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Search results for: non-anechoic measurements
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Minimizing the number of periodic points for smooth maps. Non-simply connected case
PublicationNiech f będzie gładkim odwzorowaniem zamkniętej rozmaitości o wymiarze wiekszym niż 2, a r ustaloną liczbą naturalną. W artykule zdefiniowany został niezmiennik topologiczny równy minimalnej liczbie punktów r-periodycznych w gładkiej klasie homotopii f.
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Model tests and stability calculations of shallow foundations resting on non-cohesive subsoil
PublicationPrzedstawiono metodykę i charakterystyczne wyniki własnych badań modelowych przeprowadzonych z wykorzystaniem techniki PIV. W analizach numerycznych przeanalizowano trzy kryteria wytrzymałości gruntu na ścinanie i ich wpływ na wyniki ilościowe i jakościowe. Obliczenia analityczne oparto na koncepcji ESE. Zestawiono i przeanalizowano zgodność wyników badań modelowych, analiz numerycznych i obliczeń analitycznych.
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The state of the art in the field of non-stationary instruments for the determination and monitoring of atmospheric pollutants
PublicationW artykule przedstawiono informacje oparte zarówno na danych literaturowych jak i własnych doświadczeniach dotyczące:-podstawowych tendencji rozwojowych w zakresie analityki i monitoringu zaneczyszczeń powietrza atmosferycznego-wymogów metrologicznych stawianych różnych typom urządzeń kontrolno-pomiarowych;-klasyfikacji analizatorów i monitorów wykorzystywanych w monitoringu powietrza.
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Sweet Cherry Skin Colour Measurement as an Non-Destructive Indicator of Fruit Maturity
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On the Effect of Non-Thermal Atmospheric Pressure Plasma Treatment on the Properties of PET Film
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Urinary Proteome of Newborn Calves—New Potential in Non-Invasive Neonatal Diagnostic
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Comparative model tests of SDP and CFA pile groups in non-cohesive soil
PublicationThe research topic relates to the subject of deep foundations supported on continuous flight auger (CFA) piles and screw displacement piles (SDP). The authors have decided to conduct model tests of foundations supported on the group of piles mentioned above and also the tests of the same piles working alone. The tests are ongoing in Geotechnical Laboratory of Gdańsk University of Technology. The description of test procedure, interpretation...
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Influence of laser remelting at cryogenic conditions on corrosion resistance of non-ferrous alloys
PublicationCelem nadtapiania laserowego elementów wytwarzanych z stopów aluminium, miedzi i tytanu jest uzyskanie wysokiej twadrości i odporności na korozję dla wydłużenia okresu ich eksploatacji w rezultacie ich szybkiej krystalizacji. Końcowa mikrostruktura, skład fazowy i właściwości wymienionych stopów zależą od parametrów obróbki laserowej oraz budowy wykresów równowagi fazowej. W artykule przedstawiono wpływ laserowego nadtapiania...
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Pounding-involved response of isolated and non-isolated buildings under earthquake excitation
PublicationCelem artykułu jest dokładna analiza zachowania się kolidujących ze sobą dwóch budynków z wibroizolacją i bez wibroizolacji poddanych obciążeniom dynamicznym podczas trzęsień ziemi. W analizie rozważno przypadki kiedy oba budynki mają wibroizolację, kiedy tylko jeden budynek ma wibroizolację oraz kiedy żaden z budynków nie ma wibroizolacji. Wyniki badań pokazują, iż budynki z wibroizolacją są bardziej podatne na zderzenia podczas...
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THE TIMING OF INITIAL PUBLIC OFFERINGS – NON-NUMERICAL MODEL BASED ON QUALITATIVE TRENDS
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Phthalocyanines with bulky substituents at non-peripheral positions – Synthesis and physico-chemical properties
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Non-Contact Monitoring of ECG in the Home Environment—Selecting Optimal Electrode Configuration
PublicationCapacitive electrocardiography (cECG) is most often used in wearable or embedded measurement systems. The latter is considered in the paper. An optimal electrocardiographic lead, as an individual feature, was determined based on model studies. It was defined as the possibly highest value of the R-wave amplitude measured on the back of the examined person. The lead configuration was also analyzed in terms of minimizing its susceptibility...
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The literature review on boundary conditions of use for non-residential buildings. Educational buildings.
PublicationThis paper describes the results of qualitative and quantitative literature reviews on boundary conditions within educational buildings, emphasising the users' perspective. The studies were performed before and during the COVID-19 pandemic using Scopus, Taylor& Francis, and Web of Science databases. The boundary conditions are understood as special characteristics for use and or precondition, determining specific features of...
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VALUATION OF EMBEDDED OPTIONS IN NON-MARKETABLE CALLABLE BONDS: A NEW NUMERICAL APPROACH
PublicationThe issue of how to price options embedded in callable bonds has attracted a lot of interest over the years. The usual bond valuation methods rely on yield curves, risk premium, and other parameters to estimate interest rates used in discounted cash flow calculations. The option to retire the bond is, however, neglected in the standard pricing models, causing a systematic overvaluation of callable bonds. In the event of a decline...
