Filters
total: 9422
-
Catalog
- Publications 6650 available results
- Journals 48 available results
- Conferences 21 available results
- Publishing Houses 1 available results
- People 240 available results
- Inventions 15 available results
- Projects 6 available results
- Laboratories 2 available results
- Research Equipment 1 available results
- e-Learning Courses 700 available results
- Events 50 available results
- Open Research Data 1688 available results
displaying 1000 best results Help
Search results for: STRING MATCHING
-
Which vascular access technique should be chosen during hypovolemic shock?
Publication -
Endotracheal intubation during manual inline cervical stabilization performed by nurses
Publication -
Comparison of the UEScope videolaryngoscope with the Macintosh laryngoscope during simulated cardiopulmonary resuscitation
Publication -
An Insight into the Stages of Ion Leakage during Red Blood Cell Storage
Publication -
Obstructive sleep apnea and heart rate asymmetry microstructure during sleep
Publication -
Numerical analysis of the influence of combustible material on the temperature field during fire
Publication -
Cutting Forces and Vibrations During Ball End Milling of Inclined Surfaces
Publication -
Modeling of cutter displacements during ball end milling of inclined surfaces
Publication -
The analysis of instantaneous tool displacements during precise ball end milling
Publication -
Caring for Children with Dravet Syndrome: Exploring the Daily Challenges of Family Caregivers
Publication -
Influence of inorganic fillers on the degradation of polypropylene membranes during membrane distillation
Publication -
Histopathological examination of tissue resected during bariatric procedures – to be done or not to be done?
Publication -
Predicting the peak structural displacement preventing pounding of buildings during earthquakes
PublicationThe aim of the present paper is to verify the effectiveness of the artificial neural network (ANN) in predicting the peak lateral displacement of multi-story building during earthquakes, based on the peak ground acceleration (PGA) and building parameters. For the purpose of the study, the lumped-mass multi-degree-of-freedom structural model and different earthquake records have been considered. Firstly, values of stories mass and...
-
Global value chains and wages under different wage setting mechanisms
PublicationThis study examines whether, and how, differences in wage bargaining schemes shape the relationship between global value chains (GVCs) and the wages of workers while considering both GVC participation and position in GVC. Our dataset is derived from the European Structure of Earnings Survey (SES), containing employee–employer data from 18 European countries, merged with sectoral data from the World Input-Output Database (WIOD)....
-
Lateral forces determine dimensional accuracy of the narrow‑kerf sawing of wood
PublicationThe shrinking global forest area limits the supply of industrially usable raw resources. This, in combination with the ever‑increasing consumption of timber due to population growth can lead to the lack of a positive balance between the annual volumetric growth and consumption of wood. An important innovation toward increasing environmental and economic sustainability of timber production is to reduce the volume of wood residues...
-
Determination of equivalent axle load factors with the use of strain energy of distortion
PublicationThe paper proposes a new method for calculation of equivalent axle load factors based on the analysis of strain energy of distortion induced in road pavements by traffic loads. The main advantage of the method is the more accurate calculation of the effects of multiple axles and super single versus dual tyres. The methodconsiders the location of critical points, at which strain energy of distortion reaches extreme values. When...
-
Smart platforms for collaborative urban design and peer-to-peer sharing of resources
Publication.
-
Pressure drop and heat transfer during boiling and condensation at subcritical region
PublicationMost of the data presented in the literature relate to saturation temperatures in the range - 20°C to 40°C due to the application in refrigeration technology. There is necessity to extend databases to higher values of saturation temperature due to new applications such as Organic Rankine Cycle and high temperature heat pumps. Only few papers contain data for high reduced pressure for low boiling point liquids. This paper focus...
-
Mitigating Time-Constrained Stolen-Credentials Content Poisoning in an NDN Setting
PublicationNDN is a content-centric networking architecture using globally addressable information objects, created by publishers and cached by network nodes to be later accessed by subscribers. Content poisoning attacks consist in the substi-tution by an intruder publisher of bogus objects for genuine ones created by an honest publisher. With valid credentials stolen from an honest publisher, such attacks seem unstoppa-ble unless object...
-
Application of Stirling Engine Type Alpha Powered by the Recovery Energy on Vessels
PublicationThe Stirling engine is a device, in which thermal energy is transformed into mechanical without a contact between the heat carrier, and the working gas closed in the engine. Mentioned feature makes this type of engine very attractive for the use of the recovery energy, taken from other heat devices. One of the potential applications of Stirling engines is the use of thermal energy generated in the ship's engine room for producing...
