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Search results for: war refugees
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A Comparison of Basic Training Variables in the Standard and Cambered Bar Bench Press Performed to Volitional Exhaustion
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Ocena wykrywalności modelowych wad wąskoszczelinowych metodą pomiaru przestrzennego rozkładu magnetycznego pola rozproszonego
PublicationWykazano, że metoda pomiaru natężenia metodą pomiaru natężenia pola rozproszonego (MPR) w polu szczątkowym umożliwia skuteczne wykrywanie zewnętrznych wad szczelinowych o głębokościach 0,2 mm przy długości 2,5 mm, oraz wad punktowych o średnicy mniejszej od 1mm i głębokości 0,3 mm. Zwiększenie poziomu namagnesowania (pomiary w pełnym polu magnetycznym) umożliwiło wykrywanie wad o znacznie mniejszych rozmiarach. Wykazano również,...
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Influence of the engine cooling down period during short car stops on the average fuel consumption
PublicationW publikacji przedstawiono wpływ schłodzenia silnika podczas krótkich postojów pomiędzy jazdami na średnie zużycie paliwa. Przeprowadzono własne pomiary w czasie jazd miejskich w Gdańsku. Użyto samochodu osobowego z silnikiem o objętości skokowej 2 dm^3 z zapłonem siskrowym. Mierzono zużycie paliwa na trasach o długości 3-10 km. Krótko opisano sposoby wstępnego podgrzania silnika przed rozruchem.
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Heat transfer to car engine cooling system - influence of coolant flow through engine block
PublicationW artykule przedstawiono wyniki badań doświadczalnych nad wpływem nastawianej wydajności pompy cieczy na strumień odbieranego ciepła w silniku spalinowym. Wykorzystano hamownię silnikową z silnikiem o zapłonie iskrowym o objętości skokowej 1.8 dm^3. Przyjęto obciążenia silnika oporami ruchu samochodu na biegu bezpośrednim.
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Composites of polylactide and nano-hydroxyapatite created by cryomilling and warm isostatic pressing for bone implants applications
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Acute Effects of Different Blood Flow Restriction Protocols on Bar Velocity During the Squat Exercise
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Contrast Tempo of Movement and Its Effect on Power Output and Bar Velocity During Resistance Exercise
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Tyre/road noise of passenger car tyres, including tyres for electric vehicles - road measurements
PublicationThe paper presents the results from CPX measurements of tyre/road noise performed for selected passenger car tyres, including the tyres especially designed for electric vehicles. The tyres have been measured when rolling on several typical road surfaces in Norway and in Poland. In addition, the tyres have been measured on some very low noise road surfaces, such as a the poroelastic road surface (PERS). The measurement results...
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Wpływ parametru WSR procesu SBM na jakość estetyczną wytwarzanych pojemników z PET
PublicationAbstrakt w materiałach konferencyjnych konferencji Młodzi dla techniki 2015
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Polynomial analysis as a new way of describing dynamic impedance spectra – Differential and relative impedance spectra
PublicationModel measurements of an equivalent electrical system were carried out using the technique of Dynamic Electrochemical Impedance Spectroscopy. The measurement took the form of potentiodynamic changes imposed on the tested system. Using the possibility of continuous impedance measurements, an attempt was made to develop an original and innovative method of analyzing impedance spectrograms, which is termed polynomial analysis. As...
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Dynamic Charging of Electric Buses as a Way to Reduce Investment Risks of Urban Transport System Electrification
PublicationNight charging and fast charging are currently the two most common systems for charging electric buses. Despite the fact that numerous trial installations were started, neither of these two systems has obtained unqualified approval of the users. The alternative is to charge vehicles in motion - dynamic charging which combines the advantages of trolleybus transport and of electric buses. One of the advantages is the reduction of...
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Justifying the prolongation of the service life of the bearing structure of a tank car when using Y25 bogies
PublicationThis paper substantiates the use of Y25 bogies under tank cars in order to prolong their service life. The reported study has been carried out for a tank car with rated parameters, as well as the actual ones, registered during full-scale research. Mathematical modeling was performed to determine the basic indicators of the tank car dynamics. The differential equations of motion were solved by a Runge-Kutta method using the Mathcad...
