Dissertations / Theses on the topic 'Remote presence'
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Sains, Parvinderpal Singh. "Remote presence robot technology in healthcare." Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502121.
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Moragues, Pons Jeremias. "Practical Experiments on the Efficiency of the Remote Presence : Remote Inspection in an Offshore Wind Turbine." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16780.
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Offshore wind power has become a growing interest in the worldwide society. New research and investigation in this kind of technology is increasing year after year. Thus, the inspection on the offshore wind turbines is expensive but necessary.The goal of this project is to demonstrate the efficiency of a Remote Inspection System inside the nacelle of an Offshore Wind Turbine. The way of carrying out inspections on real nacelles, as well as other aspects from maintenance is discussed. Three different companies have been taken into account when developing an Inspection Plan.This master thesis contains a theoretical design of the input device that would be used in the future for inspection and maintenance tasks. A gamepad has been implemented as a temporary solution for the input device.It has been demonstrated how the prototype is able to detect failures in a scenario simulating a real nacelle. Although it has not been possible to test sound, heat or vibration, this kind of things would be easily detected by adding some more additional sensors.The conclusion is that a solution for reducing maintenance tasks relies on the development of effective condition monitoring and remote control systems.
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Reames, Steve. "Detecting the Presence of Disease by Unifying Two Methods of Remote Sensing." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3120/.
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There is currently no effective tool available to quickly and economically measure a change in landmass in the setting of biomedical professionals and environmental specialists. The purpose of this study is to structure and demonstrate a statistical change-detection method using remotely sensed data that can detect the presence of an infectious land borne disease. Data sources included the Texas Department of Health database, which provided the types of infectious land borne diseases and indicated the geographical area to study. Methods of data collection included the gathering of images produced by digital orthophoto quadrangle and aerial videography and Landsat. Also, a method was developed to identify statistically the severity of changes of the landmass over a three-year period. Data analysis included using a unique statistical detection procedure to measure the severity of change in landmass when a disease was not present and when the disease was present. The statistical detection method was applied to two different remotely sensed platform types and again to two like remotely sensed platform types. The results indicated that when the statistical change detection method was used for two different types of remote sensing mediums (i.e.-digital orthophoto quadrangle and aerial videography), the results were negative due to skewed and unreliable data. However, when two like remote sensing mediums were used (i.e.- videography to videography and Landsat to Landsat) the results were positive and the data were reliable.
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Almgren, Olivia. "Investigating presence in remote meetings; a case study testing extended reality (XR) technology." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290870.
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During times with global pandemics and climate change, the need for companies to be able to conduct their business without travelling is essential. Upholding social distancing and complying to restrictions on travel both globally and nationally have not only forced everyone to conduct their business from home but to do so regardless of technological maturity. While also doing so for an unforeseeable future. In times of change, resilience is key. Having more durable and resilient teams and workers are essential now, tomorrow, and most likely in the future too. Improving the usability of remote collaboration has never been as important. Disregarding the fact that this has been a forced act of measure from the government, the aftermath of this for many companies will surely include reduced costs for travel, improved efficiency and reduced environmental impact. Undoubtedly, there is incentive from a business perspective, but what are the effects from the user's perspective? Derived from previous literature on presence, video communication, quality of experience (QoE) and interaction, this case study set out to examine the following research questions; What current factors influence the remote meetings of employees in a telecommunication company? In what way can extended reality (XR) technology potentially improve their experience? Extended reality (XR) technology refers to all real-and-virtual combined environments including augmented reality (AR), mixed reality (MR) and virtual reality (VR) and other areas that exist among them.With obtained data from interviews and a series of tests, the results indicate that factors from every category; human, system and context factors influence the QoE. Additionally, in its current state, XR technology does not provide enough, especially in terms of quality, to significantly improve anything for these employees. The XR technology has potential to heighten the experience in respects such as mobility, but for presence and social context it did not gain much attraction.Under tider med en global pandemi och klimatfo ra ndringar a r behovet att fo retag ska kunna bedriva sin verksamhetutan att resa stort. Att uppra ttha lla social distansering och fo lja restriktioner pa resor ba de globalt och nationellt harinte bara tvingat alla att bedriva sin verksamhet hemifra n utan att go ra det oavsett teknisk mognad. Det go rs ocksa fo ren ofo rutsebar framtid. I tider av fo ra ndring a r det viktigt att vara anpassningsbar. Att ha mer ha llbara ochmotsta ndskraftiga team och arbetare a r viktigt nu, imorgon och troligtvis a ven i framtiden. Att fo rba ttraanva ndbarheten av samarbete pa distans har aldrig varit lika viktigt.Om man bortser fra n det faktum att detta har varit en pa tvingad a tga rd fra n regeringen, sa kommer konsekvensernafo r ma nga fo retag sa kert att inkludera la gre kostnader fo r resor, fo rba ttrad effektivitet och minskad miljo pa verkan.Utan tvekan finns det incitament ur ett affa rsperspektiv, men vilka a r effekterna ur anva ndarnas perspektiv?Uppbyggt fra n tidigare litteratur om na rvaro, videokommunikation, kvalitet av upplevelsen (QoE) och interaktion,syftar denna fallstudie till att underso ka fo ljande forskningsfra gor; Vilka aktuella faktorer pa verkar distansmo ten fo ransta llda i ett telekommunikationsfo retag? Pa vilket sa tt kan XR-teknik (Extended Reality) potentiellt fo rba ttra derasupplevelse? Med Extended reality (XR) -teknologi menas alla reala-och-virtuella kombinerade miljo er inklusiveAugumented Reality (AR), Mixed Reality (MR) och Virtual Reality (VR) och andra omra den som finns mellan dem.Insamlade data fra n intervjuer och en serie tester visar att faktorer fra n varje kategori; ma nskliga, system- ochkontextuella faktorer pa verkar QoE. I sitt nuvarande tillsta nd, ger XR-tekniken inte tillra ckligt, sa rskilt inte na r detga ller kvalitet, fo r att avseva rt fo rba ttra na got fo r de ansta llda. XR-tekniken har potential att fo rba ttra upplevelsen na rdet ga ller exempelvis ro rlighet, men fo r na rvaro och social kontext har den a n sa la nge inte mycket att bidra med.
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Rahman, Nahian. "Creating a Sense of Presence in Remote Relationships : A concept of Calm Ambient artifact." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-101721.
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Loneliness is a growing social problem that affects people from different age groups. Studies have shown that loneliness is prevalent more in young adults and the elderly demographic. Loneliness can pose serious health issues like cognitive malfunction, heart disease, stroke, depression, etc. People who stay alone from friends and family tend to feel lonelier. Conventional communication tools like a phone or video calls or using social media applications can help the users connect with people but also have adverse effects. As a result of this, the potential of an alternative nonverbal mode of communication needs to be explored. The research aims to understand individuals' behavior, traits, and hidden needs when it comes to loneliness. The purpose is to suggest an alternative way of communication that creates a sense of presence and ensures mental well for the people living alone and suffer from emotional loneliness. The concept of Calm and ambient technology has been explored in this thesis as an alternative means of communication. Users’ needs were gathered from eight semi-structured interviews, and two stakeholders were identified. Over forty ideas were generated from brainstorming. The ideas were sent to twenty individuals through snowballing. The response from them was analyzed and narrowed down by using concept screening and concept scoring. The final concept was a device called ‘One home lamp.’ The device uses light to show the presence of remote family members or loved ones to a person living alone. This concept product was then evaluated through ‘Mankoff’s heuristics’ to see its credibility as a calm ambient artifact.
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Bharambe, Sachin Vasant. "Smart Environment Based On Real-Time Human Position Tracking For Remote Presence And Collaboration." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/86661.
