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Search results for: RESSISTANCE MECHANISM
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NIRCa: An artificial neural network-based insulin resistance calculator
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Insulin resistance and hypertension: lessons learned from studies in children
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Antimicrobial resistance of fecal indicators in municipal wastewater treatment plant
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Corrosion resistance of dissimilar austenite and duplex steels welded joints
PublicationW artykule przedstawiono wpływ warunków spawania, a zwłaszcza energii liniowej, na odporność korozyjną złączy różnoimiennych stali austenitycznej 316L i typu duplex 2203. Przedstawiono wyniki testów korozyjnych:korozji wżerowej wg ASTM G48 oraz korozji naprężeniowej badanej w próbach odkształcania z małą pędkością w środowisku roztworu chlorku magnezowego.
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Mechanical properties and corrosion resistance of dissimilar stainless steel welds
PublicationW artykule przedstawiono właściwości mechaniczne oraz odporność korozyjną doczołowych złączy różnoimiennych stali odpornych na korozję, austenitycznej 316L oraz duplex 2205. Blachy o grubości 15 mm spawano automatycznie łukiem krytyn z różnymi energiami liniowymi. Wykazano, że właściwości mechaniczne złączy spełniają wymagania okrętowych towarzystw klasyfikacyjnych, natomiast najbardziej narażoną strefą złącza na działanie korozji...
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Scuffing resistance of DLC-coated gears lubricated with ecological oil
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The Role of miRNA-7 in the Biology of Cancer and Modulation of Drug Resistance
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The Scuffing Resistance of WC/C Coated Spiral Bevel Gears
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Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
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Filtering of interference signals of grounding resistance measurement with subharmonic method
PublicationOmówiono metodę filtracji zakłóceń o częstotliwości sieciowej wraz z wyższymi harmonicznymi poprzez zastosowanie metody szczególnego próbkowania z podharmonicznym sygnałem pomiarowym.
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Loading pattern effects on fatigue resistance of slide bearing lining
PublicationPrzedstawiono relacje pomiędzy przebiegami obciążeń dynamicznych a stanem naprężeń w warstwie nośnej łożysk ślizgowych. Porównano przebiegi naprężeń dla maszyny badawczej MWO (z wirującym wektorem obciążenia) do naprężeń charakterystycznych dla maszyny SMOK (z jednokierunkowym zmiennym wektorem obciążenia).
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Symmetry-controlled negative differential resistance effect in a triangular molecule
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Influence of C60and Fullerene Soot on the Oxidation Resistance of Vegetable Oils
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Resistance Noise Higher-Order Spectrums in Nanoparticle Gas Sensors.
PublicationPrzedstawiono badania fluktuacji rezystancji sensora gazu wykonanego z nanocząstek WO3. Stwierdzono występowanie składowych o rozkładzie prawdopodobieństwa różnym od rozkładu Gaussa. W celu zwiększenia czułości i selektywności wykrywanych gazów zastosowan do analizy obserwowanych fluktuacji spektra wyższych rzędów.
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DESIGN AND CALIBRATION OF ROLLING RESISTANCE TEST TRAILER R2mk.2
PublicationThe paper describes construction nad calibration procedures of the rolling resistance test trailer R2 Mk2. The trailer is design to measure rolling resistance of passenger car tyres in various road conditions on trafficked road. The trailer utilizes so called angle method also known as vertical arm method. The paper presents also calibration procedures that are necessary to ascertain good precision of the measurements.
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Comparison of Tire Rolling Resistance Measuring Methods for Different Surfaces
PublicationThe rolling resistance of car tires is one of the most important parameters characterizing tires today. This resistance has a very significant contribution to the energy consumption of wheeled vehicles. The climate crisis has forced tire and car manufacturers to place great emphasis on the environmental impact of their products. Paradoxically, the development of electric vehicles has led to an even greater importance of rolling...
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Cavitation Erosion Resistance of Austenitic Microstructure Created byLaser Beam
PublicationPraca przedstawia własności kawitacyjne różnych mikfrostruktur austenitycznych tworzonych za pomocą wiązki lasera na stalach X5CrNi18-10 oraz C45. Stal X5CrNi18-10 była laserowo stopowana węglikiem TiC oraz stopowana Ni, Mn, Cr i Nb. Jako żródło mocy stosowany był laser CO2. Własności kawitacyjne oceniane były na stanowisku z wirującą tarczą. Badania ujawniły różną podatność struktury austenicycznej do odkształceń plastycznych...
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Thermal Transitions in P3HT:PC60BM Films Based on Electrical Resistance Measurements
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Reduction of Tire Rolling Resistance by Optimization of Road Surfaces and Tires
PublicationDuring interaction between tire and road surface three very important phenomena are always in effect. One of them (very desirable) is friction that is important for traction, braking and cornering. Two other phenomena are not desirable at all, that is rolling resistance and noise. This paper discusses relations between road surface and tire parameters versus tire rolling resistance. Road surface texture, porosity, impedance, strength...
