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1
Pathare, Sneha P. "Detection of black-backed jackal in still images." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97023.
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Thesis (MSc)--Stellenbosch University, 2015.ENGLISH ABSTRACT: In South Africa, black-back jackal (BBJ) predation of sheep causes heavy losses to sheep farmers. Different control measures such as shooting, gin-traps and poisoning have been used to control the jackal population; however, these techniques also kill many harmless animals, as they fail to differentiate between BBJ and harmless animals. In this project, a system is implemented to detect black-backed jackal faces in images. The system was implemented using the Viola-Jones object detection algorithm. This algorithm was originally developed to detect human faces, but can also be used to detect a variety of other objects. The three important key features of the Viola-Jones algorithm are the representation of an image as a so-called ”integral image”, the use of the Adaboost boosting algorithm for feature selection, and the use of a cascade of classifiers to reduce false alarms. In this project, Python code has been developed to extract the Haar-features from BBJ images by acting as a classifier to distinguish between a BBJ and the background. Furthermore, the feature selection is done using the Asymboost instead of the Adaboost algorithm so as to achieve a high detection rate and low false positive rate. A cascade of strong classifiers is trained using a cascade learning algorithm. The inclusion of a special fifth feature Haar feature, adapted to the relative spacing of the jackal’s eyes, improves accuracy further. The final system detects 78% of the jackal faces, while only 0.006% of other image frames are wrongly identified as faces.
AFRIKAANSE OPSOMMING: Swartrugjakkalse veroorsaak swaar vee-verliese in Suid Afrika. Teenmaatreels soos jag, slagysters en vergiftiging word algemeen gebruik, maar is nie selektief genoeg nie en dood dus ook vele nie-teiken spesies. In hierdie projek is ’n stelsel ontwikkel om swartrugjakkals gesigte te vind op statiese beelde. Die Viola-Jones deteksie algoritme, aanvanklik ontwikkel vir die deteksie van mens-gesigte, is hiervoor gebruik. Drie sleutel-aspekte van hierdie algoritme is die voorstelling van ’n beeld deur middel van ’n sogenaamde integraalbeeld, die gebruik van die ”Adaboost” algoritme om gepaste kenmerke te selekteer, en die gebruik van ’n kaskade van klassifiseerders om vals-alarm tempos te verlaag. In hierdie projek is Python kode ontwikkel om die nuttigste ”Haar”-kenmerke vir die deteksie van dié jakkalse te onttrek. Eksperimente is gedoen om die nuttigheid van die ”Asymboost” algoritme met die van die ”Adaboost” algoritme te kontrasteer. ’n Kaskade van klassifiseerders is vir beide van hierdie tegnieke afgerig en vergelyk. Die resultate toon dat die kenmerke wat die ”Asymboost” algoritme oplewer, tot laer vals-alarm tempos lei. Die byvoeging van ’n spesiale vyfde tipe Haar-kenmerk, wat aangepas is by die relatiewe spasieëring van die jakkals se oë, verhoog die akkuraatheid verder. Die uiteindelike stelsel vind 78% van die gesigte terwyl slegs 0.006% ander beeld-raampies verkeerdelik as gesigte geklassifiseer word.
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Bussiahn, Frans Ernst Carl. "The diet of the black-backed jackal (Canis mesomelas) and caracal (Felis caracal) in the Eastern Cape, South Africa." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1006489.
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The black-backed jackal (Canis mesomelas) and the caracal (Felis caracal) are considered by most farmers in the Eastern Cape to be responsible for excessive livestock losses (sheep and goats) and are, as such, hunted extensively within the Province. Stomach content analyses of individuals killed during predator control operations indicate that caracal are opportunistic hunters of small to medium-sized mammals, preying predominantly on antelope within farmland. Black-backed jackal are opportunistic omnivores, preying predominantly on livestock and antelope in farmland, while invertebrates and antelope constitute the major food items within a game reserve. The diet of caracal was found to be largely influenced by the age of individual animals with old and young animals being the predominant killers of livestock, whereas black-backed jackal diet is influenced primarily by the social structure exhibited by the species, with male animals exhibiting a marked summer peak in livestock killing, due to the increased energetic demands of parental care associated with a long term pair bond. Two caracal (a sub-adult male and adult female), were radio-tracked within farmland for a total of twelve months, yielding the smallest recorded homerange sizes for the species to date (2.1km² and 1.3km² respectively). No livestock losses were recorded within these homeranges for the duration of the study. These data suggest a relatively high abundance of caracal within Lower Albany and further illustrate that individual animals are capable of preying solely on natural prey species over an extended period, when occurring within livestock farming areas. The analysis of local hunt club records and questionnaires revealed a higher incidence of local black-backed jackal (15.2 PD/Kill), than caracal (34.7 PD/Kill), with a marked seasonal peak in kills, for both species, occurring during summer months. The use of hound packs was found to be more effective in reducing the overall abundance of caracal than black-backed jackal, as this technique was seen to eliminate more adult female caracal than black-backed jackal, during the respective breeding season of each species. Local hunt club owners and farmers were more accurate in identifying problem black-backed jackal (74%), than caracal (59%). Recommendations are presented for minimizing stock losses through the application of selective control of specific problem animals, the use of various control measures and encouraging natural prey abundance.
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Brassine, Mathilde Chloé. "The diet and ecological role of black-backed jackals, Canis Mesomelas, in two conservation areas in the Eastern Cape Province, South Africa." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1005344.
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Mammalian predators are keystone species and can have disproportionately large impacts, relative to their abundance, on the communities and ecosystems they inhabit. In addition, predator-prey interactions (including bottom-up and top-down effects) are the fundamental linkage among species in food webs. Thus, understanding the food requirements of predators is imperative. There have been no comprehensive studies on the diet of black-backed jackals (Canis mesomelas) across a full seasonal cycle in the Albany Thicket Biome of the Eastern Cape Province. This biome is rich in plant diversity, is highly nutritious for herbivores and supports a large number of mammalian species, yet it is poorly conserved. The aim of the present study was to establish the diet of black-backed jackals on two conservation areas where thicket vegetation dominates (Great Fish River Reserve and Kwandwe Private Game Reserve). The diet was assessed using scats collected monthly from June 2009 to May 2010 and a sample of 25 stomachs over the same period. At both sites and across all seasons, mammalian hair was encountered most often (93% of all scats) and a total of 23 mammal species were consumed. Of the mammals recorded in the scats, hair from several ungulate species was encountered most frequently and these were mostly hider species (offspring hidden in tall vegetation just after birth). On a seasonal basis, the proportion of mammalian hair was lowest in autumn. However, the contribution of fruits (Carissa haematocarpa, Diospyros lycioides and Grewia robusta) to the diet was significantly higher during this season. This suggests that black-backed jackals may employ diet switching in the Eastern Cape as a mechanism to capitalise on seasonally abundant food sources. Based on the stomach content analysis, invertebrates were consumed as frequently as mammalian prey throughout the year but mammalian prey was recorded in greater quantity (i.e. volume and mass). Thus, scat analysis may have overestimated mammalian prey and fruits and underestimated the importance of invertebrates, particularly highly digestible species (e.g. termites). In spite of these differences, scat analysis demonstrated similar general and seasonal trends as the stomach content analysis. Thus, scat analysis can provide an efficient and relatively accurate source of information on the diet of blackbacked jackals in the Eastern Cape. Both stomach content and scat collection methods depicted the black-backed jackal as a generalist and opportunistic predator, mainly relying on mammals and invertebrates. Although the results of my study suggest that black-backed jackal may be important predators of certain ungulate species, further study on their prey preferences, actual biomass ingested and the effects on the population viability of prey species is required in order to develop a robust management plan for the species in the protected areas of the Eastern Cape.
