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Wyniki wyszukiwania dla: BAYESIAN INFERENCE
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Influence of dissolved organic nitrogen on surface waters
PublikacjaThe aim of this study was to determine the susceptibility of dissolved organic nitrogen (DON) contained in biologically treated wastewater disposed from municipal wastewater treatment plants (WWTPs) to biodegradability and bioavailability in a water environment. Additionally an evaluation was performed of the participation of this organic nitrogen fraction, including bioavailable DON (bDON), in the nitrogen balance for the Baltic...
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THE INFLUENCE OF QUESTION SET ON STUDENT QUIZ RESULTS
PublikacjaThe advent of e-Learning tools allowing for automated online test grading will probably increase the frequency of using tests in technical education. The same tools may provide for measures of test question quality. By purposely crafting question sets, test grading may serve different goals. The paper contains examples and test study with score histograms.
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Influence of edge subdivision on the convex domination number
PublikacjaWe study the influence of edge subdivision on the convex domination number. We show that in general an edge subdivision can arbitrarily increase and arbitrarily decrease the convex domination number. We also find some bounds for unicyclic graphs and we investigate graphs G for which the convex domination number changes after subdivision of any edge in G.
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ANALYSIS OF BRACE STIFFNESS INFLUENCE ON STABILITY OF THE TRUSS
PublikacjaThe paper is devoted to the numerical and experimental research of stability of a truss with side elastic supports at the top chord. The structure is a model of a real roof truss scaled by factor ¼. The linear buckling analysis and non-linear static analysis were carried out. The buckling length factor for the compressed top chord was calculated and the limit load for the imperfect truss shell model with respect to brace stiffness...
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Influence of the annealing conditions on the resistivity of Nd2CuO4 singlecrystals
PublikacjaW pracy wyznaczono temperaturową zależność oporności w płaszczyźnie ab dla dwóch grup kryształów Nd2CuO4 w zakresie 50-300 K.
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Finite-difference analysis of a loaded hemispherical resonator
PublikacjaPrzedstawiono analizę osiowo symetrycznej struktury otwartego rezonatora he-misferycznego zawierającego warstwowe ośrodki dielektryczne. W analizie wy-korzystano metodę różnic skończonych w dziedzinie częstotliwości (FDFD). Wcelu osiągnięcia wysokiej dokładności obliczeń zastosowano zaawansowane me-tody modelowania warunków brzegowych i granicznych.
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The influence of switching impulses on degradation of polyethylene insulation
PublikacjaW pracy omówiono czas inkubacji i wzrostu drzewka elektrycznego rozwijającego się w izolacji polietylenowej usieciowanej w układzie ostrze - płyta uziemiona. Badania przeprowadzono przy udarach łączeniowych nałożonych na napiecie przemienne (napięcie skojarzone). Wyniki badań wskazują na istotny wpływ ładunku przestrzennego wprowadzanego napięciem udarowym na inkubację i propagację drzewienia elektrycznego.
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Delay differential inequalities with initial time difference
PublikacjaPraca dotyczy nierówności różniczkowych z argumentami opóźnionymi przy różnych warunkach początkowych. Podano twierdzenia porównawcze dla takich nierówności. Podano też warunki dostateczne na istnienie ekstremalnych rozwiązań odpowiednich równań różniczkowych z argumentami opóźnionymi.
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The influence of nanomaterials on pyocyanin production by Pseudomonas aeruginosa
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The influence of adsorption chillers on CHP power plants
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Influence of the air phase on water flow in dikes
PublikacjaNumerical models are often used to describe flow and deformation processes occurring in dikes during flood events. Modeling of such phenomena is a challenging task, due to the complexity of the system, consisting of three material phases: soil skeleton, pore water and pore air. Additional difficulties are transient loading caused by variable in time water levels, heterogeneity of the soil or air...
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THE FUNCTION OF GREENERY IN A SKYSCRAPER: THE PLACEMENT AND ITS INFLUENCE
PublikacjaThe contrast between the high rise buildings; with their mostly geometric shapes, and the organic form of the greenery was visible even in the idea of a skyscraper. Yet the realizations and recent projects show emerging interest and the link between them. To better understand the developing function of the greenery in the context of a skyscraper, both literature and case studies are conducted. The aim is to relate the location...
