Search results for: STANDARDIZED STREAMFLOW INDEX (SSI)

• Rheology of potato starch chemically modified with microwave-assisted reactions

  Publication

  • H. Staroszczyk
  • M. Fiedorowicz
  • J. Opalińska-Piskorz
  • R. Tylingo

  - LWT-FOOD SCIENCE AND TECHNOLOGY - Year 2013

  Native potato starch was sulfated, selenated, borated, silicated and zincatated by means of microwave-assisted reactions with varying doses of relevant reagents. Resulting products were characterized involving rheological behavior of pastes, their weight-average molecular weight (Mw), and radius of gyration (Rg). Most of the pastes showed shear-thinning behavior, with the flow behavior index (n) below unity. The pastes of starch...

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• The chemistry, properties and performance of flame-retardant rubber composites: Collecting, analyzing, categorizing, machine learning modeling, and visualizing

  Publication

  • P. Wiśniewska
  • E. Movahedifar
  • K. Formela
  • M. Naser-moghadasi
  • H. Vahabi
  • M. Saeb

  - COMPOSITES SCIENCE AND TECHNOLOGY - Year 2024

  Rubbers combine the flexibility with mechanical strength, supporting myriad applications, but suffer from inherent flammability. Formulation and production of flame-retardant rubber composites (FRRCs) have intensively been practiced over years, but not comprehensively reviewed. This necessity has outlined collecting, analyzing, screening, classifying, and interpreting the literature with the aim of classifying the FRRCs. We quantified...

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• Effect of the ex situ physical and in situ chemical modification of bacterial nanocellulose on mechanical properties in the context of its potential applications in heart valve design

  Publication

  • A. Stanisławska
  • M. Szkodo
  • H. Staroszczyk
  • K. Dawidowska
  • M. Kołaczkowska
  • P. Siondalski

  - INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES - Year 2024

  Bacterial nanocellulose (BNC) is a promising material for heart valve prostheses. However, its low strength properties limit its applicability in cardiovascular surgery. To overcome these limitations, the mechanical properties of BNC can be improved through modifications. The aim of the research was to investigate the extent to which the mechanical properties of BNC can be altered by modifying its structure during its production...

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• Probabilistic analysis of settlements under a pile foundation of a road bridge pylon

  Publication

  • K. Winkelmann
  • K. Żyliński
  • J. Górski

  - SOILS AND FOUNDATIONS - Year 2021

  The paper addresses the reliability change of a road bridge pile foundation due to the unpredictable increase of settlements in time. The analysis is based on the Rędziński Bridge in Wrocław, Poland, its design assumptions, and monitoring results. The bridge foundation rests on a multi-layered subsoil assumed random. The Finite Element model of the subgrade is generated in ZSoil® software. To simplify the probabilistic approach,...

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• Real-time isothermal DNA amplification monitoring in picoliter volumes using an optical fiber sensor

  Publication

  • M. Janik
  • S. V. Hamidi
  • M. Koba
  • J. Perreault
  • R. Walsh
  • W. J. Bock
  • M. Śmietana

  - LAB ON A CHIP - Year 2021

  Rolling circle amplification (RCA) of DNA can be considered as a great alternative to the gold standard polymerase chain reaction (PCR), especially during this pandemic period, where rapid, sensitive, and reliable test results for hundreds of thousands of samples are required daily. This work presents the first research to date on direct, real-time and label-free isothermal DNA amplification monitoring using a microcavity in-line...

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• Fighting Administrative Corruption with Digital Government in Sub-Saharan Africa

  Publication

  • Y. Walle
  • T. Janowski
  • E. Estevez

  - Year 2019

  Administrative corruption is a pervasive problem and a major threat to economic and social development around the world, especially in Sub-Saharan Africa which lags behind other regions in various development indicators and is seen as one of the most corrupt regions globally. This paper examines a hypothesis that digital government – the use of digital technology to transform public administration organizations and their relationships...

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• Modeling of Cardiac Component of Subarachnoid Space Changes in Apnoea Resulting as a Function of Blood Pressure and Blood Flow Parameters - Two Mechanizm of Regulation

  Publication

  • K. Mazur
  • R. Kalicka
  • A. F. Frydrychowski
  • P. J. Winklewski

  - Year 2017

  Experiments were performed in a group of 19 healthy, non-smoking volunteers. The experiment consisted of three apnoeas, sequentially: 30 s apnoea, 60 s apnoea and maximal, that could be done, apnoea. The breath-hold was separated for 5 minutes rest. The following parameters were measured and obtained for further analysis: blood parameters, artery diameter of the internal carotid artery, end-tidal CO2 in expired air, the cardiac...