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Real-time, virtual and mixed reality systems have diverse uses for real-world data visualization, representation, and remote collaboration in distant learning settings, especially in universities. Design of such systems involves challenges in mapping the real world data and physical world structure accurately to digital form of physical space, also called as virtual models. Researchers have created similar systems using multiple cameras, stereo cameras, accelerometers, and motion detectors. This report presents a platform to detect and track real-time locations of people present in buildings and map their location information into virtual models as avatars using omni-directional cameras installed in the physical space. These models were created as part of the Mirror Worlds project. The project infrastructure is funded by National Science Foundation. This infrastructure enables users to connect virtual and physical aspects of the environment through a coordinate-based data networking system to enable interaction with the rest of the system including environment objects and other users. This is an interdisciplinary project where students from various departments have worked on the development of virtual model of the Moss Art Center and Torgersen Hall in Unity / X3D. Some students from the Department of Computer Science have developed a coordinate-based data networking system. The prototype of a detection and tracking algorithm to extract the location information was developed using background subtraction in MATLAB.
The proposed approach was developed using the combination of background subtraction and neural networks along with heuristics based on spatial information about the physical space. The system was scaled to work across multiple buildings, extract the location information of people present in the physical space, and map location information into shared virtual space as an avatar. The concept of remote presence was extended to create a collaborative object manipulation application using Leap Motion controller. Effects of fidelity were evaluated to perform the collaborative object manipulation task in shared virtual space based on user study conducted for this application.
Since no annotated people video dataset is publicly available with overhead view from omni-directional cameras, three videos were annotated manually to test the performance of the approach. The current approach almost works at near real-time rates. All three video sequences were evaluated to compute frame based detection accuracy. Precision and recall obtained for the first video sequence of people detection is 93.85% and 95.06% respectively.Master of Science
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Hauber, Joerg. "Understanding Remote Collaboration in Video Collaborative Virtual Environments." Thesis, University of Canterbury. Computer Science and Software Engineering, 2008. http://hdl.handle.net/10092/1247.
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Video-mediated communication (VMC) is currently the prevalent mode of telecommunication for applications such as remote collaboration, teleconferencing, and distance learning. It is generally assumed that transmitting real-time talking-head videos of participants in addition to their audio is beneficial and desirable, enabling remote conferencing to feel almost the same as face-to-face collaboration. However, compared to being face-to-face, VMC still feels distant, artificial, cumbersome, and detached. One limitation of standard video-collaboration that contributes to this feeling is that the 3D context between people and their shared workspace given in face-to-face collaboration is lost. It is therefore not possible for participants to tell from the video what others are looking at, what they are working on, or who they are talking to. Video Collaborative Virtual Environments (video-CVEs) are novel VMC interfaces which address these problems by re-introducing a virtual 3D context into which distant users are mentally "transported" to be together and interact with the environment and with each other, represented by their spatially controllable video-avatars. To date, research efforts following this approach have primarily focused on the demonstration of working prototypes. However, maturation of these systems requires a deeper understanding of human factors that emerge during mediated collaborative processes. This thesis contributes to a deeper understanding of human factors. It investigates the hypothesis that video-CVEs can effectively support face-to-face aspects of collaboration which are absent in standard video-collaboration. This hypothesis is tested in four related comparative user studies involving teams of participants collaborating in video-CVEs, through standard video-conferencing systems, and being face-to-face. The experiments apply and extend methods from the research fields of human-computer interaction, computer-supported cooperative work, and presence. Empirical findings indicate benefits of video-CVEs for user experience dimensions such as social presence and copresence, but also highlight challenges for awareness and usability that need to be overcome to unlock the full potential of this type of interface.
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Ashby, Joe Ed. "Using Collaborative Technologies in Remote Lab Delivery Systems for Topics in Automation." NSUWorks, 2009. http://nsuworks.nova.edu/gscis_etd/80.
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Lab exercises are a pedagogically essential component of engineering and technology education. Distance education remote labs are being developed which enable students to access lab facilities via the Internet. Collaboration, students working in teams, enhances learning activity through the development of communication skills, sharing observations and problem solving. Web meeting communication tools are currently used in remote labs.
The problem identified for investigation was that no standards of practice or paradigms exist to guide remote lab designers in the selection of collaboration tools that best support learning achievement. The goal of this work was to add to the body of knowledge involving the selection and use of remote lab collaboration tools. Experimental research was conducted where the participants were randomly assigned to three communication treatments and learning achievement was measured via assessments at the completion of each of six remote lab based lessons. Quantitative instruments used for assessing learning achievement were implemented, along with a survey to correlate user preference with collaboration treatments.
A total of 53 undergraduate technology students worked in two-person teams, where each team was assigned one of the treatments, namely (a) text messaging chat, (b) voice chat, or (c) webcam video with voice chat. Each had little experience with the subject matter involving automation, but possessed the necessary technical background.
Analysis of the assessment score data included mean and standard deviation, confirmation of the homogeneity of variance, a one-way ANOVA test and post hoc comparisons. The quantitative and qualitative data indicated that text messaging chat negatively impacted learning achievement and that text messaging chat was not preferred. The data also suggested that the subjects were equally divided on preference to voice chat verses webcam video with voice chat. To the end of designing collaborative communication tools for remote labs involving automation equipment, the results of this work points to making voice chat the default method of communication; but the webcam video with voice chat option should be included.
Standards are only beginning to be developed for the design of remote lab systems. Research, design and innovation involving collaboration and presence should be included.
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Dimock, William John. "Spatial factors affecting white grub presence and abundance in golf course turf." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11189.
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A regional IPM project was initiated with four rounds of sampling for white grubs on the fairways of nine golf courses located on the Lower Peninsula of eastern Virginia, from 2000 through 2002. Fifteen regressor variables were collected and measured that included local-scale variables, golf course management practices and spatial pattern metrics derived from satellite images that underwent two methods of a supervised classification of six land-cover types (turf, woods, wetland, urban, bare soil and water) on four landscape scales derived from 10 km x 10 km buffer zones surrounding each golf course. Pearson's correlation coefficients were calculated to reduce the number of variables to a few that were highly correlated with white grub densities. Mallow's C(p) calculations were performed on the reduced variable sets to extract those that would be highly predictive. A multiple linear regression was performed using the Mallow's variables to develop eight regression equations (two classification methods x four landscape scales) that were used to predict regional white grub presence and abundance in 2003 on six additional golf courses located on the Lower Peninsula. The best model was the 6 km x 6 km buffer zones model from the second classification method, which included one local-scale variable (golf course age) and three spatial pattern metrics (total turf area, total turf area-to-total urban area ratio, and a woods interspersion-juxtaposition index). The mean difference between actual and predicted values was -0.15, standard deviation = 0.79, R2 = 81.38%. Additionally, a study was conducted to determine whether the number of white grubs collected from transects of sampled golf course fairways was significantly different from those found in the roughs. White grub counts from the roughs were significantly higher (mean = 0.283 grubs/transect, standard error = 0.0135) than those from fairways (mean = 0.146 grubs/transect, standard error = 0.0188); t = -4.31, df = 735, P = 0.0001.Ph. D.
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Heiss, Leah Rose Laurel, and leah heiss@rmit edu au. "Empathy and the space between: investigating the role of digitally enhanced apparel in promoting remote empathetic connection." RMIT University. Architecture and Design, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070112.101632.
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This body of work is the culmination of a two year investigation into the role of electronically enhanced apparel and artefacts in providing empathetic linkage between people who do not share physical space. The research draws from the diverse fields of philosophy, communications theory, neuropsychology, presence technologies and technologically advanced textiles, and proposes that a nexus of these disciplines may provide significant opportunities for enhancing the user interactivity of garments and artefacts. Remote emotional connection is investigated through the creation of sensor embedded garments and artefacts that have been developed in collaboration with a fashion designer and an electronics engineer. The prototypes encourage remote empathetic connection through the real-time transference of heartbeat. The exegesis is structured into five chapters which consider remote presence, flexible consciousness, the architecture of empathy, plasticity in sense perception and the development of prototypes. The project chapter focuses in the development of and testing of a rnage of garments and artefacts thatt conduct presence information between remotely located people. The garments sense, process, transmit and receive the heartbeat signal (ECG). They are enabled with ECG sensors, signal processing equipment, small vibration motors and radio transceivers which allow users to 'feel' the heartbeat of a remote friend/lover/relative as vibration through their garment. The prototypes aim to enrich the remote communications experience through reintroducing an embodied, tactile dimension that is present in face-to-face communication. A range of user testing trials are discussed in the thesis which have been undertaken to assess the impact of the garments at a conscious and a non-conscious level. Conscious experiences were gauged through qualitative testing by way of interviews and unsolicited written reactions. Non-conscious physiological ractions were assessed by recording ECG throughout user-testing periods. This data has been processed by using HRV (heart rate variability) analysis software, running on MatLab.
