We introduce a set of state access patterns suitable for managing accesses to state in parallel computations operating on streams. The state access patterns are useful for modelling typical stream parallel applications. We present a classification of the patterns according to the extent and way in which the state can be structured and accessed. We define precisely the state access patterns and ...

As ever new sensor solutions are invading people’s everyday lives and business processes, the use of the signals and events provided by the devices poses a challenge. Innovative ways of handling the large amount of data promise an effective and efficient means to overcome that challenge. With the help of complex event processing and predictive techniques, added value can be created. While compl...

Guess-and-determine attacks are based on guessing a subset of internal state bits and subsequently using these guesses together with the cipher’s output function to determine the value of the remaining state. These attacks have been successfully employed to break NFSRbased stream ciphers. The complexity of a guess-and-determine attack is directly related to the number of state bits used in the ...

The corporate headquarters (CHQ) is the central organizational unit in the contemporary corporation, and is critical for value creation in the overall firm. Since the early 1960s, a significant body of research on the CHQ has evolved along two separate but related streams. The first stream focuses on the CHQ in the multibusiness firm, while the second stream concerns the CHQ in the multinationa...

Lean service operations and lean management are of vital importance for all providers as much manufacturers. Unfortunately, most universities need to be made aware the concept lean. However, they can benefit from in their areas, such admissions, administration research funds, hiring, nearly any functional area where multi-step processes simplified focused on needs users served by organization. ...

Well-designed initialisation and keystream generation processes for stream ciphers should ensure that each key-IV pair generates a distinct keystream. In this paper, we analyse some ciphers where this does not happen due to state convergence occurring either during initialisation, keystream generation or both. We show how state convergence occurs in each case and identify two mechanisms which c...

  Performance and capacity of sulfur recovery unit (SRU) are greatly affected by the H2S:CO2 ratio of the acid gas stream. The acid gases in Iran contain around 35 mol% H2S and 60 mol% CO2. This low concentration of H2S calls for more complex sulfur plant, larger equipments, and higher costs. Acid gas enrichment processes (AGE) is run to upgrade low quality acid gas collected from gas treating...

Within the framework of “Value stream oriented process management” value stream mapping and the short-cyclic improvement routine are integrated into the organizational framework of process management in order to enable a methodically fostered improvement of value streams in different levels of detail. Therefore an advanced and sustainable continuous improvement process is enabled.