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• Domestic Wastewater Treatment

  Publication

  • H. Obarska-Pempkowiak
  • M. Gajewska
  • E. Wojciechowska
  • J. Pempkowiak

  - GeoPlanet: Earth and Planetary Sciences - Year 2015

  SSF systems are usually applied at the 2nd stage of domestic wastewater treatment, after mechanical treatment. The number of such installations working at the moment in Europe is estimated to be 100,000. In Germany about 10,000 systems are in operation.

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• Identification and characterization of single-stranded DNA-binding protein from the facultative psychrophilic bacteria Pseudoalteromonas haloplanktis

  Publication

  • M. Olszewski
  • M. Nowak
  • A. Cyranka-Czaja
  • J. Kur

  - MICROBIOLOGICAL RESEARCH - Year 2014

  Single-stranded DNA-binding protein (SSB) plays an important role in DNA metabolism such as DNAreplication, repair, and recombination, and is essential for cell survival. This study reports on the ssb-likegene cloning, gene expression and characterization of a single-stranded DNA-binding protein of Pseudoal-teromonas haloplanktis (PhaSSB) and is the first report of such a protein from psychrophilic microorganism.PhaSSB possesses...

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• Control Strategy of a Five-Phase Induction Machine Supplied by the Current Source Inverter With the Third Harmonic Injection

  Publication

  • M. Morawiec
  • F. Wilczyński

  - IEEE TRANSACTIONS ON POWER ELECTRONICS - Year 2022

  In the five-phase induction machine (IM), it is possible to better use the electromagnetic circuit than in the three-phase IM. This requires the use of an adequate converter system which will be supplied by an induction machine. The electric drive system described, in this article, includes the five-phase induction machine supplied by the current source inverter (CSI). The proposed novelty—not presented previously—is the control...

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• Virulence gene profiles in Staphylococcus aureus isolated from cows with subclinical mastitis in eastern Poland

  Publication

  • B. Kot
  • P. Szweda
  • A. Frankowska-maciejewska
  • M. Piechota
  • K. Wolska

  - JOURNAL OF DAIRY RESEARCH - Year 2016

  Staphylococcus aureus is arguably the most important pathogen involved in bovine mastitis. The aim of this study was to determine the virulence gene profiles of 124 Staph. aureus isolates from subclinical mastitis in cows in eastern Poland. The presence of 30 virulence genes encoding adhesins, proteases and superantigenic toxins was investigated by PCR. The 17 different combinations of adhesin genes were identified. Occurrence...

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• MTS pilot tone tracking for "wow" distortion determination

  Publication

  • P. Pastuszak

  - Archives of Acoustics - Year 2008

  Artykuł przedstawia nowy algorytm do wyznaczania charakterystyki kołysania dźwięku na podstawie śledzenia zmian tonu pilota MTS. Śledzenie zmian częstotliwości nośnej tonu MTS pozwala określić zmienną w czasie głębokość pasożytniczych modulacji częstotliwości będących konsekwencją kołysania. Na tej podstawie tworzona jest charakterystyka zniekształcenia. Proponowany algorytm bazuje na zaproponowanej wcześniej metodzie śledzenie...

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• Assessment of safety - related systems in industrial hazardous plants

  Publication

  • K. Kosmowski
  • A. Powarunas
  • M. Śliwiński

  - Year 2003

  Przedstawiono problemy związane z określaniem bezpieczeństwa funkcjonalnego systemów przemysłowych, w oparciu o standard IEC 61508. Wykorzystując informacje zawarte w cytowanym standardzie opisujemy metody określenia wymaganych poziomów zabezpieczeń dla instalacji przemysłowej. Wyjaśniamy znaczenie poziomów SIL. Poddano dyskusji procedurę poprawnego określania poziomów bezpieczeństwa systemów składających się z elementów o...