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The analysis of soil resistance during screw displacement pile installation
PublicationThe analysis of soil resistances during screw displacement pile installation based on model and field tests. The investigations were carried out as a part of research project, financed by the Polish Ministry of Science and Higher Education. A proposal of empirical method for prediction of rotation resistance (torque) during screw auger penetration in non-cohesive subsoil based on CPT result.
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Reduction of noise and rolling resistance by horizontal grinding of asphalt pavements
PublicationGrinding of cement concrete pavements to reduce unevenness and noise is common since a long time. Grinding is then made with wheels equipped with diamond blades rotating in the vertical plane. This creates narrow vertical/longitudinal grooves in the pavement. It is not applied to asphalt pavements. In this paper an alternative type of grinding is studied. In this case plates with diamond heads rotate in the same plane as the pavement,...
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Fecal indicators resistance to antimicrobial agents present in municipal wastewater
PublicationIn this study removal rate of six antimicrobial compounds (belonging to folate pathway inhibitors and macrolides class) was analyzed in processes of local wastewater treatment plant (WWTP) together with susceptibility patterns of erythromycin (E) resistant Enterococcus spp. and trimethoprim/sulfamethoxazole (SXT) resistant Escherichia coli. According to the obtained data, six of tested antimicrobial agents, namely erythromycin,...
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Magnetic composite adsorbents of phenolic compounds with superior corrosion resistance
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Antimicrobial resistance of fecal indicators in muncipal wastewater treatment plant
PublicationAntimicrobial resistance of fecal coliforms (n = 153) and enterococci (n = 199) isolates was investigated in municipal wastewater treatment plant (WWTP) based on activated sludge system. The number of fecal indicators (in influent and effluent as well as in the aeration chamber and in return activated sludge mixture) was determined using selective media. Susceptibility of selected strains was tested against 19 (aminoglycosides,...
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Coatings for improvement of high temperature corrosion resistance of porous alloys
PublicationPorowate stopy metaliczne są potencjalnymi podłożami nośnymi dla tlenkowych ogniw paliwo. Ich stosowanie obniża cenę ogniw paliwowych, co zaowocuje ich szybszą komercjalizacą. Jednak są one podatne na korozję w wysokich temperaturach. Dotychczas brak jest metod, które mogą poprawić rezystancję korozyjną porotawych stopów w wysokich temperaturach porowatych stopy do zastosowań SOFC. W tym artykule zaproponowano sposób na poprawę...
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Detection of sulfonamide resistance genes via in situ PCR-FISH
PublicationDue to the rising use of antibiotics and as a consequence of their concentration in the environment an increasing number of antibiotic resistant bacteria is observed. The phenomenon has a hazardous impact on human and animal life. Sulfamethoxazole is one of the sulfonamides commonly detected in surface waters and soil. The aim of the study was to detect sulfamethoxazole resistance genes in activated sludge biocenosis by use of...
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Hydraulic resistance analyses of selected elements of the prototype Stirling engine
PublicationThe paper presents the results of simulation tests of hydraulic resistance and temperature distribution of the prototype Stirling alpha engine supplied with waste heat. The following elements were analyzed: heater, regenerator and cooler. The engine uses compressed air as a working gas. Analyses were carried out for three working pressure values and different engine speeds. The work was carried out in order to optimize the configuration...
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Specific cutting resistance while sawing of wood - the size effect
PublicationW artykule przedstawiono wyniki analiz zmian właściwego oporu skrawania, przy zastosowaniu współczesnej mechaniki pękania z uwzględnieniem wiązkości. Analizy wykonano dla procesu przecinania drewna na pilarce ramowej PRW15M drewna jesionu i jesionu modyfikowanego termicznie. Zastosowane podejście pozwala na wyjaśnienie zjawiska wzrostu właściwego powierzchniowego oporu skrawania dla niewielkich grubości warstwy skrawanej jako efektu...
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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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Multi-objective weather routing of sailboats considering wave resistance
PublicationThe article presents a method to determine the route of a sailing vessel with the aid of deterministic algorithms. The method assumes that the area in which the route is to be determined is limited and the basic input data comprise the wind vector and the speed characteristic of the vessel. Compared to previous works of the authors, the present article additionally takes into account the effect of sea waves with the resultant resistance...
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Selected Aspects of Pavement Texture Influence on Tire Rolling Resistance
PublicationTire rolling resistance has a significant influence on fuel consumption in cars and trucks and on CO2 emissions. Rolling resistance depends on the tire construction, pavement texture and stiffness, as well as environmental and traffic conditions. This article presents a pilot study on the impact of pavement texture on the rolling resistance of passenger car tires. Reasons why Mean Profile Depth is not a good descriptor of pavement...
