displaying 1000 best results Help
Search results for: PILE TOE RESISTANCE
-
Iterative‐recursive estimation of parameters of regression models with resistance to outliers on practical examples
PublicationHere, identification of processes and systems in the sense of the least sum of absolute values is taken into consideration. The respective absolute value estimators are recognised as exceptionally insensitive to large measurement faults or other defects in the processed data, whereas the classical least squares procedure appears to be completely impractical for processing the data contaminated with such parasitic distortions. Since...
-
Relationship between cavitation resistance of laser produced alloys and their ability to work hardening
PublicationBadano odporność kawitacyjną laserowo wytworzonych stopów na stalach konstrukcyjnych i ich związek ze zdolnością do umacniania się pod wpływem działania obciążeń kawitacyjnych. Wykazano, że mikrotwardość powierzchni wykazuje monotoniczną zależność z odpornością kawitacyjną i zdolnością do umacniania.
-
Comparison of corrosion resistance of al-alloys by means of dynamic electrochemical impedance spectroscopy
PublicationPrzeprowadzono badania metodą dynamicznej elektrochemicznej spektroskopii impedancyjne stopów 1100 i 5162. Zaproponowano zastępcze modele elektryczne opisujące zachowanie się stopów w warunkach ekspozycji w roztworach zawierających wysokie stężenie jonów chlorkowych. Wyznaczono zmiany podstawowych parametrów elektrycznych układów zastępczych od potencjału. Stwierdzono wyższą podatność na korozję stopu 5162 w porównaniu ze stopem...
-
Antibiotic resistance in Staphylococcus aureus strains isolated from cows with mastitis in the eastern Poland and analysis of susceptibility of resistant strains to alternative non-antibiotic agents: lysostaphin, nisin and polymyxin B.
PublicationThe aim of the studies was analysis of resistance of Staphylococcus aureus isolates from bovine mastitis in eastern part of Poland to a set of 20 antibiotics and three alternative agents: lysostaphin, nisin and polymyxin B. Eighty-six out of 123 examined isolates were susceptible to all of 20 tested antibiotics (70 %). The highest percentage of resistance was observed in the case of β-lactam antibiotics: amoxicillin (n=22, 17.9...
-
Analysis of antibiotic resistance in Escherichia coli isolated from the Reda River and the Oliwski Stream using basic statistical methods = Zastosowanie metod ststystycznych do analizy antybiotykoodporności bakterii wskaźnikowych pochodzących z rzeki Redy i Potoku Oliwskiego
PublicationIn this study distribution of antimicrobial resistance patterns among fecal indicator bacteria (Escherichia coli and Enterococcus spp.) was examined in two watercourses. The susceptibility analyses were carried out against the antimicrobial agents, important in treating human E. coli and enterococcal infection. Water samples were obtained from the Oliwski Stream and from the Reda River. On each watercourse the five representative...
-
The modulatory effect of green tea catechin on drug resistance in human ovarian cancer cells
Publication -
Polymer‐silica additive as a modifier of tribological properties of ecological grease, improvement of fatigue resistance
Publication -
Range of motion of resistance exercise affects the number of performed repetitions but not a time under tension
Publication -
The Influence of Laser Surface Alloying on the Thermal Fatigue Resistance of Hot Work Tool Steels
Publication -
The impact of laser surface treatment on the microstructure, wear resistance and hardness of the AlMg5 aluminum alloy
Publication -
Identification of Leaf Rust Resistance Genes in Selected Wheat Cultivars and Development of Multiplex PCR
Publication -
Corrosion resistance evaluation of Al‐based alloys by means of dynamic electrochemical impedance spectroscopy
Publication -
Increase in wear resistance of nickel plasma coatings under traditional and combined treatment conditions
Publication -
Weathering Resistance of Waterborne Polyurethane Coatings Reinforced with Silica from Rice Husk Ash
Publication -
Antibiotic resistance among Escherichia coli urinary isolates and their susceptibility to clove essential oil
Publication -
Effect of Aluminizing on the Fatigue and High-Temperature Corrosion Resistance of Inconel 740 Nickel Alloy
Publication -
MIX2: A Novel Natural Multi-Component Modulator of Multidrug-Resistance and Hallmarks of Cancer Cells
Publication -
Amide/Amino-Based Functional Additives for Lubricants: Structure, Antimicrobial Activity and Wear Resistance
Publication -
Influence of cavitation intensity on the relative cavitation resistance of laser processed C45 carbon steel
PublicationPraca przedstawia badania względnej odporności kawitacyjnej we wstępnym okresie niszczenia laserowo przetopionej 6 kW laserem CO2 stali C45. Badania odporności kawitacyjnej wykonano na stanowisku z wirującą tarczą. Na erodowanej przetopionej warstwie powierzchniowej określono trzy obszary o różnej intensywności oddziaływania obciążeń kawitacyjnych. Określano wielkość odkształceń plastycznych w analizowanych obszarach, spowodowanych...
