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Search results for: big data

  • Computer support of analysis optical spectra measurements

    Publication

    Verification of measurement errors has a big impact on assessment of accuracy of conducted measurements and obtained results. In many cases computer simulation results are compared with measurement results in order to evaluate measurement errors. The purpose of our research was to check the accuracy of measurements made with Fabry-Perot interferometer working in the transmission mode. In measurement setup, a 1310 nm superluminescent...

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  • Computer Support of Analysis of Optical Spectra Measurements

    Publication

    The verification of measurement errors has a big impact on the assessment of the accuracy of conducted measurements and obtained results. In many cases, computer simulation results are compared with measurement results in order to evaluate measurement errors. The purpose of our research was to check the accuracy of measurements made with a Fabry–Perot interferometer working in the transmission mode. In the measurement setup, a...

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  • Economic crisis in Croatia

    Publication

    Croatia is becoming the 28th member of the European Union on July 1st, 2013. Croatia has gone a long way from a socialistic republic to an independent country recognized as one of the economic tigers of the Western Balkans in the first decade of the 21st century. Croatia has been hit by a global crisis which turned out to be a huge external shock for the region of the Western Balkans. Although it does not enter the economy through...

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  • ON EGNOS MONITORING IN LOCAL CONDITIONS

    Any SBAS system should deliver to the user corrections to pseudoranges as well as information about the system integrity. In theory, as soon as the system is permanently monitored by RIMS stations, it is impossible to deliver the fault information to the user. However many observations shows that accuracy of EGNOS service in the same time are different in different places, which shows the influence of local conditions on them....

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  • Creating new voices using normalizing flows

    Publication
    • P. Biliński
    • T. Merritt
    • A. Ezzerg
    • K. Pokora
    • S. Cygert
    • K. Yanagisawa
    • R. Barra-Chicote
    • D. Korzekwa

    - Year 2022

    Creating realistic and natural-sounding synthetic speech remains a big challenge for voice identities unseen during training. As there is growing interest in synthesizing voices of new speakers, here we investigate the ability of normalizing flows in text-to-speech (TTS) and voice conversion (VC) modes to extrapolate from speakers observed during training to create unseen speaker identities. Firstly, we create an approach for TTS...

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  • Green and sustainable hydrogels based on quaternized chitosan to enhance wound healing

    Publication

    - CHEMICAL ENGINEERING JOURNAL - Year 2024

    Hydrogel-based biomaterials applied as wound dressings provide the wound with a moist environment, which facilitates tissue regeneration through granulation and re-epithelialization. The inherent flexibility and adjustable architecture of hydrogels enables incorporation of cells, antimicrobial drugs, growth factors, and bioactive compounds, which leads to expediting wound contraction and enhancing the regeneration process. The...

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  • Improvement of glass break acoustic signal detection via application of wavelet packet decomposition

    The main subject of the authors' research are non-contact methods of glass break detection based on analysis of the acoustic signal generated during the event. This problem has essential meaning for modern cost- effective alarm systems, particularly those installed into big buildings. The main difficulties of the matter are: transient character of the signal, great number of similar sounds (false signals, mainly accidental glass...

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  • Modeling of entrained flow steam gasification of sewage sludge

    Publication
    • J. Mularski
    • K. Stasiak
    • M. Ostrycharczyk
    • M. Czerep
    • M. Wnukowski
    • K. Krochmalny
    • M. Baranowski
    • P. Ziółkowski
    • M. Kowal
    • Ł. Niedźwiecki... and 2 others

    - Year 2023

    Proper management of sewage sludge becomes increasingly problematic due to legal requirements aiming at diminishing environmental impact, as well as rationalizing the utilization from the point of view of logistics. Steam gasification of sewage sludge can result in very good quality of the producer gas. So far, the works have been focused on the gasification in fixed bed gasifiers. However, this does not allow to take full advantage...

