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Wyświetlanie 1-15 z 261
Tytuł:
Autobiografia Alice Salomon- struktury procesowe biografii a losy narodu niemieckiego
THE AUTOBIOGRAPHY OF ALICE SALOMON - PROCESS STRUCTURES OF BIOGRAPHY AND THE FATE OF GERMAN NATION
Autorzy:
Kolodziej-Durnas, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/1373891.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
AUTOBIOGRAPHY
BIOGRAPHICAL METHOD
COLLECTIVE TRAJECTORY
FRITZ SCHUETZE
INDIVIDUAL TRAJECTORY
TRAJECTORY
WOMEN'S LIBERATION MOVEMENT
Opis:
In the article the issue of process structures in the autobiography of Alice Salomon and a relation between biographical and collective trajectory. Besides the introductory information on the pioneer of social work in Germany herself and her international career in organizations of women's movement in the article the analysis of process structures in her autobiography is presented together with theoretical inspirations, methodological remarks and data on the text. In contrast to the analysis of autobiographical utterances of Rudolph Hoess enclosed in three articles by M.Czyzewski and A.Rokuszewska-Pawelek, which to some extent constituted the pattern of construction of the plot, the analysis of Alice Salomon autobiography allows to notice the situation when the collective trajectory does not absorb individuals but makes them build their own identity by means of biographical projects despite experiencing suffering associated with the collective trajectory. By the comparison of R.Hoess and A.Salomon autobiographies an attempt was made to emphasize the complexity of the German nation's fate of the Nazi period.
Źródło:
Przegląd Socjologii Jakościowej; 2010, 6, 2; 60-80
1733-8069
Pojawia się w:
Przegląd Socjologii Jakościowej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trajectory reproduction and trajectory tracking problem for the nonholonomic systems
Autorzy:
Ratajczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/200125.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nieholonomiczny układ
śledzenie trajektorii
trajectory reproduction
trajectory tracking
nonholonomic system
Opis:
This paper introduces a new algorithm of trajectory reproduction and trajectory tracking for nonholonomic systems. The endogenous configuration space approach is employed as a guideline in the algorithm derivation. The derivation uses a trajectory reproduction error, which is an integral of the difference between the resultant trajectory and the desired trajectory over the motion horizon. Such a definition of the error allows to solve both the trajectory reproduction as well as the trajectory tracking problem. Considerable attention in the paper has been paid to the implementation aspects of the algorithm. The nonparametric approach is used together with a higher order of the integration method. The algorithm efficiency is illustrated with computer simulations accomplished for two nonholonomic systems: the dynamics of the double pendulum with a passive joint, and the kinematics of the unicycle.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 1; 63-70
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer analysis of electromotoric swivel walker movement
Autorzy:
Varga, J.
Hajduk, M.
Świć, A.
Powiązania:
https://bibliotekanauki.pl/articles/117705.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
swivel walker
stability
trajectory
Opis:
The first mechanical construction of swivel walker is from year 1963 and it was aimed for support movement of people with disabilities. This solution was very difficult and it was main reason for purpose of electromotoric module, which facilitates movement and reduce effort of people with disabilities. Therefore further research in this area are still provided. In this paper trajectory of swivel walker with electromotoric modules is described. To analyze the tilt and trajectory structure of the walker SolidWorks software was implemented.
Źródło:
Applied Computer Science; 2016, 12, 4; 88-95
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of inaccuracy of determining a directional borehole axis
Autorzy:
Topolski, T.
Gonet, A.
Stryczek, S.
Powiązania:
https://bibliotekanauki.pl/articles/299106.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
directional drilling
trajectory borehole
Opis:
The development of directional drilling made designers work out numerous measurement devices for spatial location of the borehole axis. The borehole trajectory can be determined on the basis of very accurate calculation methods. The authors present a brief characteristic of devices for measuring dogleg angle and azimuths as well as methods for calculating the spatial placement of borehole axis, i.e.: – average angle method, – tangential method, modified to balanced tangential method, – radius of curvature method (RCM), – minimum curvature method. Calculations and graphical representations of deviations obtain ed with these four methods were performed for three selected trajectories of borehole axes (2D), increase/decrease of dogleg angle and 3D, increase/decrease of dogleg angle and azimuth with the use of COMPASS software (part of Halliburton Landmark package).
