Filtry
wszystkich: 4879
wybranych: 3908
-
Katalog
- Publikacje 3908 wyników po odfiltrowaniu
- Czasopisma 183 wyników po odfiltrowaniu
- Konferencje 7 wyników po odfiltrowaniu
- Osoby 31 wyników po odfiltrowaniu
- Projekty 2 wyników po odfiltrowaniu
- Laboratoria 1 wyników po odfiltrowaniu
- Kursy Online 24 wyników po odfiltrowaniu
- Wydarzenia 1 wyników po odfiltrowaniu
- Dane Badawcze 722 wyników po odfiltrowaniu
Filtry wybranego katalogu
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: ENCLOSURE EXPERIMENT
-
Multidirectional Effects of Tormentil Extract on Hemostasis in Experimental Diabetes
Publikacja -
Crack identification using wavelets on experimental staticdeflection profiles
PublikacjaArtykuł prezentuje metodę lokalizacji uszkodzeń w belce wspornikowej za pomocą transformaty falkowej statycznej linii ugięcia. Efektywnośc proponowanej techniki jest sprawdzona na podstawie badań eksperymentalnych. Do pomiaru statycznej linii ugięcia proponuje się metodę fotogrametryczną.
-
Theoretical and experimental investigation of Optical Coherent Tomography topologies
PublikacjaW artykule przedstawiono teoretyczną i eksperymentalną analizę konfiguracji interferometrów w układach koherentnego tomografu optycznego. Zaprezentowano zrealizowany układ, którego specjalnie zaprojektowana konfiguracja pozawala na analizę zmian polaryzacji sygnału pomiarowego.
-
Experimental measurements of friction forces on the tissue in probabilistic view
PublikacjaNiniejsza praca jest poświęcona wyznaczaniu wartości sił tarcia wywołanych podczas hydrodynamicznego przepływu lepkosprężystej cieczy odżywczej na powierzchniach hodowanych chondrocytów w bioreaktorze. Badania realizuje się w nano skali przy wykorzystaniu mikroskopu sił atomowych. Chondrocyty hodujemy w celu naprawy uszkodzonych chrząstek stawowych kolana człowieka.
-
Some results of experimental research into turbine rotor trajectory
PublikacjaPrzedstawiono rezultaty eksperymentalnych badań trajektorii wirnika turbinowego. Doświadczenia przeprowadzono na modelowej turbinie powietrznej przy różnych częstotliwościach obrotów wału i różnym obciążeniu wału względem osi korpusu.
-
Experimental investigations of R22 flow boiling in enhanced tubes.
PublikacjaPrzedstawiono wyniki badań eksperymentalnych wrzenia R22 podczas wrzenia w przepływie wewnątrz rur o rozwiniętej powierzchni przejmowania ciepła: miedzianej rury niskożebrowanej wewnętrznie, stalowej rury formowanej śrubowo oraz stalowej rury z pokryciem porowatym. Przeprowadzono także badania na dwóch rurach gładkich, o średnicy odpowiadającej maksymalnej średnicy wewnętrznej rur o rozwiniętej powierzchni. Średnie wartości...
-
Experimental measurements of the hydrodynamic characteristics of the pod propulsor models
PublikacjaPraca przedstawia wyniki pomiarów charakterystyk hydrodymicznych trzech wariantów modelu pędnika azymutalnego. Charakterystyki obejmują napór pędnika, siłę boczną i moment względem osi pionowej w zależności od współczynnika posuwu i kąta dryfu.
-
Detection of additional mass in rods: Experimental and numerical investigation
PublikacjaW pracy przedstawiono wyniki badań eksperymentalnych i numerycznych nad wykorzystaniem zmian w propagacji fal sprężystych do detekcji masy skupionej znajdujacej się w konstrukcji prętowej.
-
Experimental tests of steel double-type balcony connections
PublikacjaThe paper presents analysis and results of experimental tests of full scale prefabricated balcony sets with dimensions (width × length × height): 2.0 m × 2.78 m × 0.186 m (in slope to 0.17 m). The sets consists of reinforced concrete slabs (balcony and ceiling) connected with each other by double-type balcony connections. The paper analyses the impact of variable parameters on the load carry capacity of elements. Additionally...
-
Truss models of RC corbels verified by experimental tests
PublikacjaW pracy przedstawiono wybrane modele kartownicowe krótkich wsporników żelbetowych oraz obliczone na podstawie tych modeli nośności graniczne wsporników na tle wyników uzyskanych w badaniach eksperymentalnych. Przedstawiono także weryfikację metody ścinania-tarcia wg wytycznych normy amerykańskiej. Dokonano obliczeń częściowych współczynników bezpieczeństwa, uwzględniających niepewność rozważanych modeli. Stwierdzono, ze modele...
