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1
Backlund, Tomas. "Overtake assistance." Thesis, Linköpings universitet, Fordonssystem, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-59988.
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This thesis is about the development of a function that assists the driver of a heavy vehicle to do an estimation over the possibilities to overtake a preceding heavy vehicle. The function utilizes Look-Ahead and vehicle-to-vehicle communication to do a calculation of the distance between the vehicles in some road distance ahead. Consequently the report also contains an investigation of what data that is needed to be known about a vehicle to be able to do a satisfying estimation about this vehicle. The most vital problem is to estimate what velocity the vehicle will get in an uphill/downhill slope. A Simulink model is developed to simulate the function with two independent vehicles. Real tests are also performed to evaluate the velocity estimation part of the function.
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Parienté, Isabelle. "Assistance et assurance." Paris 5, 1990. http://www.theses.fr/1990PA05D005.
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L'assistance est la forme primitive de l'assurance. On constate actuellement la multiplication des societes de service dites d'assistance, dont l'objet est de porter une aide materielle et morale a toute personne en difficulte, notamment en cas de voyages a l'etranger. Ces societes empruntent la technique de l'assurance. Si l'assistance a bien preexiste a l'assurance, il y a aujourd'hui une renaissance de l7assistance. Celle-ci est devenue, depuis l'adoption de la directive communautaire "assistance touristique", une nouvelle branche d'assurance. Comparer l'assistance a l'assurance conduit a observer les differences de leurs regimes. Cependant, le contrat d'assistance presente les memes principaux caracteres que le contrat d'assurance; de plus, nombre de contrats d'assistance, proposes par des entreprises d'assurance, ne sont autres que des contrats d'assurance. L'etude du regime juridique de l'assurance conduit a affirmer l'identite de nature des activites d'assistance et d'assuranceAssistance is the primitive form of insurance. We may see to day the multiplication of services companies called assistance companies whose purpose is to give a material and moral aid to any people in difficulty, especially in case of travels abroad. These companies have adopted the insurance technic. If assistance has effectively preceded insurance, there is now a renewal of assistance. Assistance has become, since the adoption of the e. E. C. Directive the "touristic assistance", a new branch. To compare assistance and insurance leads to observe the differences of their schemes. However, the assistance contracts offerts the same characteristics as the insurance contract. Many of the assistance contracts proposed by the insurance companies are nothing else but insurance contracts. The survey of the juridic scheme of assistance contrives to assert the identity of nature between assistance and insurance activities
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Ferrero, Alvarez-Calderón Guillermo, and izquierdo Antonio Guarniz. "Regulation of Financial Assistance." IUS ET VERITAS, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/123769.
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This article focuses on the study of a corporate rather, that is a controversial topic: the acquisitions of shares counting on leveraged buyouts. t his has led to increased specialized investment funds, as in Peru, they use these operations to develop their activities. However, the current situation has not been overlooked by the regulation, since this has imposed certain restrictions. After analyzing the phenomenon of leveraged buyouts, the article makes an analysis of the actual regulation to finally provide a possible alternative regulation.El presente artículo se centra en el estudio de un tema societariobastante controvertido: las operaciones de adquisición de acciones contandocompras apalancadas. este ha dado lugar al aumento de fondos de inversiónespecializados que, como en el Perú, se valen de estas operaciones paradesarrollar sus actividades. sin embargo, todo esto no ha sido pasado poralto por la regulación, pues esta le ha impuesto ciertas restricciones. es asíque luego de analizar el fenómeno de las compras apalancadas, el artículohace un análisis de su regulación para finalmente brindar una posible formade regulación alternativa.
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Chaumont, Fabrice de. "Développement d'une assistance robotisée." Amiens, 2006. http://www.theses.fr/2006AMIE0628.
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Les travaux présentés dans ce mémoire traitent du développement d'une assistance robotisée comportant un bras préhenseur (Manus®) monté sur un porteur mobile capable de suivre de façon automatique le fauteuil roulant du patient afin de mettre à la disposition de l'utilisateur le bras Manus®. La première partie de ces travaux concerne la création d'un algorithme permettant la modélisation de capteurs catadioptriques omnidirectionnels particuliers. Ils répondent à des contraintes prédéfinies permettant d'observer différents éléments de l'environnement sans déformations radiales. Dans un second temps, nous exposons deux méthodes de suivi automatique de fauteuil roulant à l'aide des seuls capteurs de vision omnidirectionnelle stéréoscopique. La méthode mise en application dans le projet permet d'effectuer un suivi d'objet suivant une méthode probabiliste basée sur le MeanShift et le CAMShift. Dans ce mémoire, nous adaptons le CAMShift de façon à travailler directement sur les images omnidirectionnelles afin d'obtenir une méthode rapide baptisée OmniCAMShift. Cette méthode comprend également une initialisation simple par soustraction d'image, prenant en compte les ombres et les sur illuminations. Le troisième point concerne l'ensemble de la navigation. Nous y traitons la cartographie, apportant ici une nouvelle méthode d'appariement robuste d'amers utilisant des capteurs omnidirectionnels stéréoscopiques. L'exploitation de ces appariements permet de construire une grille d'occupation absolue de l'environnement, et d'inclure des procédures d'évitement d'obstacle et de passage de porte automatique. Ce mémoire ayant pour caractéristique d'être fortement appliqué, une dernière partie expose l'ensemble des résultats et travaux d'ergonomie dans le cadre d'interactions homme machine liés à l'utilisation de cette assistanceThe work presented in this memory deals with the development of an aid for disabled people. This aid is the bundle of a Manus arm and a mobile robot, which is able to follow automatically the user's wheelchair. When the user wishes to use the Manus®, the mobile robot comes in front of the wheelchair and its occupant can use the Manus® arm. The first part of this work is the creation of an algorithm able to generate particular kind of omnidirectional catadioptric sensors. Those sensors allow to observe different parts of the environment without any radial deformation. In the second point, we explain two methods of automatic following of the wheelchair thanks to the sole stereoscopic omnidirectionals vision sensors. The method used in the project allows the tracking of an object using a probabilistic method based on the MeanShift and the CAMShift. In this work, we adapt the CAMShift in order to work directly on the omnidirectional images in order to get a method that we named OmniCAMShift. This method also embeds a simple initialisation of the model by subtracting images, taking into account shadows and highlights. The third point concerns the whole navigation. We deal with map generation, and we expose a new way to match the natural beacon using stereoscopic omnidirectional sensors. The use of those results enables to build an absolute occupation grid of the environment. Then we include the avoiding of obstacles and going through doors functionalities. This work has the particularity of being highly practical. A last part consequently shows the whole results and ergonomic work in the field of human-computer interface linked to the use of this aid for disabled people
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Pritchett, Anthony J. "U.S. economic assistance to Colombia: a model for U.S. economic assistance to Mexico?" Thesis, Monterey, California: Naval Postgraduate School, 2013. http://hdl.handle.net/10945/38997.
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Approved for public release; distribution is unlimited.Strong, effective, economic assistance programs are a crucial part of U.S. foreign policy. They are a primary instrument for advancing U.S. national interests, enhancing global stability, expanding economic opportunities, and promoting American democratic values. From 2004 through 2010, the United States donated more than $16 billion in economic assistance to countries in the Western Hemisphere. Some ask why the United States spends so much money abroad on humanitarian programs and infrastructure investments in developing states. To address this question, this thesis looks at Colombia and Mexico, both of which are of crucial strategic importance to the United States. Under Plan Colombia (20002006), U.S. economic assistance and staunch political will enabled Colombia to improve from 14th (2005) to 57th (2013) on the Failed State Index scale. As a result, Colombia has also emerged as a stronger U.S. partner in the Western Hemisphere. The Colombian experience was historically specific, but lessons can be extracted for Mexico, even though its history and relationship with Washington is very different. In particular, the recent Merida Initiative (Plan Mexico; 2008present) can benefit immensely from being carefully evaluated in light of the earlier success of Plan Colombia.
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Carlsen, Andreas Løberg. "Navigational Assistance for Mini-ROV." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11272.
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In this thesis a simple and low-cost aided inertial navigation system is presented which can be used to automate underwater search operations. The system is designed and implemented to be compatible with a VideoRay Pro 3 tethered mini-ROV. Inertial-, compass- and pressure measurements are collected with a dedicated embedded system and transferred to the surface for processing. System states are estimated, compared against a user specified pattern and used to generate path-following control inputs. The system is tested on a small scale and the results obtained through camera-based measurements show acceptable performance for short time intervals.
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Bidigaray, Stefan, Janet McKinney, Jose Montes, William Fiery, Megan Nguyen, Dixon Hory, Joshua Seab, et al. "Humanitarian Assistance Shelter System (HASS)." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/6964.
