Automation and Robotics Used in Hydroponic System

Hydroponic system requires periodic labor, a systematic approach, repetitive motion and a structured environment. Automation, robotics and IoT have allowed farmers to monitoring all the variables in plant, root zone and environment under hydroponics. This research introduces findings in design with real time operating systems based on microcontrollers; pH fuzzy logic control system for nutrient solution in embed and flow hydroponic culture; hydroponic system in combination with automated drip irrigation; expert system-based automation system; automated hydroponics nutrition plants systems; hydroponic management and monitoring system for an intelligent hydroponic system using internet of things and web technology; neural network-based fault detection in hydroponics; additional technologies implemented in hydroponic systems and robotics in hydroponic systems. The above advances will improve the efficiency of hydroponics to increase the quality and quantity of the produce and pose an opportunity for the growth of the hydroponics market in near future

Transfer Cost of Virtual Machine Live Migration in Cloud Systems

Virtualised frameworks typically form the foundations of Cloud systems, where Virtual Machine (VM) instances provide execution environments for a diverse range of applications and services. Modern VMs support Live Migration (LM) – a feature wherein a VM instance is transferred to an alternative node without stopping its execution. The focus of this research is to analyse and evaluate the LM transfer cost which we define as the total size of data to be transferred to another node for a particular migrated VM instance. Several different virtualisation approaches are categorised with a shortlist of candidate VMs for evaluation. The selection of VirtualBox as the best representative VM for our experiments and analysis is then discussed and justified. The paper highlights the major areas of the LM transfer process – CPU registers, memory, permanent storage, and network switching – and analyses their impact on the volume of information to be migrated which includes the VM instance with the required libraries, the application code and any data associated with it. Then, using several representative applications, we report experimental results for the transfer cost of LM for respective VirtualBox instances. We also introduce a novel Live Migration Data Transfer (LMDT) formula, which has been experimentally validated and confirms the exponential nature of the LMDT process. Our estimation model supports efficient design and development decisions in the process of analysing and building Cloud systems. The presented methodology is also applicable to the closely-related area of virtual containers which is part of our current and future work

4th International Symposium on Ambient Intelligence (ISAmI 2013)

Ambient Intelligence (AmI) is a recent paradigm emerging from Artificial Intelligence (AI), where computers are used as proactive tools assisting people with their day-to-day activities, making everyone’s life more comfortable. Another main concern of AmI originates from the human computer interaction domain and focuses on offering ways to interact with systems in a more natural way by means user friendly interfaces. This field is evolving quickly as can be witnessed by the emerging natural language and gesture based types of interaction. The inclusion of computational power and communication technologies in everyday objects is growing and their embedding into our environments should be as invisible as possible. In order for AmI to be successful, human interaction with computing power and embedded systems in the surroundings should be smooth and happen without people actually noticing it. The only awareness people should have arises from AmI: more safety, comfort and wellbeing, emerging in a natural and inherent way. ISAmI is the International Symposium on Ambient Intelligence and aiming to bring together researchers from various disciplines that constitute the scientific field of Ambient Intelligence to present and discuss the latest results, new ideas, projects and lessons learned, namely in terms of software and applications, and aims to bring together researchers from various disciplines that are interested in all aspects of this area

