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Wyświetlanie 1-15 z 694
Tytuł:
Selections and representations of multifunctions in paracompact spaces
Autorzy:
Bressan, Alberto
Colombo, Giovanni
Powiązania:
https://bibliotekanauki.pl/articles/1293156.pdf
Data publikacji:
1992
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
directionally continuous selections
Opis:
Let (X,T) be a paracompact space, Y a complete metric space, $F:X → 2^Y$ a lower semicontinuous multifunction with nonempty closed values. We prove that if $T^+$ is a (stronger than T) topology on X satisfying a compatibility property, then F admits a $T^+$-continuous selection. If Y is separable, then there exists a sequence $(f_n)$ of $T^+$-continuous selections such that $F(x)=\overline{{f_n(x);n ≥ 1}}$ for all x ∈ X. Given a Banach space E, the above result is then used to construct directionally continuous selections on arbitrary subsets of ℝ × E.
Źródło:
Studia Mathematica; 1992, 102, 3; 209-216
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Employees motivation and openness for continuous improvement: comparative study in Polish and Japanese companies
Autorzy:
Stadnicka, D.
Sakano, K.
Powiązania:
https://bibliotekanauki.pl/articles/406724.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
continuous improvement
motivation
changes
Opis:
Currently, companies must change and evolve to keep pace with the changing environment, customers’ requirements and to be better than their competitors. The changes result from the need to adapt the products to new customers’ requirements as well as to maintain competitive prices of their products. Therefore, companies should be flexible to guarantee short lead time and minimalize their costs to offer a good price for the customers. At the same time, companies should create good work environment for their employees in order to get them involved in improvement processes. In order to survive and develop companies should motivate and involve their employees into a continuous improvement process in different areas of the company. Unfortunately, as based on the companies’ practice and previous research, in many cases employees are not willing to engage in the company development. Continuous improvement is the basis of the philosophy of Quality Management and Lean Manufacturing, which come from Toyota Production System (TPS). The TPS eventually spread throughout the world, and it is held up as an example of the proper management of a production system. The assumptions of TPS system were used to build systems in other companies, but not always with the same success as it was in Toyota. For this reason, the authors of this paper seek to answer the question of whether there are differences in engagement in a continuous improvement process between employees in a Japanese company and a Polish company operating in the same industry and realizing the similar manufacturing. In order to verify this, the research was conducted in two manufacturing companies which operate in the automotive industry. The results of the study and their analysis are presented in the work.
Źródło:
Management and Production Engineering Review; 2017, 8, 3; 70-86
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Segregation of Elements in Continuous Cast Carbon Steel Billets Designated for Long Products
Autorzy:
Hutny, A. M.
Warzecha, M.
Derda, W.
Wieczorek, P.
Powiązania:
https://bibliotekanauki.pl/articles/354222.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
continuous casting
billet
segregation
Opis:
This article presents research results concerning designation of the scope of segregation of elements by analysing the ingot, designated for hot rolling of long products. The research tests were performed under industrial conditions, during continuous casting production cycle of high carbon steels. From cc ingots with square cross-section of 160 mm samples having the length of 400 mm were collected, out of which two samples were cut up, the so-called templates with the thickness of 20 mm. Segregation of elements was determined based on the quantitative analysis of results performed by using spark spectrometry pursuant to PN-H-04045. Changes in concentrations of elements were analysed along the line, which join the opposite sides of the sample in their half length and pass through the geometric centre of the square cross-section. In the further course of the research study, there was also determined the segregation along perpendicular line up to the surface connecting the core of the cross-section with lateral plane. Designations of element contents were performed at points distanced from each other by approx. 10 mm and situated on the lines. There was found segregation of carbon, sulphur and phosphorus.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 2037-2042
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Understanding of the freeze-out in ultra-relativistic heavy-ion collisions
Autorzy:
Tomašik, B.
Powiązania:
https://bibliotekanauki.pl/articles/147414.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
continuous freeze-out
escape probability
Opis:
I discuss the quantities and effects important for the freeze-out and outline a formalism for the description of continuous decoupling of particles from the fireball. Then, I present a calculation of the scattering rates of pions at various temperatures and argue that it is important to take continuous particle decoupling into account when modelling the collision dynamics.
Źródło:
Nukleonika; 2004, 49,suppl.2; 11-13
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola zarządzania projektami w realizacji koncepcji Continuous Improvement
The role of project management in the implementation of Continuous Improvement
Autorzy:
Kucińska-Landwójtowicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/322263.pdf
Data publikacji:
2017
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
zarządzanie projektami
doskonalenie organizacji
Continuous Improvement
projekty doskonalące
project management
continuous improvement
improvement projects
Opis:
Continuous Improvement jest koncepcją uznawaną w literaturze i praktyce zarządzania za niezbędną w dzisiejszym środowisku biznesowym. Artykuł dotyczy analizy znaczenia i miejsca zarządzania projektami w realizacji założeń ciągłego doskonalenia w organizacjach. W pierwszej części artykułu zaprezentowano wnioski wynikające z analizy literaturowej dotyczącej projektów doskonalących a następnie przedstawiono wyniki badań empirycznych przeprowadzonych w dużym przedsiębiorstwie produkcyjnym. Badanie oparte o studium przypadku pozwoliło na charakterystykę realizowanych projektów oraz identyfikację czynników sprzyjających i utrudniających osiąganie ich celów.
