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Jain, Eakta. "Attention-guided Algorithms to Retarget and Augment Animations, Stills, and Videos." Research Showcase @ CMU, 2012. http://repository.cmu.edu/dissertations/208.
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Still pictures, animations and videos are used by artists to tell stories visually. Computer graphics algorithms create visual stories too, either automatically, or, by assisting artists. Why is it so hard to create algorithms that perform like a trained visual artist? The reason is that artists think about where a viewer will look at and how their attention will flow across the scene, but algorithms do not have a similarly sophisticated understanding of the viewer.
Our key insight is that computer graphics algorithms should be designed to take into account how viewer attention is allocated. We first show that designing optimization terms based on viewers’ attentional priorities allows the algorithm to handle artistic license in the input data, such as geometric inconsistencies in hand-drawn shapes. We then show that measurements of viewer attention enables algorithms to infer high-level information about a scene, for example, the object of storytelling interest in every frame of a video.
All the presented algorithms retarget or augment the traditional form of a visual art. Traditional art includes artwork such as printed comics, i.e., pictures that were created before computers became mainstream. It also refers to artwork that can be created in the way it was done before computers, for example, hand-drawn animation and live action films. Connecting traditional art with computational algorithms allows us to leverage the unique strengths on either side. We demonstrate these ideas on three applications:
Retargeting and augmenting animations: Two widely practiced forms of animation are two-dimensional (2D) hand-drawn animation and three-dimensional (3D) computer animation. To apply the techniques of the 3D medium to 2D animation, researchers have attempted to compute 3D reconstructions of the shape and motion of the hand-drawn character, which are meant to act as their ‘proxy’ in the 3D environment. We argue that a perfect reconstruction is excessive because it does not leverage the characteristics of viewer attention. We present algorithms to generate a 3D proxy with different levels of detail, such that at each level the error terms account for quantities that will attract viewer attention. These algorithms allow a hand-drawn animation to be retargeted to a 3D skeleton and be augmented with physically simulated secondary effects.
Augmenting stills: Moves-on-stills is a technique to engage the viewer while presenting still pictures on television or in movies. This effect is widely used to augment comics to create ‘motion comics’. Though state of the art software, like iMovie, allows a user to specify the parameters of the camera move, it does not solve the problem of how the parameters are chosen. We believe that a good camera move respects the visual route designed by the artist who crafted the still picture; if we record the gaze of viewers looking at composed still pictures, we can reconstruct the artist’s intention. We show, through a perceptual study, that the artist succeeds in directing viewer attention in comic book pictures, and we present an algorithm to predict the parameters of camera moves-on-stills from statistics derived from eyetracking data.
Retargeting video: Video retargeting is the process of altering the original video to fit the new display size, while best preserving content and minimizing artifacts. Recent techniques define content as color, edges, faces and other image-based saliency features. We suggest that content is, in fact, what people look at. We introduce a novel operator that extends the classic “pan-and-scan” to introduce cuts in addition to automatic pans based on viewer eyetracking data. We also present a gaze-based evaluation criterion to quantify the performance of our operator.
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Antelius, Henrik. "Retargeting a C Compiler for a DSP Processor." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2567.
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The purpose of this thesis is to retarget a C compiler for a DSP processor.
Developing a new compiler from scratch is a major task. Instead, modifying an existing compiler so that it generates code for another target is a common way to develop compilers for new processors.
This is called retargeting. This thesis describes how this was done with the LCC C compiler for the Motorola DSP56002 processor.
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Ruscombe, King Benjamin Charles. "The use of(pmhc x Fab') to Retarget Cytotoxic T-cells to Non-cognate Tumour Antigen." Thesis, University of Southampton, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509524.
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Vyas, Maulik [Verfasser], Peter [Gutachter] Nürnberg, and Von Strandmann Elke [Gutachter] Pogge. "Development of novel trispecific immunoligands (triplebodies) to retarget natural killer cells against chronic lymphocytic leukemia / Maulik Vyas ; Gutachter: Peter Nürnberg, Elke Pogge von Strandmann." Köln : Universitäts- und Stadtbibliothek Köln, 2016. http://d-nb.info/1140164694/34.
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Långfors, Stefan. "Reducering av släpförluster." Thesis, KTH, Maskinkonstruktion (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156652.
