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Tytuł:
Commentary on history of Adam Kochański’s circle rectification popularization
Uwagi na temat historii popularyzacji rektyfikacji okręgu Adama Kochańskiego (1631-1700)
Autorzy:
Żaba, A.
Powiązania:
https://bibliotekanauki.pl/articles/119042.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Geometrii i Grafiki Inżynierskiej
Tematy:
squaring the circle
circle rectification
Kochański Adam
kwadratura koła
rektyfikacja okręgu
Opis:
The subject of study in this article is history of popularization of graphic notation of rectification of semicircle by Adam Kochański and changes introduced in this notation in following scientific publications. The author’s aim is to show in which moment the original notation was replaced with the one that was commonly used in publications in XX c.
Przedmiotem opracowania w artykule są dzieje popularyzacji rektyfikacji Adama Kochańskiego oraz zmian wprowadzanych w jej zapisie graficznym w kolejnych publikacjach naukowych. Celem, jaki stawia sobie autorka jest próba ustalenia, w którym momencie nastąpiło przekształcenie zapisu oryginalnego na stosowany w publikacjach z XX wieku.
Źródło:
Journal Biuletyn of Polish Society for Geometry and Engineering Graphics; 2012, 23; 89-94
1644-9363
Pojawia się w:
Journal Biuletyn of Polish Society for Geometry and Engineering Graphics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computation of the azimuth of the Great Circle in Cartesian coordinates
Autorzy:
Felski, A.
Powiązania:
https://bibliotekanauki.pl/articles/320573.pdf
Data publikacji:
2011
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
azimuth
Great Circle
Cartesian coordinates
Opis:
The commonly known method of calculations connected with the Great Circle sailing and with similar tasks is executed by navigators with geographical coordinates. This paper deals with the possibility of azimuth calculations of the direction between two points on the Earth surface with 3-D Cartesian coordinate system.
Źródło:
Annual of Navigation; 2011, 18; 45-53
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency of a voluntary speed reduction algorithm for a ship’s great circle sailing
Autorzy:
Wang, H.
Mao, W.
Eriksson, L.
Powiązania:
https://bibliotekanauki.pl/articles/117253.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
great circle sailing
algorithm, ship’s sailing route
route planning
Dynamic Programming (DP)
great circle route
great circle (orthodrome)
Estimated Time of Arrival (ETA)
Opis:
The great-circle is the shortest distance between two points on the surface of the earth. When planning a ship’s sailing route (waypoints and forward speeds) for a specific voyage, the great circle route is commonly considered as a reference route, especially for ocean-crossing seaborne transport. During the planning process, the upcoming sea weather condition is one of the most important factors affecting the ship’s route optimization/planning results. To avoid encountering harsh conditions, conventional routing optimization algorithms, such as Isochrone method and Dynamic Programming method, have been developed/implemented to schedule a ship’s optimal routes by selecting waypoints around the great circle reference route based on the ship’s operational performances at sea. Due to large uncertainties in sea weather forecast that used as inputs of these optimization algorithms, the optimized routes may have worse performances than the traditional great circle sailing. In addition, some shipping companies are still sailing in or making charting contracts based on the great circle routes. Therefore, in this study, a new optimization algorithm is proposed to consider the voluntary speed reduction with optimal speed configuration along the great circle course. The efficiency of this method is investigated by comparing these two methods for optimal route planning with respect to ETA and minimum fuel consumption. A container ship sailing in the North Atlantic with full-scale performance measurements are employed as the case study vessels for the comparison.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 301-308
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 Fourth Meditation and Cartesian Circles
Czwarta medytacja a kartezjańskie koła
Autorzy:
Ragland, C. P.
