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Search results for: CHANNEL STATIONARITY
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The Suzuki model of the multipath fading channel
Open Research DataThe dataset contains the results of simulations that are part of the research on modelling the multipath fading in the communication channel. The Suzuki fading envelope is generated using the Monte-Carlo simulation (MCS) in the LabVIEW programming environment.
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Preparation and evaluation of 1,3-alternate 25,27-bis[p-nitrobenzyloxy]-26,28-bis[3-propyloxy]-calix[4]arene-bonded silica gel stationary phase for LC
PublicationPrzeprowadzono syntezę nowej fazy stacjonarnej na bazie sililowej pochodnej 25,27-bis[p-nitrobenzyloksy]-26,28-bis-[3-propyloksy]kaliks[4]arenu zablokowanego w konformacji 1,3-naprzemianległej. Zbadano selektywność i sprawność fazy w stosunku do szeregu klas związków organicznych techniką wysokosprawnej chromatografii cieczowej.
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A Comparative Quantitative Structure-Retention Relationships Study for Lipophilicity Determination of Compounds with a Phenanthrene Skeleton on Cyano-, Reversed Phase-, and Normal Phase-Thin Layer Chromatography Stationary Phases
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Preparation and HPLC evaluation of a new 1,3-alternate 25,27-bis-[p-chlorobenzyloksy]26,28-bis-[3-propyloxy]-calix[4]arene silica bonded stationary phase
PublicationPrzeprowadzono syntezę nowej fazy stacjonarnej HPLC na bazie pochodnej 25,27-bis-[p-chlorobenzyloksy]26,28-bis-[3-propyloksy]-kaliks[4]arenu zablokowanego w konformacji 1,3-naprzemianległej. Zbadano selektywność i sprawność fazy w stosunku do aromatycznych izomerów pozycyjnych, alkilobenzenów, WWA, sulfonamidów i niesterydowych leków przeciwbólowych.
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Preparation and evaluation of 1,3-alternate 25,27-dibenzyloxy-26,28-bis-[3-propyloxy]-calix[4]arene - bonded silica stationary phase for high performance liquid chromatography
PublicationOtrzymano nową fazę stacjonarną na bazie dibenzyloksy pochodnej kaliks[4]arenu w konformacji 1,3-naprzemianległej, chemicznie związaną z żelem krzemionkowym. Przeprowadzano badania selektywności i sprawności tej fazy w rozdzielaniu izomerów konstytucyjnych benzenu i pochodnych fenoli. Zaprezentowano wyniki badania wpływu pH fazy ruchomej oraz stężenia metanolu na zdolność rozdzielczą nowej fazy stacjonarnej.
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Climate Change Impacts on Environmental and Human Exposure to Mercury in the Arctic
PublicationThis paper reviews information from the literature and the EU ArcRisk project to assess whether climate change results in an increase or decrease in exposure to mercury (Hg) in the Arctic, and if this in turn will impact the risks related to its harmful effects. It presents the state-of-the art of knowledge on atmospheric mercury emissions from anthropogenic sources worldwide, the long-range transport to the Arctic, and it discusses...
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Dynamic response of the PEM fuel cell to step change load
PublicationPrzedstawiono charakterystyki dynamiczne ogniwa paliwowego typu PEM o mocy 2.5 kW obciążanego sygnałem skokowym o wartościach od 1 A do 50 A.
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Assessment of the Water Needs of Fruit Plants in the Perspective of Climate Change
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Blood Pressure in 2016: increased impact factor and change of editors
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Epigenetic-Based Therapy—A Prospective Chance for Medulloblastoma Patients’ Recovery
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Codesigned Digital Tools for Social Engagement in Climate Change Mitigation
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„Popular Stoicism”. A New Chance for Practical Philosophy or Mere Illusion?
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Aquaporins in the male reproductive system: A chance for paternity or a road to nowhere?