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För att öka köreffektivitet och säkerhet samt minska bromsarnas slitage är de flesta av Scanias lastbilar och bussar utrustade med en hjälpbroms, så kallad retarder. En retarder arbetar generellt sett enligt någon av följande två principer. Dels en elektromagnetisk variant av retarder som bromsar bilens kardanaxel, drivaxlar eller växellåda genom att utnyttja elektromagnetisk induktion, eller som i Scanias fall där man använder sig av en hydrodynamisk tillsatsbroms som bromsar bilens kardanaxel genom att slunga vätska inom ett skovelsystem. Bromsenergin övergår då till värmeenergi som i sin tur kyls bort av bilens ordinarie vattenkylsystem. Bromsmomentet styrs via trycket som råder mellan skovelbladen. Som mest överträffar retardern den effekt som bilens motor kan leverera. Då retardern inte används är skovelsystemet trycklöst. Men även då skapas det dock ett litet släpmoment i retardern eftersom den fortfarande roterar med växellådan. Detta släpförlustmoment är en bråkdel jämfört med det moment som skapas vid bromsning men ur bränslebesparingssynpunkt är det ändå viktigt att det hålls på minimal nivå. Detta examensarbete syftar till att utreda hur dessa släpförluster kan minimeras genom att via konceptstudier ta fram den bäst lämpade släpförlustreduceringsmetoden för Scanias retarder. En studie på konkurrenter och andra applikationer där inspiration skulle kunna inhämtas genomfördes och ett antal koncept togs fram. Därefter genomfördes en provkörning av en konkurrentretarder för ytterligare fördjupade kunskaper om problemet. Där samtidigt ett av koncepten med en bländarskiva mellan rotor och stator provades, dock med ett resultat som inte kunde anses tillräckligt. Efter detta kunde det konstateras att den bäst lämpade släpförlustreduceringsmetoden för Scania bör vara att helt frikoppla retardern från växellådan vid avaktivering då ett flertal av de största förlusterna som mättes upp kunde härledas in diverse tätningar och lager och inte till själva retardern. Denna frikoppling bör förslagsvis ske genom någon form av synkroniseringsinkoppling för att minimera vikt, storlek och kostnad. Slutligen kan det konstateras att kunskapen om vad som exakt sker i en retarder är begränsad och att det är ett komplext område. Vidare bör simuleringsmodeller användas för att minimera utvecklingsarbetet och ytterligare studier på hur en effektiv frikoppling kan användas bör genomföras. Nyckelord: retarder, släpförluster, växellådaIn order to increase the drive efficiency and safety as well as to minimize the brake wear, most Scania trucks and busses are equipped with a complementary brake system, also known as a retarder. A retarder generally works under one of the following two principles. An electromagnetic retarder that brakes the propeller shaft, drive axles or the gearbox using electromagnetic induction or as in Scania's case using a hydrodynamic brake that brakes the propeller shaft by pumping a fluid thru a rotating turbine shaped system. The braking energy then turns to heat which then cools off by the engine’s cooling system. The brake power is controlled by the fluid pressure in the retarder. At its maximum, the brake power exceeds the power of the engine. When the retarder is deactivated, the system is not pressurized. But even then, it creates a small slip loss, because the retarder is still rotating with the gearbox. This slip loss is a fraction compared to the braking torque than can be used, but from a fuel efficiency standpoint it is still important that it is kept at a minimum. The goal of this master thesis is to investigate how to minimize these losses. To find out which the best suited solution for Scania would be, different concept studies has been carried out. A study of competitors and other applications where further inspiration could be obtained was conducted and a number of concepts were developed. Thereafter a test run of a retarder from a competitor for further in-depth knowledge was conducted. At the same time one of the concepts with an aperture plate between the rotor and stator was tested on the competitor retarder. With a result that could not be considered sufficient. After this it was found that the most appropriate slip reduction method should be to completely disengage the retarder from the gearbox at deactivation since most of the losses that was measured could be traced to various seals and bearings and not to the retarder itself. The decoupling should be done through some kind of synchronization unit to minimize weight, size and cost. Finally it was observed that the knowledge about what’s exactly happening in the retarder is limited and that it is a complex area. Furthermore should the use of simulation models enhance to minimize the development work and further studies about how to disengage the retarder in the most effective way should be worked out Keywords: losses, retarder, slip
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Danielsson, Olov, and Johan Karlsson. "Radialtätning till Retarder." Thesis, Department of Management and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19467.
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This thesis has the overall objective to develop the optimum sealing system between the retarder and transmission. Today, there is a pressure-relief and two radial seals separation between the retarder and transmission. It has been found that carbon residue formation may occur between retarder axle and seal lips with, in some cases, leakage as a result.
We have in this thesis tried to explain the phenomenon of carbon residue, how it is formed and why it can be seen just on the seals? A rig test was conducted where we show how friction, speed, transmission temperature and mitigation phases of the retarder affects temperatures in the sealing environment. Factors affecting the coke structure are reported, together with proposals for measures that provide a mitigating seal environment. The material is PTFE, which is standard in the seals today; we believe meets all requirements for the sealing material.
The final recommendation is a tripartite cooperation between Scania, a petroleum company and an additive manufacturer where the different base oils and additive tested as multi-factorial experiments to identify what gives the best results. On transmission side we recommend to ensure a constant oil flow to the seal.
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Emile, Bruno. "Estimation de signaux retardes." Nice, 1996. http://www.theses.fr/1996NICE4996.
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Ce memoire propose une etude generale du probleme de l'estimation de temps de retard, dans le but de pouvoir reconnaitre, positionner, estimer et classifier des signaux sources inconnus mais independant entre eux. Differents cas de figure sont envisages: dans un premier temps, diverses solutions analytiques dans le domaine spectrale sont proposees pour deux signaux arrivant sur deux capteurs, une methode d'optimisation permet une amelioration des resultats. Dans un second temps, une methode large bande, qui peut etre consideree comme une amelioration de la methode de la correlation permet d'estimer les temps de retard de plus de signaux que de capteurs. En presence d'autant de capteurs que de sources, une solution basee sur l'identification temporelle de modeles ma multivariables utilisant les ordres superieurs est proposee. Pour terminer, le probleme de trajets multiples est traite avec un signal arrivant plusieurs fois decalle et amorti sur un seul capteur. Une methode d'identification aveugle a l'ordre 2 permet de remonter aux retards et au signal
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Schmidt, George A. "Ministry with the mentally retarded." Theological Research Exchange Network (TREN), 1990. http://www.tren.com.
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Mahler, Anna-Britt. "MULTIANGLE SPECTROPOLARIMETRIC IMAGER (MSPI)." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/193923.
