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Search results for: kable wn obciazalnosc pradowa

  • Researching Digital Society: Using Data-Mining to Identify Relevant Themes from an Open Access Journal

    Publication

    - Year 2021

    Open Access scholarly literature is scientific output free from economic barriers and copyright restrictions. Using a case study approach, data mining methods and qualitative analysis, the scholarly output and the meta-data of the Open Access eJournal of e-Democracy and Open Government during the time interval 2009–2020 was analysed. Our study was able to identify the most prominent research topics (defined as thematic clusters)...

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  • WHAT DRIVES CROSS-COUNTRY DIFFERENCES IN EXPORT VARIETY? A BILATERAL PANEL APPROACH

    Publication

    A worldwide event like the 2020 Coronavirus outbreak can only reinforce the interest in modelling trade diversification as a key factor in countries’ vulnerability to external shocks. This paper adopts a detailed relative framework to study the determinants of product-level export variety in a large bilateral panel of developing and developed economies (16,770 country pairs in the period 1988–2014). We find that country pairs characterized...

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  • Universal and contextualized public services: Digital public service innovation framework

    Publication

    - GOVERNMENT INFORMATION QUARTERLY - Year 2016

    In view of the rising social and economic inequalities, public service delivery should be both universal, i.e. independent of the recipients' social or economic status, and contextualized, i.e. able to compensate for different local needs and conditions. Reconciling both properties requires various forms of innovations, chief among them innovations in digital public services. Building upon the four-stage model underpinning the...

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  • Experimentally feasible semi-device-independent certification of four-outcome positive-operator-valued measurements

    Publication

    - PHYSICAL REVIEW A - Year 2019

    Recently the quantum information science community devoted a lot of attention to the theoretical and practical aspects of generalized measurements, the formalism of all possible quantum operations leading to acquisition of classical information. On the other hand, due to imperfections present in quantum devices, and limited thrust to them, a trend of formulating quantum information tasks in a semi-device-independent manner emerged....

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  • Konkurencyjność w handlu usługami wybranych krajów Europy Środkowo-Wschodniej

    Publication

    - Year 2016

    Celem artykułu jest ocena pozycji konkurencyjnej w handlu usługami wybranych krajów Europy Środkowo-Wschodniej – Czech, Estonii, Litwy, Łotwy, Polski, Słowacji oraz Węgier na tle gospodarki światowej. Dane wykorzystane do analizy pochodzą z bazy danych WIOD i obejmują lata 1995 – 2011. Podstawą oceny pozycji konkurencyjnej jest wskaźnik RCA obliczony na podstawie krajowej wartości dodanej oraz na podstawie eksportu brutto. Źródłem...

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  • Koncepcja platformy wymiany informacji o incydentach cyberbezpieczeństwa dla krajowego systemu elektroenergetycznego

    Artykuł opisuje wybrane zagadnienia związane z cyberbezpieczeństwem w sektorze elektroenergetyki. Jednym z elementów zapewniania bezpieczeństwa sieci elektro-energetycznej jest efektywna wymiana informacji o incydentach bezpieczeństwa. W jej ramach wszystkie zaangażowane podmioty systemu elektroenergetycznego, tj.: elektrownie, operatorzy systemów przesyłowych, operatorzy systemów dystrybucyjnych, dostawcy rozwiązań bezpieczeństwa,...

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  • Analiza empirycznego modelu propagacyjnego dla budynków parkingowych

    Publication

    - Year 2014

    Rozwój branży telekomunikacyjnej pozwolił na możliwość realizacji transmisji bezprzewodowej za pomocą fal radiowych. Jednak pociąga to za sobą problemy związane ze zmiennymi warunkami propagacji fal radiowych. Ich złożoność zależy od środowiska propagacyjnego, w którym ta fala się rozchodzi. Aby zaprojektowanie bezprzewodowej sieci wewnątrzbudynkowej stało się możliwe, trzeba dysponować wiedzą na temat danego środowiska propagacyjnego...

  • Experimental and Numerical Study on Pounding of Structures in Series

    Publication

    - Year 2015

    Pounding between structures in series during earthquakes may cause serious damage in the structural elements. The aim of this paper is to show the results of an experimental and numerical study that is focused on pounding between more than two structures which may be described as “structures in series”. In this study, the shaking table experiments, as well as the numerical analyses, were performed using three tower models including...