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  • Determination of t8/5 cooling times for underwater local dry welding of steel

    Knowledge of thermal history is the basic condition for studying the structure - properties of welded joints. The determinant of thermal history is the thermal cycle, whose in-situ measurements are still a big challenge. Water as the welding environment complicates this issue even more. The article presents a method to determine an equation for calculating t8/5 cooling times for underwater gas metal arc welding of unalloyed steels...

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  • Social media for e-learning of citizens in smart city

    Publication

    - Year 2018

    The rapid development of social media can be applied for citizens’ e-learning in a smart city. Big cities have to cope with several open issues like a growing population or a traffic congestion. Especially, a home and public space is supposed to be used in more efficient way. Sustainable homes and buildings can be planned with using some modern techniques. Even currently, there is a huge problem with a lack of key resources like...

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  • Economic Situation in Balkan Countries in the First Decade of 21st Century

    Publication

    - Year 2014

    The recent economic crisis affected most of the countries in the world to a greater or lesser extent, including small economies sector. Small economies are a distinctive group of countries distinguished by particular qualities. They are dependent on trade exchange or international investment stream, and both their aggregate demand and supply, and price level depend on the development of the big economies dynamics. This is the reason...

  • Semantic Analysis and Text Summarization in Socio-Technical Systems

    Publication

    - Year 2018

    In this chapter the authors present the results of the development the methodology for increasing the reliability of the functioning of the Socio-Technical System. The existed methods and algorithms for processing unstructured (textual) information were studied. Taking into account noted above strengths and weaknesses of Discriminant and Probabilistic approaches of Latent Semantic Relations analysis in of the summarization projection...

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  • The Brick Face of Modernism and Architecture of Gustav Oelsner

    There are many reasons that make the work of Gustav Oelsner worth to present. One of the reasons is comparison of two different ways of development of two cities, Gdynia (an exhibition of work of Gustav Oelsner was presented in Gdynia in April and May of 2011) and Altona, were Oelsner created his architecture. These two cities has grown at the side of their big neighbours, Gdansk and Hamburg. They are harbour cities and their...

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  • Multi-layered mineral glass units used as viewport elements of underwater ship structures

    Publication

    - Year 2022

    In the paper, Authors deals with viewport elements of underwater marine constructions. If a single-plate viewport constructions are considered, big thicknesses of the glass plate are required to resist the pressure. To build the viewports from the commercially accessible glass panes, multi-layered glass units are proposed in the paper. Numerical calculations are presented, summarized and compared with experimental tests. Focusing...

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  • Swapping Space for Time: An Alternative to Time-Domain Interferometry

    Publication

    Young's double-slit experiment [1] requires two waves produced simultaneously at two different points in space. In quantum mechanics the waves correspond to a single quantum object, even as complex as a big molecule. An interference is present as long as one cannot tell for sure which slit is chosen by the object. The more we know about the path, the worse the interference. In the paper we show that quantum mechanics allows for...

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  • Recent advancements in molecularly imprinted polymers for the removal of heavy metal ions and dyes

    Contamination set off by highly toxic metal ions and dyes is a big threat to the environment and living beings. Various industries like metal plating, mining, pesticides, battery manufacturing, and dyeing release metal ions and toxic dyes directly into the water. It is necessary to remove these toxic substances from the environment. Molecular imprinting technology (MIT) got a lot of attention in the last two decades because of...

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  • The Education of Analytical Chemists in Polish Universities

    Publication

    - Year 2013

    Analytical Chemistry plays a very important role in the modern world. The main reasons are; the need of environmental monitoring, quality of food and water control, human health, quality of industrial production control, nanotechnologies and material science. Together with Inorganic Chemistry, Organic Chemistry and Physical Chemistry, Analytical Chemistry is a fundamental chemical course. The education of Analytical Chemists is...

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  • Youth attitude to entrepreneurship in Eastern and Central European countries: Gender aspect

    Publication

    Current business conditions pose new challenges to youth entrepreneurship, which is a significant component of countries’ economic growth. In addition, Generation Z differs from previous generations and requires new approaches. In this context, a comprehensive study of the peculiarities and various aspects of youth entrepreneurship development is highly-demanded and relevant. Furthermore, the lower representation of women among...

