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Search results for: INDEKS CONLEY'A
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General form of fixed point indices of an iterated C^1 map andinfiniteness of minimal periods
PublicationDla zwartego podzbioru punktów periodycznych gładkiego odwzorowania podana zostaje formuła na indeksy iteracji. Wynik stanowi uogólnienie rezultatu Chowa, Malleta-Pareta i Yorke'a.
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Non-disjoint functional decomposition of index generation functions
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Linear and Non-linear Decomposition of Index Generation Functions
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Index filtrations and Morse decomposition for discrete dynamical systems
PublicationOn a Morse decomposition of an isolated invariant set of a homeomorphism(discrete dynamical system) there are partial orderings defined by the homeomorphism.These are called admissible orderings of the...
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Relations between the domination parameters and the chromatic index of a graph
PublicationIn this paper we show bounds for the sum and the product of the domination parameters and the chromatic index of a graph. We alsopresent some families of graphs for which these bounds are achieved.
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Index filtrations and Morse decompositions for discrete dynamical systems
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Fixed point index for $G$-equivariant multivalued maps
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Operation of gas turbine engines as the index of their reliability and safety.
PublicationW referacie przedstawiono propozycję ilościowej interpretacji działania turbinowego silnika spalinowego, które (podobnie jak przedstawione w fizyce działania Hamiltona i Maupertiusa oraz działanie wynikające ze zmiany pędu ciała) jest rozpatrywane jako wielkość fizyczna z jednostką miary zwaną dżulosekundą [dżulsekunda]. Wykazano też, że taka interpretacja działania może być uznana za wskaźnik niezawodności, a w szczególnych przypadkach...
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Quantitative interpretation of energy-based systems and index of their reliability
PublicationW artykule zaproponowano interpretację wartościującą działania, które rozumiane jest jako wielkość fizyczna o jednostce miary zwanej dżulosekundą. Przedstawiono oryginalną metodę analizy i oceny tak rozumianego działania dowolnego systemu energetycznego z uwzględnieniem jego niezawodności i bezpieczeństwa. Do uzasadnienia przydatności tak interpretowanego działania zastosowano jednorodny proces Poissona. Proces ten umożliwił skonstruowanie...
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Operation of technical systems as the index of reliability and safety ofthem
PublicationPrzedstawiono propozycję ilościowej interpretacji działania systemów technicznych, która jest rozpatrywana jako wielkość fizyczna z jednostką miary zwaną dżulosekundą [dżulxsekunda]. Wykazane zostanie też, że taka interpretacja działania może być uznana za wskaźnik niezawodności, a w szczególnych przypadkach - wskaźnik bezpieczeństwa funkcjonowania takiego sytemu. Do uzasadnienia takiej przydatności wspomnianego działania silnika...
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Ideas of the New European Bauhaus (NEB) in architectural education
PublicationThe New European Bauhaus (NEB) is an interdisciplinary project initiated by the European Commission in 2020 [1], based on three values: sustainability, beauty and community (social inclusion). Its aim is to support the European Green Deal programme [2] by accelerating the transformation of various economic sectors, including construction, to improve the quality of people’s lives and protect the natural environment. Even though...
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DFT studies of the refractive index of boron-doped diamond
PublicationThe density functional theory is one of the optimal solutions in calculation of optical properties of materials on the quantum scale. In this paper, we have investigated the refractive index of a boron-doped diamond structure with the usage of Atomistic Toolkit software from Synopsys. During this study, various methods and pseudopotentials were checked to obtain an optimal performanceaccuracy method for calculation of such materials....
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Sensitivity analysis as a tool to optimise Human Development Index
PublicationResearch background: Composite indicators are commonly used as an approximation tool to measure economic development, the standard of living, competitiveness, fairness, effectiveness, and many others being willingly implemented into many different research disciplines. However, it seems that in most cases, the variable weighting procedure is avoided or erroneous since, in most cases, the so-called...
