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The purpose of this paper is to evaluate the tool experiences using torque during welding as a means of in-process sensing for tool wear. Metal matrix composites (MMCs) are materials with immense potential for aerospace structural applications. The major barrier to implementation of these materials is manufacturability, specifically joining MMCs to themselves or other materials using fusion welding. Friction stir welding (FSW) is an excellent candidate process for joining MMCs, as it occurs below the melting point of the material, thus precluding the formation of degradative intermetallics’ phases present in fusion welded joints. The limiting factor for use of FSW in this application is wear of the tool. The abrasive particles which give MMCs their enhanced properties progressively erode the tool features that facilitate vertical mixing and consolidation of material during welding, resulting in joints with porosity. While wear can be mitigated by careful selection of process parameters and/or the use of harder tool materials, these approaches have significant complexities and limitations.

This study evaluates using the torque the tool experiences during welding as a means of in-process sensing for tool wear. Process signals were collected during linear FSW of Al 359/SiC/20p and correlated with wear of the tool probe. The results of these experiments demonstrate that there is a correlation between torque and wear, and the torque process signal can potentially be exploited to monitor and control tool wear during welding.

Radial deterioration of the probe during joining of MMCs by FSW corresponds to a decrease in the torque experienced by the tool. Experimentally observed relationship between torque and wear opens the door to the development of in-process sensing, as the decay in the torque signal can be correlated to the amount of volume lost by the probe. The decay function for tool wear in FSW of a particular MMC can be determined experimentally using the methodology presented here. The decay of the torque signal as the tool loses volume presents a potential method for control of the wear process.

This work has near-term commercial applications, as a means of monitoring and controlling wear in process could serve to grow commercial use of MMCs and expand the design space for these materials beyond net or near-net-shape parts.

In a lecture of this type it is not necessary to discuss how the various nutrients in food are determined, but it may not be out of place to emphasise that it is misleading to use general terms, such as a broad statement that one food is more nutritious than another. The value of a food in a diet is dependent upon what actual nutrients it contains, and consideration should also be given to the nutrients supplied by the remainder of the diet normally consumed. A diet which provides all the required calories, ample fat, and good quality protein, mineral matter, etc., would be unsatisfactory if it still lacked other essential nutrients such as vitamins. Similarly, no one can live for long on a diet of high calorific value and rich in vitamins if it lacks protein which supplies the body with a wide range of essential amino acids. It is inadvisable to think only in terms of well‐known foodstuffs and simply to say, for example, that milk is very nutritious. Milk is only the excellent food that it is because in general it provides a wide range of essential nutrients such as fat, proteins which supply many amino acids, vitamins such as riboflavin, and useful minerals such as calcium, etc. It is advisable to think in terms of the actual nutrients rather than in terms of the foodstuff itself. Table 1 shows that bread provides a variety of important nutrients, i.e., substances which are essential to the diet if the body is to remain healthy and able to fulfil its normal functions.

The purpose of this study is to present a comprehensive review of the fundamental concepts and terminologies pertaining to different types of aluminium metal matrix composites, their joining techniques and challenges, friction stir welding (FSW) process, post-welding characterizations and basic control theory of FSW, followed by the discussions on the research reports in these areas.

Joining of aluminium metal matrix composites (Al-MMC) poses many challenges. These materials have their demanding applications in versatile domains, and hence it is essential to understand their weldability and material characteristics. FSW is a feasible choice for joining of Al-MMC over the fusion welding because of the formation of narrow heat affected zone and minimizing the formation of intermetallic compounds at weld interface. The goal in FSW is to generate enough thermal energy by friction between the workpiece and rotating tool. Heat energy is generated by mechanical interaction because of the difference in velocity between the workpiece and rotating tool. In the present work, a detailed survey is done on the above topics and an organised conceptual context is presented. A complete discussion on significance of FSW process parameters, control schemes, parameter optimization and weld quality monitoring are presented, along with the analysis on relation between the interdependent parameters.

Results from the study present the research gaps in the FSW studies for joining of the aluminium-based metal matrix composites, and they highlight further scope of studies pertaining to this domain.

It is observed that the survey done on FSW of Al-MMCs and their control theory give an insight into the fundamental concepts pertaining to this research area to enhance interdisciplinary technology exploration.

