scholarly journals From Brown-Field to Future Industrial Networks, a Case Study

2021 ◽  
Vol 11 (7) ◽  
pp. 3231
Author(s):  
Mehrzad Lavassani ◽  
Johan Åkerberg ◽  
Mats Björkman

The network infrastructures in the future industrial networks need to accommodate, manage and guarantee performance to meet the converged Internet technology (IT) and operational technology (OT) traffics requirements. The pace of IT–OT networks development has been slow despite their considered benefits in optimizing the performance and enhancing information flows. The hindering factors vary from general challenges in performance management of the diverse traffic for green-field configuration to lack of outlines for evolving from brown-fields to the converged network. Focusing on the brown-field, this study provides additional insight into a brown-field characteristic to set a baseline that enables the subsequent step development towards the future’s expected converged networks. The case study highlights differences between real-world network behavior and the common assumptions for analyzing the network traffic covered in the literature. Considering the unsatisfactory performance of the existing methods for characterization of brown-field traffic, a performance and dynamics mixture measurement is proposed. The proposed method takes both IT and OT traffic into consideration and reduces the complexity, and consequently improves the flexibility, of performance and configuration management of the brown-field.

2005 ◽  
Vol 37 (5) ◽  
pp. 895-907 ◽  
Author(s):  
Ari Goelman

My research explores the question: how can theorists better understand the ways in which planning technologies are used by municipal planners? In the case-study municipality, a recently introduced web-GIS technology had little demonstrable success in attaining two of its stated goals: enabling increased public access to municipal geographic information and encouraging planners to produce their own maps. My research links these outcomes not only to the technologies themselves, but to organizational structure and human agency. Planners and planning theorists can gain additional insight into the impact of planning technologies through closer attention to the process through which planners come to use information technologies and the way this process both alters and is constrained by existing organizational constraints, including previously adopted technologies.


2015 ◽  
Vol 48 (6) ◽  
pp. 1734-1744 ◽  
Author(s):  
Stanislav Stoupin ◽  
Zunping Liu ◽  
Steve M. Heald ◽  
Dale Brewe ◽  
Mati Meron

Imaging of the Bragg-reflected X-ray beam is proposed and validated as anin situmethod for characterization of the performance of double-crystal monochromators under the heat load of intense synchrotron radiation. A sequence of images is collected at different angular positions on the reflectivity curve of the second crystal and analyzed. The method provides rapid evaluation of the wavefront of the exit beam, which relates to local misorientation of the crystal planes along the beam footprint on the thermally distorted first crystal. The measured misorientation can be directly compared with the results of finite element analysis. The imaging method offers an additional insight into the local intrinsic crystal quality over the footprint of the incident X-ray beam.


Author(s):  
Nicholas K. Hurlburt ◽  
Jasper Guan ◽  
Hoonsan Ong ◽  
Hai Yu ◽  
Xi Chen ◽  
...  

Bacterial nonhydrolyzing UDP-N-acetylglucosamine 2-epimerases catalyze the reversible interconversion of UDP-N-acetylglucosamine (UDP-GlcNAc) and UDP-N-acetylmannosamine (UDP-ManNAc). UDP-ManNAc is an important intermediate in the biosynthesis of certain cell-surface polysaccharides, including those in some pathogenic bacteria, such as Neisseria meningitidis and Streptococcus pneumoniae. Many of these epimerases are allosterically regulated by UDP-GlcNAc, which binds adjacent to the active site and is required to initiate UDP-ManNAc epimerization. Here, two crystal structures of UDP-N-acetylglucosamine 2-epimerase from Neisseria meningitidis serogroup A (NmSacA) are presented. One crystal structure is of the substrate-free enzyme, while the other structure contains UDP-GlcNAc substrate bound to the active site. Both structures form dimers as seen in similar epimerases, and substrate binding to the active site induces a large conformational change in which two Rossmann-like domains clamp down on the substrate. Unlike other epimerases, NmSacA does not require UDP-GlcNAc to instigate the epimerization of UDP-ManNAc, although UDP-GlcNAc was found to enhance the rate of epimerization. In spite of the conservation of residues involved in binding the allosteric UDP-GlcNAc observed in similar UDP-GlcNAc 2-epimerases, the structures presented here do not contain UDP-GlcNAc bound in the allosteric site. These structural results provide additional insight into the mechanism and regulation of this critical enzyme and improve the structural understanding of the ability of NmSacA to epimerize modified substrates.