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Expedited antenna optimization with numerical derivatives and gradient change tracking
PublicationDesign automation has been playing an increasing role in the development of novel antenna structures for various applications. One of its aspects is electromagnetic (EM)-driven design closure, typically applied upon establishing the antenna topology, and aiming at adjustment of geometry parameters to boost the performance figures as much as possible. Parametric optimization is often realized using local methods given usually reasonable...
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Stiffness change of abdominal prosthesis Optomesh™ under cyclic loading
PublicationAbdominal prostheses are used in humans for abdominal wall strengthening or reconstruction. From the mechanical point of view they are membranes, so their basic mechanical property is tensile stiffness. This property is experimentally identified for a selected implant, OptomeshTM. The obtained results are described herein. Uni-axial simple and cyclic tension tests are a basis for the analysis. Both kinds of tests allowed to distinguish...
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Photovoltaic module temperature stabilization with the use of phase change materials
PublicationThe worldwide growth of photovoltaics (PVs) has formed an exponential curve for more than four decades. During this period of time, PVs have evolved from a pure niche market of small-scale applications towards becoming a mainstream electricity source. The influence of temperature on the electrical parameters of crystalline silicon solar cells and solar modules is well described in the literature. In order to diminish these effects,...
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Identification of advanced manufacturing systems change factors - methodical aspects
PublicationCelem publikacji jest przedstawienie założeń metodyki identyfikacji kluczowych czynników zmian zaawansowanego systemu produkcyjnego. W publikacji przedstawiono zmiany występujące w otoczeniu przedsiębiorstwa związane z następującymi procesami globalizacji, wirtualizacji, sieciowości i narastającym znaczeniem inteligentnych organizacji. Wyróżniono wielowymiarowe przestrzenie otoczenia, zarówno tego szerszego, jak i bezpośredniego...
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Codesigned Digital Tools for Social Engagement in Climate Change Mitigation
PublicationDigital technologies and economies can strengthen participative processes and data- and knowledge-based sustainable urban development. It can also accelerate social integration and the efforts of urban dwellers towards more resilient urban environments. Gap: Most of the tools that strengthen participatory processes were not cocreated with stakeholders. Research shows that codesigned platforms driven by new technological advances...
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Preliminary studies on the effect of feed speed on the colour change of wood
PublicationThis paper presents the results of preliminary analyses of the effect of cutting parameters on changes in the colour of wood. Beech wood cut with use circular saw was analysed. The cutting parameter tested was the feed speed, represented by the feed per tooth. Sawing processes with different feed per tooth ranging from 0.0008 mm to 0.09 mm were analysed. It was observed that over the entire range of feed rate per tooth analysed,...
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Economic and Social Changes-Facts Trends Forecast
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Radiation Therapy-Induced Changes in Serum Lipidome of Head and Neck Cancer Patients
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Foreign Trade Changes in Poland and Slovakia as an Effect of Europeanization before and after the Accession
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Trace of Flicker Sources by Using Non-Parametric Statistical Analysis of Voltage Changes
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Annual changes of basic parameters of bottom sediments from the Klodnica River Catchment
PublicationThe Klodnica River Catchment is heavily contaminated ecosystem located in area of the Upper Silesia Industrial Region. In this area various forms of human activity can be observed (e.g. mining coal underground, metallurgy, power/heat plants, wastewater discharged directly into the river). The impact of industrial and municipal wastes on this aquatic system causes to changes in the hydrographic network of river and the waters quality. In...
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Diagnostic model of compression-ignition engine slide bearings for controlling the changes of their state
PublicationW artykule przedstawiono koncepcję umożliwiającą sterowanie procesami zmian stanów eksploatacyjnych silnika na podstawie modelu diagnostycznego łożysk ślizgowych. Jako model łożyska ślizgowego przyjęty został topologiczny model diagnostyczny, pozwalający na pełne i dokładne wykorzystanie oleju smarowego jako jednego z nośników informacji o stanie technicznym łożyska. Przedstawiona została przykładowa interpretacja stanów eksploatacyjnych...
