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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.

The purpose of this paper is to examine whether children’s online play and participation in massively multiplayer online role playing games (MMORPGs) is leading to the development of virtual retail shopping motivations and behaviours. This exploratory study also examines the influence of age-related differences in children’s social and consumer development vs adults and gender on this.

The study was conducted using two focus groups and ten in-depth interviews with 20 French children between the ages of eight and 12 years.

Results show that children’s online play and participation in MMORPG communities is leading to the development of virtual retail shopping motivations and behaviour through the purchase of virtual tools and accessories by all children using virtual in-game money. But these motivations are very gender specific due to the overarching importance of gender-specific motivations for achievement. Boys engage in virtual retail shopping because they need in-game progress and power gains, while girls engage in virtual retail shopping because they need social status enhancement.

Research should be conducted on children in different age groups. All aspects of the process and consequences of children’s participation in online gaming communities should be examined more comprehensively. Quantitative research is required. Results may also vary with country and cultural context.

First, children between eight and 12 years of age are active consumers (influencers and buyers) for all companies. MMORPGs provide the perfect setting for better understanding of children’s motivations and behaviour regarding virtual retail shopping because they provide virtual in-game money for different achievements that children use to engage in such behaviour. Second, MMORPG companies can benefit by taking into account gender differences in children’s motivations and the importance of the games’ social dimensions and interactions when designing the games.

First, the risks of playing computer games for children in terms of playing violent games and leading a virtual life must be considered and studied carefully by public policy officials. Second, public policy officials that look into online gaming should take into account gender differences in children’s motivations and the importance of the games’ social dimensions and interactions when monitoring online games. These are issues that are not only developing children’s abilities as social actors but may well be promoting excessive materialism aided by the formation of online peer groups.

This is the first study on children’s online play and participation in MMORPGs in the consumer context and will help us to understand children’s mind-set and motivations for retail activities in this unique retail setting. The study results show that children’s online play and participation in MMORPGs is leading to the development of virtual retail shopping motivations and behaviour that are very gender specific unlike adults.