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  • Tourism for older and disabled people

    Publication

    - Year 2008

    Tourist offer for the older and disabled is getting wider. Many hotels and cities are adjusted to disabled people's needs, but there are not enough safe places for leisure, where they could be surrounded by nature. In comparison with cities - villages and small towns have very little to offer as far as tourism is concerned. This problem is noticed by small local communities that threat it as a chance for their economical development....

  • Novel single-stranded DNA-binding proteins from extreme psychrophilic bacterium Psychromonas ingrahamii 37

    Publication

    - Year 2010

    We report the identification and characterization of the single-stranded DNA binding protein (SSB) from extreme psychrophilic bacterium Psychromonas ingrahamii 37 (PinSSB) that grows expotentially at -12°C and may well grow at even lower temperatures. PinSSB is one of the largest known bacterial SSB protein consisting 222 amino acid residues with a calculated molecular mass of 25.1 kDa. The analysis by gel filtration chromatography...

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  • Customer Assessment of Brand Valuation and Social Media

    Publication

    - Year 2016

    The research problem engaged in this article is to determine whether contemporary consumers are able to assess brand equity in the overabundance of brands and products with similar features and qualities. The author argues that in the existing circumstances when differences between brands become insignificant the consumer is not capable of assessing their equity adequately. In order to verify the thesis the author has accepted...

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  • Chitosan-based inks for 3D printing and bioprinting

    Publication
    • M. Taghizadeh
    • A. Taghizadeh
    • M. K. Yazdi
    • P. Zarrintaj
    • F. J. Stadler
    • J. D. Ramsey
    • S. Habibzadeh
    • G. Naderi
    • M. Saeb
    • M. Mozafari
    • U. Schubert

    - GREEN CHEMISTRY - Year 2022

    The advent of 3D-printing/additive manufacturing in biomedical engineering field has introduced great potential for the preparation of 3D structures that can mimic native tissues. This technology has accelerated the progress in numerous areas of regenerative medicine, especially led to a big wave of biomimetic functional scaffold developments for tissue engineering demands. In recent years, the introduction of smart bio-inks has...

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  • Assessment of the Effectiveness of a Short-term Hearing Aid Use in Patients with Different Degrees of Hearing Loss

    Publication

    - Archives of Acoustics - Year 2019

    The study presents evaluating the effectiveness of the hearing aid fitting process in the short-term use (7 days). The evaluation method consists of a survey based on the APHAB (Abbreviated Profile of Hearing Aid Benefit) questionnaire. Additional criteria such as a degree of hearing loss, number of hours and days of hearing aid use as well as the user’s experience were also taken into consideration. The outcomes of the benefit...

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  • Edible dragonflies and damselflies (order Odonata) as human food – A comprehensive review

    Publication
    • S. A. Siddiqui
    • K. Asante
    • N. Ngah
    • Y. Saraswati
    • Y. Wu
    • M. Lahan
    • O. Aidoo
    • I. Fernando
    • S. Povetkin
    • R. Castro Munoz

    - Journal of Insects as Food and Feed - Year 2024

    The rapid growth of the human population leads to a big concern about the food y and demand worldwide. However, due to the reduction in global arable land area, humans need to find alternative food sources to fulfil their needs. Consequently, edible insects have been identified as a promising solution to ameliorate food security and increase global nutrition. Among more than 2,100 identified edible insect species, dragonflies and...

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  • E-egzamin - analiza statystyczna wyników

    Publication

    - Year 2008

    Dnia 4 marca 2008 roku, po raz pierwszy w Polsce, odbył się próbny egzamin gimnazjalny z części matematyczno-przyrodniczej, przeprowadzany drogą elektroniczną, ''E-egzamin 2008''. Organizatorami egzaminu byli: Wyższa Szkoła Humanistyczno-Ekonomiczna i WSiP. Patronat nad projektem objęli: Minister EN i dyrektor Centralnej Komisji Egzaminacyjnej. Nietypowy próbny egzamin gimnazjalny pisało w jednym czasie kilka tysięcy gimnazjalistów...

