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Search results for: 2d/3d surface texture
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Flow models 1D, 2D, 3D for diagonal pump
PublicationTrzy typowe modele stosowane w maszynach wirnikowych 1D, 2D, 3D zostały przedstawione w zastosowaniu do przepływu w pompie diagonalnej. W ramach modelu 1D przedstawiono prezentację procesu na wykresie energia -straty. W ramach modelu 2D pokazano wynik rozwiązania zadania odwrotnego prowadzącego do kształtu łopatek wirnika pompy. W ramach modelu 3D wykonano obliczenia programem FLUENT pokazując charakterystyczne cechy dwóch różnie...
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Texture Based Quality Assessment of 3D Prints for Different Lighting Conditions
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Representative volume element in 2D for disks and in 3D for balls
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Comparison of 2D and 3D culture models in the studies of the biological response induced by unsymmetrical bisacridines in cancer cells
PublicationMulticellular tumor spheroids are a good tool for testing new anticancer drugs, including those that may target cancer stem cells (CSCs), responsible for cancer progression, metastasis, and recurrence. Therefore, following the initial evaluation of the impact of antitumor unsymmetrical bisacridines (UAs) on lung and colon cancer cells using traditional monolayer cultures, I extended my investigations and applied the spherical model....
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Quantification of Asphalt Mixture Interlocking Utilizing 2D and 3D Image Processing
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Porównanie tradycyjnych i komputerowych metod animacji 2D i 3D.
PublicationArtykuł opisuje najważniejsze zagadnienia związane z animacją tworzoną zarówno w sposób tradycyjny, jak i z zastosowaniem technik komputerowych oraz związki między tymi sposobami generowania ruchu.
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Reguły animacji tradycyjnej w komputerowych systemach animacji 2D i 3D
PublicationWykorzystywane obecnie reguły animacji sformułowane zostały ponad 70 lat temu. Artykuł zawiera ich opis i klasyfikację oraz sposoby zastosowania w technice komputerowej. Zaproponowano zestaw testów subiektywnych dotyczących oceny realizmu animacji stworzonych z wykorzystaniem reguł.
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Analiza porównawcza 2D i 3D klasycznego i bezstykowego elektrycznego ogrzewania rozjazdów kolejowych
PublicationElektryczne ogrzewanie rozjazdów jest istotnym problemem technicznym i ekonomicznym. Z tych względów istnieje potrzeba prowadzenia badań w celu optymalizacji systemu ogrzewania rozjazdów kolejowych. W niniejszym artykule przedstawiono wyniki analizy numerycznej układów ogrzewania rozjazdów kolejowych metodą klasyczną oraz z zastosowaniem grzejników odizolowanych termicznie od stopki szyny. Przeprowadzono analizę 2D i 3D rozpatrywanych...
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Portable parallel simulator using MPI for 2D and 3D domains: design and performance testing
PublicationW artykule prezentujemy szczegóły projektowo-implementacyjne naszego modularnego kodu symulacyjnego z wykorzystaniem MPI, w tym nakładaniem obliczeń i komunikacji. Podkreślamy modularność naszej implementacji pozwalającą na łatwą adaptację kodu dla innych zasotosowań. Prezentujemy związek pomiędzy przyspieszeniem obliczeń, rozmiarem i kształtami trójwymiarowych domen z różnymi stosunkami liczby węzłów aktualizowanych przez procesor...
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Effect of steel fibres on concrete behavior in 2D and 3D simulations using lattice model.
PublicationW artykule przedstawiono wyniki numerycznej symulacji betonu zbrojonego włóknami stalowymi. Beton został opisany w skali mezo jako materiał 3-fazowy przy zastosowaniu modelu sieciowego. Obliczenia wykonano dla rozciągania jednoosiowego. Porównano ze sobą wyniki dwu- i trójwymiarowe.
