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Search results for: REAL ESTATE
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Electric-field-induced magnetic quadrupole moment in the ground state of the relativistic hydrogenlike atom: Application of the Sturmian expansion of the generalized Dirac-Coulomb Green function
PublicationStosując rozwinięcie sturmowskie uogólnionej funkcji Greena-Diraca-Coulomba, znaleziono wyrażenie analityczne dla magnetycznego momentu kwadrupolowego, indukowanego przez zewnętrzne słabe, stałe, jednorodne pole elektryczne w stanie podstawowym relatywistycznego atomujednoelektronowego.
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Seeking the Factors Predisposing to Local Skin Inflammatory State Development in Children with Type 1 Diabetes (T1DM) Treated with Continuous Subcutaneous Insulin Infusion (CSII)
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Electric and magnetic dipole shielding constans for the ground state of the relativistic hydrogen-like atom: Application of the Sturmian expansion of the generalized Dirac-Coulomb Green function
PublicationStosując rozwinięcie sturmowskie funkcji Greena-Diraca-Coulomba, znaleziono wyrażenie analityczne dla stałych ekranowania elektrycznego i magnetycznego relatywistycznego atomu wodoropodobnego w stanie podstawowym.
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On the complex formation of iron(III) bromide in the space-demanding solvent N,N'-dimethylpropyleneurea and the structure of the trisbromoiron(III) complex i solution and crystalline state
PublicationPrzeprowadzono badania kalorymetryczne równowag kompleksów koordynacyjnych jonu żelaza(III) z jonami bromkowymi w DMPU. Stwierdzono, że w DMPU powstają trzy: mono-, di- i tribromkowe kompleksy żelaza(III) a ich powstawanie jest uwarunkowane zmianą entropii. Badania krystalograficzne dowiodły, że FeBr3 w roztworze DMPU ma konfigurację płaskiego trójkąta równobocznego, żadna cząsteczka rozpuszczalnika nie jest związana z jonem metalu,...
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Redox State Sensitive Spectroscopy of the Model Compound [(H-dcbpy)(2)Ru-II(NCS)(2)](2-) (dcbpy=2,2 '-Bipyridine-4,4 '-dicarboxylato)
PublicationThe charge transfer reaction mechanism in a ruthenium polypyridine model complex with isothiocyanato ligands, i.e., [(H-dcbpy)(2)Ru(NCS)(2)](2-) 2Bu(4)N(+) (Ru2H) (dcbpy = 2,2'-bipyridine-4,4'-dicarboxylato), has been investigated by combining UV-vis absorption, resonance Raman spectroscopy, and electrochemical methods. Understanding the photophysics of light-harvesting complexes of this class is an indispensable prerequisite to...
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Financial Consequences of the Introduction of the Fit For 55 on the Example of Poland
PublicationIn Europe and in Poland, there is a growing conviction that climate action is a necessity. When creating long-term strategies or making current decisions, companies are increasingly taking into account issues related to sustainable development and reducing CO2 emissions. Following the signing of the Paris Agreement in 2015, countries around the world pledged to reduce greenhouse gas emissions by 2050 so that the average temperature...
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A new model of fuel spray shape at early stage of injection in a marine Diesel engine
PublicationIn the cylinders of a marine diesel engine, self-ignition occurs in very shortly time after the fuel injection into the combustion chamber. Therefore, the paper present was to develop a model of diesel fuel spray for the early stage of fuel spray for in marine diesel engine. There were taken into consideration the main aspects technical such as nozzle diameter of marine engine injector and backpressure in combustion chamber. In...
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Design and computational fluid dynamics analysis of the last stage of innovative gas-steam turbine
PublicationResearch regarding blade design and analysis of flow has been attracting interest for over a century. Meanwhile new concepts and design approaches were created and improved. Advancements in information technologies allowed to introduce computational fluid dynamics and computational flow mechanics. Currently a combination of mentioned methods is used for the design of turbine blades. These methods enabled us to improve flow efficiency...
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Effect of slag coal ash and foamed glass on the mechanical properties of two-stage concrete
PublicationTwo-stage concrete (TSC) is known by various names such as colcrete, Polcrete, preplaced aggregate concrete and prepacked concrete. It is different from traditional concrete in two fundamental ways, namely method of construction and mix proportion. Two-stage concrete (TSC) is defined as firstly, coarse aggregates are placed into the formwork and grout is applied to fill in the between coarse aggregate particles voids. Secondly,...
