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1.
Snovanje digitalnih sistemov z jezikom VHDL : diplomsko delo
Andrej Kruščič, 1995, diplomsko delo

Ključne besede: VHDL, digitalni sistemi, VLSI, ALLIANCE, integrirana vezja
Objavljeno: 26.07.2007; Ogledov: 1398; Prenosov: 0

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BREZŽIČNO SENZORSKO OMREŽJE MiWi
Sebastjan Kolenc, 2014, diplomsko delo

Opis: V diplomskem delu smo na kratko opisali brezžični protokol MiWi, kateri izhaja iz protokola ZigBee (IEEE 802.15.4). ZigBee je bil v osnovi zamišljen kot WPAN odprt standard za radijsko omrežje, ki bi bil alternativa za ostala brezžična omrežja Bluetooth in Wireless. Protokol je primeren za uporabo v brezžičnih senzorskih omrežjih, primernih za industrijsko okolje. Gre preprosto zato, da imamo neko množico elementov (gradniki ZigBee omrežja oz. senzorska vozlišča) omrežja, povezanih med seboj tako, da tvorijo omrežje za prenos podatkov na kratkih razdaljah 10-100m. Vendar so ti podatki količinsko zelo majhni. Prednost takega omrežja je v tem, da se podatki pošiljajo v majhnih paketih (količinsko omejeni), hkrati pa so gradniki omrežja aktivni samo takrat, ko pride do prenosa podatkov (paketov). Takrat kadar ni prenosa podatkov se gradnik (njegov radijski del) izklopi in s tem privarčuje pri energiji. To pomeni, da so takšni gradniki omrežja primerni za aplikacije v težko dostopnih območjih (industrijska okolja), ker ne potrebujejo vzdrževanja in bi bila zamenjava vira energije (baterija) za njihovo delovanje možna z velikimi napori in stroški. Ker je po določenem obdobju uporabe ZigBee protokola, združenje ZigBee Aliance ta protokol postopoma nadgrajevalo, je postal zelo kompleksen. Zato se je porodila ideja, kako napraviti omrežje, ki temelji na ZigBee protokolu in je bolj prijazno do uporabnika. Tako je nastal protokol MiWi, ki je opisan v diplomski nalogi. V diplomski nalogi, je v praktičnem delu predstavljeno, kako postaviti enostavno “peer-to-peer“ brezžično senzorsko povezavo v brezžičnem senzorskem omrežju z uporabo protokola MiWi ter praktični primer pošiljanja podatkovnega paketa določene dolžine in vsebine preko omrežja.
Ključne besede: Brezžično senzorsko omrežje, WPAN, ZigBee, MiWi, standard IEEE 802.15.4, ZigBee Alliance, industrijsko okolje
Objavljeno: 27.05.2014; Ogledov: 1099; Prenosov: 96
.pdf Celotno besedilo (4,01 MB)

4.
Problem of trust in alliance networks
Władzimierz Sroka, 2011, izvirni znanstveni članek

Opis: At a time of growing globalization, we can observe the increasing role of cooperative strategies among companies, including alliances, joint ventures, and networks. Trust is one of the most important factors of success for any business activity. It relates especially to alliance networks because it can lower transaction costs, increase productivity and innovativeness, facilitate inter-organizational relationships and resolve conflicts. Therefore the article comprehensively discusses the problems of trust in alliance networks. The conclusion of the text is that trust building in alliance networks has an influence on the effectiveness of the whole network. The text is based on the latest world literature as well as the personal experience of the author in creating effective cooperative network agreements.
Ključne besede: trust, cooperation, partnership, relationships, alliance networks, opportunism
Objavljeno: 10.07.2015; Ogledov: 234; Prenosov: 125
.pdf Celotno besedilo (666,28 KB)
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5.
Alliance networks
Władzimierz Sroka, 2010, izvirni znanstveni članek

