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Search results for: emulsifi ers
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Liquid-liquid separation in petroleum production: ultrasonic characterization of emulsion stability.
PublicationPrzedstawiono nowe urządzenie pozwalające monitorować rozdział emulsji za pomocą ultradźwięków. Wykonano kalibrację, dzięki której można sygnał szybkości rozchodzenia się dźwięków przekształcać na stężenie fazy wewnętrznej emulsji oraz otrzymywać wykres rozdziału faz w czasie. Wyniki otrzymano dla modelowej emulsji typu O/W, w której fazę olejową stanowił bitumen oraz dla emulsji W/O, gdzie fazą olejową była ropa naftowa
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Emulsion cleaning of metal surfaces contaminated with fresh and oxidized printing ink.
PublicationWykonano badania usuwania farby drukarskiej, stosowanej do druku offsetowego za pomocą emulsji terpentyny i hexanu w wodzie.
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Investigation on domestic fruits seed oils in personal care emulsion systems
PublicationThe use of fruit seed oils in personal care products is of significance to both their function and image. Poland is an important processor of fruit products within the EU, and thus has a large availability of seeds from domestic fruits, which are normally considered to be a waste material. Unfortunately, current literature is scarce of the suitability of these oils for topical use in the form of cosmetic emulsions. Published data...
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Experiments and numerical analyses for composite RC-EPS slabs
PublicationW artykule przedstawiono wyniki doświadczalne i numeryczne dla kompozytowych płyt złożonych z żelbetu i styropianu. Wykonano doświadczenia dla płyt w skali 1:1 podczas zginania. Wyniki doświadczalne zostały modelowane stosując 2 różne modele: sprężysto-plastyczny i połączony sprężysto-plastyczny z degradacja sztywności. Oba model zostały wyposażone w długość charakterystyczna mikrostruktury. Osiągnięto dobra zgodność miedzy...
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Power balance in hydraulic satellite motors supplied with oil and HFA-E emulsion
PublicationMineral oil and HFA-E emulsion are liquids which differ in viscosity, density and lubricant properties. Therefore, supplying hydraulic satellite motors with these liquids, differences between quantity of hydraulic, volumetric and mechanical losses are observed. These losses influence efficiency of conversion of hydraulic energy into mechanical energy and thereby power balance of motors.
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Zeta potential, effective diameter and multimodal size distribution in oil/water emulsion
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Effective rheological parameters of emulsion during their generation in the agitated draft - tube reactor
PublicationBadano właściwości reologiczne emulsji O/W i W/O w warunkach ich wytwarzania w pętlicowym reaktorze dwukolumnowym z mieszaniem w strefie wznoszenia. Obliczano lepkość pozorną emulsji, wykorzystując model potęgowy Ostwalda - de Waele, w którym szybkość ścinania obliczano jako stosunek prędkości pozornej dyspersji ciecz - ciecz w strefie opadania reaktora i szerokości strefy opadania. W celu identyfikacji typu emulsji mierzono przewodnictwo...
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Review and evaluation of cold recycling with bitumen emulsion and cement for rehabilitation of old pavements
PublicationThe article presents Polish experience with cold recycling of asphalt pavements with theusage of bituminous emulsion and cement. In the 1990s numerous roads in Polandrequired immediate reinforcement due to their significant degradation. Implementation ofthe cold recycling technology was one of the solutions to this problem. Cold recycledmixtures containebeside the recycled asphalt pavement and aggregateetwo differenttypes of binding...
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Digital Humanities – Challenges for Humanities in the Digital Society Era – Foreword
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Projektowanie inteligentnych instalacji elektrycznych z wykorzystaniem programu ETS
PublicationJednym z systemów inteligentnych dedykowanych do budynków mieszkalnych oraz użyteczności publicznej jest system Europejskiej Magistrali Instalacyjnej KNX/EIB. Jest to system zdecentralizowany pozwalający, poprzez zmianę oprogramowania, na zmianę funkcji i parametrów urządzeń istniejących w danym budynku, bez konieczności przebudowy instalacji. Projektowanie instalacji i programowanie urządzeń odbywa się za pomocą specjalistycznego...