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Substantial impacts of aerosols on climate and public health underscore the need for accurate characterization of atmospheric aerosol distributions and microphysical properties. The Multiangle SpectroPolarimetric Imager (MSPI) combines accurate multispectral, multiangle, and polarimetric technologies in a single instrument that images a wide swath on the Earth's surface to advance aerosol remote sensing capabilities. MSPI is required to have 3% radiometric uncertainty and 0.005 degree of linear polarization (DoLP) uncertainty. These are difficult requirements that push the limits of available technologies needed to perform space-based polarimetric imaging. This work examines three topics related to MSPI fabrication and calibration: polarization errors and their correction, achromatic, athermal, quarter wave retarder fabrication, and analysis of a polarization state generator (PSG) for MSPI polarization calibration confirmation.MSPI polarization errors may arise from surface geometry of the optical components, coatings, and quarter wave plates (QWPs). Static polarization errors can be calibrated out, but result in decreased SNR. Polarization errors that drift following calibration cannot be corrected, so a sensitivity analysis is used to set time-varying diattenuation and retardance magnitude tolerances. QWPs are required to work in concert with the PEMs to modulate the linear component of the Stokes vector. A three-material achromatic, athermalized QWP was designed, fabricated and its performance validated. Analysis indicated that the compound QWP was unlikely to meet the requirements if plates were specified by thickness. To address this, a method for QWP fabrication was developed that involves monitoring retardance during polishing. To verify MSPI performance, a PSG was built and calibrated which outputs weakly linearly polarized light with DoLPs varying from 0.0005 to 0.4 with 0.0005 uncertainty by passing nearly unpolarized light through a tilted plane parallel plate. The PSG was intended to act as a calibration standard based on calculated DoLP, but proved difficult to model. Therefore, the DoLP was instead measured to repeatability of 0.0005. Finally, example spectropolarimetric image data taken with MSPI was presented. Work on a follow-on prototype continues that will advance the technologies needed to realize the space-based, fully capable MSPI.
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Barrett, M. A. "From education to segregation : An inquiry into the changing character of special provision for the retarded in England, c. 1846-1918." Thesis, Lancaster University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378868.
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Kasese-Hara, Mambwe C. "Feeding behaviour and appetite in young children with non-organic failure to thrive." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4635/.
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The study reported in this thesis was aimed at investigating taste preferences and caloric compensation in one to two year old children with non-organic failure to thrive (FTT) as compared to normally developing children of the same age. The sample studied included 28 cases with non-organic FTT, and 28 controls with normal growth. The study comprised two experiments. The first tested the child's relative preference for sucrose sweetened solutions versus water. The test session included six 60 second presentations of tastant at three levels of concentration n i.e. water, 0.2 Mol sucrose solution, and 0.4 Mol sucrose solution, with at least 30 second intervals between presentations. The second experiment measured caloric compensation, by testing the child's intake from a standard meal on two occasions, after a pre-load of no-calorie or high-calorie drink. In addition meal time behavioural observations were made, and information about the child’s feeding history was obtained from parent reports. All children regardless of whether they were failing to thrive or not preferred 0.2 Mol sucrose solution to 0.4 Mol sucrose and to water. The energy intake of children with FTT was lower than that of controls, and meal-time behaviours showed some differences between groups in both the child and parent behaviours. Unlike the controls the FTT children showed no caloric compensation, but showed a trend towards the opposite of compensation. Analysis of growth data showed that FTT in the sample studied was present from birth.
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Myatt, J. R. "Evaluation research and early intervention : An analysis of evaluative issues in home-based interventions with young developmentally delayed children." Thesis, University of Exeter, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380783.
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Clarke, S. E. "An evaluation of the relationship between receptive speech and manual sign language with mentally handicapped children." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374860.
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Courbois, Yanick. "Image mentale et representation de l'espace : etude comparative d'adolescents retardes mentaux et d'enfants non-retardes." Lille 3, 1994. http://www.theses.fr/1994LIL30030.
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La fonction de l'image mentale dans la resolution de problemes spatiaux complexes portant sur les transformations visuelle d'une scene en trois dimensions est evaluee chez les enfants nonretardes (5 et 8 ans) et des adolescents lentaux. (age : 15;6ans age mental : 8 ans). Six epreuves d'imagerie mentale (generation, maintien, inspection et rotation de l'image mentale; deux epreuves de rotation de l'image en profondeur) et deux epreuves spatiales (reconstruction de l'apparence d'une scene apres sa rotation; coordination des perpectives) ont ete utilisees. Les resultats des enfants de cinq ans font ressortir une importance limitation des capacites d'imagerie et un faible niveau de performance aux epreuves spatiales. Chez les retardes mentaux, les resultats revelent un retard de developpement homogene et important aux epreuves spatiales et aux epreuves d'imaginerie (niveau de performance proche de celui des enfants de 5 ans). La mobilisation de procedures imagees dans la resolution de problemes spatiaux n'apparait cependant pas clairement dans les epreuves utilisees. La discussion insiste sur l'importante limitation des capacites d'imagerie qui semble caracteriser les personnes retardees mentales et les enfants d'un age inferieur a 8 ans. Elle aborde les problemes methodologiques lies a l'etude experimentale des images mentales chez ces sujetsThe function of mental imagery, in the resolution of complex spatial problems bearing on the visual transformations of a three dimensional scene, is assessed in non-retarded children (5 and 8 year old) and in teenagers with mental retardation. Six mental imagery tasks (image generation, maintenance, inspection and rotation; two tasks of image rotation in depth) and two spatial tasks (reconstruction of the appearance of a scene after its rotation; spatial perspective taking) were used. The five year old children's results showed an important limitation in mental imagery abilities and a weak level of performance in spatial tasks. For the mentally retarded, the results revealed an important and homogeneous retardation of development in spatial tasks and in imagery tasks (their performance level was similar to the one observed with the five year old children). However, the utilisation of imagery procedures for the resolution of spatial tasks does not seem obvious. The discussion insists on the important limitations of the mental imagery abilities which seems to characterise persons with mental retardation and children under eight. It also tackles the methodological difficulties in the experimental study of mental images with these subjects
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Leung, Hoi-san. "A boarding school mentally retarded children /." Click to view the E-thesis via HKUTO, 1994. http://sunzi.lib.hku.hk/hkuto/record/B31982074.