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Complementary green analytical procedure index (ComplexGAPI) and software
PublicationIt is not easy to find appropriate tools for the evaluation of the “green”nature of analytical methodologies which involve the use of compounds, materials, or chemicals manufactured prior to the analytical step. Here, we propose a new metric for the evaluation of analytical procedures based on the GAC attributes. The proposed solution expands on the well-known green analytical procedure index by adding additional fields pertaining...
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Opinion about causes of framing of Kingston chest (box cooler) damage, on PSV vessel VS4411 DF-PSV (B-855)
PublicationThe subject of analysis is a damage of welded connection of box cooler framing segments, made as separate bars 50mm thickness, connected by the welds in corners. Studies of documents delivered by Customer shows cracks on the fusion of filet welds and twisting of box cooler frame. The subject of analysis is a damage of welded connection of box cooler framing segments, made as separate bars 50mm thickness, connected by the welds...
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Development of gas chromatography - tandem mass spectrometry procedure for development of pesticide residues in honey and honeybee samples
PublicationA new analytical procedure of determination of multiresidue of pesticides based on application of the modified QuEChERS approach at the step of sample preparation and technique GC-MS/MS has been developed and applied for studies the real honey and honeybee samples. Samples were collected from northern Poland (Pomerania). The proposed procedure enables for the determination of 34 and 30 pesticides residues respectively on honey...
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Pomiar efektywności kształcenia i produktywności publicznych szkół wyższych za pomocą nieparametrycznej metody DEA i indeksu Malmquista
PublicationW artykule przedstawiono ocenę efektywności działalności dydaktycznej prowadzonej przez publiczne szkoły wyższe (50 szkół wyższych w okresie 2009− 2012) wraz z pomiarem zmian produktywności w czasie. Wskaźniki efektywności zostały obliczone za pomocą nieparametrycznej metody DEA, a zmiany produktywności za pomocą indeksu Malmquista. Za nakłady działalności uczelni przyjęto: wartość przychodów z działalności dydaktycznej, liczbę...
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Pomiar efektywności kształcenia i produktywności publicznych szkół wyższych za pomocą nieparametrycznej metody DEA i indeksu Malmquista
PublicationW artykule przedstawiono ocenę efektywności działalności dydaktycznej prowadzonej przez publiczne szkoły wyższe (50 szkół wyższych w okresie 2009−2012) wraz z pomiarem zmian produktywności w czasie. Wskaźniki efektywności zostały obliczone za pomocą nieparametrycznej metody DEA, a zmiany produktywności za pomocą indeksu Malmquista. Za nakłady działalności uczelni przyjęto: wartość przychodów z działalności dydaktycznej, liczbę...
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Rheological and aging characteristics of the recycled asphalt binders with different rejuvenator incorporation methods
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Modelling of the finite amplitude waves interaction problem inside truncated cone.
PublicationModel matematyczny zjawiska oddziaływania fal o dużej amplitudzie dla przetwornika kołowego zbudowanego w oparciu o równanie KZK. Rozwiązania zagadnienia poszukiwano wewnątrz stożka ściętego. Do rozwiązania zagadnienia zastosowano metodę różnic skończonych. Podano przykładowe wyniki badań numerycznych.
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Analysis of passenger car crash with a cable barrier installed with anti-glare screens on a horizontal convex road curve with 400 m radius
PublicationHigh-tension cable barriers have been used on roads for a relatively short period compared with other types of road barriers. Hence, there remains a need for further research on various crash scenarios. An important issue is the performance of a cable barrier on a road curve, particularly when a vehicle impacts the convex side of the barrier. To address this issue, the analysis in this study considers a system of anti-glare screens...
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The Antimicrobial Potential of Bacteria Isolated from Honey Samples Produced in the Apiaries Located in Pomeranian Voivodeship in Northern Poland
PublicationThe principal objective of this study was to determine whether the honeys produced in apiaries located in Pomeranian Voivodeship (Northern Poland) contain bacteria producing metabolites with growth inhibition potential against important human and animal pathogens. The pathogens included Staphylococcus aurues, Staphyloccocus epidermidis, Escherichia coli, Listeria monocytogenes, Pseudomonas aeruginosa, and Candida albicans. From...