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Approved for public release; distribution is unlimitedApproved for public release; distribution is unlimited
As part of a Naval Postgraduate School's capstone project in Systems Engineering, the project team from Cohort 311-101O of the Naval Postgraduate School (NPS), performed a Systems Engineering analysis and verified the analysis with the acquisition and partial testing of the Humanitarian Assistance Shelter System (HASS). The HASS was developed in response to a need for a rapidly deployable mid-term shelter solution for disaster victims. There exists immediate shelter solutions for the victims, yet there is no transitional shelter available for the period between the demise of the immediate shelter and acquisition of permanent housing. For example, the displaced Haiti earthquake victims are still living in tents more than a year after the disaster has struck. This report documents the disciplined Systems Engineering approach used to determine the requirements, trade-offs, cost-effective solution, and testing required of the solution to fulfill the HASS stakeholders needs. Due to time constraint, partial testing on the HASS components was done with findings documented as well as recommendation for further testing and future work.
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Goodier, Ewan Roderick Tearlach. "Reluctance machines with flux assistance." Thesis, University of Leicester, 2003. http://hdl.handle.net/2381/30207.
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This thesis presents three reluctance machines with flux assistance. These machines provide alternative novel geometries that provide high efficiencies with a reduction in the ampere turns in the armature windings for torque production, lowering armature winding switching losses and reducing the power electronic rating. The Dual Stack Variable Reluctance Machine is a switched reluctance variant of the homopolar inductor alternator topology. The Single Stack Variable Reluctance Machine is a simplification of the Dual Stack machine. Both machines use a toroidal field winding to provide additional flux. The methods of connecting armature coils on each stator pole to utilise the armature flux and the choice of power electronic circuitry are important. Testing shows that such machines favour unipolar excitation with single coil per pole for the armature windings. Use of the field winding in series with the armature windings improves torque production. The Dual Stack Variable Reluctance Machine can have the mechanical angular displacement between the two stator stacks varied to provide an improved back emf waveshape for smoother torque production. The Single Stack Variable Reluctance Machine has parasitic and axial air gaps that pose interesting design issues (e.g. end thrust). Magnets can be placed in steel sections where flux is unidirectional. An ideal candidate for magnet insertion is the Flux Switching Motor. A Permanent Magnet Flux Switching Motor has been built that replaces the field windings with ferrite magnets. The Permanent Magnet Flux Switching Motor achieves efficiencies of over 80%. It adds no additional cost to the fan application as cost savings in lower temperature rated thermoplastics offsets the cost of magnets. A prototyping circuit incorporating a novel micro-processor program to alter the commutation timings as the machine operates has been designed to allow fast optimisation of each machine for minimum input power.
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Trinkl, Jean. "Coeur artificiel et assistance circulatoire." Aix-Marseille 2, 1998. http://www.theses.fr/1998AIX21903.
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Van, Oudenhove de Saint Géry Charles Nicolas. "Emphysème bulleux et assistance ventilatoire." Montpellier 1, 1988. http://www.theses.fr/1988MON11369.
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Popken, Anke. "Drivers’ reliance on lane keeping assistance systems as a function of the level of assistance." Doctoral thesis, Universitätsbibliothek Chemnitz, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-201000382.
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Fahrerassistenzsysteme werden zunehmend in Fahrzeuge eingebaut mit dem Ziel, den Fahrer beim Fahren zu unterstützen, Fahrfehler zu vermeiden und damit die Fahrsicherheit zu erhöhen. Derzeit sind häufig Systeme im Einsatz, die den Fahrer vor bestimmten Sicherheitsrisiken warnen (z.B. vor einem unbeabsichtigten Verlassen der Fahrspur). Der Trend geht aber hin zu Systemen, die stärker ins Fahrgeschehen eingreifen und somit Teile der Fahraufgabe automatisieren (z.B. selbständig die Spurhaltung des Fahrzeugs übernehmen). Aus der Forschung zur Mensch-Maschine Interaktion ist jedoch bekannt, dass Automatisierung nicht zwangsläufig zur Erhöhung von Sicherheit führt, sondern dass sie vielmehr auch unerwünschte Nebeneffekte für Performanz und Sicherheit mit sich bringen kann in dem Maße, wie Menschen an die veränderten Aufgabenanforderungen adaptieren. Im Straßenverkehr wird insbesondere befürchtet, dass Fahrer sich zu stark auf Fahrerassistenzsysteme verlassen, sich teilweise aus der Fahraufgabe zurückziehen („abschalten“) und ihre Aufmerksamkeit fahrfremden Dingen widmen. Dies kann unter Umständen dazu führen, dass Fahrer im Falle von Systemfehlern oder –ausfällen nicht mehr in der Lage sind rechtzeitig und angemessen einzugreifen bzw. die Kontrolle über das Fahrzeug zu übernehmen. Ziel der Dissertation war es zu untersuchen, inwieweit sich die Involviertheit von Fahrern in die Fahraufgabe verändert je stärker sie durch ein Assistenzsystem unterstützt werden (d.h., je stärker das System Teile der Fahraufgabe automatisiert). Um dies zu untersuchen wurden zwei theoretische Konzepte herangezogen: a) das Verlassen der Fahrer (auf ein System) und b) das Situationsbewusstsein der Fahrer. Basierend auf einer umfassenden Analyse der Forschungsliteratur zum Thema Automatisierung wurde ein theoretisches Rahmenmodell entwickelt, welches Veränderungen in der Involviertheit des Fahrers in die Fahraufgabe auf menschliche Adaptationsprozesse auf verschiedenen Ebenen zurückführt, die sich in Folge der veränderten Aufgabenanforderungen durch zunehmende Automatisierung ergeben. Dazu zählen Veränderungen in Einstellungen, sowie in kognitiven, energetischen, und motivationalen Prozessen. Um Veränderungen in diesen Prozessen zu untersuchen, wurde eine Vielzahl an objektiven und subjektiven Maßen erhoben. Hauptgegenstand der Dissertation ist eine umfangreiche Fahrsimulatorstudie im Fahrsimulator mit Bewegungsplattform bei VTI (Swedish National Road and Transport Research Institute) in Linköping, Schweden. Dabei kamen zwei Querführungsassistenzsysteme (ein Heading Control System und ein Lane Departure Warning System) zum Einsatz, die den Fahrer in unterschiedlichem Maße bei der Spurhaltung unterstützten. Im Gegensatz zu einem Großteil der bisherigen Studien wurden prozessorientierte Performanzmaße zur Erfassung des Verlassens der Fahrer auf die Assistenzsysteme und des Situationsbewusstseins der Fahrer verwendet. Das Verlassen der Fahrer auf die Querführungsassistenzsysteme wurde durch Blickverhaltensmaße über die Bereitschaft der Fahrer erfasst, ihre visuelle Aufmerksamkeit von der Straße ab hin zu einer Zweitaufgabe im Fahrzeuginnenraum zu wenden. Zur Messung des Situationsbewusstseins der Fahrer wurden Fahrverhaltensmaße herangezogen welche als Indikator für die Schnelligkeit und Abruptheit der Reaktionen der Fahrer auf unerwartete kritische Fahrsituationen dienten. Ein Hauptbefund der Dissertation war, dass die Fahrer sich signifikant im Ausmaß ihres Verlassens auf einen hohen Grad an Assistenz unterschieden. Diese interindividuelle Varianz im Verlassen der Fahrer auf einen hohen Grad an Assistenz konnte am besten durch das Vertrauen der Fahrer in das Querführungsassistenzsystem und ihr Aktivierungsniveau erklärt werden: Je höher das Vertrauen der Fahrer in das System und je geringer ihr Aktivierungsniveau, desto stärker verließen sie sich auf das System. Individuelle Fahrermerkmale (Fahrstil) erklärten einen signifikanten Anteil der Varianz im Vertrauen der Fahrer in die Spurhalteassistenzsysteme. (ersetzt wegen neuem Herausgeber)Advanced driver assistance systems are increasingly built in vehicles with the aim to support drivers while driving, to reduce driver errors and thereby to increase traffic safety. At present, these systems are often designed to warn drivers of specific safety risks (e.g., of an imminent departure from the driving lane). However, there is a trend towards systems that more strongly intervene in driving and that hence, automate parts of the driving task (e.g., autonomously keep the vehicle within the driving lane). However, research on human-machine interaction has shown that automation does not necessarily increase safety, but that it may also lead to unanticipated side effects on performance and safety to the extent that humans adapt to the changing task demands. A major concern in road traffic is that drivers rely too heavily on driver assistance systems, become less actively involved in the driving task, and divert their attention to things unrelated to driving. Thus, in the case of system malfunctions or failures, drivers possibly may not be prepared to intervene timely and accordingly and to regain control over the vehicle, respectively. The aim of this dissertation was to investigate changes in drivers’ active engagement in the driving task as a function of the degree to which they are supported by a driver assistance system (i.e., as a function of the degree to which the system automates the driving task). Drivers’ active task engagement was studied by referring to two theoretical concepts: a) drivers’ reliance (on a system) and b) drivers’ situation awareness. Based on an extensive review of previous research on automation, a conceptual theoretical framework was developed that links changes in operators’ active task engagement to human adaptation processes on different levels in response to the changing task demands due to automation. Among them are changes in human attitudes as well as in cognitive, motivational and energetic processes. In order to determine the relative influence of these processes, a range of objective and subjective measures was collected. The essential part of the dissertation is an extensive driving simulator study in an advanced moving-base driving simulator at VTI (Swedish National Road and Transport Research Institute) in Linköping, Sweden. Two lateral support systems (a Heading Control system and a Lane Departure Warning system) were implemented which assisted drivers to different degrees in lane keeping. Contrary to most previous automation studies, drivers’ reliance on the lane keeping assistance systems and their situation awareness were studied by using process-oriented performance-based measures. Drivers’ reliance on the lane keeping assistance systems was assessed by eye glance behaviour measures indicating drivers’ preparedness to allocate their visual attention away from the road scene to an in-vehicle secondary task. Drivers’ situation awareness was assessed by behavioural measures of the latency and magnitude of drivers’ initial reactions to unexpected critical driving situations. A major finding of the study was that drivers differed significantly in their reliance on a high level of lane keeping assistance. This interindividual variance in drivers’ reliance on higher-level assistance could be best explained by drivers’ trust in the system and their energetic arousal: The greater drivers’ trust in the system and the lower their arousal, the more did they rely on the system. Individual driver variables (driving style) explained a significant proportion of the variance in drivers’ trust in the lane keeping assistance systems. (replaced because a new publisher)
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Versan, R. "The general principles of international judicial assistance in civil matters and judicial assistance to international courts." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373715.