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Rydenfors, Gabriella. "Telepresence and remote communication through virtual reality." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-139936.
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This Master Thesis concerns a telepresence implementation which utilizes state-of-the-art virtual reality combined with live 360 degree video. Navigation interfaces for telepresence with virtual reality headsets were developed and evaluated through a user study. An evaluation of telepresence as a communication media was performed, comparing it to video communication. The result showed that telepresence was a better communication media than video communication.
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Thomas, Alison Rebecca. "Sidetracks in remote digital teaching – Facilitating a sense of presence, closeness and immediacy in times of physical distancing." Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22163.
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With the aim of designing tools, processes and means to support secondary school teachers in maintaining a sense of presence, closeness and immediacy when interacting with their pupils remotely in rapidly appropriated digital learning environments due to Covid-19, this thesis examined the meaning, importance and possibilities of creating a sense of presence, closeness and immediacy in remote digital teaching.The process was based on research for design, encompassing literature study, field research and methods of interaction design to reach conclusions on meaningful tools, processes and means of supporting secondary-school teachers in remote digital teaching.Main findings unveiled a sense of presence as a prerequisite for closeness and immediacy and real-time video lessons as the main approach to remote digital teaching, potentially creating an illusion of presence, closeness and immediacy due to pupils’ choice of black screens and muted microphones.Potentially meaningful approaches to achieving a sense of presence, closeness and immediacy identified in this thesis include the use of digital representations, representational correspondence and the concept of testimony in designing for a sense of presence, closeness and immediacy in remote digital environments.
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Erxleben, Wayne Henry 1963. "Advanced signal processing techniques for the analysis of solar radiometer data in the presence of temporally varying aerosol optical depths." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282644.
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Solar radiometers, which are used for remote sensing of atmospheric aerosols and absorbing gases, have traditionally been calibrated by the Langley method. Temporally variable conditions, however, can significantly bias the zero-airmass intercepts obtained by this method. In this dissertation, a number of new signal processing techniques are developed to better characterize aerosol variability and use it to obtain improved intercepts under a broad range of conditions. The techniques include (1) an extension of Forgan's method, using correlation between optical depths at different wavelengths to model temporal variations; (2) spectral/fractal analysis and filtering to identify systematic atmospheric variations and distinguish them from noise; and (3) error correction using correlation between results from different data sets. These techniques, along with some preliminary adjustments and an algorithm for estimating ozone content, are incorporated into an iterative processing scheme that both calibrates the instrument and provides improved estimates of each optically significant atmospheric constituent. Finally, the characterization of aerosol variability is further enhanced by analyzing data taken with a customized radiometer that measures diffuse skylight as well as direct sunlight.
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Gatsha, Godson. "Learning support perceptions and experiences of remote distance learners from marginalised communities in Botswana /." Thesis, Pretoria : [s.n.], 2010. http://upetd.up.ac.za/thesis/available/etd-04242010-194233.
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Kalyadin, Dmitry. "Robot data and control server for Internet-based training on ground robots." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002111.
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Gullström, Charlie. "Presence Design : Mediated Spaces Extending Architecture." Doctoral thesis, KTH, Arkitektur, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-24448.
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This thesis is a contribution to design-led research and addresses a readership in the fields of architecture as well as in media and communications. In juxtaposing the tools of the designer (e.g. drafting, prototyping, visual/textual/spatial forms of montage) with those of architectural theory, this thesis seeks to extend the disciplinary boundaries of architecture by observing its assimilation of other media practices. Its primary contribution is to architectural design and theory, and its aims are twofold: Firstly, this thesis applies the concepts of virtual and mediated space to architecture, proposing an extended architectural practice that assimilates the concept of remote presence. Through realized design examples as well as through the history and theory of related concepts, the thesis explores what designing mediated spaces and designing for presence entails for the practicing architect. As a fusion of architecture and media technology, video-mediated spaces facilitate collaborative practices across spatial extensions while simultaneously fostering novel and environmentally sustainable modes of communication. The impact of presence design on workplace design is examined. As an extended practice also calls for an extended discourse, a preliminary conceptual toolbox is proposed. Concepts are adapted from related visual practices and tested on design prototypes, which arise from the author’s extensive experience in designing work and learning spaces. Secondly, this thesis outlines presence design as a transdisciplinary aesthetic practice and discusses the potential contribution of architects to a currently heterogeneous research field, which spans media space research, cognitive science, (tele)presence research, interaction design, ubiquitous computing, second-order cybernetics, and computer-supported collaborative work. In spite of such diversity, design and artistic practices are insufficiently represented in the field. This thesis argues that presence research and its discourse is characterised by sharp disciplinary boundaries and thereby identifies a conceptual gap: presence research typically fails to integrate aesthetic concepts that can be drawn from architecture and related visual practices. It is an important purpose of this thesis to synthesize such concepts into a coherent discourse. Finally, the thesis argues that remote presence through the proposed synthesis of architectural and technical design creates a significantly expanded potential for knowledge sharing across time and space, with potential to expand the practice and theory of architecture itself. The author’s design-led research shows that mediated spaces can provide sufficient audiovisual information about the remote space(s) and other person(s), allowing the subtleties of nonverbal communication to inform the interaction. Further, in designing for presence, certain spatial features have an effect on the user’s ability to experience a mediated spatial extension, which in turn, facilitates mediated presence. These spatial features play an important role in the process through which trust is negotiated, and hence has an impact on knowledge sharing. Mediated presence cannot be ensured by design, but by acknowledging the role of spatial design in mediated spaces, the presence designer can monitor and, in effect, seek to reduce the ‘friction’ that otherwise may inhibit the experience of mediated presence. The notion of ‘friction’ is borrowed from a context of knowledge sharing in collaborative work practices. My expanded use of the term ‘design friction’ is used to identify spatial design features which, unaddressed, may be said to impose friction and thus inhibit and impact negatively on the experience of presence. A conceptual tool-box for presence design is proposed, consisting of the following design concepts: mediated gaze, spatial montage, active spectatorship, mutual gaze, shared mediated space, offscreen space, lateral and peripheral awareness, framing and transparency. With their origins in related visual practices these emerge from the evolution of the concept of presence across a range of visual cultures, illuminating the centrality of presence design in design practice, be it in the construction of virtual pictorial space in Renaissance art or the generative design experiments of prototypical presence designers, such as Cedric Price, Gordon Pask and numerous researchers at MIT Media Lab, Stanford Institute and Xerox PARC.QC 20100909
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Burke, Jennifer L. "RSVP : an investigation of the effects of Remote Shared Visual Presence on team process and team performance in urban search and rescue teams." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001501.
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Ashpole, Ian. "Patterns and causes of spatial and temporal variability of dust presence in the central and western Sahara." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:1b071769-d3a4-42ac-8960-43f990383bc8.