Provider-Controlled Bandwidth Management for HTTP-based Video Delivery

Over the past few years, a revolution in video delivery technology has taken place as mobile viewers and over-the-top (OTT) distribution paradigms have significantly changed the landscape of video delivery services. For decades, high quality video was only available in the home via linear television or physical media. Though Web-based services brought video to desktop and laptop computers, the dominance of proprietary delivery protocols and codecs inhibited research efforts. The recent emergence of HTTP adaptive streaming protocols has prompted a re-evaluation of legacy video delivery paradigms and introduced new questions as to the scalability and manageability of OTT video delivery. This dissertation addresses the question of how to enable for content and network service providers the ability to monitor and manage large numbers of HTTP adaptive streaming clients in an OTT environment. Our early work focused on demonstrating the viability of server-side pacing schemes to produce an HTTP-based streaming server. We also investigated the ability of client-side pacing schemes to work with both commodity HTTP servers and our HTTP streaming server. Continuing our client-side pacing research, we developed our own client-side data proxy architecture which was implemented on a variety of mobile devices and operating systems. We used the portable client architecture as a platform for investigating different rate adaptation schemes and algorithms. We then concentrated on evaluating the network impact of multiple adaptive bitrate clients competing for limited network resources, and developing schemes for enforcing fair access to network resources. The main contribution of this dissertation is the definition of segment-level client and network techniques for enforcing class of service (CoS) differentiation between OTT HTTP adaptive streaming clients. We developed a segment-level network proxy architecture which works transparently with adaptive bitrate clients through the use of segment replacement. We also defined a segment-level rate adaptation algorithm which uses download aborts to enforce CoS differentiation across distributed independent clients. The segment-level abstraction more accurately models application-network interactions and highlights the difference between segment-level and packet-level time scales. Our segment-level CoS enforcement techniques provide a foundation for creating scalable managed OTT video delivery services

Constructing Womanhood and the Female Cyborg: A Feminist Reading of Ex Machina and Westworld

Female cyborgs have occupied the collective imagination since 1927’s iconic science fiction film Metropolis, reappearing in various popular films and television shows since Metropolis. Some feminist critics argue that depictions of female robots and cyborgs in earlier film and television reinforce sexist norms about female characters in film and television through imagining gendered robots and cyborgs in the form of an “ideal” female body and robots programmed by male scientists for their own purpose; others, however, argue that these same cyborg depictions disrupt traditional binaries of male/female and the biological/technological. How do more recent cinematic and televisual texts’ portrayals of female cyborgs extend or complicate these critiques, especially as the representational strategies of texts such as Ex Machina and Westworld draw from contemporary cultural anxieties about gender, labor, and technology reflected in popular narratives about “the end of men” or the displacements of an increasingly technologized American work force? Attending to the complex ways in which gender, race and sexuality are articulated in these recent fictional texts through a human/robot distinction they both reinscribe and unsettle, and drawing primarily from feminist film studies, cyborg studies, and feminist theory, I argue that Ex Machina’s and HBO’s Westworld’s female cyborgs ultimately re-purpose a trope that conventionally and ostensibly re-entrenches gender and racial norms toward a feminist critique of how U.S. popular culture generally negotiates the perceived promise and peril of new technologies through “old” technologies of race and gender

Development of an Adaptive Environmental Management System for Lejweleputswa District: A Participatory Approach through Fuzzy Cognitive Maps

Published ThesisEnvironmental pollution caused by mines within the district of Lejweleputswa in Free State is a major contributor to health issues and the inability to grow crops within the mining communities. Mining industries continue to develop environmental management systems/plans to mitigate the impact their operations has on the society. Even with these plans, there are still issues of environmental pollution affecting the society. Though there are Information Communication and Technology (ICT) based pollution monitoring solutions, their use is dismal due to lack of appreciation or understanding of how they disseminate information. Furthermore, non-adopting community members are being regarded as inherently conservative or irrational, but these community members argue that the recommendations and technologies brought to them are not always appropriate to their circumstances. There was concern that local people’s knowledge of their environment, farming systems, and their social as well as economic situation had been ignored and underestimated when ICTs solutions are being implemented (Warburton & Martin, 1999). Another challenge is that there is no station to monitor pollution for small communities such as Nyakallong in the district. This result in mining communities depending on their own local knowledge to observe and monitor mining related environmental pollution. However, this local knowledge has never been tested scientifically or analysed to recognize its usability or effectiveness. Mining companies tend to ignore this knowledge from the communities as it is treated like common information with no much scientific value. As a step towards verifying or validating this local knowledge, fuzzy cognitive maps were used to model, analyse and represent this linguistic local knowledge. Although this local knowledge assists in mitigating environmental pollution, incorporating it with scientific knowledge will improve its relevance, trustworthiness and acceptability by majority of community members and policy-makers. Information and Communication Technologies (ICTs) can accelerate this integration; this is the focus of this research. The increased usages of Information Technology being witnessed today makes it the most important factor for the world to depend on for solutions to many of today’s and tomorrow’s problems. These solutions make use of various forms for dissemination purposes, one of the most versatile dissemination device is a mobile phone since majority of the world’s population do own a mobile phone. In this way information is easily accessible by almost everyone that needs it. A novel environmental management solution was designed to work within the mining communities of Lejweleputswa. The research started off by designing a unique integration framework that creates the much-needed link between local knowledge and scientific knowledge. The framework was then converted into an adaptable environmental pollution management system prototype made up of three components; (1) gathering environmental pollution knowledge; (2) environmental monitoring and; (3) environmental dissemination and communication. To achieve sustainability, relevance and acceptability, local knowledge was integrated in each of the three components while mobile phones were used as both input and output devices for the system. In order to facilitate collection and conservation of local knowledge on environmental monitoring, an elaborate android-based mobile application was developed. Wireless sensor-based gas sensor boards were acquired, and deployed as a compliment to conventional monitoring stations, they were used to gather scientific knowledge. To allow for public access to the system’s data, a web portal and an SMS-based component were also implemented. In order to collect local knowledge from community, a case study of Nyakallong community in Lejweleputswa was carried out. On completion of the system prototype, it was evaluated by participants from the community; 90% of respondents gave a score of ‘excellent ‘

