Transmission conditions with constraints in finite element domain decomposition methods for flow problems

This work presents a conservative scheme for iteration‐by‐subdomain domain decomposition (DD) strategies applied to the finite element solution of flow problems. The DD algorithm is based on the iterative update of the boundary conditions on the interfaces between the subregions, the so‐called transmission conditions. The transmission conditions involve the essential and natural boundary conditions of the weak form of the problem, and should ensure strong continuity of the velocity and weak continuity of the traction. As a first approach, the transmission conditions are interpolated using the classical Lagrange interpolation functions. Conservation problems might arise when two adjacent subdomains have a sensibly different mesh spacing. In order to conserve any desired quantity of interest, an interface constraining is introduced: continuity of the transmission conditions are constrained under a scalar conservation equation. An example of mass conservation illustrates the algorithm.&nbsp

A finite element model for the simulation of lost foam casting

In this paper, we present a numerical model to simulate lost foam casting processes. We first introduce this particular casting in order to catch the different physical processes in play during a casting. We also briefly comment on the possible physical and numerical models to envisage the numerical simulation. Next we present a model which aims at solving “part of” the complexities of the casting, together with a simple energy budget that enables to obtain an equation for the velocity of the metal front advance. Once the physical model is established we develop a finite element method to solve the governing equations. The numerical and physical methodologies are then validated through the solution of a two and a three-dimensional example. Finally, we briefly discuss some possible improvements of the numerical model in order to catch more physical phenomena

Representations of Disability in Qur’anic Narratives

In some Muslim cultures disabled people are ridiculed, abused and face social injustice. Whilst there are texts which examine the representations of disabled people in a range of legal, social, religious, and cultural Muslim documents, there is a pau-city of literature which analyzes the representations of disabled people in the Qur’an. Applying critical discourse analysis, this study interprets two well-known Qur’anic stories. Through the application of thematic analysis, the phrases, clauses and sentences of these two stories are analyzed in order to present patterns of meaning which challenge ableism from a scriptural Islamic perspective

Educational Provision for Newly Arrived Unaccompanied Sanctuary Seekers aged 15-16

Local Authorities in England are rarely able to find a school place for newly arrived unaccompanied sanctuary seekers when the young person arrives in their locality aged 15-16. Criticisms regarding this exclusionary practice are plentiful; that said, it has been argued the dominance of debate regarding access to mainstream education for pupils aged 15-16 obfuscates critical analysis of the educational needs of this group. Focussed on a bespoke Local Authority educational offer for fewer than twenty newly arrived unaccompanied sanctuary seekers aged 15-16, this paper analyses the essence of this offer in relation to social inclusion. Analysed in relation to the category, structure and level/function of the young people’s social inclusion, this paper draws on interview and focus group data to shine a light on the efficacious elements of the offer which point to ways forward for mainstream schools

A Geometrical domain decomposition method in computational fluid dynamics

We present a detailed description of the implementation of the DD methods in the numerical framework of finite elements. We present interpolation techniques for Dirichlet and Neumann data as well as conservation algorithms

Action Research for ISEND: Guidance Resource and Templates Resource

Overview In 2022 the National Association for Special Educational Needs (nasen) launched the new ‘Universal SEND Services’ programme. Funded by the Department for Education (DfE) and running from 2022 until 2025, this important work includes various elements including this Action Research for ISEND project. What is Action Research for ISEND Action Research for inclusion and special educational needs and disabilities (ISEND) provides a methodology for schools/ FE colleges to develop a small-scale bespoke research project that clearly addresses an ISEND area for development. Action Research is generally understood to be a way for practitioners to engage in a ‘plan-act/observe-reflect’ research cycle. In this project, Action Research is set up as a two-stage cycle that also incorporates a study phase (i.e., a time for staff to engage with the freely available research evidence). For longer projects stage-two of the cycle can be repeated. To support with the process of thinking through the ethical implications of small-scale practitioner research, an ethics checklist and amendable proformas are provided in this guidance resource. How to use this Guidance Resource This guidance resource has been written for those taking part in the DfE funded, nasen, Action Research for ISEND project. It is also designed to be a freely available resource for any school/FE college who are interested in setting up their own Action Research for ISEND project. If you have any questions about the project, or Action Research for ISEND please feel free to contact the project lead ([email protected]). To develop your own Action Research for ISEND project it is recommended you follow the Action Research steps as set out in Table 1 (page 6) of this guidance resource. The overview provided in Table 1 is then expanded and additional detail provided on pages 7-15 of this guidance resource. The Appendices are there to support you through some of the specific elements of Action Research; for example, like researching your topic of interest. For your convenience, some of the Appendices are also made available as Word documents (see the Action Research for ISEND: Templates Resource)

