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Wyświetlanie 1-15 z 18
Tytuł:
Analysis of traction characteristics of the motor car Fiat Panda equipped with a 1,3 16 V Multijet engine
Analiza wlasnosci trakcyjnych samochodu Fiat Panda wyposazonego w silnik 1,3 16 V Multijet
Autorzy:
Golebiewski, W.
Stoeck, T.
Powiązania:
https://bibliotekanauki.pl/articles/792338.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
traction characteristics
vehicle
motion theory
combustion engine
external characteristics
engine
motor car
Fiat Panda
1.3 16 V Multijet engine
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traction qualities of a motor car Fiat Panda equipped with a 1.3 16 v Multijet engine
Wlasnosci trakcyjne samochodu Fiat Panda wyposazonego w silnik 1,3 16 v Multijet
Autorzy:
Golebiewski, W.
Stoeck, T.
Powiązania:
https://bibliotekanauki.pl/articles/793746.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
vehicle
traction characteristics
motor car
Fiat Panda
1.3 16 V Multijet engine
motion theory
combustion engine
engine
external characteristics
Opis:
In this paper was presented traction qualities of a Fiat Panda car equipped with a 1.3 16 V Multijet engine. Characteristics of the full power of the 1.3 JTD engine was prepared, along with a selection of the trend curves. On the basis of the moment curve from that graph and the car basic data, traction characteristic of the vehicle was created. It was proven a dependence of the propulsive force on the vehicle’s linear velocity. On that basis, such traction qualities of the Fiat Panda, as its ability to accelerate, to drive upon hills and its achieving the maximum speed, were analyzed.
W artykule przedstawiono własności trakcyjne samochodu Fiat Panda wyposażonego w silnik 1,3 16 V Multijet. Wykonano charakterystykę pełnej mocy silnika 1,3 JTD wraz z doborem krzywych trendu. Na podstawie krzywej momentu z tego wykresu oraz podstawowych danych pojazdu wyznaczono charakterystykę trakcyjną pojazdu. Była to zależność siły napędowej od prędkości liniowej pojazdu. Na jej podstawie analizowano własności trakcyjne pojazdu Fiat Panda, takie jak: zdolność przyspieszania, możliwość pokonywania wzniesień oraz uzyskiwanie maksymalnej prędkości.
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11C
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulative comparison of the traction properties of Daewoo Lublin 3 Mi van with particular types of gearbox
Autorzy:
Prajwowski, K.
Gołębiewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/244475.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
traction characteristics of a vehicle
theory of motion
combustion engines
external characteristic of an engine
power transmission system
Opis:
A problem of comparing the traction properties of Daewoo Lublin 3 Mi van with respective types of gearbox has been taken up in the paper. There were three gearbox types: TS5-21, PD.97 and ZF. These properties were concluded based on vehicle traction graph. They included: reaching the reserve driving force in respective gears, obtaining accelerations, overcoming the resistances to motion (rolling resistance, air resistance and grade resistance) as well as achieving the maximum speed. Vehicle traction diagram has been made based on the torque curve of Andoria 4CTi90 engine external characteristics obtained on engine test bed in a direct way using an AVL eddy current brake. The engine was supplied with a complete fuel dose and loaded with the resistance torque produced by engine brake. The characteristics was performed every 200 rpm from 1000 rpm to maximum revolutions and the other way from maximum revolutions to 1000 rpm every 200 rpm. The torque characteristics points were determined as a mean value obtained from these two measurements. After considering the data from engine external characteristics, vehicle information (including, among others, respective gear ratios and final drive ratio, under-the-bonnet power loss coefficient, and dynamic wheel radius) and the resistances to motion, a vehicle traction diagram of Daewoo Lublin 3 Mi van was made for three types of gearboxes. Based on this, the authors found that a Daewoo Lublin 3 Mi van equipped with ZF gearbox is the best from the point of view of traction properties.
Źródło:
Journal of KONES; 2011, 18, 1; 483-490
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Główne nurty w badaniach nad filmem i religią
Main directions in film and religion studies
Autorzy:
Domalewski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/2135406.pdf
Data publikacji:
2021-12-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
motion pictures – religious aspects
religion in motion pictures
postsecularism
film theory
Opis:
The article is a meta-study and provides an original typology of research on film and religion, based on Polish and English academic sources. The author proposes to divide this field of research into four main domains, which he names successively: substantial-theological, anthropological-mythological, socio-cultural and post-secular. The following descriptive criteria were used to introduce this division: the relationship between religion and culture adopted (usually implicitly) in a given direction of research, the concept of both human and religion emerging from them, and the established subject and scope of research, as well as the basic set of tools used within them. The proposed systematic is intended to help capture the significant differences between the main types of research on film and religion, both in terms of research assumptions, methods of analysis, and set goals.