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Speed estimation of a car at impact with a W-beam guardrail using numerical simulations and machine learning
PublicationThis paper aimed at developing a new method of estimating the impact speed of a passenger car at the moment of a crash into a W-beam road safety barrier. The determination of such a speed based on the accident outcomes is demanding, because often there is no access to full accident data. However, accurate determination of the impact speed is one of the key elements in the reconstruction of road accidents. A machine learning algorithm...
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The anion [Mg6Cl8Cp*5]-: a final intermediate on the way to the molecular donor-free Grignard compound MgClCp*?
PublicationOtrzymano i scharakteryzowano strukturalnie rzadki przypadek związku Grignarda pozbawionego donora. Struktura krystaliczna [Mg6Cl8Cp*5][AlCp*2] C6H6 zawiera zarówno metallocen (Cp*AlCp*) jak i odwrócony metallocen (MgCp*Mg).
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Chapter 1 : Supply system influence on behaviour of an elektromechanical model - four bar/dc motor
PublicationPraca opisuje zagadnienia wspólnego modelowania układu wieloczłonowego i napędu elektrycznego. Analizowanym układem mechanicznym jest płaski czworobok przegubowy. Analizowany mechanizm zamodelowano jako układ wieloczłonowy z zamkniętymi wielobokami ciał. Do wymuszenia ruchu układu wykorzystano model silnika prądu stałego. Zaproponowano kilka alternatywnych sposobów zasilania silnika. Układem referencyjnym jest źródło prądu stałego....
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Effects of Laser Remelting at Cryogenic Conditions on Microstructure and Wear Resistance of the Ti6Al4V Alloy Applied in Medicine
PublicationThe titanium and its alloys can be subjected to surface treatment, including laser treatment. In this work a new laser treatment at cryogenic conditions of Ti6Al4V alloy has been described. The work has been aimed at establishing whether such surface treatment could be suitable for implants working under wear in biological corrosive environment. The remelting has been made with the use of CO2 continuous work laser at laser power...
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Wpływ warunków techniczno - eksploatacyjnych na występowanie i rozwój wad w szynach kolejowych
PublicationW artykule scharakteryzowano odcinek doświadczalny oraz przeanalizowano sześć wybranych przypadków wpływu warunków techniczno-eksploatacyjnych na występowanie i rozwój wad.
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Systemy łączności dla potrzeb Morskiej Służby Poszukiwania i Ratownictwa SAR (Search And Rescue)
PublicationW artykule przedstawiono systemy łaczności alarmowej i operacyjnej SAR, dokonując krytycznej oceny aktualnego stanu łączności operacyjnej. W tym świetle scharakteryzowano konieczną modernizację tego stanu.
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Application of image processing methods for the characterization of selected features and wear analysis in surface topography measurements
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Vessel Scheduling Optimization Model Based on Variable Speed in a Seaport with One-Way Navigation Channel
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Per far midaglie di gesso: Giovanni Bernardino Bonifacio i sztuka portretu all'antica.
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Activity of Patents in Fuel Cells and Hydrogen Production in the Context of Passenger Car Fleet in the V4 Countries
PublicationThe hydrogen market in the world today is capable ovule and em-pirical evidence on activity of patents in fuel cells and hydrogen production islimited so far. Patent applications in zero-emission mobility in the aspect of fuelcells include: DAFC/DMFC&DMFC, PEMFC, SOFC, AFC, PAFC. As for thepatents relating to the hydrogen production, they concern low carbon, electrol-ysis and inorganic. The purpose of the study was to investigate...
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Effect of different crystalline structures on W/O and O/W/O wax emulsion stability
PublicationtThe possibility of emulsion stabilization using mineral and vegetable wax particles only (without sur-factant) was investigated. Mineral waxes, paraffin wax and ceresin, and a vegetable wax, carnauba wax,were used. The content of the wax particles and the water to oil proportion were found crucial for thestability of all emulsions. Some emulsions were also produced with a liquid wax (i.e. jojoba oil). Themultiple light scattering...