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Evaluation of Mechanical Properties of Two-Stage Concrete and Conventional Concrete Using Nondestructive Tests
PublicationDifferent types of concrete mixtures are used as building materials. The manufacturing process of two-stage concrete (TSC) differs from that of conventional concrete. This study investigated conventional mechanical properties derive empirical relations for estimation of the mechanical parameters of TSC and conventional concrete mixtures. TSC was used to prepare 216 specimens and conventional concrete was used to prepare 108 specimens...
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Analysis of Validation and Simplification of Timber-Frame Structure Design Stage with PU-Foam Insulation
PublicationThe transition from experimental studies to the realm of numerical simulations is often necessary for further studies, but very difficult at the same time. This is especially the case for extended seismic analysis and earthquake-resistant design. This paper describes an approach to moving from the experimental testing of an elementary part of a wood-frame building structure to a numerical model, with the use of a commercial engineering...
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Design-Oriented Two-Stage Surrogate Modeling of Miniaturized Microstrip Circuits with Dimensionality Reduction
PublicationContemporary microwave design heavily relies on full-wave electromagnetic (EM) simulation tools. This is especially the case for miniaturized devices where EM cross-coupling effects cannot be adequately accounted for using equivalent network models. Unfortunately, EM analysis incurs considerable computational expenses, which becomes a bottleneck whenever multiple evaluations are required. Common simulation-based design tasks include...
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Influence of Two-Stage Anodization on Properties of the Oxide Coatings on the Ti–13Nb–13Zr Alloy
PublicationThe increasing demand for titanium and its alloys used for implants results in need of such innovative surface treatment that may jointly increase corrosion resistance and biocompatibility, and demonstrate antibacterial protection at no cytotoxicity. The purpose of this research was to characterize the effect of two-stage anodization, performed for 30 min in phosphoric acid, at the presence of hydrofluoric acid in the second stage....
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Prognostic value of stage IV neuroblastoma metastatic immunophenotype in the bone marrow: preliminary report
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Enhancing human performance in ship operations by modifying global design factors at the design stage
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Stage of liver fibrosis in patients with congenital bleeding disorders and infected with hepatitis C virus
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Mental health predictors of medical staff in the early stage of COVID-19 pandemic in Poland.
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Influence of H2S on degradation of 9Cr-1Mo steel in advanced stage of metal dusting process
PublicationPrzedstawiono wyniki badań stali 9Cr-1Mo w zaawansowanym stadium procesu pylenia metalu po 10 latach eksploatacji w piecu rafineryjnej instalacji platformingu CCR, przeprowadzonych w celu podjęcia decyzji o dozowaniu związków siarki do wsadu instalacji. Na podstawie długotrwałej ekspozycji próbek stali w 600C w mieszaninie wodoru i siarkowodoru wykazano, że siarka może być powodem procesów wpływających niekorzystnie na stan materiału...
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Treatment of high-quality groundwater by means of one-stage filtration on active filtration beds
PublicationPrzeprowadzone badania pilotowe uzdatniania wody podziemnej wysokiej jakości, wykazały, że wody o niewielkich stężeniach żelaza (< 0,6 mgl) i manganu (<0,1 mg/l) można uzdatniać stosując napowietrznie i jednostopniową filtrację, w układzie zamkniętym, przez aktywne złoża filtracyjne. Wszystkie przebadane złoża (jednowarstwowe z piasku kwarcowego; dwuwarstwowe z piasku kwarcowego i piroluzytu oraz trzywarstwowe z antracytu, piasku...
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Introducing Bentonite into the Environment in the Construction Stage of Linear Underground Investment Using the HDD Method
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Nowoczesne metody termochemicznej konwersji biomasy w paliwa gazowe, ciekłe i stałe
PublicationWykorzystanie biomasy do produkcji ciepła w procesach bezpośredniego spalania lub współspalania z węglem, polegające na konwersji zawartej w niej energii chemicznej związków węgla, wodoru i tlenu w energię cieplną w kotłach, jest jednocześnie najtańszym, lecz - zdaniem wielu ekspertów - najmniej efektywnym i ekonomicznie najmniej opłacalnym rozwiązaniem. W przypadku łącznej produkcji energii cieplnej i elektrycznej w elektrociepłowniach...
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Design of highly linear tunable CMOS OTA using a linearizing differentialpair in the output stage.