Źródło:
Images. The International Journal of European Film, Performing Arts and Audiovisual Communication; 2021, 30, 39; 5-25
1731-450X
Pojawia się w:
Images. The International Journal of European Film, Performing Arts and Audiovisual Communication
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vehicle navigation in populated areas using predictive control with environmental uncertainty handling
Autorzy:
Skrzypczyk, K.
Mellado, M.
Powiązania:
https://bibliotekanauki.pl/articles/229599.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
motion planning
prediction
uncertainty handling
game theory
Opis:
This paper addresses the problem of navigating an autonomous vehicle using environmental dynamics prediction. The usefulness of the Game Against Nature formalism adapted to modelling environmental prediction uncertainty is discussed. The possibility of the control law synthesis on the basis of strategies against Nature is presented. The properties and effectiveness of the approach presented are verified by simulations carried out in MATLAB.
Źródło:
Archives of Control Sciences; 2017, 27, 2; 351-359
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adequate Theory of Vertical Motion of a Mass-Elastic System
Autorzy:
Pluta, Z.
Hryniewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/412071.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Theory of oscillation motion
Vertical mass-elastic system
Free harmonic oscillator motion
potential field
force characteristics
Source equation of path/way length
time constant
Opis:
The paper covers an adequate theory on vertical motion of the mass-elastic system. This system is an oscillator with the motion being a free harmonic motion. The first extended link of the consideration presents a critical analysis of the existent knowledge referred to this subject. Then the energetic states of the oscillator have been determined. Next the force characteristics of the free harmonic motion of the oscillator are presented. A general source equation of the path/way length and the resulting detailed forms, signalizing extensive possibilities to build up the characteristics, have been presented. Finally the connections between the characteristics of real and simulative motions were derived. It should be added that this first mentioned motion is the subject of adequate description presented here. The simulated motion is referred to the existent classical theory which has been subjected under a critical consideration.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 6; 116-136
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stress equations of motion of Ignaczak type for the second axisymmetric problem of micropolar elastodynamics
Autorzy:
Dyszlewicz, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1339178.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
stress equations of motion problem (SEMP)
micropolar elasticity theory
Opis:
A second axially-symmetric initial-boundary value problem of linear homogeneous isotropic micropolar elastodynamics in which the displacement and rotation take the forms $\underline{u}=(0,u_θ,0)$, $\underline{φ}=(φ_r,0,φ_z)$ ((r,θ,z) are cylindrical coordinates; cf. [17]) is formulated in a pure stress language similar to that of [12]. In particular, it is shown how $\underline{u}$ and $\underline{φ}$ can be recovered from a solution of the associated pure stress initial-boundary value problem, and how a singular solution corresponding to harmonic vibrations of a concentrated body couple in an infinite space can be obtained from the solution of a pure stress problem.
Źródło:
Applicationes Mathematicae; 1996-1997, 24, 3; 251-265
1233-7234
Pojawia się w:
Applicationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Marian Smoluchowski’s Contributions to the Philosophy of Causation
Autorzy:
Roskal, Zenon
Powiązania:
https://bibliotekanauki.pl/articles/450147.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Historii Nauki im. Ludwika i Aleksandra Birkenmajerów
Tematy:
Marian Smoluchowski
causality principle
Brownian motion
causal relevance
transference theory
Opis:
Marian Smoluchowski was a prominent Polish physicist whose greatest achievement was the development – independently of Albert Einstein – of the mathematical theory of Brownian motion. In his theoretical view of the problem of Brownian motion Smoluchowski employed the concept of causal relevance, which was never analysed in numerous publications devoted to his scientific achievement. In this article I am attempting to demonstrate that the concept of causal relevance which Smoluchowski employed in his works devoted to the issue of Brownian motion may be interpreted as analogous to the concept of causal relevance articulated by Max Kistler. I present a number of arguments which demonstrate that just such a concept of causal relevance was established by Smoluchowski. Since the explanation of the phenomenon of Brownian motion presented by Smoluchowski has been universally accepted, so in the same way the physicalistic concept of causal relevance has been widely propagated. In this I detect Smoluchowski’s contribution to the philosophy of causality.