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Dust is a critical component of the Earth System. The central and western Sahara (CWS) is the dustiest place on Earth during the northern hemisphere summer. Understanding patterns and causes of spatial and temporal variability of dust presence here is essential for its reliable simulation in numerical models of weather and climate. Four papers in this thesis contribute to that objective, utilising a combination of high temporal resolution satellite data and global atmospheric reanalyses for June – August 2004 – 2010 inclusive. The first paper develops an objective dust detection scheme for the CWS using data from the Spinning Enhanced Visible and Infrared Imager (SEVIRI), which are available every 15 minutes around the clock. These data have shed valuable insight on CWS dust processes, but their subjective application has to date limited their range of applications. The SEVIRI dust flag (SDF) developed here is evaluated against other widely used surface and satellite derived indicators of dustiness and it is found to reliably detect the presence of moderate-heavy dust loadings. The distribution of dust each summer is presented, revealing a high degree of interannual variability in overall dust coverage. The second paper utilises SDF to create an objective, high spatial resolution dust source map, based on the automated tracking of individual dust plumes. The most active sources are associated predominantly with palaeo-lakes and outwash plains, typically around the Saharan mountains. There is a clear intraseasonal progression of active source areas, controlled by regional climatology. The tracking scheme describes the transport trajectory of dust events following their initiation and the spatial association with deep convection at this time, revealing a clear regional divide in the relative importance of known meteorological mechanisms that drive dust emission from the dominant sources. The third paper uses an unsupervised clustering algorithm to classify maps of daily dust presence frequency and identify patterns of intraseasonal variability in CWS dust coverage. The resulting idealised dust states vary according to frequency of dust occurrence and its location, demonstrating a clear progression in preferred dust location from June – August and preferred state transitions from one day to the next. High daily dust occurrence frequency corresponds to an advanced West African Monsoon flow and low daily dust occurrence frequency corresponds to a Harmattan-dominated CWS. The overall location of the dust is linked to the location of the Sahara Heat Low, which changes as the summer progresses. The final paper addresses interannual variability in summertime dust presence frequency by comparing the 2 years with highest (2005) and lowest (2008) dust presence. The key difference is the occurrence of 3 multi-day periods in 2005 characterised by anomalously high dust presence. Case study comparison with the 3 periods of highest dust presence in 2008 identifies the anticyclonic circulation of the midtroposphere as a key control on dust duration over the CWS, dictating whether emitted dust is efficiently transported away from the CWS or whether it remains in suspension over the region for prolonged periods of time, up to several days in the anomalously dusty periods of 2005.
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Ciminelli, Jennifer M. "A GIS and Remote Sensing Based Analysis of Impervious Surface Influences on Bald Eagle (Haliaeetus leucocephalus) Nest Presence in the Virginia Portion of the Chesapeake Bay." VCU Scholars Compass, 2006. http://hdl.handle.net/10156/1928.
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Noble, Frazer K. "Wireless vehicle presence detection using self-harvested energy : a thesis in partial fulfilment of the requirements for the degree of Master of Engineering in Mechatronics, Massey University, Albany, New Zealand." Massey University, 2009. http://hdl.handle.net/10179/1078.
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Rising from the “excess demand” modern societies and economies place on limited road resources, congestion causes increased vehicle emissions, decreases national efficiency, and wastes time (Downs, 2004). In order to minimise congestion’s impacts, traffic management systems gather traffic data and use it to implement efficient management algorithms (Downs, 2004). This dissertation’s purpose has been the development of a distributable vehicle presence detection sensor, which will wirelessly provide vehicle presence information in real time. To address the sensor’s wireless power requirements, the feasibility of self-powering the device via harvested energy has been investigated. Piezoelectric, electrostatic, and electromagnetic energy harvesting devices’ principles of operation and underlying theory has been investigated in detail and an overview presented alongside a literature review of previous vibration energy harvesting research. An electromagnetic energy harvesting device was designed, which consists of: a nylon reinforced rubber bladder, hydraulic piston, neodymium magnets, and wire-wound coil housing. Preliminary testing demonstrated a harvested energy between 100mJ and 205mJ per axle. This amount is able to be transferred to a 100O load when driven over at speeds between 10km/h and 50km/h. Combined with an embedded circuit, the energy harvester facilitated the development of a passive sensor, which is able to wirelessly transmit a vehicle’s presence signal to a host computer. The vehicle detected event is displayed via a graphical user interface. Energy harvesting’s ability to power the embedded circuit’s wireless transmission, demonstrated the feasibility of developing systems capable of harvesting energy from their environment and using it to power discrete electronic components. The ability to wirelessly transmit a vehicle’s presence facilitates the development of distributable traffic monitoring systems, allowing for remote traffic monitoring and management.
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Ha, Jung-Im. "La migration des étudiants coréens en France. Liens familiaux et circulation du care : investissements des parents, dettes des enfants." Thesis, Paris, EHESS, 2019. http://www.theses.fr/2019EHES0151.
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Le changement des circonstances infrastructurelles et économiques dans les années 2000 ont fait évoluer large-ment les caractéristiques et les projets d'études des étudiants coréens en France. Dans le cadre d'une ethnographie des parcours biographiques d'étudiants coréens en France (trente entretiens entre 2011 et 2015) et de leurs fa-milles en Corée du Sud (vingt cas, l'été 2012 et 2014), cette thèse restitue l'analyse de la comparaison de groupes d'étudiants coréens selon le moment de l'arrivée en France entre 2000 et 2010. Il s'agit de déterminer les évolutions des rapports des étudiants avec leur famille, les modalités de soutien et les projets de vie, entre ces deux groupes à partir de la classe, du sexe, de l'âge et du type d'études. Dans le cadre transnational, l'expérience de la distance incite à se rapprocher pour maintenir une relation familiale grâce aux nouvelles technologies de la communication et accentue le dynamisme du soutien affectif. Au lieu de la double absence proposée par Sayad, aujourd'hui, la période "transitoire" de la migration étudiante entraîne une double présence matérielle et émo-tionnelle, tout au long du séjour à l'étranger. D'un côté, les soutiens familiaux s'adaptent ou subissent des modifications. D'un autre côté, le séjour prolongé, le rythme temporel autogéré et des repères identifiés comme possibles contribuent à déclencher des projets de vie migratoire. Cette recherche est une occasion de faire le point pour aborder les obligations morales et pratiques qui doivent advenir, ce que nous appelons le care différé, à la fois care "temporalisé", "à retardement", mais toujours "à distance"The change in infrastructural and economic circumstances in the 2000s has largely changed the characteristics and educational plans of Korean students in France. As part of an ethnography of the biographical pathways of Korean students in France (thirty interviews between 2011 and 2015) and their families in South Korea (twenty cases, summer 2012 and 2014), this thesis restores the analysis of the comparison of groups of Korean students according to the time of arrival in France between 2000 and 2010. It is a question of determining the evolution of students relationships with their family, the modalities of support and the projects of life, between these two groups based on class, gender, age and type of education. In the transnational context, the experience of distance encourages us to come together to maintain a family relationship thanks to new communication technologies and accentuates the dynamism of emotional support. Instead of the dual absence proposed by Sayad, today, the "tran-sitional" period of student migration entails a double material and emotional presence throughout the stay abroad. On the one hand, family supports adapt or undergo modifications. On the other hand, the extended stay, the self-managed temporal rhythm and the markers identified as possible contribute to trigger migratory life projects. This research is an opportunity to take stock to address the moral and practical obligations that must occur, what we call delayed care, both care "temporal", "delayed", but always "remote"
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Hidinger, Kristen B. "A Phenomenology of Peer Interaction and Community in Accelerated Online Learning." Bowling Green State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1594729181918153.
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Topsakal, Julide Julie. "Robust Motion Planning in the Presence of Uncertainties using a Maneuver Automaton." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6904.
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One of the basic problems which have to be solved by Unmanned Automated Vehicles (UAV) involves the computation of a motion plan
that would enable the system to reach a target given a set of initial conditions in presence of uncertainties on the vehicle dynamics and in the environment. Recent research efforts in this
area have relied on deterministic models. To address the problem of inevitable uncertainties, a low-level control layer is typically used to ensure proper robust trajectory tracking. Such
decision-tracking algorithms correct model disturbances a posteriori, while the whole movement planning is done in a purely
deterministic fashion.
