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Materiał biologiczny jako źródło informacji o narażeniu człowieka na środowiskowy dym tytoniowy
PublikacjaPalenie tytoniu stanowi istotne źródło zanieczyszczenia powietrza wewnętrznego. Szkodliwość palenia tytoniu potwierdzają zarówno badania doświadczalne, jak i liczne opracowania epidemiologiczne.W ramach pracy doktorskiej opracowano techniki pobierania i przygotowania próbek płynów biologicznych (ślina, mocz, sperma, pot, łzy, śluz pochwowy, wydzielina nosowa) do analizy na zawartość wybranych zanieczyszczeń, a zwłaszcza biomarkerów...
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TiO2 and Reducing Gas: Intricate Relationships to Direct Reduction of Iron Oxide Pellets
PublikacjaIn response to the imperative for sustainable iron production with reduced CO2 emissions, this study delves into the intricate role of TiO2 in the direct reduction of iron oxide pellets. The TiO2-dependent reducibility of iron oxide pellets utilizing H2 and CO gas across varied temperatures and gas compositions is thoroughly investigated. Our findings unveil the nuanced nature of the TiO2 effect, underscored by its concentration-dependent...
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Photovoltaic-Installation Performance in Central Europe on the Example of Poland
PublikacjaThe amount of the electric energy obtained from a photovoltaic (PV) installation depends on the energy of the radiation. Weather conditions differ strongly between various years even in the same season. Depending on the climatic conditions of a given location, fixed PV solar plants as well as one-axis and dual-axis tracking PV solar plants are being installed worldwide. The aim of this work is to analyse the sunlight intensity...
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Nowe poprzeczne łożysko ślizgowe typu Y.
PublikacjaW artukule przedstawiono nową koncepcję antywibracyjnego ślizgowego łożyska poprzecznego nazwanego łożyskiem Y (Pat WO0025035).Krótko scharakteryzowano najważniejsze problemy łożyskowania turbin parowych. Opisano zasadę działania nowego łożyska oraz przedstawiono jego wady i zalety.
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Uncovering the invisible barriers to women’s success
PublikacjaIn the area of science and higher education, as in business and politics, the job situation of women is improving, and the percentage of women on executive positions is increasing. However, there is still a serious underrepresentation of women in the highest decision-making bodies. Ladies also take part in the strategic institutional events less frequently. There are still serious disproportions in academic and management positions,...
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The impact of equity pledge on inefficient investment: a perspective from family entrepreneurship
PublikacjaAs an efficient and convenient financing method, equity pledges may have a heterogeneous impact on the inefficient investment of family firms. In order to verify this point, this paper takes A-share listed family enterprises from 2010 to 2021 as a research sample. It conducts an empirical test on the impact of equity pledges on inefficient investment in family firms by constructing a panel regression model. The results show...
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Does technology matter for economic development? Empirical evidence for Latin American Countries
PublikacjaThe spread of new Information and Communication Technologies (ICTs) has been recognized worldwide. ICTs are broadly perceived as tools facilitating economic growth and development, especially in backward countries. They are easy and cheap to adopt, require minimum skills for effective use, and bring opportunities for disadvantaged societies. They enable education, knowledge dissemination and sharing, and processing and storing...
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Relationship between wages, labour productivity and unemployment rate in new EU member countries
PublikacjaThe main aim of this article is to find out the extent to which relative labour productivity and relative unemployment rate changes determine relative wage changes. We use average annual macro-data for the period 2002-2013 for Poland and other 5 new EU members: Estonia, Hungary, Slovak, Czech Republic and Slovenia. Using Poland as benchmark, rst we examine the correlation between wage, productivity and unemployment rate changes...
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Reshaping financial systems: The role of ICT in the diffusion of financial innovations – Recent evidence from European countries
PublikacjaExchange-traded funds (ETFs) are among the fastest-growing types of innovative financial products. The emergence and spread of these instruments have been facilitated by the digital revolution. Information and communication technology (ICT) is profoundly reshaping the global economic landscape, laying solid foundations for unrestricted and unbounded flows of information and knowledge, eliminating information asymmetries, and furthering...
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System sterowania indukcyjnym silnikiem liniowym na bieżni liniowej - analiza problemów działania wykorzystanych protokołów komunikacyjnych
PublikacjaW artykule opisano stanowisko laboratoryjne z silnikiem liniowym na bieżni liniowej znajdujące się w Katedrze Energoelektroniki i Maszyn Elektrycznych na Wydziale Elektrotechniki i Automatyki Politechniki Gdańskiej oraz omówiono, w jaki sposób rozwiązano problemy związane z działaniem wykorzystanych w systemie sterowania protokołów komunikacyjnych. Stanowisko ma charakter dydaktyczny. W skład stanowiska wchodzi indukcyjny silnik...
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Enhancing Economic Development Through ICT-Based Governance: Evidence for Developing Countries
Publikacjahis shows novel empirical evidence on how e-government solutions enhance the emergence of inclusive societies, increase institutional quality, and through that channels dynamize economic development in developing countries. With this aim we examine digital development inequalities adopting 2 core ICT indicators: mobile cellular telephony and Internet users; and gross per capita income and Human Development Index to show the level...