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Leung, Hoi-san, and 梁海珊. "A boarding school: mentally retarded children." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31982074.
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Leung, Hoi-san. "A boarding school :bmentally retarded children /." Hong Kong : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25945269.
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Malo, Suzanne M. "Association for Retarded Citizen's deliworks cafeteria /." Online version of thesis, 1990. http://hdl.handle.net/1850/11195.
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DeGracia, Kimberly C. "Sustainable, Flame-Retarded Poly(butylene terephthalate)." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1554453234742296.
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Lesaffre, Nicolas. "Ageing of flame retarded polylactic acid." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10098/document.
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Le but de ces recherches est d’étudier le vieillissement de l’acide polylactique (PLA) ignifugé. Trois vieillissement différents ont été étudiés i.e. température/ultra-violet (T/UV), température/humidité relative (T/RH) et température/ultra-violet/humidité relative (T/UV/RH). Afin de comprendre le rôle des retardateurs de flamme lors du vieillissement, l’étude de la dégradation du PLA vierge à tout d’abord été mené. Des méthodologies innovantes ont été développées et les propriétés physico-chimiques du polymère ont été caractérisées en fonction de la durée et du type d’exposition. Les mécanismes de dégradation dépendants du vieillissement (T/UV, T/RH et T/UV/RH) ont été élucidés et comparés à la littérature. L’influence des retardateurs de flamme (i.e. Mélamine, Polyphosphate d’ammonium et Cloisite 30B) lors du vieillissement des formulations ignifugées a ensuite été étudiée. Il a été prouvé que ces additifs ont une influence directe sur le vieillissement, au niveau des propriétés physico-chimiques et des mécanismes de dégradation. La masse molaire s’est révélée être cruciale dans la mesure où elle gouverne l’évolution des propriétés physico-chimiques du matériau durant le vieillissement, et donc sa durabilité. Sachant que le PLA est ignifugé par incorporation d’additifs retardateurs de flamme, il était primordial de comprendre l’effet du vieillissement sur ces additifs et donc leurs effets sur les propriétés feu du PLA. Il a ainsi été montré que les performances feu de ce matériau sont améliorées au cours du vieillissement, jusqu’à sa dégradation complète. Ces performances ont été corrélées avec l’évolution des propriétés physico-chimiques survenant au cours du vieillissement, présentant un rôle prépondérant sur la cinétique d’intumescenceThis work deals with the ageing of flame retarded (FR) Polylactic acid (PLA). The impact of three accelerated ageing conditions i.e. temperature/ultra-violet (T/UV), temperature/relative humidity (T/RH) and temperature/ultra-violet/relative humidity (T/UV/RH) was studied. In order to understand the role of fire retardant additives on ageing of flame retarded PLAs, the first study was focused on neat PLA. Innovative methodologies were developed, the change in physico-chemical properties of the polymer was characterized as a function of ageing exposure and ageing duration. Moreover, the mechanisms of degradation occurring during T/UV, T/RH and T/UV/RH exposure were elucidated and compared to the literature. Then, the influence of flame retardants (i.e. Melamine, Ammonium polyphosphate and Cloisite 30B) on the ageing behavior of FR-PLAs was investigated. FR fillers were evidenced to have a direct influence on physico-chemical properties and mechanisms of degradation of the material during ageing. The molecular mass was reported to be a crucial parameter, as it is related to the physico-chemical properties and thus to the durability of the material. The main goal of flame retardants is to improve the flammability of PLA thus the effect of ageing on the fire properties of PLA was determined. It is noteworthy that the fire properties of flame retarded PLA are improved during ageing, until the complete degradation of the materials. These surprising performances were found to be correlated to the change in physico-chemical properties which play a key role on the kinetics of intumescence
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De, Kock Daniel Jacobus. "Die pastorale versorging van 'n gesin met 'n erg gestremde kind / Daniel Jacobus de Kock." Thesis, North-West University, 2003. http://hdl.handle.net/10394/449.
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It is a terrible shock to parents when they hear from a medical specialist that
their child is not normal like other children, but retarded. Such parents are
traumatized to the same extent as other parents may be when they lose a
child to death. They go through the same phases of shock, denial, anger and
mourning. A complicating factor is that these parents cannot recover from
this loss as they are reminded of this sorrowful fact on a daily basis and to an
increasingly difficult level.
The aim of this investigation is firstly to determine the effect that severely retarded
child has on the functioning of the family. Secondly, to determine what the needs
of such a family are in respect of pastoral care; and finally, to provide guidelines for
the care of a family with a severely retarded child.
This research is based on the practical-theological model of Zerfass and
comprises:
• A basis-theory that reveals Biblical perspectives that have been researched
about the topic;
• A meta-theoretical assessment based on the literature survey (also in
related fields), as well as empirical research. The empirical study is based
on a number of interviews that were undertaken with families who have
severely retarded children;
• Theory for application that proposes guidelines for the pastoral care of the
family with a severely retarded child in their care.
The research results reveal lacunas that exist in available literature in respect of
pastoral care for families with a severely retarded child. It is also clear from the
results of the empirical research that ignorance about this type of pastoral care is
common.
The conclusion of this research is that these families who have severely retarded
children do not enjoy the benefit of proper pastoral care. This happens because
both pastoral care-givers as well as members of the parish underestimate the
influence that such a child has on the family.