We argue that the decision making process that takes place during movement planning, as performed by experienced human pilots, is not
a purely deterministic operation, but is heavily influenced by the presence of uncertainties and reflects a risk-management policy. This research aims at addressing these uncertainties and developing an optimal control strategy that would account for the presence of
system uncertainties.
The underlying description of UAV trajectories will be based on a modeling language, the Maneuver Automaton, that takes into full
account the vehicle dynamics, and hence guarantees flyable and trackable paths and results in a discretized solution space. Two
optimal control problems, a nominal problem omitting uncertainties and a robust problem addressing the presence of uncertainties,
will be defined and compared throughout this work. The incorporation of uncertainties, will ensure that the generated motion planning policies will maximize the probability to meet
mission goals, weighing risks against performance.
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Wang, Yujia. "Assessing Bald Cypress (Taxodium distichum) Tree Dynamic Change in USF Forest Preserve Area Using Mixture-Tuned Matched Filtering and Multitemporal Satellite Imagery." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7375.
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Wetlands are the most important and valuable ecosystems on Earth. They are called “kidneys of the Earth”. Vegetation change detection is necessary to understand the condition of a wetland and to support ecosystem sustainable management and utilization. It has been a great challenge to estimate vegetation (including bald cypress trees) coverage of the wetland because it is difficult to access directly. Satellite remote sensing technology can be one important feasible method to map and monitor changes of wetland forest vegetation and land cover over large areas. Remote sensing mapping techniques have been applied to detect and map vegetation changes in wetlands. To address spectral mixture issues associated with moderate resolution remote sensing images, many spectral mixture methods have been developed and applied to unmix the mixed pixels in order to accurately map endmembers (e.g., different land cover types and different materials within pixels) fractions or abundance. Of them, Mixture Tuned Matched Filtering (MTMF) is an advanced spectral unmixing method that has attracted many researchers to test it for mapping land cover types including mapping tree species with medium or coarse remote sensing image data. MTMF is a partial unmixing method that suppresses background noise and estimates the subpixel abundance of a single target material. In this study, to understand impacts of anthropogenic (e.g., urbanization) and natural forces/climate change on the bald cypress tree dynamic change, the bald cypress trees cover change in University of South Florida Forest Preserve Area was mapped and analysed by using MTMF tool and multitemporal Landsat imagery over 30 years from 1984 to 2015. To evaluate the MTMF’s performance, a tradition spectral unmixing method, Linear Spectral Unmixing (LSU), was also tested. The experimental results indicate that (1) the bald cypress tree cover percentage in the study area has generally increased during the 30 years from 1984 to 2015, but over the time period from 1994 to 2005, the bald cypress tree cover percentage reduced; (2) MTMF tool outperformed the LSU method in mapping the change of the bald cypress trees over the 30 years to demonstrate its powerful capability; and (3) there potentially exists an impact of human activities on the change of the bald cypress trees although a further quantitative analysis is needed in the future research.
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Lee, Chin Siong. "NPS AUV workbench: collaborative environment for autonomous underwater vehicles (AUV) mission planning and 3D visualization." Thesis, Monterey, California. Naval Postgraduate School, 2004. http://hdl.handle.net/10945/1658.
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Approved for public release, distribution is unlimitedalities. The extensible Markup Language (XML) is used for data storage and message exchange, Extensible 3D (X3D) Graphics for visualization and XML Schema-based Binary Compression (XSBC) for data compression. The AUV Workbench provides an intuitive cross-platform-capable tool with extensibility to provide for future enhancements such as agent-based control, asynchronous reporting and communication, loss-free message compression and built-in support for mission data archiving. This thesis also investigates the Jabber instant messaging protocol, showing its suitability for text and file messaging in a tactical environment. Exemplars show that the XML backbone of this open-source technology can be leveraged to enable both human and agent messaging with improvements over current systems. Integrated Jabber instant messaging support makes the NPS AUV Workbench the first custom application supporting XML Tactical Chat (XTC). Results demonstrate that the AUV Workbench provides a capable testbed for diverse AUV technologies, assisting in the development of traditional single-vehicle operations and agent-based multiple-vehicle methodologies. The flexible design of the Workbench further encourages integration of new extensions to serve operational needs. Exemplars demonstrate how in-mission and post-mission event monitoring by human operators can be achieved via simple web page, standard clients or custom instant messaging client. Finally, the AUV Workbench's potential as a tool in the development of multiple-AUV tactics and doctrine is discussed.
Civilian, Singapore Defence Science and Technology Agency
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Wilder, Jason. "Modeling malaria transmission risk using satellite-based remote sensing imagery a five-year data analysis in Democratic People's Republic of Korea : a thesis presented to the Department of Geology and Geography in candidacy for the degree of master of science /." Diss., Maryville, Mo. : Northwest Missouri State University, 2007. http://www.nwmissouri.edu/library/theses/WilderJason/index.htm.
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Thesis (M.S.)--Northwest Missouri State University, 2007.The full text of the thesis is included in the pdf file. Title from title screen of full text.pdf file (viewed on January 25, 2008) Includes bibliographical references.
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Kemp, Matthew L. "Characterizing the Depositional History of Three Ponds, Bath Nature Preserve, Bath, Ohio." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1270834695.
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Ogunleye, Lawrence Olawale. "A techno-economic appraisal of renewable energy in remote, off grid locations in Nigeria : Obudu ranch as a case study / L. Olawalemi Ogunleye." Thesis, North-West University, 2008. http://hdl.handle.net/10394/2559.
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Energy is central to economic development. It has been established that there is a clear correlation between energy consumption and living standards. Nigeria is a country of very industrious and enterprising people. However, due to non availability of adequate energy in the country, especially in the remote, off grid locations, the entrepreneurial inclination of the average Nigerian living in these locations has been largely stunted.
Over the years, successive governments in the country, in realisation of the pivotal role of energy in national development, have explored various options to improve energy supply and availability, but the situation has not experienced any remarkable improvement. This has forced many businesses and households to resort to self provision through generators, often at exorbitant costs.
This research work addresses the challenge of energy in remote, off grid locations by appraising the techno economic potential of renewable energy, using Obudu Ranch as a case study. This ranch is the foremost tourism resort in Nigeria, and has played host to a number of international events over the years. Presently, electricity is being generated through the use of diesel powered generating sets. The adjoining communities are currently without electricity, although a few of the residents have acquired generators for self provision, mostly for their domestic use. Aside the high cost associated with this, the discharge of noxious contaminants into the atmosphere is undesirable.
The research entailed a working collaboration with some notable Non Governmental Organisations (NGOs) that have done extensive ground work in the area for access to some secondary data, as well as a number of corporate and governmental agencies that are relevant to the study.
Further, the ranch was visited to establish hands-on, the existing renewable energy sources. A trade-off of these sources was carried out with reference to a number of relevant evaluation parameters to identify the most suited option for addressing the energy challenge. A comparative analysis of this selected source was then made to establish its techno economic potential against the existing source of power generation- diesel powered generating sets, which currently costs R1.5 million annually in running expenses.
The findings from this research have established that a Renewable Energy source (mini hydro) is a more cost effective option than the diesel powered gen set, providing a 43% reduction in cost of energy generation, and a 42% reduction in the life cycle cost over the five year of analysis, compared to the status quo. In addition, it is also more environmentally friendly.
Conclusively, the findings and recommendations of this research effort, if well implemented, will be beneficial to the ranch, the adjoining communities and other relevant stakeholders.Thesis (M.Ing. (Development and Management Engineering))--North-West University, Potchefstroom Campus, 2009.