-
Corrosion resistance evaluation of Al-based alloys by means of dynamic electrochemical impedance spectroscopy
PublicationW pracy przedstawiono wyniki badań stopów aluminium wykonane za pomocą dynamicznej elektrochemicznej spektroskopii. Na podstawie uzyskanych widm impedancyjnych zostały pokazane zmiany parametrów elektrycznego schematu zastępczego z potencjałem. Stwierdzono, że dodatek magnezu do badanego stopu obniża właściwości przeciwkorozyjne stopu.
-
Strategies for overcoming ABC-transporters-mediated multidrug resistance (MDR) of tumor cells. Review
PublicationOporność wielolekowa (MDR) nowotworów jest główną przyczyną niepowodzeń w chemoterapii przeciwnowotworowej. Jest ona wynikiem nadprodukcji w komórkach opornych transporterów białkowych z nadrodziny ABC, eksportujących cytostatyk z komórki, których działanie uniemożliwia utrzymanie terapeutycznego stężenia leku. W publikacji dokonano przeglądu różnych strategii przeciwdziałania zjawisku MDR. Strategie te dotyczą zarówno kontroli...
-
Active Linear Tunable Resistance Element and Application to Feedforward Linearization of CMOS Transconductance Amplifier
PublicationW pracy przedstawiono koncepcję układową przestrajalnego rezystora liniowego MOS wykorzystującego tranzystory pracujące w zakresie triodowym. Opracowana struktura, jak wykazały symulacje komputerowe, charakteryzuje się dobrymi właściwościami zarówno jeżeli chodzi o zakres przestrajania jak i liniowość charakterystyk przejściowych. Pozwoliło to efektywnie wykorzystać prezentowany element do linearyzacji operacyjnego wzmacniacza...
-
Monte Carlo simulations of the fracture resistance degradation of asphalt concrete subjected to environmental factors
PublicationThe paper presents the results of laboratory tests of SCB (semi-circular beam) samples of asphalt concrete, subjected to the destructive effect of water and frost as well as the aging processes. The determined values of material parameters show significant dispersions, which makes the design of mixtures difficult. Statistical analysis of the test results supplemented by computer simulations made with the use of the proprietary...
-
Enhancement of photocatalytic-based processes by mono- and bimetallic (CuPd) rutile loaded nanoparticles for antibiotic resistance genes and facultative pathogenic bacteria removal
PublicationThe aim of the study was the strong reduction of facultative pathogenic bacteria (FPB), and clinically relevant antibiotic resistance genes (ARGs) from secondary effluent. To evaluate the ARGs removal efficiency comparative study of individual unit processes and combined AOPs has been performed. The present work investigated: i) removal of selected ARGs, namely blaTEM, ermB, qnrS, tetM, five FPB as well as 16S rDNA and the integrase...
-
Model tests of cast-in-place piles formed by using different types of auger
PublicationModel tests are still a popular research tool used to observe and determine the mechanisms of pile-soil interaction. Due to the significant scale effect, the results of model tests performed in the 1g system can only be analysed from the qualitative side. This article describes and presents the results of 1g pile model tests carried out for comparative purposes. There were tested the effectiveness and efficiency of various types...
-
Retrievable strain measuring system in screw displacement piles - readings and results interpretation problems
PublicationStatic load tests on foundation piles are generally carried out in order to determine load – displacement characteristic of the pile. For more detailed information, e.g. force distribution along the shaft, load transfer mechanism and characteristics of soil-structure interaction (unit resistance curves t-z, q-z) additional pile instrumentation is required. Most popular techniques focus on direct concrete strain measurements and...
-
Bearing capacity of monotonically installed tapered piles in medium dense Fontainebleau sand
PublicationA series of installation of tapered piles in medium-dense Fontainebleau sand were performed in the geotechnical centrifuge at Gustave Eiffel University. The models of piles with three different shapes - straight profile (S), and with taper angle of 0.70 degrees (T1), and 1.4 degrees (T2) were used. The piles were instrumented with fiber optic wires on the shaft and load cell at the base. After monotonic installation, the models were...
-
The effect of the wood temperature upon specific cutting resistance during machining with narrow-kerf saws
PublicationW pracy przedstawiono wyniki badań eksperymentalnych właściwego powierzchniowego oporu skrawania drewna sosny w funkcji wilgotności drewna, temperatury drewna oraz prędkości posuwu podczas przecinania cienkimi piłami. Proces cięcia prowadzono na pilarce ramowej wielopiłowej PRW15M. Sosnowe próbki przed badaniami mrożono w komorze klimatycznej - temperatura drewna -5 C deg., -20 C deg., +20 C deg. Czas wymrażania przed próbami określano...
