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Search results for: ROAD SEFETY
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Efficacy and safety of idelalisib in patients with relapsed, rituximab- and alkylating agent-refractory follicular lymphoma: a subgroup analysis of a phase 2 study
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The value if independent investigations within integrated transport safety systems = Wartość niezależnych dochodzeń w ramach zintegrowanych systemów bezpieczeństwa
PublicationZnaczenie niezależnych dochodzeń w sprawie przyczyn wypadków transportowych jest wciąż w Polsce bagatelizowane, tak samo, jak prawo społeczeństwa do odpowiednich informacji dotyczących bezpieczeństwa. Tymczasem międzynarodowe doświadczenie pokazuje, że mogą one skutecznie poprawić bezpieczeństwo poprzez obniżenie kosztów, zwiększenie przepływu informacji o bezpieczeństwie między różnymi środkami transportu, ułatwiając rozwój nowych...
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Combination of High-Pressure Processing and Freeze-Drying as the Most Effective Techniques in Maintaining Biological Values and Microbiological Safety of Donor Milk
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Safety Analysis for the Operation Process of Electronic Systems Used Within the Mobile Critical Infrastructure in the Case of Strong Electromagnetic Pulse Impact
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Principles of patients selection and safety of repetitive transcranial magnetic stimulation – position statement of the Section of Biological Psychiatry of the Polish Psychiatric Association
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Managing competence and certifying persons responsible for functional safety = Zarządzanie kompetencjami i certyfikacja osób odpowiedzialnych za bezpieczeństwo funkcjonalne
PublicationThis article emphasizes that knowledge and competences of managers, engineers and specialists dealing with safety-related technologies for hazardous industry should be appropriately shaped in the technical education processes and training programmes fulfilling some quality requirements and assessment criteria. It concerns especially persons dealing with the functional safety solutions in the design and operation of the electric,...
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A guarantee of safety, a cautionary tale or a celebration? Popularity of true crime narratives through the lens of Mary Douglas’s concepts of pollution and defilement
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A New Method of the Load Compensation Use During Creation of Post Blackout Start-up Path in Power System
PublicationIn the paper a new method of effective use of load compensation during creation of post blackout start-up path is proposed. Theoretical assumptions and simulation results of an investigation are presented. An experiment performed in the Polish Power System is also described. This experiment proved that the method proposed by the authors is advisable. The method may be utilized by power system operators for power system restoration...
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Study on deformed steel columns subjected to impact load due to soft-storey failure in buildings during earthquakes
PublicationThe so called soft-storey failure is one of the most typical types of damage induced in buildings as the result of earthquake excitation. It has been observed during ground motions that the failure of an upper soft storey of a structure results in large vertical impact load acting on the lower floors. If the resistance of the structural members of the lower storeys is not sufficient it may further lead to progressive collapse of...
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Reference Electrodes with Ionic Liquid Salt Bridge: When Will These Innovative Novel Reference Electrodes Gain Broad Acceptance?
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Comparison the heat load as the results of tests on human subject in a hot environment with the results obtained from numerical simulation
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Insight into the microbial and genetic response of anammox biomass to broad range concentrations of different antibiotics: Linking performance and mechanism
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Acute Effects of High-Load vs. Plyometric Conditioning Activity on Jumping Performance and the Muscle-Tendon Mechanical Properties
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Zasady nabywania gruntów pod drogi publiczne w Polsce / The principles of land acquisition for public roads in Poland
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Enhancement of Countermovement Jump Performance Using a Heavy Load with Velocity-Loss Repetition Control in Female Volleyball Players
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Mathematical modeling and prediction of pit to crack transition under cyclic thermal load using artificial neural network
PublicationThe formation of pitting is a major problem in most metals, which is caused by extremely localized corrosion that creates small holes in metal and subsequently, it changes into cracks under mechanical load, thermo-mechanical stress, and corrosion process factors. This research aims to study pit to crack transition phenomenon of steel boiler heat tubes under cyclic thermal load, and mathematical modeling...
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Broad-Range Spectral Analysis for Chiral Metal Coordination Compounds: (Chiro)optical Superspectrum of Cobalt(II) Complexes
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Impact damage detection in smart composites using nonlinear acoustics—cointegration analysis for removal of undesired load effect
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GB-SAR in the Diagnosis of Critical City Infrastructure—A Case Study of a Load Test on the Long Tram Extradosed Bridge
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Load-carrying capacity and state of effort of tubes made of glass and basalt fibre reinforced polymer filled with concrete
PublicationOpisano badania eksperymentalne słupów wykonanych z rur polimerowych zbrojonych włóknami szklanymi i bazaltowymi. Część rur wypełniano wewnątrz betonem. Słupy z wypełnieniem niszczyły się w sposób powolny, wykazując wysoką nośność pokrytyczną, podczas gdy słupy z rur pustych niszczyły się w sposób gwałtowny, niesygnalizowany. Nośności uzyskane eksperymentalnie porównano do nośności obliczonych teoretycznie na podstawie procedur...
