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Search results for: ART INSTALLATION
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Optimization of FFF Process Parameters by Naked Mole-Rat Algorithms with Enhanced Exploration and Exploitation Capabilities
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Wybrane informacje o rynku kart płatniczych w Polsce w latach 2003-2008
PublicationReferat podejmuje tematykę rozwoju rynku bankowości terminalowej w Polsce. Charakterystyce poddano istotę zjawiska. Zanalizowano krajowy rynek bankowości terminalowej, w oparciu o ilościowy stan kart płatniczych, a także dokonywanych transakcji bankomatowych (ilościowo i wartościowo). Zbadano stopień nasycenia rynku kartami płatniczymi i punktami, w których można korzystać z kart płatniczych ( bankomaty, punkty handlowo-usługowe)....
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Applied intelligence and knowledge-based systems: challenges, approaches, nad case studies - part 1
PublicationPrzeanalizowano najnowsze kierunki badawcze i rozwojowe w obszarze zastosowań sztucznej inteligencji i systemów opartych na wiedzy
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Chemical composition, antioxidant and anticancer effects of the seeds and leaves and indigo (polygonum tinctorium Ait.) Plant
PublicationSeeds and leaves of indigo (Polygonum tinctorium Ait.) plant were investigated and compared with another medicinal plant named prolipid for their properties such as chemical composition, antioxidant, and anticancer effects by Fourier transform infrared, three-dimensional fluorescence spectroscopy, and electrospray ionization-MS in negative mode. It was found that polyphenols, flavonoids, and flavanols were significantly higher...
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Fractional Calculus Evaluation of Hyaluronic Acid Crosslinking in a Nanoscopic Part of Articular Cartilage Model System
PublicationThis work presents a study of the mechanism of physical crosslinking of hyaluronic acid in the presence of common phospholipids in synovial joint organ systems. Molecular dynamic simulations have been executed to understand the formation of hyaluronan networks at various phospholipid concentrations. The results of the simulations suggest that the mechanisms exhibit subdiffusion characteristics. Transportation quantities derive...
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Urban Prototyping in CAVE Cooperation Between the Academy of Fine Arts in Gdansk and the Gdansk University of Technology
PublicationThe paper describes results of cooperation between the Passive Architecture Laboratory at the Academy of Fine Arts in Gdańsk and the Immersive 3D Visualization Lab at the Gdańsk University of Technology. The authors as the design supervisors (respectively for a team of architects and a team of IT specialists) present advantages and disadvantages of urban design with use of virtual reality.
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Trends in edible vegetable oils analysis. Part A. Determination of different components of edible oils - a review
PublicationPrezentowana publikacja przeglądowa omawia aktualne podejście do oznaczania związków zawartych w olejach roślinnych. W ciągu ostatniej dekady zwraca się zdecydowanie większą uwagę na dietę uwzględniając oleje i tłuszcze jako źródła zdrowej energii. Jednym z głównych problemów związanych z tłuszczami są reakcje utleniania, których konsekwencją może być znaczne obniżenie wartości odżywczych olejów roślinnych. Publikacja przedstawia...
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Process zone in the Single Cantilever Beam under transverse loading. - Part I: Theoretical analysis
PublicationSingle Cantilever Beam (SCB) specimen loaded with a transverse force parallel to the crack front is proposed for the analysis of crack propagation phenomena under mixed mode conditions. The stress redistribution in the adhesive layer in the vicinity of the crack front so as the beam deformation are estimated using a Timoshenko beam on elastic foundation model. This model emphasizes the Mode II contribution due to flexural beam...
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Bioaccumulation of Metals in Tissues of Marine Animals, Part I: the Role and Impact of Heavy Metals on Organisms
PublicationHeavy metals contribute to the anthropogenic contamination of marine ecosystems. Some of them are essential to the life processes of organisms; others are toxic, even at low concentrations. They penetrate organisms via food, respiratory pathways or the skin. The extent to which metals penetrate organisms is measured by the bioconcentration and bioaccumulation factors and also by their transport between organisms at different trophic...
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Performance of the PEM fuel cell module. Part 2. Effect of excess ratio and stack temperature
PublicationThe paper describes a fuel cell based system performance under different thermal conditions. The system could be fed with bottled hydrogen or with very high purity hydrogen obtained from reforming of methanol. The system is based on two fuel cell units (1.2 kW each, produced by Ballard Power Systems Inc. and called Nexa), DC/DC converter, DC/AC inverter, microprocessor control unit, load unit, bottled hydrogen supply system and...
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Effect of selective laser treatment on initiation of fatigue crack in the main part of an undercarriage drag strut
PublicationThis paper presents the results of material characterization and a fatigue test conducted for a laser-re-melted drag strut used in an aircraft landing gear. The drag strut was re-melted with a CO2 laser beam. Eight re-melted paths were made in the form of spiral lines along the axis of the drag strut. Next, the drag strut was subjected to variable loads on a testing machine simulating loads occurring when an aircraft lands. The...