The research results could assist in educating people who are, to a large extent,
ignorant in this regard; as well as equipping pastoral care-givers with guidelines to
care for families with severely retarded children.Thesis (M.Th. (Pastoral))--North-West University, Potchefstroom Campus, 2004.
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Tharp, Jeffrey Scott. "DESIGN AND DEMONSTRATION OF MEANDERLINE RETARDERS AT INFRARED FREQUENCIES." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2813.
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Meanderline structures are widely used as engineered birefringent materials for waveplates and retarders at radiofrequencies, and have been previously demonstrated at frequencies up to 90 GHz in the millimeter-wave band. In this dissertation, we present results related to the modeling, fabrication, and experimental characterization of meanderlines across the range from 30 to 100 THz, in the long-wave and mid-wave infrared bands. Specific issues addressed in these new designs include spectral dispersion and angular dependence of the retardance, as well as axial ratio and throughput. The impact resulting from the infrared properties of the metals and dielectrics is explicitly included throughout. Several novel applications are identified, including integrated circular polarizers, reflective waveplates, and large-area polarization tags.Ph.D.
Optics and Photonics
Optics and Photonics
Optics PhD
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蕭岳殷 and Ngok-yun Siu. "Social skills training for the mentally retarded." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31976712.
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Siu, Ngok-yun. "Social skills training for the mentally retarded." [Hong Kong : University of Hong Kong], 1991. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13115418.
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Keeling, David. "Novel thin film optical modulator/tunable retarder." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/29595.
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Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2007.Committee Chair: A. Rahman Zaghloul ; Committee Members: W. Russell Callen and Doug Yoder. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Orenstein, Marc. "Locked-in syndrome post-traumatique d'installation retardee." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR1M166.
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Picot, Eric. "La pigmentation retardée : aspects photobiologiques et intérêt de la chromamétrie." Montpellier 1, 1991. http://www.theses.fr/1991MON11081.
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Partisani, Marialuisa. "Valeur pronostique du déficit de l'hypersensibilité retardée cutanée dans la maladie de Hodgkin." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR1M053.
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Albenois-Gondelaud, Marie-Christine. "Urticaires et angiooedemes retardes a la pression : analyse de 60 cas du geru." Aix-Marseille 2, 1990. http://www.theses.fr/1990AIX20838.
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Bartos, Elias, and Kristian Ahlberg. "Minimizing of Drain Leakage on a Scania Retarder." Thesis, KTH, Fordonsdynamik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48587.
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To enhance the drivability and increase safety a major part of Scania’svehicles is fitted with a retarder. The retarder is a complementary brake system that assists the vehicles mechanical brakes. When running a retarder some oil leakage can occur. The main source to the leakage is oil sump ventilation but there is also some contribution from the solenoid valve block that controls the retarder. Test results from the test rig shows that with rather simple methods the oil leakage in form of oil mist can be captured. The efficiency of for instance concept 1 with half the volume and a chicane interior was as high as 99 to 100 %. For the concept 2 with the expanded metal filter the efficiency was in the order of 96 to 100 %. From testing it has also become clear that there is a problem to feed the oil back into the oil sump. Initial tests shows that the retarder is rather sensitive regarding the placing of the feedback channel. It is considered that the best option is to only use the feedback channel that enters the internal drain of the retarder. Measurements show that the airflow in the tube from the accumulator could reach velocities up to 67 m/s. It is considered that the best solution is to have two separate chambers, one for the accumulator and one for the oil sump ventilation, the safety valve and the proportion valve. The reason for this is that the combination of oil in a chamber together with high airflow from the accumulator is disastrous and the retarder leaks far worse compared to original. The conclusion is therefore that it is important to separate air from the accumulator from places where oil can occur. Tests also revealed that the size of an external volume is not of any great importance when it comes to colleting oil. There was no significant difference in between of using a volume of 0.64 l or 0.19 l. However regarding overfilling it is favorable to have a larger volume since this increases the retarder’s capability to withstand oil leakage when it is overfilled.
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Gabre, Pia. "Studies on oral health in mentally retarded adults /." Stockholm, 2000. http://diss.kib.ki.se/2000/91-628-4525-x/.
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Martin, Laurie Louise 1962. "CHILDREN'S COMMUNICATIVE ADJUSTMENT TO RETARDED AND NONHANDICAPPED PEERS." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/291917.
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This study investigates the question of how the combination of different-age listeners and developmentally delayed individuals affects preadolescents' communication. While being videotaped in a lounge-like setting, two 11-year-old females separately interacted with three different same sex listeners: a younger nonhandicapped child (6 years old); a nonhandicapped peer (11 years old); and a retarded peer (also 11 years old). Measures were taken on the number, duration, and content of their initiated interactions. The results demonstrated that the speaker who addressed the less verbally adept retarded peer made more communicative adjustments than the speaker who talked with the more verbally advanced retarded peer, more than when she talked with the two nonhandicapped listeners. Also, both speakers seemed to talk to the younger child much like they spoke with the normal same-age peer. This finding suggests that the age of the listeners had less influence on the speaker's linguistic behavior than the developmental level of the listener. (Abstract shortened with permission of author.)
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Evans, Jennifer D. (Jennifer Dawn). "Service Delivery in Organizations for the Mentally Retarded." Thesis, University of North Texas, 1993. https://digital.library.unt.edu/ark:/67531/metadc500356/.
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This study analyzes effective service delivery in organizations serving the mentally retarded. Qualitative organizational analyses of three community care facilities were compared to assess effectiveness. Data were gathered by systematic observations, field notes, documents, and employee interviews. Program analysis, the funding system of service delivery, and staff attitudes best indicated effective service. I concluded that effectiveness would improve by focusing on individual consumer needs and further defining service delivery.