  • Decreasing CO2 Emissions By Reducing Tire Rolling Resistance

    Publication

    The first motor vehicle was built by Nicolas Cugnot almost 250 years ago and since then there has been a continuous process of motor vehicles’ improvements, as well as development of new road pavements. The fuel crisis of the 70s of the 20th century made it clear to vehicle builders that measures should be taken to reduce vehicle fuel consumption and it contributed to an increased interest in electric vehicles. Although significant...

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  • Modelling Signalised Intersections Reliability of Functioning

    The article addresses a fundamental aspect of traffic, i.e. the operation of traffic signals at intersections, in reference to the reliability theory. In many cases, when intersections carry substantial amounts of traffic, selecting control parameters to produce satisfactory traffic conditions is quite difficult. Design methods do not cover all possible situations which are the result of intersection geometry and location...

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  • Towards Hybrid Urban Mobility: Kick Scooter as a Means of Individual Transport in the City

    Publication

    The characteristic feature of a contemporary city is its inconvenience and oppressiveness caused by the hitherto dominant paradigm of urban planning based on car mobility. As a result, the inhabitants have to cope with air pollution, noise, spatial barriers, sedentary lifestyle and other factors which worsen their health and quality of life. Ecological and physically activating urban mobility thus plays an increasingly important...

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  • Knowledge engineer – more than only technical position. The concept of knowledge engineering education at the Faculty of Management and Economics

    Publication

    - Year 2014

    Organizational learning means an effective knowledge management. Management is nothing more than the constant decision-making. Therefore organizational learning must be seen through the prism of decisions taken at all levels. Unfortunately decisions are never taken within comfortable conditions. Decision maker suffers from a lack of any support. There is often a problem with human resources having right skills, sometimes they do...

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  • Metabolomic and antioxidant properties of different varieties and origins of Dragon fruit

    Publication

    - MICROCHEMICAL JOURNAL - Year 2021

    Dragon fruit has appealed much concern from consumers as a novelty fruit with potent nutritional and medicinal benefits. Dragon fruit quality warrants comprehensive evaluation, based on the contents of pigments and health- promoting natural compounds in different varieties. This study was aimed to evaluate the differences among dragon fruit varieties extracted with methanol–water (CD3OD-D2O) and methanol (CD3OD) by proton nuclear magnetic...

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  • ARCHITECTURE OF HYDROPOWER PLANTS IN POMORZE

    Publication

    - Year 2016

    The history of energetic use of the rivers of Pomerania (Pomorze) is traced from the late Middle Ages. Their potential due to geographical specificity of the region was still attractive in the era of electricity of the19th and the first half of the 20th century. Configuration of the terrain, geological, and natural restrictions, but mainly energetic potential of particular localization were crucial for economical success of the...

  • Leadership, culture, intellectual capital and knowledge processes for organizational innovativeness across industries: the case of Poland

    Publication

    Purpose – This study aims to present the overview of intellectual capital creation micro-mechanisms concerning formal and informal knowledge processes. The organizational culture, transformational leadership and innovativeness are also included in the investigation as ascendants and consequences of the focal relation of intellectual capital and knowledge processes. Design/methodology/approach – Based on a sample of 1,418 Polish...

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  • Elemental composition, environment of deposition of the Lower Carboniferous Emma Fiord Formation oil shale in Arctic Canada

    Publication

    - INTERNATIONAL JOURNAL OF COAL GEOLOGY - Year 2021

    The sedimentary succession of 51-m consisting of a thin coal seam (1 m) and oil shale with a marlstone and carbonate-mudstone matrix of the Lower Carboniferous (Viséan) Emma Fiord Formation located on the Grinnell Peninsula, Devon Island, Arctic Canada was examined. The techniques used include reflected light microscopy, and instrumental neutron activation analysis (INAA) for elemental concentration, and inductively coupled plasma...

