Sustainable thermal technologies and care homes: Productive alignment or risky investment?

The use of more sustainable thermal technologies is a policy imperative across the UK building stock. However, not all building uses provide the same opportunities for technology uptake as others. Care homes for older people have characteristics which in technical and economic terms suggest that they might be particularly appropriate for the implementation of more sustainable thermal technologies. They have comparatively high demands for space heating and hot water often sustained on a 24/7 basis. However there are many considerations, both generic and contextual, that will typically play into processes of technology uptake. Through qualitative research in six case study homes, focused on management and staff perspectives and experiences, we explore the degree to which there might be a productive alignment between care home operation and the use of sustainable thermal technologies. Two key themes emerge focused on business considerations and the importance of avoiding risk and damage to reputation; and the ways in which different thermal technologies are relevant to and can potentially impact on care practices. We conclude that despite potential benefits the sector could remain rather resistant to sustainability innovations. We suggest therefore areas in which productive action and further research could be undertaken.     

Iodine in daily diet samples from some old people's homes in Slovenia

 In July 1992 we collected samples of daily meals in 51 old people's homes in the Republic of Slovenia to establish their iodine contents. The average content found was 79.6±31.9 μg of iodine in the daily meal, or 0.212±0.083 mg iodine kg^–1 dry substance. In only 15 cases of 51 analysed samples, did the quantity of iodine exceed two thirds of the recommended daily intake of iodine, i.e. more than 100 μg. Received: 14 April 1998     

Microbial volatile organic compounds in the air of moldy and mold-free indoor environments

A single-blinded study was performed to analyze whether indoor environments with and without mold infestation differ significantly in microbial volatile organic compounds (MVOC) concentrations. Air sampling for MVOC was performed in 40 dwellings with evident mold damage and in 44 dwellings, where mold damage was excluded after a thorough investigation. The characteristics of the dwellings, climatic parameters, airborne particles and air exchange rates (AER) were recorded. The parameters mold status, characteristics of the interiors and measured climatic parameters were included in the multiple regression model. The results show no significant association between most of the analyzed MVOC and the mold status. Only the compounds 2-methyl-1-butanol and 1-octen-3-ol indicated a statistically significant, but weak association with the mold status. However, the concentrations of the so-called MVOC were mainly influenced by other indoor factors. 2-Methylfuran and 3-methylfuran, often used as main indicators for mold damage, had a highly significant correlation with the smoking status. These compounds were also significantly correlated with the humidity and the AER. The compounds 3-methyl-1-butanol, 2-hexanone, 3-heptanone and dimethyl disulfide were weakly correlated with the recorded parameters, the humidity being the strongest influencing factor. Only 2-methyl-1-butanol and 1-octen-3-ol showed a statistically significant association with the mold status; however, only a small portion (10% in this case) of the total variability could be explained by the predictor mold status; they do not qualify as indicator compounds, because such minor correlations lead to a too excessive part of incorrect classifications, meaning that the diagnostic sensitivity and specificity of these compounds are too low. PRACTICAL IMPLICATIONS: The assumption that mold infestations might be detected by microbial VOC emissions must be considered with great reservation. The major part of the total variability of the measured MVOC concentrations originates from not known influencing factors and/or from factors not directly associated with the mold status of the dwellings (confounders). More specific and sensitive markers for the assessment of the mold status should be found, if the screening for mold infestations should be performed by volatile organic compounds.     

Women’s mobility,neighbourhood socio-ecologies and homemaking in urban informal settlements

Abstract

The paper contributes to the growing research on relational thinking about housing and home by exploring the informal homes of rural migrants in Khulna city, Bangladesh. The concept of ‘unbounding’ is used to trace the fluidity and connections established between migrant homes and neighbourhood socio-ecologies. Walking interviews exploring women’s livelihoods reveal that different expendable agencies of the urban environment (e.g. trash, weeds and animal excreta) create conditions for labour in which migrant women hold specific competencies to secure essential resources for home. Unbounding positions home within a socio-ecology of multiple houses that women traverse to support their urban living. The approach offers opportunities to examine the unique ways urban homeless populations strategically as well as affectively engage with under-recognized agencies and actors in informal settlements. Unbounding provides a useful lens with which to raise new conceptual and empirical questions about housing and home in relation to the city that contributes to the homes and livelihoods of marginalized populations.     

结合ISO/IEC 15018浅谈住宅布缆

随着物联网时代的到来,中国的家庭生活正在经历智能化进程,住宅布缆标准化在促进住宅智能化的进程中发挥着重要的作用。介绍了住宅布缆现状及住宅布缆的标准化情况,在此基础上从ISO/IEC 15018《信息技术住宅通用布缆》标准出发对住宅布缆进行指导,并给出了ISO/IEC 15018的重要意义。     

Risk Assessment at the Edge: Applying NERC CIP to Aggregated Grid-Edge Resources

Distributed energy resources (DERs) promise to deliver benefits for both utilities and consumers by dynamically interoperating utility systems with customer-owned grid-edge technologies. These small energy-consuming devices are increasingly being aggregated for participation in grid markets, planning and operations. A cyber attack penetrating the control system of aggregated DERs could negatively impact the operation of the grid. In the worst case, the power grid could be severely damaged and physical safety compromised.In this paper we analyze cybersecurity risks associated with the aggregation of DERs and develop an approach to mitigating that risk. The approaches to both cyber risk analysis and mitigation were developed during a recent research project that serves as an example of how the approaches could be applied. However, both the risk analysis and mitigation are applicable to the broader domain of all DERs. An important conclusion is that the successful cyber compromise of aggregated DERs could have a significant impact on the bulk power system. This is the case even if each individual DER falls below the threshold of compliance with bulk-grid cybersecurity standards.For this reason, we specifically investigate how National Electricity Reliability Corporation’s Critical Infrastructure Protection requirements could flow down to interactions between DER aggregators and the DERs themselves in order to protect the grid from these bulk-scale cyber attack impacts.     

Comparative Study of Manufactured Housing Production Systems

This paper illustrates the production process of a manufactured housing factory and potential bottlenecks that could affect the system efficiency. To investigate ways for improving the performance of the U-shaped flow pattern layouts, a comparative study between two case study factories was conducted to realize their relative efficiencies and drawbacks. Process maps were prepared to establish the subactivity relationship at every assembly and subassembly station. Time data were collected for the station process time and the subactivity process time at the two factories to realize a generic (streamlined) system. The efficient criteria of the two systems were joined to develop a streamlined generic system.