Search results for: early stage of injection

• Modified SPWM Technique with Zero-Sequence Voltage Injection for a Five-Phase, Three-Level NPC Inverter

  Publication

  • C. Odeh
  • D. Kondratenko
  • A. Lewicki
  • A. Jąderko

  - ENERGIES - Year 2021

  This article presents a modified sinusoidal pulse-width modulation (SPWM) scheme for a five-phase, three-level neutral-point-clamped inverter. The modulation scheme deploys a modified min–max function to inject the zero-sequence components into the reference modulating signals; hence enabling the effective utilization of the DC-link voltage. Balanced split-input DC-link voltages were achieved through further incorporation of adjustable...

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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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• Optimized Space Vector Modulation strategy for five phase voltage source inverter with third harmonic injection

  Publication

  • A. Lewicki
  • P. Strankowski
  • M. Morawiec
  • J. Guziński

  - Year 2017

  This paper presents a simple and an effective SVM algorithm for five-phase Voltage-Source Inverters with the possibility to control independently the voltage vectors for fundamental and auxiliary orthogonal subspaces. The essential benefit is that output voltage is generated using only four active voltage vectors with limited numbers of switching. In the proposed solution, four active vectors are arbitrary chosen, independent of...

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• Early Childhood Education Journal

  Journals

  ISSN: 1082-3301 , eISSN: 1573-1707

• Early Modern Literary Studies

  Journals

  ISSN: 1201-2459

• Early Child Development and Care

  Journals

  ISSN: 0300-4430 , eISSN: 1476-8275

• Journal of Early Christian Studies

  Journals

  ISSN: 1067-6341 , eISSN: 1086-3184

• Early Popular Visual Culture

  Journals

  ISSN: 1746-0654 , eISSN: 1746-0662

• Contemporary Issues in Early Childhood

  Journals

  ISSN: 1463-9491

• Journal of Early Childhood Literacy

  Journals

  ISSN: 1468-7984 , eISSN: 1741-2919

• Journal of Early American History

  Journals

  ISSN: 1877-0223 , eISSN: 1877-0703

• Journal of Early Christian History

  Journals

  ISSN: 2222-582X , eISSN: 2471-4054

• EARLY CHILDHOOD RESEARCH QUARTERLY

  Journals

  ISSN: 0885-2006 , eISSN: 1873-7706

• Journal of Early Childhood Research

  Journals

  ISSN: 1476-718X , eISSN: 1741-2927

• Journal of Early Modern Studies

  Journals

  ISSN: 2279-7149

• Early Modern French Studies

  Journals

  ISSN: 2056-3035

• International Journal of Early Childhood

  Journals

  ISSN: 0020-7187 , eISSN: 1878-4658

• Early Modern Low Countries

  Journals

  eISSN: 2543-1587

• Journal of Early Modern Christianity

  Journals

  ISSN: 2196-6648

• Inventory of the eastern wall of the presbytery of the former Dominican church - St. Mary's Church in Elbląg, stage from 2015.

  Open Research Data

  open access

  • J. Borucka
  • P. Samól

  The drawing presents an inventory of the eastern wall of the presbytery of the former Dominican church - St. Mary's Church in Elbląg (now Art Gallery: Galeria EL), stage from 2015.The drawing also indicates the original, not overfolded during subsequent conservation and construction works, fragments of walls from 3 medieval stages of construction.

• Fpga implementation of the two-stage high-speed fir filter in residue arithmetic

  Publication

  • M. Czyżak
  • R. Smyk

  - Elektronika : konstrukcje, technologie, zastosowania - Year 2011

  w pracy przedstawiono implementację szybkiego, dwustopniowego kaskadowego filtru fir w technologii fpga z użyciem arytmetyki resztowej. zastosowanie arytmetyki resztowej pozwala na uzyskanie dużych częstotliwości potokowania w związku z użyciem małych mnożników. zalety arytmetyki resztowej są ograniczane w pewnym stopniu koniecznością wykonywania skalowania po pierwszym stopniu filtru celem uniknięcia nadmiaru arytmetycznego. w...