PublicationW pracy przedstawiono analityczną metodę projektowania wzmacniaczy transkonduktancyjnych CMOS o bardzo dobrej liniowości. Praca zawiera również wyniki symulacji pełnej wersji zaprojektowanego układu otrzymane przy użyciu symulatora SPICE.
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Vessel Energy Requirement Prediction from Acceleration Stage Towing Tests on Scale Models
PublicationOne of the most crucial tasks for naval architects is computing the energy required to meet the ship’s operational needs. When predicting a ship’s energy requirements, a series of hull resistance tests on a scale model vessel is carried out in constant speed stages, while the acceleration stage measurements are ignored. Another important factor in seakeeping analysis is the ship’s hydrodynamic added mass. The second law of dynamics...
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Kierunki rozwoju materiałów kompozytowych na wypełnienia stałe jako alternatywy amalgamatów stomatologicznych
PublicationOmówiono nowe wypełnienia w formie materiałów kompozytowych z nanowypełnieniami. Dokonano analizy właściwości tych materiałów w porównaniu z klasycznymi amalgamatami.
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On a risk-based method for safety assessment of a ship in critical conditions at the preliminary design stage.
PublicationW pracy przedstawiono wybrane rezultaty badań na temat metody oceny bezpieczeństwa statków w warunkach krytycznych, na etapie projektu wstępnego. Podano główne założenia nowoczesnego podejścia do oceny bezpieczeństwa statków. Przedstawiono opis metody do projektowania statków dla bezpieczeństwa, w warunkach krytycznych. Opisano główne elementy modelu obliczeniowego. Podano wybrane wyniki obliczeń. Opisano propozycje dalszych badań.
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Wpływ wydarzeń i inwestycji na potencjał rozwojowy metropolii nadmorskich in statu nascendi
PublicationArtykuł opisuje wydarzenia masowe i programy przekształceń przestrzennych w wybranych europejskich metropoliach nadmorskich in statu nascendi, jak również ich wpływ na potencjał rozwojowy tych metropolii. Nadmorskie obszary metropolitalne, z uwagi na szczególne uwarunkowania, są szczególnie predysponowane do organizacji sportowych i kulturalnych wydarzeń, zwłaszcza tych związanych z morską tożsamością. Jak pokazują analizy przeprowadzone...
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Studenckie Staże Zawodowe - Analiza Procesu Kwalifikacji w Kontekście Dopasowania Człowiek - Organizacja
PublicationProces kwalifikacji studentów na staże zawodowe ma charakter intuicyjny, główną rolę odgrywają w nich studenci oraz pracodawcy - oferenci staży. Skuteczność procesu można pokazać poprzez analizę sytuacji krytycznych. Artykuł omawia sytuacje, jakie pojawiły się w dwóch edycjach kwalifikowania na staże zawodowe. Do analizy procesu zastosowano dwie koncepcje teoretyczne: model ASA oraz dopasowanie organizacyjne, stosowane w doborze...
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Deep CNN based decision support system for detection and assessing the stage of diabetic retinopathy
PublicationThe diabetic retinopathy is a disease caused by long-standing diabetes. Lack of effective treatment can lead to vision impairment and even irreversible blindness. The disease can be diagnosed by examining digital color fundus photographs of retina. In this paper we propose deep learning approach to automated diabetic retinopathy screening. Deep convolutional neural networks (CNN) - the most popular kind of deep learning algorithms...
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Multiple output second-generation current conveyor utilizing high frequency output stage
PublicationIn this paper a multiple output second-generation current conveyor (MOCCII) is presented. The main advantage of the proposed general circuit architecture over a typical structure, well known in the literature, is the use of a high passband multiple output current mplifier block instead of cascaded current mirrors. It gives similar frequency responses for all the outputs of the current conveyor and also maintains simplicity of the...
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Novel method of initiation stage of stress corrosion cracking monitoring with respect to marine constructions
PublicationKorozja konstrukcji morskich i jednostek pływających stanowi bardzo ważny problem w odniesieniu do aspektów bezpieczeństwa, gdyż w całym okresie eksploatacji narażone są na działanie bardzo agresywnego środowiska i innych czynników eksploatacyjnych. W rezultacie prowadzi to do niespodziewanych kolizji i wypadków. Praca przedstawia zastosowanie dynamicznej elektrochemicznej spektroskopii impedanycjnej (DEIS) do badania inicjacji...