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Rosado, Francisca Gabriela Lopes. "Aplica??o da ozoniza??o e de processos oxidativos avan?ados na degrada??o dos f?rmacos paracetamol e dipirona presentes em efluentes aquosos simulados." UFVJM, 2014. http://acervo.ufvjm.edu.br/jspui/handle/1/814.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes)
Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG)
A oxida??o de efluentes sint?ticos contendo os f?rmacos paracetamol (PCT) e dipirona (DPN), ambos analg?sicos largamente utilizados por humanos e animais foi conduzida pelos processos O3, O3/UV, H2O2/UV e H2O2/UV/O3 via rea??o direta (oz?nio molecular), indireta (radical hidroxila) e mista (O3/HO?) manipulando-se o pH do meio reacional. Essas subst?ncias tem grande resist?ncia aos processos convencionais de tratamento de efluentes e, assim buscam-se ferramentas mais eficientes para a degrada??o desses f?rmacos. A remo??o dos f?rmacos PCT e DPN nas amostras tratadas com os diferentes POA foi monitorada utilizando a t?cnica cromatografia l?quida de alta efici?ncia (HPLC). A quantidade total de compostos arom?ticos e o grau de mineraliza??o da mat?ria org?nica dissolvida foram avaliados por meio dos par?metros UV (254 nm), Demanda Qu?mica de Oxig?nio (DQO) e de Carbono Org?nico Total (COT). Al?m disso, a susceptibilidade a biodegradabilidade foi avaliada por meio da raz?o da DQO/COT. Os resultados experimentais mostraram que o tempo gasto para a degrada??o depende da natureza do f?rmaco, bem como do pH e do tipo de processo oxidativo. Verificou-se uma elevada percentagem de remo??o (95%) e um percentual moderado de mineraliza??o (35%) para os estudos utilizando os processos O3 (pH 12) e O3/UV. De um modo geral, verificou-se um aumento da biodegradabilidade das amostras tratadas para os diferentes tratamentos oxidativos. No caso dos processos H2O2/UV e H2O2/UV/O3 a remo??o dos f?rmacos foi alta, especialmente no caso do processo H2O2/ UV/O3 onde ap?s 45 min e dose de 200 ppm de per?xido obteve-se ?88% de remo??o dos f?rmacos. No caso do processo H2O2(800ppm)/O3/UV e para o f?rmaco PCT, verificou-se percentagens de remo??o de DQO e COT de 77% e 42%, respectivamente. J? para o f?rmaco DPN, os valores correspondentes obtidos foram de 70% e 68%, respectivamente. Analisando os resultados observou-se que a remo??o da DQO e do COT foi maior para os processos processo H2O2/UV/O3. Por outro lado, a maior remo??o das subst?ncias parentais (PCT e DPN) foi obtida utilizando o processo O3 (pH 12). A partir dos valores das constantes de velocidade em fun??o do pH estimou-se a contribui??o dos processos de oxida??o por via direta e indireta. De um modo geral, o estudo revelou que o uso dos presentes POA e/ou ozoniza??o pode constituir um processo de tratamento alternativo vi?vel para a remo??o/degrada??o dos f?rmacos PCT e DPN presente em ?guas contaminadas.
Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Qu?mica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2014.
ABSTRACT The oxidation of synthetic wastewaters containing the drugs Acetaminophen (PCT) and Dipyrone (DPN), which are analgesics of widespread use by the human being and animals, was carried out by means of the O3, O3/UV, H2O2/UV e H2O2/UV/O3 oxidative processes. The ?direct? oxidation process was promoted by action of the O3 (acidic solutions) while in the case of the ?indirect? processes the application of the Advanced Oxidation Processes (AOPs) has permitted the use of the hydroxyl radical (HO?) as the major oxidant. These substances are recalcitrant towards the conventional wastewater treatments and, therefore, the search for an efficient treatment for these effluents is of current interest. The removal of PCT and DPN in the treated samples using the different AOPs was monitored using the high performance liquid chromatography (HPLC) technique. The total amount of aromatics and the degree of mineralization of the dissolved organic matter were evaluated by means of the UV(254 nm) technique and the Chemical Oxygen Demand (COD) and Total Organic Carbon (COT) methods, respectively. In addition, biodegradability susceptibility was evaluated by means of the COD/TOC ratio. The experimental findings showed that the time spent for degradation depends on the nature of the drug, as well as on the pH and the type of the oxidative process. It was verified for the studies using the O3(pH 12) and O3/UV processes a high percentage of removal (95%) and a moderate percentage of mineralization (35%). On the whole, it was verified an increase in the biodegradability of the treated samples for the different oxidative treatments. In the case of the H2O2/UV and H2O2/UV/O3 processes the removal of PCT and DPN was high, especially in the case of the H2O2/UV/O3 where after 45 min and by using a peroxide dosage of 200 ppm a percentage of removal of ?88% was obtained. In the case of the H2O2(800ppm)/UV/O3 process and for PCT, it was verified percentages of removal for COD and COT of 77% and 42%, respectively. Accordingly, the corresponding values obtained for DPN were 70% and 68%, respectively. As a rule, the removal of COD and COT was higher for the H2O2/UV/O3 process. On the contrary, a higher removal (e.g., HPLC) of the parental substances (PCT and DPN) was obtained using the O3 (pH 12) process. In the case of the ozonation the contribution of the direct and indirect oxidation processes was evaluated from the values of the pseudo first-order rate constants obtained in the acidic and alkaline conditions. On the whole, the current study has revealed that the use of the present AOPs and/or ozonation can constitute a viable alternative treatment process for the removal/degradation of the PCT and DPN drugs present in contaminated waters.
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del, Río Camilo [Verfasser], and Alexander [Akademischer Betreuer] Siegmund. "Spatiotemporal characteristics of coastal fog in the Atacama Desert. A remote sensing based analysis of the past, present and future distribution and variability of low clouds under climate change in a hyper-arid region of northern Chile / Camilo del Río ; Betreuer: Alexander Siegmund." Heidelberg : Universitätsbibliothek Heidelberg, 2020. http://d-nb.info/1206187913/34.
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Bracco, Haulet Manuella. "Pratiques de la communication médiée à distance et en co-présence dans le cadre du travail collaboratif." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAL015.
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Cette thèse a pour objectif de comprendre l’articulation des TIC dans l’activité communicationnelle des organisations. Ce qui nous intéresse, est d’analyser comment l’usage des objets mettent en relation, en tension les acteurs dans l’action collective. L’objectif étant d’analyser comment le travail de coopération se construit à travers l’usage des TIC. Il s’agira de saisir les règles et les mécanismes de l’ordre social dans les actes de communication médiée par ordinateur et de cerner la manière dont l’usager négocie ses interactions dans les relations d’interdépendance que suppose le travail collectif.Notre problématique est de comprendre comment le salarié s’approprie les technologies pour communiquer ? Comment il négocie dans ses interactions au sein de micros-réseaux ? Quels sont les rôles qu’il s’attribue dans la théâtralisation de lui-même ?Notre travail de recherche s’inscrit dans le champ de la communication des organisations et plus précisément dans l’étude des approches communicationnelles de la communication médiée par ordinateur au sein des organisations.Ce qui nous intéresse dans notre étude est de saisir, l’articulation entre TIC et travail coopératif, c’est-à-dire de comprendre comment les salariés ajustent leurs usages des technologies pour reconstruire des systèmes de coopération à partir des outils mis à leur dispositionThis thesis has for objective to understand the joints of information and communication technologies in the communication activity organizations. What interests us, is to analyze how the use of objects put in relation, in tension, the actors in the collective action. The objective being to analyze how the work of cooperation builds itself through the use information and communication technology. It will be a question of seizing rules and mechanisms of the social order in the acts of communication mediatized by computer and of encircling well the way the user negotiates his interactions in the relations of interdependence which supposes the collective work.Our problem is to understand how the employee appropriates information and communication technologies? How he negotiates in his interactions within microcomputing- networks? What are the roles that he appropriates in the dramatization of himself?Our research work joins in the field of the communication of organizations and more exactly in the study of the communication approaches of the communication mediatized by computer within organizations.What interests us in our study is to seize, the joint between information and communication technologies and cooperative Work, that is to understand how the employees adjust their practices information and communication technologies to reconstruct systems of cooperation from tools arrangement
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von, Wenckstern Michael. "Web applications using the Google Web Toolkit." Master's thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-115009.
