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Wyniki wyszukiwania dla: DDF CURVE
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Zyskowność sektora bankowego a jego transformacja w wybranych krajach Bałkanów Zachodnich
PublikacjaOkres transformacji gospodarczej jest istotnym etapem zmian w gospodarce. Szczególnie istotnym z punktu widzenia gospodarki jako całości jest sektor bankowy i osiągane przez niego wyniki finansowe. Celem artykułu jest ocena zyskowności sektorów bankowych w okresie transformacji, na przykładzie wybranych krajów regionu Bałkanów Zachodnich w okresie 2001 - 2015. W celu zmierzenia zyskowności zastosowano cztery wskaźniki finansowe,...
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Preparation of matrix-free materials of volatile analytes based on the controlled decomposition of surface compounds: a new concept
PublikacjaW publikacji przedstawiono nową koncepcję wytwarzania bezmatrycowych materiałów odniesienia wykorzystującą związki powierzchniowe, które są chemicznie związane z powierzchnią nośnika (żelu krzemionkowego, szkła porowatego, pałeczek szklanych pokrytych żelem krzemionkowym, oraz włókna szklanego), które w określonych warunkach temperaturowych ulegają termicznemu rozkładowi lub przegrupowaniom chemicznym z uwolnieniem ściśle określonej...
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The Russian Federation in European Union Programmes
PublikacjaSince the early 1990s, the European Union has been supporting socio-economic transformations in the former Soviet Union states, including the Russian Federation. Initially, this assistance was provided in the framework of the TACIS Programme, offering long-term, non-repayable aid. In 1991–2006 Russia received EUR 2.7bn for the restructuring of the state enterprise sector, establishment of private companies, state administration...
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Przeciwdziałanie nielegalnej emigracji na granicy polsko-rosyjskiej w dobie członkostwa Polski w Unii Europejskiej
PublikacjaPrzeciwdziałaniu nielegalnej emigracji do państw Unii Europejskiej służą akty prawa unijnego i krajowego. Do najważniejszych unijnych aktów prawa należy zaliczyć: traktat o funkcjonowaniu Unii Europejskiej, program „Otwarta i bezpieczna Europa: realizacja założeń” oraz dyrektywy w sprawie przeciwdziałania nielegalnej migracji. Do polskich aktów prawnych należą ustawy: o cudzoziemcach, o udzielaniu cudzoziemcom ochrony na terytorium...
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Managing Quality Contests Based on Excellence Model at the Local Level. Selected Conditions and Problems – Case Study
PublikacjaThe aim of this article was to present characteristic phenomena accompanying competitions for quality awards based on the use of the organizational excellence models implemented at the regional level. Typical problems were identified, the understanding of which allows for a better use of the idea of excellence to raise the overall level of maturity of organizations aspiring to quality awards at every level. The results of self-assessment...
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Niezrywalne depozyty terminowe w świetle Bazylei III i polskich uregulowań prawnych
PublikacjaPropozycje Komitetu Bazylejskiego dotyczące miar płynnościowych (LCR i NSFR) zawierają wyrażone liczbowo, za pomocą wag nadzorczych, opinie o ryzyku płynności poszczególnych klas pasywów. Zgodnie z Basel 3, w sytuacji napięć płynnościowych brak jest istotnych różnic pomiędzy depozytami bieżącymi a lokatami terminowymi posiadającymi opcję zerwania. Korzystniejsze wagi nadzorcze otrzymują depozyty niezrywalne (czyli: prawdziwe lokaty...
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External Security Strategies of Belarus
PublikacjaUnder President Lukashenko, three Belarusian national security strategies have been announced: the first in 1995, the second in 2001 and the third in 2011. The first proposal, formulated after Lukashenko’s victory in the presidential elections in 1994, outlined Belarus as a neutral state, unbound to any military block in the absence of external enemies. The direction of the foreign policy pursued by the president of Belarus was...