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Continuum wave functions for estimating the electric dipole moment: Calculation based on a multiconfiguration Dirac-Hartree-Fock approximation
PublicationThe multiconfiguration Dirac-Hartree-Fock method is employed to calculate the continuum electron wave functions, which are then used to estimate their contribution to the atomic electric dipole moment (EDM) of 129Xe. The EDM arises from (P,T)-odd electron-nucleon tensor-pseudotensor and pseudoscalar-scalar interactions, the nuclear Schiff moment, the interaction of the electron electric dipole moment with nuclear magnetic moments,...
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The use of thermal imaging camera to estimate velocity profiles based on temperature distribution in a free convection boundary layer
PublicationThis work describes an attempt to assess whether the temperature field from a thermal imaging camera can be converted into a velocity field with an accuracy sufficient for qualitative conducting or describing the phenomenon, i.e. when the Navier-Stokes, Fourier-Kirchhoff and continuity equations are mutually coupled. The consequence of this link between temperature fields and velocity is the possibility to formulate the hypothesis...
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Structural Change in New Member States (1995–2005): Shift–Share Analysis of Productivity Growth and its Determinants
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Dipole-bound anions supported by charge-transfer interaction: valence- and dipole-bound anionic states of H3N→BF3
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MODELLING OF TOXIC COMPOUNDS EMISSION IN MARINE DIESEL ENGINE DURING TRANSIENT STATES AT VARIABLE PRESSURE OF FUEL INJECTION
PublicationTransient states are an important part of the spectrum of engine loads, especially the traction engines. In the case of marine diesel engines, transient states are of particular importance in reducing the analysis of motion units for special areas and maneuvering in port, the participation of transient states in the load spectrum significantly increases, also, the emission of toxic compounds from this period increases proportionally....
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Do bacteria isolated from ICU patients ‘ESKAPE’ antibiotic treatment? In vitro susceptibility of the Enterobacteriaceae family to tigecycline
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Central and Eastern European States from an International Perspective: Economic Potential and Paths of Participation in Global Value Chains
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Alternatywna metoda oceny bezpieczeństwa statków w stanie uszkodzonym. Gotowość systemu statek w analizie ryzyka
PublicationW pracy przedstawiono elementy związane z oceną gotowości systemu statek w stanie uszkodzonym. Zdefiniowano pojęcie gotowości. Przedstawiono system bezpieczeństwa transportu morskiego i statków, w tym system bezpieczeństwa statku w stanie uszkodzonym. Opisano wybrane elementy analizy ryzyka, w tym te dotyczące obliczania i oceny ryzyka. Przedstawiono przykładowe drzewo udziału w ryzyku. Opisano też problemy związane z ocena gotowości...
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Quantum key distribution based on private states: Unconditional security over untrusted channels with zero quantum capacity
PublicationIn this paper, we prove unconditional security for a quantum key distribution (QKD) protocol based on distilling pbits (twisted ebits) from an arbitrary untrusted state that is claimed to contain distillable key. Our main result is that we can verify security using only public communication-via parameter estimation of the given untrusted state. The technique applies even to bound-entangled states, thus extending QKD to the regime...
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Structural change in New Member States (1995-2005): shift-share analysis of productivity growth and its determinants
PublicationThe chapter focuses on the latest developments in ten New MemberStates (presented vis-à-vis EU-15countries), seen from the perspective of structural change and quality upgrading of their economic structures. In particular, recently released disaggregated labor statistics are used,allowing to analyse the process of labor reallocation and productivitychanges associated with inter-and intra-industrystructural change. Since the mid-1990s...
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Electronically Excited States in Solution via a Smooth Dielectric Model Combined with Equation-of-Motion Coupled Cluster Theory
PublicationWe present a method for computing excitation energies for molecules in solvent, based on the combination of a minimal parameter implicit solvent model and the equation-of-motion coupled-cluster singles and doubles method (EOM-CCSD). In this method, the solvent medium is represented by a smoothly varying dielectric function, constructed directly from the quantum mechanical electronic density using only two tunable parameters. The...
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Novel Adaptive Method for Data Streams Allocation Based on the Estimate of Radio Channel Parameters in Heterogeneous WBAN Network
PublicationThe new adaptive method for data streams allocation in heterogeneous Wireless Body Area Networks and meas-urement equipment is presented. The results obtained using the developed method compared with the selected algorithms likely to be used in those networks. The pro-posed adaptive data streams allocation method based on radio channel parameters makes it even twice as efficient to use in terms of resources usage in a WBAN heterogeneous...
