Filters
total: 8787
filtered: 5902
-
Catalog
- Publications 5902 available results
- Journals 118 available results
- Conferences 18 available results
- Publishing Houses 1 available results
- People 233 available results
- Inventions 17 available results
- Projects 28 available results
- Laboratories 3 available results
- Research Teams 7 available results
- e-Learning Courses 390 available results
- Events 143 available results
- Open Research Data 1927 available results
Chosen catalog filters
displaying 1000 best results Help
Search results for: FL OW PATTERN MAP
-
Influence of ESPAR antenna radiation patterns shape on PPCC-based DoA estimation accuracy
PublicationIn the article, we show the influence of three different electronically steerable parasitic array radiator (ESPAR) antenna radiation patterns on the overall direction of arrival (DoA) estimation accuracy when power-pattern cross-correlation (PPCC) algorithm, relying on received signal strength (RSS) values, is used for the estimation. The ESPAR antenna designs were obtained for three optimization goals, which resulted in different...
-
Tome-lapse X-ray tomography imaging of flow patterns in versatile silo model
PublicationThe paper introduces a new versatile silo model that was especially designed for in situ X-ray tomography studies of silo discharge for various flow conditions, namely concentric and eccentric. The presented work focuses on organic granular materials where low fraction of short-grain white rice is mixed with spheroidal sorghum particles. The high-quality tomography images combined with adequate image processing strategy allows...
-
Erroneous GNSS Strain Rate Patterns and their Application to Investigate the Tectonic Credibility of GNSS Velocities
PublicationThe paper concerns investigation of the credibility of tectonic interpretation of GNSS strain rates. The analysis was focused on stable regions, where the crustal deformations are small and the reliability of GNSS velocities is questionable. We are showing how the unreliable motion of stations affects calculated strains around them. We expressed distribution of local principal strains by a sinusoidal function and used them to investigate...
-
Comparative modeling of shear zone patterns in granular bodies with finite and discrete element method
PublicationW artykule przedstawiono wyniki numeryczne naporu piasku na ściankę szczelną. Obliczenia wykonano stosując metodę elementów dyskretnych i skończonych na bazie mikropolarnego hipoplastycznego prawa materiałowego. Porównanie obu podejść wykonano na poziomie makro i mikro. Wyniki numeryczne porównano także z wynikami doświadczalnymi.
-
Biodiversity of Weeds in Fields of Grain in South-Eastern Poland
Publication -
Development of Antimicrobial Phototreatment Tolerance: Why the Methodology Matters
Publication -
The Evolution of China’s Economic Engagement in Central and Eastern Europe
Publication -
EU-Russian Relations and the Eastern Enlargement: Integration or Isolation
Publication -
Analysis of the Water Footprint of Central and Eastern Europe Countries
Publication -
The evolution of China's economic engagement in Central and Eastern Europe
Publication -
Hybrid battery based on arylated carbon nanotubes and laccase
PublicationSingle-walled carbon nanotubes (SWCNT) were covalently modified with anthracene and anthraquinone and used for the construction of cathodes for biocatalytic reduction of dioxygen. The nanotubes with aromatic groups casted onto the electrode increased the working surface of the electrode and enabled efficient direct electron transfer (DET) between the enzyme and the electrode. The aryl groups enter the hydrophobic pocket of the...
-
Design of battery charging system update for glider launcher
PublicationThis paper presents an innovative solution for increasing life of lead-acid batteries used in a glider launcher. The study is focused on upgrading a charging system instead of a costly full replacement of it. Based on literature review, the advanced three-stage charging profile was indicated. The new topology of the power converter was proposed and a simulation model was developed. A simulation study was performed which leads to...
-
Technology-Driven Internationalization: Central-Eastern European Perspective
PublicationSince the 1990s of the twentieth century onward, Central-Eastern European countries have been extensively involved in these two processes—regarding increasing share of ICT and high-tech exports in country’s total export value—and additionally, across these economies, changes in the level of access to and use of ICT have been observed. The main target of this research is to contribute to the present state of the art, by proving...
-
Autonomous Battery Drive in Trolleybuses: an Overview of Practical Examples
PublicationBattery electric buses are believed to be means of transportation of the future. However, despite the continuous development of electrochemical batteries technology and the multitude of electric buses on offer, it is still no proved solutions that can be widely used. Charging is the one of the weakness point of the electric buses. Trolleybuses are alternative for them. Especially, trolleybuses equipment with traction batteries...
-
When digital government matters for tourism: a stakeholder analysis
PublicationDespite the importance of governance processes for destination management and the impact of digital technology on such processes, surprisingly little academic research has explored the use of digital technology to transform public governance in the tourism sector. This conceptual paper fills this gap by conducting a digital government stakeholder analysis for the tourism sector using the digital government evolution model as its...