Fulmer, Everett
Powiązania:
https://bibliotekanauki.pl/articles/1791074.pdf
Data publikacji:
2020-06-30
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
Czwarta Medytacja
zewnętrzne błędne koło
wewnętrzne błędne koło
Fourth Mediation
external circle
internal circle
Opis:
Proponujemy nowe spojrzenie na rolę argumentacyjną, jaką odgrywa czwarta Medytacja w ramach Medytacji o pierwszej filozofii. Przedłożona przez nas interpretacja pozwala po pierwsze, wyjaśnić wiele zaskakujących i inaczej niezrozumiałych twierdzeń sformułowanych przez Kartezjusza w czwartej Medytacji, a po drugie uchyla zarzut, że to czwarta Medytacja prowadzi do powstania w systemie Kartezjusza problemu błędnego koła — lub przynajmniej tylko pogarsza ten problem.
We offer a novel interpretation of the argumentative role that Meditation IV plays within the whole of the Meditations. This new interpretation clarifies several otherwise head-scratching claims that Descartes makes about Meditation IV, and it fully exonerates the Fourth Meditation from either raising or exacerbating Descartes’ circularity problems.
Źródło:
Roczniki Filozoficzne; 2020, 68, 2; 119-138
0035-7685
Pojawia się w:
Roczniki Filozoficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Periodic, nonperiodic, and chaotic solutions for a class of difference equations with negative feedback
Autorzy:
Kennedy, Benjamin B.
Powiązania:
https://bibliotekanauki.pl/articles/29519375.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
difference equation
negative feedback
circle map
Opis:
We study the scalar difference equation $ x(k+1)=x(k)+\frac{f(x(k-N))}{N} $ where f is nonincreasing with negative feedback. This equation is a discretization of the well-studied differential delay equation $ x′(t) = f(x(t − 1)). $ We examine explicit families of such equations for which we can find, for infinitely many values of N and appropriate parameter values, various dynamical behaviors including periodic solutions with large numbers of sign changes per minimal period, solutions that do not converge to periodic solutions, and chaos. We contrast these behaviors with the dynamics of the limiting differential equation. Our primary tool is the analysis of return maps for the difference equations that are conjugate to continuous self-maps of the circle.
Źródło:
Opuscula Mathematica; 2023, 43, 4; 507-546
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New method to solve certain differential equations
Autorzy:
Rajchel, Kazimierz
Szczęsny, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/744683.pdf
Data publikacji:
2016-12-01
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
differential equation
Schroedinger equation
unit circle
Opis:
A new method to solve stationary one-dimensional Schroedinger equation is investigated. Solutions are described by means of representation of circles with multiple winding number. The results are demonstrated using the well-known analytical solutions of the Schroedinger equation.
Źródło:
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica; 2016, 15
2300-133X
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The problem of covering the fields by the circles in the task of optimization of observation points for ground video monitoring systems of forest fires
Autorzy:
Komyak, V.
Pankratov, A.
Patsuk, V.
Prikhodko, A.
Powiązania:
https://bibliotekanauki.pl/articles/410851.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
circle
coverage criteria
optimization
nonlinear programming
Opis:
The problem of covering the area by circles, mathematical model of the coating offers a new coverage criteria based on which analytically describes the range of permissible solutions of the problem. Based on the analysis of the properties of the model, it is shown that the solution of the problem can be reduced to the solution of problems of nonlinear programming sequence. At the moment, there are systems of video monitoring forest land. An important class of geometric design problems is problems of irregular covering the field by geometric objects, as well as regular. In the problems of covering it is set up a claim that all points of the field were covered by geometric objects, while the conditions of non-intersection of objects between themselves and their placement in the field may be violated. One problem with the design of terrestrial video monitoring systems is to optimize the placement of observation points. optimal placement of towers problem can be formulated as a coating task. An approach to the placement of towers terrestrial video monitoring of forest fires, the main stage of which is set forth search method local extremum in the problem coverage area circles of varying radius. There is build a mathematical model to optimize the placement of variable radius circle and on its basis – the development of methods of solution and proposed an approach to obtaining a local extremum of covering problem.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 2; 133-138
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Splitting Cubic Circle Graphs
Autorzy:
Traldi, Lorenzo
Powiązania:
https://bibliotekanauki.pl/articles/31340797.pdf
Data publikacji:
2016-08-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
circle graph
split decomposition
regular graph
Opis:
We show that every 3-regular circle graph has at least two pairs of twin vertices; consequently no such graph is prime with respect to the split decomposition. We also deduce that up to isomorphism, K4 and K3,3 are the only 3-connected, 3-regular circle graphs.