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Forbes, Ross William. "The diet of black-backed jackal (Canis Mesomelas) on two contrasting land-use types in the Eastern Cape Province, South Africa and the validation of a new analytical method of mammalian hair identification." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1005345.
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Diet assessments are critical for understanding the foraging behaviour, habitat use and trophic separation of mammalian predators and are vital for gaining insight into how predators influence prey populations. The aim of this research was to qualitatively describe the diet of black-backed jackals (Canis mesomelas, Schreber 1775) using scat analysis on two contrasting land-use types in the Eastern Cape Province, South Africa. Scats were collected on a monthly basis from November 2009 to October 2010 from two game reserves (Great Fish River Reserve and Shamwari Private Game Reserve) and two neighbouring livestock farms. The relative frequency of occurrence of mammal hair (33 – 47 %) and vegetation (32 – 45%)dominated jackal diet throughout the year across the four study sites. Other important prey items included invertebrates (8 – 21 %) and fruit and seeds (3 – 11 %). Birds and reptiles constituted ≤ 2 % of the diet and were only recorded on the game reserves. Significant seasonal dietary shifts were observed on the game reserves but not on the farms. Fruit and seeds were significantly more frequent in the diet during autumn at Great Fish River Reserve and invertebrates were significantly less common in the diet during winter on both reserves. In addition, vegetation was significantly more common in the diet during winter at Shamwari Private Game Reserve. The significant temporal variation of certain prey items is testament to black-backed jackals being opportunistic generalists, foraging on those food items which are most abundant, accessible and energetically beneficial. Land-use type also influenced the diet of black-backed jackals with significantly more invertebrates and, fruit and seeds being recorded on the game reserves than on the farms. By contrast, significantly more mammal hair and vegetation were present in the diet on the farms compared with the game reserves. The mammalian component of the diet was dominated by ruminants and rodents on the game reserves and by ruminants and livestock on the farms. The presence of livestock in the diet of black-backed jackals on the farms highlights their potential impact on the livestock industry in the region and may assist farmers in determining which predators are responsible for stock loss. Previous approaches for identifying mammalian hairs from predator scats have utilised dichotomous keys and reference collections but these are often time-consuming and require a trained individual to carry out the identification. Thus, I also tested the efficacy of an automated pattern recognition programme (HairSnap) for identifying mammalian hairs from black-backed jackal scats. The overall accuracy of the programme was 38 % with black-backed jackal, Greater kudu (Tragelaphus strepsiceros) and striped polecat (Ictonyx striatus) hairs being accurately identified more often (70 – 80 %) than any other species tested. It is likely that both the size and species composition of the sample resulted in the poor accuracy of the programme. However, with the implementation of several improvement measures (e.g. adjustment of the algorithm) the programme may offer a superior, bias-free method of mammalian hair identification. The dietary information gathered here furthers our knowledge of the biology of the blackbacked jackals, especially in the locally important thicket biome. Moreover, understanding their foraging habits allows for more effective management of the species on both game reserves and farmlands. I recommend that future research should focus on quantitatively assessing the diet of black-backed jackals in the Eastern Cape Province and elsewhere. This will compliment the dietary description provided in this study and may offer a biologically more meaningful indication of the relative importance of the prey items.
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Minnie, Liaan. "Effects of lethal management on black-backed jackal population structure and source-sink dynamics." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/12658.
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Lethal carnivore management, aimed at reducing carnivore impacts, threatens the persistence of carnivores globally. The effects of killing carnivores will depend on their life histories and social structures. Smaller canids, like black-backed jackals (Canis mesomelas), are highly adaptable and display variable population-level responses to mortality sources, which may contribute to their success in fragmented landscapes. Jackals, the dominant predator of livestock in South Africa, are widely hunted to reduce this predation. This hunting is heterogeneous across the landscape, focussed on livestock and game farms, with nature reserves acting as refuges. The aim of this research was to investigate the ecology and population dynamics of jackals in response to heterogeneous anthropogenic mortality. I hypothesized that the spatial variation in hunting results in the formation of a source-sink population structure, which contributes to the persistence of jackals. I addressed this hypothesis by evaluating two criteria, essential for the formation of a source-sink system in larger mammals. Firstly, I confirm that hunting pressures result in the formation of distinct subpopulations with asymmetrical dispersal (i.e. compensatory immigration) from unhunted reserves to neighbouring hunted farms. Secondly, I show that jackal subpopulation display asynchronous demographics, with farm populations displaying a relatively younger age structure and an associated increase in reproductive output (i.e. compensatory reproduction). This confirms the formation of a hunting-induced source-sink system. additionally, I show that jackals have a catholic diet, which confers a level of adaptability to direct (anthropogenic mortality, prey provisioning) and indirect (alteration in prey base) habitat modifications. This dietary flexibility allows jackals to obtain the appropriate resources to achieve reproductive condition. The relatively better body condition of younger jackals in sink habitats allows for compensatory reproduction which contributes to the success of jackals on hunted farms. Based on my findings, I hypothesize that the compensatory life history responses of jackals to anthropogenic mortality may be ascribed to two interconnected mechanism. Dispersal is presumably driven by density-dependent interference competition, as dominant territorial pairs outcompete subordinates in high-density reserve areas, forcing them to disperse onto low-density farms (i.e. ideal despotic model). Additionally, farms likely represent attractive habitats, owing to a reduction in conspecifics and a concomitant increase in resource availability (including anthropogenic resource provisioning). Therefore, dispersing subordinates presumably select for farms which are perceived as good quality habitats, as the high risks of anthropogenic mortality cannot be perceived by dispersing individuals. This results in the formation of an attractive sink or ecological trap. These compensatory processes will continue to counter population management actions as long as recruitment from unmanaged areas persists. This hypothesis provides a conceptual framework for future research directions in understanding jackal persistence and management (i.e. specifically focussing on controlling dispersal) of jackal populations.
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Taylor, McComas. "The fall of the indigo jackal : the discourse of division and Pūrṇabhadra's Pañcatantra /." Albany : State University of New York Press, 2007. http://catalogue.bnf.fr/ark:/12148/cb41322571x.
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Atkinson, Robert Peter Douglas. "The ecology of the side-striped jackal (Canis adustus Sundevall), a vector of rabies in Zimbabwe." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389001.
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James, Robert. "The population dynamics of the black-backed jackal (Canis mesomelas) in game farm ecosystems of South Africa." Thesis, University of Brighton, 2014. https://research.brighton.ac.uk/en/studentTheses/2adb7302-01c8-4f72-aa82-8b1d9dca922f.