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Application of the dynamic EIS to investigation of transport within organic coatings
PublicationW pracy przedstawiono wyniki badań nad gwałtownym niszczeniem organicznych powłok ochronnych. Zastosowano technikę Dynamicznej Elektrochemicznej Spektroskopii Impedancyjnej (DEIS). Przez 60 sekund powłoka poliwinylowa poddawana była działaniu chlorku metylenu. W tym czasie rejestrowano chwilowe widma impedancyjne, co pozwoliło na prześledzenie dynamiki procesu degradacji powłoki. Potwierdzono przydatność techniki DEIS w badaniu...
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Zintegrowany System Informatyczny Klasy ERP - planowanie zasobów przedsiębiorstwa.
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Ligand Design by Ionomers. ESR of MoV in Perfluorinated Ionomer Supports
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Energy Efficiency in the Industry 4.0 Era: Attributes of Teal Organisations
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Analysis of MArkers of Exposure to Constituents of Environmental Tobacco Smoke (ETS)
PublicationTobacco smoke is a complex mixture of more than 4000 chemical compounds, many of which are harmful to human health. These compounds belong to various chemical classes, including amides, imides, lactams, carboxylic acids, aldehydes, ketones, alcohols, phenols, amines, hydrocarbons, ethers, and inorganic compounds. There are three types of tobacco smoke streams: the mainstream, the sidestream, and environmental tobacco smoke (ETS)....
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Electromagnetic Simulation with 3D FEM for Design Automation in 5G Era
PublicationElectromagnetic simulation and electronic design automation (EDA) play an important role in the design of 5G antennas and radio chips. The simulation challenges include electromagnetic effects and long simulation time and this paper focuses on simulation software based on finite-element method (FEM). The state-of-the-art EDA software using novel computational techniques based on FEM can not only accelerate numerical analysis, but...
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Composite as a Material of the Future in the Era of Green Deal Implementation Strategies
PublicationComposite materials have become synonymous with modernity, desired in nearly every aspect of our daily lives, from simple everyday objects to sanitary facilities, pipelines, the construction of modern sewer networks, their renovation, water supply, and storage reservoirs, to complex structures—automotive, planes, and space science. Composites have seen a considerable rise in attention owing to their characteristics, durability,...
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THE RISE OF FISCAL OPACITY IN POLAND IN THE ERA OF THE COVID-19 PANDEMIC
PublicationResearch background: The quality of information provided by the fiscal authorities and the correct flow of this information between them and the society are very important especially in times of crisis, when there is an imbalance in public finances and an increasing public debt. Ensuring fiscal transparency (transparency of public finances) reduces fiscal risk and corruption and supports public acceptance of fiscal reforms. Purpose...
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Studies of oil-in-water emulsion stability in the presence of new dicephalic saccharide-derived surfactants
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The Impact of Long-Time Chemical Bonds in Mineral-Cement-Emulsion Mixtures on Stiffness Modulus
PublicationDeep cold in-place recycling is the most popular method of reuse of existing old and deteriorated asphalt layers of road pavements. In Poland, in most cases, the Mineral-Cement-Emulsion mixture technology is used, but there are also applications combining foamed bitumen and cement. Mineral-Cement-Emulsion mixtures contain two different binding agents – cement as well as asphalt from the asphalt emulsion. Asphalt creates asphalt...
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Losses and power balance in hydraulic satellite motor supplied with oil and HFA-E emulsion
PublicationMineral oil and HFA-E emulsion are liquids which differ in viscosity, density and lubricant properties. Therefore, supplying hydraulic satellite motor with these liquids, differences between quantity of hydraulic, volumetric and mechanical losses are observed. These losses influence efficiency of conversion of hydraulic energy into mechanical energy and thereby power balance of motor. The research of satellite motor has been conducted...
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Stabilization and Early Degradation of UV-Irradiated Heterophasic Propylene−Ethylene Copolymers Based on ESR, ESR Imaging, UV−Vis, and DSC: Effect of Ethylene Content and UV Wavelength
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Ograniczenia w zastosowaniu wybranych modeli reologicznych do opisu właściwości emulsji
PublicationPrzeprowadzono analizę wybranych modeli reologicznych, w celu weryfikacji ich przydatności do opisu właściwości emulsji. Badano właściwości reologiczne emulsji typu O/W i W/O, otrzymywanych w wewnątrzobiegowym reaktorze dwukolumnowym z mieszaniem w kolumnie wewnętrznej. Dla emulsji O/W, najlepszą zgodność wyników doświadczalnych z obliczonymi uzyskano stosując równania Yaron - Gal-Ora i Kriegera - Dougherty. W przypadku emulsji...
