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Adaptive controller design and power loss analysis of resistive and inductive cell balancing during static, charging, and discharging mode
No full textA key feature of a battery management system is cell balancing for series-connected lithium-ion cells. Numerous cell balancing methods have been studied in the literature and are categorised into two categories: active and passive. The cheapest and simplest method of cell balancing without complex management is passive cell balancing, although it wastes energy through heat generation and leaves room for overcharge and discharge owing to a lack of control. There are many active cell balancing topologies available, but the one that is being presented is based on a single inductor, which has the advantages of requiring the fewest possible components, being inexpensive, being tiny, and having high efficiency and quick cell balancing speed. The fundamental resistor cell balancing technique is also implemented. The battery pack is made up of four series-connected cells. To test the accuracy of the balancing topology, each cell has a unique initial SOC condition. Two cases and three operating modes-static, charging, and discharging-have been tested. The balance time and switching frequency are both fixed, and power loss calculations are performed to compare the effectiveness of the two approaches
Exploitation of man-made objects shadows in multi-perspective drone-borne based SAR images:preliminary experimental results
No full textThis study presents a preliminary analysis that explores the use of multi-perspective shadows in drone-borne SAR images for target characterization. Shadows in SAR images provide an advantage by offering insights into target dimensions and shapes. By leveraging system geometry, they enable the estimation of target height, adding a crucial dimension not readily apparent in conventional 2D imagery. Integrating height estimates obtained from images captured at different grazing angles can significantly enhance estimation accuracy and target characterization. This paper presents a decentralized methodology that extracts information from shadowed regions within individual images and subsequently fuses them through an averaging operation. Experimental data collected using a 24 GHz INRAS drone-borne SAR system with varying grazing angles are presented to validate the proposed approach. The results demonstrate the potential of multi-perspective shadows in reducing estimation errors and enhancing target characterization in SAR imagery
The Longitude and Latitude of World Cinema: Recalculating...
No full textA revised and expanded introduction for The Routledge Companion to World Cinema, Second Editio
Aphra Behn, Anne Wharton, and the Remaking of Rochester’s Reputation
No full textRestoration scholarship has often assumed both that Aphra Behn and the Earl of Rochester were personally acquainted and that Rochester was an important influence on Behn’s writing. This article reassesses the evidence for a literary relationship between Behn and Rochester, most of which postdates Rochester’s death in 1680. Focusing in particular on two poems by Behn – ‘To Mrs. W.’, addressed to Rochester’s niece, Anne Wharton, and her elegy ‘On the Death of the late Earl of Rochester’ – it argues that what may look like a literary relationship between Behn and Rochester is often and more importantly a connection between Behn and Wharton. Positing a late (1685) date for ‘On the Death of the late Earl of Rochester’, it reframes its likely role within Behn’s career, and links it with wider efforts led by Wharton to refashion Rochester’s reputation after his death. It also explores the implications of the Behn-Wharton-Rochester relationship for Behn’s self-curation as a poet in the mid-1680s, as well as for Wharton’s own poetic development and literary ambitions. <br/
The Impact of Donor Engagement on Bureaucratic Ambition and Motivation in Aid Recipient Countries:Brief Report
No full textCritical approaches to donor programming in non-Western settings are essential to our understanding of bilateral and multilateral development administration. Greater emphasis on political analysis of aid provision and effectiveness is welcome, but there remains little emphasis on how working with donors shapes ambitions and motivations bureaucrats working in aid-recipient countries, and a lack of evidence on how these shifts impact state capacity over time. Bringing the literature on the politics of aid in conversation with that on bureaucratic politics and motivation, this brief report argues for investigating how donor engagement impacts bureaucratic ambition and motivation by considering its impact on autonomy and ability to effect change. The report draws on fieldwork in Pakistan to operationalise these mechanisms, but advocates for more research to investigate whether engaging with donor agencies disengages bureaucrats from state politics and governance with consequences for state capacity and the success of donor programming.<br/
Seizing the high ground: the rise and fall of political institutions in Early Bronze Age Britain
No full textThe multifunctional organic phase change materials for battery thermal safety in electric transportation systems:A critical review
No full textElectric transportation systems are great alternatives to conventional fossil-fuel-powered transportation systems. The thermal safety of high-energy-density lithium-ion batteries (LIBs), which are the main energy source in electric transportation systems, is one of the most major challenges facing the applications of these systems. Phase change material (PCM)-based battery thermal management systems are an effective solution for battery thermal safety, and they have a great application potential. However, the thermal safety of LIBs involves thermal management and thermal runaway protection, which require composite PCMs (CPCMs) with excellent thermal management cooling effect and stable thermal runaway protection capability. Thus, the optimizing strategies used for enhancing the structural stability, thermal conductivity, and flame retardancy of CPCMs were compared and analyzed. Moreover, the design of PCMs with thermal management and thermal-runaway-flame-retardant suppression capabilities was discussed. Finally, future research directions for using multifunctional PCMs in battery thermal safety systems were proposed based on critical thinking. This review will provide new insights and attract considerable attention to the reliability of thermal safety systems based on multifunctional PCMs in future designs, especially in the field of battery thermal safety
Digital Technologies in Innovation Ecosystem:A Systematic Review of Current Trends and Future Perspective
No full textThis article explores the role of digital technologies in innovation ecosystems. Using the systematic literature review (SLR) technique, we have reviewed and analyzed 71 articles published in major innovation journals. Our review was conducted using a comprehensive search strategy, to identify, select, evaluate, and synthesize pertinent literature on this topic. The findings of this review are categorized into three main sections: (i) quantitative descriptive analysis—highlighting existing research profile, (ii) thematic content analysis—delineating extant literature into key streams and presenting a comprehensive synthesis, and (iii) critical analysis—highlighting knowledge gaps in the current literature and to set a future research agenda by developing specific research questions. We contribute to the innovation literature by developing a synthesized framework that provides a bird's eye view at the intersection of digital technologies and the innovation ecosystem. The findings of this review provide novel insights into how digital technologies can be effectively used to support innovation ecosystems as well as the challenges that need to be addressed to fully realize their potential.</p
The Impact of Donor Engagement on Bureaucratic Ambition and Motivation in Aid Recipient Countries:Brief Report
No full textCritical approaches to donor programming in non-Western settings are essential to our understanding of bilateral and multilateral development administration. Greater emphasis on political analysis of aid provision and effectiveness is welcome, but there remains little emphasis on how working with donors shapes ambitions and motivations bureaucrats working in aid-recipient countries, and a lack of evidence on how these shifts impact state capacity over time. Bringing the literature on the politics of aid in conversation with that on bureaucratic politics and motivation, this brief report argues for investigating how donor engagement impacts bureaucratic ambition and motivation by considering its impact on autonomy and ability to effect change. The report draws on fieldwork in Pakistan to operationalise these mechanisms, but advocates for more research to investigate whether engaging with donor agencies disengages bureaucrats from state politics and governance with consequences for state capacity and the success of donor programming.<br/
Oral Histories of Sexual Health before HIV/AIDS
No full textAs part of my UKRI FLF, I am leading the development of an Oral History Collection in partnership with the British Library and National Life Stories. It contains interviews from consultants, nurses, contact tracers, activists, migrants, sex workers and service users. As the first Collection focused on sexual health before the AIDS crisis, it is a unique and significant research resource. The Collection is due for deposit with the British Library in 2027, after which it will become permanently accessible
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