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Tytuł:
Using collaborative management in industrial clusters – case study of Italian energy cluster
Autorzy:
Taurino, T.
Powiązania:
https://bibliotekanauki.pl/articles/407255.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
collaboration
collaborative networks
collaborative economy
network contract
energy cluster
Opis:
In the current industrial scenarios those involved in production and services distribution are called to deal with a plurality of stakeholders, considering different interests, readings and positions. This paper exploits the concept of collaboration in this fast changes and flexible scenario by describing the characteristics of collaboration among enterprises and their scope. In this context, the purpose of all managers to maximize utility, to save cost or to minimize of transaction costs is hard to be reached. Under this prospective, to collaborate with other firms is a logical way to work and to pursue the previous objectives. The purpose of this paper is to define all the aspects of collaboration, mainly among enterprises, and the reasons that can drive a manager to stipulate a collaboration agreement. Two different ways, through collaboration can rise, have been described: collaboration induced by external body (top-down collaboration) or born in a spontaneous way (bottom-up). The management of the collaboration and the identification of key performance indicators, able to control the development of the network system, is addressed by exploiting the Italian network contract and the case study of the energy cluster.
Źródło:
Management and Production Engineering Review; 2018, 9, 4; 138-149
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Method for Estimating the Least Number of Objects in Fuzzy Clusters
Autorzy:
Viattchenin, D. A.
Yaroma, A.
Powiązania:
https://bibliotekanauki.pl/articles/226222.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
possibilistic clustering
fuzzy cluster
allotment
cluster size
Opis:
The theoretical note deals with the problem of estimation of the value of the least number of objects in fuzzy clusters for following detection of the optimal number of objects in fuzzy clusters through heuristic possibilistic clustering. A technique for detecting the optimal maximal number of elements in the a priori unknown number of fuzzy clusters of the sought clustering structure is reminded and a procedure for finding the initial minimal value of the number of objects in fuzzy clusters is proposed. Numerical examples are considered and conclusions are formulated.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 4; 341-346
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cluster Based Optimization of Routing in Distributed Sensor Networks Using Bayesian Networks with Tabu Search
Autorzy:
Bhajantri, L. B.
Nalini, N.
Powiązania:
https://bibliotekanauki.pl/articles/226310.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Distributed Sensor Networks
routing
cluster head
Bayesian Network
tabu search
Opis:
Distributed Sensor Networks (DSNs) have attracted significant attention over the past few years. A growing list of many applications can employ DSNs for increased effectiveness especially in hostile and remote are as. In all application salargen umber of sensors are expected and requiring careful architecture and management of the net work. Grouping nodes in toclusters has been the most popular approach for support scalability in DSN. This paper proposes acluster based optimization of routing in DSN by employing a Bayesi an network (BN) with Tabu search (TS) approach. BN based approach is used to select efficient cluster head sand construction of BN for the proposed scheme. This approach in corporates energy level of each node, band width and link efficiency. The optimization of routing is considered as a design issue in DSN due to lack of energy consumption, delay and maximum time required for data transmission between source nodes (cluster heads) to sink node. In this work optimization of routing takes place through cluster head nodes by using TS. Simulations have been conducted to compare the performance of the proposed approach with LEACH protocol. The objective of the proposed work is to improve the performance of network in terms of energy consumption, through put, packet delivery ratio, and time efficiency of optimization of routing. The results hows that the proposed approach perform better than LEACH protocol that utilizes minimum energy, latency for cluster formation and reduce over head of the protocol.
Źródło:
International Journal of Electronics and Telecommunications; 2014, 60, 2; 199-208
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proposal of a regional grid cluster model for analysis of electrical power network performance
Autorzy:
Li, Yang
Janik, Przemysław
Schwartz, Harald
Pfeiffer, Klaus
Powiązania:
https://bibliotekanauki.pl/articles/2135739.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
decentralized generation
grid cluster
power balance
regional power grid
Opis:
This paper provides a method for simplified description of a regional power grid model aimed to deliver a grid reduction, and improve grid performance observability. The derived power grid model can be used to analyze the regional allocation of the decentralized energy generation and consumption. The expansion of wind and solar generation in the power system affects the residual load. The power balance between electricity consumption and generation was calculated and analyzed based on the temporal and spatial scales. The proposed grid clustering method is a useful approach for performance analysis in systems with a growing share of renewable generation.