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Dochody gospodarstw domowych i ich determinanty – zróżnicowanie regionalne w UE
PublikacjaCelem niniejszego opracowania jest ustalenie skali regionalnego zróżnicowania dochodów gospodarstw domowych w UE oraz korelacji pomiędzy wybranymi wielkościami ekonomicznymi a dochodami do dyspozycji uzyskiwanymi przez gospodarstwa domowe w przeliczeniu na 1 mieszkańca. Analizy dokonano w oparciu o dane publikowane przez Eurostat dla 2013 r. z podziałem na regiony NUTS 2, wykorzystując współczynnik korelacji Pearsona jako miarę...
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Wewnętrzna i rynkowa wartość płynności przedsiębiorstw w Polsce
PublikacjaW artykule podjęto się analizy problemów płynnościowych przedsiębiorstw z uwzględnieniem ich wewnętrznej i rynkowej wartości płynności. Odniesiono się również do opinii przedsiębiorstw o ich sytuacji płynnościowej. Stwierdzono, że działalności gospodarczej towarzyszy niepewność co do warunków prowadzenia działalności gospodarczej w przyszłości, dopływu środków pieniężnych oraz kosztu pozyskania źródeł finansowania. Niepewność jest...
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Ryzyko płynności a poziom płynności finansowej przedsiębiorstw w Polsce
PublikacjaW artykule przedstawiono problem płynności w przedsiębiorstwach w Polsce. Wskazano, że postępujące ryzyko płynności, wyrażające się m.in. zatorami płatniczymi, wymaga jego ograniczania. Literatura przedmiotu wyraźnie wskazuje na kształt procesu zarządzania tym ryzykiem, lecz firmy nie przywiązują dostatecznej wagi do działań kształtujących płynność wewnątrz przedsiębiorstwa. Proces zarządzania ryzykiem płynności ma często charakter...
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Временные иммигранты из Украины во время членства Польши в ЕС
PublikacjaЦелью статьи являлсяподсчёт количества иммигрантов, которые прибыли в Польшуиз Украины на временное проживаниев 2004–2017 г.г., а также предоставление характеристикиих занятости. Исследовательская гипотеза статьи (чем больше было возможностей найту работув Польше, тем больше украинцев приезжало в эту страну) была проверена посредством нахождения ответов на следующие вопросы: на каких юридических основах граждане Украины могли приезжать...
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Algorithmic Human Resources Management - Perspectives and Challenges
PublikacjaTheoretical background: Technology – most notably processes of digitalisation, the use of artificial intelligence, machine learning, big data and prevalence of remote work due to pandemic – changes the way organizations manage human resources. One of the increasing trends is the use of so-called “algorithmic management”. It is notably different than previous e-HRM or HRIS (human resources information systems) applications, as it...
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Energy Security of Polish Consumers in 2004-2021
PublikacjaTheoretical background: Energy security is one of the most important components of economic security. It is influenced not only by access to energy sources and the economic situation of the state and the individual consumer. The authors adopted the definition of energy security of an individual consumer as included in the UN report. It states that energy security of an individual consumer is guaranteed when the average consumer...
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Ukraine’s Energy Security in Strategies
PublikacjaDuring the independence period, the Ukrainian government has published two energy security strategies. The first strategy was adopted in 2006 and the second one in 2016. Both documents provided a similar definition of energy security. The aims of the first strategy, covering the period 2006–2030, were the restructuring of the fuel and energy complex using new technologies, increase of energy efficiency and ensuring market prices...
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Sewage sludge pretreatment by low thermal disintegration for better efficacy of sludge digestion process
PublikacjaThe wastewater water treatment plant (WWTP) sector and it is developing technologies strive to be implement circular economy. The methane production from the sludge digestion process constitute promising source of the renewable energy for WWTP and approaching circular economy assumptions. For this reason, the objective of the study was to examine the modification of sludge characteristics due to the low temperature pretreatment....
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Projektowanie układów geometrycznych toru z zastosowaniem optymalizacji wielokryterialnej
PublikacjaW pracy przedstawiono metodę projektowania odcinków trasy kolejowej położonych w łuku, dostosowaną do techniki mobilnych pomiarów satelitarnych. Rozwiązanie problemu projektowego wykorzystuje zapis matematyczny i polega na wyznaczeniu uniwersalnych równań opisujących całość układu geometrycznego. Odbywa się to sekwencyjnie, obejmując kolejne fragmenty tegoż układu. Procedura projektowania ma charakter uniwersalny, gdyż w ogólnym...
