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Search results for: PAH (WWA)
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Enzymatic Activity and Content of Polycyclic Aromatic Hydrocarbons (PAHs) in Soils under Low-Stack Emission in Lublin
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Meat products Brassica exploiting anticarcinogenic potential of cabbage phytochemicals: Polish path to bio-inspired foods
PublicationBadania populacyjne ostatnich dwóch dziesięcioleci wskazują na sposób odżywiania jako jeden z głównych czynników zagrożenia chorobami cywilizacyjnymi, z nowotworami włącznie. W przypadku chorób nowotworowych głównym elementem diety sprzyjającej kancerogenezie jest czerwone mięso. Ze względu na wartość odżywczą i powszechność spożycia produktów mięsnych, poprawienie ich wartości żywieniowej staje się problemem o istotnym znaczeniu...
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The Use of Different Modes of Post-Activation Potentiation (PAP) for Enhancing Speed of the Slide-Step in Basketball Players
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Experimental study on the feasibility of alternative materials for tilting pad thrust bearings operating in transition to mixed friction
PublicationIn hydrodynamic bearings traditional bearing alloys: Babbitts and bronzes are most frequently utilized. Polymer sliding layers are sometimes applied as a valuable alternative. Hard diamond-like carbon (DLC) coatings, which are also considered for certain applications may show some advantages, as well. Although material selection is of secondary importance in a full film lubrication regime it becomes important in mixed friction...
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Autonomous port management based AGV path planning and optimization via an ensemble reinforcement learning framework
PublicationThe rapid development of shipping trade pushes automated container terminals toward the direction of intelligence, safety and efficiency. In particular, the formulation of AGV scheduling tasks and the safety and stability of transportation path is an important part of port operation and management, and it is one of the basic tasks to build an intelligent port. Existing research mainly focuses on collaborative operation between...
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A new quantum-inspired approach to reduce the blocking probability of demands in resource-constrained path computation scenarios
PublicationThis article presents a new approach related with end-to-end routing, which, owing to quantum-inspired mecha-nisms of prediction of availability of network resources, results in improved blocking probability of incoming requests to establish transmission paths. The proposed scheme has been analyzed for three network topologies and several scenarios of network load. Obtained results show a significant (even twofold) reduction of...
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Study of the Operation of Synchronous Generator Voltage Regulator During the Creation of Post Blackout Start-up Path
PublicationThis paper presents the influence of automatic voltage regulator (AVR) of synchronous generator on the process of creation of post black-out start-up path. Two elements of AVR have a significant impact on this process: underexcitation limiter (UEL) and load compensation (LC). The authors present a theoretical investigation and simulation results that illustrate how the mentioned elements of AVR affect voltage levels in a power...
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Tilting pad thrust bearing with novel material selection - experimental comparison of low and medium speed operation
PublicationThe advances in material engineering led to the development of hard carbon based coatings applied in numerous applications in order to prevent or minimize wear of the parts in contact. With Triondur® coatings, the bearing company Schaeffler has succeeded in halving the friction losses in the valve trains of passenger cars. The coatings are optimized for high abrasive wear protection and low sliding friction moments. Altogether...
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Herbaria i florilegia od XV do XVIII wieku ze zbiorów PAN Biblioteki Gdańskiej
PublicationPublikacja przedstawia wstępną analizę ilości i zawartości zespołu botanicznych druków tekstowych i graficznych, znajdujących się w historycznych zbiorach PAN Biblioteki Gdańskiej. W tekście uwzględniono także informacje o rozproszonej spuściźnie gdańskiej rodziny Breyne, znajdującej się obecnie w Forschungsbibliothek Gotha (Niemcy) oraz w Brenthurst Library w Johannesburgu (RPA), w tym o kolekcji 189 ilustracji botanicznych sióstr...
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Contamination of Runoff Water at Gdańsk Airport (Poland) by Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyls (PCBs)
PublicationAirport runoff can contain high concentrations of various pollutants, in particular polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs), the environmental levels of which have to be monitored. Airport runoff water samples, collected at the Gdańsk-Rębiechowo Airport from 2008 to 2009, were analysed for PAHs and PCBs by gas chromatography. The aromatic fractions were separated by liquid-liquid extraction...