• REALIZACJA INTERFEJSU RADIOWEGO OFDM W TECHNOLOGII RADIA PROGRAMOWALNEGO DO ZASTOSOWAŃ TRANSPORTOWYCH

  Publication

  • A. Marczak

  - PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ. SERIA: TRANSPORT - Year 2016

  Metoda wielodostępu OFDM, jest stosowana obecnie w wielu standardach łączności radiowej, w tym w standardzie IEEE802.11p, który jest przewidziany do wykorzystania w Samochodowym Systemie Komunikacji. Technologia radia programowalnego (ang. Software Defined Radio) umożliwia realizacje urządzeń pracujących z tą metodą wielodostępu. W referacie zaprezentowano oprogramowanie GNU Radio i środowisko graficzne GNU Radio Companion służące...

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• Infrastruktura klucza publicznego SPKI.

  Publication

  • P. Szpryngier

  - Year 2004

  Przedstawiono najnowszą koncepcję zarządzania kluczami publicznymi. Zostały także omówione cechy szczególne infrastruktury SPKI/SDSI. Porównano modele systemów PKI i oceniono różne koncepcje zarządzania kluczami publicznymi.

• Some results of experimental research into turbine rotor trajectory

  Publication

  • K. Kosowski
  • M. Piwowarski

  - Year 2003

  Przedstawiono rezultaty eksperymentalnych badań trajektorii wirnika turbinowego. Doświadczenia przeprowadzono na modelowej turbinie powietrznej przy różnych częstotliwościach obrotów wału i różnym obciążeniu wału względem osi korpusu.

• Dual-emission Eu-doped Ca2−xSrxPN3 nitridophosphate phosphors prepared by hot isostatic press

  Publication

  • M. Fang
  • H. Hsueh
  • T. Vasudevan
  • W. Huang
  • Z. Bao
  • N. Majewska
  • S. Mahlik
  • H. Sheu
  • R. Liu

  - Journal of Materials Chemistry C - Year 2021

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• Ab-initio study of electrical and optical properties of allylamine

  Publication

  • B. Dec

  - Year 2018

  The Density functional theory is one of most promising methodology in fast and accurate calculations of electrical and optical properties from the atomic basis. In this paper, we calculate electrical and optical properties of allylamine (2-propen 1- amine) in terms of accuracy and speed of calculations obtained by selection of DFT-1/2 method with ultrasoft Vanderbilt pseudopotentials. Comparison of density of states between...

• Optical properties of boron-doped nanocrystalline diamond films studied by spectroscopic ellipsometry

  Publication

  • D. Majchrowicz
  • R. Bogdanowicz
  • M. Sobaszek

  - Year 2014

  The optical properties of boron-doped nanocrystalline diamond films, coated using Microwave Plasma Enhanced Chemical Vapour Deposition (μPE CVD) system, were analyzed by spectroscopic ellipsometry. Diamond films were deposited on silicon substrates. The ellipsometry data (refractive index (n(λ)), extinction coefficient (k(λ)) were modeled using dedicated software. Evolution of the optical structure with boron doping was observed...

• The Impact of Concentration on Secors' Output Level in the European Union (1997-2005)

  Publication

  • J. Wolszczak-Derlacz

  - Year 2010

  This paper examines the impact of concentration on growthof selected 43 sectors within ten European countries over the period of time 1997-2005. We apply system GMM estimator to the extendedversion of production function, including as explanatory variablesindustry specific measures of concentration. We found the relationbetween output and concentration measured by the Herfindahl-Hirschman Index (HHI) to be non-monotonic having...

• Indykatory dla modelu społeczeństwa informacyjnego.

  Publication

  • Z. Tomczak

  - Year 2004

  W dobie postępującej informatyzacji, w czasach nazywanych często trzecią rewolucją technologiczną, synonimem ich jest społeczeństwo informacyjne IS (Information Society). Najpopularniejszy obecnie sposób, służący do szeregowania społeczeństw według ich stopnia rozwoju, jest oparty na HDI (Human Development Index). HDI jest wyliczany jako kombinacja trzech wyznaczników: longevity, knowledge, and a decent standard of living. Postanowiono,...

• Characterization of Corrosion-Induced Fracture in Reinforced Concrete Beams Using Electrical Potential, Ultrasound and Low-Frequency Vibration

  Publication

  • T. Ferenc
  • E. Wojtczak
  • B. Meronk
  • J. Ryl
  • K. Wilde
  • M. Rucka

  - JOURNAL OF NONDESTRUCTIVE EVALUATION - Year 2024

  The paper deals with the non-destructive experimental testing of the reinforced concrete beams under progressive corrosion. A series of experiments using electrical potential, ultrasound and low-frequency vibrations techniques are reported. Electrical potential and natural frequencies were used to characterise and monitor the corrosion process at its initial state. The P-wave velocity measurements were proved to be effective in...