• Performance Evaluation of a Single-Stage Two-Bed Adsorption Chiller With Desalination Function

  Publication

  • K. Sztekler
  • W. Kalawa
  • W. Nowak
  • Ł. Mika
  • J. Krzywański
  • K. Grabowska
  • M. Sosnowski
  • A. Alharbi

  - JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME - Year 2021

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• An adaptive neuro-fuzzy model of a re-heat two-stage adsorption chiller

  Publication

  • J. Krzywanski
  • K. Grabowska
  • M. Sosnowski
  • A. Zylka
  • K. Sztekler
  • W. Kalawa
  • T. Wojcik
  • W. Nowak

  - Thermal Science - Year 2019

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• Selected aspects of palliative care and quality of life at the terminal stage of neoplastic disease

  Publication

  • P. Farbicka
  • A. Nowicki

  - Contemporary Oncology/Współczesna Onkologia - Year 2012

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• Two-stage procedure of building a spatial weight matrix with the consideration of economic distance

  Publication

  • M. B. Pietrzak

  - Oeconomia Copernicana - Year 2010

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• Single chamber solid oxide fuel cell - current stage of development and prospects

  Publication

  • P. Jasiński

  - Year 2005

  Ogniwa paliwowe należą do jednego z najbardziej wydatnych żródeł energii. W konwencjonalnych ogniwach paliwo i powietrze są dostarczane do ogniwa oddzielnie. Jednokomorowych ogniwo dziala zasilane mieszanina paliwa i powietrza. W pracy przedstawiono obecny stan i perspektywy dlaszego rozwoju jednokomorowych tlenkowych ogniw paliwowych.

• Influence of electric, magnetic and electromagnetic fields on the circadian system – current stage of knowledge

  Publication

  • B. Lewczuk
  • G. Redlarski
  • A. Żak
  • N. Ziółkowska
  • B. Przybylska-Goronowicz
  • M. Krawczuk

  - JOURNAL OF BIOMEDICINE AND BIOTECHNOLOGY - Year 2014

  One of the side effects of each electrical device work is the electromagnetic field generated near its workplace. All organisms, including humans, are exposed daily to the influence of different types of this field, characterized by various physical parameters. Therefore, it is important to accurately determine the effects of an electromagnetic field on the physiological and pathological processes occurring in cells, tissues and...

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• Modelling of the Baumann turbine stage operation Part II. Free and kinetic vibrations

  Publication

  • K. Jesionek
  • J. Kron
  • W. Zakrzewski
  • D. Sławiński
  • S. Kornet
  • P. Ziółkowski
  • J. Badur

  - ARCHIWUM ENERGETYKI / ARCHIVES OF ENERGETICS - Year 2013

  In this paper has been presented a methodology of validation a novel mathematical model dedicated to evaluation and prediction of material degradation and demage of steam turbine elements such as blades, valves and pipes due to three mechanisms: stress-corosion, high-temperature creep and low-cyclic fatigue. The validation concept is based on an experimental setup manufactured in the Laboratory of Faculty of Mechanical and Power...

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• FPGA realization of high-speed multi-stage FIR filter in residue arithmetic

  Publication

  • M. Czyżak
  • R. Smyk

  - Year 2011

  W pracy przedstawiono implementację szybkiego wielostopniowego, kaskadowego filtru FIR w technologii FPGA. Zastosowanie arytmetyki resztowej pozwala na uzyskanie dużych częstotliwości próbkowania w zwiżaku z użyciem małych mnożników. Zalety wynikające z uzycia arytmetyki resztowej sa w pewnym stopniu ograniczne koniecznością wykonania skalowania przy kaskadowym połaczeniu filtrów FIR, tak aby uniknąć nadmiaru arytmetycznego. W...