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Modeling the photodynamic effect in 2D versus 3D cell culture under normoxic and hypoxic conditions
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Electrochemical performance of MOF-5 derived carbon nanocomposites with 1D, 2D and 3D carbon structures
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Przegląd programów 2D oraz 3D do fotogrametrii na przykładzie PC- Rect oraz PhotoModeler
PublicationW pracy został podjęty temat przeglądu programów do fotogrametrii. Stwierdzono, że lawinowy rozwój informatyki sprawił, że eksperci zajmujący się zawodowo tematem zdarzeń drogowych pozyskali dostęp do specjalistycznego oprogramowania wspomagającego rekonstrukcję wypadków komunikacyjnych. Różnorodność problematyki rekonstruowania zdarzeń drogowych narzuciła konieczność stworzenia eksperckiego oprogramowania specjalnej grupy aplikacji....
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Foraging habitats and niche partitioning of European large herbivores during the Holocene – Insights from 3D dental microwear texture analysis
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The effect of numerical 2D and 3D FEM element modelling on strain and stress distributions at laser weld notches in steel sandwich type panels
PublicationLike other means of transport, merchant ships face the problem of increasing requirements concerning the environment protection, which, among other issues, implies the reduction of fuel consumption by the ship. Here, the conventional approach which consists in making use of higher strength steels to decrease the mass of the ship hull can be complemented by the use of new steel structures of sandwich panel type. However, the lack...
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The Role of Functionalization and Size of Gold Nanoparticles in the Response of MCF-7 Breast Cancer Cells to Ionizing Radiation Comparing 2D and 3D In Vitro Models
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Comparative study of high‑pressure fluid flow in densely packed granules using a 3D CFD model in a continuous medium and a simplified 2D DEM‑CFD approach. Granular Matter
PublicationIzotermiczny ściśliwy jednofazowy przepływ cieczy przez niejednorodną masę ziarnistą składającą się z gęsto upakowanych zachodzących na siebie kul imitujących skałę pod wysokim ciśnieniem zbadano numerycznie przy użyciu dwóch różnych podejść. Pierwsze podejście zwane pełnym modelem 3D CFD stosowało metodę skończonych objętości (FVM) do rozwiązania uśrednionego równania Naviera-Stokesa zakładając model naprężeń Reynoldsa (BSL) w...
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Surface Texture after Turning for Various Workpiece Rigidities
PublicationIn the paper, we present an analysis of the surface texture of turned parts with L/D (length/diameter) ratios of 6 and 12 and various rigidity values. The studies were carried out on samples made of S355JR steel and AISI 304 stainless steel. A detailed analysis of 2D surface profiles was carried out by using a large number of parameters that allowed us to distinguish significant differences in the surface microgeometry, which confirmed...
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Simulations of high-pressure fluid flow in a pre-cracked rock specimen composed of densely packed bonded spheres using a 3D CFD model and simplified 2D coupled CFD-DEM approach
PublicationW artykule zastosowano dwa różne podejścia do opisu jednofazowego przepływu płynu w wstępnie spękanej próbce skały o niskiej porowatości pod wysokim ciśnieniem. Głównym celem pracy było bezpośrednie porównanie rozkładu ciśnień, gęstości i prędkości płynów we wstępnie pękniętej próbce. Zachowanie próbki imitującej skałę zostało opisane przez gęsto upakowane połączone kohezją kulki z nakładającymi się na siebie elementami. Pierwsze...
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AFM investigation of electrode fabricated by 3D printing
Open Research Data3D printing, also known as additive manufacturing, has enjoyed great interest in recent years due to the versatility of this method of producing various shapes and details. Due to the possibility of precise control of the shape and composition of the printed elements, the discussed technique can be widely used in electrochemistry, including electrochemical...
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Zeiss calibration dataset for high-precision 3D measurement of large industrial components
Open Research DataThe dataset is a collection of images, 2D image points, and 3D points. It serves to calibrate a multi-camera robot system for high-precision measurements of large industrial components (more than 1m x 1m). In particular, the system uses a 3D scanner mounted on a robot manipulator and multiple cameras attached to an external frame outside of the robot...
