Stepanov-Like Pseudo Almost Periodic Solution of Quaternion-Valued for Fuzzy Recurrent Neural Networks with Mixed Delays

Neural Processing Letters - Real-valued neural networks or complex-valued neural networks are sometimes inappropriate for some engineering and research problems for instance where the data is...     

Behaviour of Listeria monocytogenes in raw sausages (merguez) in presence of a bacteriocin-producing lactococcal strain as a protective culture

The effectiveness of a bacteriocin produced by Lactococcus lactis subsp. lactis M in reducing population level and growth of Listeria monocytogenes ATCC 7644 in fermented merguez sausage was examined. Two different formulas (with or without added nitrites) were assayed and predetermined numbers of Listeria (ca 10⁶ cfu g⁻¹) were added to sausage mixture. The effect of in situ production of the bacteriocin by Lactococcus lactis M on Listeria monocytogenes ATCC 7644 during fermentation and storage of merguez sausages at room (ca 22 °C) or at refrigeration (ca 7 °C) temperature was tested. Results indicated that counts of Listeria monocytogenes were decreased during fermentation of merguez samples fermented with either the bacteriocin-producing Lactococcus lactis M (Bac⁺) or a nonbacteriocin-producing Lactococcus lactis J (Bac⁻). However, reduction in Listeria cfu's was greater in samples fermented with the Bac⁺ than in those fermented with the Bac⁻ starter. In merguez sausage made without nitrites addition, the Bac⁺ starter induced further decrease in Listeria counts by 1.5 log cycles compared with that induced by the Bac⁻ starter. While in merguez samples with added nitrites (0.4%), the effect of the bacteriocin produced in situ was less important than in those made without nitrites addition.     

Performance Analysis on Network-Based Distributed Mobility Management

Recently, various efforts from both industry and academia are being performed on specifying distributed mobility management (DMM). One of the early and promising network-based DMM proposals is dynamic mobility anchoring (DMA). This paper carries out a performance analysis on DMA in terms of mobility costs and handover performance, comparing it with proxy mobile IPv6 (PMIPv6). For the cost analysis, we consider signaling, processing, data packet delivery, and tunneling costs. For the handover analysis, we consider handover latency, handover failure probability, and handover packet loss as performance metrics. The impacts of several parameters on the mobility costs and handover performance are investigated. The results show that DMA outperforms PMIPv6 significantly in optimizing the network resources consumption as well as the mobility management performance.     

Place names and landscape character: a case study from Otago Region,New Zealand

Landscape characterisation has become an important tool in the interpretation of the distinctive features, patterns and identity of a region for planning purposes. However, conventional assessment methods that focus upon visual character may overlook some cultural values. This study investigates how toponymy—the analysis of place names—can be undertaken as a contribution to landscape characterisation. The study focus is Otago Region, New Zealand, which has a diverse landscape and a reliable database of place names. The study reported here involves analysis of 696 place names relating to 31 types of landscape feature derived from maps. The majority of names were connected with symbolic historic and cultural associations, mainly people. Biophysical characteristics including landform and hydrological features were also prominent. Names associated with the indigenous culture, Maori, were layered with those from European colonisation. Systematic analysis of place names highlights both presence and displacements of cultural memory and offers potential for an additional rich layer of interpretation in landscape characterisation.     

On the Role of High Amounts of Mn Element in CdS Structure

CdS and MnS are technologically important semiconducting materials. In this work, due to the limited ability of these materials separately, a detailed characterization of the new samples formed by the combined use of them has been reported. CdS films, with the incorporation of Mn in a wide range of concentrations, have been produced by a low-cost Ultrasonic Spray Pyrolysis set-up. Spectroscopic Ellipsometry (SE) has been used to determine the thicknesses and optical constants (n, k) of the samples. It has been determined that samples with high amounts of Mn have lower refractive index values. Absorbance spectra have shown additional band edges along with the one belonging to CdS, for samples with Mn concentrations higher than 50 pct. This has been attributed to a phase separation above this limit. Raman spectroscopy analysis which shows additional Raman peaks belonging to MnS phase also supports these findings. Depending on this phase separation, crystalline structure has been deteriorated. Surface properties of the samples have been investigated by SEM and AFM. Elemental analysis has been performed by EDS. Resistivity measurements performed by a four-probe set-up have shown that samples containing high amount of Mn have lower electrical resistivity values.

     

Model-based reasoning for electron-beam debugging of VLSI circuits

This article deals with prototype validation of VLSI circuits. Circuits are observed using electron-beam probing used in voltage contrast mode, in such a way that grey level images are obtained and processed in order to determine potential values of connexions. These values are compared against reference values, issued from fault-free simulation of the device under test. The list of discrepancies resulting from comparison constitutes input for a fault localization process done using a knowledge-based system. In this article, the reasons for the choice of such an approach are explained, the approach itself is described, as well as its implementation and the obtained results.     

Identity control, activity control: from trust to suspicion

Processes introducing biometric identity control and communicating activity controls through data retention sign, in France and Europe, a reversal of perspective. Taking into account the legislative and regulatory transformations as well as the strategies of government and industry actors, and considering the various means of consent from the general public, we will analyze several levels of this change of paradigm: security objectives centered on intelligence rather than legal investigation; legislative and judicial proceedings oriented towards soft and contract law; intervention of private actors with prerogatives of public power; preventive rather than repressive civil or penal actions, specially through the use of technical means; sometimes inversion of the burden of the proof, requiring proving innocence rather than guilt. This results in the change from a conception of society based on mutual trust into a situation of generalized suspicion.