One of the common law duties owed by the employer is his duty to take reasonable care for the safety of his employee. This common law duty is an implied term in the contract of employment and is therefore contractual in nature. Because of the difficulties which may arise in bringing an action in contract for breach of the employer's duty of care, the employee who has sustained injuries during the course of his employment (although he may sue either in contract of tort will normally bring a tort action.

A focus on how visual cultures in domestic spaces influence older migrants' identification with the homeland has been noted in previous research,¹ yet migrant youth have not typically been the sole subjects of investigation in this regard. This chapter seeks to fill this gap by offering insight into the practices of young Indian women in domestic spaces and how these practices influence their sense of belonging to India. This chapter highlights the practices of young Indian women living in Brisbane, Australia, through an exploration into how the young women recreate their histories and cultural attachments in domestic spaces. The research presented in this chapter illustrates the processes of emotional attachment for young migrants and how these processes demonstrate new ways of practising diaspora, including the use of the internet to learn about their cultural histories. With the use of PhotoVoice, where photographs were retrieved from mobile phones and the internet, the participants discussed their everyday lives relating to their emotional attachments to material objects in domestic spaces and the connection to their identities. This chapter's main argument is to highlight the need for researchers to avoid the tendency to place young migrants into the same diasporic categories as their parents and to recognise the diverse ways in which young migrants actively shape their own cultural attachments.

The purpose of this article is to investigate why artisanal cheesemakers choose to embrace or reject plant-based cheeses (PBC) through a case study conducted in Tasmania, Australia.

Drawing on ethnographic data gathered from artisanal cheesemakers from Tasmania, Australia, this article gives insights into artisanal cheese producers’ perspectives and views on the growing PBC industry. The research is based on qualitative, empirical research conducted in Tasmania between mid-2022 and early 2023 that included literature review, site visits and semi-structured interviews with artisanal cheesemakers.

This article reveals that the reasons given by cheesemakers for embracing or rejecting PBC depend on whether they take a more essentialist or interpretive position on what cheese is. This distinction appears in three key areas: producer definitions of cheese, producer opinions of the form and function of PBC and producer views of PBC in terms of the “art and science” of cheesemaking.

Although there is a growing body of literature analysing the science of plant-based foods, motivations to produce them and consumer responses to these products, broader perspectives of food producers like artisanal cheesemakers that use “traditional” methods, have received less attention. By including the perspectives of cheesemakers this article provides qualitative insights into how producers navigate the cultural and political arenas of food and deal with change in industries that emphasise the importance of tradition.

Following research into the application of Electronic Monitoring (EM), Criminal Justice Order (2016) no. 954 was published, which introduced EM for offenders leaving custody in England and Wales (Ministry of Justice, 2016). EM was later extended to include those subjected to release on temporary licence (ROTL). The purpose of this study is to be the first, to the best of the authors’ knowledge, to evaluate a pilot project using EM during the ROTL process. The outcome allowed for recommendations to be made regarding the continued use of EM within the open prison estate.

This is a qualitative research project involving semi-structured interviews with staff and residents. Transcripts were analysed using thematic analysis which resulted in exploration of 4 themes and 11 sub-themes and recommendations for future research/practice.

Results demonstrated that both staff and residents evaluated the use of EM as helpful with regard to evidencing compliance with ROTL conditions. In addition, staff also found it helpful for providing additional reassurance to victims and providing evidence for ROTL breaches.

To the best of the authors’ knowledge, this was the first qualitative evaluation of EM relating to the ROTL process. The evaluation improves understanding of the value of EM for policymakers and the Ministry of Justice, especially in terms of the ROTL process. The recommendations made in this paper evidence the value of EM use in the future.

This evaluation supports continued use of EM and its integration into policy and procedures for residents subject to temporary licence. This paper concluded that consistent and reliable use of EM may contribute to victim reassurance and reduce recidivism of residents during ROTL, subsequently increasing the public’s perception of safety.

The paper provides an overview of research published in the innovation and operations management (IOM) literature on 15 methods for cost management in new product development, and it provides a comparison to an earlier review of the management accounting (MA) literature (Wouters & Morales, 2014).

This structured literature search covers papers published in 23 journals in IOM in the period 1990–2014.