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• PROCESSING, MECHANICAL AND THERMAL PROPERTIES OF RECYCLED LOW-DENSITY POLYETHYLENE STREAMS

  Publication

  • J. Korol
  • A. Hejna

  - Year 2020

  The recycling of plastics is currently one of the most significant industrial challenges. Due to the enormous amounts of plastic wastes generated by various industry branches, it is essential to look for the potential methods of their utilization. Nevertheless, for the efficient application of recycled materials it is crucial to analyze their performance. Therefore, in presented paper we investigated the processing (melt flow index),...

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• Influence of statistical errors on damage detection based on structuralflexibility and mode shape curvature

  Publication

  • A. Tomaszewska

  - COMPUTERS & STRUCTURES - Year 2010

  Damage detection procedures based on measured natural frequencies and building structure mode shapes are discussed in this paper. Modal curvature and structural flexibility approaches are tested. Attention is paid to the modal identification errors that influence damage detection. This problem is studied using a computer simulation of a simple supported beam. For practical cases, the peak picking methodand its statistical errors...

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• Vibroflotation Control of Sandy Soils using DMT and CPTU

  Publication

  • L. Bałachowski
  • N. Kurek

  - Year 2015

  Vibroflotation is a typical improvement method for the cohesionless deposits of high thickness. The compaction method was applied to densify sandy deposits in Gdynia Port. Compaction control was verified with CPTU and DMT tests. Some examples of interpretation of soundings in pre-treated and compacted sands are shown. The classification diagrams are given for pre-treated and compacted sand. The stress history of the deposits is...

• Synthesis and antiproliferative activity of new mycophenolic acid conjugates with adenosine derivatives

  Publication

  • M. Prejs
  • G. Cholewiński
  • P. Trzonkowski
  • A. Kot-Wasik
  • K. Dzierzbicka

  - JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH - Year 2019

  New conjugates of mycophenolic acid (MPA) and adenosine derivatives were synthesized and assessed as potential immunosuppressants on Jurkat cell line and peripheral blood mononuclear cells (PBMC) from healthy donors. As compared to MPA, all compounds were found to be more active against Jurkat cell line. The antiproliferative activities were compared with MPA and adenosine, in both 2′,3′-O-isopropylidene protected and free hydroxyl...

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• Ab-initio study of electrical and optical properties of allylamine

  Publication

  • B. Dec
  • K. Pyrchla
  • R. Bogdanowicz

  - Photonics Letters of Poland - Year 2018

  The Density functional theory is one of most promising methodology in fast and accurate calculations of electrical and optical properties from the atomic basis. In this paper, we calculate electrical and optical properties of allylamine (2-propen 1- amine) in terms of accuracy and speed of calculations obtained by selection of DFT-1/2 method with ultrasoft Vanderbilt pseudopotentials. Comparison of density of states between molecule...

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• Fatigue Performance of Double-Layered Asphalt Concrete Beams Reinforced with New Type of Geocomposites

  Publication

  • P. Jaskuła
  • D. Ryś
  • M. Stienss
  • C. Szydłowski
  • M. Gołos
  • J. Kawalec

  - Materials - Year 2021

  The reinforcement of asphalt layers with geosynthetics has been used for several decades, but proper evaluation of the influence of these materials on pavement fatigue life is still a challenging task. The presented study investigates a novel approach to the reinforcement of asphalt layers using a new type of geogrid composite, in which square or hexagonal polypropylene stiff monolithic paving grid with integral junctions is bonded...

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• A Review of Standards with Cybersecurity Requirements for Smart Grid

  Publication

  • R. Leszczyna

  - COMPUTERS & SECURITY - Year 2018

  Assuring cybersecurity of the smart grid is indispensable for the reliable operation of this new form of the electricity network. Experts agree that standardised solutions and practices should be applied in the first place. In recent years many new standards for smart grids have been published, which paradoxically results in the difficulty of finding a relevant publication in this plethora of literature. This paper presents results...