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Homogeneity study of candidate reference material (contaminated soil) based on determination of selected metals, PCBs and PAHs
PublicationReference materials (RMs) are an indispensable part of QA/QC system and have played a critical role in the continual expansion of analytical capabilities of the analytical laboratories. The homogeneity study of the candidate for reference material is essential for the quality of reference material (certified reference material) used in quality assurance activities. The homogeneity study of candidate for reference materials of contaminated...
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Fragment prywatnego księgozbioru gdańskiego kupca George'a Tönnigesa zachowany w zbiorach Biblioteki Gdańskiej PAN
PublicationIn the present holdings of the Gdańsk Library of the Polish Academy of Sciences beside the historical book collections once belonging to Gdańsk patricians (e.g. J. Uphagen, M. Hanow, W. Schlieff and A. Rosenberg), there are remains of a less known private book collection belonging in the 18th century to George Tönniges, a representative of the Gdańsk patriciate. On the one side, these several prints, fortunately survived up till...
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Methods of determination of C coefficient for period of rolling vessel in calm water for example of pax cargo ship
PublicationThis article presents a different approach to calculate the C coefficient needed to determine the period of own rolling vessel in calm water. The C coefficient is usually adopted as the approximate value from the available literature, usually depending on the type of vessel, and less dependent on the loading condition. In experimental studies of marine properties (seakeeping) often have a problem with the selection of the correct...
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Crystallization kinetics study of dynamically vulcanized PA6/NBR/HNTs nanocomposites by nonisothermal differential scanning calorimetry
PublicationInvestigation of crystallization behavior and kinetics of thermoplastic elastomer nanocomposites was the subject of limited works because of complexities associated with semiexperimental modeling of such phenomenon in a system containing components having completely different behavior in the molten state. Nonisothermal crystallization kinetics of dynamically vulcanized PA6/NBR/HNTs thermoplastic elastomer nanocomposites was mathematically...
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Design of Highly Selective Dual Band Band Stop Filter using Dual-Path Step Impedance Resonator
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Mechanical and structural behavior of high-strength low-alloy steel pad welded by underwater wet welding conditions
PublicationThe aim of the paper was to determine the metallurgical and mechanical behaviors of a high-strength low-alloy (HSLA) steel pad-welded specimen used in the structures of industrial and naval parts. Then to predict the metallurgical consequences (nature of the phases present) and the mechanical properties (hardness and impact strength) of the pad-welded steel obtained by underwater wet welding with different heat input values. The...
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Ionic Liquid Assisted Dissolution of Dissolved Organic Matter and PAHs from Soil Below the Critical Micelle Concentration
PublicationIncreased use and production of ionic liquids (ILs) may result in emissions into the environment. Particularly vulnerable are industrial areas and landfills where ILs are utilized and ultimately disposed of. This study investigates how IL contamination can affect soil properties and the sorption of pre-existing contaminants. The commonly used IL 1-methyl-3-octyl imidazolium chloride ([OMIM][Cl]) was added at various quantities...
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Dipole-driven dynamics for near-threshold electron/positron interactions with pyrimidinic DNA bases: a path to compound formations
PublicationCalculations are reported for electron and positron scattering from isolated cytosine and thymine, where the two pyrimidinic single-ring DNA bases, in the gas-phase at energies near the elastic threshold, they reveal the special features of the dipole-driven scattering states. All molecules examined exhibit, in fact, supercritical (>1.67 D) permanent dipoles which can therefore also support, below threshold, excited bound compound...
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INTER-LAYER SHARING OF BACKUP PATH CAPACITIES PROVIDING FAST SERVICE RECOVERY IN IP-MPLS/WDM NETWORKS
PublicationIn this paper, we investigate the issue of providing the transmission continuity in IP-MPLS/WDM networks in the presence of failures of nodes/links. Special focus is put on assuring fast restoration of flows affected after a failure in a scenario assuming sharing the backup path capacities in order to decrease the overall bandwidth consumption. In particular, we propose a new approach to inter-layer sharing of link capacity reserved...