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Few studies have attempted to investigate carnivore dynamics in the privatised agricultural sector of South Africa. As such, the effect of lethal predator management on carnivore populations in private game-farms remains unclear. The black-backed jackal (Canis mesomelas) is one of a number of species that has historically been perceived as a threat to economic security and has frequently been targeted as a pest species. Despite efforts to reduce or remove C. mesomelas from livestock producing areas, recent land owner questionnaires and faecal density surveys report this species as prevalent. The mechanism by which this species persists under such circumstances is currently under debate, and remains a significant question that restricts the sustainable management of this species.
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Murison, Megan Kate. "The roles of black-backed jackals and caracals in issues of human-wildlife conflict in the Eastern Cape, South Africa." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1018667.
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[Partial abstract]: Human-wildlife conflict is a widely observed phenomenon and encompasses a range of negative interactions between humans and wildlife. Depredation upon livestock and game species proves to be the prevalent form of this conflict and often results in the killing of carnivores. Within the South African context, despite intense lethal control, two sympatric mesopredators, the blackbacked jackal (Canis mesomelas) and the caracal (Caracal caracal), remain common enough to be considered a major threat to human livelihoods through depredation. Wildlife ranches and livestock farms dominate the landscape in the Eastern Cape Province. Moreover, human-predator conflict within the region is extensive as both the black-backed jackal and caracal are seen to be inimical by landowners. Understanding this conflict is essential for mitigating any potential adverse environmental reactions (i.e. range collapses or extinctions) and requires knowledge of anthropogenic, ecological and environmental factors. I interviewed 73 land owners across five municipal boundaries in the Eastern Cape to quantify perceptions of predator control methods.
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KARLSSON, MIKAELA. "Regntät moderiktig jacka." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17367.
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Syftet med arbetet är att konstruera en vardaglig jacka som fungerar oavsett väder, genom att undersöka krav och behov, kartlägga tillgängliga metoder, samt möjligheter att enbart använda ytbehandling som regnskydd. Kraven ställs genom att studera litteratur, samt genom en enkätundersökning. Metoderna att uppnå vattentäta textilier kategoriseras i tre grupper; mikroporösa beläggningar och laminat, hydrofila beläggningar och laminat och väldigt tätvävt material. Dess egenskaper presenteras i rapporten, framförallt tätvävt material som visade sig vara det mest passande material för jackans syfte. Möjligheten att uppnå tillräcklig vattentäthet med enbart ytbehandling testades genom att behandla olika bomullstyger, med ytbehandlingar av olika substanser. För att utvärdera effekten utfördes ett spraytest. Det visade sig att ytbehandling ger en begränsad vattenskyddande effekt, vilket inte är tillräcklig för målgruppens behov. En kombination av tätvävt material som kompletteras med membran på de mest utsatta områdena, axlar och övre delen av ryggen samt bröstet ger ett komplett skydd och kan samtidigt konstrueras utan att se teknisk ut.Program: Textilingenjörsutbildningen
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Claesson, John. "Jacka - Juni - 2020." Thesis, Konstfack, Textil, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-7253.
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I ett projekt under våren 2020 utformades en metod för att skapa klädesplagg, och en jacka producerades. Jacka - Juni - 2020 ställer sig frågande till modernitetens värderande och standardiserande efter siffror. Jackan konstrueras med den äldre måttenheten aln som baseras på den individuella kroppen istället för massproduktionens generella mått. Den blickar tillbaka på en dåtid från sin samtid utan att utesluta sin samhörighet med någon utav dem. Jacka - Juni - 2020 är en första standardmodell producerad för hand, för att med enkelhet kunna reproduceras efter andra alnar.
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Clausen, Katie. "Jack's shadow /." Access resource online, 2009. http://scholar.simmons.edu/handle/10090/12589.
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Eklöf, Andreas. "Biker Jacket." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17065.
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Staring to explore the fashionable biker jacket from the fifties lead to the discover that it hasn’t changed much since its origin. The stereotyped biker jacket with the genuine black leather and raw details is an impact model and thought the jacket no longer is worn while riding a bike is it still presenting an image of a rebellious life.The aim of this work is to explore our traditional view of the biker jacket through material and shape. Discovering that the bikers riding position has big similarities with a standing cow gave background to the material used in the classical jackets, the cow. A living animal, a material that once lived. To use the cows and the biker’s upper body as a model, recreating its shape into biker jacket’s to develop the shape of the biker jacket further. By experimenting with untraditional non-textile materials instead of using leather hopefully develop the traditional view of a jacket and bring alternative material and construction forward. Conclusion of the work is that when the materials with strong associations are mixed with the biker shape the materials take over and the definition of the biker jacket becomes more complex. New questions that has arise could be the use of other technical materials, what happens when giving the jacket other functions, is it still a biker jacket then.Program: Modedesignutbildningen
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Jackel, Andrej [Verfasser]. "Cyclometallierte Platinkomplexe mit Farbstoff-basierten Liganden / Andrej Jackel." Konstanz : Bibliothek der Universität Konstanz, 2016. http://d-nb.info/1124780742/34.
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Bradley, Scott. "A kingdom Jack'd." Thesis, University of Iowa, 2018. https://ir.uiowa.edu/etd/6062.
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A Kingdom Jack’d is a satirical verse-play based on William Shakespeare’s Henry IV dramas. It opens in 1399 England, following the deposal of Richard II and what should have been the coronation of Henry IV. Instead, political machinations have thrust the clownish rogue John “Jack” Falstaff to the throne. With his band of cutthroats running court and the Lancasters reduced to mere rebels, Britain descends into chaos. The country’s only hope lies with Shakespeare’s literary creation Doll Tearsheet and his other peripheral, disempowered female characters. At play’s end, peace is gained with Falstaff’s flight into exile and the dismantling of patriarchal order.
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Loveridge, Andrew John. "Behavioural-ecology and rabies transmission in sympatric southern African jackals." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325375.
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Perdue, Peter C. "China Marches West: Jacket cover." Harvard University Press, 2005. http://hdl.handle.net/1721.1/9567.
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The China we know today is the product of vast frontier conquests of the seventeenth and eighteenth centuries by the expanding Qing empire. China Marches West tells the story of this unprecedented expansion and explores its consequences for the modern Chinese nation.Jacket cover of book
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Ripley, Kevin John. "The performance of jacked pipes." Thesis, University of Oxford, 1989. http://ora.ox.ac.uk/objects/uuid:63fb7691-90a0-46d0-919d-2d67b5261c89.
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Pipejacking is a tunnel construction technique which is increasing in popularity, but fundamental research is necessary to fully understand the extent of its possible uses and limitations. This dissertation reports on laboratory research into the performance of reinforced concrete pipes, assessment of pipe joints and the use of joint packing materials. The research has addressed specific problems which the tunnelling fraternity have raised. Model pipes have been constructed at scales of 1:6 and 1:10.5 using reinforced microconcrete and they have been tested in either a sand filled chamber or between supporting yokes. Current British Standard tests have been used as a control on the quality of pipe manufacture. Data have been recorded of changes in soil pressures, pipe geometry and strains induced in the pipes. The tests have investigated deformation of pipes, deflection angles between consecutive pipes, distribution of stress concentrations and the effects of the use of joint packing materials on allowable jacking loads and induced stress magnitudes in the pipes. A review of current pipejacking practice is presented and recommendations for the control and supervision of pipejacking operations are made. The conclusions include recommendations for fieldwork monitoring and implications of this stage of the research to industry. Recommendations are made for maximum installation jacking loads for any given deflection angle between pipes. The prediction of friction angles at the pipe soil interface have been assessed at different soil stress levels and new recommendations are made. The effects of cyclic loading on the pipejacking system and transfer from jacking load to ground loading once the pipes are installed are presented. The criteria used in the selection of a recommended joint packing material for use in jacking operations have been included. Failure modes of pipes are stated and recommendations are made for pipe design, installation and monitoring to predict and prevent such failures. This dissertation is the report on the first stage of an overall programme of research which is now set to progress with monitoring of pipejacking operations on several construction sites.