The Rapture Of Being Alive: Mourning, Narrative, And Communicative Ritual In The Digital Age

Conversations have an afterlife. But what if the afterlife could have conversations? In that metaphorical space, the author explores how technology and design will engender new communicative rituals and tools of mourning as the semiotics of traditional gravescapes begin to diffuse. This pivot will occur in tandem with the rise of alternative forms of body disposition and growing environmental stewardship in response to increased urbanization and notions of intergenerational equity. Digital space, the postmodern hearth of an ever individualized and fractured society, will enable a plurality of mourning as the idea of legacy is deconstructed within the framework of transhumanism and the construction of the self. This paper will investigate the multidisciplinary, synaptic connections of narrative, digital technology, bereavement studies, thanatology, post-humanism, gifting, and sustainability in order to support my proposal for the design white space surrounding end-of-life care. The final design, an extension of the Death Positive movement, is called LifeWrite; however, its implementation transcends the physical endpoint of death. LifeWrite is endowed with multiple life course applications. The final design is also intended to be a therapeutic tool for those persons or families navigating forms of psychosocial death, i.e. various dementias, certain mental illnesses, or traumatic brain injuries

The Rapture Of Being Alive: Mourning, Narrative, And Communicative Ritual In The Digital Age

Conversations have an afterlife. But what if the afterlife could have conversations? In that metaphorical space, the author explores how technology and design will engender new communicative rituals and tools of mourning as the semiotics of traditional gravescapes begin to diffuse. This pivot will occur in tandem with the rise of alternative forms of body disposition and growing environmental stewardship in response to increased urbanization and notions of intergenerational equity. Digital space, the postmodern hearth of an ever individualized and fractured society, will enable a plurality of mourning as the idea of legacy is deconstructed within the framework of transhumanism and the construction of the self. This paper will investigate the multidisciplinary, synaptic connections of narrative, digital technology, bereavement studies, thanatology, post-humanism, gifting, and sustainability in order to support my proposal for the design white space surrounding end-of-life care. The final design, an extension of the Death Positive movement, is called LifeWrite; however, its implementation transcends the physical endpoint of death. LifeWrite is endowed with multiple life course applications. The final design is also intended to be a therapeutic tool for those persons or families navigating forms of psychosocial death, i.e. various dementias, certain mental illnesses, or traumatic brain injuries

“You Must Be an Android”: The Persistence of Humanist Hierarchies in Posthumanist Science Fiction

This thesis examines science fiction dystopias in which the vestiges of humanist philosophy taint the construction of posthuman subjects. With a grounding in the tenets of both humanist and posthumanist philosophy, I analyze eight works of science fiction that depict artificial intelligence, cyborgs, and body swapping to determine the common critiques made. The source of the troubling aspects of these imagined futures doesn’t derive strictly from the presence of advanced, posthumanist technologies. Instead, the authors shine a light on the monstrosity that results when technological posthumanism comes to fruition while their imagined future societies remain grounded in humanist hierarchies, including that of class, gender, and race