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Carl, Stephen J. "United States Foreign Assistance Programs: the Requirement of Metrics for Security Assistance and Security Cooperation Programs." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7316.
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Foreign aid has been a signal component of United States foreign policy since the creation of the Marshall Plan. Since that time, as new requirements emerged, numerous foreign aid programs and initiatives were created and subsequently piecemealed together under various U.S. agencies. The confluence of programs, initiatives, and agencies has created a confusing and overly bureaucratized environment for expending funds in an effort to support the democratization and modernization of other countries. This study examines U.S. aid provided to Ukraine and Georgia to determine if they have progressed toward Westernized defense and military structures, in accordance with their stated national goals, within the realm of logistics. The question is whether U.S. security aid in these states has helped to achieve these goals. Addressing this question, this thesis proposes a hierarchal construct with differing assessment criteria based on how and where U.S. aid is applied. In the end, this analysis shows that U.S. aid and assistance programs and funds have assisted both Ukraine and Georgia with their modernization efforts. However, U.S. policy makers and policy implementers need to consideration alternative and new methods to accurately assess how well those funds are spent in-line with U.S. foreign policy goals.
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Fiedler, Barbara Casson Smith Paula J. "Characteristics of school-based assistance teams." Normal, Ill. Illinois State University, 1992. http://wwwlib.umi.com/cr/ilstu/fullcit?p9227167.
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Thesis (Ed. D.)--Illinois State University,Title from title page screen, viewed Dissertation Committee: Paula J. Smith (chair), Mack L. Bowen, E. Paula Crawley, Kenneth H. Strand. Includes bibliographical references (leaves 83-86) and abstract. Also available in print.
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Onkarappa, Naveen. "Optical Flow in Driver Assistance Systems." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/129340.
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El moviment és un atribut perceptiu del cervell humà molt important. La percepció visual que fa el cervell del moviment és el procés d’inferir la velocitat i direcció dels elements d’un escenari mitjançant entrades visuals. Anàlogament, la visió per computador s’assisteix mitjançant informació del moviment de l’escena. En visió per computador, la detecció de moviment és útil per a resoldre problemes com per exemple segmentació, estimació de la profunditat, estimació de l’estructura a partir del moviment, compressió de dades o navegació entre d’altres. Aquests problemes són comuns a diferents aplicacions, com ara vídeo vigilància, navegació de robots i sistemes avançats d’assistència a la conducció (Advanced Driver Assistance Systems, ADAS). Una de les tècniques més utilitzades per a detectar moviment, és el càlcul d’optical flow. El treball tractat en aquesta tesi pretén que les formulacions d’optical flow siguin més apropiades als requeriments i condicions dels escenaris de conducció. En aquest context, es proposa una nova representació de l’espai-variant anomenada representació reverse log-polar, i es demostra que, quan s’utilitza per a ADAS, té un rendiment millor que la tradicional representació log-polar. La representació espai-variant redueix la quantitat de dades necessàries que han de ser processades. Una altra contribució important està relacionada amb l’anàlisi de la influència de les característiques específiques d’escenaris de conducció per a la precisió de l’optical flow. S’han considerat característiques tals com la velocitat del vehicle i la textura de la carretera. D’aquest estudi s’infereix que, el pes del terme de regularització s’ha d’adaptar segons una mesura d’error i per a diferents velocitats i textures de la carretera. També es mostra que la representació polar d’optical flow funciona molt millor per a escenaris de conducció on el moviment principal són translacions. Degut als requeriments d’aquest estudi, i per la manca de bases de dades es presenta una nova base de dades sintètica que conté: i) seqüències amb diferents velocitats i textures en un escenari urbà; ii) seqüències amb moviments complexos de la càmera col·locada al vehicle; i iii) seqüències amb altres vehicles en moviment dintre la mateixa escena. L’optical flow corresponent a cada seqüència s’obté mitjançant la tècnica de ray-tracing. A més a més, es presenten algunes aplicacions per a optical flow en escenaris ADAS. Per començar, proposem una tècnica robusta basada en RANSAC per estimar la línia de l’horitzó. Després, presentem una estimació de l’egomotion per a comparar la representació espai-variant proposada amb les representacions clàssiques. Com a contribució final, es proposa una modificació del terme de regularització que millora notablement els resultats per a aplicacions d’ADAS. Aquesta adaptació s’avalua mitjançant tècniques d’optical flow d’última generació. Els experiments realitzats amb una base de dades pública (KITTI) validen els avantatges d’utilitzar la modificació proposada.La percepción del movimiento es uno de los más importantes atributos del cerebro humano. La percepción visual del movimiento consiste en inferir velocidad y dirección de los elementos móviles que interactúan en una escena, mediante la interpretación de diferentes entradas visuales. Análogamente, la visión por computador hace uso de la información del movimiento en la escena. La detección de movimiento en visión por computador es útil para resolver problemas tales como: segmentación, estimación de profundidad, compresión, navegación, entre otros. Estos problemas son comunes en distintas aplicaciones, por ejemplo: video vigilancia, navegación de robots y sistemas avanzados de asistencia a la conducción (ADAS). Una de las técnicas más utilizadas para detectar movimiento es la estimación del flujo óptico. El trabajo abordado en esta tesis busca formulaciones del flujo óptico más adecuadas a las necesidades y condiciones de los escenarios de conducción. En este contexto, se propuso una novedosa representación del espacio, llamada representación inversa log-polar, la cual se demuestra que tiene un desempeño mejor que la tradicional representación logpolar para aplicaciones ADAS. Las representaciones de espacio-variante reducen la cantidad de datos a ser procesados. Otra contribución importante está relacionada con el análisis de la influencia de las características específicas de los escenarios de conducción en la precisión del flujo óptico estimado. Características tales como la velocidad del vehículo y la textura de la carretera son consideradas en el estudio. De este estudio, se infiere que el peso del término de regularización tiene que ser adaptado de acuerdo con la medida de error requerida y para diferentes velocidades y texturas de la carretera. También se concluye que la representación polar del flujo óptico es la más apropiada en escenarios de conducción, donde el movimiento predominante es la translación. Debido a las exigencias de tal estudio, y por falta de las bases de datos necesarias, se presenta un nuevo conjunto de datos sintéticos el cual contiene: i) secuencias de diferentes velocidades y texturas en un escenario urbano; ii) secuencias con movimientos complejos de la cámara dispuesta en el vehículo; y iii) secuencias con otros vehículos en movimiento en la escena. El flujo óptico correspondiente a cada secuencia es obtenido mediante una técnica de ray-tracing. Adicionalmente, se presentan algunas aplicaciones de flujo óptico en ADAS. Primeramente se propone una técnica robusta basada en RANSAC para estimar la línea de horizonte. Seguidamente se presenta una estimación del egomotion para comparar la representación de espacio-variante propuesta con los esquemas clásicos. Como contribución final, se propone una modificación en el término de regularización que mejora notablemente los resultados en las aplicaciones ADAS. Los resultados experimentales en una base de datos pública (KITTI) validan las ventajas de la utilización de la modificación propuesta.