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CERVIX UTERI, Exocervix - Female, 28 - Cell image [5170730007439021]
Open Research DataThis is the histopathological image of CERVIX UTERI cell 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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WRF forecasting data of severe weather event in Central Europe on 11 August 2017
Open Research DataThis dataset is related to the forecasting of weather conditions in Central Europe on 11 August 2017. During that day, the severe and devastating weather phenomenon (derecho) occurred in Poland. The simulations were carried out using the Weather Research and Forecasting (WRF) model version 4.2.1 with the initial and boundary conditions from the Global...
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Surface texture of pine wood beams after planing in industrial conditions
PublicationMeasuring the surface features of wooden components after planing is connected with the rising demands regarding to the quality of the painted window frames. In the paper the complex surface texture analysis especially identifying of surface damages using non-contact 3D measurement techniques for precise area measurement were presented.This enabled the study of irregular surface features with sufficient fidelity and resolution....
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Simulation of the derecho event in Poland of 11th August 2017 using the WRF model and ERA5 data on pressure levels as initial conditions
Open Research DataThis series contains datasets related to the forecasting of a severe weather event, a derecho, in Poland on 11 August 2017. The simulations were conducted using the Weather Research and Forecasting (WRF) model version 4.2.1 with initial and boundary conditions from ERA5 on pressure levels. Simulation was performed for two starting hours: at 00:00 and...
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Simulation of the derecho event in Poland of 11th August 2017 using the WRF model and GFS data as initial conditions
Open Research DataThis series contains datasets related to the forecasting of a severe weather event, a derecho, in Poland on 11 August 2017. The simulations were conducted using the Weather Research and Forecasting (WRF) model version 4.2.1 with initial and boundary conditions from Global Forecast System (GFS). Simulation was performed for two starting hours: at 00:00...
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Simulation of the derecho event in Poland of 11th August 2017 using the WRF model and GDAS data as initial conditions
Open Research DataThis series contains datasets related to the forecasting of a severe weather event, a derecho, in Poland on 11 August 2017. The simulations were conducted using the Weather Research and Forecasting (WRF) model version 4.2.1 with initial and boundary conditions from Global Data Assimilation System (GDAS). Simulation was performed for two starting hours:...
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Simulation of the derecho event in Poland of 11th August 2017 using the WRF model and ECMWF data as initial conditions
Open Research DataThis series contains datasets related to the forecasting of a severe weather event, a derecho, in Poland on 11 August 2017. The simulations were conducted using the Weather Research and Forecasting (WRF) model version 4.2.1 with initial and boundary conditions from European Centre for Medium-Range Weather Forecasts (ECMWF). Simulation was performed...
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Simulation of the derecho event in Poland of 11th August 2017 using the WRF model and ERA5 data on model levels as initial conditions
Open Research DataThis series contains datasets related to the forecasting of a severe weather event, a derecho, in Poland on 11 August 2017. The simulations were conducted using the Weather Research and Forecasting (WRF) model version 4.2.1 with initial and boundary conditions from ERA5 on model levels. Simulation was performed for two starting hours: at 00:00 and 12:00...
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Experimental investigation into surface texture effect on journal bearings performance
PublicationThe aim of this study was to analyse the performance of journal bearings with specially created dimples on the sliding surface and operating under various conditions. The texture was created on the bearing surface that co-acted with the smooth journal; moreover, the variation of the textured surface of the journal mating with the smooth bearing was tested, and the results were compared to those obtained with the standard smooth...
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Method of Forming Road Surface Replicas Using 3D Printing Technology
PublicationRolling resistance is a critical factor that influences vehicle energy consumption, emissions, and overall performance. It directly impacts fuel efficiency, tire longevity, and driving dynamics. Traditional rolling resistance tests are conducted on smooth steel drums, which fail to replicate real-world road surface textures, potentially skewing results. This article presents the process of designing surface replicas using 3D printing...
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Reduction of the end-effect in surface texture analysis
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The Effect of Spikes Occurrence on Surface Texture Parameter Assessments
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Impact of the surface evenness and texture on tire/road rolling resistance
PublicationThis paper deals with the issue of a surface's roughness and texture impact on tire/road rolling resistance. It includes a brief description of research aims, measurements and an analysis of results. It also presents observations and conclusions regarding drum facility modernisation which allows studies concerning surface's roughness and texture impact on tire/road rolling resistance.