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Internet technology in education - offer of Gdansk University of Technology.
PublikacjaW artykule przedstawiono ofertę szkoleń Centrum Edukacji Niestacjonarnej Politechniki Gdańskiej oraz możliwości jej wykorzystania na Wydziale Inżynierii Lądowej w studiach doktoranckich i podyplomowych, które zostaną uruchomione w ramach V Programu Ramowego Unii Europejskiej, Centra Doskonałości (projekt CURE - Centre for Urban Construction and Rehabilitation: Technology Transfer, Research and Education). Zaprezentowano model nauczania...
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Wykorzystanie technologii internetowych w kształceniu - oferta Politechniki Gdańskiej
PublikacjaW artykule przedstawiono ofertę szkoleń CEN PG oraz możliwości jej wykorzystania na Wydziale Inżynierii Lądowej w studiach doktoranckich i podyplomowych, które zostaną uruchomione w ramach V Programu Ramowego Unii Europejskiej, Centra Doskonałości (projekt CURE - Centre for Urban Construction and Rehabilitation: Technology Transfer, Research and Education). Zaprezentowano model nauczania zintegrowanego, który łączy różne formy...
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Hybridization of valuation procedures as a medicine supporting the real estate market and sustainable land use development during the covid-19 pandemic and afterwards
PublikacjaCurrently we are facing the pandemic situation that occur all over the world. Regardless the country or even the region, the negative consequences that are expected could be very big and the level of crisis is not predictable. This situation is the challenge for the real estate market as well. Due to this fact, the authors believe that there is the time when deep transformation of approaches, procedures and awareness related to...
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Experimental observations on the creep behaviour of frozen soil
PublikacjaConstitutive models in the literature for creep of frozen soil are based on the direct use of time counted from the onset of creep. An explicit time dependence in a constitutive equation violates the principles of rational mechanics. No change in stress or temperature is allowed for during creep, using the time-based formulations. Moreover, the existing descriptions need much verification and improvement on the experimental side...
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A new anisotropic bending model for nonlinear shells: Comparison with existing models and isogeometric finite element implementation
PublikacjaA new nonlinear hyperelastic bending model for shells formulated directly in surface form is presented, and compared to four existing prominent bending models. Through an essential set of elementary nonlinear bending test cases, the membrane and bending stresses of each model are examined analytically. Only the proposed bending model passes all the test cases, while the other bending models either fail or only pass the test cases for...
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The process of identification of the track's geometrical layout and the alignment project based on the of satellite measurements
PublikacjaIn the paper a methodology of restoring of railway track’s geometrical shape in a horizontal plane on the base of conducted mobile satellite surveying was presented. The authors proposed a calculating algorithm for designing the track sections placed in horizontal arcs. In the algorithm an analytical methodology with mathematical formulas is applied. The procedure has an universal character, i.e. provides the possibility of varying...
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Satellite inventory of tram track geometrical layout
PublikacjaIn the paper a methodology of restoring of railway track’s geometrical shape in a horizontal plane on the base of conducted mobile satellite surveying was presented. The authors proposed a calculating algorithm for designing the track sections placed in horizontal arcs. In the algorithm an analytical methodology with mathematical formulas is applied. The procedure has an universal character, i.e. provides the possibility of varying...
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Low cost set-up for supercapacitors parameters evaluation
PublikacjaSupercapacitors are capable to store relatively high amount of energy comparing to its mass. Growing number of these devices applications requires development of new testing methods. Standard methods of evaluation of supercapacitor parameters, as cycling voltammetry, CV, galvanostatic cycling with potential limitation, GCPL, impedance measurements, require equipment of high cost...
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Experimental Research of an Axial Piston Pump with Displaced Swash Plate Axis of Rotation
PublikacjaThe article describes the influence of displacement of the swash plate rotation axis on the efficiency of axial piston pumps. The dead space volume was defined as the volume of the working chamber in the extreme position of the piston at the end of the pumping phase and its variability was determined as a function of the position of the axis of rotation of the swash plate and the swing angle of swash plate. The influence of swash...
