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Search results for: panel sloneczny
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Experimental study of the use of electric car powered with stationary solar and electrochemical batteries in Northern Poland
PublicationThe subject of this paper is an experimental analysis of a Nissan LEAF electric car equipped with 24 kWh battery, powered from the standalone photo-voltaic (PV) charging station in Gdańsk, Poland. The calculations of charging process efficiency and range of test drives were conducted in two extreme situations (winter and summer) of sunlight and road conditions. Experiments were performed in the Laboratory of Innovative Power Technologies...
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Characterization of Mechanical and Bactericidal Properties of Cement Mortars Containing Waste Glass Aggregate and Nanomaterials
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Research of IPM electrical machine with flux barriers
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Evaluating structural characteristics of asphalt pavements by using deflection slopes from traffic speed deflectometer
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Formation and Growth of the Crack in Bonded Joints Under Mode I Fracture: Substrate Deflection at Crack Vicinity
PublicationAdhesive bonding is now commonly used in aircraft, cars, boats, etc. In these applications, thin panels are often bonded. In such thin structures, heterogeneous mechanical loading along the bondline edge (or potential crack front), is likely to arise due to 3D structural effects. The crack front and its vicinity is a special region, in that it is where structural properties of the adherend material meet those of the adhesive (discontinuity)....
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Description of the hydrodynamic pressure field function around the ship hull
PublicationW artykule przedstawiono metodę aproksymacji pola hydrodynamicznego okrętu, wykorzystując pole obliczone metodą elementów skończonych. Punkty kontrolne umieszczono w środku paneli rozmieszczonych na kadłubie statku, na powierzchni dna morskiego oraz na powierzchni swobodnej; w p-ktach tych znajdują się osobliwości w postaci źródeł, upustów i/lub dipoli. Przedstawione wyniki obliczeń zostały uzyskane przy użyciu tych pierwszych...
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Rozwój technologii fotowoltaicznych na świecie w dobie ogólnoświatowego kryzysu
PublicationDecentralizacja wytwarzania energii, wzrost udziału wykorzystania energii ze źródeł odnawialnych i rozwój kogeneracyjnych systemów wytwarzania energii elektrycznej i ciepła w wielu krajach postrzegane jest jako przyszłość energetyki. Bezpieczny długoterminowy plan rozwoju energetyki, wychodzący naprzeciw ochronie środowiska wymaga spełnienia dwóch warunków:• spadku podaży energii ze źródeł konwencjonalnych,• zwiększenia udziału...
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Photochemical degradation of pollutants in aqueous phase
PublicationTlenek tytanu (IV) wykorzystywany jest jako fotokatalizator służący oczyszczaniu wody i powietrza z wykorzystaniem tzw. powierzchni samoczyszczających się. Zastosowanie fotodegradacji w obecności TiO2 uzasadnione jest przede wszystkim do usuwania substancji toksycznych i/lub trwałych i jednocześnie występujących w małych stężeniach oraz jeżeli w procesie fotodegradacji można wykorzystać promieniowanie słoneczne. Wyniki badań wskazują,...
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The impact of equity pledge on inefficient investment: a perspective from family entrepreneurship
PublicationAs 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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Uncovering the invisible barriers to women’s success
PublicationIn 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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Does technology matter for economic development? Empirical evidence for Latin American Countries
PublicationThe 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
PublicationThe 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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System sterowania indukcyjnym silnikiem liniowym na bieżni liniowej - analiza problemów działania wykorzystanych protokołów komunikacyjnych
PublicationW 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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Financial Markets and Bankruptcy Systems: Is there a Relationship?
PublicationPurpose: Filling the cognitive gap in the theory of ex-post transaction costs, i.e., at the stage of enforcing market transactions by examining the relationship between friendliness/severity of the bankruptcy and restructuring law towards debtors, the level of development of financial markets, the effectiveness of the judicial system and the rate of debt recovery. Design/Methodology/Approach: In the research, the following methods...
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Reshaping financial systems: The role of ICT in the diffusion of financial innovations – Recent evidence from European countries
PublicationExchange-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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Enhancing Economic Development Through ICT-Based Governance: Evidence for Developing Countries
Publicationhis 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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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
PublicationPaper 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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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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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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Horizontally-split-drain MAGFET - a highly sensitive magnetic field sensor
PublicationWe propose a novel magnetic field sensitive semiconductor device, viz., Horizontally-Split-Drain Magnetic-Field Sensitive Field-Effect Transistor (HSDMAGFET) which can be used to measure or detect steady or variable magnetic fields. Operating principle of the transistor is based on one of the galvanomagnetic phenomena and a Gradual Channel Detachment Effect (GCDE) and is very similar to that of Popovic and Baltes's SDMAGFET. The...
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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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High-throughput Evaluation of Lipophilicity and Acidity by New Gradient HPLC Methods
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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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Theoretical opportunities and actual limitations of pH gradient HPLC
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Quantitative analysis of the particles distributions in reinforced composites
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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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Turning process monitoring of internal combustion engine piston’s cylindrical surface
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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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