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Comparisson between impulsive and periodic non-newtonian lubrication of human hip joint
PublicationOpis smarowania powierzchni sferycznych stawu biodrowego człowieka przedstawiono w aspektach hydromechaniki, przy pomocy równań zachowania pędu i ciągłości strugi dla osiowo niesymetrycznego przepływu cieczy lepkosprężystej z wykorzystaniem związków konstytutywnych Rivlina Ericksena we współrzędnych sferycznych.
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Modelling of strain localization in quasi-brittle materials with non-local continuum models
PublicationW artykule przedstawiono wyniki numerycznej lokalizacji odkształceń w elementach betonowych przy zastosowaniu modelu sprężysto-plastycznego i modelu z degradacja sztywności. Do opisu rys, model rozszerzono o składniki nielokalne. Obliczenia wykonano dla prostych problemów brzegowych
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Modelling of size effects in concrete using elasto-plascity with non-local softening
PublicationArtykuł przedstawia numeryczne symulacje MES efektów skali w materiałach kruchych takich jak beton , wykonane w warunkach płaskiego stanu odkształceń. Materiał był modelowany w ramach sprężysto-plastyczności z izotropowym wzmocnieniem i osłabieniem. W obszarze ściskania przyjęto liniowe kryterium Druckera-Pragera z niestowarzyszonym prawem płynięcia a w obszarze rozciągania liniowe kryterium Rankina ze stowarzyszonym prawem płynięcia....
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A non local hypoplastic constitutive law to describe shear localization in granular bodies.
PublicationPrzedstawiono wyniki numerycznej analizy formacji stref ścinania w materiale granulowanym podczas ściskania. Zachowanie suchego piasku podczas testów ściskania w płaskim stanie odkształcenia było analizowane z zastosowaniem metody elementów skończonych i nielokalnego hipoplastycznego prawa konstytutywnego. Podczas obliczeń numerycznych zwrócono szczególną uwagę na wpływ długości charakterystycznej na nośność i szerokość...
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Designing a high-sensitivity dual-band nano-biosensor based on petahertz MTMs to provide a perfect absorber for early-stage non-melanoma skin cancer diagnostic
PublicationThe purpose of this study is development of a novel high-performance low-Petahertz (PHz) biosensor for non-melanoma skin cancer (NMSC) diagnosis. The presented device is designed to work within a microwave imaging regime, which is a promising alternative to conventional diagnostic methods such as visual examination, dermoscopy, and biopsy. The suggested biosensor incorporates a dual-band perfect absorber (operating bands at 0.909...
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Electrochemical impedance spectroscopy measurements - conductivity vs. temperature and conductivity vs. oxygen partial pressure - BaCe0.6Zr0.2Y0.1Tb0.1O3-δ
Open Research DataThe dataset consists of two main catalogs consisting of measurement data: of the electrical conductivity of the BaCe0.6Zr0.2Y0.1Tb0.1O3-δ (BCZYTb) sample as a function of temperature and of the electrical conductivity as a function of oxygen partial pressure (pO2). Measurements as a function of temperature were carried out in dry and wet air (pH2O ~...
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Measurements of the rms currents in two phases in a ship power station with two generators operating in parallel
Open Research DataThe presented dataset is part of research focusing on the assessment of metrological properties of the instrument, Estimator/Analyzer (E/A v.2), developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing the rms...
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Measurements of the rms voltages on main bars in a ship power station with two generators operating in parallel
Open Research DataThe presented dataset is part of research focusing on the assessment of metrological properties of the instrument, Estimator/Analyzer (E/A v.2), developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing the rms...
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What should we know when choosing feather, blood, egg or preen oil as biological samples for contaminants detection? A non-lethal approach to bird sampling for PCBs, OCPs, PBDEs and PFASs
PublicationBirds are considered as good bio-monitors and they can provide highly valuable data about the level of contamination in their habitat. During the design of biomonitoring studies one of the first issues after choosing species is the choice of biological material. Non-lethally collected samples have recently been gaining greater attention as they offer several ethical and practical advantages. However, not all sample matrices are...
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Material characterisation of biaxial glass-fibre non-crimp fabrics as a function of ply orientation, stitch pattern, stitch length and stitch tension
PublicationDue to their high density-specific stiffnesses and strength, fibre reinforced plastic (FRP) composites are particularly interesting for mobility and transport applications. Warp-knitted non-crimp fabrics (NCF) are one possible way to produce such FRP composites. They are advantageous because of their low production costs and the ability to tailor the properties of the textile to the reinforcement and drape requirements of the application....
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Measurements of the coefficients of current distribution between two generators operating in parallel in a ship power station
Open Research DataThe presented dataset is part of research focusing on the assessment of metrological properties of the instrument, Estimator/Analyzer (E/A v.2), developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing the coefficients...
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Measurements of drive system properties of the "Magnetic SpeedLine" ultra-fast robot prototype for IML labeling
Open Research DataTests of the drive system of the ultra-fast robot "SpeedLine magnetic" for labeling with the IML method were carried out in order to analyze the influence of the operating parameters of the drive system on the correctness and quality of the drive system.