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Concentrations of monoaromatic hydrocarbons in the air of the underground car park and individual garages attached to residential buildings
PublicationThe paper describes the characteristics of a two-level underground car park and three individual garages attached to residential buildings, differing by the resident utilization habits, located in North Poland (Tri-City agglomeration area). The strategy of collecting the analyte samples from air in mentioned enclosed areas, concerning the determination of benzene, toluene, ethylbenzene, o-xylene and p,m-xylenes (BTEX) concentrations...
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Method of sum of power losses as a way for determining the ki coefficients of energy losses in hydraulic motor
PublicationThis paper shows application of the method of sum of power losses to determining energy losses which occur in hydraulic rotary motor in situation when not all laboratory data are at one’s disposal or when no use is made of data contained in catalogue charts. The method makes it possible to determine the coefficients ,ki , of energy losses occurring in the motor. The method of sum of power losses is based on the approach proposed...
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Noise and Rolling Resistance Properties of Various Types of Winter Tyres Compared to Normal Car Tyres
PublicationTo cope with winter weather conditions, potentially including snow and ice, it is common to use winter tyres, or ”all-seasons” tyres assumed to be safe both in summer and winter. In some northern countries, winter tyres are mandatory. Traditionally, it has been assumed that winter tyres are noisier than normal tyres (here called summer tyres) and winter tyres equipped with studs are assumed to be very noisy.This paper presents...
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Flood Classification in a Natural Wetland for Early Spring Conditions Using Various Polarimetric SAR Methods
PublicationAbstract--- One of the major limitations of remote sensing flood detection is the presence of vegetation. Our study focuses on a flood classification using Radarsat-2 Quad-Pol data in a natural floodplain during leafless, dry vegetation (early spring) state. We conducted a supervised classification of a data set composed of nine polarimetric decompositions and Shannon entropy followed by the predictors' importance estimation to...
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Comparison of Absorbed and Intercepted Fractions of PAR for Individual Trees Based on Radiative Transfer Model Simulations
PublicationThe fraction of absorbed photosynthetically active radiation (fAPAR) is a key parameter for estimating the gross primary production (GPP) of trees. For continuous, dense forest canopies, fAPAR, is often equated with the intercepted fraction, fIPAR. This assumption is not valid for individual trees in urban environments or parkland settings where the canopy is sparse and there are well-defined tree crown boundaries. Here, the distinction...
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Hyperbolic heat conduction at a microscopic sliding contact with account of adhesion-deformational heat generation and wear
PublicationDifferent non-Fourier models were proposed to simulate temperatures in materials subjected to extremely fast thermal disturbances, when the speed of heat propagation should be concerned. The present study investigated temperature and heat balance at a microscopic sliding contact during a single frictional interaction based on the Cattaneo-Vernotte hyperbolic heat conduction equation. Two fundamental features of friction, namely,...
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On the Role of Polarimetric Decomposition and Speckle Filtering Methods for C-Band SAR Wetland Classification Purposes
PublicationPrevious wetlands studies have thoroughly verified the usefulness of data from synthetic aperture radar (SAR) sensors in various acquisition modes. However, the effect of the processing parameters in wetland classification remains poorly explored. In this study, we investigated the influence of speckle filters and decomposition methods with different combinations of filter and decomposition windows sizes on classification accuracy....
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Modelowanie przestrzennego rozkładu natężenia magnetycznego pola rozproszonego dla wad wzorcowych w płytach
PublicationW pracy przedstawiono model, przy pomocy którego można obliczyć wektor indukcji rozproszonego pola magnetycznego od wady. Przeprowadzono badania eksperymentalne służące weryfikacji tego modelu. W badaniach wykorzystano dwie wady o geometrii prostopadłościanu wydrążone elektro-iskrowo w stalowej płycie. Dla składowej normalnej wektora indukcji pola magnetycznego występowały najmniejsze rozbieżności pomiędzy wynikami pomiarowymi...
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Analiza wad powierzchni gorącowalcowanych wyrobów stalowych = Hot rolled sections surface defects analysis
PublicationZanalizowano hutnicze wady powierzchni dwuteowników walcowanych na gorąco, głebokość zdefektowanych obszarów i zmiany mikrostruktury w tych obszarach.