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 3; 589-603
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research of trajectory design error of coil piling of geodesic winding
Issledovanie pogreshnosti modelirovanija traektorii ukladki vitka geodezicheskojj namotki
Autorzy:
Mogilnuy, G.
Donchenko, V.
Powiązania:
https://bibliotekanauki.pl/articles/793291.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
geodetic trajectory
ANSYS programme
setting trajectory
finite element
CAD system
reinforcement material
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modified trajectory tracking guidance for artillery rocket
Autorzy:
Ożóg, Rafał Józef
Jacewicz, Mariusz Adam
Głębocki, Robert
Powiązania:
https://bibliotekanauki.pl/articles/2055031.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
trajectory tracking
guidance
lateral thruster
Opis:
This paper contributes to a modified guidance scheme based on a trajectory tracking method which is dedicated for an artillery rocket with a finite set of single use solid propellant side thrusters. Frequency modulation of pulses was used to achieve effective firing logic. The proposed control law is applicable in the last phase of flight when the rocket reaches the vertex of the trajectory. A correction engine activation sequence was chosen in such a way that possibility of rocket axial unbalance is minimized due to motors firing. Numerical simulation results indicate that significant dispersion reduction was achieved and the number of activated side rocket thrusters is minimized.
Źródło:
Journal of Theoretical and Applied Mechanics; 2020, 58, 3; 611--622
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Labour Market Mobility of Polish Migrants: A Comparative Study of Three Regions in South Wales, UK
Autorzy:
Knight, Julie
Lever, John
Thompson, Andrew
Powiązania:
https://bibliotekanauki.pl/articles/498777.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Polish migration
labour markets
trajectory
Opis:
Since Polish migrants began entering the UK labour market in the post-accession period, there has been a significant amount of case study research focusing on the impact of this large migrant group on the UK economy. However, ten years after enlargement, there is still insufficient information regarding the labour market mobility of Polish migrants residing in the UK for the longer term. The available research on this topic is largely concentrated in urban settings such as London or Birmingham, and does not necessarily capture the same patterns of labour market mobility as in non-urban settings. Using qualitative data collected in three case study locations – urban, semi-urban and rural – in the South Wales region from 2008–2012, this article has two main aims. First, given the proximity of the case study locations, the article highlights the diversity of the Polish migrant characteristics through the samples used. Second, using trajectories created from the data, this article compares the variations among the labour market movements of the Polish migrants in each sample to determine what characteristics influence labour market ascent. Through this comparative trajectory analysis, the findings from this article point to the relative English language competency of migrants as the primary catalyst for progression in the Welsh labour market across all three case study regions. The secondary catalyst, which is intertwined with the first, is the composition of the migrants’ social networks, which enable, or in some cases disable, labour market progression. These findings have significant implications in the national and in the supranational policy sphere regarding the employment of migrants as well as their potential for cultural integration in the future.
Źródło:
Central and Eastern European Migration Review; 2014, 3, 2; 61-78
2300-1682
Pojawia się w:
Central and Eastern European Migration Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Methods of Determining the Safe Ship Trajectory
Autorzy:
Lisowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/116647.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship route
Safe Ship Trajectory
route planning
Determining the Safe Ship Trajectory
ship trajectory
Artificial Neural Network (ANN)
game theory
computer simulation
Opis:
The paper describes six methods of optimal and game theory and artificial neural network for synthesis of safe control in collision situations at sea. The application of optimal and game control algorithms to determine the own ship safe trajectory during the passing of other encountered ships in good and restricted visibility at sea is presented. The comparison of the safe ship control in collision situation: multi-step matrix non-cooperative and cooperative games, multi-stage positional non-cooperative and cooperative games have been introduced. The considerations have been illustrated with examples of computer simulation of the algorithms to determine safe of own ship trajectories in a navigational situation during passing of eight met ships.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 223-228
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Navigational decision support system during approach manoeuvre in emergency STS transfer operation
Autorzy:
Witkowska, A.
Śmierzchalski, R.
Wilczyński, P.