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A dipole-driven path for electron and positron attachments to gas-phase uracil and pyrimidine molecules: a quantum scattering analysis
PublicationElectron and positron scattering processes in the gas-phase are analysed for uracil and pyrimidine molecules using a multichannel quantum approach at energies close to threshold. The special effects on the scattering dynamics induced by the large dipole moments in both molecules on the spatial features of the continuum leptonic wavefunctions are here linked to the possible bound states of the Rydberg-like molecular anions or ‘positroned’...
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Comparison of PCBs and PAHs levels in European coastal waters using mussels from the Mytilus edulis complex as biomonitors
PublicationMussels from the Mytilus edulis complex were used as biomonitors for two groups of organic pollutants: polychlorinated biphenyls (PCBs, congeners: 28, 52, 101, 118, 138, 153 and 180) and polycyclic aromatic hydrocarbons (PAHs, naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benz(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, indeno(1,2,3-cd)pyrene,...
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Towards More Realistic Probabilistic Models for Data Structures: The External Path Length in Tries under the Markov Model
PublicationTries are among the most versatile and widely used data structures on words. They are pertinent to the (internal) structure of (stored) words and several splitting procedures used in diverse contexts ranging from document taxonomy to IP addresses lookup, from data compression (i.e., Lempel- Ziv'77 scheme) to dynamic hashing, from partial-match queries to speech recognition, from leader election algorithms to distributed hashing...
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A New Method of the Load Compensation Use During Creation of Post Blackout Start-up Path in Power System
PublicationIn the paper a new method of effective use of load compensation during creation of post blackout start-up path is proposed. Theoretical assumptions and simulation results of an investigation are presented. An experiment performed in the Polish Power System is also described. This experiment proved that the method proposed by the authors is advisable. The method may be utilized by power system operators for power system restoration...
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pH-tunable equilibria in azocrown ethers with histidine moieties
PublicationEtery koronowe posiadające elektro- i fotoaktywne reszty azowe oraz ugrupowania z ruchliwymi protonami jak w grupie COOH histydyny charakteryzują się unikalnym, zależnym od pH, efektem stymulowania pozornej obecności/nieobecności ugrupowania azowego. Obserwowane różnice właściwości elektrochemicznych eterów azokoronowych z resztą N-acetylohistydyny lub resztami imidazolu uwidaczniają się przebiegiem chemicznej redukcji w silnie...
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Theoretical opportunities and actual limitations of pH gradient HPLC
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Determination of pKa by pH Gradient Reversed-Phase HPLC
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BEHAVIOUR OF TiO2/CHITOSAN DISPERSION AS A FUNCTION OF SOLUTION pH
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ZAS!pa. Zaspiańska Aktywna Społeczność! | projekty architektoniczne.
PublicationWystawa zawierałą wybrane prace studentów zrealizowane w ramach przedmiotu ‘Architectural Project’ (prowadzący: Agnieszka Kurkowska, współpraca: Bahaa Bou Kalfouni). Tematycznie projekty obejmowały trzy wybrane zadania: czasowy obiekt mieszkalny dla rezydenta/ artysty, przestrzeń spotkań, rozbudowę istniejącej siedziby Plamy. Dodatkowo przygotowano szeroko dostępną wersję wystawy on-line w przestrzeni wirtualnej.
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Starodruki oraz historia polskiej nauki w międzywojennym i powojennym Gdańsku – dwa projekty Biblioteki PG finansowane przez Ministerstwo Nauki i Szkolnictwa Wyższego
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Aneta Łuczkiewicz prof. dr hab. inż.
PeopleI conduct research on the adaptive abilities of microorganisms and their potential use in supporting technological processes. I combine environmental engineering with elements of biomedical and materials engineering. I am interested in innovative methods for detecting clinically significant microorganisms in aquatic environments (so-called wastewater-based epidemiology) and advanced and practical solutions in the water management...