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Anais de História de Além-Mar (Lisboa)
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Egyptian Journal of Ear, Nose, Throat and Allied Sciences
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LAW AND SOCIAL INQUIRY-JOURNAL OF THE AMERICAN BAR FOUNDATION
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Ars Judaica-The Bar Ilan Journal of Jewish Art
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Big Beautiful Buildings: Eine Schönheit, viele Maßstäbe - urbane Landschaften der Nachkriegsmoderne in Europa / Big Beautiful Buildings: one beauty, many scales - urban landscapes of the post-war modernism across Europe
PublicationMassive urbanization in Europe is not a phenomenon that began only in the 20th century. The roots of this process can be traced back two centuries. With the end of the Second World War the specific conjunction of powerful forces together changed the landscape of European cities. Urbanization was undoubtedly one of them. Among other factors, Musterd and van Kempen (2005) correctly itemized not only objective processes that can be...
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On my way to global science - 1933-2015 memoirs". A volume of memoirs by professor Wiesław Maria Grudzewski
PublicationI wish to express my graditude for the oportunity to read excellent on the life and academic work of Professor Grudzewski, and outstanding scientist and unquestioned authority on economic sciences in the area of management science. Professor Grudzewski had an influence on the events presented in his memoirs through his acquaintances and associates.
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Authentication of whisky due to its botanical origin and way of production by instrumental analysis and multivariate classification methods
PublicationHeadspacemass-spectrometry (HS-MS), mid infrared (MIR) and UV–vis spectroscopywere used to authenticate whisky samples from different origins and ways of production ((Irish, Spanish, Bourbon, TennesseeWhisky and Scotch). The collected spectra were processed with partial least-squares discriminant analysis (PLS-DA) to build the classification models. In all cases the five groups ofwhiskieswere distinguished, but the best resultswere...
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Combining Satellite Imagery and Numerical Modelling to Study the Occurrence of Warm Upwellings in the Southern Baltic Sea in Winter
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Short-Term Blood Flow Restriction Increases Power Output and Bar Velocity During the Bench Press
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A Novel IoT-Perceptive Human Activity Recognition (HAR) Approach Using Multi-Head Convolutional Attention
PublicationTogether with fast advancement of the Internet of Things (IoT), smart healthcare applications and systems are equipped with increasingly more wearable sensors and mobile devices. These sensors are used not only to collect data, but also, and more importantly, to assist in daily activity tracking and analyzing of their users. Various human activity recognition (HAR) approaches are used to enhance such tracking. Most of the existing...
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Tribological and thermal behavior with wear identification in contact interaction of the Ti6Al4V-sintered carbide with AlTiN coatings pair
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Wear of carbide inserts during turning of C45 steel in dry cutting conditions and in presence of emulsion mist
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SPECTROPHOTOMETRIC DETERMINATION OF FOUR NAPHTHALENE SULFONATES IN SEAWATER AFTER THEIR MOLECULARLY IMPRINTED STIR BAR SORPTIVE EXTRACTION
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Tribological Anti-Wear and Extreme-Pressure Performance of Multifunctional Metal and Nonmetal Doped C-based Nanodots
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Flavonoids as tyrosinase inhibitors in in silico and in vitro models: basic framework of SAR using a statistical modelling approach
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Dynamic deformations tests of Ni3Al based intermetallic alloy by using the split Hopkinson pressure bar technique
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Impact of movement tempo on bar velocity and time under tension in resistance exercises with different external loads
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Praktyczna ocena zalet i wad stosowania osadów ściekowych do rekultywacji terenów zdegradowanych technicznie.
PublicationPrzedstawiono wyniki badań ukierunkowanych na ocenę skuteczności rekultywacji przeprowadzonej na dwóch obszarach zdegradowanych technicznie: składowisku odpadów paleniskowych oraz wyrobisku pożwirowym. Podstawowym celem zrealizowanych prac było określenie chemicznego oddziaływania ustabilizowanych osadów ściekowych na środowisko gruntowe. Udowodniono glebotwórcze właściwości osadów ściekowych, a jednocześnie celowość i zasadność...