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Lateral load resistance of piled raft foundation - A case study of District Jail, Saidu Sharif, Swat Pakistan
PublicationPiled raft foundations under lateral loads are usually designed as a pile group, ignoring the contribution of the raft to resisting the lateral loads. In this paper, a case study was performed to determine the raft's contribution to the lateral load resistance. This study analyzed a pile-supported reinforced concrete retaining wall for two different foundation conditions, i.e., pile group foundation and pile raft foundation. Pile group...
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The Development of a Combined Method to Quickly Assess Ship Speed and Fuel Consumption at Different Powertrain Load and Sea Conditions
PublicationDecision support systems (DSS) recently have been increasingly in use during ships operation. They require realistic input data regarding different aspects of navigation. To address the optimal weather routing of a ship, which is one of the most promising field of DSS application, it is necessary to accurately predict an actually attainable speed of a ship and corresponding fuel consumption at given loading conditions and predicted...
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Fractographic-fractal dimension correlation with crack initiation and fatigue life for notched aluminium alloys under bending load
PublicationIn 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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The influence of dynamic load changes on temporary impedance in hydrogen fuel cells, selection and validation of the electrical equivalent circuit
PublicationTo achieve optimal performance of a fuel cell, a reliable monitoring and diagnostic method is required. The currently utilized methods give limited information or they are impossible to use under dynamic working conditions. To obtain comprehensive information about the fuel cell operation we utilized novel dynamic electrochemical impedance spectroscopy. Impedance measurements in dynamic mode were performed on a hydrogen fuel cell,...
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Efekty hydrauliczne i ekonomiczne zastąpienia zespołu hydroforni klasycznych przez pompownię
PublicationW referacie przedstawiono pozytywne efekty hydrauliczne i ekonomiczne zastąpienia siedmiu hydroforni ze zbiornikami wodno-powietrznymi przez pompownię sieciową z pompami o regulowanej wydajności przez przemiennik częstotliwości. Porównanie ciągłych pomiarów ciśnienia dowiodło o stabilizacji jego wartości w sieci po modernizacji podczas, gdy wskutek eksploatacji hydroforni amplituda pulsacji ciśnienia dochodziła do 0,3 MPa w odstępach...
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Jak badać i oceniać efekty współoddziaływania substancji na organizmy żywe?
PublicationOcena ryzyka i/lub zdrowotnego wymaga uwzględnienia wzajemnych współoddziaływań występujących pomiędzy związkami zanieczyszczającymi środowisko. Obiecującym narzędziem wspomagającym ten cel są biotesty. Przeprowadzone studium literaturowe wskazuje na przydatność testu Microtox z użyciem bakterii Vibrio fischeri w badaniach zjawiska współoddziaływania substancji zarówno w warunkach modelowych jak i rzeczywistych.
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Efekty funkcjonowania systemów zarządzania jakością w przedsiębiorstwach produkcyjnych w Polsce
PublicationNiniejszy rozdział dotyczy problematyki wdrażania systemów zarządzania jakością w przedsiębiorstwach produkcyjnych w Polsce. Autor przedstawia genezę rozwoju systemów zarządzania jakością w Polsce i przedstawia najważniejsze wyniki przeprowadzonych przez niego badań dotyczących efektów wdrażania tych systemów w przedsiębiorstwach produkcyjnych. Autor formułuje również wnioski odnośnie tego, jak wdrażać systemy zarządzania jakością,...
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Spinel of Nickel-Cobalt Oxide with Rod-Like Architecture as Electrocatalyst for Oxygen Evolution Reaction
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Structural response of existing spatial truss roof construction based on Cosserat rod theory
PublicationPaper presents the application of the Cosserat rod theory and newly developed associated finite elements code as the tools that support in the expert-designing engineering practice. Mechanical principles of the 3D spatially curved rods, dynamics (statics) laws, principle of virtual work are discussed. Corresponding FEM approach with interpolation and accumulation techniques of state variables are shown that enable the formulation...
