Wyniki wyszukiwania dla: rotation on the circle

• Thermal buckling of functionally graded piezomagnetic micro- and nanobeams presenting the flexomagnetic effect

  Publikacja

  • M. Malikan
  • T. Wiczenbach
  • V. Eremeev

  - CONTINUUM MECHANICS AND THERMODYNAMICS - Rok 2022

  Galerkin weighted residual method (GWRM) is applied and implemented to address the axial stability and bifurcation point of a functionally graded piezomagnetic structure containing flexomagneticity in a thermal environment. The continuum specimen involves an exponential mass distributed in a heterogeneous media with a constant square cross section. The physical neutral plane is investigated to postulate functionally graded material...

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• Evaluation of the Possibility of Identifying a Complex Polygonal Tram Track Layout Using Multiple Satellite Measurements

  Publikacja

  • A. Wilk
  • C. Specht
  • W. Koc
  • K. Karwowski
  • J. Skibicki
  • J. Szmagliński
  • P. Chrostowski
  • P. S. Dabrowski
  • M. Specht
  • M. Zienkiewicz... i 3 innych

  - SENSORS - Rok 2020

  We present the main assumptions about the algorithmization of the analysis of measurement data recorded in mobile satellite measurements. The research team from the Gda´nsk University of Technology and the Maritime University in Gdynia, as part of a research project conducted in cooperation with PKP PLK (Polish Railway Infrastructure Manager), developed algorithms supporting the identification and assessment of track axis layout....

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• Influence of Shunt Compensation with SVC Devices on Resonance Risk in Power Systems

  Publikacja

  • R. Kowalak
  • R. Małkowski
  • S. Czapp
  • J. Klucznik
  • Z. Lubośny
  • K. Dobrzyński

  - Rok 2015

  Many analyses are required to locate a new reactive power source in a power system. The choice of a location is a very complex matter which requires various aspects to be considered. Selecting a location also entails the necessity to assess it from the point of view of the selected compensator’s structure as well as the system’s performance in various states with the new device on. The paper presents the issues of assessing compensator...

  Pełny tekst do pobrania w serwisie zewnętrznym

• New, fast and cheap prediction tests for BRCA1 gene mutations identification in clinical samples.

  Publikacja

  • A. Gajda-Walczak
  • A. Potęga
  • A. Kowalczyk
  • S. Sęk
  • S. Zięba
  • A. Kowalik
  • A. Kudelski
  • A. M. Nowicka

  - Scientific Reports - Rok 2023

  Despite significant progress in cancer therapy, cancer is still the second cause of mortality in the world. The necessity to make quick therapeutic decisions forces the development of procedures allowing to obtain a reliable result in a quick and unambiguous manner. Currently, detecting predictive mutations, including BRCA1, is the basis for effectively treating advanced breast cancer. Here, we present new insight on gene mutation...

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• Assessing unsignalised pedestrian crossings

  Publikacja

  • M. Budzyński
  • P. Tomczuk
  • T. Mackun

  - Rok 2018

  The lack of pedestrian safety on crossings is a complex problem and one that is influenced by a number of factors such as the law, road traffic culture, the road and traffic. This paper will focus on the last two by presenting a method for assessing pedestrian crossings for their geometry and roadside using data from 930 pedestrian crossings in Warsaw. The authors of this paper have attempted to systematise the process of assessment...

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• Designing of Track Axis Alignment with the Use of Satellite Measurements and Particle Swarm Optimization

  Publikacja

  • W. Koc
  • C. Specht
  • P. Chrostowski
  • K. Palikowska

  - Current Journal of Applied Science and Technology (British Journal of Applied Science & Technology) - Rok 2016

  Designing of the track’s alignment is a key issue from the point of view of maintaining of proper geometries. The paper presents a design method for sections of railway line located in the horizontal arch. The method is adapted to the technique of mobile satellite measurements. The general principles of this measurement method have been described in the article. A project's solution has been presented using mathematical notation...

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• Application of the IMO standard manoeuvres procedure for pod-driven ships

  Publikacja

  • M. Reichel

  - JOURNAL OF MARINE SCIENCE AND TECHNOLOGY - Rok 2019

  International Maritime Organisation (IMO) in the resolution MSC.137(76) Standards for Ship manoeuvrability presents the manoeuvring criteria that has to be satisfied by majority of seagoing ships. Together with the criteria, procedures for carrying out the manoeuvring tests are also presented. They however do not correspond directly to ships with non-conventional steering-propulsion devices, like pod drives. IMO is aware of this...

