Search results

The purpose of the research was to develop a method for the determination of temperature characteristics of thermal diffusivity and specific heat on a single and the same stand, powered from an inverter for induction heating. Determination of the thermal diffusivity has been based on the idea of the pulse method. Searched solutions allowed to reduce inaccuracy of the pulse method when such an unusual source of pulse of energy is used.

Coupled electromagnetic and thermal calculations were carried out to verify proposed methods for estimating thermal properties of an induction heated charge. Presented methods were applied into a real laboratory stand and they were examined experimentally.

Achieved results of calculations allow to estimate thermal properties of the induction heated charge with 2 and 5 per cent of uncertainty, respectively, for heat capacity and thermal diffusivity. It gives possibility to use results as an input for further proceedings connected with estimation of electrical parameters in a more complex system.

Presented methods of estimating thermal properties of the induction heated charge were verified experimentally on a dedicated laboratory stand. It gives a practical possibility to implement previously established assumptions and examine them. This is a significant step toward the construction of an easy-to-use device for a comprehensive determination of material parameters of metals directly in the heat treatment plant.

This study presents a trial of implementation of induction heating as a source of energy in the impulse method for estimation of thermal properties of the material. Additionally, it presents a process of improving results achieved with the flash methods which were presented in previous papers. The method of estimation of specific heat which uses induction heating as the heat source was presented too.

Older adults are at a high risk of falling. The consequences of falls are worse when the person is unable to get up afterward. Thus, an intelligent video monitoring system (IVS) was developed to detect falls and send alerts to a respondent. This study aims to explore the implementation of the IVS at home.

A multiple case study was conducted with four dyads: older adults and informal caregivers. The IVS was implemented for two months at home. Perceptions of the IVS and technical variables were documented. Interviews were thematically analyzed, and technical data were descriptively analyzed.

The rate of false alarms was 0.35 per day. Participants had positive opinions of the IVS and mentioned its ease of use. They also made suggestions for improvement.

This study showed the feasibility of a two-month implementation of this IVS. Its development should be continued and tested with a larger experimental group.

To face the challenges raised by the high incidence of falls among older adults, the intelligent video-monitoring system (IVS), a fall detection system that respects privacy, was developed. Most fall detection systems are tested only in laboratories. The purpose of this paper is to test the IVS in a simulation context (apartment-laboratory), then at home.

This study is a proof of concept including two phases: a simulation study to test the IVS in an apartment-laboratory (29 scenarios of activities including falls); and a 28-day pre-test at home with two young occupants. The IVS’s sensitivity (Se), specificity (Sp), accuracy (A) and error rate (E) in the apartment-laboratory were calculated, and functioning at home was documented in a logbook.

For phase 1, results are: Se =91.67 per cent, Sp =99.02 per cent, A=98.25 per cent, E=1.75. For phase 2, the IVS triggered four false alarms and some technical dysfunctions appeared (e.g. computer screen never turning off) that are easily overcome.

Results show the IVS’s efficacy at automatically detecting falls at home. Potential issues related to future installation in older adults’ homes were identified. This proof of concept led to recommendations about the installation and calibration of a camera-based fall detection system.

This paper highlights the potentialities of a camera-based fall detection system in real-world contexts and supports the use of the IVS to help older adults age in place.

This chapter draws on biographical interviews to analyze identity-based interpretations of inequalities by disabled people in France, as these understandings are formed and transformed over the course of their lives. We combined the material from two different studies to create a corpus of 65 life stories from working-age people with contrasting impairments in terms of type, degree, and onset, as well as various profiles in terms of gender, race, and class. When talking about the inequalities they face, respondents commonly made use of identity labels (gender, class, race, disability), among those available in their micro and macro environments. They usually presented these categories as separate and cumulative, and only a few upper-class disabled women developed reflections in line with an intersectional model. This fragmentation of identity categories translated into the framing of each inequality encountered through a single lens. Respondents mentioned race, class, or gender mainly when evoking topics and contexts that the public debate highlights as problematic, while their references to disability covered a variety of disadvantages. Although the interview situation might have fueled this framing, we also showed that certain earlier socialization processes led people to believe that their disability was the source of the inequalities they encountered. Lastly, we identified three turning points that encourage shifts in the interpretation of inequalities; these are the availability of a new label to qualify one's experience, a competing identity-based interpretation for a mechanism, and access to a different, intersectional model of inequality.

This chapter investigates knowledge and practices relating to the ‘right timing’ in reproductive biomedicine in Switzerland. More precisely, it focuses on the effects of an anticipatory regime (Adams, Murphy, & Clarke, 2009) on women's experiences of age-related infertility. As assisted reproductive technologies (ARTs) promise to intervene in the fixed ‘biological facts’ of fertility decline to render reproduction and the timing of motherhood more flexible, manageable and controllable, this chapter explores the effects of anticipation on women's experiences and negotiations of age-related infertility and ARTs. It sheds light on an anticipatory regime which can be called ‘motherhood as right timing’. It shows how, in this regime, the temporality of the lifecourse is brought back to a biological temporality and how expectations and injunctions towards managing and controlling time contain the possibility of their failure, as they are associated with a multiplication of uncertain, complex and resisting biologies. At the core of the practices and politics of anticipating fertility decline, there is a tension between acting upon and being acted upon time, which are embedded in a moral economy of responsibility and volition in which women are blamed, or blame themselves, for not anticipating what is by definition beyond individual control and anticipation.

This edited collection proposes an interdisciplinary and integrated approach to the study of reproductive technologies (RTs), which reflects the fact that many people use different technologies throughout their lifecourse and resists the disciplinary siloing of research on these technologies. The ever-expanding availability of RTs, the continued roll-out of ‘family planning’ and maternity services across low- and middle-income settings and the rapid development of the fertility industry mean that it is more likely than ever that individuals, especially women and trans* people, will engage with more than one RT at some point in their life. These multiple engagements with RTs will affect users' expectations and uptake, as well as the technologies' availability, commercial success, ethical status and social meanings. We offer this book as part of a wider movement in the study of reproduction and RTs, which takes inspiration from the reproductive justice framework to address forms of exclusion, discrimination and stratification that are perpetuated in the development and application of RTs and the ways in which they are studied and theorised. Here, we introduce the project and outline the structure of the book.