Opis: The article deals with the problems of cooperation in network organizations. The structure of the text is divided into a couple of parts. Firstly, the increasing importance of alliance networks is described. Secondly, the concept of alliance networks as well as the essence of multinational corporations are presented. Beside theoretical deliberations, two practical cases are presented in the text too. First case relates to the Toyota keiretsu and the second one describes the network organization of the largest steel manufacturer in the world, i.e. ArcelorMittal Group. Last part of the text is the comparative analysis of the multinational corporations network vs. networks of small and medium size companies. The similarities as well as differences between both forms were presented. The article is based on the latest world literature devoted to the cooperative strategies as well as the practical business experience of the author from the work in Arcelor Mittal Poland and polish machine industry.
Ključne besede: cooperation, alliance network, multinational corporation, keiretsu group, steel industry
Objavljeno: 10.07.2015; Ogledov: 197; Prenosov: 30
.pdf Celotno besedilo (307,21 KB)
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6.
Open $k$-monopolies in graphs: complexity and related concepts
Dorota Kuziak, Iztok Peterin, Ismael G. Yero, 2016, izvirni znanstveni članek

Opis: Closed monopolies in graphs have a quite long range of applications in several problems related to overcoming failures, since they frequently have some common approaches around the notion of majorities, for instance to consensus problems, diagnosis problems or voting systems. We introduce here open ▫$k$▫-monopolies in graphs which are closely related to different parameters in graphs. Given a graph ▫$G=(V,E)$▫ and ▫$X \subseteq V$▫, if ▫$\delta_X(v)$▫ is the number of neighbors ▫$v$▫ has in ▫$X$▫, ▫$k$▫ is an integer and ▫$t$▫ is a positive integer, then we establish in this article a connection between the following three concepts: (1) Given a nonempty set ▫$M\subseteq V$▫ a vertex ▫$v$▫ of ▫$G$▫ is said to be ▫$k$▫-controlled by ▫$M$▫ if ▫$\delta_M(v)\ge \frac{\delta_V(v)}{2}+k$▫. The set ▫$M$▫ is called an open ▫$k$▫-monopoly for ▫$G$▫ if it ▫$k$▫-controls every vertex ▫$v$▫ of ▫$G$▫. (2) A function ▫$f: V\rightarrow \{-1,1\}$▫ is called a signed total ▫$t$▫-dominating function for ▫$G$▫ if ▫$f(N(v))=\sum_{v\in N(v)}f(v)\geq t$▫ for all ▫$v\in V$▫. (3) A nonempty set ▫$S\subseteq V$▫ is a global (defensive and offensive) ▫$k$▫-alliance in ▫$G$▫ if ▫$\delta_S(v)\ge \delta_{V-S}(v)+k$▫ holds for every ▫$v\in V$▫. In this article we prove that the problem of computing the minimum cardinality of an open ▫$0$▫-monopoly in a graph is NP-complete even restricted to bipartite or chordal graphs. In addition we present some general bounds for the minimum cardinality of open ▫$k$▫-monopolies and we derive some exact values.
Ključne besede: open k-monopolies, k-signed total domination, global defensive k-alliance, global offensive k-alliance
Objavljeno: 10.07.2017; Ogledov: 255; Prenosov: 41
.pdf Celotno besedilo (181,59 KB)
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7.
Application of modern management concepts by Polish companies
Marek Lisiński, Władzimierz Sroka, Paweł Brzeziński, Adam Jabłonski, Joanna Stuglik, 2012, izvirni znanstveni članek

Opis: Our article presents the results of research on the use of modern management concepts in companies from the so-called traditional sectors of the economy in Lesser Poland and Silesia Voivodeships. The study group consists of 125 companies operating in metallurgy- and steel-related sectors such as machinery, coke, mining and energy. Studies have confirmed that the companies surveyed utilise modern management concepts in their activities, although such utilisation is highly diverse (only one company pointed out that it does not utilise any such concepts). The most popular management concepts are controlling and outsourcing. In contrast, Balanced Scorecard and Business Process Reengineering belong to the group of rarely used strategies.
Ključne besede: management concept, controlling, outsourcing, TQM, strategic alliance
Objavljeno: 28.11.2017; Ogledov: 279; Prenosov: 41
.pdf Celotno besedilo (856,89 KB)
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