  Pełny tekst do pobrania w serwisie zewnętrznym

• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B37/#A35

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A39/#B41

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A35/#B37

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• Sulfammox process_task 1

  Dane Badawcze

  open access

  • D. Derwis (Grubba)
  • J. Majtacz

  Anaerobic ammonia-oxidizing bacteria have a more comprehensive metabolism thanexpected - there may be other electron acceptors that oxidize ammonium nitrogen under anaerobicconditions, in addition to the well-known nitrite nitrogen, one of which is sulfate in the sulfammoxprocess. Sulfate-containing compounds are part of the medium for the anammox process,...

• Fundamentals of Steam and Gas Turbines OASIV

  Kursy Online

  • J. Głuch

  Application of turbines in industry and sea power plants. Basic thermodynamics and fluid flow mechanics in turbomachinery. Steam turbine power cycle and plants. Gas turbine power cycle and plants. Turbine blading systems operation.

• The significance of the underground experience: Selection of reference design cases from the underground public transport stations and interchanges of the European Union

  Publikacja

  • K. Juchnevič
  • F. Hoeven

  - TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY - Rok 2016

  Abstract Background Recent research into the way public transport users appreciate stations and interchanges has highlighted several key aspects. Importantly, the optimization of these facilities should not simply aim to resolve dissatisfiers, but should also focus on addressing satisfiers, through the incorporation of factors such as comfort and experience. ‘Soft requirements,’ which have emerged in architecture and urban design,...

• Zarządzanie zasobami ludzkimi (AG II niestacjonarne on-line)

  Kursy Online

  • Ł. Sienkiewicz

• Analiza ryzyka ekonomicznego (on-line) lato 2024 JW

  Kursy Online

  • K. Flisikowski
  • P. Kasprzak
  • A. B. Mikulska

  Kurs prowadzony przez dr Jarosława Wróblewskiego

• NST FILOZOFIA ZI/4 on line - 2024 lato

  Kursy Online

  • E. Hope

• FINANSE ORGANIZACJI GOSPODARCZYCH 2024/2025 - zim (on-line)

  Kursy Online

  • O. Melnychenko

• Elementy Prawa niestacjonarne 2023- AG, ZI on-line

  Kursy Online

  • M. Zaborowski

• WPROWADZENIE DO FINANSÓW (ON-LINE) sem. letni 2024

  Kursy Online

  • O. Melnychenko

• Praktyka budowlana/Construction on site training 2022/2023

  Kursy Online

  • B. Konarzewska

• Kompleksowe Zarządzanie Jakością nstac. 2024/2025 ON-LINE

  Kursy Online

  • P. Grudowski
  • A. Wendt

• Thermodynamic analysis of the Compressed Air Energy Storage system coupled with the Underground Thermal Energy Storage

  Publikacja

  • R. Hyrzyński
  • P. Ziółkowski
  • S. Gotzman
  • B. Kraszewski
  • J. Badur

  - E3S Web of Conferences - Rok 2019

  Improvement of flexibility is one of the key challenges for the transformation of the Polish Power System aiming at a high share of renewable energy in electricity generation. Flexible and dispatchable power plants will contribute to this ongoing transformation process as they compensate for fluctuations in electricity generation from renewable energy sources such as wind and photovoltaics. In this context, CAES storage tanks are...

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• Negative carbon dioxide gas power plant integrated with gasification of sewage sludge

  Publikacja

  • P. Ziółkowski
  • K. Stasiak
  • M. Amiri
  • D. Mikielewicz

  - ENERGY - Rok 2023

  One of the primary objectives of the negative carbon dioxide gas power plant (nCO2PP) is to develop an innovative technology confirming the possibility of the use of sewage sludge to produce electricity while having a positive impact on the environment. In this paper, a mathematical model is presented to estimate thermodynamic parameters of the system in relation to the gasification process and changes in such parameters in the...

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• Hysteresis curves for some periodic and aperiodic perturbations in magnetosonic flow

  Publikacja

  • A. Perelomova

  - PHYSICS OF PLASMAS - Rok 2020

  A thermodynamic relation between perturbations of pressure and mass density in the magnetohydrodynamic flow is theoretically studied. Planar magnetohydrodynamic perturbations with the wave vector, which forms a constant angle with the equilibrium magnetic field, are under study. The theory considers thermal conduction of a plasma and the deviation from adiabaticity of a flow due to some kind of heating–cooling function. It also...

