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Influence of Glycols on the Glycolysis Process and the Structure and Properties of Polyurethane Elastomers
PublicationW pracy omówiono wyniki badań elastomerów wytworzonych z glikolizatów poddanych dezaminacji. Glikolizaty otrzymywano w procesie transestryfikacji polieterouretanów glikolami: propano-1,3-diolem, pentano-1,5-diolem oraz heksano-1,6-diolem. Procesy prowadzono przy trzech stosunkach masowych pianki:glikolu.
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Process Control Challenges and Solutions: TEOS, W, and CU CMP
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Diffusible Hydrogen Control in Flux Cored Arc Welding Process
PublicationOne of the types of hydrogen degradation of steel welded joints is cold cracking. The direct cause of the formation of cold cracks is simultaneous presence of hydrogen, residual stresses and brittle structure. The way of preventing the occurring of degradation is to eliminate at least one of these factors. Practice has shown that the best solution is to control the amount of hydrogen in deposited metal. In this paper an experimental...
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Hardened Steel Surface Waviness Created by Rolling Burnishing Process
PublicationThe surface of the finishing machined parts is defined mainly by roughness parameters. Growing demands on the part, especially mating sliding or rolling, require the specification of additional parameters, such as waviness parameters, particularly when there is significant resistance to seizing or noise reduction. This paper presents surface waviness characteristics of hardened burnished steel.
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The role of the European Union and democratisation process in post-communist Romania
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Modification of SiC based nanorods via a hydrogenated annealing process
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Technological and tribological aspects of milling-burnishing process of complex surfaces
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Molecular Insight into the Self-Assembly Process of Cellulose Iβ Microfibril
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Ti3C2 MXenes-based catalysts for the process of α-pinene isomerization
PublicationIn this study, the catalytic performance of Ti3C2 MXene materials in the reaction of α-pinene isomerization was demonstrated. The influence of etching agents (HF, HF/H2SO4, and HF/HCl; weight ratios of mixed acids: 1 : 3, 1 : 4, and 1 : 5) on removing Al atoms from MAX phase, creation of an accordion-like structure typical...
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Teaching methodology of the diagnosing process on the example of the fire alarm system
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Feasibility study of a novel hot stamping process for Ti6Al4V alloy
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Mechanical and Non-Destructive Testing of Plasterboards Subjected to a Hydration Process
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The Spatial and Temporal Distribution of Process Gases within the Biowaste Compost
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Meta-Design and the Triple Learning Organization in Architectural Design Process
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What Determines Export Diversification in the Development Process? Empirical Assessment
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Method of data anomaly detection in the process of mobile applications installation
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The mycobiota of landfill leachates in the pretreatment process in a sequencing batch reactor
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A Process-Centered Approach to the Description of Clinical Pathways—Forms and Determinants
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Becoming a Learning Organization Through Dynamic Business Process Management
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Model of the combustion process in the marine 4-stroke diesel engine
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Generation of Optimal Process Plan Alternatives for Manufacturing Mechanical Components
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Generative Process Planning with Reasoning Based on Geometrical Product Specification
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A system solution for integration of process planning and control in flexible manufacturing
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Enzymatic Activity as New Moorsh-Forming Process Indicators of Peatlands
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Quantum chemical modelling of the process of lithium insertion into WO3 films
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Study of the process of tool forming made of high-strength materials
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Kinetics studies of recrystallization process of metallic catalysts for ammonia synthesis
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The effect of unfavourable process conditions on the water desalination by membrane distillation
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Environmental fracture of polypropylene membranes used in membrane distillation process
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Effect of flow-rate on ethanol separation in membrane distillation process
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Wettability of polypropylene capillary membranes during the membrane distillation process
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Advent of a Contemporary European Hospital – Origins of the Process of Architectural Development
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The Effect of Valley Location in Two-Process Surface Topography Analysis
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Entropy criterion of random states for granular material in a mixing process
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Studies of a mixing process induced by a transverse rotating magnetic field
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Analysis of the Corrosion Process with the Application of the Novel Type of Coupon Installation
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Modeling of production planning and control process consistent with theory of constraint
PublicationArtykuł dotyczy problematyki zastosowania metody werbel-bufor-lina do planowania produkcji w systemach produkcyjnych z wielokrotnymi buforami. W artykule przedstawiono algorytm - jego funkcje, dane wejściowe i wyjściowe - który może mieć zastosowanie do modelowania procesu planowania i sterowania produkcją. Algorytm umożliwia określenie wielkości czasowych buforów w systemie oraz terminów rozpoczęcia i zakończenia realizacji zadań....
