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Search results for: BIOMETRIC PEN
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Asymptotic behaviour in the set of nonhomogeneous chains of stochastic operators
PublicationWe study different types of asymptotic behaviour in the set of (infinite dimensional) nonhomogeneous chains of stochastic operators acting on L1(μ) spaces. In order to examine its structure we consider different norm and strong operator topologies. To describe the nature of the set of nonhomogeneous chains of Markov operators with a particular limit behaviour we use the category theorem of Baire. We show that the geometric structure...
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Application of muscle model to the musculoskeletal modeling
PublicationThe purpose of this paper is to investigate new fusiform muscle models. Each of these models treats a muscle as a system composedof parts characterized by different mechanical properties. These models explain the influence of differences in the stiffness of lateral parts and the degree of muscle model discretization. Each muscle model is described by a system of differential equations and a single integro-differential equation....
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The use of Response Surface Methodology for reliability estimation of aluminum silo subjected to wind load
PublicationAn axisymmetric aluminum silo model with a single, standardized geometric imperfection of its lateral surface is considered. The silo is wind – loaded only. The paper is focused on the critical, or limit value of wind pressure, both producing a loss of stability of the silo. This value is affected by vertical coordinate (position) of the imperfection and the angular relation between the imperfection and the wind direction. Reliability...
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Stability and load bearing capacity of a truss with elastic braces
PublicationThe present paper is devoted to the numerical and experimental investigations of stability of a truss stiffened by elastic braces. The model of a real roof truss scaled by factor ¼ was investigated. In the research the linear buckling and non-linear static analysis of the truss shell and beam model with geometric and material non-linearity is presented. The initial imperfections were assumed in the form of the first buckling mode....
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ANALYSIS OF THE PROJECT OF INNOVATIVE FLOATING TURBINE
PublicationThe design of a floating, innovative device for river water aeration and conversion of mechanical energy to electrical energy required the analysis of a number of geometrical and dynamic features. Such an analysis may be carried out on the basis of existing methods of numerical fluid mechanics. Models of pressures, forces and torques characteristic for the conversion of watercourse energy were developed for two basic concepts of...
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Możliwości wdrożenia strategicznej karty wyników w Instytucie Oceanologii Polskiej Akademii Nauk w Sopocie.
PublicationAutorzy wskazują strategiczną kartę wyników jako instrument doskonalenia zarządzania instytutem naukowo-badawczym, na przykładzie Instytutu Oceanologii PAN w Sopocie. W opracowAniu podjęto próbę implementacji tej metody w zakresie każdej z czterech perspektyw strategicznej karty wyników, formułując uprzednio cele strategiczne IO PAN. Wskazano także związki przyczynowo-skutkowe sformułowanych celów szczegółowych działalności ze...
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Synteza, budowa i właściwości poliestrouretanów sieciowanych metakrylanem metylu
PublicationNową grupę poliestrouretanów (PEU) sieciowanych metakrylanem metylu otrzymano z nienasyconych prepolimerów uretanowych zsyntetyzowanych z oligo(alkilenoestro)dioli (OEA) zawierającą wiązania podwójne. Budowę otrzymanych PEU ustalono na podstawie analizy widm FTIR. Wyniki badań statycznych i dynamicznych właściwości mechanicznych oraz właściwości termicznych wykazały, że uzyskane PEU są interesującą grupą polimerów, których właściwości...
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Chemical characterization of wild populations of Brassica oleracea complex species (n=9) for the content of their bioactive compounds
PublicationThe wild species belonging to Brassica oleracea complex species (n=9) are widespread in the Mediterranean basin and represent the relative species of several vegetable crops, such as broccoli, cauliflower, kale, cabbage. They are characterized by the high level of bioactive compounds, such as glucosinolates (GLSs), known for their benefits for human health. Four accessions were evaluated: B. macrocarpa (BM) from Favignana (Trapani),...
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The dynamic signature verification using population-based vertical partitioning
PublicationThe dynamic signature is an attribute used in behavioral biometrics for verifying the identity of an individual. This attribute, apart from the shape of the signature, also contains information about the dynamics of the signing process described by the signals which tend to change over time. It is possible to process those signals in order to obtain descriptors of the signature characteristic of an individual user. One of the methods...
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Power electronic transformer based on cascaded H-bridge converter
PublicationIn this paper the control strategy of power electronic transformer (PET) is proposed. The analyzed structure of PET uses two seven-level cascaded H-bridge (CHB) rectifiers. The electrical power of PET is transferred between DC-links of CHB converters using dual-active-bridges (DABs) and low voltage high frequency transformers. The roposed solution allows for controlling the active and reactive power with a low level of harmonic...
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Intumescent flame retardants inspired template-assistant synthesis of N/P dual-doped three-dimensional porous carbons for high-performance supercapacitors
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Hierarchical porous carbon sheets derived on a MgO template for high-performance supercapacitor applications
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Three-dimensional porous carbon with big cavities and hierarchical pores derived from leek for superior electrochemical capacitive energy storage
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Anatomia systemu ERP. Rynek, praktyczne zastosowanie oraz bezpieczeństwo systemów Enterprise Resource Planning
PublicationTematem niniejszej pracy stał się rynek, praktyczne zastosowanie otwartych systemów ERP w przedsiębiorstwach oraz jego bezpieczeństwo dokonane na podstawie wybranych przykładów z artykułów naukowych oraz dostępnej literatury przedmiotu. Celem pracy jest udzielenie odpowiedzi na pytania: Jakie są dotychczasowe rozwiązania systemowe w przedsiębiorstwach? Jakie są zalety stosowania systemów ERP Open Source? Jakie...