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This diploma thesis describes how to create or convert traditional Java programs to desktop-like rich internet applications with the Google Web Toolkit. The Google Web Toolkit is an open source development environment, which translates Java code to browser and device independent HTML and JavaScript. Most of the GWT framework parts, including the Java to JavaScript compiler as well as important security issues of websites will be introduced. The famous Agricola board game will be implemented in the Model-View-Presenter pattern to show that complex user interfaces can be created with the Google Web Toolkit. The Google Web Toolkit framework will be compared with the JavaServer Faces one to find out which toolkit is the right one for the next web projectDiese Diplomarbeit beschreibt die Erzeugung desktopähnlicher Anwendungen mit dem Google Web Toolkit und die Umwandlung klassischer Java-Programme in diese. Das Google Web Toolkit ist eine Open-Source-Entwicklungsumgebung, die Java-Code in browserunabhängiges als auch in geräteübergreifendes HTML und JavaScript übersetzt. Vorgestellt wird der Großteil des GWT Frameworks inklusive des Java zu JavaScript-Compilers sowie wichtige Sicherheitsaspekte von Internetseiten. Um zu zeigen, dass auch komplizierte graphische Oberflächen mit dem Google Web Toolkit erzeugt werden können, wird das bekannte Brettspiel Agricola mittels Model-View-Presenter Designmuster implementiert. Zur Ermittlung der richtigen Technologie für das nächste Webprojekt findet ein Vergleich zwischen dem Google Web Toolkit und JavaServer Faces statt
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Nanzer, Jeffrey A. (Jeffrey Allan). "Human presence detection using millimeter-wave radiometry." Thesis, 2008. http://hdl.handle.net/2152/3961.
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A novel method of human presence detection using passive millimeter-wave sensors is presented. The method focuses on detecting a standing human from a moving platform in a cluttered outdoor environment using millimeter-wave radiometry, which has not been attempted before. Ka-band radiometers are used in total power mode as well as correlation mode, which ideally responds well to self-luminous objects such as humans. The intrinsic radiative power from a human is derived as well as the responses of the total power and correlation mode. The application of correlation radiometer theory to the detection of self-luminous objects at close range is presented in the context of human presence detection. Modifications and additions to techniques developed in radio astronomy and remote sensing for close range terrestrial situations are developed and discussed. The correlation radiometer fringe frequency is analyzed in the context of the scanning beam detection system and is estimated using MUSIC and ESPRIT. Detection and classification of humans is accomplished using a Naïve Bayesian classifier. The performance of the classifier is measured using the F1-measure and the receiver operating characteristic.text
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Jorge, Clinton Luis. "Remote presence: supporting deictic gestures through a handheld multi-touch device." Master's thesis, 2011. http://hdl.handle.net/10400.13/474.
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This thesis argues on the possibility of supporting deictic gestures through handheld multi-touch devices in remote presentation scenarios. In [1], Clark distinguishes indicative techniques of placing-for and directing-to, where placing-for refers to placing a referent into the addressee’s attention, and directing-to refers to directing the addressee’s attention towards a referent. Keynote, PowerPoint, FuzeMeeting and others support placing-for efficiently with slide transitions, and animations, but support limited to none directing-to. The traditional “pointing feature” present in some presentation tools comes as a virtual laser pointer or mouse cursor. [12, 13] have shown that the mouse cursor and laser pointer offer very little informational expressiveness and do not do justice to human communicative gestures. In this project, a prototype application was implemented for the iPad in order to explore, develop, and test the concept of pointing in remote presentations. The prototype offers visualizing and navigating the slides as well as “pointing” and zooming. To further investigate the problem and possible solutions, a theoretical framework was designed representing the relationships between the presenter’s intention and gesture and the resulting visual effect (cursor) that enables the audience members to interpret the meaning of the effect and the presenter’s intention.
Two studies were performed to investigate people’s appreciation of different ways of presenting remotely. An initial qualitative study was performed at The Hague, followed by an online quantitative user experiment. The results indicate that subjects found pointing to be helpful in understanding and concentrating, while the detached video feed of the presenter was considered to be distracting. The positive qualities of having the video feed were the emotion and social presence that it adds to the presentations. For a number of subjects, pointing displayed some of the same social and personal qualities [2] that video affords, while less intensified.
The combination of pointing and video proved to be successful with 10-out-of-19 subjects scoring it the highest while pointing example came at a close 8-out-of-19. Video was the least preferred with only one subject preferring it.
We suggest that the research performed here could provide a basis for future research and possibly be applied in a variety of distributed collaborative settings.Universidade da Madeira - Madeira Interactive Technologies Institute
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Ten, Chang A., and 張阿丹. "Research in the Present Execution of Reading Instruction in Elementary School in Remote Areas in Kaohsiung County." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/pz6z46.
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碩士國立臺東大學
教育學系(所)
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Abstract This research aimed to understand the present execution of reading instruction in elementary schools in remote areas in Kaohsiung County. It consisted of the organization of reading instruction of administrations, the execution of reading instruction by homeroom teachers, problems and resolutions of schools while giving impetus to reading instruction. The conclusion and suggestions were offered to the educational administrations, school administrations and homeroom teachers as the reference to improve the instruction. This research consisted of 48 Directors of Academic and Student Affairs and 320 homeroom teachers as subjects, and was done through the questionnaire. The investigation data was analyzed through frequency distribution and percentile statistics, and it is expected to understand the execution of reading instruction in remote areas in Kaohsiung County. The conclusion of this research was done by aiming at the organization of reading instruction of administrations in elementary schools in remote areas in Kaohsiung County, execution of reading instruction by homeroom teachers, problems and coping strategies of schools to give impetus to reading instruction. Finally, the difficulty and coping strategies were analyzed by aiming at the present administrative measures of reading instruction and present situation of reading instruction.
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Oleson, Jay W. "An analysis of classifications generated from data with spatial resolutions similar to present and future remote sensing systems." 1985. http://catalog.hathitrust.org/api/volumes/oclc/12829790.html.
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Thesis (M.S.)--University of Wisconsin--Madison, 1985.Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 195-196).
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"An assessment of present and historical (1984-2012) Lake Diefenbaker water clarity and chlorophyll-a concentration using Landsat imagery." Thesis, 2014. http://hdl.handle.net/10388/ETD-2014-12-1845.
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Abstract: The use of earth observing satellites can be an effective supplement or alternative to traditional field sampling. The Landsat series of satellites have been particularity useful in assessing water quality in lakes, oceans, and reservoirs. This study utilized Landsat 5 and 7 imagery to model Secchi disk depth (SDD) and chlorophyll-a concentrations (Chl-a) at Lake Diefenbaker, Saskatchewan. I used data from these Landsat satellites to answer the following questions: First, can models that predict water quality (SDD and Chl-a concentration) be developed for Lake Diefenbaker using Landsat imagery? Second, can these models identify trends that have taken place at the reservoir from 1984-2012? Third, can I determine if ephemeral events like algal blooms or flooding have an effect on the reservoir? Novel models were developed from data collected in 2011 and 2012 that could predict SDD and Chl-a concentrations in the reservoir (linear regression, model I). These models explain less variation than comparable studies, but the loss in explanatory power is made up by their ability to predict data from any Landsat image of the reservoir. My study showed that predicted SDD and Chl-a concentration were positively related, an atypical relationship in freshwater systems. During the archive study period (1984-2012), both mean seasonal SDD and mean seasonal Chl-a have significantly decreased throughout the reservoir (p<0.05, regime-shift analysis). Spatially, the greatest decrease in SDD was closest to the major inflow the SSR, while downstream areas in the reservoir have decreased minimally. There was a decline in Chl-a concentrations that was spatially consistent throughout the reservoir. There was a significant negative relationship between flow rate and both water clarity and Chl-a concentrations (P<0.05, model II linear regression). Algal blooms occurred sporadically throughout the study period. There were blooms in 9% of images analyzed. Blooms typically occurred in the Qu’Appelle arm of the reservoir in the late summer and fall. The water quality data extracted by this study can be useful to many future studies, as historical data is absent for much of the reservoir’s history.