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Jackel, Frank M. [Verfasser]. "Die kontinuierliche Herstellung von Tailor Rolled Strips durch Bandprofilwalzen / Frank M Jackel." Aachen : Shaker, 2010. http://d-nb.info/1124364234/34.
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Jackel, Frank Martin [Verfasser]. "Die kontinuierliche Herstellung von Tailor Rolled Strips durch Bandprofilwalzen / Frank M Jackel." Aachen : Shaker, 2010. http://nbn-resolving.de/urn:nbn:de:101:1-201701291283.
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Valpiani, Giovanni. "Welding Book of an Offshore Jacket." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15255/.
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La tesi riguarda la redazione del "Welding Book" per il caso studio di un Jacket Offshore. Il corpo del testo è costituito da una breve introduzione sulla saldatura e sul progetto che è stato preso in considerazione per realizzare il Welding Book. Una seconda parte teorica con richiami alle normative e specifiche utilizzate, riguardante le nozioni necessarie per realizzare il libro di saldatura. Una terza parte tecnica che racchiude il Welding Book; in particolare un elenco di tutte le saldature da effettuare nel progetto, le WPS (Welding Procedure Specification) e le WPQR (Welding Procedure Qualification Records). Concludendo i disegni del Jacket Offshore e i dettagli costruttivi delle saldature.
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Yu, Feng, and 俞峰. "Behavior of large capacity jacked piles=." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31450866.
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Ewertson, Sara-Lovise. "PUFFER-JACKET-SOFT-SQUAD, PURE SCULPTURE!" Thesis, Konstfack, Textil, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-6878.
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This degree project starts in the interest for fashion spaces. With this project I want to challenge the way we can experience fashion. I want to push forward the concepts; showroom/ collection. The body is always important and the starting point in my projects. The body is essential both in the sketching and in the final experience. More specifically, In this degree project I am investigating how body, furniture and puffer jacket can relate to each other. How a puffer jacket collection can be perceived spatially and what will it be then.
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Wilson, Rory Paul. "Breeding Jackass Penguins as pelagic predators." Doctoral thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/17653.
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Bibliography: pages 187-191.The foraging of breeding Jackass Penguins Spheniscus demersus was studied in and around southwestern Cape Province, Saldanha Bay (33⁰ S, 18⁰ E), South Africa. Penguins are difficult to observe at sea. Hence, I devised a number of new techniques for studying the foraging behaviour of Jackass Penguins at sea. I built electronic and autoradiographic remote-sensing devices to measure swimming speed, distance travelled and time spent at each depth by foraging Jackass Penguins. Penguin swimming speed was reduced in proportion to the cross-sectional area of the devices, and results derived from birds wearing the devices had to be interpreted accordingly. Penguins do not regurgitate their stomach contents when handled, so I constructed a wet-offloading stomach pump which extracted 100% of the stomach contents. Using this pump, I determined that the rate of digestion of fish and squid by Jackass Penguins differed. Care is needed in diet interpretations where both fish and squid are major food items.
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Flesche, Arve. "Fatigue in Jacket Structures With Impaired Integrity." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18530.
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Present regulations for offshore structures on the Norwegian continental shelf havea requirement for Accidental Limit State redundancy and Fatigue Limit State redundancyin a damaged state. However, the requirement is far more defined forthe Accidental Limit State than for the Fatigue Limit State. An increased understandingof factors governing fatigue redundancy would create a basis to form acomprehensive definition.In literature, the term redundancy is defined in several ways. The different methodscan be divided into two major categories, namely deterministic and probabilisticapproaches. In general, redundancy may be defined as the absence of memberswhose failure would lead to global collapse. Within both the deterministic and theprobabilistic framework, several redundancy factors are usually defined, and thereare resemblance between some of them. In probabilistic methods, the reliabilitymethod is commonly applied through the First Order Reliability Method.Fatigue damage is a primarily concern regarding the integrity for offshore structures.A near constant subjection to cyclic loadings from wind, current and wavesinitiates a cumulative damage process which leads to a certain fatigue life for themembers in the structure. The lifetime may be calculated using either a fracturemechanics approach or a SN-curve approach. There exists several approaches tocalculate the stress levels to be used in the fatigue analyses, and the choice ofmethod is mainly based on whether or not the structure under consideration isdynamically behaving or may be regarded as quasi-static. Also, there may be nonlinearitiesthat needs to be accounted for and naturally this will affect the choiceof analysis method. However, large uncertainties are associated with fatigue calculationsregardless of analysis approach. Thus, a probabilistic framework is highlyrelevant in order to estimate the risk of failure due to fatigue.A study on how impaired integrity affects the fatigue life has been performed fortwo jackets; one highly redundant four-legged jacket and one less redundant threeleggedjacket. The main goal has been to investigate the fatigue redundancy of thestructures, in order to link up the risk of accelerated fatigue due to damage withthe risk of failure due to extreme environmental actions, which may eventually leadto structural collapse. A stochastic fatigue analysis approach was chosen, and theanalyses was in agreement with the standards governing the Norwegian continentalshelf at the time of this thesis. Pushover analyses has been performed on the jacketsto give an insight in their redundancy, and a calculation of changes in the naturalperiods under impaired integrity has also been done.The four-legged jacket was proven to be highly redundant, and had small changesin the natural period under impaired integrity. The three-legged jacket on the otherhand, had some damage cases with a rather large increase. Also, the redundancyfactor R4 was significantly lower for the three-legged jacket, thus confirming it tobe less redundant than the four-legged jacket. A large change in the natural periodwill alter the dynamic response, thus the fatigue life is vastly connected to changesin global stiffness.Trying to explain the changes in fatigue life for the two jackets under impairedintegrity without using a deterministic approach, i.e. calculate the fatigue life forthe specific damage case, was proven to be very difficult. There seems to be noeasy way to isolate the severity of the fatigue life reduction since large changesare occurring throughout almost the entire structure for several damage cases, aswell as large spread in the values them self. However, there was also found sometrends in the results. One of them, was that the closer a member is to the damagedelement, the larger is the expected reduction in fatigue life. Another trend, is thata large fatigue accelerator factor is expected in almost every damage case, thus onemay expect large changes for most of the damage scenarios.Another vastly occurring phenomenon were the location of the damaged memberswho gave the lowest fatigue life in the structures. For the four-legged jacket, thisinvolved damage in the caisson supports. The three-legged jacket, however, hadthe lowest fatigue lives occurring for damage cases in the top frame where there isa lack of deterministic redundancy.There seems to be no fatigue redundancy for the jackets, as there are large fatigueaccelerator factors occurring. There is also the very low calculated fatigue life inthe most extreme cases. However, there has been found a slight correlation betweena large reduction in fatigue life and a large initial fatigue life. What should also betaken into account though, is both the risk related to the fatigue lives found, andthe accuracy of the values due to the linearised analysis.