Motion perception is one of the most important attributes of the human brain. Visual motion perception consists in inferring speed and direction of elements in a scene based on visual inputs. Analogously, computer vision is assisted by motion cues in the scene. Motion detection in computer vision is useful in solving problems such as segmentation, depth from motion, structure from motion, compression, navigation and many others. These problems are common in several applications, for instance, video surveillance, robot navigation and advanced driver assistance systems (ADAS). One of the most widely used techniques for motion detection is the optical flow estimation. The work in this thesis attempts to make optical flow suitable for the requirements and conditions of driving scenarios. In this context, a novel space-variant representation called reverse log-polar representation is proposed that is shown to be better than the traditional log-polar space-variant representation for ADAS. The space-variant representations reduce the amount of data to be processed. Another major contribution in this research is related to the analysis of the influence of specific characteristics from driving scenarios on the optical flow accuracy. Characteristics such as vehicle speed and road texture are considered in the aforementioned analysis. From this study, it is inferred that the regularization weight has to be adapted according to the required error measure and for different speeds and road textures. It is also shown that polar represented optical flow suits driving scenarios where predominant motion is translation. Due to the requirements of such a study and by the lack of needed datasets a new synthetic dataset is presented; it contains: i) sequences of different speeds and road textures in an urban scenario; ii) sequences with complex motion of an on-board camera; and iii) sequences with additional moving vehicles in the scene. The ground-truth optical flow is generated by the ray-tracing technique. Further, few applications of optical flow in ADAS are shown. Firstly, a robust RANSAC based technique to estimate horizon line is proposed. Then, an egomotion estimation is presented to compare the proposed space-variant representation with the classical one. As a final contribution, a modification in the regularization term is proposed that notably improves the results in the ADAS applications. This adaptation is evaluated using a state of the art optical flow technique. The experiments on a public dataset (KITTI) validate the advantages of using the proposed modification.
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Standal, Laura. "Best practices of employee assistance programs." Menomonie, WI : University of Wisconsin--Stout, 2005. http://www.uwstout.edu/lib/thesis/2005/2005standall.pdf.
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Pung, Jorn A. "U.S. security assistance lever or handout? /." Connect to Electronic Thesis (CONTENTdm), 2010. http://worldcat.org/oclc/643312471/viewonline.
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Patterson, Donald Jay. "Assisted cognition : compensatory activity assistance technology /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/6853.
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Sellers, Deanna Lynn. "Coaching experiences instructional assistance for change /." Cincinnati, Ohio : University of Cincinnati, 2006. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1147742193.
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Thesis (Dr. of Education)--University of Cincinnati, 2006.Title from electronic thesis title page (viewed Sept. 13, 2006). Includes abstract. Keywords: coaching; Professional Development; Teacher Learning. Includes bibliographical references.
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Dong, Lin. "Assistance to laparoscopic surgery through comanipulation." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066305/document.
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La chirurgie laparoscopique conventionnelle apporte des avantages aux patients mais pose des défis aux chirurgiens. Utiliser le robot permet de surmonter certaines des difficultés. Nous utilisons ici le concept de comanipulation, où un bras robotique sert de comanipulateur et génère des champs de force pour aider les chirurgiens. Pour implémenter des fonctions telles que la compensation de la gravité de l’instrument, il est utile de connaître la position du trocart en temps réel par rapport à la base du robot. Nous proposons un algorithme de détection et localisation de trocarts, basé sur la méthode du moins carré. Des expériences in vitro et in vivo valident son efficacité. Considérant des caractéristiques de la chirurgie laparoscopique, i.e., de l’espace de travail grand et de la difficulté de planifier le geste, des champs visqueux sont utilisés. Afin de s’adapter aux mouvements différents, nous utilisons une loi de commande de viscosité variable. Cependant, elle rencontre un problème d’instabilité, qui est analysé théoriquement et expérimentalement. Une solution d’ajout d’un filtre passe-bas de premier ordre est proposée, dont l’efficacité est mise en évidence par une expérience de ciblage point à point. Avec la position du trocart connue, nous pouvons établir «le modèle de levier», une formule décrivant la relation entre les vitesses et les forces appliquées à différents points de l’instrument. Ceci permet de mettre en œuvre une loi de commande de viscosité sans utiliser de signaux bruités, au point de centre de la poignée ou la pointe de l’instrument. Une expérience est menée pour comparer l’influence de la loi de commande sur les comportements de mouvement humainTraditional laparoscopic surgery brings advantages to patients but poses challenges to surgeons. The introduction of robots into surgical procedures overcomes some of the difficulties. In this work, we use the concept of comanipulation, where a 7-joint serial robotic arm serves as a comanipulator and generates force fields to assist surgeons.In order to implement functions like instrument gravity compensation, identifying real-time trocar position with respect to robot base is a prerequisite. Instead of obtaining trocar information from the registration step, we propose a robust trocar detection and localization algorithm based on least square method. Both in-vitro and in-vivo experiments validate its efficiency.Considering the characteristics of laparoscopic surgery, i.e., relatively large workspace and flexible operating objects, viscous fields are employed. To better adapt to different motion, we use a variable viscosity controller. However, this controller encounters an instability problem, which is analyzed both theoretically and experimentally. A solution of adding a first order low pass filter is proposed to slow down the variation of the viscosity coefficient, whose efficiency is evidenced by a point-to-point targeting experiment.With real-time trocar position known, the “lever model”, a formula describing therelationship of the velocities and forces of different instrument points, can be established. This allows implementing viscosity controller without using noisy signals at the center points of instrument handle and tip. Another point-to-point movement experiment is conducted to compare the features of the controller influence on human motion behaviors
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Ichihashi, Katsuya. "Law and Legal Assistance in Uzbekistan." Center for Asian Legal Exchange, Graduate School of Law , Nagoya University, 2005. http://hdl.handle.net/2237/20115.
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Dozier, Meredith J. "Analysis of Humanitarian Assistance Cargo Transportation." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/7334.
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Humanitarian assistance is of growing importance to the United States and the Department of Defense's strategic objectives. Thus, United States combatant commands increasingly rely on humanitarian assistance cargo transportation programs to deliver materiel to people in need in their areas of responsibility. This report analyzes the options available to these commands in seeking humanitarian assistance cargo transportation. The report offers a description of current operations, with a specific focus on the European area of responsibility, where these programs have had limited activity. The analysis reaches the following conclusions: (1) currently no transportation program exists that focuses on providing a quality of service to combatant commands and humanitarian assistance transportation needs, (2) legal, fiscal, and operational mechanisms exist and are outlined to create such a program, and (3) exclusively space-available transportation is generally insufficient for providing the quality of service that may be required for relationship-building through humanitarian assistance cargo transportation, and contract shipping may be necessary. These conclusions are placed in the context of current humanitarian assistance operations, and relevant operational considerations are highlighted throughout the report. The analysis is based on both a quantitative model of transportation, as well as detailed conversations with humanitarian assistance personnel throughout key Department of Defense organizations.
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Hadley, Michael Anthony. "Remote pilotage and enhanced navigation assistance." Thesis, Southampton Solent University, 2000. http://ssudl.solent.ac.uk/1240/.
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The drive to reduce costs and to ensure that ports can stay open to the maximum extent in all weathers has given impetus to the search for more flexible vessel traffic management; something that current advances in technology make it possible to contemplate. Various issues pose a significant challenge to implementation, including the inherent conservatism of the maritime community. Nonetheless, aspects of potential new services are already in regualr use. Remote pilotage is a detectable strand in EU research thinking and the port of Rotterdam is preparing for its all weather implementation. First the issues involved were established by means of a literature search followed by a series of structured interviews and a questionnaire. the results were analysed, leading to a body of results that can be used by those seeking to make decisions in this area of maritime operations. A comparison with Air Traffic Management concluded that there would be merit in adopting some of its philosophy and procedures. specific focus was then given to establishing, by means of a questionnaire, a generic set of indicators by which it can be decided whether specific vessels quality for a given new service. Throughout the research qualitative data was sought from highly qualified professionals. Two new services are proposed; remote pilotage and enhanced navigation assistance. In the hierarchy of services they fit between the provision of an on board pilot and those currently provided by a VTS. Working definitions of both services have been established. The required technology is either available or can be seen to be a realistic prospect. AIS has emerged as a key enabling technology and the exchange of passage plans will be important. However,technology alone will not suffice to make change practible. The non-technological issues are more intractable but capable of solution. Progress, if realised, can be expected to be slow; the current assessment for the spread of remote pilotage is 10-15 years. A case cannot be made for the implementation of remoter pilotage or enhanced navigation assistance on the grounds of improved safety; an acceptable level of safety must be assumed to exist. There is also a need for the appropriate legislative framework to be in place and the issue of liability to be resolved. Ultimately the prime requirement for successful implementation is the realisation of a commercial benefit to both a port and the ship owner.