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• Criteria for selection of working fluid in low-temperature ORC

  Publikacja

  • D. Mikielewicz
  • J. Mikielewicz

  - Chemical and Process Engineering : New Frontiers - Rok 2016

  The economics of an ORC system is strictly linked to thermodynamic properties of the working fluid. A bad choice of working fluid could lead to a less efficient and expensive plant/generation unit. Some selection criteria have been put forward by various authors, incorporating thermodynamic properties, provided in literature but these do not have a general character. In the paper a simple analysis has been carried out which resulted...

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• Application of the numerical-analytic method for systems of differential equations with parameter

  Publikacja

  • T. Jankowski

  - Ukrainian Mathematical Journal - Rok 2002

  The numerical-analytic method is applied to systems of differential equations with parameter under the assumption that the corresponding functions satisfy the Lipschitz conditions in matrix notation. We also obtain several existence results for problems with deviations of an argument

• Head movement compensation algorithm in multi-display communication by gaze

  Publikacja

  • T. Kocejko
  • J. Wtorek
  • J. Rumiński
  • A. Bujnowski

  - Rok 2014

  An influence of head movements on the gaze estimation accuracy when using a head mounted eye tracking system is discussed in the paper. This issue has been examined for a multi-display environment. It was found that head movement (rotation) to some extent does not influence on the gaze estimation accuracy seriously. Acceptable results were obtained when using eye-tracker to communicate with a computer via in two displays simultaneously.

  Pełny tekst do pobrania w serwisie zewnętrznym

• Analiza właściwości rozszerzonego obserwatora prędkości maszyny indukcyjnej

  Publikacja

  • D. Wachowiak

  - Rok 2016

  Rozszerzony obserwator prędkości został zaproponowany przez prof. Krzemińskiego i jest oparty na rozszerzonym modelu maszyny indukcyjnej, gdzie wprowadzona został nowa zmienna ζ. Jest to nowe podejście do estymacji zmiennych stanu maszyny indukcyjnej i nie wszystkie problemy zostały do tej pory rozwiązane. Zaproponowano wykorzystanie algorytmów ewolucyjnych do doboru wzmocnień obserwatora. W celu redukcji nakładów obliczeniowych...

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• Firing map for periodically and almost-periodically driven integrate-and-fire models: a dynamical systems approach

  Publikacja

  • J. Signerska-Rynkowska

  - Rok 2012

  We consider the Leaky Integrate-and-Fire and Perfect Integrator models of neuron’s dynamics with the input function being periodic and almost-periodic (in the sense of Stepanov). In particular we analyze properties and dynamics of the so-called firing map, which iterations give timings of consecutive spikes of a neuron. In case of a periodic input function we provide a detailed description of the sequence of interspike-intervals,...

• Równolegle przebiegające procesy separacji pianowej jonów Al(III), Cu(II) i Zn(II) z roztworów ich mieszanin

  Publikacja

  • P. Rybarczyk

  - Rok 2015

  Metody flotacji jonowej i precypitacyjnej należą do procesów separacji pianowej, wykorzystujących zdolność selektywnej adsorpcji niektórych składników roztworu na powierzchni międzyfazowej gaz – ciecz. Do zalet separacji pianowej zalicza się m.in. niewysokie koszty inwestycyjne i eksploatacyjne oraz wysoką skuteczność w obróbce roztworów rozcieńczonych. Celem pracy jest ocena wpływu kluczowych parametrów na wydajność i przebieg...

• Incorporating Iris, Fingerprint and Face Biometric for Fraud Prevention in e-Passports Using Fuzzy Vault

  Publikacja

  • K. Bobkowska
  • K. A. Nagati
  • M. Przyborski

  - IET Image Processing - Rok 2019

  A unified frame work which provides a higher security level to e-passports is proposed. This framework integrates face, iris and fingerprint images. It involves three layers of security: the first layer maps a biometric image to another biometric image which is called biostego image. Three mapping schemes are proposed: the first scheme maps single biometric image to single biostego image, the second scheme maps dual biometric images...

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• Clean gas technologies - towards zero-emission repowering of Pomerania.

  Publikacja

  • P. Ziółkowski
  • J. Badur

  - Transactions of the Institute of Fluid-Flow Machinery - Rok 2013

  The main aim this work is to show the different thermodynamic cycles which improve efficiency and/or decrease emission like: Cheng cycle, Szewalski cycle, LOTHECO cycle, hybrid pSOFC/GT cycle, inverse Brayton cycle, low-emission cycle and zero-emission cycle. For that purpose, cycles and results of analysis are first studied and, secondly, new concept is presented. The role of coupled analysis 0D and 3D in cycle’s devices is also...