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Geneza Komitetu Historii Nauki i Techniki PAN i jego związki z ówczesnym Zakładem Historii Nauki
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Exploring avian exposure to parent polycyclic aromatic hydrocarbons (PAHs): Using the common eider Somateria mollissima in a global context
PublicationCompared to other organic contaminants, birds are rarely studied for their exposure to polycyclic aromatic hydrocarbons (PAHs), mainly due to their effective metabolization of parent PAHs. However, as some studies suggest, exposure to PAHs may result in adverse health effects including decreased survival, especially following oil spills. In the present study, we analyzed samples from a sea duck, the common eider Somateria mollissima...
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Impact of Volcanic Eruptions on the Occurrence of PAHs Compounds in the Aquatic Ecosystem of the Southern Part of West Spitsbergen (Hornsund Fjord, Svalbard)
PublicationThe paper presents changes in concentration levels of dioxin-like compounds that can be observed over the course of four study seasons in water samples collected from the Arctic watershed of Svalbard. The conducted analysis involved anthropogenic and natural factors that may affect the concentration of PAHs in the study samples of water. An attempt is made to indicate the emission source of the compounds being deposited and to...
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TEKA Komisji Prawniczej PAN Oddział w Lublinie
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Kultura Słowian. Rocznik Komisji Kultury Słowian PAU
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Tien Tzu Hsueh Pao/Acta Electronica Sinica
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IWA Publishing
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Jakub Drewnowski dr hab. inż.
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Magdalena Gajewska prof. dr hab. inż.
PeopleMagdalena Gajewska (born June 1th 1968 in Gdańsk) in 1993 graduated Hydro-Engineering Faculty at Gdańsk University of Technology. At present she is an assistant professor in the Department of Water and Wastewater Technology at the Faculty of Civil and Environmental Engineering GUT. PhD (2001) and habilitation (2013) in the discipline of environmental engineering. In the 2016-2020 term, serves as Vice -dean for science. She...
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Managed care (Langhorne, Pa.)
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Folding kinetics of WW domains with the united residue force field for bridging microscopic motions and experimental measurements
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pH -Tunable equilibria in azocrown ethers with histidine moieties, Bioelectrochemistry
PublicationThe crown ethers with electro- and photoactive azo moieties containing substituents with mobile protons such as in the –COOH groups of histidine, show unique effect of pH switched on/off presence of the azo form. The differences observed for the electrochemical behavior of azocrown ethers with N-acetylhistidine and imidazole moieties reveal the interference of a chemical reduction pathway in strongly acidified solutions. This...
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The Role of Specific Side Groups and pH in Magnetization Transfer in Polymers
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Effect of pH on the Redox and Sorption Properties of Native and Phosphorylated Starches
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pH gradient high-performance liquid chromatography: theory and applications
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pH/Organic Solvent Double-Gradient Reversed-Phase HPLC
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The Role of pH in the Mechanism of .OH Radical Induced Oxidation of Nicotine
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Zinc(II) complexation by some biologically relevant pH buffers
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An Application Supporting Gastroesophageal Multichannel Intraluminal Impedance-pH Analysis
PublicationDue to a significant rise in the number of patients diagnosed with diseases of the upper gastrointestinal tract and the high cost of treatment, there is a need to further research on one of the most popular diagnostic tests used in this case – esophageal Multichannel Intraluminal Impedance and pH measurement. This may lead to finding new diagnostically relevant information, used to quicken and improve the diagnostic procedure....
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Wpływ pH na ługowanie zwiercin łupkowych roztworami wodnymi
PublicationZwierciny wytworzone podczas poszukiwania węglowodorów w formacjach łupkowych mogą zawierać metale ciężkie i radionuklidy. Mając na uwadze zagospodarowanie zwiercin, wykonano badanie ich ługowania metodą statyczną, stosując roztwory wodne o różnych pH regulowanych HNO3 i KOH. Charakterystykę chemiczną zwiercin z otworu z Basenu Bałtyckiego przeprowadzono metodą rentgenowskiej analizy fluorescencyjnej, natomiast...