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  • Analysis of electromagnetic disturbances in DC network of grid connected building-integrated photovoltaic system

    Publication

    - Year 2015

    This paper focuses on conducted electromagnetic interference (EMI) emissions and propagation in the DC network of grid connected building integrated photovoltaic (PV) system. The investigated PV system, consists of ten solar panels, cabling and the grid-connected one phase inverter. The EMI simulation model of the real PV system has been developed with the aid of impedance analyzer measurements of solar panels and the DC network...

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  • Pedestrian on footbridges, vertical loads and response

    Publication

    - Year 2008

    The paper is a synthesis of the experimental and theoretical investigations on dynamics of pedestrian bridges under vertical load The subject is divided into four issues.1) The pedestrian as a vertical dynamic load on footbridges, theoretic load function for walking and crouching.2) Crowd walking on the footbridge - pedestrian flow.3) Vertical lock-in effect.4) Response of the footbridge - numeric and side test results, -...

  • Review of the Usefulness of Various Rotational Seismometers with Laboratory Results of Fibre-Optic Ones Tested for Engineering Applications

    Publication
    • L. Jaroszewicz
    • A. Kurzych
    • Z. Krajewski
    • P. Marć
    • J. Kowalski
    • P. Bobra
    • Z. Zembaty
    • B. Sakowicz
    • R. Jankowski

    - SENSORS - Year 2016

    Starting with descriptions of rotational seismology, areas of interest and historical field measurements, the fundamental requirements for rotational seismometers for seismological and engineering application are formulated. On the above basis, a review of all existing rotational seismometers is presented with a description of the principles of their operation as well as possibilities to fulfill formulated requirements. This review...

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  • The experience of movement in the built form and space: A framework for movement evaluation in architecture

    Publication

    - Cogent Arts & Humanities - Year 2019

    “Movement in architecture” is an organized system of various types of movements stimulated by specific architectural elements. This research was conducted through a qualitative-analytical method and empirical and bibliographical research methods with the aim to categorize different types of movements based on the explorer and observer relationships with the built space and form. So far, most of the related studies have focused...

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  • Evaluation of fire hazard in electrical installations due to unfavorable ambient thermal conditions

    Publication

    - Fire - Year 2023

    Evaluation of fire hazard caused by electrical installations is a difficult and important topic, and it limits the possibility of loss of life or health of people, as well as the occurrence of significant property damage. In particular, this hazard was caused by power cables and especially photovoltaic (PV) installations. The authors proved that power cables directly exposed to strong solar radiation are likely to exceed maximum...

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  • Original footbridge in Mikolajki, Poland

    In summer 2016, a new footbridge in the town of Mikołajki (Poland) was built, over a stream connecting two adjacent lakes – Talty and Mikołajki. Its modern construction, based on the shape of a DN ice-boat, makes it inique in Poland, and probably in the world as well. This novel and dynamic shape became a significant landmark associated not only with Mikołajki, but also with the whole region of Mazury, as well as with sailing...

  • Uproszczone modelowanie linii kablowych wysokiego napięcia a napięcia indukowane w żyłach powrotnych – studium przypadku

    Linie kablowe, obok linii napowietrznych, są jednym z podstawowych elementów składowych systemów elektroenergetycznych. Stosowane są głównie na terenach zurbanizowanych, gdzie prowadzenie linii napowietrznych jest mocno utrudnione lub wręcz niemożliwe. Linie kablowe wysokiego napięcia budowane są głównie z wykorzystaniem kabli, które oprócz żyły roboczej mają również współosiową żyłę powrotną. Istnieje kilka układów pracy takich...

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  • Diagnostyka łożysk silnika indukcyjnego na podstawie prądu zasilającego przy użyciu sztucznych sieci neuronowych

    Publication

    W artykule zawarto wyniki badań dotyczące diagnostyki łożysk silnika indukcyjnego na podstawie pomiarów prądu zasilającego z wyko-rzystaniem sztucznych sieci neuronowych. Zaprezentowano wyniki uczenia sieci oraz rezultaty testów przeprowadzonych na danych spoza zbioru uczącego. Badania wykonane zostały na obiektach z celowo wprowadzonymi uszkodzeniami łożysk. Przedstawiona nowa koncepcja zakłada użycie zestawu sieci neuronowych...

