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Wyniki wyszukiwania dla: CRITICAL SUCCESS FACTORS
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Knowledge-based functional safety and security management in hazardous industrial plants with emphasis on human factors
PublikacjaExisting and emerging new hazards have significant potential to impact destructively operation of technical systems, hazardous plants, and systems / networks of critical infrastructure. The programmable control and protection systems play nowadays an important role in reducing and controlling risk in the process of hazardous plant operation. It is outlined how to deal with security related hazards concerning such systems to be...
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Group-9 Transition-Metal Suboxides Adopting the Filled-Ti2Ni Structure: A Class of Superconductors Exhibiting Exceptionally High Upper Critical Fields
PublikacjaTi2Ni and the related η-carbide structure are known to exhibit various intriguing physical properties. The Ti2Ni structure with the cubic space group Fd3̅m is surprisingly complex, consisting of a unit cell with 96 metal atoms. The related η-carbide compounds correspond to a filled version of the Ti2Ni structure. Here, we report on the structure and superconductivity in the η-carbide-type suboxides Ti4M2O with M = Co, Rh, and Ir....
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Effect of Tool Positioning Factors on the Strength of Dissimilar Friction Stir Welded Joints of AA7075-T6 and AA6061-T6
PublikacjaFriction Stir Welding (FSW) is a solid-state bonding technique. There are many direct and indirect factors affecting the mechanical and microstructural properties of the FSW joints. Tool offset, tilt angle, and plunge depth are determinative tool positioning in the FSW process. Investigating the effect of these factors simultaneously with other parameters such as process speeds (rotational speed and translational speed) and tool...
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Research Platform for Monitoring, Control and Security of Critical Infrastructure Systems
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Potentiometric detection of organic ionics in separation methods: a critical evaluation
PublikacjaCzujniki potencjometryczne są w tej chwili stosowane głównie w połączeniu ze wstrzykową analizą przepływową. Badano membranowe czujniki potencjometryczne pod względem zastosowania w połączeniu z wysokosprawną chromatografią cieczową i elektroforezą kapilarną. Stosowano anality takie jak środki powierzchniowo czynne i proste leki. Zauważono, że czujniki potencjometryczne dają dobre odpowiedzi na małe i duże jony z ładunkiem wielokrotnym...
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Dedicated Geographical Information System in the context of Critical Infrastructure Protection
PublikacjaNowe zaawansowane narzędzia Technologii Informacyjnych i Komunikacyjnych mogą stanowić bardzo użyteczną pomoc podczas przewidywania różnego rodzaju zagrożeń jak również minimalizacji związanego z nimi ryzyka. Artykuł prezentuje Sieciowy System Informacji Przestrzennej dla Szacowania i Wizualizacji Infrastruktur Krytycznych i ich Zagrożeń, stworzony dla Urzędu Miejskiego w Gdańsku przez Politechnikę Gdańską. System ten jest przeznaczony...
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Assessment of a critical area for a give-way ship in a collision encounter
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Assessment of the level of reliability of power supplies of the objects of critical infrastructure
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Information and Konowledge management: advances, approaches, challenges and critical issues
PublikacjaPrzedstawiono zarys najnowszych osiągnięć w zakresie zarządzania wiedza i informacja wraz z ich krytyczna ocena.
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A Typology of Small Business Growth Modelling: A Critical Literature Review
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Critical conditions of hydrogen-air detonation in partially confined geometry
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Electronic Cigarette Use and Metabolic Syndrome Development: A Critical Review
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Revealing the anisotropy effects on the critical magnetic field in CaC6 superconductor
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Comparative conformance cases for monitoring multiple implementations of critical requirements
PublikacjaThe paper presents the concept and the mechanism of comparative conformance cases which support conformance monitoring in situations where a standard or other set of requirements are being implemented at multiple sites. The mechanism is enabled by NOR-STA services which implement the TRUST-IT methodology and are deployed in the cloud in accordance with the SaaS model. In the paper we introduce the concept of comparative conformance...
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A direct method for risk assessment when ship is in critical conditions
PublikacjaPrzedstawiono metodę oceny bezpieczeństwa statku w warunkach krytycznych. Zdefiniowano warunki krytyczne. Podano praktyczne sposoby oceny ryzyka przetrwania statku w warunkach krytycznych. Opisano bezpośrednią metodę oceny ryzyka w warunkach krytycznych. Podano przykłady oceny ryzyka.
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Critical minima in elastic scattering of electrons from Ar and Zn.
PublikacjaDokonano obliczeń różniczkowych przekrojów czynnych na sprężyste rozpraszanie elektronów na atomach argonu i cynku. Otrzymane minimum krytyczne z tych przekrojów porównano z niedawno otrzymanymi danymi doświadczalnymi.
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The high-energy critical minimum in elastic electron scattering by argon.
PublikacjaZostało zbadane położenie wysokoenergetycznego minimum krytycznego w rozpraszaniu elektronów na argonie. W celu przeprowadzenia dyskusji zachowania się czynnego przekroju różniczkowego w okolicy minimum krytycznego przeprowadzono analizę położenia minimum zarówno dla energii, jak i kątów.