• Video traffic data - Interchange Sulno (S1-94), Poland

  Dane Badawcze

  open access

  • W. Kustra
  • D. Bytner
  • A. Romanowska
  • J. Wachnicka
  • T. Mackun
  • K. Jamroz

  - seria: Modern methods for calculating capacity and assessing traffic conditions for roads outside urban areas, including high-speed roads

  The data includes video traffic data registered with 8 video cameras at weaving area (weaving section type A) of the Sulno interchange within S1 expressway  in Poland (interchange of expressway  S1 and national road 94), located in the Silesian Agglomeration. The data covers the two days: 12.09.2017 (expressway  S1) and 13.09.2017 (road 94).

• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B48/#A45

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B41/#A39

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• CrN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A23/#B22

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration 12 min. The...

• TiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B39/#A41

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• SiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B34/#A33

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A45/#B48

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• TiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A41/#B39

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC  over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The...

• CrN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A25/#B21

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• CrN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #B22/#A23

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN over CrN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  6 min. The test...

• SiC coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A33/#B34

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. distilled water lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC  over SiC. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  3 min. The test...

• [Soft Skills] 2022 Didactic methods in the modern teaching process

  Kursy Online

  • M. Sokół
  • J. Mytnik

• Al(III) and Cu(II) simultaneous foam separation: Physicochemical problems

  Publikacja

  • B. Kawalec-Pietrenko
  • P. Rybarczyk

  - CHEMICAL PAPERS - Rok 2014

  Simultaneous removal of Al(III) and Cu(II) from dilute aqueous solutions by ion and precipitate flotation methods is investigated. Influence of the pH of the initial solution, the surface active collector concentration and the gas flow rate on the final removal ratio and the course of ion and precipitate flotations is presented. Results show that simultaneous flotations of Al(OH)3 and Cu(OH)2 insoluble species occur allowing to...

  Pełny tekst do pobrania w portalu

• Exercise bike powered electric generator for fitness club appliances

  Publikacja

  • R. Strzelecki
  • M. Jarnut
  • G. Benysek

  - Rok 2007

  A generator powered by a stationary bicycle for the purposes of generating electricity for fitness club appliances is considered. A generator is connected to a stationary bicycle in such a way as the circular rotation of the front wheel rotates the coils of wires inside the generator between the poles of the magnets inside the generator. The resulting Direct Current is channeled to the attached battery bank and converted into different...

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• Receiver-side fingerprinting method based on quaternion sandwich product

  Publikacja

  • B. Czaplewski
  • R. Rykaczewski

  - Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne - Rok 2014

  In this paper a new receiver-side fingerprinting method for color images is proposed. The proposed method belongs to the group of Joint Fingerprinting and Decryption (JFD) methods. Each component of the color image is represented as a point in 3D space, which is formed by 3 color channels. Encryption and fingerprinting can be interpreted as rotation, scaling and translation of these points. Calculations are performed using quaternion...

• INFLUENCE OF INLET GEOMETRY ON THE EFFICIENCY OF 1MW STEAM TURBINE

  Publikacja

  • A. Koprowski
  • D. Gotowski
  • R. Rządkowski
  • R. Szczepanik

  - Journal of KONES - Rok 2019

  The process of the design of the 1MW steam turbine includes designing the stator and rotor blades, the steam turbine inlet and exit, the casing and the rotor. A turbine that operates at rotation speeds other than 3000 rpm requires a gear box and generator with complex electronic software. This paper analyses the efficiency of eight turbine variants, including seven inlet geometries and three stages of stator as well as an eight...

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• Nonlinear FEM analysis of irregular shells composed of fiber metal laminates

  Publikacja

  • J. Chróścielewski
  • S. Burzyński
  • A. Sabik
  • B. Sobczyk
  • W. Witkowski

  - Rok 2018

  The paper deals with the analysis of failure initiation in shells made of Fiber Metal Laminates (FML). The elas-tic material law for orthotropic lamina is stated accounting for asymmetric in-plane stress and strain measures. The asymmetry results from the employed general nonlinear 6-field shell theory where the generalized dis-placements involve the translation and the proper rotation field. The novelty of the presented results...

• A few steps more towards NPT bound entanglement

  Publikacja

  • Ł. Pankowski
  • M. Piani
  • M. Horodecki
  • P. Horodecki

  - IEEE TRANSACTIONS ON INFORMATION THEORY - Rok 2010

  In this paper, existence of bound entangled states with nonpositive partial transpose (NPT) is considered. As one knows, existence of such states would in particular imply nonadditivity of distillable entanglement. Moreover, it would rule out a simple mathematical description of the set of distillable states. The particular state, known to be 1-copy nondistillable and supposed to be bound entangled, is considered. The problem of...

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