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Photophysics of Ru(II) Dyads Derived from Pyrenyl-Substitued Imidazo[4,5-f][1,10]phenanthroline Ligands.
PublicationThe photophysics of a series of Ru(II) dyads based on the 2-(1-pyrenyl)-1H-imidazo[4,5-f][1,10]-phenanthroline ligand was investigated. The ability of these metal complexes to intercalate DNA and induce cell death upon photoactivation makes them attractive photosensitizers for a range of photobiological applications, including photodynamic therapy. In the present study, time-resolved transient absorption and emission spectroscopy...
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Rural domestic wastewater treatment in Norway and Poland: experiences, cooperation and concepts on the improvement of constructed wetland technology
PublicationThis article describes Norwegian and Polish experiences concerning domestic wastewatertreatment obtained during nearly 20 years of operation for constructed wetland (CW) systemsin rural areas and scattered settlements. The Norwegian CW systems revealed a highperformance with respect to the removal of organic matter, biogenic elements and faecalindicator bacteria. The performance of the Polish CW systems was unstable, and varied...
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Efficiency of European public higher education institutions: a two-stage multicountry approach
PublicationThe purpose of this study is to examine efficiency and its determinants in a set of higher education institutions (HEIs) from several European countries by means of non-parametric frontier techniques. Our analysis is based on a sample of 259 public HEIs from 7 European countries across the time period of 2001-2005. We conduct a two-stage DEA analysis (Simar and Wilson in J Economet 136:31-64, 2007), first evaluating DEA scores...
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Separation of toluene from gas phase using supported imidazolium ionic liquid membrane
PublicationInvestigation on utilization of supported ionic liquids membranes for hydrocarbon separation from the gas phase was performed. Properties of membrane phase, wettability of supports, swelling effects and solubility of toluene were taken into account. Toluene permeation rates were significantly higher than those of pure nitrogen, the selectivity in a range of 17–341 was satisfying for separation. Despite the increase of viscosity...
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Meconium analysis as a promising diagnostic tool for monitoring fetal exposure to toxic substances: Recent trends and perspectives
PublicationPrenatal exposure to toxic substances is an important public health problem. Many biological specimens obtained from the fetus or mother are used for biomonitoring. Each material reflects exposure in a specific time period and has different advantages and disadvantages in terms of accuracy, time window of detection and cost/benefit ratio. Recently, meconium has become the matrix of choice in toxicology screening for detecting exposure...
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Influence of metallic porous microlayer on pressure drop and heat transfer of stainless steel plate heat exchanger
PublicationThe experimental analysis of passive heat transfer intensification in the case of plate heat exchanger has been carried out. The metallic porous layer was created on the heat transfer surface of analyzed unit. The experiment was accomplished in two stages. In the first stage the commercial stainless steel gasketed plate heat exchanger was investigated, while in the second one – the identical heat exchanger but with the modified...
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Recommendations for Urban Freight Policy Development in Gdynia
PublicationThe purpose of this paper was to provide practical recommendations on how to develop Gdynia’s urban freight policy based on actual planning experience and characteristics of potential measures. Freight policy scheme was developed as a result of three interrelated factors: a) the general procedure of the urban freight planning, b) the city's current planning stage analysis and, c) characteristics of urban freight objectives and...
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Investigation of natural frequencies of axially loaded thin-walled columns
PublicationThe paper deals with correlation between natural frequencies of two steel thin-walled columns and the corresponding applied load. The structures are made of cold-formed lipped channel sections. The columns lengths were assumed to follow two buckling patterns – global flexural and flexural-torsional buckling. In the thicker structure two material models were considered – linearly-elastic and elastic-perfectly plastic. Numerical...
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Analytical applications and physicochemical properties of ionic liquid-based hybrid materials: A review
PublicationIonic liquids with their unique properties found so far numerous analytical applications. Among them ionic liquids immobilized on the surface or within the pores of a solid support were successfully utilized in extraction techniques dedicated to preconcentration of the analytes from food, environmental and biological samples. In this review we focus on comprehensive summarizing of available literature data on the examples of ionic...
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On Algorithm Details in Multibeam Seafloor Classification
PublicationRemote sensing of the seafloor constitutes an important topic in exploration, management, protection and other investigations of the marine environment. In the paper, a combined approach to seafloor characterisation is presented. It relies on calculation of several descriptors related to seabed type using three different types of multibeam sonar data obtained during seafloor sensing, viz.: 1) the grey-level sonar images (echograms)...
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Virtual spring damper method for nonholonomic robotic swarm self-organization and leader following
PublicationIn this paper, we demonstrate a method for self-organization and leader following of nonholonomic robotic swarm based on spring damper mesh. By self-organization of swarm robots we mean the emergence of order in a swarm as the result of interactions among the single robots. In other words the self-organization of swarm robots mimics some natural behavior of social animals like ants among others. The dynamics of two-wheel robot...
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A new tool for the evaluation of the analytical procedure: Green Analytical Procedure Index
PublicationA new means for assessing analytical protocols relating to green analytical chemistry attributes has been developed. The new tool, called GAPI (Green Analytical Procedure Index), evaluates the green character of an entire analytical methodology, from sample collection to final determination, and was created using such tools as the National Environmental Methods Index (NEMI) or Analytical Eco-Scale to provide not only general but...