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Recent advances in reinforced bioplastics for food packaging – A critical review
PublikacjaRecently, diversifying the material, method, and application in food packaging has been massively developed to find more environment-friendly materials. However, the mechanical and barrier properties of the bioplastics are major hurdles to expansion in commercial realization. The compositional variation with the inclusion of different fillers could resolve the lacking performance of the bioplastic. This review summarizes the various...
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A Critical Reanalysis of Uncontrollable Washboarding Phenomenon in Metal Band Sawing
PublikacjaThe article analyzes the cutting process of hard bars. Investigations conducted in industrial conditions demonstrated the presence of surface errors in the machined workpieces in the form of washboard patterns. The purpose of this study was to analyze the results of cutting on band sawing machines with different band saw blades. The cutting processes were conducted on three different horizontal band sawing machine types. Analyzed...
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Visual method for detecting critical damage in railway contact strips
PublikacjaEnsuring an uninterrupted supply of power in the electric traction is vital for the safety of this important transport system. For this purpose, monitoring and diagnostics of the technical condition of the vehicle's power supply elements are becoming increasingly common. This paper presents a new visual method for detecting contact strip damage, based on measurement and analysis of the movement of the overhead contact line (OCL)...
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Numerical simulation of the influence of the selected factors on the performance of a concrete road barrier H2/W5/B
PublikacjaThis paper discuss the influence of selected factors on the performance of a concrete road barrier H2/W5/B. Modelling techniques of a concrete road safety system were briefly discussed. Comparison to the full scale crash test results has been shown. The concrete road safety barrier has been investigated for evaluation of the overall damage after collision under various initial conditions. The failure assessment criterion has been...
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Łukasz Bugalski dr inż. arch.
OsobyŁukasz Bugalski ukończył studia na kierunku Architektura i Urbanistyka (2013) oraz obronił doktorat (2013-2018) z tej samej dyscypliny naukowej (Politechnika Gdańska). Był stypendystą programu Marie Skłodowska-Curie (2017-2020) w zakresie critical heritage studies jako część projektu "CHEurope" (MSCA Innovative Training Network) odbytego w Istituto per i Beni Artistici, Culturali e Naturali della Regione Emilia-Romagna w Bolonii...
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Functional safety and cyber security analysis for life cycle management of industrial control systems in hazardous plants and oil port critical infrastructure including insurance
PublikacjaThis report addresses selected methodological aspects of proactive reliability, functional safety and cyber security management in life cycle of industrial automation and control systems (IACS) in hazardous plants and oil port critical installations based on the analysis of relevant hazards / threats and evaluation of related risks. In addition the insurance company point of view has been also considered, because nowadays the insurer,...
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Alphitobius diaperinus larvae (lesser mealworm) as human food – An approval of the European Commission – A critical review
PublikacjaDue to the increasing threat of climate change and the need for sustainable food sources, human consumption of edible insects or entomophagy has gained considerable attention globally. The larvae of Alphitobius diaperinus Panzer (Coleoptera: Tenebrionidae), also known as the lesser mealworm, have been identified as a promising candidate for mass-rearing as a food source based the on evaluation on several aspects such as the production...
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Shading, Dusting and Incorrect Positioning of Photovoltaic Modules as Important Factors in Performance Reduction
PublikacjaThe amount of solar radiation reaching the front cover of a photovoltaic module is crucial for its performance. A number of factors must be taken into account at the design stage of the solar installation, which will ensure maximum utilization of the potential arising from the location. During the operation of a photovoltaic installation, it is necessary to limit the shading of the modules caused by both dust and shadowing by trees...
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Critical Review on Robust Speed Control Techniques for Permanent Magnet Synchronous Motor (PMSM) Speed Regulation
PublikacjaThe permanent magnet synchronous motor (PMSM) is a highly efficient energy saving machine. Due to its simple structural characteristics, good heat radiation capability, and high efficiency, PMSMs are gradually replacing AC induction motors in many industrial applications. The PMSM has a nonlinear system and lies on parameters that differ over time with complex high-class dynamics. To achieve the excessive performance operation...
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Road safety performance indicators and their explanatory value: A critical view based on the experience of Central European countries
PublikacjaCounts of road crashes and their victims represent essential information for road safety practitioners allowing them to analyse their spatial and temporal aspects. However, they cannot provide details on the factors causing road crashes. As a result, various road safety performance indicators (RSPIs) were introduced, making it possible to gather information on the effectiveness of interventions on road safety in given areas. However,...
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Catheter-induced coronary artery and aortic dissections. A study of the mechanisms, risk factors, and propagation causes
PublikacjaBackground: Only the incidence, management, and prognosis of catheter-induced coronary artery and aortic dissections have been systematically studied until now. We sought to evaluate their mechanisms, risk factors, and propagation causes. Methods: Electronic databases containing 76,104 procedures and complication registries from 2000– –2020 were searched and relevant cineangiographic studies adjudicated. Results: Ninety-six dissections...
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Uniform expansion estimates in the quadratic map with the smallest critical neighborhood for which the expansion exponent λ0 is positive
Dane BadawczeThis dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.
