Filters
total: 5582
-
Catalog
displaying 1000 best results Help
Search results for: GORDON CONDITION
-
Effects of stents under asymmetric inflow conditions
PublicationW publikacji rozważano komputerowe modele stentów przy niesymetrycznych warunkach napływu i ich wpływ na naprężenia styczne na ściankach. Umożliwia to znajdowanie kształtów stentów, które są mniej wrażliwe na brak symetrii napływu. Zmiany kształtów arterii można wiązać ze zmianami charakterystyki przepływów takimi jak m.in. naprężenia styczne na ściankach, które zwiększają ryzyko restenozy. Posłużono się również pojęciem dyssypacji...
-
Complexity of weak acceptonic conditions in tree automata
PublicationRozważano złożoność problemu pustości dla automatów na drzewach ze słabymi warunkami akceptowalności. Rozważano także translacje pomiędzy słabymi i silnymi warunkami akceptowalności.
-
Existence of solutions of differential equations with boundary conditions
PublicationPraca dotyczy równań różniczkowych z liniowym warunkiem brzegowym zależnym od parametru. Podane zostały warunki dostateczne na istnienie rozwiązania powyższego zagadnienia. Przy dowodzie i konstrukcji iteracji monotonicznych zastosowano metodę górnych i dolnych rozwiązań. O prawej stronie zagadnienia zakładano jednostronny warunek Lipschitza.
-
Influence of the annealing conditions on the resistivity of Nd2CuO4 singlecrystals
PublicationW pracy wyznaczono temperaturową zależność oporności w płaszczyźnie ab dla dwóch grup kryształów Nd2CuO4 w zakresie 50-300 K.
-
Advanced differential equations with nonlinear boundary conditions.
PublicationBadano problemy istnienia rozwiązań dla równań różniczkowych z nielinowymi warunkami brzegowymi. Podano też warunki dostateczne na istnienie rozwiązań ekstremalnych. Przedmiotem badań były również nierówności różniczkowe z wyprzedzonym argumentem.
-
On delay differential equations with nonlinear boundary conditions
PublicationStosując metodę iteracji monotonicznych podano warunki dostateczne na istnienie kwazirozwiązań lub ekstremalnych rozwiązań rozpatrywanego zagadnienia. Problem jednoznaczności rozwiązania był również przedmiotem badań. Zajmowano się również nierównościami różniczkowymi z opóżnionymi argumentami.
-
ASSESSMENT OF WEAR OF THE BANDSAW TEETH IN INDUSTRIAL CONDITIONS
PublicationA methodology for measuring bandsaw tooth wear is presented in this paper. This type of measurement is proposed as an alternative way of determining tooth wear in industrial conditions. The method is based on determining the KE value, i.e., the distance of the radius of the rounded cutting edge of the tooth and the intersection of the surface of the back and the surface of the face of the cutting wedge of the bandsaw tooth....
-
Different types of solvability conditions for differential operators
PublicationSolvability conditions for linear differential equations are usually formulated in terms of orthogonality of the right-hand side to solutions of the homogeneous adjoint equation. However, if the corresponding operator does not satisfy the Fredholm property such solvability conditions may be not applicable. For this case, we obtain another type of solvability conditions, for ordinary differential equations on the real axis, and...
-
CONDITIONS OF THE GREEN TRANSFORMATION. THE CASE OF THE EUROPEAN UNION
PublicationThe main purpose of the paper is to identify the factors that determine the course of green transformation and to assess the current stage and possible directions of change in subsequent years in EU countries. The literature lacks comprehensive studies that show the impact of diverse types of factors on the course of green transformation. For this purpose, two perspectives of the research – economic and environmental – are usually...
-
INFLUENCE OF MEASURING CONDITIONS ON TYRE/ROAD NOISE
PublicationA decisive factor for the development of tyres and road surfaces is the ability to conduct representative and reproducible measurements of selected characteristics related to the interaction of tyres and road surfaces. In terms of tyre/road noise measurements in Europe two methods described in ISO/FDIS 11819-2 and ECE Regulation No.117 are used. The latter is compulsory for assigning the tyre noise labels. The methodologies differ...