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Simulation model for evaluation of packet sequence changed order of stream in DiffServ network
PublicationCurrent packet networks use a large variety of mechanisms which should support QoS (Quality of Service). One of those mechanisms is routing (calculating connection paths for incoming service requests). The most effective mechanism in QoS context is dynamic routing, which is based on the current network state described by the offered traffic matrix and link states. After switching between calculated available paths, connection...
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Endotoxin exposure and changes in short-term pulmonary function among sewage workers
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Changes in the Tertiary Education System in Pandemic Times: Comparison of Ukrainian and Polish Universities
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The Mechanisms of Changes in the Infrastructure of the Payment Card Market—A Comparative Analysis of Poland and China
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Changes in Water Quality for Sprinkler Irrigation in Selected Lakes of the Poznan Lake District
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Lifestyle Changes among Polish University Students during the COVID-19 Pandemic
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Intra- and intersubunit changes accompanying thermal activation of the HtrA2(Omi) protease homotrimer
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Changes of augmentation index early after ischaemic stroke predict functional outcome
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Monitoring Trends of Land Use and Land Cover Changes in Rajang River Basin
PublicationIn this study, the spatiotemporal changes in land use and land cover (LULC) were evaluated from 1992 to 2015 for the Rajang River Basin (RRB) located in the Sarawak State of Malaysia. The changes in water bodies cropped lands, and forests were assessed based on the available remotely sensed satellite data. Supervised classification with the Maximum-Likelihood-Algorithm technique was adopted for monitoring the LULC changes using...
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Association between changes in air quality and hospital admissions during the holi festival
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Hypsometric changes in urban areas resulting from multiple years of mining activity
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How to model temporal changes in nontargeted metabolomics study? A Bayesian multilevel perspective
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Changes of Nicotinamide Phosphoribosyltransferase Expressions in Thyroid Glands of Patients with Different Thyroid Pathologies
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The role of FNDC5 gene expression in irisin level changes accompanying thyroid pathologies
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Changes in the Microrna Expression Profile in Patients Undergoing Autologous Steam Cell Transplantation
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Total DNA Methylation Changes Reflect Random Oxidative DNA Damage in Gliomas
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Rapid Microbial Community Changes During Initial Stages of Pine Litter Decomposition
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Pathological Changes in Early Medieval Horses from Different Archaeological Sites in Poland
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Adapt or die—Response of large herbivores to environmental changes in Europe during the Holocene
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Lake surface changes of the Osa River catchment, (northern Poland), 1900–2010
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Reasons for changes in the value of unit pressure of compression products supporting external treatment
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THE IMPACT OF EMOTIONS ON CHANGES IN THE CORRELATION COEFFICIENT BETWEEN DIGITAL IMAGES OF THE HUMAN FACE
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Possible effects of the 1984 St. Clair River ice jam on bed changes
PublicationThis study examines the possible effect of the record ice jam of 1984 in the St. Clair River on river bed changes and conveyance. Numerical simulations were made to examine the flow and bed shear stresses during the jam formation and release periods. Simulation results indicate that the ice jam in the river did not cause a significant increase in bed shear stress compared to pre- and post-jam open water conditions. The insignificant...
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THE EFFECT OF DRYING INTENSITY ON THE COLOR CHANGES OF PINE WOOD (PINUS SYLVESTRIS L.)
PublicationThe effect of the selection of drying process parameters on the color change of Scots pine wood (Pinus Sylvestris L.) is presented. In this work the experimental studies have been performed. The research focused on the influence of drying intensity on the changes of color after drying process. Intensity of drying process was determined on the basis of the average drying gradient. To determine the color of wood before and after...
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Revealing dynamic changes of the volatile profile of food samples using PTR–MS
PublicationVolatile compounds carry valuable information regarding the properties of foodstuffs. Volatiles emitted from food can be used as, for example, indicators of quality, shelf-life, or authenticity. A better understanding of the multitude of transformations which occur during food processing could facilitate the optimisation of production, increase the desirability of food products, and also their wholesomeness. However, as some of...