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Application of higher order spectra in harmonic analysis of corrosion process
PublicationZjawiska nieliniowe są niezwykle często spotykane w praktyce badań elektrochemicznych i korozyjnych. Typowym przykładem są procesy elektrodowe kontrolowane szybkością przeniesienia ładunku. Często stosowanym w takich przypadkach podejściem jest aproksymacja fragmentu krzywej prąd-napięcie za pomocą charakterystyki liniowej. W niniejszej pracy autorzy prezentują możliwość wykorzystania pomiarów składowych harmonicznych do oceny...
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Design of standard cells library for UMC L130E FSG process
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Data Extraction, Transformation and Loading process in data warehouse development.
PublicationOmówiono podstawowe elementy procesu projektowania hurtowni danych.
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Hardware-in-the-Loop Simutation of the Synchronization Process of Electric Power Units.
PublicationPrzedstawiono nowoczesne urządzenia do badań synchronizatorów automatycznych w warunkach laboratoryjnych. Szczególną uwagę poświęcono systemowi wizualizacji tych urządzeń )przy ich pomocymożliwa jest ciągła kontrola, sterowanie i wizualizacja procesem synchronizacji w systemie elektroenergetycznym.
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Use of AMI Meters in the Process of Low Voltage Grid Optimization
PublicationThis is a report of a project involving, inter alia, low voltage grid performance optimization with data from AMI meters . The study was supported with a European UPGRID grant, and executed by a consortium of companies from seven European countries, including Poland .
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Reduction of Computational Complexity in Simulations of the Flow Process in Transmission Pipelines
PublicationThe paper addresses the problem of computational efficiency of the pipe-flow model used in leak detection and identification systems. Analysis of the model brings attention to its specific structure, where all matrices are sparse. With certain rearrangements, the model can be reduced to a set of equations with tridiagonal matrices. Such equations can be solved using the Thomas algorithm. This method provides almost the same values...
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Ultrafiltration Process in Disinfection and Advanced Treatment of Tertiary Treated Wastewater
PublicationThe paper presents the results of research on the use of ultrafiltration, using membranes of 200 and 400 kDa separation, for disinfection of municipal treated wastewater. The research was conducted on a fractional technical scale using real municipal treated wastewater from two large wastewater treatment plants treating most of the wastewater over the one-million polycentric Gdańsk agglomeration (1.2 million inhabitants). UF 200...
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Key success factors for small design offices in the bidding process
PublicationCompetition in the design office market is high, therefore it is important to be aware of the conditions determining the competitive advantage, thus increasing the bidding effectiveness. For this reason, the aim of the article is to identify key success factors (KSF) increasing successful bidding of a small design office. The factors were identified and then analysed based on a literature review, expert interviews and using Group...
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Evaluation of the glycerolysis process and valorisation of recovered polyol in polyurethane synthesis
PublicationIn this study, the glycerolysis of polyurethane (PU) foam and the applicability of obtained glycerolysate (GLY) for cast PUs were investigated. It was found that crude glycerine with purity grade of 84% might be successfully used for the glycerolysis. The optimal conditions were determined as follows: reaction time of 60 min at 220 °C using dibutyltin dilaurate catalyst (0.5%). Moreover, the purification of GLY by means of liquid-liquid...
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Modelling of fracture process in concrete using a novel lattice model.
PublicationArtykuł omawia wyniki modelowania procesu zarysowania w elementach betonowych przy zastosowaniu dyskretnego modelu kratownicowego. Beton był modelowany na poziomie mezoskali z uwzględnieniem 3 faz: kruszywa, zaczynu cementowego i stref kontaktu. Obliczenia wykonano dla rozciągania i ścinania połączonego z rozciąganiem.
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Modelling of fracture process in brittle materials using a lattice model
PublicationW artykule przedstawiono wyniki obliczeń propagacji rys w elementach betonowych przy zastosowaniu modelu dyskretnego opartego na ruszcie belkowym. Obliczenia wykonano dla różnych problemów brzegowych. Dla redukcji kruchości w obszarze pokrytycznym przyjęto model nielokalny obliczenia odkształceń.
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A 3D lattice model to describe fracture process in fibrous concrete
PublicationArtykuł omawia wyniki modelowania procesu zarysowania w elementach betonowych zawierające stalowe włókna przy zastosowaniu dyskretnego modelu kratownicowego. Beton był modelowany na poziomie mezoskali z uwzględnieniem 5 faz: kruszywa, zaczynu cementowego, włókien i obu stref kontaktu. Obliczenia trójwymiarowe wykonano dla jednoosiowego rozciągania.
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Study of fracture process in concrete using a discrete lattice model.
PublicationW artykule omówiono wyniki numeryczne z zastosowaniem dyskretnego modelu rusztowego złożonego z belek do symulacji procesu zarysowania w elementach betonowych. Obliczenia wykonano dla różnych procesów obciążeniowych. Wyniki porównano jakościowo z wynikami doświadczeń.