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  • Can augmented democracy fulfil the ideal of deliberative democracy?

    Publication

    - Year 2023

    New technologies can broaden the scope of human limits. We can fly to the moon thanks to rocket science, we can communicate with each other by mobile phones and WiFi and we can exceed human life with medical equipment like pacemakers. But there are aspects of our life that still are very distrustful of implementing new technology into functioning. An example of such a field of our everyday life is...

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  • Self–Organizing Map representation for clustering Wikipedia search results

    Publication

    - Year 2011

    The article presents an approach to automated organization of textual data. The experiments have been performed on selected sub-set of Wikipedia. The Vector Space Model representation based on terms has been used to build groups of similar articles extracted from Kohonen Self-Organizing Maps with DBSCAN clustering. To warrant efficiency of the data processing, we performed linear dimensionality reduction of raw data using Principal...

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  • Przetwarzanie wielkoskalowych danych w ochronie zdrowia - możliwości i korzyści

    Publication

    - Year 2019

    W rozdziale przedstawiona została idea, pojęcia związane z przetwarzaniem wielkoskalowych danych oraz uogólniona architektura aktualnie wykorzystywanych tego typu systemów w zastosowaniach medycznych. Opisano funkcje oferowane przez bazowe elementy architektury ze szczególnym uwzględnieniem możliwości komponentu analityki dużych zbiorów danych medycznych. Na bazie dostępnej literatury przedmiotu dokonano zestawienia kluczowych...

  • Antipsychotic drug prescription sequence analysis in relation to death occurrence and cardiometabolic drug usage: A retrospective longitudinal study

    Publication
    • P. Zagozdzon
    • P. Dorozynski
    • P. Waszak
    • A. Harasimowicz
    • T. Dziubich

    - EUROPEAN JOURNAL OF PSYCHIATRY - Year 2023

    The potential role of antipsychotics in increasing cardiovascular risk of mortality is still debated. The aim of this study was to assess the death risk associated with sequences of first-generation antipsychotic (FGA) and second-generation antipsychotic (SGA) prescriptions, including clozapine and lithium, and drugs for cardiometabolic diseases. We conducted a retrospective longitudinal analysis involving 84,881 patients who received...

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  • Spatial Visualization Based on Geodata Fusion Using an Autonomous Unmanned Vessel

    Publication
    • M. Wlodarczyk-Sielicka
    • D. Połap
    • K. Prokop
    • K. Połap
    • A. Stateczny

    - Remote Sensing - Year 2023

    The visualization of riverbeds and surface facilities on the banks is crucial for systems that analyze conditions, safety, and changes in this environment. Hence, in this paper, we propose collecting, and processing data from a variety of sensors—sonar, LiDAR, multibeam echosounder (MBES), and camera—to create a visualization for further analysis. For this purpose, we took measurements from sensors installed on an autonomous, unmanned...

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  • Doskonalenie strumienia wartości

    Publication

    - Year 2009

    Książka ta ma na celu praktyczne ujęcie problemu optymalizacji przedsiębiorstwa opartej na koncepcji Lean (z ang. Lean – szczupły) i jej narzędziu Mapowania Strumienia Wartości. ---- Tu pobierzesz jej pełną treść w wersji elektronicznej: https://drive.google.com/file/d/1xNrdiuOHKpyjzG5dY3ocFG8fp2hY1b9C/view?usp=sharing ---- Prezentowane...

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  • Architektura a dekonstrukcja. Przypadek Petera Eisenmana i Bernarda Tschumiego

    Publication

    - Year 2015

    Architecture and Deconstruction Case of Peter Eisenman and Bernard Tschumi   Introduction Towards deconstruction in architecture Intensive relations between philosophical deconstruction and architecture, which were present in the late 1980s and early 1990s, belong to the past and therefore may be described from a greater than...

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