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Uniform expansion estimates in the quadratic map with the smallest critical neighborhood for which the expansion exponent λ is positive
Dane BadawczeThis dataset contains selected results of numerical computations described in the paper "Quantitative hyperbolicity estimates in one-dimensional dynamics" by S. Day, H. Kokubu, S. Luzzatto, K. Mischaikow, H. Oka, P. Pilarczyk, published in Nonlinearity, Vol. 21, No. 9 (2008), 1967-1987, doi: 10.1088/0951-7715/21/9/002.
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Factors Influencing the Popularity of Artificial Insemination of Mares in Europe
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Packing [1,Delta]-factors in graphs of small degree
PublikacjaRozważano problem znalezienia w grafie zadanej liczby k krawędziowo rozłącznych [1,Delta]-faktorów, gdzie Delta oznacza stopień grafu. Problem ten można rozwiązać w czasie liniowym dla k=2, jest on jednak NP-trudny dla każdego k>=3. Pokazano, że wariant minimalizacjny problemu dla k=2 jest NP-trudny dla grafów planarnych podkubicznych, jednak w ogólności istnieje algorytm (42 Delta - 30) / (35 Delta - 21) - aproksymacyjny.
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Factors Determining the Susceptibility of Bacteria to Antibacterial Photodynamic Inactivation
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Assessment of the Degree of Factors Impact on Employment in Ukraine’s Agriculture
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Ab initioheat capacity and atomic temperature factors of chalcopyrites
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Personality Factors Crucial in Internalized Stigma Understanding in Psychiatry
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The influence of cultural factors on the collapse of the Greenland Norse civilization
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Characteristic of factors influencing the proper course of folliculogenesis in mammals
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Factors influencing the development of otitis media with effusion in children
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Molecular factors involved in the development of diabetic foot syndrome.
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The impact of stress and selected environmental factors on cows’ reproduction
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Bearing capacity factors of sand assessed by model tests
PublikacjaPrzedstawiono wyniki własnych badań modelowych fundamentów bezpośrednich posadowionych na trzech rodzajach piasków, wykonane w warunkach płaskiego stanu odkształcenia. Przeanalizowano wpływ tarcia gruntu o ściany boczne stanowiska badawczego, wpływ efektu skali oraz powtarzalności wyników na nośność badanych fundamentów bezpośrednich. Zastosowano specjalną własną metodykę wykonywania badań modelowych eliminującą wymieniony wpływ...
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Assessing the Risk in Urban Public Transport for Epidemiologic Factors
PublikacjaPandemics have presented new challenges for public transport organisers and operators. New diseases (e.g., influenza H1N1, severe acute respiratory syndrome—SARS, as well as, more recently, SARS-CoV-2) increase the need for new protection measures to prevent epidemic outbreaks in public transport infrastructure. The authors’ goal is to present a set of actions in the area of public transport that are adjusted to different levels...
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Neurological Prognostic Factors in Hospitalized Patients with COVID-19
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Why do Poles withdraw from the labour market so early? - systematics of the factors influencing Poles' decisions to retire
PublikacjaThe study undertakes to identify the factors that influence the decisions of the working population approaching retirement age to withdraw from the labour market (which in this case is equivalent to retirement) or continue economic activity (also after reaching the formal retirement age)
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Possibilities of Phoslock® application to remove phosphorus compounds from wastewater treated in hybrid wetlands
PublikacjaTreatment wetland technologies for wastewater treatment can be easily applied for removal of all pollutants except phosphorous. They are applicable in a small towns and rural areas, places where conventional wastewater treatment plant cannot properly operate because of common economic constraints. In Poland only the 8% of rural areas are equipped with sewer system, thus treatment wetlands might be an alternative, effective and...
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Real-Time Facial Features Detection from Low Resolution Thermal Images with Deep Classification Models
PublikacjaDeep networks have already shown a spectacular success for object classification and detection for various applications from everyday use cases to advanced medical problems. The main advantage of the classification models over the detection models is less time and effort needed for dataset preparation, because classification networks do not require bounding box annotations, but labels at the image level only. Yet, after passing...
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Shooting Gas Cylinders to Prevent Their Explosion in Fire
PublikacjaGas cylinders in general, and particularly cylinders containing acetylene, constitute a great potential danger to fire and rescue services involved in salvage operations. Experiments show that gas cylinders with acetylene, oxygen, hydrogen, CNG, LPG or CO2 may blow after short exposition to heat with very destructive effect as fragments of blown cylinder may fly even several hundred meters. In the case of acetylene the explosion...
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Knowledge management and factors influencing its implementation in small KIBS firms – evidence from Poland
PublikacjaPurpose – Even if the notion of knowledge management (KM) has been introduced more than three decades ago, the application of this concept in the context of small firms has still not been sufficiently explored. The relatively few contributions, however, agree on the fact that small companies do not manage knowledge the same way as their larger counterparts. In order to fill this gap, the present paper aims to the investigate the...
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Critical Studies: A Journal of Critical Theory, Literature and Culture
Czasopisma