwutlenku azotu oraz dwutlenku siarki na odpowiedź...
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Selectivity of amperometric sulfur dioxide sensor.
PublicationW pracy przedstawiono wartości współczynników selektywności amperometrycznego czujnika ditlenku siarki względem siarkowodoru. Obliczenia wykonane zostały w oparciu o krzywe kalibracyjne wyznaczone dla zaprezentowanego wcześniej przez nas amperometrycznego czujnika ditlenku siarki. Analiza krzywych kalibracyjnych pod względem czułości oznaczenia oraz analiza wartości amperometrycznych współczynników selektywności odgrywa dużą pomocniczą...
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Sztuczny sensor smaku a zmysł smaku
PublicationOmówiono klasy smaku i działanie zmysłu smaku, który odgrywa ogromną rolę w ocenie jakości żywności metodami organoleptycznymi. Metody te nie są w pełni obiektywne, stąd poszukiwanie sztucznego sensora smaku. Przedstawiono szereg rozwiązań prowadzących do opracowania sensora smaku na większą skalę. Omówiono wybrane potencjometryczne i woltamperometryczne sensory smaku, a także ich handlowe modele.
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Electrocatalytic gas sensor response analysis
PublicationW pracy przedstawiono i porównano metody analizy odpowiedzi elektrokatalitycznych czujników gazów toksycznych. Opisane metody pozwalają na ekstrakcje z odpowiediz czujników informacji o rodzaju gazu oraz o jego stężeniu.
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Optimal Sensor Placement for Damage Detection
PublicationW pracy przedstawiono dwie konfiguracje czujników PZT do detekcji uszkodzeń w płytach. Omówion zalety i wady obu konfiguracji.
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Influence of Wood Moisture on Strength and Elastic Modulus for Pine and Fir Wood Subjected to 4-point Bending Tests
PublicationThe main purpose of this research paper was to determine the influence of the wood moisture on the strength and elastic modulus of pine and fir wood specimens subjected to the 4-point bending tests. Six bending tests for each wood species and for two different moisture level have been performed. Then, the advanced statistical analysis of the results has been carried out. On the basis of the obtained results, it has been noted that...
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Optical sensor of a person sitting on a chair and dressed in multi-layered clothes vital signs monitoring
PublicationAn optoelectronic device enhancing a smart chair functionality is presented in the paper. Its essential purpose is a detection of a sitting person presence on the chair by means of detecting the vital signs. Additionally, it could be used for determining of clothes layer parameters useful in adjusting a system of a capacitive electrocardiography.
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Does the addition of spices change the content of fluoride and antioxidants in black tea infusions?
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Optimization of a Fabry-Perot Sensing Interferometer design for an optical fiber sensor of hematocrit level
PublicationContinuous measurement of the hemato crit level in blo o d can p otentially b e p erformed using optical bre sensors. The FabryPerot interferometric sensors are a promising candidate in this application. The most imp ortant step in the design of the sensor is design of the sensing interferometer. Adequate cavity length and high interference contrast are two most imp ortant requirements in this application. The design metho d of...
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The cellular response of human colon carcinoma HCT116 cells to 4-methyl-1-nitroacridine derivative C-1748 treatment depending on p53 status
PublicationWykazano, że pochodna C-1748 indukuje apoptozę w komórkach linii ludzkich raków jelita grubego HCT116 p53+/+ i p53-/- w sposób zależny od czasu inkubacji i stężenia związku. Wskazują na to: pojawienie się frakcji komórek sub-G1, charakterystyczne zmiany w morfologii jąder komórkowych, zmiany w strukturze błony plazmatycznej. Ponadto, pod wpływem badanego związku komórki HCT116 p53+/+ wykazują większą podatność do ulegania apoptozie...
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Wear Resistance Enhancement of Al6061 Alloy Surface Layer by Laser Dispersed Carbide Powders
PublicationIn this paper, results of the experimental study on improving wear resistance in sliding friction of Al-based alloy are presented. The technique used involves the formation of a metal matrix composite (MMC) in the alloy surface layer by laser dispersion of carbide powders such as WC, TiC and SiC. For WC and TiC MMC surface coatings fabricated under conditions typical for most of the technologically relevant solid-state lasers (wavelength...