Continuous Improvement is a concept recognized in literature and management practice as essential in today's business environment. The article deals with the analysis of the importance and placement of project management in the implementation of the assumption of Continuous Improvement in manufacturing companies. The first part of the article presents the conclusions resulting from the literature review of the improvement projects implementation and then presents the results of empirical research carried out in the large production company. A case study has allowed the characteristics of the realized projects and identification of factors that are conducive to and obstructive to the achievements of their objectives.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2017, 114; 243-254
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factorization of weakly continuous holomorphic mappings
Autorzy:
González, Manuel
Gutiérrez, Joaqín
Powiązania:
https://bibliotekanauki.pl/articles/1287688.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
weakly continuous holomorphic mapping
factorization of holomorphic mappings
polynomial
weakly continuous multilinear mapping
Opis:
We prove a basic property of continuous multilinear mappings between topological vector spaces, from which we derive an easy proof of the fact that a multilinear mapping (and a polynomial) between topological vector spaces is weakly continuous on weakly bounded sets if and only if it is weakly uniformly} continuous on weakly bounded sets. This result was obtained in 1983 by Aron, Hervés and Valdivia for polynomials between Banach spaces, and it also holds if the weak topology is replaced by a coarser one. However, we show that it need not be true for a stronger topology, thus answering a question raised by Aron. As an application of the first result, we prove that a holomorphic mapping ƒ between complex Banach spaces is weakly uniformly continuous on bounded subsets if and only if it admits a factorization of the form f = g∘S, where S is a compact operator and g a holomorphic mapping.
Źródło:
Studia Mathematica; 1996, 118, 2; 117-133
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Assessment of the Implementation of the Philosophy of Continuous Improvement in Company X – part 1
Ocena wdrażania filozofii ciągłego doskonalenia w firmie X – część pierwsza
Autorzy:
Damian, Ostrowski
Powiązania:
https://bibliotekanauki.pl/articles/529786.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Bankowa we Wrocławiu
Tematy:
continuous improvement
barriers
benefits
Kaizen
Opis:
In this article the results of research regarding the assessment of the level of implementation of the concept of permanent improvement in company X, a large international transport company in Lower Silesia in Poland, are presented. The following areas were researched: the engagement of management, benefits from the application of the concept of continuous improvement in relation to the company and its employees, barriers to effective implementation of the concept and self-assessment by employees.
Źródło:
Central and Eastern European Journal of Management and Economics (CEEJME); 2016, 1; 27-40
2353-9119
Pojawia się w:
Central and Eastern European Journal of Management and Economics (CEEJME)
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some quadratic integral inequalities of first order
Autorzy:
Florkiewicz, BronisŁaw
Kuchta, MaŁgorzata
Powiązania:
https://bibliotekanauki.pl/articles/965998.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
absolutely continuous function
integral inequality
Źródło:
Colloquium Mathematicum; 1998, 75, 1; 7-18
0010-1354
Pojawia się w:
Colloquium Mathematicum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On continuous solutions of a functional equation
Autorzy:
Dankiewicz, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/1310786.pdf
Data publikacji:
1997
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
continuous solution
functional equation
extension
Opis:
This paper discusses continuous solutions of the functional equation φ[f(x)] = g(x,φ(x)) in topological spaces.
Źródło:
Annales Polonici Mathematici; 1996-1997, 65, 2; 151-156
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some quadratic integral inequalities of Opial type
Autorzy:
Kuchta, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1311184.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
absolutely continuous function
integral inequality
Opis:
We derive and investigate integral inequalities of Opial type: $∫_I s|hḣ|dt ≤ ∫_I rḣ² dt$, where h ∈ H, I = (α,β) is any interval on the real line, H is a class of absolutely continuous functions h satisfying h(α) = 0 or h(β) = 0. Our method is a generalization of the method of [3]-[5]. Given the function r we determine the class of functions s for which quadratic integral inequalities of Opial type hold. Such classes have hitherto been described as the classes of solutions of a certain differential equation. In this paper a wider class of functions s is given which is the set of solutions of a certain differential inequality. This class is determined directly and some new inequalities are found.
Źródło:
Annales Polonici Mathematici; 1996, 63, 2; 103-113
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of Steel Flow in the Tundish by Modifying its Working Area
Autorzy:
Warzecha, P.