-
A Theoretical and Experimental Study of Moderate Temperature Alfa Type Stirling Engines
PublicationThe Stirling engine is a device that allows conversion of thermal energy into mechanical energy with relatively high efficiency. Existing commercial designs are mainly based on the usage of high temperature heat sources, whose availability from renewable or waste heat sources is significantly lower than that of moderate temperature sources. The paper presents the results of experimental research on a prototype alpha type Stirling...
-
Surface effects of network materials based on strain gradient homogenized media
PublicationThe asymptotic homogenization of periodic network materials modeled as beam networks is pursued in this contribution, accounting for surface effects arising from the presence of a thin coating on the surface of the structural beam elements of the network. Cauchy and second gradient effective continua are considered and enhanced by the consideration of surface effects. The asymptotic homogenization technique is here extended to...
-
Stochastic model of the process of starting combustion engines and practical application of the process
PublicationW atrykule zaproponowano model procesu rozruchu silników o zapłonie samoczynnym w formie procesu semimarkowskiego dyskretnego w stanach i ciągłego w czasie. Zaproponowano również koncepcję zastosowania opracowanego modelu do określenia ilości substancji szkodliwych, jakie są emitowane wraz z spalinami do otoczenia podczas rozruchu każdego silnika. W rozważaniach tych przyjęto, że statystyka zmiennej losowej, rozumianej jako masa...
-
Numerical calculations of behaviour of ship double-bottom structure during grounding
PublicationIdeą projektu CORET jest dodanie do obecnej konstrukcji dna podwójnego statku specjalnych powłok polimerowo-betonowych w celu zwiększenia odporności na rozszczelnienie podczas kolizji, czy wejścia na mieliznę. Aby poprawnie zaprojektować te bariery ochronne konieczne jest przeprowadzenie symulacji numerycznej. Tworzenie modelu numerycznego konstrukcji podczas kolizji jest bardzo złożone i wymaga wykonania symulacji pomocniczych...
-
Sawing frozen wood with narrow kerf saws: Energy and quality effects.
PublicationOpór skrawania zależy podczas przecinania nie tylko od wilgotności drewna lecz również od jego temperatury. W pracy przedstawiono wyniki badań eksperymentalnych przecinania drewna sosnowego zmrożonego na pilarce ramowej wielopiłowej. Dla porównania wykonano również testy dla drewna o temperaturze pokojowej. Czynnikami badanymi były: moc skrawania, dokładność przecinania w postaci grubości elementów, a także chropowatość powierzchni....
-
Fluctuation of nitrogen fraction during wastewater treatment in a multistage treatment wetland
PublicationFactors influencing COD and removal and transformation of N fractions have been investigatedin the conditions of horizontal (SSHF) and vertical (SSVF) flow reed beds. Multistage treatment wetlandin Wiklino ensured a stable and very effective removal of all the analysed pollutants. Based onthe resultsof investigation, it could be assumed that the working conditions of SSHF beds play an importantrole in the transformation of particulate...
-
Urinary Tract Infections of Escherichia coli Strains of Chaperone-Usher System
PublicationZakażenia dróg moczowych stanowią bardzo poważny problem zdrowotny i ekonomiczny dotyczący milionów ludzi, każdego roku na całym świecie. Najbardziej rozpowszechnionym czynnikiem etiologicznym tego typu infekcji bakteryjnych, obejmujących górne i dolne drogi moczowe, są szczepy E. coli, reprezentujące około 80% przypadków. Uropatogenne szczepy E. coli produkują kilka czynników urowirulentncyh, które można podzielić na dwa główne...
-
Vibration surveillance during milling of flexible details with a use of the optimal control
PublicationPraca dotyczy nadzorowania drgań podczas obróbki frezem kulistym zakrzywionych przedmiotów podatnych. Utworzono model hybrydowy niestacjonarnego układu drgającego i wydzielono podukłady: strukturalny, modalny oraz łączący. Istotnym zadaniem było utworzenie modelu przedmiotu podatnego w konwencji metody elementów skończonych oraz uzyskanie dobrej zgodności modelu z wynikami eksperymentalnej analizy modalnej obiektu rzeczywistego.
-
Calculation of motion trajectory and geometric parameters of the trawl during pelagic fishing
PublicationThis paper presents a mathematical model of the mass centre motion trajectory of the trawl, its main geometrical parameters, way of solving the model as well as its example results. It could be useful to define optimum parameters of safe, effective and environmentally friendly pelagic fishing.
-
The fundamentals of narrow-kerf sawing; the mechanics and quality of cutting / K. A. Orłowski.