Numerical simulation of gear pumps

We present in this paper a complete numerical strategy for the study of two gear pumps. This work includes all the steps to follow from the treatment of the CAD geometry until the analysis of the simulation results. In particular, we treat the CAD simplification, the meshing of the geometry, the numerical strategy and, finally, the analysis of simulation results

The timing of the formation and usage of replicase clusters in S-phase nuclei of human diploid fibroblasts

The sites of nascent DNA synthesis were compared with the distribution of the proliferating cell nuclear antigen (PCNA) in S-phase nuclei of human diploid fibroblasts (HDF) by two in vitro techniques. Firstly, proliferating fibroblasts growing in culture that had been synchronised at S-phase were microinjected with the thymidine analogue biotin-11-dUTP. The sites of incorporation of biotin into injected cells were compared with the distribution of PCNA by indirect immunofluorescence microscopy and laser scanning confocal microscopy (LSCM). In common with other studies, a progression of patterns for both biotin incorporation and PCNA localisation was observed. However, we did not always observe coincidence in these patterns, the pattern of biotin incorporation often resembling the expected, preceding distribution of PCNA. In nuclei in which the pattern of biotin incorporation appeared to be identical to the distribution of PCNA, LSCM revealed that not all of the sites of PCNA immunofluorescence were incorporating biotin at the same time. Secondly, nuclei which had been isolated from quiescent cultures of HDF were innoculated into cell-free extracts of Xenopus eggs which support DNA replication in vitro. Following innoculation into these extracts DNA replication was initiated in each nucleus. The sites of DNA synthesis were detected by biotin-11-dUTP incorporation and compared with the distribution of PCNA by indirect immunofluorescence. Only a single pattern of biotin incorporation and PCNA distribution was observed. PCNA accumulated at multiple discrete spots some 15min before any biotin incorporation was observed. When biotin incorporation did occur, LSCM revealed almost complete coincidence between the sites of DNA synthesis and the sites at which PCNA was localised.Brunel Open Access Publishing Fun

Quick Read and Easy Read Summary - End of Three Year Evaluation of the Access and Inclusion Model

This is a quick-read/easy read summary of the evaluation for people who have additional needs, such as a learning disability, or who want to read a quick summary of the findings. About the research that this summary is based on: The Department for Children, Equality, Disability, Integration, and Youth (DCEDIY) commissioned this evaluation. Its purpose was to investigate the implementation and impact of the Access and Inclusion Model (AIM), from the perspective of multiple stakeholders. The findings of the evaluation would inform the continuous improvement of AIM within the contemporaneous policy context. The evaluation was led by the University of Derby (UoD) consortium and took place between December 2020 and December 2021. Substantive evidence about the implementation and impact of AIM was gathered in this evaluation. Evidence is drawn from the participation of over 2,000 stakeholders and the analysis of over 140 documents. The sample for the study has comprised: •50 sources of documentary evidence (policy documents, agency reports, statistics, websites) •94 sources from the research and academic literature •1,157 parent/carers in an online survey •732 providers in an online survey •79 stakeholders (AIM delivery partners and agencies, disability sector, parent/carers, and ELC practitioners) •14 children who are supported by AIM •14 pre-school settings that are engaged with AI

Projection and Fukushima's gap based methods for the asymmetric traffic assignment problem

Report de recerca DR 2012/2 The research reported in this paper has been funded by projects SIMETRIA (Ref. P 63/08, 27.11.2008), of the Spanish R+D National Programs and project TRA2008-06782-C02-02.Preprin