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Application of dispersive liquid-liquid microextraction for the determination of selected organochlorine pesticides in honey by gas chromatography - mass spectrometry
PublicationDispersive liquid-liquid microextraction (DLLME) is a rapid and easy technique that consumes minute amounts of organic solvents. In this work, we present chemometric study on optimization of DLLME parameters for the extraction of aldrin, endrin, lindane, alfa-endosulfan, 4,4'-DDT and its metabolites from honey matrix. Method quantification limits (MQLs) vary between 0.3 ng/g for 2,4'-DDE and 4,4'-DDE to 13.2 ng/g for alfa-endosulfan...
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Computationally efficient index generation unit using a Bloom filter
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Heuristic Minimization of Symmetric Index Generation Functions utilizing their Properties
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Construction of index generation unit using probabilistic data structures
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Soil quality index applied to Cucurbit production (Chaco, Argentina)
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<title>Basic properties of ring-index optical fibers</title>
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Heritability of Plasma Adiponectin Levels and Body Mass Index in Twins
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Development of Generalized Distribution Utility Index in Consumer-Driven Logistics
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Third harmonic index as a diagnostic tool of high-voltage varistors
PublicationThe recommended methods for standard testing of high-voltage varistors demand application of high voltages and intensive currents that is inconvenient and needs extensive power consumption. These methods require metallization of the prepared ZnO structures that increases costs of testing. Another method of varistor quality and endurance evaluation by the third harmonic index measurement at relatively low voltage range has been...
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Quality assessment of high voltage varistors by third harmonic index
PublicationHigh voltage varistors that consist of grained ZnO have to be tested before assembling into a surge arrester. The existing methods demand a usage of high voltages and intensive currents that is inconvenient, destructive and needs extensive power consumption. Additionally, these methods require metallization of the prepared varistor structures that increases costs. We propose another method of varistors quality assessments by a...
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Poultry meat freshness assessment based on the biogenic amines index
PublicationIn order to safeguard the well-being of the consumers, it is important to accurately determine the shelf life of poultry and poultry-based products. In this work, it was evaluated whether the measurement of the concentration of cadaverine, putrescine, histamine and tyramine can be used to assess the shelf-life of poultry meat stored in the different types of the containers. Based on the results it can be concluded that the collective...
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THERMOMECHANICAL PERFORMANCE OF FLEXIBLE POLYURETHANE FOAMS AS A FUNCTION OF THE ISOCYANATE INDEX
PublicationPolyurethane foams are very versatile materials applied in different branches of industry. Their popularity is attributed, among others, to the flexibility in engineering their mechanical performance by the adjustment of their formulations. One of the most crucial factors is the isocyanate index, determining the ratio between the free hydroxyl and isocyanate groups present in the polyurethane system. By the change of this ratio,...
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Millimeter Wave Negative Refractive Index Metamaterial Antenna Array
PublicationIn this paper, a novel negative refractive index metamaterial (NIM) is developed and characterized. The proposed metamaterial exhibits negative effective permittivity (εeffe) and negative effective permeability (µeffe) at millimeter wave frequency of 28GHz. This attractive feature is utilized to enhance the gain of a microstrip patch antenna (MPA). Two thin layers of 5 5 subwavelength unit cell array of NIM are placed above a...
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A new index for statistical analyses and prediction of travelling ionospheric disturbances
PublicationTravelling Ionospheric Disturbances (TIDs) are signatures of atmospheric gravity waves (AGWs) observed in changes in the electron density. The analysis of TIDs is relevant for studying coupling processes in the thermosphere–ionosphere system. A new TID index is introduced, which is based on an easy extension of the commonly used approach for TID detection. This TID activity index, which can be applied for individual Global Navigation...