PublicationW pracy przedstawiono ekonomiczne i ekologiczne uwarunkowania dokładnego przecinania drewna za pomocą pił cienkich (o niewielkiej wartości rzazu). Opisano współczesne technologie wykorzystujące cienkie piły: pilarki tarczowe wielopiłowe, pilarki taśmowe i ramowe. W rozdziale drugim omówiono siły skrawania w ujęciu klasycznym, w którym do ich szacowania przyjmuje się przede wszystkim wartości właściwego powierzchniowego oporu skrawania,...
-
Influence of Antimony Substitution on Spontaneous Strain and Thermodynamic Stability of Lanthanum Orthoniobate
PublicationThe analysis of the antimony substitution influence on temperature dependence of unit cell distortion has been done. The values of spontaneous strain and Landau order parameter for three different antimony contents varied had been calculated. The phase transition occurring for antimony substituted lanthanum orthoniobate was found to be second order. The high temperature solution calorimetry method has been used to investigate...
-
The Influence of Modelling Material Zones on Strains and Stresses at Weld Toe Notch
PublicationThe latest development in the field of welding technology enabled prefabrication of thin-walled sandwich structures in an industrial scale. Sandwich structures fabricated of steel, or aluminium alloy plates and stiffeners are welded with the use of hi-power CO2 lasers. Strength analysis of such structures with the use of finite element method needs proper material modelling.In this paper the material model of steel sandwich panel...
-
Failure of austenitic stainless steel tubes during steam generator operation
PublicationThe article presents the failure process of austenitic stainless steels used in power devices, such as heat exchangers, steam generators, in terms of local corrosion: pitting, stress and intergranular corrosion, paying particular attention to welded joints area. The effect of steel chemical composition, microstructure, welding process and work environment was analyzed. The second part of the article presents the results of the...
-
Effects of Addictive Substances During Pregnancy and Infancy and Their Analysis in Biological Materials
PublicationThe use of addictive substances during pregnancy is a serious social problem, not only because of effects on the health of the woman and child, but also because drug or alcohol dependency it detracts from childcare and enhances the prospect of child neglect and family breakdown. Developing additive substance abuse treatment programs for pregnant women is socially important and can help ensure the health of babies, prevent subsequent...
-
Response of a steel tank during earthquakes and mining tremors - experimental investigation
PublicationCylindrical steel tanks are very popular shell structures used to store the products of chemical and petroleum industries. Any failure might have disastrous consequences, therefore their safety and reliability is essential. Earthquakes are the most dangerous and also the most unpredictable dynamic loads acting on such structures. On the other hand, mining tremors are usually considered to be less severe due to lower acceleration...
-
Application of Fracture Mechanics for Energetic Effects Predictions While Wood Sawing
PublicationIn the classical approach, energetic effects (cutting forces and cutting power) of wood sawing process are generally calculated on the basis of the specific cutting resistance, which is in the case of wood cutting the function of more or less important factors. On the other hand, cutting forces (or power - more interesting from energetic point of view) could be considered from a point of view of modern fracture mechanics. Cutting...
-
SAWING PROCESS AS A NEW ALTERNATIVE WAY OF DETERMINING SOME WOOD PROPERTIES
PublicationCutting forces (power) could be considered from a point of view of modern fracture mechanics. The developed cutting model, derived from fracture mechanics, includes work of separation (fracture toughness) in addition to plasticity and friction, and also dullness of the cutting edge described by the cutting edge radius. Moreover, forecasting of the shear plane angle for the cutting models, broaden possibilities of energetic effects...
-
Identification of diagnostic parameter sensitivity during dynamic processes of a marine engine
PublicationChanging some parameters of the engine structure alters the emission of harmful components in the exhaust gas. This applies in particular to the damage of charge exchange system as well as fuel system and engine supercharger. These changes are much greater during the dynamic states and their accompanying transitional processes. The different sensitivity of diagnostic parameters to the same force, coming from the engine structure, but...
-
Vibration surveilance during milling of flexible details with a use of the optimal control
PublicationPraca dotyczy nadzorowania drgań podczas często obserwowanego w przypadku nowoczesnych procesów obróbkowych frezowania przedmiotów podatnych smukłymi narzędziami. Sformułowano: macierzowe równanie dynamiki, energetyczny wskaźnik jakości i optymalny sygnał sterujący we współrzędnych hybrydowych. Przeprowadzono symulacje komputerowe procesu frezowania dla różnych parametrów modelu obliczeniowego i rożnych ścieżek narzędzia. Zaproponowano...