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The fixed state in impedance measurements of a two-step electrode reaction proceeding with accompanying adsorption of an intermediate product
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Solubility of sulfanilamide in binary solvents containing water: Measurements and prediction using Buchowski-Ksiazczak solubility model
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Measurements of OF QoS/QoE parameters for media streaming in a PMIPv6 TESTBED WITH 802.11 b/g/n WLANs
PublicationA growing number of mobile devices and the increasing popularity of multimedia services result in a new challenge of providing mobility in access networks. The paper describes experimental research on media (audio and video) streaming in a mobile IEEE 802.11 b/g/n environment realizing network-based mobility. It is an approach to mobility that requires little or no modification of the mobile terminal. Assessment of relevant parameters...
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Assessment of fatigue life of aluminized, coarse-grained MAR247 alloy supported by full-field ESPI measurements
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Increasing Energy Efficiency and Productivity of the Comminution Process in Tumbling Mills by Indirect Measurements of Internal Dynamics—An Overview
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Folding kinetics of WW domains with the united residue force field for bridging microscopic motions and experimental measurements
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Suppression of the High-Frequency Errors in Surface Topography Measurements Based on Comparison of Various Spline Filtering Methods
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Investigation of DPPC effect on SiO2 particles and in the presence of phospho(lipases) by zeta potential and effective diameter measurements
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Investigations of DPPC effect on Al2O3 particles in the presence of (phospho)lipases by the zeta potential and effective diameter measurements
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Measurements of Spectral Spatial Distribution of Scattering Materials for Rear Projection Screens used in Virtual Reality Systems
PublicationRapid development of computing and visualisation systems has resulted in an unprecedented capability to display, in real time, realistic computer-generated worlds. Advanced techniques, including three-dimensional (3D) projection, supplemented by multi-channel surround sound, create immersive environments whose applications range from entertainment to military to scientific. One of the most advanced virtual reality systems are CAVE-type...
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A novel sandwich footbridge - Practical application of laminated composites in bridge design and in situ measurements of static response
PublicationA novel sandwich composite footbridge is presented in the paper, as an example of practical application of laminated composites in civil engineering. The in situ static load tests of the footbridge before its acceptation for exploitation are shown and discussed. The results are compared with the corresponding ones from a numerical equivalent single layer model of the sandwich structure created within the framework of finite element...
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Towards Designing an Innovative Industrial Fan: Developing Regression and Neural Models Based on Remote Mass Measurements
PublicationThis article presents the process of the construction and testing a remote, fully autonomous system for measuring the operational parameters of fans. The measurement results obtained made it possible to create and verify mathematical models using linear regression and neural networks. The process was implemented as part of the first stage of an innovative project. The article presents detailed steps of constructing a system to...
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045406631]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045404301]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045401001]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045409611]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045401421]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045407111]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045403771]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Composite Hodgkin and non-Hodgkin lymphoma - Male, 65 - Tissue image [10100730045403501]
Open Research DataThis is the histopathological image of HEMATOPOIETIC AND RETICULOENDOTHELIAL SYSTEMS tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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XRD, DTA and luminescence measurements of B2O3-Bi2O3-AlF3 glasses doped with Eu3+, Tb3+ and Tm3+ ions
Open Research DataThe DataSet contains the XRD,DTA and luminescence measurements for the B2O3-Bi2O3-AlF3 glass system. Samples were prepared by the conventional melt quenching technique. Starting materials were melted in porcelain crucibles at 950 oC for 20 min. XRD and DTA data were collected for 50B2O3-50Bi2O3,45B2O3-45Bi2O3+10AlF3 and 40B2O3-40Bi2O3+20AlF3 glasses....
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Measurement file of PEEK 70 mm bushing measurements in original condition perforemed on custom-built 3d measuring stand
Open Research DataAfter manufacturing process (lathe turning) bearing was measured on custom bulit measurement stan developed during research project financed by National Centre of Science. Measurements consist of 110 000 points in 3D space taken on bushing inner surface. Bearing was measured taking vertical steps of 0,2 mm.
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Prophylaxis of Non-communicable Diseases: Why Fruits and Vegetables may be Better Chemopreventive Agents than Dietary Supplements Based on Isolated Phytochemicals?
PublicationThe World Health Organization (WHO) report from 2014 documented that non-communicable socalled civilization diseases such as cardiovascular disease, chronic respiratory diseases, cancer or type 2 diabetes are responsible for over 50% of all premature deaths in the world. Research carried out over the past 20 years has provided data suggesting that diet is an essential factor influencing the risk of development of these diseases....
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Corporate Governance and Ownership Structure in the Top 30 Listed Non Financial Companies in Poland
PublicationThis paper offers a first analysis of the relationships between corporate governance models and rules and ownership structure of the top 30 Polish firms listed at the WSE (not considering foreign firms and/or the Polish branches of foreign firms listed at the same stock exchange, nor the financial companies and the banks). The general picture depicted by this analysis is putting into evidence the increasing importance of institutional...