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Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+
PublicationAn analysis was carried out for different thermodynamic cycles of power plants with air turbines. Variants with regeneration and different cogeneration systems were considered. In the paper, we propose a new modification of a gas turbine cycle with the combustion chamber at the turbine outlet. A special air by-pass system of the combustor was applied and, in this way, the efficiency of the turbine cycle was increased by a few points....
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On the production of electricity in Poland using a geothermal binary power plant - A thermodynamic overview - Part I
PublicationPoland has a significant potential of geothermal energy. However, the high-temperature sources that are needed to drive power plants are found in relatively few places. Therefore, the objective of this paper is to consider any location in the northern part of Poland as a possible place to build a binary power plant. A scientific research was confirmed the existence of an elevated temperature gradient in this region. The hot rocks...
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Distribution of pollutants in the Odra River system part II. Organic pollutants in Odra River water
PublicationW pracy przedstawiono wyniki oznaczeń zanieczyszczeń organicznych (pestycydy, lotne związki chlorowcoorganiczne, wielopierścieniowe węglowodory aromatyczne, chlorobenzeny, polichlorowane bifenyle) w próbkach wody zebranych w trakcie 8 Kampanii (w okresie 1997-2000) zorganizowanej w ramach Międzynarodowego Projektu Badań Dorzecza Rzeki Odry (IOP).
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CyberEmpathy: Magazine of Visual Communication and New Media in Art Science Humanities Design and Technology
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Tarih Kultur ve Sanat Arastirmalari Dergisi-Journal of History Culture and Art Research
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Laboratory station for research of the innovative dry method of exhaust gas desulfurization for an engine powered with residual fuel
PublicationContemporary methods of exhaust gas desulfurization in marine engines are all expensive methods (4-5 million euro). This is, among other reasons, due to the limited market audience, but primarily due to the monop-olized position of manufacturers offering fabrication and assembly of this type of marine ship installations. Proposed as part of a research project financed by the Regional Fund for Environmental Protection and Maritime...
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Novel therapeutic compound acridine–retrotuftsin action on biological forms of melanoma and neuroblastoma
PublicationPURPOSE: As a continuation of our search for anticancer agents, we have synthesized a new acridine-retrotuftsin analog HClx9-[Arg(NO2)-Pro-Lys-Thr-OCH3]-1-nitroacridine (named ART) and have evaluated its activity against melanoma and neuroblastoma lines. Both tumors develop from cells (melanocytes, neurons) of neuroectodermal origin, and both are tumors with high heterogeneity and unsatisfactory susceptibility to chemotherapies....
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Czy oprawa kursu jest ważniejsza od treści? Pomysł i żart
EventsOdpowiednio przygotowane materiały dodatkowe mogą być elementem humorystycznym, który pozytywnie wpływa na atmosferę współpracy nauczyciel–student, szczególnie w sytuacji weryfikacji zdobytej wiedzy (kolokwia, egzaminy).
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Shading, Dusting and Incorrect Positioning of Photovoltaic Modules as Important Factors in Performance Reduction
PublicationThe amount of solar radiation reaching the front cover of a photovoltaic module is crucial for its performance. A number of factors must be taken into account at the design stage of the solar installation, which will ensure maximum utilization of the potential arising from the location. During the operation of a photovoltaic installation, it is necessary to limit the shading of the modules caused by both dust and shadowing by trees...
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Dual inhibition of PI3K/Akt signaling and the DNA damage checkpoint in p53-deficient cells with strong survival signaling: implications for cancer therapy
PublicationOporność komórek nowotworowych na leki uszkadzjące DNA związana jest ściśle ze zdolnością do utrzymywania blok z fazie G2 cyklu komórkowego. Blok ten regulowany jest przez mechanizmy punktu kontrolnego G2/M oraz szlaki przeżycia komórkowego. W pracy badaliśmy rolę szlaku kinazy PI3K/Akt w funkcjonowaniu punktu kontrolnego cyklu komórkowego i wpływ na przeżycie komórek traktowanych lekiem przeciwnowotworowym - cisplatyną. Nasze...
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Electromodulation of fluorescence in hole-transporting materials for organic light-emitting diodes. Part II: Straburst amines
PublicationPraca jest kontynuacją artykułu, który został opublikowany wChem. Phys. vol. 256 (2000) s. 351-362. Zaobserwowano silne wygaszenie fluorescencji w dendrymerach aminowych zbudowanych na bazie trifenyloaminy. Efekt ten został przypisany rozpadowi stanów emitujących światło pod działaniem silnego pola elektrycznego.