  • Electrocatalytic gas sensor with non-triangular excitation = Czujnik elektrokatalityczny z pobudzeniem innym niż trójkątne

    Elektrokatalityczny czujnik gazu pracuje w trybie woltamperometrycznym. Pobudzony jest zmieniającym się napięciem przy jednoczesnym pomiarze prądowej odpowiedzi czujnika. Charakterystyka prądowo-napięciowa ma unikalny kształt, uzależniony od stężenia i rodzaju gazów w otoczeniu czujnika. Jako pobudzenie zazwyczaj stosowane jest napięcie liniowo narastające w zakresie od 5 V do -5 V napięcie o symetrycznym, trójkątnym kształcie....

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  • Determination of the thermal conductivity of material dividing the metallic core elements of the bi-calorimeter using modified theory

    Publication

    W pracy przedstawiono zmodyfikowaną teorię bikalorymetru z dzielonym metalowym rdzeniem. Pomiędzy dwiema częściami rdzenia umieszczano próbki badanego ciała stałego lub gazu. Ogrzewano jedną stronę rdzenia. Mierzono temperaturę obu części rdzenia w funkcji czasu. Uzyskane wyniki umożliwiły wyznaczenie różnicy temperatur i strumienia ciepła, przepływającego przez próbkę. Z zastosowaniem prawa Fouriera obliczano współczynnik przewodności...

  • Aktualny stan prawny w zakresie reklam widzianych z drogi i rekomendacje do zmian

    Publication

    W artykule zostały omówione regulacje składające się na aktualny stan prawny dotyczący umiejscawiania reklam widzianych z drogi. Obowiązujące przepisy prawa nie zawierają wyczerpującej regulacji na temat umiejscawiania reklam w kontekście brd, przez co interesy użytkowników dróg nie są należycie chronione. Uwagi nt. obowiązujących norm uzupełnione zostały o przegląd wybranych orzeczeń sądów administracyjnych oraz przedstawienie...

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  • Przepisy ogólne

    Publication

    - Year 2012

    Komentarz zawiera szczegółowe omówienie przepisów ustawy o komornikach sądowych i egzekucji. Autorzy analizują problemy, które pojawiają się w praktyce, a są związane z postępowaniem egzekucyjnym, a także szerzej - z postępowaniem cywilnym. W monografii przedstawiono prawa i obowiązki komorników sądowych, sposób ich powołania i odwołania, kwestie nadzoru nad nimi i ich odpowiedzialności dyscyplinarnej. Szczególnie przydatna dla...

  • Aplikanci i asesorzy komorniczy

    Publication

    - Year 2012

    Komentarz zawiera szczegółowe omówienie przepisów ustawy o komornikach sądowych i egzekucji. Autorzy analizują problemy, które pojawiają się w praktyce, a są związane z postępowaniem egzekucyjnym, a także szerzej - z postępowaniem cywilnym. W monografii przedstawiono prawa i obowiązki komorników sądowych, sposób ich powołania i odwołania, kwestie nadzoru nad nimi i ich odpowiedzialności dyscyplinarnej. Szczególnie przydatna dla...

  • System instytucjonalno-prawny

    Publication

    - Year 2009

    Wraz ze wzrostem zapotrzebowania społeczeństwa na mobilność oraz oczekiwan wobec standardów przewozu osób i towarów przepisy prawne dotyczące transportu stają się coraz bardziej obszerną dziedziną prawa administracyjnego. Szacuje się że regulacje związane z samym tylko transportem drogowym stanowią nawet co piąty dokument wszystkich przepisów wspolnotowych. W rozdziale przedstawiono zakres kompetencji organów władzy państwowej...

  • Współczesne problemy mieszkaniowe Głównego Miasta Gdańska

    Publication

    Główne Miasto Gdańska stanowi szczególny przykład dzielnicy mieszkaniowej, odbudowanej po dotkliwych zniszczeniach wojennych w duchu historycznym. Nowe kamienice spełniają wymogi powojennych przepisów prawa budowlanego uwzględniająć sposób doświetlenia, wentylacji, komunikacji mieszkań. Aktualnie jest to interesujący obszar miasta postrzegany jako zabytkowy dzięki zachowanym budowlom historycznym. W sytuacji, gdy Główne Miasto...