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An Overview of the Application of Systems Biology in an Understanding of Chronic Rhinosinusitis (CRS) Development
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DUBBLETTEN. Projekt "Budujmy razem". Inicjatywa Wspólnotowa EQUAL (EFS) [online].
PublicationToaleta separująca, biotoaltea - rozwiązania, warunki stosowania.
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Property revenues (PRs) and expenditures of local government units (LGUs) in Poland
PublicationPRs are new category of local government revenues, which was introduced by changing the law on public finances at the end of 2006 and which took effect in 2007. By principle, these revenues should be converted into property expenditures. Their formalisation did not only allow assessing their absolute size but also a comparison with the longer existing property expenditures. Both categories were subject of analysis in this article....
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Risks related to car fire on innovative Poroelastic Road Surfaces-PERS
PublicationTo reduce tyre/road noise, the concept of poroelastic road surfaces (PERS) was invented. PERS is a road surface material that is porous, and at the same time, it is flexible because of the substantial amount of rubber granulate content (from 20% to 85%). The rubber and stone particles are bound by polyurethane resin instead of bitumen. It was feared that in case of fire, because of the high content of rubber and polyurethane, there...
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Four-node semi-EAS element in six-field nonlineartheory of shells
PublicationW pracy sformułowano 4-węzłowy powłokowy element skończony dla konstrukcji powłokowych. Element opracowano w ramach nieliniowej 6-parametrowej teorii powłok z niesymetrycznymi miarami odkształceń membranowych. Kinematyka powłoki jest opisana przez dwa pola: translacji i obrotów, przy czym wszystkie trzy parametry obrotu traktowane są jako niezależne. W wyniku tego sformułowany element nadaje się do analizy struktur powłokowych...
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System numerycznej prognozy pogody oparty na pakiecie WRF EMS
PublicationW artykule przedstawiono zagadnienia dotyczące wykorzystania systemów numerycznego prognozowania pogody przy pomocy oprogramowania wchodzącego w skład pakietu WRF EMS (ang. Weather Research and Forecast Environmental Modeling System). Artykuł opisuje podstawowe równania modelujące procesy w atmosferze oraz architekturę systemu numerycznego prognozowania pogody WRF EMS. Przedstawiono także architekturę prototypu systemu informacji...
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TIRE/ROAD NOISE AND TIRE ROLLING RESISTANCE ON PROTOTYPE PERS SURFACE
PublicationPoroelastic road surfaces are characterized by low noise of tires running on them.Road pavements of this type are promising solution to problems related to traffic noise in cities and on rural roads. Some technical problems still have to be solved, in particular regarding durability and skid resistance on wet surface. Ongoing and planned works are to contribute to create a quiet, durable and safe road surface, which will become...
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Probabilistic Analysis of Structure Models using Target Random Sampling (TRS)
PublicationThe work presents testing methods of sensitivity and reliability of mechanical or structural systems. All computations concerned the case of Zigler column, a simple model of a compressed column involving two random variables only. A conclusion was drawn that the standard Monte Carlo method, its reduction variants and the response surface method allow to assess the sensitivity of structural response to the variation of random structural...
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QRS Morphology-Based EDR Signal—Factors Determining its Properties
PublicationRespiration-induced signals contain a clinically significant information. It could be obtained utilizing both direct and indirect methods. ECG-Derived Respiration (EDR) method is the latter one. However, in this case, two approaches could be distinguished. First one is based on determining changes in the morphology of QRS complexes while the second one is based on the Respiratory Sinus Arrhythmia (RSA) mechanism. The former approach...
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Employment of University Graduates in the Era of Digitalization and Artificial Intelligence: Challenges and Prospects
PublicationDigital technologies are profoundly reshaping the labor market, causing structural shifts in the economy and altering the nature of work. These changes have significant implications for youth employment, exacerbating the issue of unemployment. This paper delves into the importance of graduate employment in contemporary society, with a particular focus on the influence of digital technologies and Artificial Intelligence. The authors...
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ACTION RES-LONDON
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