-
Security information sharing for smart grids: Developing the right data model
PublicationThe smart grid raises new security concerns which require novel solutions. It is commonly agreed that to protect the grid the effective collaboration and information sharing between the relevant stakeholders is prerequisite. Developing a security information sharing platform for the smart grid is a new research direction which poses several challenges related to the highly distributed and heterogeneous character of the grid. In...
-
Pounding of structures during earthquakes modelled by nonlinear viscoelastic impact element.
PublicationAnalizowano zderzenia konstrukcji budowlanych podczas trzęsień ziemi wykorzystując model lepkosprężysty siły zderzenia. W analizie, zachowanie konstrukcji o różnych własnościach dynamicznych symulowane jest modelem dyskretnym o skupionych masach. wyniki badań pokazują, iż zderzenie może prowadzić do znacznego wzrostu odpowiedzi konstrukcji mniej sztywnej i lżejszej.
-
Evolutionary - fuzzy hybrid system of steering the moveable object in dynamic environment
Publication...
-
Komponenty strony internetowej. Zastosowanie Komputerów w Nauce i Technice
PublicationArtykuł dotyczy technologii budowania stron, a także całych serwisów internetowych. Opisano różnorodność komponentów, jakie wchodzą w skład strony internetowej. Poruszono kwestie różnorodności technologicznej komponentów.Aplikacje internetowe podzielono na trzy rodzaje w zależności od typu komponentów, jakie zawierają. Szczegółowo omówiono model dla najprostszego typu stron internetowych i ich komponenty. Pokazano także...
-
Harmonic Synthesis: A Novel Electrochemical Method for Corrosion Rate Moni-toring
PublicationPraca przedstawia metodę wyznaczania chwilowej szybkości korozji metali opa-rtą na pomiarach prądów harmonicznych elektrody pobudzanej sinusoidalnym sy-gnałem napięciowym o niskiej częstotliwości i amplitudzie rzędu 10-30 mV,zapewniającej nieniszczący charakter badań. Opisano podstawy teoretyczne tejmetody nazwanej syntezą harmoniczną (SH). Jest ona oparta na dyskretnej syn-tezie quasi-stacjonarnej krzywej polaryzacji z prądów...
-
Low temperature rotary Stirling engine: conceptual design and theoretical analysis
PublicationThe use of low-temperature energy sources for electricity generation demands a dual focus: a substantial enhancement in the efficiency of energy conversion devices and a reduction in system production costs. Particularly in scenarios where low-temperature energy sources are scarce, this factor can be pivotal in facilitating widespread adoption of such technologies. The Stirling engine emerges as a promising solution capable of...
-
Intercomparison on measurements of PCBs in pork fat during the Belgian PCB-crisis
PublicationW pracy przedstawiono wyniki porównania międzylaboratoryjnego oznaczania PCB w tłuszczu wieprzowym. Porównanie międzylaboratoryjne przeprowadzono w związku z tzw. "belgijskim kryzysem PCB" w latach 1999-2000. W porównaniu uczestniczyło 31 laboratoriów. Materiałem do badań były wyprodukowane w Instytucie Metod i Pomiarów Odniesienia (IRMM) w Geel - Belgia, trzy materiały odniesienia zawierające PCB w tłuszczu wieprzowym (suma PCB...
-
Analyses of static displacements of a spindle apllied in typical circular sawing machines
PublicationW pracy przedstawiono analizę właściwości statycznych wrzeciona stosowanego w typowych pilarkach tarczowych. Zdefiniowano umowną oś obrotu wrzeciona pilarki tarczowej, która odpowiada geometrycznemu środkowi otworu piły tarczowej. W obliczeniach wyznaczono przemieszczenia umownej osi obrotu wrzeciona, wskaźnik sztywności wrzeciona oraz przemieszczenie poprzeczne piły.
-
Assessment of reformer tubes degradation during longterm service at elevated temperatures
Publication -
Abrasive property evaluation during microgrinding with single-disk lapping kinematics
PublicationPrzedstawiono wyniki badań mikroszliwowania z kinematyką docierania jednotarczowego. Analizowano narzędzie pod kątem trwałości. Wyznaczono zmieniające się właściwości ścierne narzędzia z wykorzystaniem systemu do automatycznej analizy obrazu.
-
Stabilization of Solid Residues Obtained During Sewage Sludge Thermal Treatment
PublicationCurrently wastewater treatment plants are still dealing with the problem of ecological management of sewage sludge. Nowadays, thermal utilization is considered the most eco-friendly way of processing excess sludge. However, during mentioned process, fractions of ashes and dusts are generated. Such wastes, especially dusts fraction, can be potentially harmful for the environment and wastes should be stabilized before further management....