-
A model of risk for assessment of ships in damaged conditions
PublicationW pracy omówiono problemy związane z modelowaniem zagrożeń, konsekwencji i ryzyka, w metodzie oceny bezpieczeństwa statków w stanie uszkodzonym. W celu dokonania oceny bezpieczeństwa statku, w metodzie zastosowano podejścia oparte na ocenie zachowania się statku i ocenie ryzyka. Podejście oparte na ocenie zachowania się statku związane jest z oceną charakterystyk hydromechanicznych statku w stanie uszkodzonych w warunkach zbliżonych...
-
Degradation of polyurethanes in Compost Under Natural Conditions
PublicationThe estimation of degradibility of different polyurethanes under natural weather depending conditions in compost pile was the subject of the studies. The incubation of polymer samples took place for a period up to 24 months. The characteristic parameters of the compost: temperature, pH, moisture content, and activity of dehydrogenasis were monitored and their influence on degradation of polyuiretahnes was discussed. The compostability...
-
Exact resultant equilibrium conditions for intersecting shells
PublicationWyprowadzono ścisłe, globalne i lokalne warunki równowagi dla dwóch przecinających się powłok. Wspólna powierzchnia podstawowa powłoki składa się z czterech regularnych powierzchni materialnych, sztywno połączonych wzdłuż powierzchniowej krzywej osobliwej modelującej połączenie. Localne warunki równowagi otrzymano poprzez ścisłe całkowanie po grubości powłoki globalnych warunków równowagi mechaniki ośrodka ciągłego.
-
Reception of GNSS Signals Under Jamming Conditions
PublicationThe article focuses on performance of Global Navigation Satellite System receivers in environment where intentional interference is present. First part is a general description of GNSS systems. Secondly, types of positioning service disturbances are specified. In the third part authors present a scheme of measurement stand which is used to evaluate the influence of interference on reception of navigation signals. Next, research...
-
Improving the quality of speech in the conditions of noise and interference
PublicationThe aim of the work is to present a method of intelligent modification of the speech signal with speech features expressed in noise, based on the Lombard effect. The recordings utilized sets of words and sentences as well as disturbing signals, i.e., pink noise and the so-called babble speech. Noise signal, calibrated to various levels at the speaker's ears, was played over two loudspeakers located 2 m away from the speaker. In...
-
Assessment of Road Restraint Systems in Polish Conditions
PublicationKey to understanding the needs and tools of road infrastructure management is identifying the hazards and their sources involved in having no or faulty road restraint systems. Clarity is also needed on why the systems are wrongly designed, constructed, built and operated. To ensure that the problem is adequately understood, research and site observations were conducted and...
-
NON-LINE ANALYSIS OF STIFFNESS IN COMPRESSION CONDITIONS
PublicationThe analyzes were aimed at demonstrating the influence of parameters describing the deformation of the structure on the uncertainty of critical force, and the impact of technological imperfections on stress uncertainty in compression conditions. In a linear buckling analysis, the problem is considered only for the initial, permanent state of the stiffness matrix. In the case of demonstrating the influence of initial deformations...
-
Conditions and capacity for implementing Poland’s vision zero
PublicationSince 1991 Poland has been systematically reducing its traffic hazard. Despite considerable progress Poland is still among the most dangerous countries in the European Union. The key types of actions that help to reduce fatalities include enhancement of pedestrian safety, reducing the number of speeding drivers and eliminating or reducing hazard on the road. The paper presents a brief diagnosis of the state of road safety in Poland...
-
COMPUTER ANALYSIS OF HYDRAULIC CONDITIONS IN A SANITARY CHAMBER
PublicationThis paper presents analysis of hydraulic conditions of sewage flow down the slipway (ramp) in the collecting sanitary chamber connecting 3 collectors on the inlet: ⌀600, ⌀800 and ⌀1400 and one on the outlet ⌀1600 mm, with a maximum difference of elevation 5 m. The mathematical model has been made and hydraulic calculations were carried out in steady flow conditions. Then wastewater surface elevation, energy grade line elevation,...