Powiązania:
https://bibliotekanauki.pl/articles/2068876.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
lightering
trajectory planning
approach manoeuver
Opis:
The paper is concerned with the problem of safe trajectory planning for approaching during emergency STS (Ship to Ship) transfer operation with oil spill. The safe trajectory means that the way points does not cross in the area of the environment with the static and dynamic obstacles and at the same time satisfies ship's stopping and speed deceleration performance. The evolutionary path planning algorithm is used to determine trajectory designed as way points and straight line segments between them. The way points - ship positions and velocity can be treated as reference value to support navigator in decision making during Approach Manoeuvre and to mitigate the risk of collision which mostly results from exceed velocity of approaching. The task of trajectory planning is defined as constant optimization process to minimize trajectory length, course alteration and maximize safety in a navigational environment. This paper examines exemplary navigational scenario based on emergency STS accident.
Źródło:
Journal of Polish Safety and Reliability Association; 2017, 8, 1; 175--182
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Verification of a deterministic ships safe trajectory planning algorithm from different ships’ perspectives and with changing strategies of target ships
Autorzy:
Lazarowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/2063957.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safe ship's trajectory
ship's trajectory
collision avoidance module
autonomous navigation system
maritime autonomous surface ships
Opis:
The paper presents results of a ship's safe trajectory planning method verification - the Trajectory Base Algorithm, which is a deterministic approach for real-time path-planning with collision avoidance. The paper presents results of the algorithm’s verification from different ships’ perspectives and with changing strategies of target ships. Results prove the applicability of the algorithm in the Collision Avoidance Module of the Autonomous Navigation System for Maritime Autonomous Surface Ships.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 623--628
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Struggle with Time in Chronic Illness
Autorzy:
Ostrowska, Antonina
Powiązania:
https://bibliotekanauki.pl/articles/1929489.pdf
Data publikacji:
2008-04-03
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
time
chronic disease
trajectory
dialysis
transplantation
Opis:
It is worth looking at chronic illness with its pain, suffering and increasing limitations from the perspective of time. By time we mean subjective time relating to the perception and dynamics of the malady in the patient’s impressions and the role which time plays in the structuring of the patient’s life and experience. The main focus of this article is the experience of progressive kidney failure (uraemia), a condition which requires regular dialysis or kidney transplantation. Due to its specific crises, hopes and periods of waiting, painstaking medical procedures lasting many hours and turning points in the disease’s trajectory, time and its passage are a particularly adequate instrument with which to analyse the experiences of patients with uraemia. These experiences are discussed against the backdrop of selected elements of health care and attitudes towards transplantation which provide the social context for patients’ struggle with illness.
Źródło:
Polish Sociological Review; 2008, 161, 1; 25-38
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of laser sheet technique for analysis of 3D particle velocity fields
Autorzy:
Mirek, P.
Powiązania:
https://bibliotekanauki.pl/articles/280557.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
PIV
specklegram
velocity fields
particle trajectory
Opis:
The author has applied the laser sheet technique to acquire velocity fields and mass flows at the outlet of nozzle system, used for introducing limestone particles into a power boiler for a desulfurization process. This brings an effect in the form of multiexposure pictures, called specklegrams, which record single particle trajectories or their agglomerates in selected areas of the flow. On the basis of this the parameters of velocity field can be estimated. The author proposes a new approach to quantitative analysis of the specklegrams. It enables one to combine correlation processing with scanline particle tracking.
Zastosowanie techniki noża świetlnego w analizie trójwymiarowych pól prędkości ziaren. Autor zastosował technikę noża świetlnego do rejestracji pól prędkości i przepływów masowych przy wylocie dyszy służącej do wprowadzania sorbentu wapniowego do kotła energetycznego w procesie odsiarczania spalin. Efektem są wieloekspozycyjne obrazy zwane speklogramami, rejestrujące pojedyńcze tory cząstek lub ich aglomeratów w wybranych strefach przepływu. Na tej podstawie oszacować można parametry pola prędkości. Analiza jakościowa speklogramów może zostać przeprowadzona za pomocą zaproponowanego przez autra algorytmu, będącego połączeniem tradycyjnychmetod korelacyjnych oraz techniki obrotowej linii skanującej.