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Kristiansson, Johanna, and Michaela Hronek. "“Man gömmer sin McDonaldspåse under jackan typ.” : Interaktioners upplevda effekt på unga tjejers kroppsuppfattning." Thesis, Högskolan i Halmstad, Sektionen för hälsa och samhälle (HOS), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-23332.
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Den psykiska ohälsan bland unga tjejer i Sverige ökar kraftigt. Studier visar på att interaktioner som, för individerna, upplevs som negativa kan skapa en negativ kroppsuppfattning hos dessa. Syftet med studien är, utifrån ett interaktionistiskt perspektiv, att undersöka hur en grupp unga tjejers kroppsuppfattning kommer till uttryck i samtal kring kost. Den föreliggande studien genomfördes med fokusgruppsdiskussioner som metod, där två fokusgrupper med unga tjejer deltog. Diskussionsämnet i dessa fokusgrupper var kost, detta diskussionsämne resulterade automatiskt i samtal kring kroppsuppfattning. Resultatet visade på att beroende på interaktionens värde influerades deltagarna på olika sätt, där de signifikanta andra hade den största inverkan på skapandet av åsikter, beteenden och således kroppsuppfattning. Negativa interaktioner kan således skapa en negativ kroppsuppfattning hos individer, och kan vidare utvecklas till en ökad psykisk ohälsa hos individen. Positiva interaktioner resulterade i en inre tankeprocess hos deltagarna, dock mynnade dessa tankar sällan ut i ett konkret beteende.
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Abraham, Acosta Said Nahir. "Contenido de elementos traza en los ríos Blanco, La Palca y Jachal, San Juan." Bachelor's thesis, Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias, 2018. http://bdigital.uncu.edu.ar/10871.
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Los ríos Blanco y La Palca junto a su efluente, el río Jáchal, se ubican en la localidad de Jáchal provincia de San Juan. Diversos estudios han determinado la presencia de elementos traza dentro de estos sistemas fluviales, superando valores límites establecidos por normativas legales para distintos usos por parte de las poblaciones.
En la presente investigación se realizaron estudios en la zona, tanto en el recurso suelo como en el agua, con el fin de conocer el estado actual de los cauces respecto al contenido de cobre, zinc, hierro, bario, mercurio, plomo, cromo, plata, arsénico, manganeso, talio y boro. Además se analizó su comportamiento dentro del complejo sistema natural determinando las diferencias existentes entre los tres ríos respecto a los elementos traza mencionados. Para ello se realizaron análisis físico químicos, análisis discriminantes lineales, análisis de la varianza, análisis de correlaciones y cálculo de aportes porcentuales desde los ríos afluentes al efluente. A su vez se tuvo en cuenta el marco legal argentino (Código Alimentario Argentino y Ley 24.051), procurando estudiar si existían especies químicas que excedieran los valores umbrales para su consumo en distintas actividades.
Los resultados obtenidos mostraron claras diferencias entre los tres ríos a lo largo de los diversos análisis, dejando en evidencia distintas concentraciones entre los cauces, diferencias en los aportes entre los ríos Blanco y La Palca al Jáchal según el elemento traza, y comportamientos propios de cada especie química, influenciados por factores ambientales, dentro del sistema en su totalidad. Por otro lado se encontró que en muchos casos los valores de concentraciones medidos excedían los valores establecidos legalmente, dando indicios de posibles problemas que el consumo del agua de estos ríos, podría ocasionar sobre poblaciones aledañas.
Los resultados mostraron que el consumo del recurso hídrico proveniente de la zona en estudio, requiere de una especial atención por parte de las personas que hacen uso del mismo, ya que el agua podría causar daños sobre la salud de los habitantes y posiblemente el medio ambiente si no se realiza un consumo consciente del recurso. Es necesario realizar futuros estudios que amplíen esta investigación y que determinen el comportamiento temporal del sistema con el objetivo de elaborar estrategias que eliminen o disminuyan los riesgos en las poblaciones.Fil: Abraham Acosta, Said Nahir. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias.
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Mårtensson, Hanna. "Passformsgrund för jacka : Att anpassa konstruktion och gradering för en icke normativ målgrupp." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10254.
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Att vara över 50 år och ha en kroppsform som inte är timglasformad kan ge problem med att hitta kläder med bra passform eftersom det är så få varumärken som anpassar sina kläder till denna målgrupp (Nordiska ministerrådet 2009). Tillverkarna tar oftast inte hänsyn till den förändring som sker när kroppen åldras eller det faktum att kroppen nödvändigtvis inte behåller samma kroppsform när den växer. Syftet med studien är att ta fram en grundkonstruktion av en jacka som är anpassad för denna målgrupps kroppsform, samt att gradera konstruktionen med hänsyn till målgruppen. En storleksserie togs fram med studiens företag och målgrupp i åtanke. Jackans grundmönster konstruerades och under avprovningar utvärderades grunden och korrigeringar i mönstret gjordes för att uppnå bästa möjliga passform. Med hjälp av graderingsfunktionen konstruerades jackan i ytterligare fyra storlekar som syddes upp och provades av. Studiens resultat visar att det krävs flera förändringar för att skapa bra passform genomgående för alla fem storlekar. Grundkonstruktionen kräver exempelvis en mer sluttande axel och en sänkt bysthöjd, graderingen görs proportionell för att behålla fördelningen av vidd mellan fram- och bakstycket. Som slutsats konstateras att tillverkning av kläder till denna målgrupp med fördel bör anpassas i konstruktion och gradering.
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Mayrer-Minnie, Rachel. "Behind the Ripper's mask representing Jack the Ripper in the twentieth and twenty-first centuries /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 205 p, 2008. http://proquest.umi.com/pqdweb?did=1654494601&sid=10&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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Peng, Li. "Analysis and Design of Offshore Jacket Wind Turbine." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11612.
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Offshore wind is an attractive source of renewable energy. In order to harvest this abundant energy source wind turbine farms are needed. In order to extend the application of offshore fixed wind turbine (OFWT) in deep water where winds are stronger and steadier, there are research works on fixed wind turbine which is ongoing on larger water depth like 70-100m. The focus in this thesis is analyses to support design of OFWT jacket substructure piled to the seabed, with a particular focus the modeling and ultimate capacity behavior of such facilities subjected to extreme wind and wave forces. During modelling, Genie and USFOS are applied to re-design and modify the finite element model of wind turbine substructure given by Aker Solutions. New design jacket substructures are both for the intermediate water depth 70 meters and 100 meters with the soil and pile modelling based on the Ekofisk data. Based on design load case, both of the static pushover analysis and API design code check is performed on the jacket substructure model to check the ultimate capacity. The pushover analysis is performed through nonlinear finite elemnt code USFOS. The API code check is based on hand calculation.The response of the jacket substructures under design load case is most interested in, which could indicate the critical position on jacekt, furthermore the effect of the direction and size of the wind and wave load. Meanwhile, through comaprission of results, the two methods could confirm each other, which could help to get the deeper understanding of ULS of offshore jacket structure.
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Marshall, Mark Andrew. "Pipe-jacked tunnelling : jacking loads and ground movements." Thesis, University of Oxford, 1998. http://ora.ox.ac.uk/objects/uuid:94675596-b2cf-4375-82f8-ea36e8a99f07.