-
Condition Monitoring of Metallized Polypropylene Film Capacitors in Railway Power Trains
Publication -
A CUSUM-Based Approach for Condition Monitoring and Fault Diagnosis of Wind Turbines
Publication -
Dental Condition as A Factor Modifying the Transmission of the Sound Vibration in the Skull Bones
Publication -
Is the Naturalization of the Townscape a Condition of De-Industrialization? An Example of Bytom in Southern Poland
Publication -
Hydrodynamic Loads on Marine Propellers Subject to Ventilation and Out of Water Condition
Publication -
Hydrodynamic Loads on Marine Propellers Subject to Ventilation and Out of Water Condition
Publication -
COMPARISON OF PROPAGATION METHOD IN IN VITRO AND IN VIVO CONDITION OF Lonicera caerulea L.
Publication -
CAPABILITY OF IDENTIFYING AND PREDICTING THE TECHNICAL CONDITION OF PLATE HEAT EXCHANGERS IN OPERATION
PublicationThe paper presents a test stand for plate heat exchangers, allowing to identify the technical condition and to predict durability of the heat exchangers used aboard the sea-going ships: ”Oceanograf”, ”Władysław Orkan”and a passenger-car ferry, under the condition that they are of the same type and manufactured by the same company. In the first part three different installations with plate heat exchangers in the engine rooms...
-
Applying of thin plate boundary condition in analysis of ship’s magnetic field
PublicationThis paper presents computer simulations of ship’s magnetic signatures using a new thin plate boundary condition implemented in the Opera-3d 18R2 program. The paper aims to check the magnetic signatures’ numerical calculations precision of objects using the thin plate boundary conditions and analysis of the magnetic signature of ship with a degaussing system and with and without inner devices.
-
Elastic wave propagation for condition assessment of steel bar embedded in mortar
PublicationThis study deals with experimental and numerical investigations of elastic wave propagation in steel bars partially embedded in mortar. The bars with different bonding lengths were tested. Two types of damage were considered: damage of the steel bar and damage of the mortar. Longitudinal waves were excited by a piezoelectric actuator and a vibrometer was used to non-contact measurements of velocity signals. Numerical calculations...
-
Coalition Shaping the Vaccination Landscape
Publication -
Comparison of the paracetamol electrochemical determination using boron-doped diamond electrode and boron-doped carbon nanowalls
PublicationTwo different type of electrodes, boron-doped diamond electrode (BDD) and boron-doped carbon nanowalls (B:CNW) electrode, were used for the electrochemical determination of paracetamol using the cyclic voltammetry and the differential pulse voltammetry in phosphate buffered saline, pH = 7.0. The main advantage of these electrodes is their utilization without any additional modification of the electrode surface. The peak current...
-
Psychomusicology : a Journal of Research in Music Cognition
Journals -
Journal of Applied Research in Memory and Cognition
Journals -
Cognition, Brain, Behavior. An Interdisciplinary Journal
Journals -
Laterality: Asymmetries of Body, Brain & Cognition
Journals -
Journal of Algorithms-Cognition Informatics and Logic
Journals -
Annual of the Department of Antiquities of Jordan
Journals -
Proceedings of the Royal Society of London
Journals -
Bulletin of the Institute of Archaeology (of London)
Journals -
Jordan Journal of Civil Engineering
Journals -
Jordan Journal of Mathematics and Statistics
Journals -
Jordan Journal of Biological Sciences
Journals -
London Review of International Law
Journals -
London Business School Review
Journals -
Food Science and Technology (London)
Journals -
Transactions of the London Mathematical Society
Journals -
London Journal of Primary Care
Journals -
Jordan Journal of Pharmaceutical Sciences
Journals -
Jordan Journal for History and Archaeology
Journals -
Jordan Journal of Business Administration
Journals