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Search results for: KATEGORIA BAIRE'A
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Investigation of the Effect of The Temperature and Magnetization Pattern on Flux Density, Instantaneous Torque, Unbalanced Magnetic Forces of a Surface Inset PMM
PublicationElectrical machines utilized in domestic applications such as ceiling fans should have low losses and cost. Permanent magnets are used instead of rotor excitation to reduce losses. Therefore, not only the losses of the rotor winding are eliminated, but also the efficiency of the machine is increased. A surface inset consequent pole (SICP) machine has also been used to reduce costs. Because less magnets are utilized in this structure....
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Structured deformation of granular material in the state of active earth pressure
PublicationThe paper focuses on the ability of granular materials to undergo structured deformation by analysing the data from the retaining wall model tests and discrete element simulations. The structured deformation means the movement of a granular material which produces a stable, regular pattern of multiple shear bands. The paper's primary purpose is to study this kind of deformation for the selected data representing the state of active...
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Computational analysis of substituent effects on proton affinity and gas-phase basicity of TEMPO derivatives and their hydrogen bonding interactions with water molecules
PublicationThe study investigates the molecular structure of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and its derivatives in the gas phase using B3LYP and M06-2X functional methods. Intermolecular interactions are analyzed using natural bond orbital (NBO) and atoms in molecules (AIM) techniques. NO2-substituted TEMPO displays high reactivity, less stability, and softer properties. The study reveals that the stability of TEMPO derivatives...
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Screening stability, thermochemistry, and chemical kinetics of 3-hydroxybutanoic acid as a bifunctional biodiesel additive
PublicationThe thermo-kinetic aspects of 3-hydroxybutyric acid (3-HBA) pyrolysis in the gas phase were investigated using density functional theory (DFT), specifically the M06-2X theoretical level in conjunction with the cc-pVTZ basis set. The obtained data were compared with benchmark CBS-QB3 results. The degradation mechanism was divided into 16 pathways, comprising 6 complex fissions and 10 barrierless reactions. Energy profiles were calculated...
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Global 30-day outcomes after bariatric surgery during the COVID-19 pandemic (GENEVA): an international cohort study
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Electrochemical determination of neurotransmitter serotonin using boron/nitrogen co-doped diamond-graphene nanowall-structured particles
PublicationElectrode fouling is a major issue in biological detection due to the adhesion of the protein itself and polymerization of biomolecules on the electrode surface, impeding the electron transfer ability and decreasing the current response. To overcome this issue, the use of anti-fouling material, especially boron-doped diamond (BDD) electrode, is an alternative way. However, the electrocatalytic activity of BDD is inadequate compared...
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Measurement of Seafloor Acoustic Backscatter Angular Dependence at 150 kHz Using a Multibeam Echosounder
PublicationAcoustic seafloor measurements with multibeam echosounders (MBESs) are currently often used for submarine habitat mapping, but the MBESs are usually not acoustically calibrated for backscattering strength (BBS) and cannot be used to infer absolute seafloor angular dependence. We present a study outlining the calibration and showing absolute backscattering strength values measured at a frequency of 150 kHz at around 10–20 m water...
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Movement perception with the use of a motorized delta armrest and virtual reality
PublicationIn this paper we present a combination of neuroscience experiments with the use of a parallel armrest robot to study the effects of temporal delays and spatial biases on the movement perception. A dedicated armrest to guide and manipulate the arm has been developed for these experiments. It is a three-degree-of-freedom Delta structure. In combination with a virtual reality application, the movement perception has been evaluated....
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Elemental and tight monogamy relations in nonsignaling theories
PublicationPhysical principles constrain the way nonlocal correlations can be distributed among distant parties. These constraints are usually expressed by monogamy relations that bound the amount of Bell inequality violation observed among a set of parties by the violation observed by a different set of parties. We prove here that much stronger monogamy relations are possible for nonsignaling correlations by showing how nonlocal correlations...