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The reported work constituted the third phase of a programme of research into the performance of concrete pipes during installation by the pipe-jacked tunnelling technique. This third stage was a continuation of the on-site monitoring of full-scale pipe jacks during construction. Four schemes were monitored in different ground conditions: London clay, dense fine sand below the water table, stiff glacial till and soft alluvial clay. Pipe sizes ranged from 1000mm to 1800mm internal diameter and excavation methods included hand tools, slurry machines and an open face tunnel boring machine. The main objective was to collect information on jacking loads and stresses at the pipe-soil interface to provide a better basis for future designs. This was achieved by building twelve stress cells -capable of measuring total normal stresses, shear stresses and pore pressures - into the wall of a standard concrete jacking pipe that could be inserted anywhere in the pipe string. Jacking loads and forward movement of the pipe string were simultaneously recorded and the results were correlated against site activities, including lubrication operations, and tunnel alignment surveys. Another objective was to monitor the ground response by measuring displacements around the tunnel and ground pressures above the perpendicular to the intended line. Ground movements were measured using conventional surveying techniques for surface settlements, and inclinometer access tubes for sub-surface deformation. On one scheme, electro-levels were employed in a near-horizontal tube to measure centre line settlement as the tunnel bore advanced. Push-in spade cells and pneumatic piezometers were installed on two schemes to measure the change in horizontal pressures with the passage of the shield. Because of the myriad data collected, it has only been possible to present a summary of the results obtained. Jacking force records from all the monitored schemes - including the previous fieldwork stage - are presented. The pattern of jacking load build up and the magnitude of frictional resistance can differ significantly according to the type of ground and use of lubricants. Stress measurements at the pipe-soil interface show that the interaction between jacking loads, pipeline misalignment, stoppages, lubrication, excavation technique etc, is highly complex. Ground movement measurements compared to well established empirical predictive methods show that short-term displacements are related to ground losses caused by closure of the overbreak void between shield and pipe.
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Murray, Brian A. "Hydrodynamic loading due to appurtenances on jacket structures." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239242.
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Mülleder, Gerald. "Zwischen Justiz und Teufel : die Salzburger Zauberer-Jackl-Prozesse (1675-1679) und ihre Opfer /." Münster [u.a.] : LIT, 2009. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=018809399&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Hedström, Jenny. ""Jackie Collins är jättefarlig!" Debatten om populärlitteratur 1980-2004." Thesis, Uppsala University, Department of ALM, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-101727.
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Barcena, Pasamontes Lucia, and Torres Fernando Gomez. "Topology optimization of jacket support structures with genetic altorithm." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bygg, anlegg og transport, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-24574.
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This thesis is a study of the optimization of the support structure for offshore wind turbines with a genetic algorithm. The optimization of these structures plays an important role in the plan for reduction of the costs proposed for the coming years in the field of offshore wind energy.The support structure proposed to optimize in this study is based on the model designed for the OC4 project. This model consists of 4 legs and 4 levels of X-braces forming a lattice. The optimization proposed in this thesis is based on the minimization of the weigh and the damaget of the structure establishing as design variables the geometry (diameters and thickness of the beams) and topology (location nodes). Material properties will not change.In order to perform this task, a genetic algorithm has been implemented in Matlab (Version R2013a). The variables are converted into binary code in order to combine two different designs. The pairs of designs selected to be combined are chosen randomly within the population and after the combination, or crossed over, two new designs are generated. After that, the new designs are evaluated based on a fitness function (weight or damage) and selected again, based on the fitness value. This is an iterative process and finishes when an optimal design is found. Mutation and immigration operators are used in order to increase the variety in the search space.Every iteration, analysis of each design is performed with a complete wind turbine simulation for a loadcase in the time-domain. Data obtained from the simulation are used for stress calculation and checked fatigue and ultimate limits.These results demonstrate that automatic optimization of wind turbine support structures is feasible with a genetic algorithm, even for complex structures such us the one analyzed in this thesis.
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Norris, Paul. "The behaviour of jacked concrete pipes during site installation." Thesis, University of Oxford, 1992. http://ora.ox.ac.uk/objects/uuid:7081bc8a-c149-4706-83f9-d041ce066819.
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While much money and effort has been spent by manufacturers and users of pipe jacking equipment to develop suitable techniques, this work appears to be the first to study the method at full scale, in a scientific research programme. It has involved monitoring a series of five pipe jacks during construction. In each case a heavily instrumented pipe was incorporated into the pipe string to measure pipe joint stresses, pipe and joint compressions and contact stresses between pipe and ground. Total jacking loads and movements of the pipe string were also measured and all results correlated with a detailed site log, full tunnel alignment surveys, and observed ground conditions. The success of the site monitoring has been highly dependent upon the development of a suitable instrumentation and data acquisition system in conjunction with appropriate site procedures for working in the restricted and physically demanding pipe jack environment without undue disruption to normal site operations. The build up of total jacking force is the result of highly complex soil-pipe interaction. The local interface stresses are essentially frictional in most ground conditions, and can be related to the shear strength of the ground. The problem is in determining the effective radial stresses which are affected by soil insitu stresses, stiffness and strength; groundwater conditions; rate of progress; pipeline misalignment and use of lubricants. Relations between pressure distributions at pipe joints and measured tunnel alignments are presented. That small angular deviations between successive pipes cause severe localisation of stresses on their ends is clearly demonstrated. Careful back analysis shows that the linear stress approach of the Concrete Pipe Association of Australia can adequately match the measured stresses and could be used by pipe manufacturers to provide design data on allowable jacking forces for pipes on the basis of pipe size, packer properties, concrete strength and angular alignment. It is also clear from the small pipe barrel stresses that improved packing materials would allow more of the potential strength of pipes to be achieved. Since relative angular than absolute deviations control transfer mechanisms between pipes, uncritical adherence to specifications based on absolute line and level is counter-productive.
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Cardwell, Thomas. "Still life and death metal : painting the battle jacket." Thesis, University of the Arts London, 2017. http://ualresearchonline.arts.ac.uk/12036/.
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This thesis aims to conduct a study of battle jackets using painting as a recording and analytical tool. A battle jacket is a customised garment worn in heavy metal subcultures that features decorative patches, band insignia, studs and other embellishments. Battle jackets are significant in the expression of subcultural identity for those that wear them, and constitute a global phenomenon dating back at least to the 1970s. The art practice juxtaposes and re-contextualises cultural artefacts in order to explore the narratives and traditions that they are a part of. As such, the work is situated within the genre of contemporary still life and appropriative painting. The paintings presented with the written thesis document a series of jackets and creatively explore the jacket form and related imagery. The study uses a number of interrelated critical perspectives to explore the meaning and significance of the jackets. Intertextual approaches explore the relationship of the jackets to other cultural forms. David Muggleton’s ‘distinctive individuality’ and Sarah Thornton’s ‘subcultural capital’ are used to emphasise the importance of jacket making practices for expressions of personal and corporate subcultural identity. Italo Calvino’s use of postmodern semiotic structures gives a tool for placing battle jacket practice within a shifting network of meanings, whilst Richard Sennett’s‘material consciousness’ helps to understand the importance of DIY making practices used by fans. The project refers extensively to a series of interviews conducted with battle jacket makers between 2014 and 2016. Recent art historical studies of still life painting have used a materialist critique of historic works to demonstrate the uniqueness of painting as a method of analysis. The context for my practice involves historical references such as seventeenth century Dutch still life painting. The work of contemporary artists who are exploring the themes and imagery of extreme metal music is also reviewed.