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Experimental Study of the Resistance to Influence of Aggressive Liquids on Lightweight Concrete
PublicationIn light of the scientific research, the corrosion of concrete structures is one of the main problems that may reduce their durability due to the negative impact of the natural environment. The paper analyzes the influence of the type of component on the selected properties of lightweight concrete subjected to the influence of aggressive liquids. Four concrete mixes were prepared with a granular aggregate made of foamed glass (GEGA)...
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Study of the Resistance to Influence of Aggressive Liquids on Concrete with Lightweight Aggregate
PublicationThe corrosion of the structure of concrete caused by the aggressive external environment is one of the main problems that can reduce the durability of buildings. The paper analyzes the influence of the type of component on selected properties of lightweight concrete (LWC) exposed to aggressive liquids. When lightweight concrete containing porous aggregates is used, the influence of an aggressive environment may be of particular...
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Prediction of ship resistance with the use of Full-scale CFD simulations
PublicationIn recent years, the IMO has introduced new regulations to reduce the negative impact of ships on the natural environment. A particularly important step forcing technological innovations is the increasing requirement of ship energy efficiency. It is expressed by the Energy Efficiency Design Index (EEDI). Another important step towards green shipping is rising the required quality of fuel used for propulsion, so called Tier limits....
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Review of Selected Methods for Prediction of Added Resistance in Following Waves
PublicationThe added resistance in waves is a mean value of non-linear, second order reaction of a ship to incoming waves. In the beginning of the 20th century, the experimental methods for investigation of ship hydrodynamics at model scale were developed. They allowed the evaluation of added resistance by measurements in irregular waves (directly) or by measurements in regular waves (in-direct method). The main goal was to find more precise...
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Evidence of mutations conferring resistance to clarithromycin in wastewater and activated sludge
PublicationThe occurrence of clarithromycin in wastewater samples and of the activated sludge bacteria possibly resistant to this pharmaceutical was the object of the study. Samples of wastewater or activated sludge were taken from a municipal wastewater treatment plant in summer and winter and characterised regarding their clarithromycin concentrations and the presence of nucleic acid fragments (Cla-sequences) known to be responsible for...
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Anna Brillowska-Dąbrowska dr hab. inż.
PeopleAnna Brillowska-Dąbrowska, born in 1971 in Gdańsk, Poland, graduated in 1996 in Biotechnology from the Faculty of Chemistry, Gdańsk University of Technology (GUT). In 2001 she got her PhD, in 2013 became a DSc (habilitation). She was employed in 2004 as a researcher in Statens Serum Institut in Denmark. Currently she is an Associate Professor (adiunkt) in the Department of Molecular Biotechnology and Microbiology and Vice-dean...
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Mechanisms for supporting electric vehicle purchasers in selected European countries in 2011-2016
Open Research DataThe European authorities have not developed a single common preference model for electric car buyers within the Union. Different countries have decided on different solutions. The following dataset presents mechanisms for supporting electric vehicle purchasers in selected European countries in years 2011-2016, including both economical (in the form...
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Psychological consequences of multiple sclerosis and assistance possibilities
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Nanocomposites of Graphene Oxide—Silver Nanoparticles for Enhanced Antibacterial Activity: Mechanism of Action and Medical Textiles Coating
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267: Mesenchymal cells regulate growth of intestinal crypts by a Wnt independent mechanism in 3D culture system
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Molecular simulations study of ligand-release mechanism in an odorant-binding protein from the southern house mosquito
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Strengthening mechanism and precipitate evolution of a multi-application special engineering steel designed based on a hybrid idea
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The impedance method of monitoring the degradation of rubber linings in applications where progressive deterioration is the predominant failure mechanism
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Isoform-specific inhibition of DNA topoisomerase II as the mechanism of action of novel anticancer agent C-1305
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Chemical kinetic approach to the mechanism of coupled transport of Cu(II) Ions through bulk liquid membranes
PublicationW celu lepszego zrozumienia transportu jonów miedzi przez ciekłe membrany zaproponowano schemat kinetyczny na poziomie molekularnym oparty o dwie nastepujące po sobie reakcje odwracalne. Zasegurowano uzywając membrany ciekłej o wysokiej polarności i polaryzowalności oraz szybkiego mieszania mozna zwiekszyć wydajnośc transportu.
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Oscillatory Mechanism of α-Fe(N) ↔ γ’-Fe4N Phase Transformations during Nanocrystalline Iron Nitriding
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Comparison of radical-driven technologies applied for paraben mixture degradation: mechanism, biodegradability, toxicity and cost assessment
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Mechanism of recognition of parallel G-quadruplexes by DEAH/RHAU helicase DHX36 explored by molecular dynamics simulations
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A Single Mutation in a Tunnel to the Active Site Changes the Mechanism and Kinetics of Product Release in Haloalkane Dehalogenase LinB*
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