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Holbrook, A. E. K. "Design assistance for complex engineering assemblies." Thesis, Cranfield University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303118.
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Goodwin, Michael John. "Navigational assistance for disabled wheelchair users." Thesis, University of Portsmouth, 1999. https://researchportal.port.ac.uk/portal/en/theses/navigational-assistance-for-disabled-wheelchair-users(5797931f-06f3-4b9f-a7e5-cc63357a8a50).html.
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Previous low cost systems of navigational assistance for disabled wheelchair users have provided little more than simple obstacle and collision avoidance, or follow a pre-defined fixed route defined by a white line or a buried wire. Other research has used complex high cost multi-sensor mode systems closely resembling industrial, military or space exploration applications. These systems used natural features or artificial beacons to produce accurate maps of the operating environments. The progress of the vehicle is monitored and corrected using multisensor techniques such as vision cameras, odometry and triangulation from beacons located in the environment. Such systems have required modification of the operating environment and have resulted in a fully autonomous vehicle providing little or no overall control by the user. Whilst proving the technical feasibilty their cost and complexity has not resulted in practical and affordable solutions for the wheelchair user. The purpose of the present study was to bridge the gap between these two previous areas of research and to provide navigational assistance at an affordable cost. Low cost ultrasonic sensors enabled a wheelchair to operate in an unknown (i. e. previously unmapped) environment whilst leaving the user in overall control. Hardware modifications to a commercial powered wheelchair enabled data from ultrasonic arrays and the user's joystick to be interrogated and mixed by a computer to provide appropriate signals for the wheelchair drive motors. A simulation program was created to interpret the sensor signals that would be generated from the various conditions likely to be encountered by a wheelchair and to develop the various control strategies. The simulation was able to differentiate between the various environmental conditions and select the appropriate action using the newly created control algorithms. The sensor data interpretation modules together with the control algorithms, from the simulation, were incorporated into a practical system for controlling the wheelchair. In tests data from the sensors was used to detect and evaluate localised changes in the environment and used to determine appropriate signals for the drive wheel motors. In the tests it was found that the wheelchair controller and the geometry of the wheelchair resulted in a degradation of the expected wheelchair response. This was overcome in two ways: firstly by modifying the control algorithm and secondly by changing the wheelchair geometry.
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GOLDSCHMIDT, RONALDO RIBEIRO. "INTELLIGENT ASSISTANCE FOR KDD-PROCESS ORIENTATION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4309@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROA notória complexidade inerente ao processo de KDD - Descoberta de Conhecimento em Bases de Dados - decorre essencialmente de aspectos relacionados ao controle e à condução deste processo (Fayyad et al., 1996b; Hellerstein et al., 1999). De uma maneira geral, estes aspectos envolvem dificuldades em perceber inúmeros fatos cuja origem e os níveis de detalhe são os mais diversos e difusos, em interpretar adequadamente estes fatos, em conjugar dinamicamente tais interpretações e em decidir que ações devem ser realizadas de forma a procurar obter bons resultados. Como identificar precisamente os objetivos do processo, como escolher dentre os inúmeros algoritmos de mineração e de pré-processamento de dados existentes e, sobretudo, como utilizar adequadamente os algoritmos escolhidos em cada situação são alguns exemplos das complexas e recorrentes questões na condução de processos de KDD. Cabe ao analista humano a árdua tarefa de orientar a execução de processos de KDD. Para tanto, diante de cada cenário, o homem utiliza sua experiência anterior, seus conhecimentos e sua intuição para interpretar e combinar os fatos de forma a decidir qual a estratégia a ser adotada (Fayyad et al., 1996a, b; Wirth et al., 1998). Embora reconhecidamente úteis e desejáveis, são poucas as alternativas computacionais existentes voltadas a auxiliar o homem na condução do processo de KDD (Engels, 1996; Amant e Cohen, 1997; Livingston, 2001; Bernstein et al., 2002; Brazdil et al., 2003). Aliado ao exposto acima, a demanda por aplicações de KDD em diversas áreas vem crescendo de forma muito acentuada nos últimos anos (Buchanan, 2000). É muito comum não existirem profissionais com experiência em KDD disponíveis para atender a esta crescente demanda (Piatetsky-Shapiro, 1999). Neste contexto, a criação de ferramentas inteligentes que auxiliem o homem no controle do processo de KDD se mostra ainda mais oportuna (Brachman e Anand, 1996; Mitchell, 1997). Assim sendo, esta tese teve como objetivos pesquisar, propor, desenvolver e avaliar uma Máquina de Assistência Inteligente à Orientação do Processo de KDD que possa ser utilizada, fundamentalmente, como instrumento didático voltado à formação de profissionais especializados na área da Descoberta de Conhecimento em Bases de Dados. A máquina proposta foi formalizada com base na Teoria do Planejamento para Resolução de Problemas (Russell e Norvig, 1995) da Inteligência Artificial e implementada a partir da integração de funções de assistência utilizadas em diferentes níveis de controle do processo de KDD: Definição de Objetivos, Planejamento de Ações de KDD, Execução dos Planos de Ações de KDD e Aquisição e Formalização do Conhecimento. A Assistência à Definição de Objetivos tem como meta auxiliar o homem na identificação de tarefas de KDD cuja execução seja potencialmente viável em aplicações de KDD. Esta assistência foi inspirada na percepção de um certo tipo de semelhança no nível intensional apresentado entre determinados bancos de dados. Tal percepção auxilia na prospecção do tipo de conhecimento a ser procurado, uma vez que conjuntos de dados com estruturas similares tendem a despertar interesses similares mesmo em aplicações de KDD distintas. Conceitos da Teoria da Equivalência entre Atributos de Bancos de Dados (Larson et al., 1989) viabilizam a utilização de uma estrutura comum na qual qualquer base de dados pode ser representada. Desta forma, bases de dados, ao serem representadas na nova estrutura, podem ser mapeadas em tarefas de KDD, compatíveis com tal estrutura. Conceitos de Espaços Topológicos (Lipschutz, 1979) e recursos de Redes Neurais Artificiais (Haykin, 1999) são utilizados para viabilizar os mapeamentos entre padrões heterogêneos. Uma vez definidos os objetivos em uma aplicação de KDD, decisões sobre como tais objetivos podem ser alcançados se tornam nece
Generally speaking, such aspects involve difficulties in perceiving innumerable facts whose origin and levels of detail are highly diverse and diffused, in adequately interpreting these facts, in dynamically conjugating such interpretations, and in deciding which actions must be performed in order to obtain good results. How are the objectives of the process to be identified in a precise manner? How is one among the countless existing data mining and preprocessing algorithms to be selected? And most importantly, how can the selected algorithms be put to suitable use in each different situation? These are but a few examples of the complex and recurrent questions that are posed when KDD processes are performed. Human analysts must cope with the arduous task of orienting the execution of KDD processes. To this end, in face of each different scenario, humans resort to their previous experiences, their knowledge, and their intuition in order to interpret and combine the facts and therefore be able to decide on the strategy to be adopted (Fayyad et al., 1996a, b; Wirth et al., 1998). Although the existing computational alternatives have proved to be useful and desirable, few of them are designed to help humans to perform KDD processes (Engels, 1996; Amant and Cohen, 1997; Livingston, 2001; Bernstein et al., 2002; Brazdil et al., 2003). In association with the above-mentioned fact, the demand for KDD applications in several different areas has increased dramatically in the past few years (Buchanan, 2000). Quite commonly, the number of available practitioners with experience in KDD is not sufficient to satisfy this growing demand (Piatetsky-Shapiro, 1999). Within such a context, the creation of intelligent tools that aim to assist humans in controlling KDD processes proves to be even more opportune (Brachman and Anand, 1996; Mitchell, 1997). Such being the case, the objectives of this thesis were to investigate, propose, develop, and evaluate an Intelligent Machine for KDD-Process Orientation that is basically intended to serve as a teaching tool to be used in professional specialization courses in the area of Knowledge Discovery in Databases. The basis for formalization of the proposed machine was the Planning Theory for Problem-Solving (Russell and Norvig, 1995) in Artificial Intelligence. Its implementation was based on the integration of assistance functions that are used at different KDD process control levels: Goal Definition, KDD Action-Planning, KDD Action Plan Execution, and Knowledge Acquisition and Formalization. The Goal Definition Assistant aims to assist humans in identifying KDD tasks that are potentially executable in KDD applications. This assistant was inspired by the detection of a certain type of similarity between the intensional levels presented by certain databases. The observation of this fact helps humans to mine the type of knowledge that must be discovered since data sets with similar structures tend to arouse similar interests even in distinct KDD applications. Concepts from the Theory of Attribute Equivalence in Databases (Larson et al., 1989) make it possible to use a common structure in which any database may be represented. In this manner, when databases are represented in the new structure, it is possible to map them into KDD tasks that are compatible with such a structure. Topological space concepts and ANN resources as described in Topological Spaces (Lipschutz, 1979) and Artificial Neural Nets (Haykin, 1999) have been employed so as to allow mapping between heterogeneous patterns. After the goals have been defined in a KDD application, it is necessary to decide how such goals are to be achieved. The first step involves selecting the most appropriate data mining algorithm for the problem at hand. The KDD Action-Planning Assistant helps humans to make this choice. To this end, it makes use of a methodology for ordering the mining algorithms that is based on the prev
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LANZETTA, ROBERTA CORRÊA. "PURCHASED SUPPORT: CONTEMPORARY ASSISTANCE FOR MOTHERHOOD." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=27299@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
O Objetivo desse trabalho é analisar, através de um estudo teórico e de uma pesquisa de campo, os possíveis atravessamentos da cultura contemporânea, com ênfase nas questões da eficiência e do consumo, na construção das primeiras relações mãe-bebê e suas repercussões nas práticas de maternagem. Buscou-se para isso apoio na Psicanálise, na História e na Sociologia. Diversos aspectos estão envolvidos nas expectativas atuais diante da maternidade relacionados com sentimentos de insegurança e incerteza presentes no mundo em que vivemos, onde a vida é marcada pela incerteza, instabilidade e fluidez dos valores. O sujeito contemporâneo por conta disso acredita precisar de especialistas para respaldá-lo nos mais diversos aspectos. As inseguranças presentes na situação da maternidade, em especial no caso do primeiro filho, são aqui colocadas em relevo, problematizando a busca de apoios disponibilizados por um mercado que hoje propõe respostas em forma de cursos, manuais e diversos outros produtos a serem consumidos.