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Colunas, Márcio Filipe Moutinho. "Droid Jacket: a mobile monitoring system for a team." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/3559.
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Mestrado em Engenharia dos Computadores e TelemáticaOs profissionais de emergência lidam no seu quotidiano com situações de perigo, agindo muitas vezes sob pressão, expondo-se a níveis de stress e fadiga por períodos extensos, causando um impacto negativo nas suas vidas e saúde. Neste contexto, a utilização de novas soluções a partir de tecnologias vestíveis, redes de sensores e dispositivos móveis cria a oportunidade de oferecer um acompanhamento mais próximo, com o objectivo de detectar situações de perigo e dar suporte a equipas de profissionais de emergência médica em campo. No entanto, existem muito poucas soluções voltadas para a utilização sinérgica destas tecnologias emergentes que dêem suporte integrado a monitorização de uma equipa. Nesta dissertação propomos uma arquitectura conceptual de software (TeamMonitor) para agregação, análise e disseminação de informação direccionada para a monitorização de equipas na acção. Team Monitor e sustentada na noção de nós de coordenação centrais, que são responsáveis pela recolha de dados de diferentes fontes (ex.: vários profissionais de emergência) e subsequente fluxos de trabalho para análise, incluindo processamento básico de dados (ex.: execução de detectores de alarmes de sinal biológico) e troca eficiente de dados com clientes externos. O nó central dissocia a rede de tecnologias de informação da rede de fornecimento de dados. O suporte é dado pela camada de aquisição de sinal biológico e de análise que nós desenvolvemos, o módulo BIOSal. De modo a ilustrar a viabilidade do TeamMonitor, nós implementámos um sistema como prova do conceito, o Droid Jacket, onde o nó central da TeamMonitor e instanciado num dispositivo móvel com Android. Droid Jacket permite monitorizar até quatro Vital Jacket (uma tecnologia vestível para a monitorização de uma pessoa), fornecendo tanto o suporte para a troca e ficiente dos sinais agregados para clientes externos, como a detec ção precoce de potenciais alarmes a partir do processamento em tempo real dos dados adquiridos. Ao contr ario de outras abordagens comuns, nós consideramos as capacidades de processamento do dispositivo móvel para estação base. Nós implementámos um algoritmo simples de detecção do complexo QRS da onda cardíaca e de arritmias no Droid Jacket, a partir do electrocardiograma adquirido pelas unidades com o Vital Jacket vestido. Droid Jacket demonstra que a incorporação de dispositivos móveis num cenáario de monitorização de uma equipa é uma opção razoável, e o conceito pode ser estendido e adaptado a cenários mais realistas como a monitorização de bombeiros.
First responders deal in their daily lives with danger, working under pressure, exposing themselves to stress and fatigue for extended periods, which has a negative impact on their lives and health. In this context, using new solutions based on wearable technologies, sensor networks and mobile devices raises the opportunity to provide closer monitoring, aiming at detecting hazard conditions and supporting rst responder teams in the eld. However, very few solutions exist addressing such synergistic use of these emergent technologies to support integrated team monitoring. In this dissertation we propose a conceptual software architecture (TeamMonitor) for information aggregation, analysis and dissemination towards eld-action teams monitoring. TeamMonitor is supported in the notion of central coordination nodes that are responsible for data aggregation from multiple sources (e.g.: several rst responders professionals) and subsequent analysis work ows, including basic data processing (e.g.: running biosignal alarms detectors) and data stream relay to external clients. The central node decouples the IT network from the data providers network. This support is provided by a biosignal acquisition and analysis framework we developed, the BIOSal module. To illustrate TeamMonitor feasibility, we implemented a proof-ofconcept application, the DroidJacket, in which the TeamMonitor central node is instantiated in an Android mobile device. DroidJacket is able to monitor up to four VitalJacket R devices (a wearable garment for individual monitoring) providing both the support to relay the aggregated signals data to remote clients and an early detection of potential alarms based on real-time processing of the acquired data. Unlike other common approaches, we rely on the mobile device processing capabilities for the base-station. We implemented a basic algorithm for heart wave QRS complex and arrhythmia detection in DroidJacket, using the electrocardiogram acquired from the VitalJacket units. DroidJacket demonstrates that incorporating mobile devices in the team monitoring scenario is a reasonable option nowadays and the concept can be extended and adapted to more realistic scenarios like re ghter monitoring.
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Viljoen, Storme. "Wildlife health in human-modified landscapes: epidemiology of tick-borne pathogens affecting black-backed jackals and caracals." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25536.
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Despite the importance of disease as a wildlife management challenge, baseline research on the epidemiology of pathogens occurring in wildlife populations within both rural and urban landscapes has received little attention to date. The aim of this study was to improve our understanding of wildlife health in human-modified landscapes in South Africa, by providing comparisons of body condition, host-attached tick diversity and tick-borne pathogen (TBP) epidemiology of two common mesocarnivore species, the black-backed jackal (Canis mesomelas) and caracal (Caracal caracal). Jackals (n=46) and caracals (n=27) were sampled from small livestock farmlands in the Central Karoo region, in addition to caracals from farmlands in Namaqualand (n=14), and the urban matrix of the Cape Peninsula (n=16). Body condition was evaluated using both ratio (Body Mass Index) and residual (Ordinary Least Squares) methods, and morphometry was compared with historical datasets for each species. There was no apparent effect of sex, age class or location on body condition of jackals or caracals. Host-attached tick diversity was highest in urban caracals compared with the two other caracal populations, possibly indicating that they are exposed to a greater diversity of potential tick vectors. Molecular methods (mPCR/RLB; conventional PCR screening and phylogenetic analysis) used to screen for selected pathogens of veterinary and/or zoonotic concern, including Ehrlichia, Anaplasma, Babesia and Theileria species, revealed that Central Karoo jackals exhibited a lower prevalence of TBPs, compared with sympatric caracals. Hepatozoon canis, a ubiquitous pathogen of domestic and wild canids globally, was observed in 46.5% of jackals. Theileria ovis, a piroplasm of small livestock, was found in 4.7% of jackals. Jackals and caracals appear to be distinct in their TBP epidemiological roles, despite sharing similar tick communities. Pathogens found in caracals include Hepatozoon felis, Babesia felis, Babesia leo and a potentially undescribed Babesia species, genetically similar to B. venatorum, an emerging zoonosis. An Anaplasma species previously described in South African domestic dogs was also found in the urban caracals. All caracals were infected with at least one TBP. Together, these findings suggest that land use does not significantly influence the body condition of these adaptable predators, but that there is a health cost associated with living in the urban space. Cape Peninsula caracals show substantially higher rates of TBP co-infection (81% versus 14.8% and 0% in farmlands) and greater pathogen diversity compared to farmland caracals. The findings of this study include numerous examples of previously undescribed genetic diversity of tick-borne pathogens infecting South African mesocarnivores living in transformed landscapes. This work adds to our understanding of wildlife health within the 'One Health' framework and represents the first detailed examination of TBPs in jackals on farmlands and is also the first work that focuses specifically on TPBs in caracals anywhere in the world.