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Accident susceptibility index for a passenger ship-a framework and case study
PublicationThe continuous monitoring and assessment of operational vulnerability and accident susceptibility of passenger ships is crucial from the perspective of ship and passenger safety. Despite the existing solutions for vulnerability monitoring, stemming mainly from watertight door operations, a comprehensive framework for accident susceptibility assessment and monitoring is missing in the literature. Therefore, this paper offers a...
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A New Classification of the Morphology of Complete Ponticulus Posticus on Cone Beam Computed Tomography
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Aortic stiffness is not only associated with structural but also functional parameters of retinal microcirculation
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In Vitro Antagonistic Effect of Gut Bacteriota Isolated from Indigenous Honey Bees and Essential Oils against Paenibacillus Larvae
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High Color Rendering Index of Rb2GeF6:Mn4+ for Light-Emitting Diodes
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Examples of a use of the optimal control at energy performance index in mechatronic approach
PublicationW pracy zaprezentowano przykłady zastosowania sterowania optymalnego przy energetycznym wskaźniku jakości w rozwiązaniach mechatronicznych. Rozważano układy mechaniczne modelowane dyskretnie. Metody sterowania optymalnego znalazły zastosowanie w robotyce (kołowe roboty mobilne jako układy silnie nieliniowe) oraz obróbce szybkościowej przedmiotów podatnych frezem kulistym.
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Allostatic load index and its clinical correlates at various stages of psychosis
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Basic ideas and advantages of the method of analytical regularization in wave optics: Overview
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A possibility of vibration surveillance of linear unsteady systems at energy performance index
PublicationW pracy przedstawiono metodę nadzorowania drgań za pomocą sterowania optymalnego przy energetycznym wskaźniku jakości. Rozważano sterowanie w liniowych układach niestacjonarnych pełnych oraz zredukowanych. Rozważania zilustrowano przykładem nadzorowania drgań pomostów wagi kolejowej podczas ważenia dynamicznego wagonów. Wykazano użyteczność oraz przydatność praktyczną proponowanej metody nadzorowania drgań w układzie pierwotnym...
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Modal control at energy performance index in reduced non-conservative system
PublicationW pracy rozważa się drgania niestacjonarnych układów mechanicznych modelowa-nych dyskretnie. Jednym ze sposobow nadzorowania tych drgań jest sterowanie optymalne przy energetycznym wskażniku jakości. Tymczasowe założenie o stac-jonarności układu daje możliwość wyznaczenia w trybie on-line optymalnego sygnału sterującego poszczególnymi postaciami drgań swobodnych układu a nas-tepnie - sterowanie układu niestacjonarnego wyznaczonym...
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The design of the prosthetic index finger actuated by shape memory alloy wires
PublicationZaprezentowano projekt palca wskazującego protezy ręki, w którym poszczególne człony napędzane są za pomocą niekonwencjonalnych efektorów - stopów metali z pamięcią kształtu (SMA - NiTi).
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Prediction of the Biogenic Amines Index of Poultry Meat Using an Electronic Nose
PublicationThe biogenic amines index of fresh chicken meat samples during refrigerated storage was predicted based on the headspace analysis using an electronic nose equipped with an array of electrochemical sensors. The reference biogenic amines index values were obtained using dispersive liquid–liquid microextraction–gas chromatography–mass spectrometry. A prototype electronic nose with modular construction and a dedicated sample chamber...
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A new tool for the evaluation of the analytical procedure: Green Analytical Procedure Index
PublicationA new means for assessing analytical protocols relating to green analytical chemistry attributes has been developed. The new tool, called GAPI (Green Analytical Procedure Index), evaluates the green character of an entire analytical methodology, from sample collection to final determination, and was created using such tools as the National Environmental Methods Index (NEMI) or Analytical Eco-Scale to provide not only general but...
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State-of-the-art ideas for engineering laboratory classes – virtual reality framework
PublicationNowadays challenges in science and technology are a driving force in the development of contemporary solutions in education. Virtual reality brings to an edge human imagination. In this paper, authors propose a framework for civil engineering laboratory classes which brings a new quality in this area. The framework shows how to provide learners with an environment where they can realize the health and safety hazards of construction...