Hutny, A. M.
Warzecha, M.
Merder, T.
Powiązania:
https://bibliotekanauki.pl/articles/354772.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
tundish
continuous casting
numerical modelling
Opis:
Presented paper describes model investigations carried out on six-strand continuous casting tundish. Numerical analysis is based on simulations performed with the use of commercial code ANSYS Fluent. The analysis concerns determination of hydrodynamic conditions of the flow in the analysed tundish, with nominal capacity of 22 Mg, and its optimisation by modification of the flow structure in the tundish working area. Four different flow control devices (FCD) were proposed. Results of investigations presented in the paper include the distribution of velocity vectors and distribution of temperature and turbulence kinetic energy. Additionally, for more detailed comparative analysis, the macroscopic characteristics of residence time distribution (RTD) in the reactor, and the transition zone ranges were determined for each of the variants.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 2071-2078
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of discontinuous milling operations into the flow production of sheet metal profiles
Autorzy:
Schmidt, S.
Abele, E.
Powiązania:
https://bibliotekanauki.pl/articles/99711.pdf
Data publikacji:
2014
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
milling
HSC
continuous flow production
Opis:
This paper is about the integration of discontinuous milling operations into the continuous flow production line of branched sheet metal profiles in an integral design. A major challenge is the non-existing possibility to clamp the work piece due to its constant feed. The machining on the fly itself is only possible through synchronizing the movement of the machine tools axes with the continuous feed of the sheet metal profile.
Źródło:
Journal of Machine Engineering; 2014, 14, 4; 95-102
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odpowiedzialność za czyn ciągły po ostatnich nowelizacjach Kodeksu karnego
Autorzy:
Zientara, Anna
Powiązania:
https://bibliotekanauki.pl/articles/48899283.pdf
Data publikacji:
2023-01-23
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
continuous crime
concurrence of misdemeanors
Opis:
This study contains an analysis of the amendments to the Polish Penal Code relating to the term of continuous act made by the Act of October 4, 2018, and the Act of June 19, 2020. The first Act introduced a new section to Article 12 of the Penal Code, which states that “anyone who, in short intervals, using one and the same or identical opportunity or in a similar manner commits two or more intentional misdemeanors against property, if the total value of the property justifies liability for the crime, shall be held liable as for a single crime.” This provision raises a number of doubts about the nature of the institution it introduces – whether it is a type of continuous crime or a real concurrence of misdemeanors. The study also includes an analysis of the second amendment, which changed the penalty for a continuous act. An attempt is then made to evaluate the changes introduced by these two Acts.
Źródło:
Studia Iuridica; 2022, 93; 302-317
0137-4346
Pojawia się w:
Studia Iuridica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer Software Tool for the Design of Optimal Thermal Cycles in the Continuous Annealing of DP Steels
Autorzy:
Górecki, G.
Madej, Ł.
Pietrzyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/99406.pdf
Data publikacji:
2014
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
DP steels
continuous annealing
virtual process
Opis:
The objective of the paper was development of the software tool, which can be used to design the best continuous annealing technology for DP steels in a fast and efficient way. The model of phase transformations during heating and cooling stages, which is the basis of this tool, is described briefly. Results of identification and validation of the model are presented, as well. Due to complex thermal cycles in the continuous annealing process and large number of the design variables, selection of the optimal technology is difficult. It is expected that the developed model will help to evaluate various technological variants and to compare them. To make this procedure more efficient, the user friendly software was developed. Basic principles and features of this tool are presented in the work. The main functionalities of the software compose simulation of phase transformations during thermal cycles and capability to apply simulations to design the best technological variant. Beyond this a data base, which stores material and technological information for all previously analysed cases, is included in the developed software. Graphical user interface is added to make the software easily accessible and user friendly.
Źródło:
Journal of Machine Engineering; 2014, 14, 1; 74-83
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamical modeling and coupling characteristic analysis of the multistage gears system in a continuous miner
Autorzy:
Lu, Wenjia
Zhang, Yimin
Cheng, Hongchuan
Yang, Zhou
Powiązania:
https://bibliotekanauki.pl/articles/279213.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
planets
multistage gear
continuous miner
acceleration
Opis:
The lumped parameter method is adopted to establish a dynamic model of two stage planets and multistage fixed-shaft gears in which the effect of coupling shaft section radius on the system in a continuous miner is considered. The acceleration test of the system proves the accuracy of the proposed model. With the increase of cross section size of the coupled shaft, the influence of the first stage meshing frequency on the second stage planetary system is enhanced. The acceleration decreases gradually with the increase of the size of coupled carrier. It is shown that the modeling by considering the coupled size contributes to reduction of the vibration level.
Źródło:
Journal of Theoretical and Applied Mechanics; 2020, 58, 1; 45-58
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 694

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