Wyniki wyszukiwania - BazTech

1

Regularity and normality in hereditary bi m-spaces

Al-Omari Ahmad, Al Ghour Samer, Noiri Takashi

Demonstratio Mathematica

|

2022

|

Vol. 55, nr 1

226--237

EN

Quite recently, a new minimal structure m⋆H and an mn - Hg -closed set have been introduced in a previous study [T. Noiri and V. Popa, Closed sets in hereditary bi m-spaces, Questions Answers General Topol. 38 (2020), 133–142] by using two minimal structures m, n and a hereditary class H . In this paper, we introduce and investigate the notions of (m,n) - H⋆g -regularity and (m,n) - H⋆g -normality in a hereditary bi m-space (X,m,n,H) .

2

Analiza punktualności i regularności kursowania autobusów komunikacji miejskiej na wybranych trasach Szczecina i Polic

Regulski Paweł, Abramek Karol Franciszek

Autobusy : technika, eksploatacja, systemy transportowe

|

2019

|

R. 20, nr 1-2

26--34

PL

W artykule przedstawiono analizę punktualności i regularności kursowania autobusów komunikacji miejskiej na wybranych trasach Szczecina i Polic. Badania zostały przeprowadzone w maju 2018 roku w dni robocze w godzinach popołudniowego szczytu przewozowego na podstawie danych z Centralnego Systemu Zarządzania Komunikacją Miejską. Obejmowały one dwie linie autobusowe. W ramach badań wskazano m.in. miejsca zwiększonego natężenia ruchu drogowego.

EN

The article presents an analysis of punctuality and regularity of public transport buses on selected routes of Szczecin and Police. Research were carried out in May 2018 on working days in the afternoon transport peak and in November 2018 on working days before the afternoon peak, during the afternoon transport peak and after the afternoon peak based on data from the Central Public Transport Management System They included two bus lines. Research indicated, among others, places of increased road traffic.

3

Analysis and assessment of the regularity of mass urban passenger transport in the conditions of the city of ruse

Pencheva V., Tsekov A., Georgiev I., Kostadinov S.

Transport Problems

|

2018

|

T. 13, z. 3

109--118

EN

One of the quality indicators of the transport service in passenger transport is the regularity of the movement of vehicles. Apart from the planned traffic intervals, it depends on a number of factors related to the traffic conditions of the public transport in the locality (intensity and composition of the traffic flow, passenger traffic structure, traffic lights regime, atmospheric conditions, etc.). The paper assesses the regularity of mass urban passenger transport traffic in the conditions of the city of Ruse, Bulgaria, by probing the estimation of the arrival intervals of the means of transport at the stops along a given route.

4

Porosity and the bounded linear regularity property

Reich S., Zaslavski A. J.

Journal of Applied Analysis

|

2014

|

Vol. 20, nr 1

1--6

EN

H. H. Bauschke and J. M. Borwein showed that in the space of all tuples of bounded, closed, and convex subsets of a Hilbert space with a nonempty intersection, a typical tuple has the bounded linear regularity property. This property is important because it leads to the convergence of infinite products of the corresponding nearest point projections to a point in the intersection. In the present paper we show that the subset of all tuples possessing the bounded linear regularity property has a porous complement. Moreover, our result is established in all normed spaces and for tuples of closed and convex sets, which are not necessarily bounded.

5

On the coset category of a skew lattice

Pita-Costa J.

Demonstratio Mathematica

|

2014

|

Vol. 47, nr 3

539--554

EN

Skew lattices are noncommutative generalizations of lattices. The coset structure decomposition is an original approach to the study of these algebras describing the relation between its rectangular classes. In this paper, we will look at the category determined by these rectangular algebras and the morphisms between them, showing that not all skew lattices can determine such a category. Furthermore, we will present a class of examples of skew lattices in rings that are not strictly categorical, and present sufficient conditions for skew lattices of matrices in rings to constitute ^-distributive skew lattices.

6

Behavior Consistency Analysis Based on the Behavior Profile about Transition Multi-Set of Petri Net

Fang X., Wang M., Yin Z.

Przegląd Elektrotechniczny

|

2013

|

R. 89, nr 1b

171--173

EN

Duplicate activities often appear in the business process modeling, analyzing the consistency of corresponding model containing duplicate activities is a problem , the existing behavior consistency methods can not analyze effectively the process model with the multi-set of transition. In the paper, by analyzing of three kinds of weak order relations of multi set of transition, a kind of consistency measure methods based on behavior profile of multi-sets of transitions of Petri net is proposed. Finally , an example is given out, which shows the method is effective.

PL

W artykule przedstawiono metodę określenia regularności związków słabych w systemie wielowątkowym o powielających się danych. Analiza, trzech wybranych rodzajów relacji oparta została na profilu wielowątkowej sieci Petriego. Opisano także przykład, potwierdzający skuteczność działania.

7

Erratum to : On the coset structure of a skew lattice

Pita Costa J.

Demonstratio Mathematica

|

2013

|

Vol. 46, nr 2

245--246

8

On how to use expert judgements in regularity analyses to obtain good predictions.