• Analog CMOS processor for early vision processing with highly reduced power consumption

  Publication

  • W. Jendernalik
  • J. Jakusz
  • G. Blakiewicz
  • R. P. Piotrowski
  • S. Szczepański

  - Year 2011

  A new approach to an analog ultra-low power visionchip design is presented. The prototype chip performs low-levelconvolutional image processing algorithms in real time. Thecircuit is implemented in 0.35 μm CMOS technology, contains64 x 64 SIMD matrix with embedded analogue processors APE(Analogue Processing Element). The photo-sensitive-matrix is of2.2 μm x 2.2 μm size, giving the density of 877 processors permm2. The matrix dissipates...

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• Changes of augmentation index early after ischaemic stroke predict functional outcome

  Publication

  • K. Kowalczyk
  • B. Jabłoński
  • M. Kwarciany
  • B. Karaszewski
  • K. Narkiewicz
  • D. Gąsecki

  - BLOOD PRESSURE - Year 2020

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• Pulse wave velocity is associated with early clinical outcome after ischemic stroke

  Publication

  • D. Gąsecki
  • A. Rojek
  • M. Kwarciany
  • K. Kowalczyk
  • P. Boutouyrie
  • W. Nyka
  • S. Laurent
  • K. Narkiewicz

  - ATHEROSCLEROSIS - Year 2012

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• 314 Osteopontin as a Potential Serum Marker in Early Breast Cancer-Preliminary Results

  Publication

  • E. Nowicka
  • A. Chmura
  • R. Deja
  • M. Pietrowska
  • K. Behrendt
  • J. Mrochem-Kwarciak
  • B. Maslyk
  • J. Polanska
  • P. Widlak
  • R. Tarnawski
  • J. Polanska

  - EUROPEAN JOURNAL OF CANCER - Year 2012

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• Association of Oral Status and Early Primary Hypertension Biomarkers among Children and Adolescents

  Publication

  • E. Paszynska
  • M. Dmitrzak-Weglarz
  • D. Ostalska-Nowicka
  • M. Nowicki
  • M. Gawriolek
  • J. Zachwieja

  - International Journal of Environmental Research and Public Health - Year 2020

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• Deep Infiltrating Endometriosis in Adolescence: Early Diagnosis and Possible Prevention of Disease Progression

  Publication

  • F. Martire
  • M. Giorgi
  • C. D’Abate
  • I. Colombi
  • A. Ginetti
  • A. Cannoni
  • F. Fedele
  • C. Exacoustos
  • G. Centini
  • E. Zupi
  • L. Lazzeri

  - Journal of Clinical Medicine - Year 2024

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• Pathological Changes in Early Medieval Horses from Different Archaeological Sites in Poland

  Publication

  • M. Janeczek
  • D. Makowiecki
  • A. Rozwadowska
  • W. Chudziak
  • E. Pasicka

  - Animals - Year 2024

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• 3D DEM SIMULATIONS OF BASIC GEOTECHNICAL TESTS WITH EARLY DETECTION OF SHEAR LOCALIZATION.

  Publication

  • A. Grabowski
  • M. Nitka

  - Studia Geotechnica et Mechanica - Year 2021

  W artykule przedstawiono rezultaty numeryczne dla podstawowych testów geotechnicznych: testu trójosiowego ściskania oraz w aparacie bezpośredniego ścinania dla piasku bez kohezji. Wszystkie testy zostały wykonane w 3D, a piasek został wymodelowany w postaci kulek wraz z momentami symulującymi nieregularny kształt ziarna. Podczas badań sprawdzono wpływ parametrów fizycznych (m. in. początkowy wskaźnik porowatości, obciążenie pionowe...