  • Information Systems, Business and Law - Lessons Learnt

    Referat prezentuje badania na styku wytwarzania systemów informatycznych, procesów biznesowych i powiązanych z nimi regulacji prawnych. Zawiera on opis doświadczeń wynikających z zastosowania zintegrowanej metody analizy technicznej i prawnej podczas wytwarzania systemu ochrony własności intelektualnej. Przedstawione doświadczenia i powiązane analizy mogą być przydatne podczas tworzenia taksonomii zagadnień na styku systemów informatycznych,...

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  • Ryzyko etyczne w procesie wytwarzania oprogramowania [online]

    Publication

    - Year 2005

    W artykule rozpatrywane są współczesne problemy wytwarzania oprogramowania. Jednym z możliwych sposobów ich rozwiązywania jest uwzględnienie w procesie wytwarzania zagadnień ryzyka etycznego, rozumianego jako zagrożenia, jakie dla sukcesu przedsięwzięcia stwarzają problemy etyki podejmowanych decyzji, odstępstwa od obowiązującego prawa, uwarunkowań polityki prowadzenia projektu, wpływu projektu na ludzi, biorących w nim udział...

  • Characterization of porous materials by capillary rise method

    Publication

    - Year 2005

    Badane były kinetyki penetracji ciał porowatych złożonych z cząstek o różnych wymiarach. Na podstawie przeprowadzonych badań okazało się, że kinetyki penetracji i ważność prawa Washburna zależą nie tylko od wielkości cząstek ale także od dystrybucji wielkości porów. Różnica w czasie jaka wynika z przepływu cieczy przez ośrodek porowaty do całkowitego nasycenia cieczą została zaproponowana jako nowy parametr, opisujący rozkład wielkości...

  • Application of the neural networks for developing new parametrization of the Tersoff potential for carbon

    Publication

    - TASK Quarterly - Year 2020

    Penta-graphene (PG) is a 2D carbon allotrope composed of a layer of pentagons having sp2- and sp3-bonded carbon atoms. A study carried out in 2018 has shown that the parameterization of the Tersoff potential proposed in 2005 by Ehrhart and Able (T05 potential) performs better than other potentials available for carbon, being able to reproduce structural and mechanical properties of the PG. In this work, we tried to improve the...

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  • ANALYSIS OF CLIMATIC ZONES IN POLAND WITH REGARD TO ASPHALT PERFORMANCE GRADING

    Towards the end of the last century a new system of bitumen grading was developed and implemented as part of the American Strategic Highway Research Program (SHRP). Its aim was to better adjust the testing methods and requirements for road bitumens to the actual conditions in which those bitumens serve in road pavements. Currently in Poland, similarly as in the other EU countries, road bitumens are tested and classified with regard...

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  • Virtual Engineering Objects (VEO): Designing, Developing and Testing Models

    Publication

    - Year 2014

    In this article, the development and implementation of the concept of Virtual Engineering Object (VEO) is described. A VEO is a computerized real world representation of an engineering object. VEO will act as a living representation of the object capable of adding, storing, improving and sharing knowledge through experience, in a way similar to an expert of that object. In this paper, it is shown through test models how the concept...

  • The Decisional DNA-Based Smart Bike for Internet of Things

    Publication

    - Year 2014

    In this paper, we introduce a novel application of the Internet of Things, the Decisional DNAbased Smart Bike. The Decisional DNA is a domain-independent, flexible and standard knowledge representation structure; it allows its domains to acquire and store experiential knowledge and formal decision events in an explicit way. By using Decisional DNA, the sensor-equipped bicycle is able to learn its user’s weight, riding habits, etc....

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  • Inhibitors of amino acids biosynthesis as antifungal agents

    Publication

    Fungal microorganisms, including the human pathogenic yeast and filamentous fungi, are able to synthesize all proteinogenic amino acids, including nine that are essential for humans. A number of enzymes catalyzing particular steps of human-essential amino acid biosynthesis are fungi specific. Numerous studies have shown that auxotrophic mutants of human pathogenic fungi impaired in biosynthesis of particular amino acids exhibit...

