16,111 research outputs found
Conceptualising the natural environment: critical reflections from Russia, 18th-20th Centuries, 22-23 March 2013
The workshop was co-organised by Jonathan Oldfield (University of Glasgow, UK) and Julia Lajus (European University at St. Petersburg). It was funded by grants from the UKâs Arts and Humanities Research Council (AHRC) and Economic and Social Research Council (ESRC). Additional funds were provided by the Centre for Russian, Central and East European Studies (CRCEES), which is based at the University of Glasgow, UK. The workshop brought together 16 papers delivered by scholars from Russia, the European Union and North America. It was hosted by the European University at St. Petersburg
From Liverpool to Mount Vernon : Edward Rushton in transatlantic perspective
Among historians of British anti-slavery Edward Rushton is probably best known for his West-Indian Eclogues, which established his reputation as a hard-line anti-slavery activist. Perhaps less well known is his second abolitionist publication, his Expostulatory Letter to George Washington, of Mount Vernon, in Virginia, on his continuance to be a proprietor of slaves, published in Liverpool in 1797. Both works were startlingly original. In West-Indian Eclogues, Rushton had flirted with the idea of slave insurrection as a justifiable (even laudable) response to black enslavement, presenting his readers with assertions of black fury and black-on-white violence that were startlingly at odds with the non-confrontational tone of most eighteenth-century anti-slavery rhetoric. Rushtonâs letter to George Washington was equally blunt and uncompromising, challenging the former President of the United States to free his slaves, presumably with immediate effect, thereby making good what he (Rushton) saw as Americaâs commitment to the ideas of freedom and equality. By any standard it was a bold, even foolhardy, intervention into public debates about slavery that tells us not only a great deal about Rushton but also about the transatlantic roots and complexion of British anti-slavery during the âAge of Revolutionâ
Exploiting connectedness in the informatics curriculum
The power of modern communication technology gives us an opportunity, as Informatics educators, to enhance our ability to develop our students' skills in virtual teamworking. We discuss why virtual teamworking is as relevant for students in traditional campus-based universities as it is in a distance learning context. We highlight some of the questions to be answered, and some of the problems to be overcome, in the context of our experiences in designing and delivering a virtual teamworking course at the UK Open University
GPS-guided mobile robot platform featuring modular design elements for agricultural applications : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Engineering in Mechatronics at Massey University Turitea Campus, Palmerston North, New Zealand
The agricultural industry has not seen significant innovation in development of low-cost automated farming solutions, with current systems costing several thousands of dollars to implement. Currently these automated solutions are primarily implemented around crop planting and harvesting, and the large implementation cost of these systems makes them unfeasible for small-scale operations. Within many agricultural industries, workers expend a considerable amount of time undertaking simple tasks that are labour intensive. Many of these tasks could instead be completed using a self-driving robotic platform outfitted with the appropriate devices required for the tasks.
This thesis covers the research work aiming to produce a solution that could turn an existing farming vehicle into a multipurpose low-cost agricultural platform, to act as the platform for an autonomous vehicle capable of performing pre-programmed tasks within an agricultural environment. A quad bike was selected as the vehicle platform for this research in which the control modules would control the speed and direction of this farm bike.
Four modules were developed to control the vehicle components that would normally be operated by a human operator. These modules are comprised of mechanical actuators coupled with a microcontroller control system and includes some specific designs to maintain the user's ability to manually control the pre-existing systems. A gear-changing module controls the vehicles manual gearbox, providing a method to detect and control the vehicles current gear. A speed control module was developed to control the vehicles throttle and braking system and detects the vehicles speed. A steering module controls the vehicles steering system, allowing for accurate control of the vehicles direction. Finally, a vehicle controller module provides a central command interface that ties the previous three modules together and controls the vehicles electrical components and engine.
Development of a low-cost differential GPS (DGPS) system was also undertaken to reduce the implementation cost of the system. Due to inconclusive results in relation to the positional accuracy of this system is was decided that a standard GPS system would be used for the vehicle prototype with further development on the DGPS system would be undertaken in future development of the research.
The successful development of a farm automated vehicle platform was achieved through this research. With further improvement on software, intelligent control and the development of a low-cost differential global positioning satellite (GPS) system, a fully autonomous farm platform that can be outfitted with different tools or devices for the required farm tasks is feasible and practical
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Developing Online Team Skills
This paper discusses the development and delivery of a new course at the UK Open University (OU). The course makes a virtue of the fact that OU students study in a predominantly distance learning environment, by providing a structure within which team working activities are carried out with no face-to-face contact whatsoever. Issues that were considered in designing this course and decisions about tutoring and assessing the students' team working experience are discussed. Preliminary results from the first delivery of the course, including analysis of archived team conferences, are presented. Directions for future development and enhancement are indicated
An analysis of consumer panel data
In terms of collecting comprehensive panel expenditure data, there are trade-offs to be made in terms of the demands imposed on respondents and the level of detail and spending coverage collected. Existing comprehensive spending data tends to be cross-sectional whilst panel studies include only limited expenditure questions that record spending only as broad aggregates. More recently, economists have begun to use spending information collected by market research companies that records very detailed spending down to the barcode level from a panel of households, usually recorded by in-home barcode scanners, which may provide considerable advantages over existing data more commonly used in social sciences. However, there has not been a comprehensive assessment of the strengths and weaknesses of this kind of data collection method and the potential implications of survey mode on the recorded data.
This paper seeks to address this, by an in-depth examination of scanner data from one company, Taylor Nelson Sofres (TNS), on grocery purchases over a five-year period. We assess how far the ongoing demands of participation inherent in this kind of survey lead to 'fatigue' in respondents' recording of their spending and compare the demographic representativeness of the data to the well-established Expenditure and Food Survey (EFS), constructing weights for the TNS that account for observed demographic differences. We also look at demographic transitions, comparing the panel aspect of the TNS to the British Household Panel Study (BHPS). We examine in detail the expenditure data in the TNS and EFS surveys and discuss the implications of this method of data collection for survey attrition. Broadly, we suggest that problems of fatigue and attrition may not be so severe as may be expected, though there are some differences in expenditure levels (and to some extent patterns of spending) that cannot be attributed to demographic or time differences in the two surveys alone and may be suggestive of survey mode effects. Demographic transitions appear to occur less frequently than we might expect which may limit the usefulness of the panel aspect of the data for some applications
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