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SURFACE TEXTURE ANALYSIS AFTER BALL END MILLING WITH VARIOUS SURFACE INCLINATION OF HARDENED STEEL
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Evaluation of Body Surface Area Formulae Based on 3D Body Scans
PublicationHuman body surface area (BSA) is an established parameter for the calculation of chemotherapy drugs dosage, treatment of chronic hepatitis B, treatment of burns or for establishing a dosing regimen for antimicrobials. Although being a critical parameter, usage of modern 3D scanners, which would measure the exact BSA value, is often impossible in time-sensitive operations or for patients unable to withstand the scanning process....
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Surface Texture Analysis of Hardened Shafts after Ceramic Ball Burnishing
PublicationThis article represents the results of testing the surface condition of shafts manufactured by the burnishing process. The shafts with a hardness of approximately 62 HRC (Rockwell C). were burnished with a ceramic ball (Si3N4), where the force range was controlled by the means of a hydraulic system. The machining process consisted of hard turning shafts with cubic boron nitride (CBN) inserts, followed by burnishing with the use...
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Surface texture formation in precision machining of direct laser deposited tungsten carbide
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Surface texture generation during cylindrical milling in the aspect of cutting force variations
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Application of 3D Whole Body Scanning in Research on Human Body Surface Area
PublicationHuman body surface area (BSA) is one of the major parameters used in several medical fields. Its heterogeneity caused by individual human characteristics sustains a many-decades-long research on the matter. Today’s technology allows to create exact body models in mere seconds. However, an extensive research that includes scanning people with major disfigurements or people suffering from diseases, which often prevent their mobility,...
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Processing of LiDAR and Multibeam Sonar Point Cloud Data for 3D Surface and Object Shape Reconstruction
PublicationUnorganised point cloud dataset, as a transitional data model in several applications, usually contains a considerable amount of undesirable irregularities, such as strong variability of local point density, missing data, overlapping points and noise caused by scattering characteristics of the environment. For these reasons, further processing of such data, e.g. for construction of higher order geometric models of the topography...
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Proposal of frequency‐based decomposition approach for minimization of errors in surface texture parameter calculation
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Comparisons of envelope morphological filtering methods and various regular algorithms for surface texture analysis
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Methods for quality improvement of multibeam and LiDAR point cloud data in the context of 3D surface reconstruction
PublicationPoint cloud dataset is the transitional data model used in several marine and land remote-sensing applications. During further steps of processing, the transformation of point cloud spatial data to more complex models containing higher order geometric structures like edges and facets may be possible, if an appropriate quality level of input data is provided. Point cloud datasets usually contain a considerable amount of undesirable...
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Entropy Based Surface Quality Assessment of 3D Prints
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3D Metamaterial Ultra-Wideband Absorber for curved surface
PublicationThis paper proposes a three-dimensional metamaterial absorber based on a resistive film patch array to develop a low-cost, lightweight absorber for curved surfaces. An excellent absorption over a large frequency band is achieved through two different yet controllable mechanisms; In the first mechanism, a considerable attenuation in the wave power is achieved via graphite resistive films. The absorption is then intensified through...
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Selection of Methods of Surface Texture Characterisation for Reduction of the Frequency-Based Errors in the Measurement and Data Analysis Processes
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An improvement of body surface area formulas using the 3D scanning technique
PublicationObjectives: Body surface area (BSA) is one of the major parameters used in several medical fields. However, there are concerns raised about its usefulness, mostly due to the ambiguity of its estimation. Material and Methods: Authors have conducted a voluntary study to investigate BSA distribution and estimation in a group of 179 adult people of various sex, age, and physique. Here, there is provided an extended analysis of the...
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Objective 3D Printed Surface Quality Assessment Based on Entropy of Depth Maps
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Improved Procedures for Feature-Based Suppression of Surface Texture High-Frequency Measurement Errors in the Wear Analysis of Cylinder Liner Topographies
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