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• Tetra-n-butylammonium iodido(pyrrolidine-1-carbodithioato-κ2S,S')(tris-tert-butoxysilane-thiolato-κS)cadmate(II)

  Publication

  • A. Mietlarek-Kropidłowska
  • J. Chojnacki
  • B. Becker

  - ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE - Year 2008

  Tytułowy (N,N tetrametylenoditiokarbaminiano)(tri-tert-butoksysilanotiolano)jodokadmian tetra-n-butyloamoniowy krystalizuje w układzie jednoskośnym, w grupie P21/c. W anionie [Cd{SSi(OtBu)3}(S2CNC4H9)I]() wyróżnić można centralny rdzeń o składzie CdS3I. Ułożenie atomów donorowych może być, w pierwszym przybliżeniu, opisane jako zniekształcony (ze względu na obecność S,S'-chelatującego liganda) tetraedr z największym kątem S1-Cd1-S2...

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• A freeze-thaw method for desintegration of Escherichia coli cells producing T7 lysozyme used in pBAD expression systems

  Publication

  • M. Wanarska
  • P. Hildebrandt
  • J. Kur

  - Acta Biochimica Polonica - Year 2007

  Plazmid pLysN zawierający gen kodujący lizozym T7 pod kontrolą promotora lac został skonstruowany w celu ułatwienia dezintegracji komórek po ekspresji rekombinantowych białek w systemach ekspresji indukowanych arabinozą. Użyteczność plazmidu została przetestowana w komórkach Escherichia coli TOP10 i E. coli LMG194, niosących plazmid pBADMHADgeSSB, zawierający gen kodujący białko SSB Deinococcus geothermalis pod kontrolą promotora...

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• On Application of Selected Methods of Artificial Intelligence in Expert Systems for Thermal and Flow Diagnostics

  Publication

  • J. Głuch

  - Transactions of the Institute of Fluid-Flow Machinery - Year 2003

  Przedyskutowano problem wspomagania przez systemy ekspertowe decyzji eksploatacyjnych służb nadzoru obiegów turbin parowych. Uwagę skupiono na realizacji jednego z zadań tych systemów, polegającemu na określenie rozmiaru eksploatacyjnej degradacji parametrów geometrycznych układów łopatkowych turbin. Dyskusję przeprowadzono na przykładzie jednego z komponentów metod sztucznej inteligencji: wybranego typu sztucznej sieci neuronowej...

• Possibility of exact determination of thermal and flow degradation symptoms in on-line power objects diagnostics

  Publication

  • F. Jankowski
  • J. Głuch

  - Year 2006

  Przedyskutowano problem dokładności tworzenia symptomów degradacji dotyczących sprawności urządzeń składowych dużych obiektów energetycznych. W referacie zajęto się szczególnie metodami tworzenia wzorców sprawnej pracy w przypadku określania sprawności w układzie on-line i porównano ją z określeniem w systemie off-line. Do odtwarzania stanu referencyjnego zastosowano sieć neuronową statystyczną (SSN, ang. ANN) o nieskokowych funkcjach...

• Application of Diversity Combining with RLS Adaptive Filtering in Data Transmission in a Hydroacoustic Channel

  Publication

  • A. Czapiewska
  • R. Studański
  • A. Łuksza
  • A. Żak

  - SENSORS - Year 2020

  When transmitting data in a hydroacoustic channel under difficult propagation conditions, one of the problems is intersymbol interference (ISI) caused mainly by the effect of multipath propagation. This phenomenon leads to a decrease in transmission parameters, and sometimes completely prevents it. Therefore, we have made an attempt to use diversity combining with Recursive Least Squares (RLS) adaptive filtering to improve the...

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• Cyfrowy akcelerator wybranych modułów standardu kompresji wideo H.264

  Publication

  • M. Kłosowski
  • B. Pankiewicz
  • M. Wójcikowski

  - Year 2014

  W komunikacie przedstawiono konfigurowalny cyfrowy akcelerator estymacji ruchu (motion estimation) przeznaczony dla enkodera wideo standardu H.264. Akcelerator został wstępnie zaimplementowany w układzie FPGA VIRTEX6-VLX365T, a następnie w układzie ASIC w technologii UMC 90 nm. Obie implementacje zostały zweryfikowane pozytywnie, a szczegółowe wyniki symulacji i pomiarów akceleratora ASIC zostały porównane z innymi dostępnymi w...