-
Wave energy attenuation in fields of colliding ice floes – Part 2: A laboratory case study
Publication -
Mapping the spatial distribution of global anthropogenic mercury atmospheric emission inventories
PublicationW pracy przedstawiono procedury zastosowane do przygotowania map emisji rtęci ze źrodeł antropogennych na skale globalna i przedyskutowano wyniki obliczeń przedstawione na tych mapach. Dane o emisji użyte do przygotowania map zostały obliczone i opublikowane przez Pacyna et al. (2006). W niniejszej pracy przedstawiono mapy emsji dla roku 2000 oraz zmodyfikowane mapy emisji dla roku 1995.Mapy z rozkladem emisji w układzie gridów:...
-
Wpływ nadmiarowych danych wejściowych na jakość map rozbieżności pozyskanych za pomocą układu pięciu kamer w konfiguracji EBMCS
PublicationArtykuł dotyczy zastosowania układu kamer typu EBMCS (Equal Baseline Multiple Camera Set) składającego się z kamery centralnej oraz kamer bocznych. Na podstawie zdjęć wykonanych za pomocą tego układu można otrzymać mapy rozbieżności (ang. disparity map), które pozwalają na określenie odległości od kamer do obiektów znajdujących się w ich polu widzenia. Mapy te są wyższej jakości niż mapy otrzymane za pomocą kamery stereoskopowej....
-
Pattern Recognition Methods in Evaluation of the Structure of the Laboratory Data Biominerals, Antioxidant Enzymes, Selected Biochemical Parameters, and Pulmonary Function of Welders
Publication -
Burialscapes of Rab Island (North East Adriatic): The Role of Sepulchral Evidence in the Reconstruction of Roman and Late Antique Rural Settlement Pattern
PublicationOn the bases of archaeological and documentary data an overview of the burial evidence of Roman and late Antique date on the island of Rab (North East Adriatic, Croatia) is brought forth, spatially analysed and interpreted within the so-far defined rural settlement pattern. While aiding in the definition of burial practices and their diachronic changes, data derived from such evidence and interpreted from a social perspective,...
-
Expression-based decision tree model reveals distinct microRNA expression pattern in pediatric neuronal and mixed neuronal-glial tumors
Publication -
Effect of ground plane size on radiation pattern in IFF/SSR microstrip antenna on thick substrate fed by H type slot
PublicationW pracy pokazano numeryczne i eksperymentalne wyniki badania wpływu rozmiarówmasy na charakterystyki promieniowania anteny dla zastosowań IFF/SSR, zrealizowanej na grubym podłożu i zasilanej przez szczelinę typu H. Pokazane wyniki dla anteny oryginalnej porównano z wynikami uzyskanymi po zmniejszeniu wymiarów masy (w każdym z kierunków). Pokazano jak dalece można zminimalizować wymiary anteny, przy założonym poziomie listków bocznych.
-
Dressing method in matter + radiation quantum models
PublicationRozważane są modele typu Dicka i Jaynes-Cummings'a, i obliczono widmo zaburzonego modelu Dicka. Wyprowadzono równania łańcuchowe ubierania.
-
Functionalization of graphene: does the organic chemistry matter?
Publication -
Does technology matter in economic development and why?
Publication -
Work–life balance: Does age matter?
PublicationWork-life balance is a priority of EU policies but at the same time demographic change affects the labour market. Employers have to deal with the ageing of their employees and adjust human resource management to maintain their competitiveness. The purpose of the article is to answer research questions: whether the age of workers determines their assessment of the work-life balance, and whether there is a relationship between the...
-
Wave-induced stress and breaking of sea ice in a coupled hydrodynamic–discrete-element wave–ice model
Publication -
Wave-induced stress and breaking of sea ice in a coupled hydrodynamic–discrete-element wave–ice model
Publication -
Wave-induced stress and breaking of sea ice in a coupled hydrodynamic–discrete-element wave–ice model
Publication -
Some remarks on the pore water pressure dissipation patterns from the one-dimensional consolidation test
Publication -
Comparison of RP-HPLC columns used for determination of nucleoside metabolic patterns in urine of cancer patients
Publication -
Some remarks on the pore water pressure dissipation patterns from the one-dimensional consolidation test
Publication -
EP-1817: Radiotherapy-related changes in serum proteome patterns of head and neck cancer patients
Publication -
Simulated Annealing Based on Linguistic Patterns: Experimental Examination of Properties for Various Types of Logistic Problems
Publication -
New Technologies Adoption and Diffusion Patterns in Developing Countries. An Empirical Study for the Period 2000-2011
PublicationIn recent years, enormous changes are noted worldwide when broad adoption of Information and Communication Technologies (ICT). These unique technologies – often perceived as economic development incentives – have a great ability to spread at high pace and low cost in world countries, bringing to people opportunities to contribute to economic development and growth. New Technologies play a special role in developing countries, where...