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Extending transition curve in analytical design method
PublicationThe paper presents the problem of extending the transitional curves, using for this purpose an analytical design method. The basis for the analysis of numerical calculations were carried out for a wide set of parameters characterizing the standard geometric system. We considered an importance of the size of radius of the circular arc and return angle of route on the obtained results after the formulation of appropriate theoretical...
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Mathematical Approach to Assess a Human Gait
PublicationA purpose of the paper was to create a mathematical approach to assess a human gait. The scope of the study was to model a normal gait in the sagittal plane and frontal plane of the body. Applying the Newton-Euler formulation, three multibody biomechanical models were derived to describe single support phase and double support phase of the gait. To model a gait in the sagittal plane the open-close sagittal 6DOF model and the open-close...
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Architekturführer Danzig: Gdansk Sopot Gdynia
PublicationIm Zweiten Weltkrieg bis auf die Grundmauern zerstört, wurde der historische Stadtkern der Hansestadt Danzig als polnisches Gdańsk wiederaufgebaut – ein Paradebeispiel für kritische Rekonstruktion in Polen und zugleich eine bis heute stark umstrittene Entscheidung. Zusammen mit dem mondänen Seebad Sopot und der modernen Hafenstadt Gdynia bildet die Bernsteinstadt eine Metropolregion an der polnischen Ostseeküste: die Dreistadt...
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Blue applicability grade index (BAGI) and software: a new tool for the evaluation of method practicality
PublicationIn this work, blue applicability grade index (BAGI) is proposed as a new metric tool for evaluating the practicality of an analytical method. BAGI can be considered complementary to the well-established green metrics, and it is mainly focused on the practical aspects of White Analytical Chemistry. This tool evaluates ten main attributes including the type of analysis, the number of analytes that are simultaneously determined, the...
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Ti/TiO2 nanotubes sensitized PbS quantum dots as photoelectrodes applied for decomposition of anticancer drugs under simulated solar energy
PublicationOne of the challenges in research into photoelectrocatalytic (PEC) degradation of pollutants is finding the appropriate photoanode material, which has a significant impact on the process efficiency. Among all others, photoelectrodes based on an ordered TiO2 nanotube arrays are a promising material due to well-developed surface area and efficient charge separation. To increase the PEC activity of this material, the SILAR method was...
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Greenery and Urban Form vs. Health of Residents: Evaluation of Modernist Housing in Lodz and Gdansk
PublicationUrban forms can have numerous direct and indirect effects on the health of residents. This article focuses on the rela‐ tionship between health and urban form, in particular the role of green open spaces. The goal is to identify criteria for evaluating the impact of physical forms such as streets and open spaces, green infrastructure, and built structures on urban health. These criteria are then used to identify paths for the redevelopment...
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Influence of ice concentration and floe-size distribution on cluster formation in sea-ice floes
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Equivariant degree of convex-valued maps applied to set-valued BVP
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Computational examination of Jeffrey nanofluid through a stretchable surface employing Tiwari and Das model
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Separation of surfactant functionalized single-walled carbon nanotubes via free solution electrophoresis method
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Noise level arrangement in determined zones of homogenous development of green areas on the example of the spa park in Inowrocław
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Therapy with acetylsalicylic acid does not interfere with oral surgery
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Influence of cellulose fibers on physicochemical properties of biodegradable films based on polysaccharide derivatives
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Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry
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Effects of organic compounds on the macroalgae culture of Aegagropila linnaei
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Identification and characterization of the grinding burns by eddy current method
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Bifunctional sulfur-silicon podands as new nucleophilic ionophores in acyl transfer reactions. Influence of monovalent cations on the reaction kinetics
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Sensitivity evaluation of Krakowiec clay based on time-dependent behavior
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Fathers’ Coping Strategies and Children’s Temperament as Predictors of Parental Attitudes among Polish Fathers
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Simplified simulation technique of rotating, induction heated, calender rolls for study of temperature field control
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Viruses, cancer and non-self recognition
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Biosorption of toxic metals using freely suspended Microcystis aeruginosa biomass
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The Analysis of Nutritional Habits of the Third Age Students in Poznań
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Science and/or Miracle? The System Approach to Miracle Events
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Influence of potato variety on polyphenol profile composition and glycoalcaloid contents of potato juice
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Identification of Powdery Mildew Blumeria graminis f. sp. tritici Resistance Genes in Selected Wheat Varieties and Development of Multiplex PCR
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Nutritional analysis and evaluation of the consumer acceptance of pork pâté enriched with cricket powder - preliminary study
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Influence of sub-inhibitory concentration of selected plant essential oils on the physical and biochemical properties of Pseudomonas orientalis
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Low Field NMR Studies of Wheat Bread Enriched with Potato Juice During Staling
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On the homotopy equivalence of the spaces of proper and local maps
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Lycopene in tomatoes and tomato products
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Antimicrobial and antioxidant activities of Cinnamomum cassia essential oil and its application in food preservation
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Simulation model for resource-constrained construction project
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Conformational changes of peptidoglycan fragments during their interactions with vancomycin
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Protocol of the study: the effectiveness of pleuran in the treatment of acute gastroenteritis in children—a randomised, placebo-controlled, double-blind trial (EPTAGE)
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Design and numerical study of turbines operating with MDM as working fluid
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