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Experimental and theoretical studies on the photodegradation of 2-ethylhexyl 4-methoxycinnamate in the presence of reactive oxygen and chlorine species
Publication2-Ethylhexyl 4-methoxycinnamate (EHMC) is one of the most commonly used sunscreen ingredient. In this study we investigated photodegradation of EHMC in the presence of such common oxidizing and chlorinating systems as H2O2, H2O2/HCl, H2O2/UV, and H2O2/HCl/UV. Reaction products were detected by gas chromatography with a mass spectrometric detector (GC-MS). As a result of experimental studies chloro-substituted 4-methoxycinnamic...
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Activation of peroxymonosulfate using carbon black nano-spheres/calcium alginate hydrogel matrix for degradation of acetaminophen: Fe3O4 co-immobilization and microbial community response
PublicationHerein, we focused on the degradation of acetaminophen (ACT) drug in liquid phase by peroxymonosulfate (PMS) activated by carbon black nano-spheres (CBNS). The nanostructured activator was immobilized into calcium alginate hydrogel matrix (CAHM) to avoid the washout of the fine nanostructures. The Langmuir modeling showed an insignificant contribution to the adsorption process in the removal of ACT. The basic pH conditions favored...
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A novel luminescent chemical sensor for the determination of Pb 2+ and Cu 2+ ions
PublicationSilica xerogel surface grafted with aminopropyl (PrNH2) groups was additionally treated by cetyltrimethylammonium bromide (CTAB) surfactant and ascorbic acid (asc) in alkaline solution. This material symbolized as SiO2-PrNH2-CTAB/asc, proved to be a stable luminescent material, exhibited an emission band peaked at 393 nm under excitation wavelength 335 nm. Time evolution of the band intensity suggests changes of defect concentration...
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High - voltage thin - layer fuses
PublicationZaprezentowano nową technologię i konstrukcję bezpieczników wysokonapięciowych wykorzystując technologie stosowane w mikroelektronice. Cienką warstwę topika naniesiono na quasiceramiczne podłoże. Wykonane modele bezpieczników charakteryzują się wysoką pewnością działania oraz małymi stratami I2t.
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Electrochemical analysis of aluminium passive layer
PublicationZbadano proces pękania warstwy pasywnej na aluminium dla liniowo narastających naprężeń rozciągających oraz różnych warunków elektrochemicznych. Badania prowadzono w 0.1M NaCl metodą dynamicznej elektrochemicznej spektroskopii impedancyjnej przy różnych poziomach polaryzacji anodowej. Określono progową wartość naprężeń, przy której następowało zniszczenie warstwy pasywnej wskutek działania sił rozciągających.
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Superconductivity in three-layer Na0.3CoO2*1.3H2O
PublicationOdkryto nadprzewodnictwo w trójwarstwowym związku uwodnionego sodowo -kobaltowego tlenku Na0.3CoO2 * 1.3H2O. Opisany został sposób syntezy, badania strukturalne (XRD i TGA) a także badania podatności magnetycznej.
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Modeling of nonlinear generation in a bubble layer
PublicationPraca prezentuje numeryczne podejście do zagadnienia liniowego i nieliniowego rozpraszania w warstwie z pęcherzykami. Badania numeryczne niekoherentnego rozpraszania wykonano stosując metodę Monte Carlo. Propagację i wsteczne rozpraszanie sygnałów badano w oparciu o równanie Rayleigha-Plesseta.
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Superconductivity in three-layer Na0.3CoO2·1.3H2O
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Analysis of nonlinear generation in bubble layer
PublicationRozważano zagadnienie liniowego i nieliniowego rozpraszania w warstwie z pęcherzykami. Badania numeryczne dotyczyły rozpraszania koherentnego i różnych własności rozchodzenia się fal wewnątrz warstwy z pęcherzykami jak odbicie od brzegu, dyspersja, tłumienie. Badania dla różnych rozkładów pęcherzyków przeprowadzono w oparciu o równanie Rayleigha-Plesseta.
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The effect of beech wood (Fagus sylvatica L.) steaming process on the colour change versus depth of tested wood layer
PublicationThe results of experimental research on the colour changes of beech wood at different depths of the tested layer are presented. Beech wood (Fagus sylvatica L.) dried in a conventional kiln was tested. Half of the wood samples were steamed prior to the drying process. Colour changes were measured at various depths after the face milling process was used to remove the material to expose to the deeper surface. The colour changes were...
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Interaction of 4-nitrothiophenol with low energy electrons: Implications for plasmon mediated reactions
PublicationThe reduction of 4-nitrothiophenol (NTP) to 4-4′-dimercaptoazobenzene (DMAB) on laser illuminated noble metal nanoparticles is one of the most widely studied plasmon mediated reactions. The reaction is most likely triggered by a transfer of low energy electrons from the nanoparticle to the adsorbed molecules. Besides the formation of DMAB, dissociative side reactions of NTP have also been observed. Here, we present a crossed electron-molecular...