-
Resistance changes of carbon nanotubes decorated with platinum nanoparticles in the presence of hydrogen at different and constant concentrations
Publication -
Increased Expression of Several Collagen Genes is Associated with Drug Resistance in Ovarian Cancer Cell Lines
Publication -
Contrast Tempo of Movement and Its Effect on Power Output and Bar Velocity During Resistance Exercise
Publication -
The impact of resistance exercise range of motion on the magnitude of upper-body post-activation performance enhancement
Publication -
Non-Pharmacological Treatments for Insulin Resistance: Effective Intervention of Plant-Based Diets—A Critical Review
Publication -
Analysis of miRNA expression associated with gene Lr34 responsible for resistance mechanisms to wheat leaf rust
Publication -
Recycled polyethylene and crumb rubber composites modified asphalt with improved aging resistance and thermal stability
Publication -
Virulence and Drug-Resistance of Staphylococcus aureus Strains Isolated from Venous Ulcers in Polish Patients
Publication -
Scuffing and rolling contact fatigue resistance of discrete laser spot hardened austempered ductile iron
Publication -
The problems of resistance to scuffing of heavily loaded lubricated friction joints with WC/C-coated parts
Publication -
Effects of Laser Remelting at Cryogenic Conditions on Microstructure and Wear Resistance of the Ti6Al4V Alloy Applied in Medicine
PublicationThe titanium and its alloys can be subjected to surface treatment, including laser treatment. In this work a new laser treatment at cryogenic conditions of Ti6Al4V alloy has been described. The work has been aimed at establishing whether such surface treatment could be suitable for implants working under wear in biological corrosive environment. The remelting has been made with the use of CO2 continuous work laser at laser power...
-
Fabrication, Microstructure and High Temperature Corrosion Resistance of Porous Alloys for Solid Oxide Fuel Cells
PublicationPorous alloys find use in modern Solid Oxide Fuel Cells as the supporting structures. As they are exposed to high temperatures (> 500°C) an oxide scale forms on their surface due to high temperature corrosion phenomena. Since the ratio between the surface area and volume is much higher than for planar samples, formation of the oxide can lead to a breakaway oxidation after relatively short times. Therefore corrosion properties of...
-
Comparison of buckling resistance of columns modelled by beam and shell elements using non-linear analysis
PublicationThe aim of the paper is to investigate the stability process in the axially compressed columns modelled by beam and shell elements using static and dynamic finite element analysis by taking both the geometric and material non-linearity into account. The perfect columns and columns with geometric imperfections were analysed. The differences between the results of static and dynamic analyses in shell and beam models were discussed.
-
Two small RNAs conserved in Enterobacteriaceae provide intrinsic resistance to antibiotics targeting the cell wall biosynthesis enzyme glucosamine-6-phosphate synthase
PublicationFormation of glucosamine-6-phosphate GlcN6P) by enzyme GlcN6P synthase (GlmS) represents the first step in bacterial cell envelope synthesis. In Escherichia coli, expression of glmS is controlled by small RNAs (sRNAs) GlmY and GlmZ. GlmZ activates the glmS mRNA by base-pairing. When not required, GlmZ is bound by adapter protein RapZ and recruited to cleavage by RNase E inactivating the sRNA. The homologous sRNA GlmY activates...
-
The influence of microstructure on the corrosion resistance for some titanium-based alloys
Open Research DataThis dataset contains scanning electron microscopy (SEM) micrographs revealing the microstructure of some Ti-based alloys, namely: Ti-6Al-4V (file name: TiV), Ti-6Al-7Nb (file name: TiNb) and TC21 (file name: TiAlSnZrMoCrNbSi) alloys and their localized corrosion as a result of passive layer breakdown in a corrosive environment, ie. 0.9% NaCl solution...
-
Functional Interfaces, Biological Pathways, and Regulations of Interferon-Related DNA Damage Resistance Signature (IRDS) Genes
Publication -
Corrigendum: Contrast Tempo of Movement and Its Effect on Power Output and Bar Velocity During Resistance Exercise
Publication -
Analysis of MDR genes expression and cross-resistance in eight drug resistant ovarian cancer cell lines
Publication -
Effect of plasma nitriding process on the fatigue and high temperature corrosion resistance of Inconel 740H nickel alloy
Publication -
Linezolid-Resistant Enterococcus spp. Isolates from Foods of Animal Origin—The Genetic Basis of Acquired Resistance
Publication -
Technical and Training Related Aspects of Resistance Training Using Blood Flow Restriction in Competitive Sport - A Review
Publication -
Impact of movement tempo on bar velocity and time under tension in resistance exercises with different external loads
Publication