2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Henry Jones

Abstract Little research has yet explored the impact of (re)translation on narrative characterization, that is, on the process through which the various actors depicted in a narrative are attributed particular traits and qualities. Moreover, the few studies that have been published on this topic are either rather more anecdotal than systematic, or their focus is primarily on the losses in character information that inevitably occur when a narrative is retold for a new audience in a new linguistic context. They do not explore how the translator’s own background knowledge and ideological beliefs might affect the characterization process for readers of their target-language text. Consequently, this paper seeks to make two contributions to the field: first, it presents a corpus-based methodology developed as part of the Genealogies of Knowledge project for the comparative analysis of characterization patterns in multiple retranslations of a single source text. Such an approach is valuable, it is argued, because it can enhance our ability to engage in a more systematic manner with the accumulation of characterization cues spread throughout a narrative. Second, the paper seeks to move discussions of the effects of translation on narrative characterization away from a paradigm of loss, deficiency and failure, promoting instead a perspective which embraces the productive role translators often play in reconfiguring the countless narratives through which we come to know, imagine and make sense of the past, our present and imagined futures. The potential of this methodology and theoretical standpoint is illustrated through a case study exploring changes in the characterization of ‘the common people’ in two English-language versions of classical Greek historian Thucydides’ History of the Peloponnesian War, the first produced by Samuel Bloomfield in 1829 and the second by Steven Lattimore in 1998. Particular attention is paid to the referring expressions used by each translator—such as the multitude vs. the common people—as well as the specific attributes assigned to this narrative actor. In this way, the study attempts to gain deeper insight into the ways in which these translations reflect important shifts in attitudes within key political debates concerning the benefits and dangers of democracy.


Author(s):  
Kevork Oskanian ◽  
Derek Averre

Kevork Oskanian and Derek Averre explore the relationship between security and democracy in the promotion of the EU’s norms and interests. Their case study of the countries of the South Caucasus – Armenia, Azerbaijan and Georgia - provides a useful additional insight into neighbourhood countries which do manifest a European perspective but with different degrees of intensity. In the context of discussing the relevance of Democratic Peace Theory and the EU’s perception that conflict resolution and security on its borders are best resolved through democratic governance, their chapter raises the question as to whether conflict is actually more likely when democratisation is incomplete and when there are variations between neighbouring countries between authoritarian systems and near-democracies. This seems to apply to conflicts in the South Caucasus, including the Russo-Georgia war, and indicates a clear limit to EU-isation as a means of ensuring stability and security on the EU’s borders.


2020 ◽  
Vol 41 (1) ◽  
pp. 73-78
Author(s):  
Veronika Vaclavik ◽  
Francine Naderi ◽  
André Schaller ◽  
Pascal Escher

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1538
Author(s):  
Valentina Fanelli ◽  
Vincenzo Roseti ◽  
Michele Antonio Savoia ◽  
Monica Marilena Miazzi ◽  
Pasquale Venerito ◽  
...  

Calabria is a region located in Southern Italy and it is characterized by a long tradition of viticulture practices and favorable pedoclimatic conditions for grapevine cultivation. Nevertheless, less than 2% of cultivated land is dedicated to grapevine growing in Calabria. The characterization of local grapevine accessions is crucial to valorize the local and peculiar Italian products and boost the Calabrian winemaking sector. With this purpose, we performed a deep characterization of two widespread Calabrian grapevine varieties—Magliocco Dolce and Brettio Nero, of which very little is known. In particular, a genetic and morphological analysis, a berry physico-chemical and polyphenolic compositions assessment, and oenological evaluation of monovarietal wines were carried out. Our results allowed us to demonstrate that Magliocco Dolce and Brettio Nero are unique and distinct varieties with peculiar morphological and chemical characteristics and show the suitability of these two varieties in high-quality wine production. Moreover, the obtained molecular profiles will be useful for authentication and traceability purposes.


Author(s):  
Ekaterina V. Kryukova ◽  

The model of literary palimpsest originally put forward by G. Genette is of essential value now, giving an insight into the mechanism of realizing transtextual meanings. Figurative use of the notion of “palimpsest” as a hierarchy of texts shining through each other, be it different versions of the same text or texts intersecting in the common narrative space, presents a new perspective on the modern literary process, when under the influence of mass culture a literary text may consist of not only other literary texts but also those of the cinema or even music. Although the conception of palimpsest has been further developed and refined by different scholars, some of its aspects, e.g. the receptive one, have not yet been studied in detail. Indeed, the receptive aspect of palimpsest is worthy of special attention as the literary process now is inseparable from the recognition of the communicative nature of art, therefore without a reader the literary work’s meaning cannot be actualized. Making a case study of the comic fantasy series by the modern English writer Terry Pratchett, the article considers the way palimpsest functions from the receptive point of view and sums up the effects it achieves.


Lubricants ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 70 ◽  
Author(s):  
Michael Schertzer ◽  
Patricia Iglesias

This work presents a meta-analysis that compares the suitability of various parameters used to characterize wettability in tribological systems. It also examines the relationship between wettability and the friction factor for multiple lubricant-surface pairings. The characterization of wetting behavior was similar when using the contact angle between a lubricant and surface and various dimensional and dimensionless formulations of a spreading parameter. It was possible to identify hydrodynamic, boundary, and mixed lubrication regimes by combining a dimensionless wettability parameter with the specific film thickness for a variety of neat ionic liquids and magnetorheological fluids in contact with metallic, thermoplastic, and elastic surfaces. This characterization was possible using multiple dimensionless wettability parameters, but those that can be fully determined using only the contact angle may be preferred by experimentalists. The use of dimensional and dimensionless wettability parameters that included polar and disperse components of surface tension and surface energy did not appear to provide additional insight into the wettability or frictional performance for the tribological system examined here.


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