Źródło:
Journal of Theoretical and Applied Mechanics; 2001, 39, 1; 33-49
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planning the flight trajectory of a passenger aircraft with regards to the aspect of pollutants emission
Autorzy:
Pawlak, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/243971.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
aircraft
emission
cruise phase
flight trajectory
Opis:
One of the ways to reduce the adverse impact of aircraft on the environment is through the determination of the trajectory of the flight on a given route that leads to reducing fuel consumption and, consequently, emission of pollutants in jet engines exhausts. Planning a flight in terms of minimizing emissions or fuel consumption is a complex task and difficult to implement due to the conditions in which the aircraft travels, but it is possible though. It is necessary to take into account the limitations resulting from the organization of the airspace and the rules therein, as well as the current weather conditions. The weather is one of the main factors determining the amount of fuel consumed, the time and cost of a particular flight on a given route. In addition to the main parameters, such as pressure and air density, it is extremely important to determine the air temperature, as well as the wind speed and direction. The temperature affects the speed of sound, based on which it is possible to determine the Mach number for a plane flying with a given true air speed (TAS). The speed and direction of wind, on the other hand, affect the speed of the aircraft relative to the ground (velocity over ground, VOG), and thus the duration of its flight. The article describes how the developed model of emission of pollutants in the exhausts of jet bypass engines can be useful for determining the trajectory of an aircraft in its cruise phase due to the criterion of pollutants emissions minimization. An exemplary analysis was carried out for selected aircraft moving along the route adopted for the research. The analysis covered various cruising altitudes and various meteorological conditions (wind speed and direction). The obtained results are illustrated graphically and discussed.
Źródło:
Journal of KONES; 2019, 26, 3; 145-153
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flight path optimization of an aircraft aided during take-off by maglev system
Autorzy:
Majka, A.
Powiązania:
https://bibliotekanauki.pl/articles/245029.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
air transport
magnetic levitation
trajectory optimization
Opis:
Very high air traffic density in the largest airports and in their vicinity involves that the air traffic in the largest airports and their areas of operations approaches the capacity limits. Such high density of the air traffic adversely influences the natural environment in the vicinity of the airports due to the increasing cumulative noise level and the concentration of environmentally hazardous substances. One of the possibilities to improve the situation is to work out innovative solutions aimed at decreasing the aircraft pollution and improving the transport effectiveness. One of the major concepts is using magnetic levitation (MAGLEV) technology to support aircraft take-off and landing. If the aircraft could take-off and start the initial climb phase with the ground power, the installed power may be reduced, resulting in less weight, less drag and less overall fuel consumption which leads to emission reduction. These advantages, the lower fuel consumption and emissions, increase sustainability of the transportation system. Different conditions of the take-off give possibilities to shape the trajectory after the take-off in order to decrease the negative influence on the environment. The aim of the present work was to determine the optimal conditions of the take-off and the optimal climb trajectory of the aircraft aided in the ground phase of the take-off by the system using the MAGLEV technology, minimizing the fuel consumption. The simplified algorithm of optimization of the flight trajectory was used in this work; it uses the method of approximation of the flight path by the third degree polynomial.
Źródło:
Journal of KONES; 2013, 20, 2; 261-268
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Trajectory of Suffering-Parents of Children with Intellectual Disability on the Future
Autorzy:
Niedbalski, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/1790401.pdf
Data publikacji:
2020-03-29
Wydawca:
Polskie Towarzystwo Socjologiczne
Tematy:
parents
children
Disability
trajectory
qualitative research
Opis:
The aim of the research was to characterize the situation of intellectually disabled individuals and their families, with special stress on parents’ doubts and dilemmas which grow as their disabled children mature and enter adulthood. The subject of the study was to analyze the processual character of transformations related to bringing up children with intellectual disabilities that take place in generational families, in particular, those which are related to transformations on the level of parents’ perceptions, role, and identity. These notions were reconstructed on the basis of the personal experiences of parents of disabled children. The theoretical basis of the research was the concept of a trajectory of suffering, and the applied methodology was the grounded theory methodology.
Źródło:
Polish Sociological Review; 2020, 209, 1; 95-116
1231-1413
2657-4276
Pojawia się w:
Polish Sociological Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 261

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