Učinak parametara asimetričnog valjanja platine na promjene ukupnog pritiska valjka

This work shows the results of theoretical analysis of asymmetric rolling process of plates in the finishing mill of plate rolling. Its aim was to determine the influence of asymmetry velocity of working rolls on decrease of unit pressure of metal on the rolls. The lower value of the unit pressure will reduce the elastic deflection of the finishing stand and improve the cross-section shape of plate. Three-dimensional simulation of asymmetric hot rolling of S355J2G3 steel plates was done with the aid of FORGE 2008® software. The tensor polynomial interpolation was used for comparing the values of the unit pressure obtaining from symmetric and asymmetric rolling.Rad daje rezultate teorijske analize asimetričnog valjanja platine u završnom stanu. Cilj je odrediti utjecaj asimetrične brzine radnih valjaka na umanjenje jediničnog pritiska metala na valjke. Niža vrijednost jediničnog pritiska smanjiti će elastičnu deformaciju završnog stana. i poboljšati oblik presjeka platine. Trodimenzionalna simulacija asimetričnog vrućeg valjanja S355J2G3 čeličnih platina izvedena je pomoću FORGE 2008® softvera. Polinomni tenzor interpolacije rabljen je za usporedbu vrijednosti jediničnog pritiska dobijenog sa simetričnim I nesimetričnim valjanjem

Expressive Power, Satisfiability and Equivalence of Circuits over Nilpotent Algebras

Satisfiability of Boolean circuits is NP-complete in general but becomes polynomial time when restricted for example either to monotone gates or linear gates. We go outside Boolean realm and consider circuits built of any fixed set of gates on an arbitrary large finite domain. From the complexity point of view this is connected with solving equations over finite algebras. This in turn is one of the oldest and well-known mathematical problems which for centuries was the driving force of research in algebra. Let us only mention Galois theory, Gaussian elimination or Diophantine Equations. The last problem has been shown to be undecidable, however in finite realms such problems are obviously decidable in nondeterministic polynomial time. A project of characterizing finite algebras m A with polynomial time algorithms deciding satisfiability of circuits over m A has been undertaken in [Pawel M. Idziak and Jacek Krzaczkowski, 2018]. Unfortunately that paper leaves a gap for nilpotent but not supernilpotent algebras. In this paper we discuss possible attacks on filling this gap

Retained EU Law and Implications for Pregnant Workers: A Therapeutic Jurisprudence Perspective

Using the lenses and language of therapeutic jurisprudence, this paper will argue that the rights of pregnant workers are vulnerable in a post-Brexit climate. Whilst the sunset clause from the Retained EU Law Bill, which would have caused all retained EU law to automatically expire at the end of 2023 unless expressly stated otherwise by Ministers, was lifted, the original drafts of the Bill made clear the government’s lack of respect for and interest in protecting workers’ rights (amongst others). Furthermore, despite the abandonment of the sunset, the now legislated Retained EU Law (Revocation and Reform) Act 2023, aiming to deal with all laws that were once of European origin, still gives Ministers wide powers with limited input from Parliament to change EU derived legislation and replace with UK provision. Using an example from employment law, specifically, pregnant workers, this paper will show that the Act is a therapeutic jurisprudence unfriendly bottle as it has the potential to violate positive physical, social, and psychological outcomes. Recognising that these laws are currently vulnerable, we urge the government to keep intact (and potentially enhance) the laws protecting pregnant workers

Recovery and Restorative Justice: Systems for Generating Social Justice

Theories underpinning restorative justice (RJ) overlap significantly with work around addiction recovery, in particular, the concept of “recovery capital”. Whilst both movements are relatively new, RJ has a longer-standing history and a greater application in practice settings, yet both are inherently 'relational theories' and should be evaluated as such. There is great value in a comparative review of the concepts, assessing how the theories and practices align, as well as how each framework may inform the other. Granfield & Cloud (2001) have shown that recovery is enhanced by establishing previously non-existent social networks through building “social capital” to access support networks and resources in the community. Similarly, Zehr & Gohar (2002:23) posit that the third pillar of any legitimate RJ practice is a social process inclusive of dialogue and engagement with those who have a “legitimate interest or stake in the offense and its resolution”. Elsewhere, Best et al. (2015) have argued that a key component of recovery theory is “community capital” and the importance of community attitudes/resources as a predictor of recovery longevity, a model that draws on Braithwaite's reintegrative shaming theory from the RJ discourse (Braithwaite, 1989). This chapter aims to advance thinking and the Volume’s objectives of challenging the RJ field by suggesting that the common implication is that the effective implementation of these principles may facilitate the generation of a virtuous cycle enhancing the wellbeing of disputants and their communities and providing sustainable pathways to effective reintegration by building capital in communities and creating a 'therapeutic landscape' for restoration and rehabilitation

Seeking the Goal in the Process, the Process for the Goal: Organizational Learning in a Public Sector Change Project

This paper describes how a combination of process modelling and goal modelling techniques has been used to facilitate organizational learning. The case study comes from the public sector in the UK. The modelling techniques have helped users to rationalise about the existing processes and then to design how they would like the process to work. The paper describes how the users have been able to confront the complex issues involved. The experience suggests that the combination of the modelling techniques is important to the learning experience of the users involved

PCR Cloning Combined With DNA Barcoding Enables Partial Identification of Fish Species in a Mixed-Species Product

DNA barcoding is a valuable tool for regulatory identification of fish species; however, it does not perform well when multiple species are present within the same food product. Therefore, the objective of this study was to examine the use of PCR cloning to identify fish in a mixed-species product that cannot be identified with standard DNA barcoding. A total of 15 fish ball mixtures were prepared with known amounts of Nile tilapia (Oreochromis niloticus), Pacific cod (Gadus macrocephalus), and walleye pollock (Gadus chalcogrammus). Three subsamples from each fish ball underwent DNA extraction, full DNA barcoding (655 bp), and mini-barcoding (226 bp) of the cytochrome c oxidase subunit 1 (CO1) gene. Subsamples that did not pass sequencing according to regulatory standards were further analyzed with PCR cloning. All fish balls made of just one species tested positive for that species (i.e., tilapia, cod, or pollock) with both full and mini-barcoding. However, only tilapia was detected in fish balls containing multiple species when tested with standard barcoding techniques, reflecting an inaccurate representation of the fish mixture and suggesting species bias. PCR cloning allowed for identification of Pacific cod in 86% of the mixed-species fish balls tested with fullbarcode cloning and 100% of the mixed-species fish ball tested with mini-barcode cloning. However, PCR cloning did not enable the identification of walleye pollock. Standard full barcoding produced more high quality sequences compared to minibarcoding yet failed to accurately detect all species present in the tested fish mixtures. Overall, the results of this study show that PCR cloning may be an effective method to identify certain fish in mixed-species products when standard DNA barcoding fails. However, additional research is needed to overcome the species bias observed in this study