The search yielded a sample of 208 unique papers with 275 results (one paper could refer to multiple cost management methods). The top 3 methods are modular design, component commonality, and product platforms, with 115 results (42%) together. In the MA literature, these three methods accounted for 29%, but target costing was the most researched cost management method by far (26%). Simulation is the most frequently used research method in the IOM literature, whereas this was averagely used in the MA literature; qualitative studies were the most frequently used research method in the MA literature, whereas this was averagely used in the IOM literature. We found a lot of papers presenting practical approaches or decision models as a further development of a particular cost management method, which is a clear difference from the MA literature.

This review focused on the same cost management methods, and future research could also consider other cost management methods which are likely to be more important in the IOM literature compared to the MA literature. Future research could also investigate innovative cost management practices in more detail through longitudinal case studies.

This review of research on methods for cost management published outside the MA literature provides an overview for MA researchers. It highlights key differences between both literatures in their research of the same cost management methods.

During the year the work of the Public Health Supervision Section continued upon the usual lines. The milk sampling and inspections in the Brisbane Metropolitan area were carried out by one inspector and an assistant. Two thousand one hundred and twenty‐nine samples of milk were obtained, and fifty‐six prosecutions were instituted for offences against the Health Acts, Milksellers' Regulations, and Food and Drug Regulations. Fines imposed amounted to £394 6s. 0d. and costs £66 16s. 6d. Of these prosecutions, twenty‐five were in respect of the sale of adulterated milk, two for milk deficient in fat, and twenty‐nine were for the selling of milk either containing excess bacteria, or under improper conditions, or without the necessary license. Samples of pasteurised milk were found, with few exceptions, to be satisfactory. During the year a further milk pasteurisation plant commenced to operate in Brisbane, bringing the number of such factories in the Metropolis to five. Up‐to‐date machinery for washing bottles has been installed in these factories, and fewer complaints of this milk being sold in dirty bottles were received.

This paper aims to focus on the assessment of a domestic property's energy performance status by a domestic energy assessor (DEA), to ascertain the possible underlying reasons for variability in the results of Energy Performance Certificates (EPCs). By variability, the authors mean discrepancies in assessment between different DEAs on similar properties. This is important because the uses for the EPC have been extended beyond their original function as an asset rating system, to include themes encompassing building policy decisions, building performance and the distribution of incentives and grants. Consequently, inaccuracies in EPC reporting will have a greater impact than may have been the case at the outset.

A case study approach involving the conducting of semi-structured interviews with 20 practicing DEAs was carried out, with transcribed recordings of the interview material subjected to thematic analysis. This formed part of a wider mixed methods study.

The results identify a wide range of underlying reasons for variability driven by issues in both practice and process, including conflicts of interests, the EPC auditing process, the default inputting of missing data by RdSAP where information may not be available/discoverable by the DEA, the quality and perception of EPCs and DEA training and experience.

The sample size of 20 is by definition limiting, and it is possible that different results would have been obtained from a different sample. Although thematic saturation from the analysis of the responses on the key question of whether EPCs are considered variable does mitigate this. The respondents were all in possession of five years or more experience and of carrying out EPCs for different purposes. Less experienced DEAs may inevitably have responded to questions differently. The thematic analysis gives the researcher control over the presentation of the results, and it is noted that this creates a potential for bias. The researcher is immersed in the world of construction and property, with regular contact with DEAs and EPCs, which may influence the perspective of the results.

The research identifies risks to the accuracy of EPCs. To this end, and with the specific research findings in mind, this research may be of interest to construction professionals with respect to EPC practice and procurement, to the Accrediting Bodies who audit EPCs, to the creators of RdSAP with respect to automated EPC inputs, to academics either at face value or for use in further research and to policy makers who may wish to consider RdSAP data in future with qualifiers or margins of error, or may even look to review the EPC as the instrument of choice for some applications.

There is much literature analysing the shortcomings and nuances of RdSAP results, and the software model that generates the EPC, but only very limited literature extending the discussion about RdSAP to its operator: the DEA. At the time of writing, there is no literature focusing directly on the DEA and its role within the EPC production process. Their role is more important now, given the expanding use of EPCs, and increased reliance on EPC data.