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Analysis of Modal Parameters Using a Statistical Approach for Condition Monitoring of the Wind Turbine Blade
PublikacjaThe primary objective of the presented paper is the numerical and experimental investigation related to developing a useful diagnostic method, which can be used for determining the site and size of damage in laminated shells of wind turbine blades. The described detection technique is based on the analysis of low frequencies bending vibrations mode shapes of rotor blades. The authors used the commonly applied statistics methods...
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Production of Biogas from Distillation Residue as a Waste Material from the Distillery Industry in Poland
PublikacjaIn this paper, the possibility to obtain an alternative source of energy from methane fermentation, catalysed by biomass, has been discussed in detail. As a main substrate, the distillation residue from the distillery industry was taken in the case of mono-fermentation and its co-fermentation with sewage sludge. The results showed that higher biogas and methane production can be obtained in a mono-fermentation process. Fermentation...
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Aggregation properties of some zirconium phosphate loaded with dirhenium(III) complexes
PublikacjaOne of the important areas of modern science is the selection of the right forms of drug delivery. Layered inorganic nanoparticles, such as zirconium phosphate, have proven themselves well in this area. The study of the properties of these systems and methods of their preparation makes it possible to determine a rational technology of their manufacture, storage conditions as well as suggest a possible mechanism of therapeutic action....
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MRI-Derived Subcutaneous and Visceral Adipose Tissue Reference Values for Children Aged 6 to Under 18 Years
PublikacjaThe assessment of body composition in pediatric population is essential for proper nutritional support during hospitalization. However, currently available methods have limitations. This study aims to propose a novel approach for nutrition status assessment and introduce magnetic resonance imaging (MRI)-derived subcutaneous and visceral fat normative reference values. A total of 262 healthy subjects aged from 6 to 18 years underwent...
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VALUATION OF EMBEDDED OPTIONS IN NON-MARKETABLE CALLABLE BONDS: A NEW NUMERICAL APPROACH
PublikacjaThe issue of how to price options embedded in callable bonds has attracted a lot of interest over the years. The usual bond valuation methods rely on yield curves, risk premium, and other parameters to estimate interest rates used in discounted cash flow calculations. The option to retire the bond is, however, neglected in the standard pricing models, causing a systematic overvaluation of callable bonds. In the event of a decline...
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Two-Stage Variable-Fidelity Modeling of Antennas with Domain Confinement
PublikacjaSurrogate modeling has become the method of choice in solving an increasing number of antenna design tasks, especially those involving expensive full-wave electromagnetic (EM) simulations. Notwithstanding, the curse of dimensionality considerably affects conventional metamodeling methods, and their capability to efficiently handle nonlinear antenna characteristics over broad ranges of the system parameters is limited. Performance-driven...
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A procedure for the identification of effective mechanical parameters of additively manufactured elements using integrated ultrasonic bulk and guided waves
PublikacjaThe subject of the current work was a simple but robust novel two-stage procedure for the non-destructive determination of effective elastic constants using ultrasonic wave propagation. First, ultrasonic bulk wave velocities measured on cubic samples were used to calculate most of the elements of the stiffness matrix. Secondly, the remaining elements were determined using the dispersion curves of elastic guided waves measured on...
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MODELOWANIE TURBINY WIATROWEJ Z DWOMA PRZECIWBIEŻNIE OBRACAJĄCYMI SIĘ WIRNIKAMI
PublikacjaW artykule przedstawiono sposoby modelowania dwuwirnikowej turbiny wiatrowej z wykorzystaniem technik Obliczeniowej Mechaniki Płynów. Omówiono uproszczone metody modelowania Actuator Disc i Actuator Line Method oraz aspekty związane z dokładnym odwzorowaniem turbiny na siatce obliczeniowej. Zaprezentowano przykładowe wyniki obliczeń turbiny dwuwirnikowej złożonej z wirników NREL o mocy nominalnej 5 MW każdy. Do wykonania badań...