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Electrochemical oscillations and bistability during anodic dissolution of vanadium electrode in acidic media—part I. Experiment
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Chloroacridine derivatives as potential anticancer agents which may act as tricarboxylic acid cycle enzyme inhibitors
PublicationThe chloroacridines affect biological forms of melanoma in different ways. Amelanotic (Ab) melanoma (with inhibited melanogenesis and higher malignancy) was particularly sensitive to the action of the chloroacridines. The Ab melanoma cells died through apoptosis and through death without caspase activation. Diminished activity of TAC enzymes was noticed among Ab melanoma cells together with ATP/NAD depletion, especially in the...
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What Triggers Us to Be Involved in Martial Arts? Relationships between Motivations and Gender, Age and Training Experience
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Regional effects of amphetamine, cocaine, nomifensine and GBR 12909 on the dynamics of dopamine release and metabolism in the rat brain
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Poor sensitization of 50-kHz vocalization response to amphetamine predicts rat susceptibility to self-administration of the drug
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γ-Butyrolactone-sensitive and -insensitive dopamine release, and their relationship to dopamine metabolism in three rat brain regions
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Effect of resveratrol analogue, DMU-212, on antioxidant status and apoptosis-related genes in rat model of hepatocarcinogenesis
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Transcriptome Changes in Three Brain Regions during Chronic Lithium Administration in the Rat Models of Mania and Depression
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A structure and design optimization of novel compact microscrip dual-band rat-race coupler with enhanced bandwidth
PublicationIn the letter, a topology of a novel compact wideband dual-band rat-race coupler has been presented along with its computationally efficient design optimization procedure. Reduction of the circuit size has been achieved by meandering transmission lines of the conventional circuit. At the same time, the number of independent geometry parameters has been increased so as to secure sufficient flexibility of the circuit, necessary in...
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Odporność kawitacyjna grubych powłok ochronnych CrC nanoszonych metodą niskociśnieniowego wyładowania łukowego (Arc-PVD)
PublicationReferat przedstawia analizę i metodę pokrywania powierzchni materiałów zastosowanych w turbinach parowych i śrubach okrętowych za pomocą CrC przy zastosowaniu metodę ARC-PVD. Celem jest podwyższenie trwałości powierzchni narażających na erozję wywołaną przez kawitację.
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Multistage Coupling of Eight Mistuned Bladed Disk on a Solid Shaft, Part 1 Free Vibration Analysis
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Instrumented end notched flexure - Crack propagation and process zonemonitoring Part II: Data reduction and experimental
PublicationA mode II instrumented end notched flexure three point bending (ENF) adhesion test is described. The adhesive joint consists of two aluminium alloy (AW7075-T6) plates bonded with a structural epoxy adhesive (Hysol EA 9395™). Strain gauges are attached to the outer surface (backface) of the substrates in the lengthwise direction to measure local surface strain during crack propagation. Simultaneously, load/displacement measurements...
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ENERGY ANALYSIS OF THE PROPULSION SHAFT FATIGUE PROCESS IN A ROTATING MECHANICAL SYSTEM PART III DIMENSIONAL ANALYSIS
PublicationThis article presents the third and last part of the problem of diagnosing the fatigue of marine propulsion shafts in terms of energy with the use of the action function, undertaken by the authors. Even the most perfect physical models of real objects, observed under laboratory conditions and developed based on the results of their research, cannot be useful in diagnostics without properly transferring the obtained results to the...
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Long-Term Impact of Wind Erosion on the Particle Size Distribution of Soils in the Eastern Part of the European Union
PublicationWind erosion is the leading cause of soil degradation and air pollution in many regionsof the world. As wind erosion is controlled by climatic factors, research on this phenomenon isurgently needed in soil and land management in order to better adapt to climate change. In thispaper, the impact of wind erosion on the soil surface in relation to particle size distribution wasinvestigated. Changes in percentage of sand, silt and...
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Electrochemical Synthesis of Polysaccharide-Protein Complexes. Part 1: Preliminary Studies on Apple Pectin-Albumin Complexes
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CCDC151 Mutations Cause Primary Ciliary Dyskinesia by Disruption of the Outer Dynein Arm Docking Complex Formation
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Electronics and telecommunications in Poland, issues and perspectives: Part III. Innovativeness, applications, economy, development scenarios, politics
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A comparison of indexing methods to evaluate quality of horticultural soils. Part II. sensitivity of soil microbiological indicators
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On the reaction of bis(phosphothioyl)disulfanes with hydroxamic acids, part I: Ionic versus radical reaction pathways
PublicationReaktywność disulfanów bisfosforotiowych jest mało poznana. Wiadomo, że wykazują one aktywność pestycydową związaną z inhibicją acetylocholinesterazy. Z kolei, kwasy hydroksamowe stosuje się jako efektywne środki do detoksykacji trucizn fosforoorganicznych. Zbadano reakcje soli kwasów benzohydroksamowych z elektrofilowymi disulfanami bisfosfonotiowymi. Badania prowadzono z użyciem disulfanów bisfosforo-, bisfosfono- i bisfosfinotiowych....