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Nishiguchi, Junya. "Retarded functional differential equations with general delay structure." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225381.
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Wendelius, Ludvig. "Development of a SimulationModel of an Automatic Gearbox." Thesis, Umeå universitet, Institutionen för fysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-58488.
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A simulation model for an automatic gearbox with primary retarder has been constructedand implemented, in this thesis. Together with other modelled vehicle components, thismodel could for example be used for fuel consumption estimation or optimizing vehicleparameters.The mechanical components and the control system inside the automatic gearbox weremodelled separately and then assembled into the nal gearbox model, using the objectorientedprogramming language Modelica. Modelica ensures that each individual componentcan be reused in other models.The gearbox model was validated through a number of test cycles designed to capturedierent vehicle behaviours. The test cycles were recreated in the simulation environmentand the simulation results could be compared to a real vehicle performing the same tests.Validation showed that the model succeeded in its goal, that the implemented model isreproducing similar behaviour as the real gearbox. With gear shifts taking place in aboutthe same situations and converter locking/unlocking occurring the same time in the simulationsas in the real vehicle testing.I det här examensarbetet har en simuleringsmodell för en automatisk växellåda med primär retarder utvecklats och implementerats. Tillsammans med andra modeller från fordonoch drivlina skulle denna simuleringsmodell kunna användas för att uppskatta ett fordonsbränsleförbrukning eller till att optimera olika fordonsparametrar.De olika mekaniska komponenterna samt kontrollsystemet i växellådan modellerades separat.Dessa modeller kunde sedan sammanfogas för att bygga den slutliga växellådsmodellen.Alla modeller implementerades i det objektorienterade programmeringsspråket Modelica,som tillåter en stor återanvändningsbarhet till vardera enskild komponent.Den implementerade modellen verierades genom ett antal provcykler, utformade för attfånga olika beteenden hos växellådan. Dessa cykler har återskapats i simuleringsmiljön ochmed det kunde resultat från simuleringar jämföras mot data från ett verkligt fordon somutförde samma prov.Från verieringen har slutsatsen dragits att modellen uppfyllde målen med projektet. Målen var, att den slutliga simuleringsmodellen visar ett liknande beteende som en växellåda i ett verkligen fordon. Växlingar och låsning/upplåsning hos momentomvandlareninträande vid ungefär samma situationer i simuleringarna som i provningen med det verkligafordonet.
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Thomas, Peter G. "Vigilance performance of mildly mentally retarded children and adults /." Title page, contents and summary only, 1989. http://web4.library.adelaide.edu.au/theses/09PH/09pht4593.pdf.
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Millichamp, Catherine Jane. "Sharing and social responses during mentally retarded children's play." Thesis, University of Canterbury. Psychology, 1987. http://hdl.handle.net/10092/4520.
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Sharing is an important skill which contributes to the social, verbal, cognitive and motor development of children. In this thesis, seven experiments were conducted to evaluate the effects of antecedent and training conditions on sharing of mentally retarded children. The aim of these experiments was to examine ways in which sharing and positive social behaviour could be facilitated. In Experiment 1, the effects of laboratory conditions were assessed with 62 mentally retarded boys. It was found that 56 participants did not share in this context. Experiment 2 was designed to compare the effects of laboratory versus classroom sessions on sharing and collateral behaviours. An alternating treatments design revealed no significant differences between conditions. Sharing remained at low levels for all participants. In Experiment 3, the effects of familiar versus novel play materials were compared in an alternating treatments design. Sharing and positive social responses occurred at low levels during both conditions. Experiment 4 involved the use of an alternating treatments design to investigate the effects of different numbers of play materials. Again, no socially significant differences were noted. Experiment 5 was designed to evaluate the effects of individual versus group reinforcement contingencies on sharing with mildly mentally retarded boys. The results showed that both contingencies substantially increased sharing, with the individual contingency producing slightly higher levels of sharing. Finally, Experiments 6 and 7 investigated the effects of say-do and do-say correspondence training procedures, respectively. A changing criterion design was employed in both experiments to assess the effects of intervention on sharing and social behaviours during play. Verbal sharing and physical sharing were trained separately. The results showed that both procedures were effective in facilitating sharing and social behaviours. Generalization occurred across settings and behaviours. In sum, these experiments demonstrated that antecedent conditions were ineffective in the facilitation of sharing, whereas consequent procedures had marked effects. Theoretical explanations regarding the efficacy of the training procedures and implications for mentally retarded children were discussed.
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Burke, Daniel. "Morality in Law: Capital Punishment and the Mentally Retarded." Miami University Honors Theses / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1111150529.
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Lee, Calvin. "An ethnographic study of profoundly mentally retarded deinstitutionalized adults." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/29236.
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This study was concerned with the behaviours, actions, and patterns of interaction of profoundly mentally retarded non-verbal deinstitutionalized adults (PMRs). The methodology utilized field research techniques which are observations of participants in their natural setting. The observations were of five profoundly retarded deinstitutionalized adults and took place over a three month period in the participants' group home and day program.
The observations were recorded daily in a field note book and were later transcribed into a protocol format. The protocols were then coded. The coding categories were developed by the researcher through abstractions which emerged from the data.
The coding categories revealed insights into the PMRs. The participants exhibited a heirarchical social order, displayed consistent seating patterns, and understood property ownership. The participants were noted to anticipate daily-routines such as meals, outings, and bedtimes.
The researcher observed preferences by the individual participants for specific staff members. One participant appeared to display a heterosexual erotic preference for one staff member. Autoerotic sexuality was observed in three participants. Individual preferences for food, music, activities, and people were also displayed by the participants.