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Investigation of changes in the type B PLC effect of Al–Mg–Cu type alloy for various strain rates
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Application of Hybrid FEM-DIC Method for Assessment of Low Cost Building Structures
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Bearing current path and pulse rate in PWM-inverter-fed induction
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Frequency bands selection of the Portevin–LeChatelier effect
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Continuous‐Frequency Method of Measurement of Electrode Impedance
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Corrosion-erosion damage of heat exchanger tubes by desalted crude oil flowing at shell side
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Mercury concentration in the sediments as a function of changing climate in coastal zone of Southern Baltic Sea – preliminary results
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Modeling of wind wave induced sediment transport in the coastal zone of polish marine areas (Southern Baltic)
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SPATIAL-TEMPORAL DETECTION OF CHANGES ON THE SOUTHERN COAST OF THE BALTIC SEA BASED ON MULTITEMPORAL AERIAL PHOTOGRAPHS
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Mercury in particulate matter over Polish zone of the southern Baltic Sea
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Numerical modelling of thermodynamics and dynamics of sea ice in the Baltic Sea
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Hybrid Processing: the Impact of Mechanical and Surface Thermal Treatment Integration onto the Machine Parts Quality
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Physical-chemical processes of diamond grinding
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Research of Influence Electric Conditions Combined ElectroDiamond Processing by on Specific Consumption of Wheel*
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An invasive predator affects habitat use by native prey: American mink and water vole co-existence in riparian habitats
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Estimating Regions of Absolute Stability with the Use of Piecewise Linear Lyapunov Functions
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Excimer-based red-infrared organic light emitting diodes with very high quantum efficiency
PublicationW pracy opisano konstrukcję wydajnej organicznej ekscymerowej diody EL emitującej światło czerwone i podczerwone z wykorzystaniem organicznego kompleksu platyny.
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Manufacturing of resistant joints by rolling for light tubular structures
PublicationKoncepcja łączenia aluminiowych elementów rurowych z zastosowaniem nagniatania plastycznego jest alternatywą do istniejących metod łączenia przez spawanie i skręcanie. W artykule prezentowane są oryginalne wyniki badań wpływu parametrów nagniatania wewnętrznego i zewnętrznego oraz różnych postaci powierzchni łączonych na wytrzymałość złącza (aluminium-aluminium) pod wpływem rozciągających sił osiowych.Badania przeprowadzono na...
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Geomagnetic Storms and Substorms as Space Weather I nfluence on Atmospheric Electric Field Variations
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Melatonin maintains mitochondrial membrane potential and attenuates activation of initiator (casp-9) and effector caspases (casp-3/casp-7) and PARP in UVR-exposed HaCaT keratinocytes
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Alterations in dopamine metabolism by intraperitoneal ethanol in rats selected for high and low ethanol preference: A 3-methoxytyramine study
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Integration of speech enhancement and coding techniques
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Changes in foot pressure on the ground during mae-geri kekomi (front kick) in karate athlete - case study
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Experimental determination of critical conditions for hydrogen-air detonation propagation in partially confined geometry
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Prediction of the structures of proteins with the UNRES force field, including dynamic formation and breaking of disulfide bonds
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The investigation of the effects of counterions in protein dynamics simulations
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Investigation of OSL signal of resistors from mobile phones for accidental dosimetry
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Analysis of TL and OSL kinetics of lithium aluminate
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Analysis of experimental and simulated vibrational spectra for the antiferroelectric liquid crystal 12OBBB1M6
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Processing and characterization of reinforced polyethylene composites made with lignocellulosic fibres isolated from waste plant biomass such as hemp
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Soft modes of the dielectric response in the twist–bend nematic phase and identification of the transition to a nematic splay bend phase in the CBC7CB dimer
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Macroscopic biaxiality and electric-field–induced rotation of the minor director in the nematic phase of a bent-core liquid crystal
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Density Functional Theory Studies on Ir Spectra of the Triphenylene Derivatives. A Scaled Quantum Mechanical Force Field Approach
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Distortions in structures of the twist bend nematic phase of a bent-core liquid crystal by the electric field
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New photocatalyst for decomposition of humic acids in photocatalysis and photo-Fenton processes
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Photocatalytic Removal of Phenol Under UV Irradiation on WO x –TiO2 Prepared by Sol–Gel Method
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Design of the setup for testing optical telemetry ranging including turbulence simulator for the Earth-to-satellite communication link
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Prevalence of insomnia in Poland — results of the National Health Interview Survey
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Steady magnetohydrodynamic flow in a diverging channel with suction or blowing
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Spikes removal in surface measurement
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Generation and stability of N-phenacyl-4-R-pyridinium ylides in silicon polypodands
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