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Modelling of Longitudinal Elastic Wave Propagation in a Steel Rod Using the Discrete Element Method
PublicationThe paper deals with the issue of modelling elastic wave propagation using the discrete element method (DEM). The case of a longitudinal wave in a rod with a circular cross-section was considered. A novel, complex algorithm consisting of the preparation of models and simulation of elastic waves was developed. A series of DEM models were prepared for simulations, differing in discretisation and material parameters. Additional calculations...
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On the influence of the acceleration recording time on the calculation of impact severity indexes
PublicationThe paper concerns with the analysis of normative requirements pertaining to experimental setup of a crash test and its numerical modelling. An overview of parameters describing the collision of a vehicle with a road restraining system is presented. A short description of a concrete road safety barrier is presented. A brief description of numerical modelling procedures for crash tests is given as well. The parametric influence...
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Problemy zagrażające bezpieczeństwu dzieci i ich rodziców w ruchu drogowym podczas podróży do szkoły na przykładzie Przymorza Małego w Gdańsku
PublicationArtykuł opisuje problemy wpływające negatywnie na bezpieczeństwo ruchu drogowego na obszarze Przymorza Małego, a także przedstawia pomysły, których realizacja powinna poprawić bezpieczeństwo pieszych, rowerzystów oraz kierowców pojazdów samochodowych poruszających się po tym obszarze. W pierwszej części przedstawiono informacje dotyczące stanu aktualnego analizowanego terenu, opisano zlokalizowane tutaj placówki oświatowe, a także...
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Shape-Depended Biological Properties of Ag3PO4 Microparticles: Evaluation of Antimicrobial Properties and Cytotoxicity in In Vitro Model—Safety Assessment of Potential Clinical Usage
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Sense of safety and opinions about COVID-19 vaccinations in Polish school teachers: The role of conspiracy theories belief and fear of COVID-19
PublicationThe co-occurrence of COVID-19 conspiracy theories (CCT) and fear of the coronavirus (FCV) can be linked to how safe people feel and how much they endorse vaccinations. School teachers were one of the vaccination priority groups in Poland. We conducted three cross-sectional studies (N1 = 1006; N2 = 1689; N3 = 627) to find out the potential interactive effects of CCT belief and FCV in predicting sense of safety (SoS; Studies 1-3),...
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The Method of Multi-criteria Analysis to Support the Decision on Load or Micro-generation Connection to a Low- or Medium-voltage Power Grid
PublicationThis paper presents a method that supports the decision in terms on selecting the best option of a load connection to a low- or medium-voltage power distribution grid, and of a micro-generation source connection to a low-voltage grid. The method is based on the search for the option with the lowest aggregate assessment measure, which is the weighted average of partial assessment measures determined for each of eight considered...
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Laboratory Load Model Based on 150 kVA Power Frequency Converter and Simulink Real-Time – Concept, mplementation, Experiments
PublicationFirst section of the paper provides technical specification of laboratory load model basing on 150 kVA power frequency converter and Simulink Real-Time platform. Assumptions, as well as control algorithm structure is presented. Theoretical considerations based on criteria which load types may be simulated using discussed laboratory setup, are described. As described model contains transformer with thyristor-controlled tap changer,...
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Influence of pitting corrosion on fatigue and corrosion fatigue of ship and offshore structures. Part II: Load - pit crack interaction
PublicationIn the paper has been discussed influence of stresses on general corrosion rate and corrosion pit nucleation and growth rate, whose presence has been questioned by some authors but accepted by most of them. Influence of pit walls roughness on fatigue life of a plate suffering pit corrosion and presence of so called "non damaging" pits which never lead to initiation of fatigue crack, has been presented. Possibility of prediction...
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The influence of rest interval on total training load during 10 sets of the bench press exercise performed to concentric failure
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How the toxicity of nanomaterials towards different species could be simultaneously evaluated: a novel multi-nano-read-across approach
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Resonator-Loaded Waveguide Notch Filters with Broad Tuning Range and Additive-Manufacturing-Based Operating Frequency Adjustment Procedure
PublicationThis article presents a new class of ring-resonator-loaded waveguide notch filters with a broad tuning range, low cost, and improved performance. The proposed approach employs a comple-mentary asymmetric split ring resonator coupled to a microstrip transmission line and excited in a rectangular waveguide. An equivalent circuit model is proposed to explain the working principle of the proposed notch filter. The adjustment of the...
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Screw displacement pile shaft deformations measured by vibrating wire and fiber optic systems during a static load test
PublicationThis paper describes a full scale static load test performed on a 400 mm diameter screw displacement pile equipped with four different strain measuring systems. Three types of vibrating wire strain gauges (VWSG) were used: global - retrievable, local attached to steel pipe and local concrete embedded. The fourth system was distributed fiber optic sensors based on Rayleigh back scattering (DFOS) - three in the pile cross section....