Stereotypic behaviours were prevalent behavioural patterns exhibited by participants who had individual and unique stereotypic motions. The coding of the stereotypic behaviour revealed that emotional responses were present during stereotic movement. The researcher hypothesized that stereotypic movement was an observable response to the inner thoughts or ideations of the participants. The literature on sensory deprivation suggests that individuals when exposed to a montonous environment develop their own sensory data (hallucinations) in the reticular area of the brain. Stereotypic behaviour appears to be an adaptation by the individual to monotony through self generated stimuli. The data from this study suggests that the degree of environmental stimulation influences the prevalence and incidence of stereotypic behaviour. There were data to support the hypothesis that the participants' stereotypic movement was interactive with the degree of environmental stimulation and the specific like or dislike of the participant to the stimulation.Education, Faculty of
Educational and Counselling Psychology, and Special Education (ECPS), Department of
Graduate
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McEldowney, Scott. "Vortex Retarders." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194018.
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This dissertation addresses the creation of polarization vortex beams. Vortex retarders are components with uniform retardance but a fast axis which rotates around its center with can create polarization vortices. The goal was to develop a simple method for producing vortex retarders for visible wavelengths, with a continuous fast axis, and for multiple vortex modes.The approach was to use photo-aligned liquid crystal polymers (LCP). The target was a halfwave retardance for wavelengths in the range of 540~550nm. A photo-alignment layer was spin-coated onto a substrate, baked, and alignment was set through exposure to linear polarized UV (LPUV) light. The alignment layer was exposed through a narrow wedge shaped aperture located between the substrate and polarizer. Both the polarizer and substrate were continuously rotated during exposure process in order to create a continuous variation in photo-alignment orientation with respect to azimuthal locations on the substrate. The mode of the vortex retarder was determined by the relative rotation speeds. The LCP precursor was spin-coated and subsequently polymerized using a UV curing processes. Elements produced were analyzed by measuring the space variant Mueller Matrix of each component. Our measurements demonstrated that the vortex retarders were half wave plates with a continuous fast axis orientation. Measurement of the center region of the vortex retarders identifies a 100-200um region of disorientation. At 0.5mm resolution, a high depolarization index in the center of the vortex retarders was observed. The DOP was low in the center for a horizontal linear polarized input field but remained high for circular polarized input.The viability of these components was assessed by determining the point spread matrix (PSM) and the optical transfer matrix (OTM) and comparing these to theoretical calculations. The agreement between the measured and predicted PSM was excellent. The major difference was the non-zero response in the m03 and m30 elements indicating circular diattenuation. The OTM comparison between measured and predicted demonstrated an excellent quantitative match at lower spatial frequencies and a good qualitative match at higher spatial frequencies. Measured results confirm that vortex retarders produced using photo-aligned LCP produce near theoretical performance in an optical system.
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Ong, Winston Wee Meng. "Inspection time and responding time measures in mildly retarded and non-retarded subjects in the performance of simultaneous, successive and stimulus-response incompatible tasks /." Title page, contents and abstract only, 1992. http://web4.library.adelaide.edu.au/theses/09SPS/09spso58.pdf.
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Steinsland, Vidar. "Modeling and Control of Retarder using On/Off Solenoid Valves." Thesis, KTH, Reglerteknik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-105880.
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The Retarder is one of the main components in Scania's trucks' braking system and is used to brake down the truck and for maintaining a steady speed on descents. This Master's Thesis aims to investigate if the current system which uses a proportional valve to control the air pressure in the Retarder, can be replaced with two on/o® solenoid valves and a pressure chamber to control the air pressure, which would result in a cheaper and more robust system. By varying the air pressure, the braking torque in the truck can be regulated. A model including electrical drives from a control unit, valves, pressure chamber and a regulating valve is derived. Using the model as reference, a controller is designed and implemented to control the valves, and thereby the pressure. Based on experience from employees at Scania and former research on on/o® control of an Exhaust Gas Recirculation system, a regular PID-controller is used as the base in the control. A pulsing scheme where the valves are activated separately is used to distribute the control signal to the two valves. Di®erent ways of applying the control signal are investigated, whether the valves run digital, i.e. 0 % or 100 %, or continuously by varying the PWM signal. A boosting action using non-linear control, and prediction are investigated in order to improve the control performance in such way that the required time response and robustness is obtained. The controller is eventually tested and veri¯ed on the real system.
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Liu, Xiyuan. "Stability test and stability conditions for retarded delay differential systems /." [S.l.] : [s.n.], 1985. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=7778.
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Ho, Dong-Chyr Morreau Lanny E. "Analysis of problem behavior in an institution for retarded persons." Normal, Ill. Illinois State University, 1985. http://wwwlib.umi.com/cr/ilstu/fullcit?p8514771.
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Thesis (Ed. D.)--Illinois State University, 1985.Title from title page screen, viewed June 7, 2005. Dissertation Committee: Lanny Morreau (chair), John Brickell, Jane Lee, Alan Repp, Mark Swerdlik. Includes bibliographical references (leaves 97-106) and abstract. Also available in print.
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Orrison, Nancy Lynn Robertson. "Adequate and appropriate intelligence testing of moderately mentally retarded children." W&M ScholarWorks, 1992. https://scholarworks.wm.edu/etd/1539618394.