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Degradation of reference tyres used for CPX measurements
PublikacjaMeasurements of tyre/road noise using the Close Proximity Method are based on reference tyres that are described in ISO/TS 11819-3. The standard specifies two tyres, namely "P1" and "H1" that should be used during measurements. To be used for measurements each tyre must fulfill certain conditions that are listed in the standard. The conditions are related to the tread pattern depth and rubber hardness. During experiments performed...
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Pavement ageing influence on tyre/road noise
PublikacjaRoad surface should be constructed in a way that ensures safe and comfortable traffic conditions, not only when it is newly paved but also during its entire lifetime. An important factor in the asphalt mixture design process is also the expected pavement durability and stability of pavement properties over time. In many countries, road surface starts to play a significant role in traffic noise reduction actions. Selecting a particular...
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Road texture influence on tire rolling resistance
PublikacjaTire rolling resistance is one of the most important resistive forces acting on road vehicles. It depends on tire and surface characteristics as well as vehicle operating parameters. This paper deals with the influence of road surface texture on rolling resistance of passenger car tires. Results of road measurements performed on variety of road surfaces are presented.
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Influence of Flat Lapping Kinematics on Machinability of Ceramics
PublikacjaNew tools for flat grinding of ceramics are presented in the paper. Electroplated CBN tools (B64 and B107) were used in a modified single-disc lapping machine configuration. The results from experiments, such as the material removal rate and surface roughness parameters are presented and analyzed. Numerical simulations, based on the model for the shape error and tool wear estimation in machining with flat lapping kinematics, are...
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INFLUENCE OF TIME ON THE BEARING CAPACITY OF PRECAST PILES
PublikacjaOne of the most popular types of foundations in layered subsoil with very differentiated soil shear strengths are precast piles. One of the reasons is a fact that we can well control the driving process during the installation of these piles. The principles of the assessment of bearing capacity and settlements of the piles given by Eurocode 7, concentrate on two main methods, i.e. Static Pile Load Tests (SPLT) and Dynamic Driving...
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Asynchronous time difference of arrival (ATDOA) method
PublikacjaA new method for a location service in the asynchronous wireless sensor networks is outlined. This method, which is called asynchronous time difference of arrival (ATDOA), enables calculation of the position of a mobile node without knowledge of relative time differences (RTDs) between measuring sensors. The ATDOA method is based on the measurement of time difference of arrival between the node and the same sensor at the discrete...
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Influence of IED Explosion on Lateral Dynamics of a Vehicle
PublikacjaThe paper describes field test results of heavy vehicle tire blow-outs. Both civilian and military vehicles are subjected to sudden loss of inflation pressure in one or more wheels, often accompanied by serious tire damage. Selected results related to the lateral dynamic of vehicle during and just after explosive tire destruction are reported
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Road texture influence on tyre rolling resistance
PublikacjaTyre performance, one of the critical factors for vehicle users, is strongly related to theroad surface characteristics, most notably to the pavement texture. Phenomena that occur at the tyre/road interface affect tyre friction (skid resistance), rolling resistance, tyre wear and tyre/road noise. This article deals with relationship between surface texture and rolling resistance of light and heavy vehicle tyres. Mean profile depth...
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INFLUENCE OF MEASURING CONDITIONS ON TYRE/ROAD NOISE
PublikacjaA decisive factor for the development of tyres and road surfaces is the ability to conduct representative and reproducible measurements of selected characteristics related to the interaction of tyres and road surfaces. In terms of tyre/road noise measurements in Europe two methods described in ISO/FDIS 11819-2 and ECE Regulation No.117 are used. The latter is compulsory for assigning the tyre noise labels. The methodologies differ...
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The Influence of PEG on Morphology of Polyurethane Tissue Scaffold
PublikacjaIn this study, polyurethanes (PU) were synthesized from oligomeric dihydroxy(etylene-butylene adipate), poly(ethylene glycol) (PEG), hexamethylene diisocyanate (HDI), 1,4-butanediol (BDO) as chain extender and stannous octoate as catalyst. PEG due to its hydrophilic character influences physical and chemical properties of PU. For testing were used PU having the following weigh contents of PEG: 0%, 7%, and 14%. Porous scaffolds...
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Influence of dopants on structure of polycrystalline bismuth niobate
PublikacjaBismuth niobate (BiNbO4) has attracted attention as a low-fired ceramics with promising microwave application potential. BiNbO4 ceramics was fabricated by mixed oxide method and sintered at temperature T<1000˚C. As the sintering aids a small amount of CuO oxide was used. The crystalline structure of the ceramic samples was examined by X-ray diffraction method at room temperature. The Rietveld refinement method was used for analysis...