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Overcoming carboxylic acid inhibition by granular consortia in high-load liquefied food waste fermentation for efficient lactate accumulation
PublicationGranular sludge, a self-aggregating spherical biofilm, possesses better stability compared to flocculent sludge under extreme conditions. This study compared the ability of anaerobic granular sludge (AnGS) and flocculent waste activated sludge (WAS) to convert food waste (FW) into highly-valuable optically active lactic acid (LA), a central and versatile intermediate platform molecule. Different loadings (30–60 g volatile suspended...
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Calculation of the Effects of Implementing a DSM Electricity Demand Management Strategy Using the Example of Analysis of Changes in the Power System Load
PublicationThe paper presents the impact of implementing Demand Side Management (DSM) solutions through proper management and control of the process of charging and discharging electric car batteries. As a result, the daily load curves were shaped so as to fill valleys and cut down peaks. Therefore, the implementation of power demand management solutions had a significant impact on the power system operation. The impact of DSM solutions manifested...
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Design of Resilient Vehicle-to-Infrastructure Systems
PublicationVehicular ad hoc networks (VANETs) have recently gained noticeable attention due to advantages in improving road traffic safety, shaping the road traffic and providing infotainment opportunities to travellers. However, transmission characteristics following from the IEEE 802.11p standard and the high mobility of VANET nodes remarkably reduce the lifetime, reach and capacity of wireless links, and often lead to simultaneous disruptions...
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Praktyczne efekty analizy konstrukcji żelbetowych i sprężonych z uwzględnieniem zarysowania betonu
PublicationW artykule zawarto wybrane przykłady problemów strukturalnych związanych z modelowaniem zarysowania betonu zbrojonego. Zaprezentowano przykłady i studia przypadku. Model zarysowanego betonu pozwala przewidzieć naprężenia charakterystyczne w zbrojeniu i betonie. Pozwala również ocenić wielkość zarysowania oraz wpływ na redystrybucję sił wewnętrznych w zarysowanej konstrukcji. Taki rodzaj analizy jest dostępny w wysokiej jakości...
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Metodyka i efekty zastosowania SPC do monitorowania i sterowania procesami produkcyjnymi
PublicationW odróżnieniu od tradycyjnej metody zapewnienia jakości polegającej na inspekcji wyrobów gotowych, Statystyczne Sterowanie Procesami (SPC - Statistical Process Control) polega na monitorowaniu poszczególnych parametrów procesu lub wyrobu jeszcze w trakcie jego produkcji. Dzięki takiej obserwacji możliwe jest podejmowanie odpowiednich działań korekcyjnych, zanim potencjalna anomalia w procesie produkcyjnym spowoduje powstanie wyrobu...
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Rod-shaped gold nanoparticles exert potent candidacidal activity and decrease the adhesion of fungal cells
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PLANOWANIE BEZPIECZNYCH I „ZIELONYCH” SYSTEMÓW KOMUNIKACYJNYCH
PublicationIn order to achieve balanced forms of urban infrastructure, which ensure comfort, safety and spatial order, when designing new solutions it is necessary to adopt a multi-facet approach which will combine everything that the local residents need but will respond harmoniously to the existing cultural landscape. It is therefore necessary to work out complex undertakings for the sake of planning and developing urban space. Coherent...
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Large electric field effects on photoluminescence of organic Eu3+ complex-based electroluminescent emitters
PublicationW pracy zaobserwowano silne wygaszenie fotoluminescencji pod wpływem zewnętrznego pola elektrycznego w organicznym kompleksie europu Eu(III). Wygaszenie fotoluminescencji przypisano elektrycznopolowej dysocjacji ekscytonów oraz anihilacji ekscytonów na wstrzykniętym do próbki ładunku elektrycznym.
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Pollutant deposition via snowpack in the context of granite bufferingcapacity, Western Sudetes, Poland
PublicationAnaliza usuwania zanieczyszczeń z powierzchni śniegu oparta jest na danych zgromadzonych przes Stację Uniwersytetu Wrocławskiego usytuowaną na Szrenicy (E=50°48I, J=15°31I, H=1331 m a.s.l.).Pod koniec sezonu zimowego rdzenie profilu śnieżnego zostały pobrane i następnie kilka dni później podczas długiej wiosennej odwilży. Porównano w obu póbach wartości pH, ładunek wodorowy i skład chemiczny (kationy i aniony)