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  • A survey of strategies for communication networks to protect against large-scale natural disasters

    Publication
    • T. Gomes
    • J. Tapolcai
    • C. Esposito
    • D. Hutchison
    • F. Kuipers
    • J. Rak
    • D. Amaro
    • A. Iossifides
    • R. Travanca
    • J. Andre... and 8 others

    - Year 2016

    Recent natural disasters have revealed that emergency networks presently cannot disseminate the necessary disaster information, making it difficult to deploy and coordinate relief operations. These disasters have reinforced the knowledge that telecommunication networks constitute a critical infrastructure of our society, and the urgency in establishing protection mechanisms against disaster-based disruptions. Hence, it is important...

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  • Application of genetic algorithms in graph searching problem

    Graph searching is a common approach to solving a problem of capturing a hostile intruder by a group of mobile agents. We assume that this task is performed in environment which we are able to model as a graph G. The question asked is how many agents are needed to capture an arbitrary fast, invisible and smart intruder. This number is called the (edge) search number of G. The strategy which must be performed by agents is called...

  • Controlling computer by lip gestures employing neural network

    Publication

    - Year 2010

    Results of experiments regarding lip gesture recognition with an artificial neural network are discussed. The neural network module forms the core element of a multimodal human-computer interface called LipMouse. This solution allows a user to work on a computer using lip movements and gestures. A user face is detected in a video stream from a standard web camera using a cascade of boosted classifiers working with Haar-like features....

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  • Białowieża primeval forest as an example of transfrontier co-operation between Poland and Bielarus

    Publication

    - Year 2010

    The Polish Ministry of Foreign Affairs is completing their work on the agreement on local border traffic (May 2009.) At the final stage of the works, the list of the towns and villages situated within the area covered by the so-called "local traffic" on both the Polish and the Belarusian sides of the border is being verified. The "border belt" area, whose residents will be able to move between the bordering countries under the...

  • Application tool for IP QoS network design

    Publication

    - Year 2010

    Despite the fact that differentiated-service-aware network implementation has been a widely discussed topic for quite some time, network design still proofs nontrivial. Well developed software could put an end to network designer's problems. This chapter describes work, which has been aimed at creating a comprehensive network design tool, offering a fair range of functionality and high reliability. The presented tool is able to...

  • Analysis of aircraft magnetic interference

    The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

  • A Centralized Reputation System for MANETs Based on Observed Path Performance

    Publication

    A reputation system for MANETs is described that attempts to deduce nodal trustworthiness (forwarding behaviour) from observed end-to-end path performance. The trustworthiness deduction algorithm produces interval estimates and works well if node misbehaviour is not selec-tive with respect to traversing paths. Nodal reputation levels are next calculated in the spirit of generous tit-for-tat so as to best reflect momentary nodal...

  • Optical recognition elements: macrocyclic imidazole chromoionophores entrapped in silica xerogel

    Publication

    - MATERIALS SCIENCE-POLAND - Year 2007

    Materials containing new chromoionophores consisting of crown residue and azole moiety as partsof macrocycles were encapsulated by the sol-gel procedure in silica xerogel matrices and proposed aschemical recognition elements especially for such metal ions as Li+, Cs+ and Cu2+. Action of these recognition elements is in principle based on changes of reflectance. The recognition elements containing 21-membered chromogenic...

  • COLREGS compliance in Evolutionary Sets of Cooperating Ship Trajectories

    In general, Evolutionary Sets of Cooperating Ship Trajectories combine some of the assumptions of game theory with evolutionary programming and aim to find optimal set of cooperating trajectoriesof all ships involved in an encounter situation. In a two-ship encounter situation the method enables the operator of an on-board collision-avoidance system to predict the most probable behaviour of atarget and to plan the own manoeuvres...

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  • Analysis of aircraft magnetic interference

    Publication

    - Year 2011

    The magnetometric method is used among other things on mobile platforms (planes, helicopters) in military systems and in geological research. Optically-pumped and SQUID magnetometers are used in magnetic systems on airplanes. To be able to attain the sensitivity of modern magnetometers in flight, it is important that maneuver-related magnetic interference effects be minimized. The mathematical model of an aircraft as a source of...