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Ultrasound and Clinical Preoperative Characteristics for Discrimination Between Ovarian Metastatic Colorectal Cancer and Primary Ovarian Cancer: A Case-Control Study
PublikacjaThe aim of this study was to describe the clinical and sonographic features of ovarian metastases originating from colorectal cancer (mCRC), and to discriminate mCRC from primary ovarian cancer (OC). We conducted a multi-institutional, retrospective study of consecutive patients with ovarian mCRC who had undergone ultrasound examination using the International Ovarian Tumor Analysis (IOTA) terminology, with the addition of evaluating...
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An adaptive-noise Augmented Kalman Filter approach for input-state estimation in structural dynamics
PublikacjaThe establishment of a Digital Twin of an operating engineered system can increase the potency of Structural Health Monitoring (SHM) tools, which are then bestowed with enhanced predictive capabilities. This is particularly relevant for wind energy infrastructures, where the definition of remaining useful life is a main driver for assessing the efficacy of these systems. In order to ensure a proper representation of the physical...
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Contamination of runoff waters from roads with high traffic intensity in the urban region of Gdańsk, Poland
PublikacjaW ramach pracy prowadzone były badania zanieczyszczeń w próbkach wód spływnych z arterii komunikacyjnych. Próbki pobierano z sześciu stałych punktów zlokalizowanych wzdłuż szlaku komunikacyjnego prowadzącego z Redy do Gdańska (z miejsc o dużym natężeniu ruchu pojazdów) oraz z ulicy M. Buczka w Redzie (o mniejszym natężeniu ruchu). Próbki pobierane były przez okres dwóch miesięcy (okres deszczów jesiennych: 24.10 - 18.12.2000) oraz...
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Nutraceutical value of persimmon (Diospyros kaki Thunb.) and its influence on some indices of atherosclerosis in an experiment on rats fed cholesterol-containing diet
PublikacjaThe nutraceutic value of persimmon (Diospyros kaki Thunb. cv. Triumph) and its influence on some indices of atherosclerosis were studied in vitro and in experiment on rats fed cholesterol-containing diet. It was found that persimmon possesses a high nutraceutical value: it contains soluble fibers, total polyphenols and phe - nolic acids. The content of dietary fiberwas 1.83 ± 0.11, 0.69 ± 0.07 and 1.14 ± 0.12 g/100 g fresh weight...
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An effective method for studying intermolecular interactions in binary liquids with hydrogen bonds: FTIR spectra and ab initio calculations in the N-methylformamide - methanol system
PublikacjaMolecular complexes in methanol (MeOH)−N-methylformamide (NMF) mixtures were studied based on their FTIR-ATR spectra, to which two methods of analysis were applied: factor analysis and a quantitative version of the difference-spectra method. The mean composition of a complex between NMF and MeOH molecules over the whole range of mixture compositions was determined. Absorbing species differentiated with regard to the interaction...
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Free trade with the former COMECON Countries as Unequal Exchange
PublikacjaTwo authors of this chapter were born to the East of what was once The Iron Curtain and two to the West. From both angles, the two systems – capitalism and communism – seemed to be as contrary to each other as possible. Few people are aware that in terms of industrial and trade policy, both classical capitalism and communism had a common root in the theories of German economist Friedrich List (1789-1846) (List, 1841). In fact,...
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Introducing concurrent engineering to space and satellite technology undergraduate course
PublikacjaIn recent decade concurrent engineering has become a de facto leading methodology of work in space, aeronautics and sometimes even automotive industry. It has been used in designing ESA space missions for 20 years now, with rst Concurrent Design Facility (CDF) built in ESTEC in 1998. Still, it has not become a universal standard in engineering, and universities are specically reluctant to adopt it into their curricula. As a result,...
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Self-Organization of Graft Copolymers and Retortable iPP-Based Nanoporous Films Thereof
PublikacjaPolyolefins might become inexpensive alternatives to the existing membranes based on polyethersulfone. Here we disclose the production of retortable, well-defined PP-based nanoporous membranes derived from amphiphilic graft copolymer precursors. The graft copolymers, containing a polypropylene backbone and polyester grafts, were obtained by grafting lactones, specifically δ-valerolactone and ε-caprolactone, from well-defined randomly...