Źródło:
Archives of Electrical Engineering; 2022, 71, 3; 601--613
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cluster consensus of general fractional-order nonlinear multi agent systems via adaptive sliding mode controller
Autorzy:
Yaghoubi, Zahra
Talebi, Heidar Ali
Powiązania:
https://bibliotekanauki.pl/articles/230002.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nonlinear multi agent systems
cluster consensus
fractional-order systems
adaptive sliding mode controller
Opis:
In this paper cluster consensus is investigated for general fractional-order multi agent systems with nonlinear dynamics via adaptive sliding mode controller. First, cluster consensus for fractional-order nonlinear multi agent systems with general form is investigated. Then, cluster consensus for the fractional-order nonlinear multi agent systems with first-order and general form dynamics is investigated by using adaptive sliding mode controller. Sufficient conditions for achieving cluster consensus for general fractional-order nonlinear multi agent systems are proved based on algebraic graph theory, Lyapunov stability theorem and Mittag-Leffler function. Finally, simulation examples are presented for first-order and general form multi agent systems, i.e. a single-link flexible joint manipulator which demonstrates the efficiency of the proposed adaptive controller.
Źródło:
Archives of Control Sciences; 2019, 29, 4; 643-665
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
5 Cs of Investment Casting Foundries in Rajkot Cluster – An Industrial Survey
Autorzy:
Sata, A. V.
Maheta, Nikunj R.
Powiązania:
https://bibliotekanauki.pl/articles/2079784.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
investment casting
capability
industrial components
concerns
challenges
Rajkot cluster
odlewanie inwestycyjne
zdolność
elementy przemysłowe
koncern
Rajkot
Opis:
Investment casting is very well-known manufacturing process for producing relatively thin and multifarious industrial components with high dimensional tolerances as well as admirable surface finish. Investment casting process is further comprised of sub-processes including pattern making, shell making, dewaxing, shell backing, melting and pouring. These sub-processes are usually followed by heat treatment, finishing as well as testing & measurement of castings. Investment castings are employed in many industrial sectors including aerospace, automobile, bio-medical, chemical, defense, etc. Overall market size of investment castings in world is nearly 12.15 billion USD and growing at a rate of 2.8% every year. India is among the top five investment casting producer in the world, and produces nearly 4% (considering value of castings) of global market. Rajkot (home town of authors) is one of largest clusters of investment casting in India, and has nearly 175 investment casting foundries that is almost 30% of investment casting foundries of India. An industrial survey of nearly 25% of investment casting foundries of Rajkot cluster has been conducted in the year 2019-20 in order to get better insight related to 5 Cs (Capacity; Capability; Competency; Concerns; Challenges) of investment casting foundries located in the cluster. Specific set of questionnaires was design for the survey to address 5 Cs of investment casting foundries of Rajkot cluster, and their inputs were recorded during the in-person survey. The industrial survey yielded in providing better insight related to 5 Cs of foundries in Rajkot cluster. It will also help investment casting producer to identify the capabilities and quality issues as well as leads to benchmarking respective foundry.
Źródło:
Archives of Foundry Engineering; 2021, 21, 3; 102-108
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ɵ(1) Time Algorithm for Master Selection in Ad-hoc Wireless Networks
Autorzy:
Khattabi, Mohammed
Elmesbahi, Jelloul
Khaldoun, Mohammed
Errami, Ahmed
Bouattane, Omar
Powiązania:
https://bibliotekanauki.pl/articles/226674.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cluster-based networks
cluster head selection
ad-hoc networks
wireless sensors networks
SDR
USRP
simulink
Opis:
This paper details a hardware implementation of a distributed Ɵ(1) time algorithm allows to select dynamically the master device in ad-hoc or cluster-based networks in a constant time regardless the number of devices in the same cluster. The algorithm allows each device to automatically detect its own status; master or slave; based on identifier without adding extra overheads or exchanging packets that slow down the network. We propose a baseband design that implements algorithm functions and we detail the hardware implementation using Matlab/Simulink and Ettus B210 USRP. Tests held in laboratory prove that algorithm works as expected.
Źródło:
International Journal of Electronics and Telecommunications; 2020, 66, 3; 521-527
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Funkcjonowanie i zasięg oddziaływania przestrzennego klastra „Uzdrowiska świętokrzyskie”
The functioning and scope of spatial interaction of the „Świętokrzyskie Health-Resorts Cluster”
Autorzy:
Barcicki, M.
Gałuszka, G.
Kamińska, W.
Wilk-Grzywna, M.
Powiązania:
https://bibliotekanauki.pl/articles/2031826.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Health-resorts cluster
Polska
spatial extent
Świętokrzyskie voivodeship
Opis:
The aim of the article is to assess the functioning and scope of spatial interaction of the Świętokrzyskie Health-Resorts Cluster. It is one of the younger clusters of this type operating in the country. The study found that cluster functioning was not fully effective as the networks of cooperation and competition were mainly confined to members’ participation in conferences and working meetings. The biggest shortcoming of this cluster is the lack of formalized cooperation of members. Cluster functions as regional and supra-regional. The therapists come mainly from the Świętokrzyskie region and the neighboring regions.