This work aims to analyze, through a theoretical study and field research, the possible influences of contemporary culture, with an emphases on issues of efficiency and consumption, in the process of building the relationship between mother and baby and their repercussions of maternal practices. For that, a support on Psychoanalysis, History and Sociology was explored. A variety of aspects are involved in nowadays expectations on maternity. Feelings of insecurity and uncertainty are present in the contemporary world, where life is dictated by uncertainty, instability and fluidity of values. Due to that, contemporary subjects often believe they need specialists to back them up in many different areas. The insecurities present in maternity, especially when it comes to firstborns, are here highlighted, questioning the search of support made available by a market that today proposes answers in form of courses, textbooks and many other products to be consumed.
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Pardue, Laurel S. "Violin augmentation techniques for learning assistance." Thesis, Queen Mary, University of London, 2017. http://qmro.qmul.ac.uk/xmlui/handle/123456789/25934.
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Learning violin is a challenging task requiring execution of pitch tasks with the left hand using a strong aural feedback loop for correctly adjusting pitch, concurrent with the right hand moving a bow precisely with correct pressure across strings. Real-time technological assistance can help a student gain feedback and understanding helpful for learning and maintaining motivation. This thesis presents real-time low-cost low-latency violin augmentations that can be used to assist learning the violin along with other real-time performance tasks. To capture bow performance, we demonstrate a new means of bow tracking by measuring bow hair de ection from the bow hair being pressed against the string. Using near- eld optical sensors placed along the bow we are able to estimate bow position and pressure through linear regression from training samples. For left hand pitch tracking, we introduce low cost means for tracking nger position and illustrate the combination of sensed results with audio processing to achieve high accuracy low-latency pitch tracking. We subsequently verify our new tracking methods' e ectiveness and usefulness demonstrating low-latency note onset detection and control of real-time performance visuals. To help tackle the challenge of intonation, we used our pitch estimation to develop low latency pitch correction. Using expert performers, we veri ed that fully correcting pitch is not only disconcerting but breaks a violinist's learned pitch feedback loop resulting in worse asplayed performance. However, partial pitch correction, though also linked to worse as-played performance, did not lead to a signi cantly negative experience con rming its potential for use to temporarily reduce barriers to success. Subsequently, in a study with beginners, we veri ed that when the pitch feedback loop is underdeveloped, automatic pitch correction did not signi cantly hinder performance, but o ered an enjoyable low-pitch error experience and that providing an automatic target guide pitch was helpful in correcting performed pitch error.
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Darves-Bornoz, Reim. "Online digital archives : collaboration and assistance." Lyon, INSA, 2010. http://www.theses.fr/2010ISAL0043.
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In this thesis we propose a digital archive model that permits users to access digitized documents easily, to study their content, to search them, as well as to enrich them by annotations or alternative classifications. The model contains a management system to store, visualize, organize, search and annotate these documents. Moreover, since the annotation process is laborious, reading a manuscript page takes sometimes hours, a solution is proposed to publish these documents online and to offer annotation tools to different user types to facilitate the annotation creation by a larger audience. The integrated assistant is developed by using case-based reasoning, it reasons from the registered traces of users’ interaction with the system, to suggest some help to the current userDans cette thèse nous proposons un modèle d’archive numérique, permettant aux utilisateurs d’accéder aux documents numériques facilement, d’étudier leur contenu, de les rechercher, ainsi que des les enrichir via des annotations et des classifications alternatives. Le modèle définit un système de gestion permettant le stockage, la visualisation, l’organisation, la recherche et l’annotation de ces documents. De plus, sachant que le processus d’annotation est long et laborieux (par exemple, lire une page d’un ancien manuscrit peut prendre plusieurs heures), nous proposons comme solution de publier ces documents sur Internet et d’offrir un outil d’annotation simple, afin de permettre à un grand nombre d’utilisateur de créer des annotations. L’assistant intégré est basé sur la technique du raisonnement à partir de cas. Il raisonne en utilisant les traces enregistrées des interactions entre les utilisateurs et le système, pour fournir de l’aide à l’utilisateur courant
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Hardwicke, Shannon Bragg. "An Analysis of Student Assistance Programs." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/27780.
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The purpose of this study was to examine a sample of students who participated in a student assistance program in Southwest Virginia. Using existing data from a school system in Southwest Virginia, this sample was observed to measure changes in student academic performance. The sample was also examined to determine the extent to which they instituted positive behaviors such as school attendance and reduction of disciplinary actions taken. In addition, this study assessed differences in demographic characteristics among student participants. Also studied was the extent to which gender differences related to academic performance and behavior.
Significant changes in students’ academic performance, attendance and disciplinary measures were established in the present study. Negative associations were established for those participating in the student assistance program and grade point average. Positive associations were found for those participating in SAP and attendance and disciplinary measures. No significant differences were yielded in the comparison of gender to academic performance and behavior.
SAP coordinators recorded that the majority of participants did improve since referral to program and most completed or currently remained in the student assistance program. However, a small percentage of students actually entered treatment programs following recommendations made to parents from the student assistance program committee.
This research assessed only the demographic and individual characteristics: gender, gifted or special education status, ethnicity and age. Therefore, other demographics such as socio economic status may offer additional explanation into academic and behavior outcomes of students involved in student assistance programs.Ph. D.
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Gilman, Ekaterina, Anja Keskinarkaus, Satu Tamminen, Susanna Pirttikangas, Juha Röning, and Jukka Riekki. "Personalised assistance for fuel-efficient driving." Elsevier, 2015. https://publish.fid-move.qucosa.de/id/qucosa%3A72830.
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Recent advances in technology are changing the way how everyday activities are performed. Technologies in the traffic domain provide diverse instruments of gathering and analysing data for more fuel-efficient, safe, and convenient travelling for both drivers and passengers. In this article, we propose a reference architecture for a context-aware driving assistant system. Moreover, we exemplify this architecture with a real prototype of a driving assistance system called Driving coach. This prototype collects, fuses and analyses diverse information, like digital map, weather, traffic situation, as well as vehicle information to provide drivers in-depth information regarding their previous trip along with personalised hints to improve their fuel-efficient driving in the future. The Driving coach system monitors its own performance, as well as driver feedback to correct itself to serve the driver more appropriately.
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SELLERS, DEANNA LYNN. "COACHING EXPERIENCE: INSTRUCTIONAL ASSISTANCE FOR CHANGE." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1147742193.
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Chachques, Juan Carlos. "Assistance circulatoire par cardiomyoplastie et aortomyoplastie." Paris 6, 1993. http://www.theses.fr/1993PA066722.