Źródło:
Discussiones Mathematicae Graph Theory; 2016, 36, 3; 723-741
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Limits of stabilization of a networked hyperbolic system with a circle
Autorzy:
Gugat, Martin
Huang, Xu
Wang, Zhiqiang
Powiązania:
https://bibliotekanauki.pl/articles/31342765.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
hyperbolic system
exponential stability
circle
network
Opis:
This paper is devoted to the discussion of the exponential stability of a networked hyperbolic system with a circle. Our analysis extends an example by Bastin and Coron about the limits of boundary stabilizability of hyperbolic systems to the case of a networked system that is defined on a graph which contains a cycle. By spectral analysis, we prove that the system is stabilizable while the length of the arcs is sufficiently small. However, if the length of the arcs is too large, the system is not stabilizable. Our results are robust with respect to small perturbations of the arc lengths. Complementing our analysis, we provide numerical simulations that illustrate our findings.
Źródło:
Control and Cybernetics; 2023, 52, 1; 79-121
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Review of the Psychoanalytic Approaches to the Holocaust, on the Example of the Ninth Circle Interpretation
Pregled psihoanalitičkih pristupa holokaustu uz primjer tumačenja Devetog kruga
Autorzy:
Matijašević, Željka
Powiązania:
https://bibliotekanauki.pl/articles/635685.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
psychoanalysis
Holocaust
authoritarianism
logotherapy
Ninth Circle
Opis:
The essay is an overview of the most notable psychoanalytic approaches to the trauma of the Holocaust, in the works of the Frankfurt school authors, and in the works of Shoshana Felman and Dori Laub. The last part of the article represents an attempt to interpret the film Ninth Circle by France Štiglic, and in this respect the article reviews and applies the concepts of Viktor Frankl’s school of logotherapy, while it also relies on Frankl’s autobiographical account of the Holocaust trauma.
Źródło:
Poznańskie Studia Slawistyczne; 2017, 12; 211-224
2084-3011
Pojawia się w:
Poznańskie Studia Slawistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lipschitz differences and Lipschitz functions
Autorzy:
Balcerzak, Marek
Buczolich, Zoltán
Laczkovich, Miklós
Powiązania:
https://bibliotekanauki.pl/articles/966671.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Lipschitz function
circle group
difference function
Źródło:
Colloquium Mathematicum; 1997, 72, 2; 319-324
0010-1354
Pojawia się w:
Colloquium Mathematicum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On Graphs Representable by Pattern-Avoiding Words
Autorzy:
Mandelshtam, Yelena
Powiązania:
https://bibliotekanauki.pl/articles/31343448.pdf
Data publikacji:
2019-05-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
pattern-avoidance
word-representability
circle graphs
Opis:
In this paper we study graphs defined by pattern-avoiding words. Word-representable graphs have been studied extensively following their introduction in 2004 and are the subject of a book published by Kitaev and Lozin in 2015. Recently there has been interest in studying graphs represented by pattern-avoiding words. In particular, in 2016, Gao, Kitaev, and Zhang investigated 132-representable graphs, that is, word-representable graphs that can be represented by a word which avoids the pattern 132. They proved that all 132-representable graphs are circle graphs and provided examples and properties of 132-representable graphs. They posed several questions, some of which we answer in this paper. One of our main results is that not all circle graphs are 132-representable, thus proving that 132-representable graphs are a proper subset of circle graphs, a question that was left open in the paper by Gao et al. We show that 123-representable graphs are also a proper subset of circle graphs, and are different from 132-representable graphs. We also study graphs represented by pattern-avoiding 2-uniform words, that is, words in which every letter appears exactly twice.