• REALIZACJA INTERFEJSU RADIOWEGO OFDM W TECHNOLOGII RADIA PROGRAMOWALNEGO DO ZASTOSOWAŃ WOJSKOWYCH

  Publication

  • A. Marczak

  - Year 2016

  Metoda wielodostępu OFDM, jest stosowana obecnie w wielu standardach łączności radiowej, w tym w standardzie IEEE802.11p, który jest przewidziany do realizacji transmisji danych pomiędzy pojazdami, oraz pomiędzy pojazdami i infrastrukturą znajdującą się w pobliżu drogi. Technologia radia programowalnego (ang. Software Defined Radio) umożliwia realizacje urządzeń pracujących z tą metodą wielodostępu. W referacie zaprezentowano oprogramowanie...

• Distortion of speech signals in the listening area: its mechanism and measurements

  Publication

  • H. Lasota
  • R. Mazurek
  • I. Kochańska

  - Year 2014

  The paper deals with a problem of the influence of the number and distribution of loudspeakers in speech reinforcement systems on the quality of publicly addressed voice messages, namely on speech intelligibility in the listening area. Linear superposition of time-shifted broadband waves of a same form and slightly different magnitudes that reach a listener from numerous coherent sources, is accompanied by interference effects...

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• Exhaled breath analysis by resistive gas sensors

  Publication

  • T. Chludziński
  • A. Kwiatkowski

  - Metrology and Measurement Systems - Year 2020

  Breath analysis has attracted human beings for centuries. It was one of the simplest methods to detect various diseases by using human smell sense only. Advances in technology enable to use more reliable and standardized methods, based on different gas sensing systems. Breath analysis requires the detection of volatile organic compounds (VOCs) of the concentrations below individual ppm (parts per million). Therefore, advanced detection...

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• Comparative Analysis of Carbon, Ecological, and Water Footprints of Polypropylene-Based Composites Filled with Cotton, Jute and Kenaf Fibers

  Publication

  • J. Korol
  • A. Hejna
  • D. Burchart-Korol
  • J. Wachowicz

  - Materials - Year 2020

  Composites containing natural fibers are considered environmentally friendly materials which is related to the reduced use of fossil fuels and the emission of carbon dioxide compared to petroleum-based polymers. Nevertheless, a complete evaluation of their environmental impact requires a broader view. This paper presents a carbon, ecological, and water footprints assessment of polypropylene-based composites filled with cotton,...

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• Health Enhancing Physical Activity Policies in Poland: Findings from the HEPA PAT Survey

  Publication

  • A. Romanowska
  • A. Morawiak
  • C. Woods
  • L. Kelly
  • K. Volf
  • P. Gelius
  • S. Messing
  • S. Forberger
  • J. Lakerveld
  • N. R. Den Braver... and 2 others

  - International Journal of Environmental Research and Public Health - Year 2022

  Insufficient physical activity (PA) is one of major risk factors for serious diseases and premature mortality worldwide. Public policies to enhance PA across society are recognized as an effective tool against the problem. This paper presents the results of a comprehensive assessment of national-level PA policy approach in Poland. A standardized survey of Word Health Organization named the Health-Enhancing Physical Activity Policy...

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• Comparison of pavement noise properties on selected road sections using different CPX measuring systems: self-powered vehicle and special test trailer

  Publication

  • P. Mioduszewski
  • W. Sorociak,

  - Year 2019

  The recently published ISO standard intended to measure the noise properties of road surfaces in a standardized method (ISO 11819-2:2017) precisely defines measurement procedure of the influence of road surface on traffic noise. According to it, two types of test vehicles may be utilized: a self-powered vehicle fitted with one or more test tyres and a trailer towed by a separate vehicle with one or more test tyres mounted on the...

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• Mononuclear sodium(I) and copper(I) silanethiolates

  Publication

  • S. Godlewska
  • K. Kazimierczuk
  • A. Dołęga

  - INORGANIC CHEMISTRY COMMUNICATIONS - Year 2014

  Stericallyencumberedligand(ArO) 3 SiS − , where Ar = 2,6-diisopropylphenyl, was employed for the synthesisof a dicoordinate copper(I) complex. The ligand creates a very hydrophobic environment around the metal center as indicated by the crystal structures and FT-IR spectroscopy.

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• Recenzja: Mirosław Lenart, Patavium, Pava, Padwa. Tło kulturowe pobytu Jana Kochanowskiego na terytorium Republiki Weneckiej, Instytut Badań Literackich PAN Wydawnictwo, Warszawa 2013 ("Studia Staropolskie Series Nova", t. XXXIII), ss. 257, Indeks nazwisk, il.