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Using Statistical Methods to Estimate The Worst Case Response Time of Network Software Running on Indeterministic Hardware Platforms
PublicationIn this paper we investigate whether the statistical Worst Case Execution Time (WCET) estimation methods devised for embedded platforms can be successfully applied to find the Worst Case Response Time (WCRT) of a network application running on a complex hardware platform such as a contemporary commercial off-the-shelf (COTS) system. Establishing easy-to-use timing validation techniques is crucial for real-time applications and...
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Poverty and social exclusion in the transition Baltic States during the implementation of the European Union Lisbon Strategy - comparative analysis
PublicationThe problem of poverty and social exclusion in the Baltic States generates serious social, economic and political consequences. The scope of the analysis includes primarily the scale and structure of poverty and social exclusion in the Baltic Region in the years 2004-2010 in the context of the Lisbon Strategy of the European Union. The results show that during the transition and implementation of the Lisbon Strategy, the problem...
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Application of semi-Markov processes for evaluation of diesel engines reliability with regards to diagnostics
PublicationThe paper presents semi-Markov models of technical state transitions for diesel engines, useful for determination of their reliability, as a result of the conducted statistical empirical studies. Interpretation of technical states provided for this sort of engines refers to ship main engines, i.e. engines employed in propulsion systems of sea-going ships. The considerations recognize diesel engine as a diagnosed system (SDN), of...
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Magnetic field-induced electric quadrupole moment in the ground state of the relativistic hydrogen-like atom: Application of the Sturmian expansion of the generalized Dirac-Coulomb Green function
PublicationStosując rozwinięcie sturmowskie funkcji Greena-Diraca-Coulomba, znaleziono wyrażenie analityczne dla elektrycznego momentu kwadrupolowego, indukowanego przez zewnętrzne pole magnetyczne w relatywistycznym atomie wodoropodobnym w stanie podstawowym. Wykazano, że jest to efekt czysto relatywistyczny.
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A structural study of the hydrated and the dimethylsulfoxide, N, N´-dimet-hylpropyleneurea, acetonitryle, pyridine and N,N-dimethylthioformamide solvated nickel(II) ion in solution and solid state.
PublicationOznaczono strukturę w stanie stałym i ciekłym solwatowanego jonu niklu(II) w rozpuszczalnikach o różnych właściwościach donorowych: w wodzie, dimetylo-sulfotlenku, N,N`-dimetylopropylomoczniku, acetonitrylu, pirydynie i N,N-di-metylotioformamidzie. Stwierdzono, że nikiel(II) tworzy przede wszystkim sześciokoordynacyjne solwaty (woda, acetonitryl, DMTF). Jako solwat pięciokoordynacyjny istnieje tylko w dimetylopropylomoczniku....
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Comparison of Cu1.3Mn1.7O4 spinels doped with Ni or Fe and synthesized via wet chemistry and solid-state reaction methods, designed as potential coating materials for metallic interconnects
PublicationThe influence of the method applied to synthesize Cu-Mn-O spinel was evaluated. The methods selected for the investigation were EDTA gel processes and solid-state reaction synthesis. From the obtained powders, sinters were prepared and assessed in terms of their properties as potential coating materials. Additionally, the influence of Ni and Fe dopants was evaluated. The results show that the EDTA gel processes method seems to...
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Wpływ stanu warstwy wierzchniej na mikrostrukturę i właściwości korozyjne stopu SUPERSTON = Influence of the state of surface layer on microstructure and corrosion properties of SUPERSTON alloy
PublicationW artykule przedstawiono rezultaty nadtapiania laserowego w warunkach kriogenicznych stopu SUPERSTON. Dokonano oceny mikrostruktury powierzchni i przekroju stopu SUPERSTON po obróbce laserowej. Określono właściwości stopu, które porównano ze stanem powierzchni po nadtapianiu oraz nadtapianiu i szlifowaniu.
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Detection of Water on Road Surface with Acoustic Vector Sensor
PublicationThis paper presents a new approach to detecting the presence of water on a road surface, employing an acoustic vector sensor. The proposed method is based on sound intensity analysis in the frequency domain. Acoustic events, representing road vehicles, are detected in the sound intensity signals. The direction of the incoming sound is calculated for the individual spectral components of the intensity signal, and the components...