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Services Marketing Influence On Marketing Theory Evolution,
PublikacjaThe discovery of differences between tangible goods and services in the 1970s was one of the most landmark moments in the history of marketing with an emphasis being shifted to the need for using different/diversified marketing activities while dealing with various industries and types of products. The objective of this article is to briefly characterise the evolution of the marketing thought and to present the crucial influence...
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A body position influence on ECG derived respiration
PublikacjaAn influence of a human body position on ECG derived respiration (EDR) signal is presented in the paper. Examinations were performed during deep, suspended and normal breathing for eight people in four different body positions. EDR and thoracic impedance signals were compared using correlation and standard deviation coefficients. Obtained results have shown that it is possible to monitor breath activity of people being in different...
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Influence of Property Division on the Technical Condition of a Building
PublikacjaIn this article, the correlation between a technical condition of a building and property division is analyzed and assessed. In the course of the usage of a building, the process of its degradation and the increase in the demands of property occupants can be observed. There is a direct connection between the difficult technical condition of a building and the fragmentation of the ownership structure. Although not considered in...
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Influence of different cultivation systems on bioactivity of asparagus
PublikacjaEvaluation of functional and bioactive compounds of Asparagus officinalis L. growing in conventional and organic greenhouse and conventional open –field farming was the aim of this research. Polyphenols in cladodes grown conventionally were higher than organic. Flavonoids and carotenoids were the highest in cladodes in open field. Organic spears were richer in total phenolics (+6.9% and +19.1%) and flavonoids (+4.7% and 16.8%)...
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Cavitation Erosion Resistance Influence of Material Properties
PublikacjaThe cavitation erosion is the phenomena that causes degradation of fluid flow machinery components due to repetitive implosion of cavitation bubbles adjacent to the solid surface. Cavitation erosion is a complex phenomenon, which includes not only hydrodynamic factors of liquid, but also properties of erodible material e.g. microstructure, hardness or Young modulus. In order to reduce the negative impact of erosion on machine components,...
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The importance and availability of marine certified reference materials
PublikacjaTraceability and reliable results are the two pillars of analytical methods; certified reference materials (CRMs) meet this requirement. ISO 17034:2016 credentials provide brief information on general requirements for the competence of Reference Material Producers (RMPs). The different types of CRMs have been produced in recent years for chemical analysis in food, water, soil, and sediment matrices in recent years. This review...
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Influence of the shoe type on the ground reaction forces
PublikacjaThe aim of this work was to estimate a relationship between the type of the footwear and ground reactions. Differences in medio-lateral, anterior-posterior and vertical reactions are compared for different shoe-types for male and female volunteers. Each of the participants gait was recorded in case of different shoes and without them, also stabilograms were analyzed. Results revealed differences in ground reaction forces for different...
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Influence of geometrical imperfections on stresses in cylindrical shells
PublikacjaResults of the numerical analysis of the shells of storage tanks of 50 000 m3 capacity with geometrical imperfections are presented in the paper. Results were verified by tensometric tests performed on the real tank. It was recognized that real geometrical imperfections cause increase of stresses in the tank construction by 30%.
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The Influence of Shear Deformation in analysis of plane frames
PublikacjaThe focus of the paper is to investigate the influence of shear deformation effect on the distribution of internal forces and frame deformation. To estimate shear deformation effect, the Timoshenko beam theory and the concept of shear deformation coefficients are used. Analysis of example frames gives the possibility to evaluate what have the most impact on size of shear deformation and in which type of frames the shear deformation...
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International Conference on Diagnostics of Processes and Systems 2022
PublikacjaWydarzenie stanowiło 15 ogniwo cyklu organizowanego od 1996 roku, naprzemiennie przez Politechnikę Warszawską, Uniwersytet Zielonogórski oraz Politechnikę Gdańską. Tegoroczna edycja konferencji została objęta patronatem JM Rektora Politechniki Gdańskiej, prof. Krzysztofa Wilde, Komitetu Automatyki i Robotyki Polskiej Akademii Nauk, Towarzystwa Konsultantów Polskich (FSNT-NOT) oraz Polskiego Stowarzyszenia Pomiarów Automatyki i...
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The influence of bulk solids on buckling strength of silos.