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The intelligence of moderately mentally retarded (MR) children is difficult to assess because they often have concurrent physical or sensory impairments which adversely affect their test performance. The purpose of this study was to determine if necessary adaptations are made when assessing children who are moderately MR for educational placement in the State of Virginia.;A survey was sent to public school psychologists in the State of Virginia as identified by the 1990-91 roster obtained from the Virginia Department of Education. The survey inquired as to their normal methods of intelligence testing used with the moderately mentally retarded population. The results of the survey and a review of literature were used to determine methods of successful assessment of children who are moderately mentally retarded.;The results of the study indicate that more than one intelligence measure must be made to validate the results. The inclusion of adaptive behavior scales is necessary to satisfy the criteria for mental retardation. Modifications are often necessary to prevent physical handicaps from suppressing the child's scores on standard intelligence tests. What is needed are precisely stated modifications, included with standard intelligence tests, which accommodate for the needs of moderately mentally retarded children.
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Forkas, Wendy Maxine. "Assertiveness training with individuals who are moderately and mildly retarded." Scholarly Commons, 1997. https://scholarlycommons.pacific.edu/uop_etds/2658.
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This study examined the effectiveness of group assertiveness training with individuals who are mildly and moderately mentally retarded. There were 20 participants with 10 each in the control and the experimental group. Each group received the pretest and posttest measures. The experimental group also received four sessions on assertiveness training adapted from the Elwyn Institute's Personal Adjustment Manual, Volume II, Assertiveness Training. The training was developed for moderately and mildly mentally retarded individuals using these strategies: educational lectures, modeling, role-playing, and feedback. The control group received only the pretest and posttest measures. Assertiveness was measured by using three measures: two questionnaires, one consisting of 25 situational questions eliciting individuals to respond as they would in real life and the Chapman Assertiveness Instrument; and one behavioral observation check off chart. A univariate repeated measures anaLysis of variance was completed for each measure. There were significant results with all three measures indicating that the training was effective in increasing assertiveness.
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Cecchettini, Paul David. "Cognitive-behavioral therapy with depressed, involuntarily confined mentally retarded individuals." Scholarly Commons, 1993. https://scholarlycommons.pacific.edu/uop_etds/2764.
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The purpose of this study was to examine whether cognitive-behavioral therapy could be effective in alleviating depression in mildly mentally retarded or borderline intelligence individuals. It was hoped this would prove to be a viable alternative or adjunct to medical interventions in treating depression with this population. Subjects participated in one of two cognitive-behavioral groups for 12 weeks. Two other treatments (two exercise and two structured, talk-oriented groups) served as control groups; these group members had the same daily routine as individuals in the treatment group. Control group subjects were also administered the same pre- and post-test. Seventy-three subjects were referred to participate, all on a volunteer basis. Subjects resided at the Stockton Developmental Center. All subjects were at the Center involuntarily, with 39 percent committed to the Center due to penal code violations. The Beck Depression Inventory (BDI) was used as a pre-screening device, and subjects scoring in the clinical ranges of depression on the BDI were included in the study. Fifty-eight subjects met pre-screening criteria and were included. Based on BDI scores, subjects were assigned to one of three ranges of depression specified for the BDI. Subjects in each range were then matched on BDI scores and randomly assigned to the treatment groups. The pre- and post-test measure was the Emotional Problems Scales, which include both a personality inventory with questions answered by each individual and a behavior rating scale answered by the individual's primary counselor. Scores on depression and related scales were examined through the multivariate analysis of variance procedure. Forty-nine subjects were included in the final statistical analysis. There was no significant finding across groups for a decrease in depression or for other variables. No treatment proved more effective than any other. An examination of subject characteristics for those demonstrating the highest levels of improvement following treatment found that subjects with scores initially in the extremely severe range on depression were most likely to evidence change in a positive direction. Those who demonstrated improvement in the cognitive-behavioral groups tended to have IQ's over 62.
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Longo, Mirko. "Classical electrodynamics: retarded potentials and power emission by accelerated charges." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/12028/.
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L'obiettivo di questo lavoro è quello di analizzare la potenza emessa da una carica elettrica accelerata. Saranno studiati due casi speciali: accelerazione lineare e accelerazione circolare. Queste sono le configurazioni più frequenti e semplici da realizzare. Il primo passo consiste nel trovare un'espressione per il campo elettrico e il campo magnetico generati dalla carica. Questo sarà reso possibile dallo studio della distribuzione di carica di una sorgente puntiforme e dei potenziali che la descrivono. Nel passo successivo verrà calcolato il vettore di Poynting per una tale carica. Useremo questo risultato per trovare la potenza elettromagnetica irradiata totale integrando su tutte le direzioni di emissione. Nell'ultimo capitolo, infine, faremo uso di tutto ciò che è stato precedentemente trovato per studiare la potenza emessa da cariche negli acceleratori.
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Marfaing, Koka Anne. "Role de la chemokine rantes dans la reaction d'hypersensibilite retardee." Paris 11, 1997. http://www.theses.fr/1997PA11T023.
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Barron-Johnson, Tamara. "Using Music in Teaching Social Skills to Mentally Retarded Subjects." DigitalCommons@USU, 1987. https://digitalcommons.usu.edu/etd/6199.
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The purpose of this study was to determine the extent to which Melodies to Assist Social Interaction (MASI) would affect the social skills performance of the educable mentally retarded.
The study employed a pretest-posttest control group design with an N of 27 mentally-retarded subjects. It also employed a one-group pretest-posttest design with an N of 8 non-mentally retarded subjects.
All of the subjects received a pre- and post-score for their social skills performance level. Nineteen of the mentally-retarded subjects and all eight non-mentally retarded subjects received the MASI social skills teaching program as part of their regular curriculum.
The pre- and post-treatment performance was analyzed by a correlated means t-test. An analysis of covariance was used in which the posttest means were compared using the pretest means as a covariate.
It was concluded that MASI did not have an impact, positive or negative, on the social skills performance level of the subjects.