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LIN, JUN-LU, and 林俊錄. "The application of photogrammetry and remote sensing techinques in ecological resources conservation:studies on the changes of vegetation in hoyenshan nature preserve." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/24724080879418358578.
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Henriques, Ricardo Filipe Querido. "Desenvolvimento de um sistema de monitorização remota do consumo de energia elétrica e da presença humana em edifícios." Master's thesis, 2012. http://hdl.handle.net/10451/9093.
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Tese de mestrado integrado em Engenharia da Energia e do Ambiente , apresentada à Universidade de Lisboa, através da Faculdade de Ciências, 2012O atual cenário energético mundial, quer ao nível económico quer ambiental, tem alterado a forma como o consumidor encara a utilização dos recursos. Como consequência a população está mais sensibilizada para a gestão da energia utilizada nos edifícios convencionais. No caso da energia elétrica, o controlo típico dos consumos efetuados tem muito pouco detalhe, sendo difícil estabelecer relações de causa efeito entre os valores de energia consumida e a própria origem desse consumo. No caso particular da eletricidade, os sistemas de monotorização energética apresentam-se como a solução capaz de revelar ao utilizador dos edifícios a real evolução dos próprios consumos, passando a ser possível identificar eventuais pontos de ineficiência e potenciais medidas de redução do consumo elétrico. Por outro lado, a monitorização em simultâneo com outros parâmetros, como por exemplo a presença humana em edifícios, permite uma melhor avaliação da relação existente entre ocupação e consumo. A grande variedade de dispositivos eletrónicos disponíveis no mercado a baixo custo e com níveis de qualidade exigida, permitem o desenvolvimento deste tipo de sistemas de monitorização, podendo ser uma boa alternativa aos equipamentos comerciais existentes. Além disso, muitos destes dispositivos funcionam segundo o princípio do open source, sendo possível utilizar e aceder a muita informação de forma livre. O propósito desta tese visa desenvolver e testar um sistema capaz de monitorizar o consumo de energia elétrica, bem como detetar a presença humana em edifícios. O sistema inclui comunicação sem fios, desenvolvimento de uma interface no computador para visualização dos dados em tempo real, armazenamento e partilha na internet dos dados recolhidos.
The actual world energy scenario, either economic or environmental, has been changing the way as the consumers face the use of resources. As a consequence people are getting aware of managing the energy consumption in buildings. In the case of electric energy the typical consumption control is done with low detail, thus it is difficult to establish cause-effect relationship between values of energy consumed and its origin. The energy monitoring systems are presented as a solution capable to reveal to consumers the real consumption evolution, making possible to identify inefficient aspects and energy reduction measures. On the other hand, simultaneous monitoring with other parameters such as human presence in buildings, allows a better evaluation of occupation and consumption linkage. A wide variety of electronic devices are available in the market at low cost and high quality level enabling the development of this monitoring systems, which can be a good alternative to the existent commercial equipment. Moreover, many of this devices work through open source principle, existing a lot of information to access and use freely. The purpose of this thesis is to develop and test a system capable to monitor the electrical energy consumption and detect human presence in buildings. The system includes wireless communication, development of one computer interface to observe the real time data, storage and sharing the data collected on internet.
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"Automated detection of prehistoric conical burial mounds from LiDAR bare-earth digital elevation models a thesis presented to the Department of Geology and Geography in candidacy for the degree of Master of Science /." Diss., Maryville, Mo. : Northwest Missouri State University, 2009. http://www.nwmissouri.edu/library/theses/RileyMelanie/ThesisFinal.pdf.
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Thesis (M.S.)--Northwest Missouri State University, 2009.The full text of the thesis is included in the pdf file. Title from title screen of full text.pdf file (viewed on July 17, 2009) Includes bibliographical references.
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Agyemang, Thomas Kwaku [Verfasser]. "Development of assessment tools for Lake Sevan (Armenia) by the application of remote sensing data and geographic information systems (GIS) techniques / presented by Agyemang Thomas Kwaku." 2010. http://d-nb.info/1011308754/34.
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Towers, Andrew James. "Consolidating mistakes of the heart and mind : toward a dual process theory of regret : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Psychology at Massey University, Palmerston North, New Zealand." 2009. http://hdl.handle.net/10179/1226.
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There are many idiosyncrasies in the emotion of regret that we do not fully comprehend and our traditional reliance on economic theories of human decision-making, which view regret as stemming from illogical and explicit decision-making processes, may be the cause. This thesis explores the development and testing of the Dual Process Theory of Regret (DPTR) which claims that individuals use both implicit ‘orientation’ and explicit ‘justification’ systems of thought to guide their daily decision-making and the differential use of these systems should be reflected in the intensity of regret felt for a poor outcome. To assess its utility in predicting variation in regret intensity the DPTR was tested in conjunction with two popular theories of regret; one focussing on the distinction between actions and inaction, and the other focussing on decision justification. Three thousand adults were randomly selected from the New Zealand electoral roll and invited to participate in a postal survey of short and long-term life regrets. Of this initial sample 653 participants returned questionnaires with usable data, a response rate of approximately 23% which, while a relatively low response rate, was expected given the sensitive topic and provided more than enough respondents for the present analysis. Results showed that the DPTR had greater utility in predicting trends in short and long-term regret intensity than either of the current regret theories. Results also illustrated that changes in justification strength had little effect on regret intensity and that explicit justifications only influenced regret in the long-term. In contrast results supported the conceptualisation of the implicit orientation and showed that it was a key source of influence on regret intensity in both the short and long-term. This research concludes that the DPTR’s focus on both implicit and explicit cognitive systems provides greater insight into the nature of regret than the reliance on explicit cognitive analysis alone. Implicit feelings of right and wrong are a better indicator of eventual regret than our ability to justify our decision. These results help resolve past anomalies in regret research, clarify conflicting trends in regret highlighted in the current media, and have application for understanding criminal recidivism.
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Savitri, Endang. "The use of GIS and remote sensing to identify areas at risk from erosion in Indonesian forests : a case study in central Java : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Natural Resource Management at Massey University, Palmerston North, New Zealand." 2006. http://hdl.handle.net/10179/1506.
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Environmental degradation and soil erosion begins when production forests are harvested. Unfortunately, logging cannot be avoided in plantation forests and since this operation can render the land more susceptible to erosion, any negative impacts need to be addressed properly. Erosion potential is predicted by evaluating the response of land cover, soil and slope to the impact of rainfall and human activities. The role of remote sensing and geographical information systems (GIS) in erosion prediction is to collect information from images and maps; combine and analyse these data so that it is possible to predict the erosion risk. The objective of this study was to produce a method to identify areas most susceptible to erosion and predict erosion risk. It is intended that the method be used particularly by forestry planners and decision makers so that they can improve forest management, especially during logging. The study area was within Kebumen and Banjarnegara districts of Central Java, Indonesia. Imagery used included a Landsat 7 satellite image (28th April 2001) and panchromatic aerial photos (5th July 1993). Other data was derived from topographical, soil, and geological maps, and 10 years of daily rainfall data from 17 rainfall stations. Predicting erosion in this study was done by combining rainfall, slope, geology, and land cover data. The erosion risk was predicted using land cover and soil type and depth. A rainfall map was generated using a thin plate spline method. A slope map was derived from a DEM which was generated by digitizing contours and spot heights from topographic maps. A geological map was derived from Landsat image classification with assistance from a 1:100000 scale geological map; and a land cover map was produced from an interpretation of the Landsat image and aerial photographs. A stratified classification technique was used to delineate land covers in the study area with an accuracy of 44%. The low accuracy could be attributed to the complexity of the area and the temporal variation in the data acquisition. The analysis of erosion risk showed that mixed forests and monotype forest experienced high and moderately high erosion risk. This condition supported the contention that harvest plans must incorporate soil conservation measures.