  • Enhancing Product Innovation Through Smart Innovation Engineering System

    Publication

    - Year 2017

    This paper illustrates the idea of Smart Innovation Engineering (SIE) System that helps in carrying the process of product innovation. The SIE system collects the experiential knowledge from the formal decisional events. This experiential knowledge is collected from the set of similar products having some common functions and features. Due to the fact that SIE system collects, captures and reuses the experiential knowledge of all...

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  • Simulation Environment in Python for Ship Encounter Situations

    To assess the risk of collision in radar navigation distance-based safety measures such as Distance at the Closest Point of Approach and Time to the Closest Point of Approach are most commonly used. Also Bow Crossing Range and Bow Crossing Time measures are good complement to the picture of the meeting situation. When ship safety domain is considered then Degree of Domain Violation and Time to Domain Violation can be applied. This...

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  • Convenient and efficient N-methylation of secondary amines under solvent-free ball milling conditions

    In the present work, we report the development of a rapid, efcient, and solvent-free procedure for the N-methylation of secondary amines under mechanochemical conditions. After optimization of the milling parameters, a vibrational ball mill was used to synthesize 26 tertiary N-methylated amine derivatives in a short time of 20 min (30 Hz frequency) and high yields ranging from 78 to 95%. An exception was compounds having a hydroxyl...

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  • Unveiling the Green Mirage: Unearthing Weaknesses in Pro-Environmental Applications

    Publication
    • E. Duda
    • H. Obracht-prondzyńska
    • H. Anacka
    • J. Kowal

    - Year 2023

    Growing ecological concerns and a general shift towards tailored digitized solutions in cities lead to an increased popularity of pro ecological applications, especially those associated with transport-oriented functionalities. This research focuses on the results from a testbed of a pro-environmental application deployment among early adopters. Based on quantitative and cartographic analysis enriched with interviews’ results,...

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  • Flexural behavior of composite structural insulated panels with magnesium oxide board facings

    The current report is devoted to the flexural analysis of a composite structural insulated panel (CSIP) with magnesium oxide board facings and expanded polystyrene (EPS) core, that was recently introduced to the building industry. An advanced nonlinear FE model was created in the ABAQUS environment, able to simulate the CSIP’s flexural behavior in great detail. An original custom code procedure was developed, which allowed to include...

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  • A Systematic Literature Review on Implementing Non-functional Requirements in Agile Software Development: Issues and Facilitating Practices

    Agile Software Development methods have become a widespread approach used by the software industry. Non-functional requirements (NFRs) are often reported to be a problematic issue for such methods. We aimed to identify (within the context of Agile projects): (1) the issues (challenges and problems) reported as affecting the implementation of NFRs; and (2) practices that facilitate the successful implementation of NFRs. We conducted...

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  • The effect of multiaxial geocomposite reinforcement on fatigue performance and crack propagation delay in double-layered asphalt beams

    Publication

    - Road Materials and Pavement Design - Year 2023

    The presented study investigates the effect of a recently developed multiaxial geocomposite made of polypropylene geogrid and non-woven fabric on the delay of crack propagation, based on four-point bending tests of large asphalt concrete beams – both for reinforced and non-reinforced specimens. Several approaches are described in this study, including analysis of stiffness modulus decrease and analysis of crack propagation using...

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  • The lemniscate knowledge flow model

    Knowledge is seen as one of the main resources for organizations providing knowledge-intensive services. Therefore, sharing and reusing are the main goals of modern knowledge management (KM) approach, driven by information and communication technologies (ICT). However, one can ask for the details in order to provide means and tools to design and deploy environment able to fulfil these two goals. We observed that occurred interactions...

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  • Evaluating Asymmetric N-Grams as Spell-Checking Mechanism

    Typical approaches to string comparing marks two strings as either different or equal without taking into account any similarity measures. Being able to judge similarity is however required for spelling error corrections, as we want to find the best match for a given word. In this paper we present a bi2quadro-grams method for spelling errors correction. The method proposed uses different n-grams dimension for the source (checked)...

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