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Azmi, Niloufar. "A Driver Fatigue Monitoring and Haptic Jacket-based Warning System." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22810.
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Driver fatigue is a major factor in most traffic accidents. This issue has increased the urgency for in-vehicle collision avoidance systems relying on proper driver fatigue detection and warning technologies. Computer vision approaches have been of much interest due to their non-invasive nature for detecting drowsiness. In addition, increased effort has been dedicated to the design of safety systems that warn drivers of various types of collisions. How these systems alert the sleepy drivers when integrated, however, is a crucial component to their effectiveness. A nonintrusive method is proposed in this thesis as a feasible solution to accurately detect fatigue levels and perfectly produce timely warnings. Fatigue progression over time is quantified to more accurate fatigue levels according to reliable PERCLOS measurements in a continuous LBP + SVM based eye state recognition process. Given the quantized fatigue levels, a novel haptic jacket-based alerting scheme is provided to safely convey varying criticality signals. Drivers would have the option to customize haptic jacket settings for the preferred type of feedback perception. This thesis reviews existing approaches, details the proposed system, and finally presents system performance evaluation and usability studies.
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Thermil, Kareen. "Future Tourism Developments in Haiti: Jacmel, Haiti, a case study." Thesis, The University of Arizona, 1998. http://hdl.handle.net/10150/559195.
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Jachan, Felix Sebastian Valentin [Verfasser]. "Flächeninhaltserhaltender Willmore-Fluss im asymptotisch Schwarzschildschen / Felix Sebastian Valentin Jachan." Berlin : Freie Universität Berlin, 2014. http://d-nb.info/1050709616/34.
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BAUTISTA, L. I. M. "Formalismo Hamiltoniano do Modelo de Jackiw-Teitelboim no Calibre Temporal." Universidade Federal do Espírito Santo, 2007. http://repositorio.ufes.br/handle/10/4769.
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Previous issue date: 2007-07-05Frente às dificuldades que aparecem na teoria da Relatividade Geral no mundo real, estudam-se modelos mais simples, como por exemplo, a gravitação 2-dimensional, que permitem entender a natureza desta. No entanto mesmo se a gravitação em duas dimensões não descreve o mundo real, ela permite eliminar algumas das dificuldades encontradas num espaço-tempo 4-dimensional. Estudaremos a gravitação 2-dimensional, nos baseando no modelo de Jackiw-Teitelboim, a qual é formulado como uma teoria topológica do tipo BF. Devido a dificuldades encontradas com o grupo de Poincaré ISO(1,1), introduziremos o grupo de (anti)-de Sitter (A)dS, SO(2,1). Faremos uma fixação parcial de calibre análoga àquela feita em 4-dimensões no formalismo de Quantização de Laços. Estudaremos as quantidades invariantes de calibre, os observáveis de Dirac desta teoria, e finalizaremos dando uma breve introdução à transição para a teoria quântica.
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Lahrmann, Harry, Tanja Kidholm Osmann Madsen, Anne Vingaard Olesen, Jens Chr Overgaard Madsen, and Tove Hels. "The effect of a yellow bicycle jacket on cyclist accidents." Elsevier, 2017. https://publish.fid-move.qucosa.de/id/qucosa%3A72766.
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This study is the first randomised controlled trial (RCT) of the safety effect of high-visibility bicycle clothing. The hypothesis was that the number of cyclist accidents can be reduced by increasing the visibility of the cyclists. The study design was an RCT with 6793 volunteer cyclists – 3402 test cyclists (with a yellow jacket) and 3391 control cyclists (without the jacket). The safety effect of the jacket was analysed by comparing the number of self-reported accidents for the two groups. The accident rate (AR) (accidents per person month) for personal injury accidents (PIAs) for the test group was 47% lower than that of the control group. For accidents involving cyclists and motor vehicles, it was 55% lower. The study was non-blinded, and the number of reported single accidents was significantly lower in the test group than in the control group. This is likely a result of a response bias, since the bicycle jacket was not expected to affect the number of single accidents. To compensate for this bias, a separate analysis was carried out. This analysis reduced the effect of the jacket from 47% to 38%.
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Maillard, Nadja Cornaz Jack. "Jack Cornaz, un architecte à contre jour /." Lausanne : Presses polytechniques et universitaires romandes, 2006. http://opac.nebis.ch/cgi-bin/showAbstract.pl?u20=9782880746933.
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Reeder, Connie. "Jack is Dead." ScholarWorks@UNO, 2008. http://scholarworks.uno.edu/td/669.
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McCormick, John T. II. "Jack Pine Scraggly." Miami University / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=miami1091500019.
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Šonková, Stella. "Výtvarná koncepce filmu "Rudý Mor" podle knihy Jacka Londona. Postapokalyptické filmy, historie a příklady ve světové kinematografii." Master's thesis, Akademie múzických umění v Praze.Divadelní fakulta. Knihovna, 2017. http://www.nusl.cz/ntk/nusl-370737.
Full textAbstract:
The thesis deals with a visual concept for a feature film based on the novel „The Scarlet Plague“ by Jack London. It consists of two parts: a theoretical part and a practical part, which contains author’s own design for the film.
The first, theoretical part describes the history of the genre, and analysis the visual concepts of a few post-apocalyptic films that are relevant to the concept chosen for „The Scarlet Plague“, particularly Rise of the Planet of the Apes (director Rupert Wyatt, 2011), Dawn of the Planet of the Apes (director Matt Reeves, 2014), Waterworld (director Kevin Reynolds, 1995), I am Legend (director Francis Lawrence, 2007), Mad Max: Fury Road (director Georges Miller, 2015).
In the second, practical part, the approach to the concept of „The Scarlet Plague“ is described and accompanied with the visual execution of selected scenes.
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Hudson, Jackie. "Doubt a road to growth /." Theological Research Exchange Network (TREN), 1987. http://www.tren.com.
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Kings, Michael. "Foraging tactics and social networks in wild jackdaws." Thesis, University of Exeter, 2018. http://hdl.handle.net/10871/34567.
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Individual variation in asocial and social behavioural traits can affect patterns of social association. Resultant individual-level variation in sociality can be quantified using social network analysis. Social network analysis has recently been applied to the study of the evolution and development of social behaviour. Though captive systems have provided useful contributions to this endeavour, investigating the factors shaping social structure in wild populations affords superior ecological relevance. The characterisation of the social structure of wild animals has been greatly aided by improvements in automated data collection methods, particularly the miniaturisation of Radio-Frequency Identification (RFID) technology for the purposes of studying the social foraging behaviour of wild birds. In this thesis, I use RFID methods to examine the factors influencing between-individual variation in foraging routines (Chapter Two) and social network position (Chapter Three) in wild populations of a colonial corvid species, the jackdaw (Corvus monedula). I then relate social network position to reproductive success (Chapter Three) and investigate the developmental plasticity of jackdaw social behaviour by determining the effect of early life conditions on social network position (Chapter Four). Finally, I describe the fine-scale temporal dynamics of social foraging, the nature of accompaniment during paired foraging and the foraging benefits of social support (Chapter Five).