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A screening of select toxic and essential elements and persistent organic pollutants in the fur of Svalbard reindeer
PublikacjaReindeers play an important role in the polar ecosystem, being long-lived sole vegetarians feeding on local vegetation. They can be used as a valuable bioindicator, helping us to understand contaminants’ impact on the polar terrestrial ecosystem. Still, scarce data exist from research in which polar herbivores (especially those from the European parts of the Arctic) were a major study subject for trace elements and persistent organic...
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Evaluation of adhesion strength, corrosion, and biological properties of the MWCNT/TiO2 coating intended for medical applications
PublikacjaMulti-wall carbon nanotube (MWCNT) coatings are gaining increasing interest because of their special properties used in many science fields. The titania coatings are known for their improvement of osteoblast adhesion, thus changing the surface architecture. Bi-layer coatings comprising 0.25 wt% of the MWCNTs and 0.30 wt% of titania (anatase structure) were synthesized in a two-stage procedure using the electrophoretic deposition...
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An automated learning model for twitter sentiment analysis using Ranger AdaBelief optimizer based Bidirectional Long Short Term Memory
PublikacjaSentiment analysis is an automated approach which is utilized in process of analysing textual data to describe public opinion. The sentiment analysis has major role in creating impact in the day-to-day life of individuals. However, a precise interpretation of text still relies as a major concern in classifying sentiment. So, this research introduced Bidirectional Long Short Term Memory with Ranger AdaBelief Optimizer (Bi-LSTM RAO)...
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Meso‐scale analyses of size effect in brittle materials using DEM
PublikacjaThe paper describes numerical meso-scale results of a size effect on strength, brittleness and fracture in brittle materials like concrete. The discrete element method (DEM) was used to simulate the size effect during quasi-static splitting tension with the experimental-based meso-structure. The two-dimensional (2D) calculations were carried out on concrete cylindrical specimens with two diameters wherein two different failure...
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Influence of Nitriding and Laser Remelting on Properties of Austenitic Stainless Steel Type X10CrNi18-8 and Cavitation Erosion Resistance
PublikacjaThe paper presents properties of surface layers. Surface layers were obtained by using low temperature glow–discharge nitriding process and laser remelting carried out on austenitic stainless steel type X10CrNi18-8. Investigations were done by using an Ultra Nanoindentation Tester (UNHT) in the Warsaw Institute of Fundamental Technological Research. The influence of the above mentioned...
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In-tube extraction for the determination of the main volatile compounds in Physalis peruviana L
PublikacjaAn analytical procedure based on in-tube extraction followed by gas chromatography with mass spectrometry has been developed for the analysis of 24 main volatile components in cape gooseberry (Physalis peruviana L.) samples. According to their chemical structure, the compounds were organized into different groups: one hydrocarbon, one aldehyde, four alcohols, four esters, and 14 monoterpenes. By single-factor experiments, incubation...
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Enhancing seismic performance of steel buildings having semi-rigid connection with infill masonry walls considering soil type effects
PublikacjaUnpreventable constructional defects are the main issues in the case of steel Moment-Resisting Frames (MRFs) that mostly occur in the rigidities of beam-to-column connections. The present article aims to investigate the effects of different rigidities of structures and to propose Infill Masonry Walls (IMWs) as retrofitting strategy for the steel damaged buildings. A fault or failure to meet a certain consideration of the soil type...
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Methods for biomaterials printing: A short review and perspective
PublikacjaPrinting technologies have opened larger windows of innovation and creativity to biomaterials engineers by providing them with the ability to fabricate complex shapes in a reasonable time, cost, and weight. However, there has always been a trouble with function adjusting in printing technologies in view of the multiplicity of materials and apparatus parameters. 3D printing, also known as additive manufacturing, revolutionized biomaterials...
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New hybrid quadrature schemes for weakly singular kernels applied to isogeometric boundary elements for 3D Stokes flow
PublikacjaThis work proposes four novel hybrid quadrature schemes for the efficient and accurate evaluation of weakly singular boundary integrals (1/r kernel) on arbitrary smooth surfaces. Such integrals appear in boundary element analysis for several partial differential equations including the Stokes equation for viscous flow and the Helmholtz equation for acoustics. The proposed quadrature schemes apply a Duffy transform-based quadrature...