-
Investigation into MPI All-Reduce Performance in a Distributed Cluster with Consideration of Imbalanced Process Arrival Patterns
PublicationThe paper presents an evaluation of all-reduce collective MPI algorithms for an environment based on a geographically-distributed compute cluster. The testbed was split into two sites: CI TASK in Gdansk University of Technology and ICM in University of Warsaw, located about 300 km from each other, both connected by a fast optical fiber Ethernet-based 100 Gbps network (900 km part of the PIONIER backbone). Each site hosted a set...
-
Numerical modelling of different airbag folding patterns and their influence on occupant responses in frontal vehicle impact
PublicationThis paper presented a procedure for airbag folding for the application in occupant safety studies and analysed the influence of different airbag folding patterns on the occupant severity in frontal impact. Airbags were folded in two patterns: zig-zag and top-roll, using two folding techniques: Initial Metric Method and Explicit Folding. The explicit folding was found to be more expensive in terms of preparation time. However,...
-
The Use of Cluster Analysis to Evaluate the Impact of COVID-19 Pandemic on Daily Water Demand Patterns
PublicationProper determination of unitary water demand and diurnal distribution of water consumption (water consumption histogram) provides the basis for designing, dimensioning, and all analyses of water supply networks. It is important in the case of mathematical modelling of flows in the water supply network, particularly during the determination of nodal water demands in the context of Extended Period Simulation (EPS). Considering the...
-
Electrohydrodynamic Flow Patterns in a Narrow Electrostatic Precipitator with Longitudinal Wire Electrode for Various Electrode Geometries
PublicationRecently narrow electrostatic precipitators (ESPs) have become a subject of interest because of their possible application in diesel engines. In this paper results of 2-dimensional (2D) Particle Image Velocimetry (PIV) measurements of the flow patterns in a narrow ESP for a various electrode geometries are presented. The PIV measurements were carried out in the observation plane that is perpendicular to the ESP duct. The ESP was...
-
Finite element study of patterns of shear zones in granular bodies during plane strain compression
PublicationW artykule przedstawiono obliczenia efektów skali na nośność fundamentu na piasku. Obliczenia wykonano przy pomocy mikropolarnego prawa hipoplastycznego. W obliczeniach wykorzystano stochastyczne rozkłady początkowego wskaźnika porowatości według rozkładu Gaussa.
-
Mikroekonomiczne uwarunkowania popytu MSP na usługi ubezpieczeniowe
PublicationArtykuł prezentuje wyniki badań, dotyczących praktyk ubezpieczeniowych przedsiębiorców sektora MSP, skupione głównie na mikroekonomicznych uwarunkowaniach popytu na usługi ubezpieczeniowe. Jego celem jest przedstawienie, w jakim stopniu MSP korzystają z możliwości ochrony przed ryzykami związanymi z prowadzoną działalnością.
-
Hybridization-driven gap inU3Bi4Ni3: AB209iNMR/NQR study
Publication -
Różne aspekty działalności innowacyjnej w sektorze MSP
PublicationW opracowaniu przedstawiono rozważania dotyczące znaczenia i specyfiki działalności innowacyjnej w małych i średnich przedsiębiorstwach.Określono charakterystyczne cechy tej grupy organizacji w odniesieniu do wprowadzania innowacji procesowej i organizacyjnej. Szczególną uwagę zwrócono na zalezności pomiędzy działalnościa innowacyjną a zarządzaniem wiedzą i normatywnymi systemami zarządzania.
-
Fixed point index for $G$-equivariant multivalued maps
Publication -
Lamb wave propagation in a single lap adhesive joint
Publication -
Hypoglycaemic, antioxidative and phytochemical evaluation of Cornus mas varieties
Publication -
Relationship of colour with the phytocompounds present in Cornus mas cultivars
Publication -
Photonics applications and web engineering: WILGA May 2013
Publication -
Teorie internacjonalizacji MSP- ewolucja i perspektywy rozwoju
PublicationW rozdziale dokonano przeglądu modeli internacjonalizacji - zarówno tych najczęściej przywoływanych i wykorzystywanych w badaniach MSP, jak i nowszych propozycji oraz ocena możliwości ich wykorzystania do badań MSP. Ponadto, rozdział skazuje na ewolucję teorii internacjonalizacji a także ważniejsze trendy w badaniach internacjonalizacji MSP.
-
MAC contention in a wireless LAN with noncooperative anonymous stations
PublicationRozpatruje się model sieci bezprzewodowej wykorzystywanej przez wzajemnie nieprzenikalne grupy stacji anonimowych. Przy ustalonej regule wyłaniania zwycięzcy rywalizacji o dostęp do medium, stacje posiadają swobodę wyboru strategii selekcji szczeliny rywalizacyjnej. Dla szerokiego zbioru możliwych strategii proponuje się metodologię ich oceny i testowania wydajności opartą na pojęciu zbliżonym do ewolucyjnej stabilności.