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Thermally stimulated currents in amorphous solids at mixed carrier recombination, Part I: Non-equilibrium approximation
PublicationPodano opis teoretyczny prądów termicznie stymulowanych dla przypadku mieszanej rekombinacji nośników ładunku, przy założeniu początkowego zapełnienia głębokich stanów pułapkowych oraz silnie nierównowagowego rozkładu nośników w aktywnych pułapkach. Otrzymane wyrażenia zweryfikowano za pomocą obliczeń numerycznych dla przypadku wykładniczego rozkładu pułapek.
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Development of an Oxide Layer on Al 6061 Using Plasma Arc Electrolytic Oxidation in Silicate-Based Electrolyte
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Inverse modeling for fast design optimization of small-size rat-race couplers incorporating compact cells
PublicationIn the paper, a framework for computationally-efficient design optimization of compact rat-race couplers (RRCs) is discussed. A class of hybrid RRCs with variable operating conditions is investigated, whose size reduction is obtained by replacing ordinary transmission lines with compact microstrip resonant cells (CMRCs). Our approach employs a bottom-up design strategy leading to the development of compact RRCs through rapid design...
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Electrochemical oscillations and bistability during anodic dissolution of vanadium elektrode in acidic media. part 1. Experiment
PublicationDynamiczne niestabilności, oscylacje prądowe i bistabilność obserwowane były podczas anodowego roztwarzania elektrody wanadowej w trakcie badań wykorzystujących techniki stało i zmienno prądowe. Analizowany był wpływ warunków eksperymentalnych jak: stężenia kwasu, temperatury itd. Badania pozwoliły stworzyć diagramy przedstawiające regiony występowania oscylacji i bistabilności.
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Biopolymers in designing modern antimicrobial medical materials. Part I. Biopolymer medical materials - collagen, chitosan
PublicationThe article is a review of the literature concerning the possible use of biopolymers for the preparation of dressings with antimicrobial activity. Authors show the potential of biopolymers: collagen and chitosan - which have the ability to immobilize and control the release of various active compounds - for providing the appropriate antibacterial, bacteriostatic and wound healing properties. Types of threats, for which the dressing...
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Verification of geotechnical numerical simulations by model tests using PIV technique. Part II Numerical Simulation
PublicationPrzedstawiono zakres i wyniki symulacji numerycznych stateczności fundamentów bezpośrednich posadowionych w sąsiedztwie kątowych ścian oporowych. Wyniki symulacji numerycznych zweryfikowano na podstawie wyników badań modelowych z uwzględnieniem techniki PIV przedstawionych w części I niniejszego artykułu. W obliczeniach numerycznych wykorzystano trzy kryteria wytrzymałości gruntu na ścinanie: Coulomba - Mohra, Matsuoki - Nokaiego...
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Mechanisms positioned in a neighbourhood of their singular positions - velocity amplification in the electromagnetic damping. Part 2. Numerical Verification
PublicationPraca prezentuje zagadnienia występujące podczas elektromagnetycznego tłumienia drgań układów mechanicznych. Analizowano zachowania układu ciągłego i jego drgania. Aby przyśpieszyć tłumienie, wprowadzono specjalny dwuramienny mechanizm umieszczony pomiędzy elementem drgającym i elementem tłumiącym drgania. Mechanizm ustawiony jest w pobliżu swojego ustawienia osobliwego. Aby określić potencjalny kierunek zmian prowadzący do poprawić...
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Thermodynamic Cycle Concepts for High-Efficiency Power Plants. Part B: Prosumer and Distributed Power Industry
PublicationAn analysis was carried out for different thermodynamic cycles of power plants with air turbines. A new modification of a gas turbine cycle with the combustion chamber at the turbine outlet has been described in the paper. A special air by-pass system of the combustor was applied, and in this way, the efficiency of the turbine cycle was increased by a few points. The proposed cycle equipped with an effective heat exchanger could...
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Evolution of magnetic and transport properties in (Cr1−xMnx)2AlC MAX-phase synthesized by arc melting technique
PublicationHerein we initiate a comeback to the arc melting technique to produce MAX-phase solid solutions. Bulk samples of (Cr1−xMnx)2AlC MAX-phase with X = 0, 0.025, 0.05 and 0.1 were synthesized and studied by means of X-ray diffractometry, scanning electron microscopy in combination with energy-dispersive X-ray spectroscopy. Samples were established to be homogeneous with an incorporation of Cr7C3, AlCr2 and Al2O3 secondary phases which...