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La cardiomyoplastie, nouvelle technique de chirurgie cardiaque, a ete concue pour assister le cur defaillant, en l'enveloppant d'un lambeau electrostimule de muscle grand dorsal. Le muscle squelettique est stimule de maniere synchrone a la systole cardiaque. Ce muscle va permettre de renforcer la contraction systolique dans les cardiomyopathies ischemiques ou dilatees, ou de remplacer une partie du myocarde apres exerese d'un volumineux anevrysme ventriculaire ou d'une tumeur etendue. Apres cardiomyoplastie, le grand dorsal maintient sa force de contraction en augmentant sa resistance a la fatigue par une transformation graduelle de la totalite des fibres musculaires glycolytiques fatigables en fibres oxydatives resistantes a la fatigue. L'etude biochimique de ce muscle soumis a une stimulation prolongee montre une transformation totale de la myosine musculaire rapide en myosine lente proche de la myosine myocardique. L'etude par microscopie electronique montre une elevation de la densite mitochrondriale dans les cellules, fait demonstratif d'un metabolisme a predominance aerobie. D'autres assistances circulatoires par muscle squelettique stimule sont a l'etude: la double cardiomyoplastie (grand dorsal gauche et grand pectoral droit), la cardiomyoplastie de l'oreillette droite (atriomyoplastie), l'aortomyoplastie qui realise une contre-pulsion aortique
34
Šobrová, Jana. "Marketingová strategie asistenční společnosti Europ Assistance." Master's thesis, Vysoká škola ekonomická v Praze, 2006. http://www.nusl.cz/ntk/nusl-550.
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Cílem této diplomové práce je popsat a analyzovat marketingovou strategii asistenční společnosti Europ Assistance, na tomto konkrétním příkladu uvést specifika marketingu služeb a nalézt odpověď na otázku, čím je navíc odlišný marketing společností poskytujících asistenční služby. Diplomová práce obsahuje charakteristiku služeb, popisuje odvětví asistence a jednotlivých forem asistenčních služeb. Dále prezentuje hlavní firmy na trhu asistence. V hlavní části se zaměřuje na prezentaci a historii společnosti Europ Assistance, její novou strategii a její promítnutí do regionální organizace společnosti, jejích aktivit a proměně firemní identity společnosti.
35
Neroutsos, Efthymios. "Choreographing Traffic Services for Driving Assistance." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210984.
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This thesis project presents the web service choreography approach used for the composition of web services. It leverages the CHOReVOLUTION platform, a future-oriented and scalable platform, that is used to design and deploy web service choreographies. By using this platform, a use case that falls into the ITS domain is developed. This use case highlights the benefits of the web service choreography when used for the development of ITS applications. The necessary web services are designed and their interactions are defined through a choreography diagram that graphically represents how the services should collaborate together to fulfill a specific goal. By using the choreography diagram as input to the platform and by registering the web services on a web server, the choreography is deployed over the platform. The resulted choreography is tested in terms of services coordination. It is demonstrated that the platform can generate specific components that are interposed between the services and are able to take care of the services coordination for the use case created. Moreover, the execution time required to complete the choreography is measured, analyzed and reported under different conditions. Finally, it is shown that the execution time varies depending on the data that the services have to process and that the processing of huge data sets may lead to high execution times.Detta examensarbete behandlar hur man med hjälp koreografering av webbtjänster kan komponera webbtjänster. Det använder sig av CHOReVOLUTION plattformen, en framåtblickande och skalbar plattform, som används för att designa och verkställa koreografering av webbtjänster. Med denna plattform skapas ett användningsfall inom ITS-området. Detta fall belyser fördelarna med webbtjänskoreografi i samband med utveckling av ITS- applikationer. De nödvändiga webbtjänsterna designas och deras samspel definieras genom ett diagram för koreografin, som på ett grafiskt vis presenterar hur tjänsterna skall kollaborera för att nå ett specifikt mål. Genom att mata plattformen med data från diagrammet, och genom att registrera webbtjänster på en webbserver, verkställs koreografin. Med resultatet testas koordineringen av tjänsterna. I detta examensarbete visas det att plattformen kan skapa specifika komponenter som interagerar med tjänsterna, samt sköta koordineringen av tjänster som krävs för detta användningsfall. Exekveringstiden mäts, analyseras och rapporteras under flera olika omständigheter. Det demonstreras också att exekveringstiden varierar beroende på den data som tjänsterna måste behandla, och hur behandlingen av mycket stora datamängder kan leda till långa exekveringstider.
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Judice, Martha Arambel. "Medication assistance programs for Montana elders." Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/judice/JudiceM0805.pdf.
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Cadavid, Gómez Juan José. "Assistance à la méta-modélisation précise." Rennes 1, 2012. http://www.theses.fr/2012REN1S089.
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Les langages de modélisation spécifique au domaine (DSMLs) promettent une augmentation de la productivité pour la modélisation de systèmes à logiciel intensif. Pourtant, la définition d'un langage qui capte correctement la connaissance d'un domaine reste un défi. La définition d'un métamodèle qui capture précisément un domaine est une tâche difficile. Deux obstacles majeurs se posent: Tout d'abord, un métamodèle est une description de l'ensemble infini de tous les modèles conformes. Cependant, il n'existe aucune méthode pour tester qu'un métamodèle capture les modèles corrects et pas plus. Deuxièmement, les experts qui veulent construire un métamodèle doivent maîtriser deux langages radicalement différentes: un langage pour la structure du domaine (MOF) et un langage pour les règles de bonne formation (OCL). La plupart des métamodèles ne disposent que d'une structure de domaine, conduisant à métamodèles inexactes. Pour le premier obstacle, nous travaillons sur la sélection automatique d'un ensemble de modèles test-adéquats dans l'espace de modélisation capturé par un métamodèle. Pour le second obstacle, nous avons effectué uneétude empirique pour analyser la pratique dans 33 métamodèles qui utilisent MOF et OCL. On y remarque l'existence d'expressions OCL fréquemment utilisées, ce qui a conduit à un catalogue de 20 patrons de MOF et OCL. Ils sont utilisés pour proposer un ensemble initial de règles pour un métamodèle d'entrée, qui sont validées par l'expert avec l'ensemble des modèles de test. Nous effectuons un raffinement sur l'ensemble des règles à l'aide de la programmation génétique. Nous avons ainsi une approche complète pour assister la métamodélisation préciseDomain-specific modeling languages (DSMLs) promise increased productivity for modeling software-intensive systems. Still, the definition of a language that correctly captures the domain knowledge remains difficult. The definition of a metamodel that precisely captures a domain is challenging. Two majors obstacles arise: First, a metamodel is a description of the possibly infinite set of all conforming models. However, there is currently no systematic method to test that a metamodel captures all the correct models of the domain and no more. Second, domain experts who want to build a metamodel must master two different languages: an object-oriented model for the domain structure (MOF) and first order logic (OCL) to define well-formedness rules. We observe that most metamodels have only an object-oriented domain structure, leading to inaccurate metamodels. For the first obstacle, we argue that providing the expert with a qualified set of test data will allow him to ensure that it only captures correct models. We focus on the automatic selection of a test-adequate set of models in the modeling space captured by a metamodel. For the second obstacle, we perform an empirical study to analyze the state of practice in 33 metamodels that actually use MOF and OCL. We notice that there is a set of frequent OCL expressions, which resulted in a catalog of 20 patterns of MOF-OCL, used to suggest rules for an input metamodel, which the expert validates with a selected set of test models. We perform further refinement to rules by using genetic programming. We have thus a complete global approach to tackle the main two obstacles for assisting precise metamodeling
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Jurczyk, Michael Ulrich. "Shape based stereovision assistance in rehabilitation robotics." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001084.
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Norrman, Niklas, and Lise Fulland. "Swedish official development assistance : A quantitative evaluation." Thesis, Karlstad University, Faculty of Economic Sciences, Communication and IT, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-353.
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Minoiu, Enache Nicoleta. "Assistance préventive à la sortie de voie." Phd thesis, Université d'Evry-Val d'Essonne, 2008. http://tel.archives-ouvertes.fr/tel-00364073.
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L'objectif principal de cette thèse est le développement et l'implantation d'une assistance active pour l'évitement des sorties involontaires de la voie de circulation. Les caractéristiques de cette assistance se déclinent ainsi : - intervention dans les moments d'inactivité du conducteur alors que la sortie de voie devient imminente et rétablissement de la situation de maintien de voie, - action partagée avec le conducteur sur la direction du véhicule, - fonctionnement sur des routes à faible et à forte courbure, - efficacité quelle que soit la qualité de la route, à forte ou à faible adhérence.
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Apaydin, Aydin. "Social Assistance As A Poverty Alleviation Strategy." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613862/index.pdf.
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Through the globalization of economy, alleviating poverty has become one of the pivotal issues within social policy arrangement agendas for many countries all over the world. One of the primary and rifest instruments of the alleviation process is social assistance programs. It is an apodictic fact that the proportion of social assistance disbursements within general budgets of the states have been gradually increasing during the recent years. This situation is also true for Turkey. In this context, to what extent citizens steer away from poverty as the result of all these assistances and to what extent social assistance programs are effective on reproduction of poverty becomes a major question. . The basic objective of this study is to search for and understand the impact of social assistances provided by the state in Turkey on behalf of reducing the poverty conditions of the beneficiaries. The study is based upon a qualitative analysis of semi-structured interviews with beneficiaries of Altindag Social Assistance and Solidarity Foundation in Ankara, Turkey.