Źródło:
Discussiones Mathematicae Graph Theory; 2019, 39, 2; 375-389
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Conception of Logic in the Cracow Circle: Salamucha, Drewnowski, Bocheński
Autorzy:
Murawski, Roman
Powiązania:
https://bibliotekanauki.pl/articles/1926893.pdf
Data publikacji:
2021-07-31
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
formal logic
philosophy
theology
Thomism
Cracow Circle
Opis:
The aim of this paper is to present and analyse the views on logic of the members of the so-called Cracow Circle, namely the Dominican Father Józef (Innocenty) M. Bocheński, Rev. Jan Salamucha, and Jan Franciszek Drewnowski. They tried to apply the methods of modern formal/mathematical logic to philosophical and theological problems. In particular, they attempted to modernise contemporary Thomism (the trend which was then prevailing) by employing logical tools. The influence of Jan Łukasiewicz, the co-founder of the Warsaw School of Logic will be also discussed.
Źródło:
Studia Philosophiae Christianae; 2021, 57, 1; 109-125
0585-5470
Pojawia się w:
Studia Philosophiae Christianae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Philosophy and Logical Positivism
Autorzy:
Marsonet, Michele
Powiązania:
https://bibliotekanauki.pl/articles/1037952.pdf
Data publikacji:
2019
Wydawca:
Academicus. International Scientific Journal publishing house
Tematy:
logical positivism
metaphysics
vienna circle
analytic philosophy
Opis:
Logical positivists claim that the whole of human knowledge can be reduced to analytic and synthetic sentences, and this means that the only possible knowledge is provided by science. Metaphysics is thus meaningless, because its sentences do not comply with the rules set forth by logical analysis of language. What, then, is the philosopher’s job? The members of the Vienna Circle answer that his task is to clarify the concepts used within empirical and formal sciences, while analytic philosophers stress instead the importance of ordinary language’s analysis. But the outcome is in both cases clear: philosophy is linguistic analysis. Howeber, by reducing the whole of reality to empirical reality, logical positivists do metaphysics. We do not have the “elimination” of metaphysics, but just the proposal of an empiricist brand of metaphysics.
Źródło:
Academicus International Scientific Journal; 2019, 19; 32-36
2079-3715
2309-1088
Pojawia się w:
Academicus International Scientific Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On computational algorithms implemented in marine navigational software used in marine navigation electronic devices and systems
Autorzy:
Weintrit, A.
Kopacz, P.
Powiązania:
https://bibliotekanauki.pl/articles/320655.pdf
Data publikacji:
2012
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
ECDIS
great circle
rhumb-line
sailing calculations
Opis:
In the paper the authors attempt to present the computational problem related to the navigational algorithm (meridian arc formula) implemented in the software applied in marine navigation electronic devices and systems, such as GNSS (GPS, GLONASS, Galileo), AIS, ECDIS/ECS, and other marine GIS. From the early days of the development of the basic navigational software built into satellite navigational receivers, it has been noted that for the sake of simplicity and a number of other reasons, this navigational software is often based on the simple methods of limited accuracy. It is surprising that even nowadays the use of navigational software is still used in a loose manner, sometimes ignoring basic computational principles and adopting oversimplified assumptions and errors such as the wrong combination of spherical and ellipsoidal calculations in different steps of the solution of a particular sailing problem. The lack of official standardization on both the ‘accuracy required’ and the equivalent ‘methods employed’, in conjunction to the ‘black box solutions’ provided by GNSS navigational receivers and navigational systems (ECDIS and ECS) suggest the necessity of a thorough examination of the issue of sailing calculations for navigational systems and GNSS receivers.
Źródło:
Annual of Navigation; 2012, No. 19, part 2; 171-184
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 70

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