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• The influence of phosphorus fractions in bottom sediments on phosphate removal in semi-natural systems as the 3rd stage of biological wastewater treatment

  Publication

  • A. Lang
  • K. Kołecka
  • B. Quant

  - ECOLOGICAL ENGINEERING - Year 2013

  The research was carried out in two semi-natural systems (the polishing ponds in Swarzewo and the free water surface constructed wetland in Zarnowiec) in Poland. They were built as the 3rd stage of a conventional mechanical–biological wastewater treatment plant. These systems were built to improve the quality of the effluent of treated wastewater. In the polishing ponds and FWS wetland system, suspended solids, organic matter as...

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• The efficiency and technological reliability of biogenic compounds removal during long-term operation of a one-stage subsurface horizontal flow constructed wetland

  Publication

  • K. Jóźwiakowski
  • P. Bugajski
  • K. Kurek
  • M. De
  • M. Almeida
  • T. Siwiec
  • G. Borowski
  • W. Czekała
  • J. Dach
  • M. Gajewska

  - SEPARATION AND PURIFICATION TECHNOLOGY - Year 2018

  The paper presents the results of a study of the efficiency and technological reliability of total nitrogen and total phosphorus removal during long term operation of a one-stage constructed wetland system with subsurface horizontal wastewater flow. The flow rate of the wastewater treatment plant was 1.2m3/d during the research period. Physical and chemical analyses of raw wastewater and treated effluent were carried out in the...

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• Design-Oriented Two-Stage Surrogate Modeling of Miniaturized Microstrip Circuits with Dimensionality Reduction

  Publication

  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • M. Al-hasan

  - IEEE Access - Year 2020

  Contemporary 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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• Analysis of Validation and Simplification of Timber-Frame Structure Design Stage with PU-Foam Insulation

  Publication

  • M. Szczepański
  • W. Migda

  - Sustainability - Year 2020

  The 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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• Enhancing human performance in ship operations by modifying global design factors at the design stage

  Publication

  • J. Montewka
  • F. Goerlandt
  • G. Innes-Jones
  • D. Owen
  • Y. Hifi
  • R. Puisa

  - RELIABILITY ENGINEERING & SYSTEM SAFETY - Year 2017

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• Stage of liver fibrosis in patients with congenital bleeding disorders and infected with hepatitis C virus

  Publication

  • M. Kucharska
  • U. Zaleska-Dorobisz
  • A. Szymczak
  • M. Inglot
  • W. Rymer
  • M. Zalewska
  • K. Małyszczak
  • M. Kuliszkiewicz-Janus
  • M. Inglot

  - Polish Archives of Internal Medicine - Year 2017

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• Prognostic value of stage IV neuroblastoma metastatic immunophenotype in the bone marrow: preliminary report

  Publication

  • M. Nowicki

  - JOURNAL OF CLINICAL PATHOLOGY - Year 2006

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• Influence of H2S on degradation of 9Cr-1Mo steel in advanced stage of metal dusting process

  Publication

  • J. Dampc
  • Z. Grzesik
  • J. Hucińska

  - Advances in Materials Science - Year 2007

  Przedstawiono 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...

• Introducing Bentonite into the Environment in the Construction Stage of Linear Underground Investment Using the HDD Method

  Publication

  • U. Kwast-Kotlarek
  • M. Hełdak
  • J. Szczepański

  - Applied Sciences-Basel - Year 2018

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• Treatment of high-quality groundwater by means of one-stage filtration on active filtration beds

  Publication

  • R. T. Bray
  • E. Łasińska

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Year 2007

  Przeprowadzone 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...

• Novel method of initiation stage of stress corrosion cracking monitoring with respect to marine constructions

  Publication

  • K. Darowicki
  • J. Orlikowski
  • A. Arutunow
  • W. Jurczak

  - Year 2005

  Korozja 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...

• On a risk-based method for safety assessment of a ship in critical conditions at the preliminary design stage.

  Publication

  • M. K. Gerigk

  - Year 2004

  W 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.

• Design of highly linear tunable CMOS OTA using a linearizing differentialpair in the output stage.

  Publication

  • S. Kozieł
  • S. Szczepański

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Year 2002

  W 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.