-
On the necessity of experimental verification of numerical results in biomedical applications
PublikacjaPorous structures made of metal or biopolymers with a structure similar in shape and mechanical properties to human bone can be easily produced by stereolitography techniques, e.g. selective laser melting (SLM). Numerical techniques, like finite element method (FEM) have great potential in testing new, even the most sophisticated designs, according to their mechanical properties, i.e. strength or stiffness. However, due to different...
-
Experimental investigation of joint with positive eccentricity in CFS truss
PublikacjaDue to technological restrictions, in the case of trusses made of CFS open cross-sections, positive eccentricities in the truss joints have become very frequent. Therefore studies concerning the load-bearing capacity of truss joints with positive eccentricity were undertaken. It was assumed that the resistance of cold-formed steel (CFS) open cross-section truss joints located on compression chords and with positive eccentricity...
-
Wind Conditions in Urban Layout – Numerical and Experimental Research
PublikacjaThis paper presents research which compares the numerical and the experimental results for different cases of airflow around a few urban layouts. The study is concerned mostly with the analysis of parameters, such as pressure and velocity fields, which are essential in the building industry. Numerical simulations have been performed by the commercial software Fluent, with the use of a few different turbulence models, including...
-
Experimental study on the seepage flow through the ice jam
PublikacjaIn light of the observed climate change, there is a need for better understanding of river ice processes for managing water resources in the cold regions. Ice jams produce significant resistance which may cause rise of water level and flooding. The jam resistance is only referred to the roughness of its underside, and this approach lead to exceptional roughness coefficients which has no physical explanation. Number of evidences...
-
Experimental test of nonclassicality with arbitrarily low detection efficiency
PublikacjaWe theoretically introduce and experimentally demonstrate the realization of a nonclassicality test that allows for arbitrarily low detection efficiency without invoking an extra assumption of independence of the devices. Our test and its implementation is set in a prepare-and-measure scenario with an upper limit on the classical communication capacity of the channel through which the systems are communicated. The essence for our...
-
Experimental and numerical investigations of ultimate strength of degradated structures
PublikacjaThe presented work investigates the corrosion influence on the structural behaviour of structural elements. Nine welded large-scale stiffened plates, and 30 standard small specimens have been subjected to the accelerated marine immersed conditions. After corrosion testing, the specimens have been accurately measured in terms of surface characteristics. The coupon specimens were furtherly subjected to tensile loading to develop...
-
Mechanism of Osmolyte Stabilization–Destabilization of Proteins: Experimental Evidence
PublikacjaIn this work, we investigated the influence of stabilizing (N,N,N-trimethylglycine) and destabilizing (urea) osmolytes on the hydration spheres of biomacromolecules in folded forms (trpzip-1 peptide and hen egg white lysozyme─hewl) and unfolded protein models (glycine─GLY and N-methylglycine─NMG) by means of infrared spectroscopy. GLY and NMG were clearly limited as minimal models for unfolded proteins and should be treated with...
-
Experimental study of the post tensioned prestressed concrete corbels
PublikacjaThe results of experimental investigation of 6 symmetrical double prestressed corbels of variable shear span to depth ratio and variable location of prestressing bars are presented in the paper. The post ten- sioned corbels were prestressed with Macalloy 1030 bars of 25 mm in diameter. The results of the tests were compared with the cracking and load carrying capacity of corbels reinforced with passive reinforce- ment. As a result...
-
Experimental and numerical analysis of wave propagation in ground anchors
PublikacjaThe article focuses on wave propagation phenomenon in ground anchors. The main aim of the investigation is the non-destructive diagnostics and the assessment of the state of ground anchors, using the guided wave propagation method. Laboratory models of anchors with different lengths of the anchor body were tested and voltage signals of propagating waves were registered at several locations. For all tested specimens corresponding...
-
Tendencies in abrasive machining with lapping kinematics - experimental studies
PublikacjaW pracy przedstawiono tendencje rozwoju obróbki ściernej z wykorzystaniem kinematyki docierania. Zaprezentowano wyniki badań szlifowania specjalnymi narzędziami w układzie docierarki jedno- i dwutarczowej.
-
An experimental investigation of the influence of plasticity on creep degradation rate
Publikacja -
Scheduling of identical jobs with bipartite incompatibility graphs on uniform machines. Computational experiments
PublikacjaWe consider the problem of scheduling unit-length jobs on three or four uniform parallel machines to minimize the schedule length or total completion time. We assume that the jobs are subject to some types of mutual exclusion constraints, modeled by a bipartite graph of a bounded degree. The edges of the graph correspond to the pairs of jobs that cannot be processed on the same machine. Although the problem is generally NP-hard,...