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Influence of Fluid Compressibility and Movements of the Swash Plate Axis of Rotation on the Volumetric Efficiency of Axial Piston Pumps
PublicationThis paper describes the design of a swash plate axial piston pump and the theoretical models describing the bulk modulus of aerated and non-aerated fluids. The dead space volume is defined and the influence of this volume and the fluid compressibility on the volumetric efficiency of the pump is considered. A displacement of the swash plate rotation axis is proposed to reduce the dead space volume for small swash plate swing angles....
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Enhancement of the Magnetoresistance in the Mobility‐Engineered Compensated Metal Pt 5 P 2
PublicationThe magnetoresistance (MR) in nonmagnetic materials continues to be a fertile research area in materials science. The search for giant, positive MR has been limited to a rather small window of materials such as high-mobility semimetals in single-crystalline form. Here, the observation of a very large positive MR in metallic Pt5P2 in polycrystalline form is reported. The observations reveal that improvement of the crystallinity...
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By-Products from Food Industry as a Promising Alternative for the Conventional Fillers for Wood–Polymer Composites
PublicationThe present paper describes the application of two types of food-industry by-products, brewers’ spent grain (BSG), and coffee silverskin (ŁK) as promising alternatives for the conventional beech wood flour (WF) for wood–polymer composites. The main goal was to investigate the impact of partial and complete WF substitution by BSG and ŁK on the processing, structure, physicochemical, mechanical, and thermal properties of resulting...
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Wpływ struktur wsparcia na efektywność nauczania języka pisanego w środowisku e-learningowym
PublicationThe process of knowledge and language skills development during an online course can be very effective if student engagement in learning is achieved. This can be attained by introducing general and specific support mechanisms prior to the commencement of the course and during it. The former relates to the technological aspect, that is to familiarizing students with the functionalities of the virtual learning environment they will...
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Mechanism of hopping conduction in Be–Fe–Al–Te–O semiconducting glasses and glass–ceramics
PublicationElectrical properties of beryllium-alumino-tellurite glasses and glass–ceramics doped with iron ions were studied using impedance spectroscopy. The conductivity was measured over a wide frequency range from 10 mHz to 1 MHz and the temperature range from 213 to 473 K. The D.C. conductivity values showed a correlation with the Fe-ion concentration and ratio of iron ions on different valence states in the samples. On the basis of...
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Dispersive Micro‐Solid Phase Extraction of Selected Metals in Water and Food Samples Followed by ICP‐OES Analysis: Method Development, Analysis of Real Samples and Greenness Evaluation
PublicationMultiwalled carbon nanotubes (MWCNTs) are well-known adsorbents because of their high surface area, layered and hollow architecture, hydrophobicity, and multiple and easily accessible adsorption sites. In this study, MWCNTs were used for dispersive micro-solid-phase extraction of various metal chelates in environmental and food samples. Different parameters such as concentration of the chelating reagent, the sorbent dosage, the...
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Determination of flow properties of a serial connection of a pressure relief valve (C=6.2, b=0.38) and a silencer (C=1.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=3.3, b=0.40) and a silencer (C=3.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=6.4, b=0.45) and a silencer (C=7.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=2.0, b=0.11) and a silencer (C=3.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a directional control valve (C=2.4, b=0.26) and a silencer (C=1.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=4.4, b=0.42) and a silencer (C=1.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=5.3, b=0.38) and a silencer (C=3.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=7.3, b=0.49) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=6.2, b=0.38) and a silencer (C=3.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=5.3, b=0.38) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=3.3, b=0.40) and a silencer (C=1.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=5.7, b=0.32) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=6.4, b=0.45) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=5.5, b=0.37) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=6.2, b=0.38) and a silencer (C=3.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=5.5, b=0.37) and a silencer (C=3.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=5.3, b=0.38) and a silencer (C=7.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=5.7, b=0.32) and a silencer (C=1.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a directional control valve (C=2.1, b=0.14) and a silencer (C=1.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=4.4, b=0.42) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=6.2, b=0.38) and a silencer (C=7.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=5.7, b=0.32) and a silencer (C=3.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a directional control valve (C=2.0, b=0.11) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=3.3, b=0.40) and a silencer (C=3.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=3.3, b=0.40) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=2.8, b=0.25) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=5.3, b=0.38) and a silencer (C=3.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=5.5, b=0.37) and a silencer (C=1.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=4.4, b=0.42) and a silencer (C=3.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a directional control valve (C=2.4, b=0.26) and a silencer (C=6.8) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a directional control valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> DCV -> ambient atmosphere, (2) pressure...
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Determination of flow properties of a serial connection of a pressure relief valve (C=4.4, b=0.42) and a silencer (C=3.4) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...
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Determination of flow properties of a serial connection of a pressure relief valve (C=6.4, b=0.45) and a silencer (C=3.0) from changes in air pressure in a tank being emptied
Open Research DataThe aim of the study was to determine the flow properties of serial connection of pneumatic components.The experiments were to measure the pressure changes in a being emptied tank for a pressure relief valve and a silencer arranged in-line. Three test configurations were used: (1) being emptied tank -> PRV -> ambient atmosphere, (2) pressure source...