Źródło:
Biuletyn Komitetu Przestrzennego Zagospodarowania Kraju PAN; 2017, 267; 133-162
0079-3493
Pojawia się w:
Biuletyn Komitetu Przestrzennego Zagospodarowania Kraju PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cluster analysis in research of accident rate in construction sector
Analiza skupień w badaniu wypadkowości w sektorze budowlanym
Autorzy:
Drozd, W.
Powiązania:
https://bibliotekanauki.pl/articles/230171.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
plac budowy
bezpieczeństwo pracy
wypadek przy pracy
analiza skupień
construction site
work safety
accident at work
cluster analysis
Opis:
The construction site and its elements create circumstances that are conducive to the formation of risks to work safety during the execution of works. Analysis indicates the critical importance of these factors in the set of characteristics that describe the causes of accidents in the construction industry. This paper attempts to analyse the characteristics of the construction site to indicate their importance in defining the circumstances of an accident at work. The research was carried out on the basis of data from the register kept by the District Labour Inspectorate in Krakow, Poland. Main substantive tasks include isolating patterns of accidents on site and identifying those of the analysed characteristics that are important in defining these patterns. In terms of methodology, the paper presents a method of analysing data resources by using means of conceptual grouping in the form of cluster analysis.
Wypadki przy pracy, jako zdarzenia na terenie budowy, są zjawiskami losowymi, trudnymi lub niemożliwymi do przewidzenia. Dlatego ich badanie i wskazanie związków, między charakteryzującymi je cechami, nie jest łatwe. Dotyczy to w szczególności analiz, w których przedmiotem badań są czynniki generujące niepożądane następstwa dla życia i zdrowia ludzi. W niniejszym artykule podjęto próbę identyfikacji i profilowania wzorców wypadków, na podstawie danych z prowadzonego w Okręgowym Inspektoracie Pracy, w Krakowie - rejestru. Dyskutowanymi były zdarzenia wypadkowe w latach 2014 – 16. Liczba obserwacji wynosiła 65. Zasadniczy cel skoncentrowano na wyodrębnieniu wzorców wypadków budowlanych i wskazaniu na te spośród analizowanych cech, które mają istotne znaczenie w definiowaniu tych wzorców.
Źródło:
Archives of Civil Engineering; 2018, 64, 3; 159-172
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cluster and R&D affecting the competitive advantage of the mould and die sector in the Thai automotive industry
Autorzy:
Fongsuwan, W.
Chamsuk, W.
Tawinunt, K.
Tiengtavaj, S.
Dansomboon, S.
Takala, J.
Powiązania:
https://bibliotekanauki.pl/articles/406944.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
competitive advantage
research and development
cluster
automotive parts
mould
die
Opis:
This study concerned clusters as well as research and development affecting the competitive advantage of the Thai automotive industry’s mould and die sector. The study of development, examination of the consistency of the structural equation model, and the direct influence of linkage and association of cluster, as well as research and development for competitive advantage of operational locations in the Thai automotive mould & die sector was carried out as well. Data was collected from 320 mould and die industry operators in Thailand with the goal of obtaining key information to align the business direction in response to market opportunities. An additional goal was to elevate the competitiveness of the Thai automotive mould and die industry toward positive growth and continual sustainability.
Źródło:
Management and Production Engineering Review; 2017, 8, 4; 3-12
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Examination of Clustering in Eutectic Microstrcture
Autorzy:
Bortnyik, K.
Barkóczy, P.
Powiązania:
https://bibliotekanauki.pl/articles/356769.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
eutectic
microscopy
image analysis
data mining
cluster analysis
Opis:
The eutectic microstructures are complex microstructures and a hard work to describe it with few numbers. The eutectics builds up eutectic cells. In the cells the phases are clustered. With the development of big databases the data mining also develops, and produces a lot of method to handling the large datasets, and earns information from the sets. One typical method is the clustering, which finds the groups in the datasets. In this article a partitioning and a hierarchical clustering is applied to eutectic structures to find the clusters. In the case of AlMn alloy the K-means algorithm work well, and find the eutectic cells. In the case of ductile cast iron the hierarchical clustering works better. With the combination of the partitioning and hierarchical clustering with the image transformation, an effective method is developed for clustering the objects in the microstructures.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1155-1159
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koncepcja klastra a konkurencyjność i innowacyjność przedsiębiorstw
The Influence of Cluster Concept on Competitiveness and Innovation of Enterprises
Autorzy:
Rożek, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/2029784.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Studia komitetu przestrzennego zagospodarowania kraju PAN; 2011, 140; 375-384
0079-3507
Pojawia się w:
Studia komitetu przestrzennego zagospodarowania kraju PAN
Dostawca treści:
Biblioteka Nauki
Artykuł

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