-
Photonics applications in astronomy, communications, industry, and high energy physics experiments 2014
Publikacja -
Decision classification criteria for ADT in burn diagnostics based on in-vivo animal experiments
Publikacja -
Simulation and Experiments of High Speed Machining Vibration Monitoring with Variable Spindle Velocity
PublikacjaArtykuł poświęcony jest nadzorowaniu drgań wirujących narzędzi podczas obróbki szybkościowej na nowoczesnych centrach frezarskich. Przeprowadzono analizę dynamiki procesu skrawania smukłym frezem kulistym. W celu zredukowania drgań zastosowano, z powodzeniem, zmienną prędkość obrotową narzędzia. Badania symulacyjne dotyczące efektywności proponowanej metody zostały potwierdzone wynikami badań eksperymentlanych na frezarce Alcera...
-
The Application of Polyethersulfone Ultrafiltration Membranes for Separation of Car Wash Wastewaters: Experiments and Modelling
Publikacja -
Trajectory planning in collision situations at sea by evolutionary computation - experiments with moving targets
Publikacja...
-
The effect of groyne field on trapping macroplastic. Preliminary results from laboratory experiments
PublikacjaMacroplastic, a precursor of microplastic pollution, has become a new scope of research interest. However, the physical processes of macroplastic transport and deposition in rivers are poorly understood, which makes the decisions of where to locate macroplastic trapping infrastructure difficult. In this research, we conducted a series of experiments in a laboratory channel, exploring the impact of groynes and flexible artificial...
-
Experiments and calibration of a bond-slip relation and efficiency factors for textile reinforcement in concrete
PublikacjaTextile reinforcement yarns consist of many filaments, which can slip relative each other. At modelling of the global structural behaviour, interfilament slip in the yarns, and slip between the yarns and the concrete can be considered by efficiency factors for the stiffness and strength of the yarns, and by applying a bond-slip relation between yarns and concrete. In this work, an effective and robust method for calibration of...
-
Experiments and FE analyses on airborne sound properties of composite structural insulated panels
PublikacjaArtykuł przedstawia wyniki doświadczalne i numeryczne odnośnie właściwości akustycznych paneli budowlanych. Jako panele zastosowano płyty kompozytowe konstrukcyjno-izolacyjne CSIP. Obliczenia numeryczne wykonano MES stosując podejście zaproponowane w pakiecie ABAQUS. Wyniki MES porównano bezpośrednio z doświadczeniami. Zaproponowano różne spsoby poprawy właściwości akustycznych paneli.
-
Comparison of stump closure techniques during laparoscopic appendectomies for complicated appendicitis – results from Pol-LA (Polish laparoscopic appendectomy) multicenter large cohort study
Publikacja -
Wave Method for Structural Health Monitoring: Testing Using Full-Scale Shake Table Experiment Data
PublikacjaAn algorithm of the wave method for structural health monitoring (SHM) is tested and calibrated using shake table experiment data of a full-scale, seven-story, reinforced-concrete building slice. The method is based on monitoring changes in the velocity of waves propagating vertically through the structure, identified by least-squares (LSQ) fit of beam models. The experiment was conducted by a team from the University of California,...
-
Electrochemical oscillations and bistability during anodic dissolution of vanadium electrode in acidic media—part I. Experiment
Publikacja -
<title>Structure and state visualization system for BAC detector electronics in ZEUS experiment of HERA accelerator</title>
Publikacja -
<title>Data quality management system (DQMS) for BAC detector in the ZEUS experiment at the HERA accelerator</title>
Publikacja -
MARSTRUCT benchmark study on nonlinear FE simulation of an experiment of an indenter impact with a ship side-shell structure
PublikacjaThis paper presents a benchmark study on collision simulations that was initiated by the MARSTRUCT Virtual Institute. The objective was to compare assumptions, finite element models, modelling techniques and experiences between established researchers within the field. Fifteen research groups world-wide participated in the study. An experiment involving a rigid indenter penetrating a ship-like side structure was used as the case...
-
Implementation of multicriteria decision analysis in design of experiment for dispersive liquid-liquid microextraction optimization for chlorophenols determination
PublikacjaA novel and efficient approach to optimization of extraction step prior the chromatographic determination of nine chlorinated phenols is described. It is based on the combination of design of experiments and multicriteria decision analysis. Such an approach is used to optimize dispersive liquid-liquid microextraction procedure for the determination of 9 chlorophenols in water samples. Three parameters are optimized – sample volume,...