Źródło:
Organon; 2018, 50; 5-18
0078-6500
Pojawia się w:
Organon
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of seakeeping performance for a case study vessel by the strip theory method
Autorzy:
Niklas, Karol
Karczewski, Artur
Powiązania:
https://bibliotekanauki.pl/articles/1573815.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship design
seakeeping
ship motion
added resistance
towing tank
strip theory
Opis:
The increase of seakeeping performance is of particular importance for car and passenger ferries, service ships in the gas and oil extraction industry and offshore wind power farm industry, as well as for special purpose ships (including military applications). In the water areas of the Baltic Sea, North Sea, and Mediterranean Sea, which are characterised by a short and steep wave, the hull shape has a substantial impact on the operational capacity and propulsion efficiency of the ship, as well as on comfort and safety of navigation. The article analyses selected aspects of seakeeping for four variants of a selected case study vessel, indicating practical limitations of the strip method. The analysed aspects included hull heaving and pitching, added resistance, Motion Thickness Indicator (MSI), and Subjective Magnitude (SM). Experimental tests were also performed in the towing tank. Their comparison with the numerical results has indicated high inaccuracy of the strip method. What is more, the simplified representation of hull shape used in the strip method makes it impossible to analyse the effect of hull shape changes on the predicted seakeeping characteristics. Especially for the case of head wave, neglecting highly non-linear phenomena, such as slamming or head wave breaking, in strip method-based computer simulations will significantly decrease the reliability of the obtained results. When using the strip method, the seakeeping analysis should be complemented with model tests in a towing tank, or by another more complex numerical analysis, such as CFD for instance.
Źródło:
Polish Maritime Research; 2020, 4; 4-16
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High-speed catamaran’s longitudinal motion attenuation with active hydrofoils
Autorzy:
Hu, K.
Ding, Y.
Wang, H.
Powiązania:
https://bibliotekanauki.pl/articles/259910.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
High-speed catamaran
longitudinal motion attenuation
2.5D theory
hydrofoil
Opis:
This paper mainly studies the longitudinal motion prediction method and control technology of high-speed catamaran using the active hydrofoils. To establish the longitudinal motion equations of the ship basing on the 2.5D theory. Using the CFD software to obtain the hydrodynamic data of the hydrofoil. Bring the hydrodynamic expression of hydrofoils into the longitudinal motion equations of the ship. Predicting the longitudinal motion of High-speed catamaran before and after added the hydrofoils. A specific catamaran has been predicted with this approach, the result indicates this approach is workable and this prediction approach provides the theoretical basis for assessing the stabilization ability of appendages and possess the engineering practical value.
Źródło:
Polish Maritime Research; 2018, S 2; 56-61
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fluktuujący świat Mariana Smoluchowskiego
Fluctuating world of Marian Smoluchowski
Autorzy:
Fuliński, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/691096.pdf
Data publikacji:
2017
Wydawca:
Copernicus Center Press
Tematy:
atomic theory
fluctuations
Brownian motion
stochastic process
non-markovian process
Marian Smoluchowski
Opis:
The main goal of this paper is to present the Marian Smoluchowski’s work on thermal and primordial fluctuations which are the main cause of Brownian motion and one of the first empirical evidences for molecular structure of matter.