  Publication

  • A. M. Lepacka

  - Year 2014

• Łączenie danych pomiarowych z dodatkową wiedzą metrologiczną w celu oceny niepewności pomiaru

  Publication

  • W. Toczek
  • B. S. R. Nagothu

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2018

  Przedstawiono modus operandi w ocenie niepewności pomiaru dla krótkich serii pomiarowych. Metoda wykorzystuje dodatkową wiedzę metrologiczną do zwiększenia liczby stopni swobody rozkładu t-Studenta, uzyskiwanego w wyniku bayesowskiej analizy wyników pomiarów. W rezultacie możliwe jest oszacowanie niepewności standardowych dla najkrótszych serii pomiarowych, o długości n=2 i n=3.

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• Improvement of Oxygen Electrode Performance of Intermediate Temperature Solid Oxide Cells by Spray Pyrolysis Deposited Active Layers

  Publication

  • B. Kamecki
  • J. Karczewski
  • P. Jasiński
  • S. Molin

  - Advanced Materials Interfaces - Year 2021

  Intermediate temperature solid oxide fuel cells oxygen electrodes are modified by active interfacial layers. Spray pyrolysis is used to produce thin (≈500 nm) layers of mixed ionic and electronic conductors: Sm0.5Sr0.5CoO3−δ (SSC), La0.6Sr0.4CoO3−δ (LSC), La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF), and Pr6O11 (PrOx) on the electrode–electrolyte interface. The influence of the annealing temperature on the electrode polarization (area specific...

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• Time-frequency analysis of acoustic signals using concentrated spectrogram

  Publication

  • K. Czarnecki
  • M. Moszyński
  • M. Rojewski

  - Year 2011

  The paper presents improved method of time-frequency (TF) analysis of discrete-time signals. The method involves signal's local group delay (LGD) and channelized instantaneous frequency (CIF) to purposely redistribute all Short-time Fourier transform (STFT) lines. Additionally, the energy concentration index (ECI) and some histogram-like statistics are used to evaluate readability of estimated TF distributions of the energy. Recorded...

• Subsoil degradation effect in reliability analysis of the jack-up platform structure

  Publication

  • B. Rozmarynowski
  • M. K. Jasina

  - Logistyka - Year 2015

  Structural reliability analysis is considered, by FORM and SORM applied to a certain idealized soil-platform structure interaction problem due to cyclic water wave and wind loads. Wave and wind loads are random variables, whereas dead load is deterministic. Load parameters are typical for storm conditions in the Baltic Sea. The soil-structure interaction is idealized as a set of linear translational and rotational springs. Due...

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• Determinants of Firm Innovation in Indonesia: The Role of Institutions and Access to Finance

  Publication

  • U. Zuhdi
  • M. Edo
  • M. Ratnawati

  - Economics and Finance of Indonesia - Year 2015

  This paper investigates the determinants of firm innovation in Indonesia. Using quality of local regulations index constructed by the Indonesia’s Regional Autonomy Watch (KPPOD) as measure of institutions, We found that better institutional quality at the local level was associated with more innovation and that firms experiencing major obstacle in access to finance were less likely to innovate. Access to finance is more critical...

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• How Does International Competitiveness Affect Economic Development? A Two-Phase Hypothesis

  Publication

  • H. G. Adamkiewicz
  • S. M. Kot

  - Optimum. Studia Ekonomiczne - Year 2014

  This paper analyses the impact of international competitiveness on economic development, based on the World Economic Forum Global Competitiveness Index (GCI) and GDP/capita of 125 countries during the period 2007-2010. The results reveal two phases of the evolution of competitiveness. When GCI < 4.5 (on 1-7 scale), any improvement of a country’s competitiveness affects current development more than future development. When...

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• Badanie i analiza właściwości szeroko pasmowej sieci dostępowej BROADACCESS firmy ACNET

  Publication

  • D. J. Bem
  • M. Zientalski
  • R. J. Zieliński
  • T. W. Więckowski
  • R. Weisbrodt
  • L. Smoleński
  • L. Pikul
  • M. Miler
  • B. Miazga
  • H. Lasota

  - Year 2001

  Przedstawiono wyniki badań i analizę właściwości szerokopasmowej sieci dos-tępowej BROADACCES firmy ACNET. Zaprezentowano ogólną charakterystykę i ar-chitekturę systemu, badano instalację i realizowane usługi. Opracowano wnio-ski szczegółowe