-
Effect of Natural Aging of Biochar on Soil Enzymatic Activity and Physicochemical Properties in Long-Term Field Experiment
Publikacja -
Mechanical response of 6061-T6 aluminium alloy subjected to dynamic testing at low temperature: Experiment and modelling
Publikacja -
Evaluation of the scale-consistent UNRES force field in template-free prediction of protein structures in the CASP13 experiment
Publikacja -
Electrochemical oscillations and bistability during anodic dissolution of vanadium elektrode in acidic media. part 1. Experiment
PublikacjaDynamiczne niestabilności, oscylacje prądowe i bistabilność obserwowane były podczas anodowego roztwarzania elektrody wanadowej w trakcie badań wykorzystujących techniki stało i zmienno prądowe. Analizowany był wpływ warunków eksperymentalnych jak: stężenia kwasu, temperatury itd. Badania pozwoliły stworzyć diagramy przedstawiające regiony występowania oscylacji i bistabilności.
-
Theory versus experiment for vacuum Rabi oscillations in lossy cavities. II. Direct test of uniqueness of vacuum
PublikacjaThe paper continues the analysis of vacuum Rabi oscillations we started in part I [Phys. Rev. A 79, 033836 (2009)]. Here we concentrate on experimental consequences for cavity QED of two different classes of representations of harmonic-oscillator Lie algebras. The zero-temperature master equation, derived in part I for irreducible representations of the algebra, is reformulated in a reducible representation that models electromagnetic...
-
Preliminary results from HEDGEHOG REXUS Project - sounding rocket experiment on accelerations, vibrations and heat flow
PublikacjaAs access to space conditions becomes more available, both technically and economically, scientists' interest in launching finer and more sophisticated experiments grows. This applies now more than ever to fragile by nature biological and chemical experiments. To be qualified for launch, such experiments need to be carefully tested prior to the event. The tests should represent actual launch conditions as closely and in as detailed...
-
Preliminary results from HEDGEHOG REXUS project – A sounding rocket experiment on accelerations, vibrations and heat flow
PublikacjaDuring flight, a sounding rocket is subject to a unique environment - severe vibrations and substantial heat flux. In order to design payloads, precise measurement of these conditions is required. This paper presents preliminary results from HEDGEHOG REXUS Project, whose scientific goal was to characterise the thermal and dynamic environment of REXUS sounding rockets. For this purpose, two new sensors have been designed - mechanical...
-
Experiment-aided virtual prototyping to minimize tool-workpiece vibration during boring of large-sized structures
PublikacjaThe paper presents the author's method of solving the problems of vi-bration suppression during boring of large-sized workpieces by means of an in-novative method of adjusting the rotational speed of the boring bar. It consists in selecting the spindle speed in accordance with the results of the cutting process simulation. The method includes identification of the model of the finite element method of the boring bar. The Root Mean...
-
Generalization of Phylogenetic Matching Metrics with Experimental Tests of Practical Advantages
PublikacjaThe ability to quantify a dissimilarity of different phylogenetic trees is required in various types of phylogenetic studies, for example, such metrics are used to assess the quality of phylogeny construction methods and to define optimization criteria in supertree building algorithms. In this article, starting from the already described concept of matching metrics, we define three new metrics for rooted phylogenetic trees. One...
-
Experimental study on the effectiveness of polymer dampers in reduction of structural vibrations
PublikacjaVibrations of civil engineering structures, generated by dynamic loads, may be very dangerous to the structures themselves as well as may have significant influence on human perception and comfort. A number of different methods have been proposed in order to minimize such situations. This concern newly designed structures as well as those which dynamic properties have to be modified due to problems with excessive vibrations. One...
-
PROBLEMS OF EXPERIMENTAL DETERMINATION OF COEFFICIENTS OF THE WEAR OF SHIP PIPING SYSTEMS
PublikacjaThe article presents series of considerations relating to experimental evaluation of the reliability of ship piping systems. The aim of this study is to attempt to answer the following questions: What should be the tested element? How to choose the diameter of the tested item? What should be the result of measurements and calculations? How to measure? How to choose the duration of the test? How to choose the sample size and elaborate...
-
Experimental and numerical analysis of an aluminum cantilevered beam with polymer adhesive
PublikacjaIn this paper, experimental and numerical investigation on a composite cantilevered aluminum beam has been conducted. The subject of the study consists of two plain aluminum elements bonded with polymer adhesive of different thickness. It has been proven in the previous study that this kind of material has high damping properties. During an experimental investigation, value of damping ratios have been obtained. The aim of a numerical...
-
Harmonics produced by traction substations – computer modelling and experimental verification
PublikacjaVoltage and current harmonics have a detrimental effect on the components of a power system. Current harmonics may result in the overload and damage to power transformers. Voltage harmonics may result in, for example, damage to capacitor banks used to compensate reactive power. Devices which contribute to both current and voltage distortion include traction rectifiers. This paper presents results of the computer investigation of...