Hjorteland A., Aven T.

Zagadnienia Eksploatacji Maszyn

|

2007

|

Vol. 42, nr 3

157-169

EN

The purpose of regularity analysis is to assess future deliveries of production and transportation systems, such as oil and gas installations. When conducting such analysis, models are developed reflecting the performance of various equipment, for example compressors and pumps. To assess the equipment performance there is a need for relevant konwledge, including observed data and expert judgements. One of the challenges in regularity analyses is to assess uncertainties for the large number of quantities in the models being used. These quantities are either, observable quantities such as lifetimes or repair times, or statistical expected values or probabilities, such as MTTF or MTTR. The purpose of this paper is to present and discuss a practical approach for such assessments using the combination of expert judgements and hard data. The approach is based on a Bayesian framework, with focus on prediction and uncertainty assessments of observable quantities.

PL

Celem analiz regularności jest oszacowanie wielkości przyszłych dostaw surowców za pomocą systemów produkcyjnych i transportowych, takich jak instalacje naftowe i gazowe. Przeprowadzając taką analizę buduje się modele opisujące działanie różnorodnego wyposażenia, np. sprężarek lub pomp. Aby ocenić pewność działania wyposażenia technicznego niezbędna jest odpowiednia wiedza, obejmująca zaobserwowane wielkości i opinie ekspertów. Jednym z wyzwań w analizach regularności jest oszacowanie niepewności w warunkach dużej liczby elementów składowych w zastosowanych modelach. Te elementy składowe mogą być wielkościami obserwowalnymi, takimi jak czas do uszkodzenia lub czas naprawy, mogą być też wielkościami statystycznymi, wyrażonymi jako wartości oczekiwane, bądź prawdopodobieństwa, na przykład MTTF (średni czas do uszkodzenia) lub MTTR (średni czas naprawy). Celem niniejszego artykułu jest przedstawienie i przedyskutowanie praktycznych sposobów dokonywania takich analiz w oparciu o kombinację opinii eksperckich i twardych danych. Proponowane podejście oparte jest na modelu Bayesowskim, przy czym skupiono się na predykcji i ocenie niepewności dla wielkości obserwowalnych.

9

Continuity properties of the stree tensor in the 3-dimensional Ramberg/Osgood model

Bildhauer. M., Fuchs M.

Journal of Applied Analysis

|

2007

|

Vol. 13, nr 2

209-233

EN

We discuss the weak form of the Ramberg/Osgood equations (also known as the Norton/Hoff model) for nonlinear elastic materials on a 3-dimensional domain and show that the stress tensor is Hoelder continuous on an open subset whose complement is of Lebesguemeasure zero. We also give an estimate for the Hausdorff-dimension of the singular set.

10

Increase of quality of public transport service providing easy recognisted time table and high probability of on time departures

Dźwigoń W., Hempel L., Richter M.

Zeszyty Naukowe. Transport / Politechnika Śląska

|

2004

|

z. 55

111-119

EN

The main focus of the considerations of this paper is to provide constant time intervals between buses departing from bus stops. Therefore, relations between characteristics of regularly scheduled urban bus lines are studied. A buffer time between the scheduled arrival time and the departure to the next trip is considered in a deterministic as well in a stochastic framework.

PL

Głównym zagadnieniem tego referatu jest wprowadzenie stałego interwału czasu między autobusami odjeżdżającymi z przystanków. Rozważane są czynniki wpływające na regularność kursowania linii autobusowych. Ważnym składnikiem obliczeń jest czas buforowy na przystankach krańcowych, który jest rozpatrywany w modelach deterministycznych i stochastycznych.

11

Finite-dimensional representations of the value functions of some optimal control problems

Mirica S.

Control and Cybernetics

|

2002

|

Vol. 31, no 3

779-801

EN

In this survey we analyze the possibility of obtaining information on regularity and irregularity properties of the value functions of some optimal control problems from their more precise description as marginal functions of finite-dimensional type, in terms of certain "generalized characteristic flows" which, in turn, may be constructed using either necessary optimality conditions (PMP-Pontryagin's Minimum Principle), whenever applicable, or suitable extensions of Cauchy's Method of Characteristics for the associated Hamilton-Jacobi-Bellman equation. This type of representation, which may be justified either by the application of PMP "combined" with existence theorems or by the application of a suitable verification theorem of Dynamic Programming type, not only facilitates numerical computation of the value function but also may allow identification of its discontinuity points, non-differentiability points, propagation of singularities, etc. ; this approach is illustrated with three significant examples from classical Calculus of Variations.

12

Properties of non-linear waves with singularities along a cusp

Kołakowski H.

Bulletin of the Polish Academy of Sciences. Mathematics

|

2000

|

Vol. 48, no 2

193-201

EN

The paper deals with local solutions to the equation ([...]u = f (x, y, z, u, Du) for which the cusp [x^z = y^3] is characteristic (Du = grad u). A regularity theorem in Gevrey class is proved.