Źródło:
Zagadnienia Filozoficzne w Nauce; 2017, 62; 127-138
0867-8286
2451-0602
Pojawia się w:
Zagadnienia Filozoficzne w Nauce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Control of a Team of Mobile Robots Based on Non-cooperative Equilibria with Partial Coordination
Autorzy:
Skrzypczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/908483.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
system wielorobotowy
planowanie ruchu
teoria gier
multi-robot systems
motion planning
game theory
Opis:
In this work we present an application of the concept of non-cooperative game equilibria to the design of a collision free movement of a team of mobile robots in a dynamic environment. We propose the solution to the problem of feasible control synthesis, based on a partially centralized sensory system. The control strategy based on the concept of non-cooperative game equilibria is well known in the literature. It is highly efficient through phases where the solution is unique. However, even in simple navigation problems, it happens that multiple equilibria occur, which incurs a problem for control synthesis and may lead to erroneous results. In this paper we present a solution to this problem based on the partial centralization idea. The coordinator module is incorporated into the system and becomes active when multiple equilibria are detected. The coordination method includes a ``fair arbiter'' for the selection of an appropriate equilibrium solution. Simulation studies of the proposed methodology were carried out for 2, 3 and 5 robots, and their results are presented.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2005, 15, 1; 89-97
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Słabe łamanie ergodyczności vs. determinizm
Weak ergodicity breaking vs. determinism of physical processes
Autorzy:
Fuliński, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/690792.pdf
Data publikacji:
2015
Wydawca:
Copernicus Center Press
Tematy:
Boltzmann hypothesis
ergodic theory
deterministic chaos
Brownian motion
anomalous diffusion
single-particle trajectory
Opis:
All physical processes are deterministic de iure. Physicists speak about different types of determinism of physical processes, depending on the degree with which their course can be anticipated. Usually, the course of ergodic processes can be predicted with less certainty than the non-ergodic ones, the latter being integrable. Recent measurements of motions of single particles in composite systems, especially in living biological cells, show that such motions are, in most cases, breaking the Boltzmann’s ergodic hypothesis. On the other hand, their trajectories are random, i.e., one cannot know a priori where the particle will be even in near future. This leads to conclusion that many existing in nature processes are nonergodic but not integrable, therefore predictable only in the mean, representing still other type of determinism.
Źródło:
Zagadnienia Filozoficzne w Nauce; 2015, 59; 83-100
0867-8286
2451-0602
Pojawia się w:
Zagadnienia Filozoficzne w Nauce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gry przeciwko naturze jako narzędzie modelowania niepewności predykcji w zagadnieniu planowania bezkolizyjnego ruchu pojazdu
Games against nature application for modelling prediction uncertainty in the collision free motion planning
Autorzy:
Skrzypczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/322045.pdf
Data publikacji:
2016
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
procesy dyskretne
teoria gier
planowanie ruchu
predykcja
discrete processes
game theory
motion planning
prediction
Opis:
W pracy przedyskutowano przydatność modelu gier przeciwko naturze do modelowania niepewności predykcji stanu otoczenia sterowanego pojazdu. Pokazano możliwość syntezy prawa sterowania realizującego bezkolizyjny ruch pojazdu w dynamicznym środowisku na bazie strategii gry przeciwko naturze. Działanie oraz efektywność proponowanego podejścia zweryfikowano za pomocą symulacji przeprowadzonych w środowisku MATLAB.
This paper addresses the problem of collision free motion planning of a vehicle in a dynamical environment. The usefulness of the game against nature for modeling environmental prediction uncertainty was discussed. The possibility of the control law synthesis on the basis of strategies against nature was presented. The properties and effectiveness of the approach presented were verified by simulations carried out in MATLAB.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2016, 88; 277-288
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ruch cieczy w zbiorniku poziomym
Motion of liquid at tank at horizontal motion
Autorzy:
Trębacki, K.
Królicka, A.
Powiązania:
https://bibliotekanauki.pl/articles/317332.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
zbiornik prostopadłościenny
ładunek płynny
ruch ładunku
ruch poziomy
ruchy cieczy w zbiorniku
ciśnienia na ścianach zbiornika
obliczenia matematyczne działania zbiornika
teoria liniowa
teoria nieliniowa
funkcja potencjału
rectangular tank
liquid cargo
movement of liquid cargo
horizontal motion
ship's motion
ship rolling
movement of liquid in vessel
pressure on walls of tank
linear theory
nonlinear theory
potential function
Opis:
W artykule omówiony został ruch poziomy zbiornika wypełnionego cieczą. Wymieniono przyczyny ruchu cieczy w zbiorniku. Dokonano analizy wg teorii liniowej i nieliniowej. Wyznaczono częstości drgań własnych. Na podstawie teorii liniowej i nieliniowej wyznaczono funkcję potencjału prędkości Φ i powierzchni swobodnej η. Podano rozkłady ciśnień hydrodynamicznych na ściankach zbiornika.
The article discussed a horizontal motion of tank filled with liquid. Discussed a causes of motion of liquid in the tank. Were made analysis by the theory of linear and nonlinear. In article the given of frequency of vibration. On the basis of theory of linear and nonlinear function are determined velocity potential and free surface. Given of distributions of hydrodynamic pressure on the walls of tank.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2016, 17, 10; 97-102
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

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