PublikacjaW artykule przedstawiono wyniki numerycznej anlizy wyboczenia ścian silosu osiowo-symetrycznego wypełnionego materiałem sypkim. Zachowanie ściany było modelowane mikropolarnym prawem sprężysto-plastycznym, natomiast zachowanie materiału sypkiego mikropolarnym prawem hipoplastycznym. Oszacowano wpływ materiału sypkiego na nośność wyboczenia silosów.
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Advances in Difference Equations
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The chemical and mechanical pressure influence on chromium luminescence
Dane BadawczeIn this study, we aim to compare the changes in the luminescence properties of Ga2O3:Cr3+ modified by Al or Sc ion substitution (chemical pressure) and hydrostatic pressure. We find the same behavior for Ga2–xAlxO3:Cr3+ and different behavior for Ga2–xScxO3:Cr3+ in terms of the optical properties under chemical and mechanical pressure. We consider Al...
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The influence of chitosan hydrogels on the morphology of L929 cells
Dane BadawczeRepresentative image at 20x magnification of L929 cells following 24 h of treatment with chitosan derivatives: chitosan dissolved in carbonic acid, chitosan dissolved in carbonic acid endotoxin free, chitosan dissolved in hydroacetic acid at 1:3 diluent factor. The scale bar is 100 µm; Microscope Olympus IX83, Tokyo, Japan).
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Influence of magnetic interaction on lattice dynamics of FeBO 3
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Influence of local electron interactions on phonon spectrum in iron
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Influence of Zeolite on the Silicone Pressure-Sensitive Adhesives Properties
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Influence of Silicone Additives on the Properties of Pressure-Sensitive Adhesives
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Influence of Technological Parameters on the Isomerization of Geraniol Using Sepiolite
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SELECTION OF REFERENCE PLANE BY THE LEAST SQUARES FITTING METHODS
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An experimental investigation of the influence of plasticity on creep degradation rate
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Raw material influence on volatile composition of agricultural distillates
PublikacjaCelem prezentowanej pracy było określenie za pomocą techniki HS-SPME/GC-MS charakterystycznych związków markerowych pozwalających na identyfikację pochodzenia surowcowego destylatów rolniczych. Przeprowadzone badania wskazały kilkanaście związków na podstawie obecności których można określić surowiec jakiego użyto przy produkcji destylatu.
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The influence of disinfection by-products on swimmers and swimming pool staff
PublikacjaW większości przypadków na basenach kąpielowych stosuje się chlorowanie jako metodę dezynfekcji wody. Produkty uboczne dezynfekcji, a także ich negatywny wpływ na zdrowie człowieka jest dobrze znany. Dezynfekcja wody prowadzi do tworzenia się produktów ubocznych. W pracy omówiono negatywny wpływ owych produktów zarówno na kąpiących się jaki i personel przebywający w hali basenowej
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The influence of glycols on thermal stability and chemical structure of glycolysates
PublikacjaW pracy omówiono wpływ glikoli (etano-1,2-diolu - heksano-1,6-diolu) na właściwości termiczne oraz budowę chemiczną glikolizatów. Analizy przeprowadzono dla półproduktów wytworzonych w jednym stosunku masowym odpadowego poliuretanu do glikolu wynoszącego 10:1.
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Influence of Humidity on Parameters of Amperometric Sensor with Nafion Membrane
PublikacjaPrzedstawiono wyniki badań wpływu umiarkowanych i wysokich wilgotności powietrza na sygnał, czułość i czas odpowiedzi prototypowego czujnika ditlenku siarki ze złotą elektrodą pracującą, próżniowo napyloną na powierzchnię membrany nafionowej. Zaprezentowano także wyniki badań impedancyjnych w zakresie potencjałów, w którym mechanizm utleniania ditlenku siarki jest kontrolowany aktywacyjnie i dyfuzyjnie. Parametry odpowiadające...
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The influence of preparing conditions on the properties of SrTi0.98Nb0.02O3-YSZ composite
PublikacjaZbadano wpływ warunków przygotowania na właściwości kompozytów SrTi0.98Nb0.02O3-YSZ jako potencjalnych warstw przejściowych między anodą a elektrolitem w tlenkowych ogniwach paliwowych SOFC. Udowodniono, że proces wstępnej obróbki temperaturowej substratów oraz sposób ich mielenia znacznie wpływa na przewodnictwo elektryczne badanych materiałów.
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The influence of the time of day on midazolam pharmacokinetics and pharmacodynamics in rabbits
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