15,757 research outputs found
Search-Based Model Transformations
Huge efforts have been invested in the last decade concerning the establishment of dedicated analysis methods and techniques for model transformations. The analysis of general properties such as termination and confluence as well as specific properties defined for one particular transformation have been studied for different transformation kinds and languages. What most transformation analyses have in common is that they consider the transformation specifications as their primary source. However, as I will show in my presentation, methods and techniques deployed for analysing potential transformation executions at runtime are needed as well. As transformation executions quickly span huge transformation spaces, I will show how to effectively analyse and guide transformation executions towards fulfilling multiple, potentially conflicting transformation goals by employing search-based techniques.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
Rational extensions of the representation ring global functor and a splitting of global equivariant -theory
We identify the group of homomorphisms
in the category
of ()-global functors to the rationalization of the unitary
representation ring functor and deduce that the higher
-groups
,
have to vanish. This leads to a rational splitting of the
()-global equivariant -theory spectrum into a sum of
Eilenberg-MacLane spectra. Interpreted in terms of cohomology theories, it
means that the equivariant Chern character is compatible with restrictions
along all group homomorphisms.Comment: 10 page
Intercultural Polylogues in Philosophy
Statement to Panel "Intercultural Dialogue", 29th Wittgenstein-Conference of the ALWS
Kirchberg am Wechsel, August 11th 2006. Other statements, in the order of contribution, have
been given by: Mohammed Shomali (Qom, Iran), Patrick Riordan SJ (London, UK), and
Eveline Goodman-Thau (Jerusalem, Israel)
Since this is a conference of philosophers about philosophy and matters relevant to
philosophy, I shall not talk about intercultural dialogues in general, nor will I speak about
dialogues in the fields of religion or culture (fields which have to be distinguished, by the
way), dialogues between politicians, etc. My statement will try to concentrate on
intercultural dialogues in philosophy. This means, according to my understanding of
"philosophy", that I have in mind essentially dialogues on ontological, on epistemological,
or on normative questions
Ferromagnetic one dimensional Ti atomic chain
Using the full potential linearized augmented plane wave (FLAPW) method, we
have explored the magnetic properties of one dimensional (1D) Ti atomic chain.
Astonishingly, we for the first time observed that the 1D Ti atomic chain has
ferromagnetic ground state even on NiAl(110) surface although the Ti has no
magnetic moment in bulk or macroscopic state. It was found that the physical
property of direct exchange interaction among Ti atoms occurred in free
standing state is well preserved on NiAl(110) surface and this feature has an
essential role in ferromagnetism of 1D Ti atomic chain. It was shown that the
m= state has the largest contribution to the magnetic moment of Ti atom
grown on NiAl(110) surface. In addition, we found that the magnetic dipole
interaction is a key factor in the study of magnetic anisotropy, not the
magnetocrystalline anisotropy arising from spin-orbit interaction
Initial inventory levels for a book publishing firm = Kezdőkészletek egy könyvkiadó vállalatnál
Egy könyvkiadó vállalatot vizsgálunk. A kiadó kiadványait a szokásos értékesítési láncon (kis- és nagykereskedelem) keresztül értékesíti. A kérdés az, hogy egy új könyv példányait hogyan allokálja az értékesítési láncban. Feltételezzük, hogy a kereslet ismert, Poisson-eloszlású. A készletezés költségeit szintén ismertnek tételezzük fel. Cél a költségek minimalizálása. = The aim of the paper is to analyze a practical real world problem. A publishing house is given. The publishing firm has contacts to a number of wholesaler / retailer enterprises and direct contact to customers to satisfy the market demand. The book publishers work in a project industry. The publisher faces with the problem to allocate the stocks of a given, newly published book to the wholesaler and retailer, and to hold some copies to satisfy the customers direct from the publisher. The distribution of the demand is unknown, but it can be estimated. The costs consist of inventory holding and shortage, backorder costs. The decision maker wants to minimize these relevant costs.
The problem can be modeled as a one-warehouse and N-retailer supply chain with not identical demand distribution. The problem structure is similar that of a newsvendor model. It is assumed that the demand distribution follows a Poisson distribution
Buyback and return policies for a book publishing firm = Egy könyvkiadó vállalat visszavásárlási stratégiája
A dolgozat célja egy vállalati gyakorlatból származó eset elemzése. Egy könyvkiadót tekintünk. A kiadó kapcsolatban van kis- és nagykereskedőkkel, valamint a fogyasztók egy csoportjával is vannak kapcsolatai. A könyvkiadók projekt rendszerben működnek. A kiadó azzal a problémával szembesül, hogy hogyan ossza el egy frissen kiadott és nyomtatott könyv példányszámait a kis- és nagykereskedők között, valamint mekkora példányszámot tároljon maga a fogyasztók közvetlen kielégítésére. A kiadóról feltételezzük, hogy visszavásárlási szerződése van a kereskedőkkel. A könyv iránti kereslet nem ismert, de becsülhető. A kis- és nagykereskedők maximalizálják a nyereségüket. = The aim of the paper is to analyze a practical real world problem. A publishing house is given. The publishing firm has contacts to a number of wholesaler / retailer enterprises and direct contact to customers to satisfy the market demand. The book publishers work in a project industry. The publisher faces with the problem how to allocate the stocks of a given, newly published book to the wholesaler and retailer, and to hold some copies to satisfy the customers direct from the publisher. The publisher has a buyback option. The distribution of the demand is unknown, but it can be estimated. The wholesaler / retailer maximize the profits.
The problem can be modeled as a one-warehouse and N-retailer supply chain with not identical demand distribution. The model can be transformed in a game theory problem. It is assumed that the demand distribution follows a Poisson distribution
Development journalism out of date?
The mass media occupy a central position within the processes of social change in Africa. Since successful journalism education can be formative for the further development of the African communication sector, the authors investigate the borderland of theoretical systematisation and empirical research of journalism. This is carried out via the following steps: (1) Firstly, the theoretical and practical basis of the phenomenon of development journalism is exposed and it is referred to its connection to journalism education in Africa. (2) Through the evaluation of African journalism education on the basis of training locations and programmes, the authors are able to pursue the question, which position development journalism takes in current journalism education. (3) The preliminary results show an expansion and differentiation in journalism education in Africa. In principle, this is a positive process, which, however, does not take place to a high extent
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