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Simultaneous optical and electrochemical label-free biosensing with ITO-coated lossy-mode resonance sensor
PublicationIn this work we discuss a new label-free biosensing device based on indium tin oxide (ITO) overlaid section of a multimode optical fiber fused silica core. The sensor has been used to optical measurements also simultaneously interrogated electrochemically (EC). Due to optimized thickness and optical properties of ITO film, a lossy-mode resonance (LMR) could be observed in the optical domain, where electrical properties of the film...
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Łukowy wiadukt Pomorskiej Kolei Metropolitalnej w Gdańsku. Założenia projektowe i stan techniczny po 10 latach eksploatacji
PublicationArtykuł przedstawia historię, projektowanie i ocenę techniczną po 10 latach eksploatacji wiaduktu WK11 w Gdańsku, będącego częścią Pomorskiej Kolei Metropolitalnej. Opisuje proces budowy i wyzwania związane z rekonstrukcją historycznego mostu z 1914 roku, który został zniszczony podczas II wojny światowej. Autorzy szczegółowo analizują koncepcje projektowe, w tym rozważania nad schematem statycznym i zastosowanym materiałem. W...
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Cross-layer integration of network mechanisms for increasing efficiency of multimedia session support in IEEE 802.11s environment
PublicationWith an IEEE 802.11 wireless networks operating in Point-to-Multipoint mode being the most popular WLAN access technology employed today, it can be expected that a Wireless Mesh Network (WMN) based on the technology can provide significant advantages for such network systems. The IEEE 802.11s standard amendment provides the comprehensive set of mechanisms required to implement and deploy a WMN utilizing this widely popular technology....
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Linia metra nr 4 w São Paulo
PublicationSão Paulo w Brazylii to jedna z największych metropolii swiata. Ogromne potrzeby transportowe spowodowały, że w komunikacji zbiorowej bardzo duży nacisk kładziony jest na transport szynowy - zarówno naziemny jak i podziemny (metro). Jego stan obecny oraz perspektywy rozwoju, ze szczególnym uwzględnieniem oddanej do użytku w bieżacym roku linii metra nr 4, przedstawiono w niniejszym artykule.
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Evaluation of the Cathodic Electrodeposition Effectiveness of the Hydroxyapatite Layer Used in Surface Modification of Ti6Al4V-Based Biomaterials
PublicationThe important issue associated with the design and the fabrication of the titanium and titanium alloy implants is the increase of their biointegration with bone tissue. In the presented paper, the research results concerning the conditions used in the cathodic deposition of hydroxyapatite on the surface Ti6Al4V substrates primarily modified by the production of TiO2 nanoporous coatings, TiO2 nanofibers, and titanate coatings, are...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 534 mA. Sample J52.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 534 mA. Sample J52. The period of images is 30 minutes in order to observe slow temperature fluctuations. The images were taken with thermographic...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 189 mA. Sample 61.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 189 mA. Sample 61.The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint to ensure uniform surface...
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Enhanced voice user interface employing spatial filtration of signals from acoustic vector sensor
PublicationSpatial filtration of sound is introduced to enhance speech recognition accuracy in noisy conditions. An acoustic vector sensor (AVS) is employed. The signals from the AVS probe are processed in order to attenuate the surrounding noise. As a result the signal to noise ratio is increased. An experiment is featured in which speech signals are disturbed by babble noise. The signals before and after spatial filtration are processed...
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Measurements of ASON/GMPLS connection control layer performance according to the ETSI methodology
PublicationMeasurements of performance have always been crucial for evaluation of telecommunication systems, especially for implementation of network control elements responsible for connection handling which regards to bandwidth reservation, modification and release. That problem also arises in Automatically Switched Optical Network/Generalized Multiprotocol Label Switching (ASON/GMLPS) architecture, which is considered as one of the components...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 534 mA. Sample J53, run #1.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 534 mA. Sample J53, experiment run #1. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint...
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Thermographic imaging of electrochemical double layer capacitors during cycling charging - discharging 0 - 2,7 V at 420 mA. Sample 103, run#2.
Open Research DataDataset contains thermal images of prototype electrochemical double layer capacitor taken during cyclic charging - discharging. The sample was charged to 2,7 V and discharged to 10 mV by constant current 420 mA. Sample 103, experiment run #2. The images were taken with thermographic camera VigoCAM V50. The sample was covered by black graphite paint...