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Hydrogels Based on Natural Polymers for Cardiac Applications
PublikacjaIn this work agar- and borax-based hydrogels with and without the addition of poly(vinyl alcohol) (PVA) at different concentrations were synthesized. Hydrogels were modified by the same amount of acetylsalicylic acid (ASA) which exhibits antithrombotic properties. The effect of modification by ASA on the properties of hydrogels was analyzed.
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Novel thermostable ssDNA-binding proteins from Thermus thermophilus and T. aquaticus-expression and purification
PublikacjaSklonowano w system ekspresyjny pET-30LIC Escherichia coli gen kodujący białka SSB-podobne Thermus thermophilus i T. aquaticus. Oczyszczono do homogenności białka SSB-podobne, a uzyskane preparaty umożliwiają wykonanie badań strukturalnych w/w białek.
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The Influence of Permanent Magnet Length and Magnet Type on Flux-control of Axial Flux Hybrid Excited Electrical Machine
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Performance Evaluation of an Axial Flux Machine with a Hybrid Excitation Design
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Comparison of EFD and CFD investigation of velocity fields for selected body-propeller configurations
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Comparison of EFD and CFD investigation of velocity fields for selected body-propeller configurations
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Testing for NRAS Mutations in Serous Borderline Ovarian Tumors and Low-Grade Serous Ovarian Carcinomas
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Appliance of High Speed Camera during Industrial Exploitation on the Example of Static and Dynamic Tests of Steel Probes
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Quantitative analysis of the particles distributions in reinforced composites
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High-throughput Evaluation of Lipophilicity and Acidity by New Gradient HPLC Methods
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Turning process monitoring of internal combustion engine piston’s cylindrical surface
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Five-Phase EV Drive with Switched-Autotransformer (LCCAt) Inverter
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Diversity of Students’ Unethical Behaviors in Online Learning Amid COVID-19 Pandemic: An Exploratory Analysis
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Technology Acceptance of MS Teams Among University Teachers During COVID-19
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Identification in a Laboratory Tunnel to Control Fluid Velocity
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Shipyard Crane Modeling Methods
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Deep learning approach for delamination identification using animation of Lamb waves
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TGF-β gene polimorphisms as risk factors for asthma control among clinic patients.
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TGF-β gene polimorphisms as risk factors for asthma control among clinic patients.
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Vibration Diagnostics of Rolling Mills Based on Nonlinear Effects in Dynamics
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Examination of the interactions occurring in the gas and liquid phases of atmospheric pressure glow discharge generated in contact with a liquid electrode leading to production of size-defined gold nanostructures
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Ultrasonic nebulization atmospheric pressure glow discharge — Preliminary study
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Coupling of cold vapor generation with an atmospheric pressure glow microdischarge sustained between a miniature flow helium jet and a flowing liquid cathode for the determination of mercury by optical emission spectrometry
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Decolorization of organic dyes solution by atmospheric pressure glow discharge system working in a liquid flow-through mode
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Application of Ion Exchangers in Speciation and Fractionation of Elements in Food and Beverages
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Development of direct-current, atmospheric-pressure, glow discharges generated in contact with flowing electrolyte solutions for elemental analysis by optical emission spectrometry
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Comparison of the performance of direct current atmospheric pressure glow microdischarges operated between a small sized flowing liquid cathode and miniature argon or helium flow microjets
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Interference-Free Determination of Trace Copper in Freshly Ripened Honeys by Flame Atomic Absorption Spectrometry Following a Preconcentration by Solid-Phase Extraction and a Two-Step Elution Process
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Solid phase extraction and sequential elution for pre-concentration of traces of Mn and Zn in analysis of honey by flame atomic absorption spectrometry
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Effect of the addition of non-ionic surfactants on the emission characteristic of direct current atmospheric pressure glow discharge generated in contact with a flowing liquid cathode
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Evidence for sex steroid receptors in feline brainstem
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Full wavefield processing by using FCN for delamination detection
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Theoretical opportunities and actual limitations of pH gradient HPLC
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Evaluation of the Effectiveness of Methods for Delimitation of the Boundaries of Registered Parcels in the Process of Modernization of Land and Building Registration
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Discussion of “Enhanced Pavement Performance and Improved Stability of Asphalt and Recycled Plastic Blends Modified by Exfoliated Clay Nanoplatelets”
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Measuring moisture damage of asphalt mixtures: The development of a new modified boiling test based on color image processing
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Mitigating Stripping in Asphalt Mixtures: Pretreatment of Aggregate by Thermoplastic Polyethylene Powder Coating
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Size and mass minimization of capacitor bank in a power converter DC line of DC drive with closed loop control system with PWM and current limitation
PublikacjaPaper deals with evaluation equations for power filter of AC-DC power converter which allows to provide size and mass minimization of capacitor bank in DC drive closed loop systems with PWM and current limitation. Reliability of provided equations is proved by simulation in MATLAB/Simulink
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Atmospheric opacity estimation based on IWV derived from GNSS observations for VLBI applications
PublikacjaThermal emission of atmospheric water vapor has a great influence on the calibration of radio astronomical observations at millimeter wavelengths. The phenomenon of an atmospheric water vapor emits noise signal and attenuates astronomical emission. At 22 GHz, integrated water vapor (IWV) obtained from global navigation satellite systems (GNSS) is strictly related to atmospheric opacity (τ0), which is a crucial parameter for data...