As a result of the study, it is observed that even though distributed assistances are found insufficient by beneficiaries, they have some significant impacts on reduction of poverty. It is understood that the distribution process itself reveals some key problems of the social assistance program of the state such as inefficient defition of poverty and the poor and creating a feeling of dependency for the beneficiaries. The socio-economic factors creating poverty of the beneficiaries are not well defined in Turkey. . In line with this finding one striking inference is that the assistances may
cause a kind of culture of poverty for a group of beneficiaries. Besides, assistance may have more impact on women&rsquos poverty as the women beneficiaries have a higher tendency to identify social assistance as a vital part of their survival while men beneficiaries identify social assistance as support to family. In terms of cash and /or goods transfers the beneficiaries identified transfers of coal, food and cash as very effective and essential for their survival, though the amount especially of cash transfers was less than required. All in all, as a concrete policy suggestion social assistance programs in both cash and in goods are effective for the reduction of poverty of the poor groups however it is not a total solution to create a take-off effect for the beneficiaries out of their poverty condition. The thesis suggests that social assistance programs should be improved in terms of accessibility and defition of poverty and the poor.
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Laquai, Florian Ulrich [Verfasser]. "Anticipation Assistance For Drivers / Florian Ulrich Laquai." München : Verlag Dr. Hut, 2015. http://d-nb.info/1074063120/34.
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Lundkvist, André. "3D Auditory Displays for Driver Assistance Systems." Doctoral thesis, Luleå tekniska universitet, Drift, underhåll och akustik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-97.
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A constantly increasing number of advanced driver assistance systems are implemented in cars.The driver is required to interpret the data reported by these systems while driving, and thereforeit is important to know how the information signals provided by such systems affect the driver.Driving relies to a large extent on vision, and most current advanced driver assistance systemsuse visual information, requiring visual attention from the driver. This conflicts with the drivingtask and leads to an increase in inattention and in cognitive and visual workload. Off-loadingvisually demanding tasks to other sensory modalities should be beneficial in terms of the driver’sability to divide attention resources. The aim of this thesis is to gain knowledge on how the driveris affected by information and interaction with driver assistance systems utilising 3D auditorydisplays. The goal is to provide knowledge of how to create robust interfaces that assist the driverwhile maintaining the necessary safety aspects while driving.The first paper investigated the importance of sound source placement within the car compartment.Since sound can be a very effective means of capturing attention, it could cause dangeroussituations if used in the wrong way. If sound is used to draw attention, one must be sure to notdraw the driver’s attention away from something more critical. The study showed that soundcan improve attention to the road when the sound source location is in front of the driver.Previous research has shown that a combination of sensory modalities increase the robustnessof perception. To avoid additional load on the visual modality, the second paper investigatedthe usefulness of vibrotactile information, in combination with auditory and/or visual signals.There was no significant increase in performance when adding vibration to a sound signal, butvibration and sound on their own led to similar performance. It can be argued, however, thatcombinations are still useful since they reduce the risk of an important signal being missed orneglected. In this investigation, all signals containing a visual component provided the fastestresponse time.The third paper investigated the usefulness of a 3D auditory display applied on a parking assistancesystem. A user study was conducted to evaluate drivers’ workload and performancewhen using different system implementations. It was found that a 3D auditory display was wellreceived as long as the sound only came from one direction at a time. Providing too much informationto the driver by using simultaneous sound sources at different locations was perceived asconfusing and annoying. In some cases, the effort required to perform a successful parking wassignificantly reduced when using a 3D auditory display system compared to a traditional parkingassistance system using only two sound sources. There were also indications that 3D soundcan reduce drivers’ mental workload and frustration with parking assistance systems.Placing sound sources in the car where they are most suitable can be difficult, especially if soundsources outside the car are required. The fourth paper investigated if it would be possible to use acrosstalk cancellation technique in combination with binaural recordings to reproduce 3D audiousing only two loudspeakers in the car compartment. It was found that when the loudspeakersare placed close to the ears of the driver, crosstalk cancellation can be effective inside the car compartment by avoiding strong reflections. Closely placed loudspeakers reduce filter creationcomplexity and improve sound quality.The fifth paper tackles the problems of within-the-head perception and front-back confusion,commonly found in binaural recordings and synthesis. It has been shown that reverberant binauralsounds are perceived more externalised than anechoic sounds, and tend to suffer less fromfront-back confusion. However, information sound signals should rarely be reverberant. Theidea was to create an image-source model with focus on early reflections and compare it withtraditional artificial head recordings. The image-source model performed better than the artificialhead recordings in terms of front-back confusion, and at the same time considerably limitedthe inherent room acoustics in the sound.In conclusion, meaningful and informative sound signals can raise driving performance if theyare placed in front of the driver. This encourages the driver to maintain focus on the road, byusing the attention capture capabilities of sound. A 3D auditory display can be beneficial forsystems such as parking assistance, since it helps lowering driver effort, mental workload andfrustration. Also, 3D auditory displays increase the drivers’ sense of safety and comfort, by augmentingthe drivers’ surrounding and thereby increasing their situational awareness. If a 3Dauditory display should be implemented in the car, a transaural system with crosstalk cancellationshowed promise for virtual sound source reproduction. However, binaural synthesis hasinherent problems that need to be addressed, specifically front-back confusion. It is hard to recommendusing crosstalk cancellation with binaural synthesis at the current state for locationcritical signals due to localisation confusion. However, using more than one modality for informationsignals makes the signals difficult to miss and could also help with the front-back confusionproblem, but further research is needed. If a transaural system with crosstalk cancellationis chosen as reproduction format, make sure to carefully select the loudspeaker placementsin order to avoid as many problems with filter generation as possible, since this will cause errorsin crosstalk suppression and affect the reproduction sound quality. Directive loudspeakersmounted in the neck rest, or ceiling, are good candidates for implementation.
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Amsden, Janet. "Problem statements referred to teacher assistance teams." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/28948.
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This study examined problems referred to Teacher Assistance Teams (TATs) during the 1988-89 school year in four Vancouver schools. Exploratory analyses were conducted to discover: (a) similarities or differences between problems referred to Teacher Assistance Teams and those referred to School-based teams (SBTs); and (b) similarities or differences between problem statements before and after the problem identification phase of the TAT process was carried out. Significant differences were found in the nature of problems referred to TATs and to SBTs. No significant differences were found in problem statements before and after problem identification was carried out.Education, Faculty of
Graduate
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Stewart, Jennifer M. "Three essays on unemployment and social assistance." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0028/NQ51015.pdf.
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Monette, Simon-Pierre. "Caractérisation hydraulique et thermique d'une assistance ventriculaire." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ65589.pdf.
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Stewart, Jennifer M. "Three essays on unemployment and social assistance /." *McMaster only, 1998.
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Henriksson, Tomas. "Driver Assistance Systemswith focus onAutomatic Emergency Brake." Thesis, KTH, Fordonsdynamik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-121306.
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This thesis work aims at performing a survey of those technologies generally called DriverAssistance Systems (DAS). This thesis work focuses on gathering information in terms ofaccident statistics, sensors and functions and analyzing this information and shall thruaccessible information match functions with accidents, functions with sensors etc.This analysis, based on accidents in United States and Sweden during the period 1998 – 2002and two truck accident studies, shows that of all accidents with fatalities or sever injuriesinvolving a heavy truck almost half are the result of a frontal impact. About one fourth of theaccidents are caused by side impact, whereas single vehicle and rear impact collisions causesaround 14 % each. Of these, about one fourth is collision with unprotected (motorcycles,mopeds, bicycles, and pedestrians) whereas around 60 % are collision with other vehicles.More than 90 % of all accidents are partly the result of driver error and about 75 % aredirectly the result of driver error. Hence there exist a great opportunity to reduce the numberof accidents by introducing DAS.In this work, an analysis of DAS shows that six of the systems discussed today have thepotential to prevent 40 – 50 % of these accidents, whereas 20 – 40 % are estimated to actuallyhaving the chance to be prevented.One of these DAS, automatic emergency brake (AEB), has been analyzed in more detail.Decision models for an emergency brake capable to mitigate rear-end accidents has beendesigned and evaluated. The results show that this model has high capabilities to mitigatecollisions.
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Glenn, Brian J. "The politics of mutual assistance in America." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421890.
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Jung, In-Young. "Social assistance in Korea in comparative perspective." Thesis, University of York, 2007. http://etheses.whiterose.ac.uk/11005/.
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