Dissertations / Theses on the topic 'OASIS'
To see the other types of publications on this topic, follow the link: OASIS.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'OASIS.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Rizvani, Lejla. "Cooling Oasis." Thesis, KTH, Arkitektur, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298809.
Full textAbstract:
The urban heat island, UHI, is a phenomenon that occurs in all cities. This phenomenon is an effect of us humans and the environments we have built. What happens in cities are that they re-emit the suns heat and other energies trapping them in this heat island. The re-emitting happens through the pavement of the city, lack of greenery, roads and how the city is built and its geometry. Cities with skycrapers and of high density see a greater impact of the urban heat island where the wind flow is reduced and more heat is trapped and stored. The UHI is worst experienced in places with a very hot climate, such as the arid desert climate with extreme temperatures year round, like in the UAE and Dubai. It is vital to tackle the UHI effect problem, because it puts people at danger. Many lives are shed each year due to heat strokes, that can be reduced if we take this problem into consideration when we design our cities. The UHI effect can be reduced by simple yet effective steps.
2
Baugh, Sarah. "Oasis Link." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3767.
Full textAbstract:
This document is written from the perspective of the Oasis Link community, a group of dissidents who have resettled in the Mojave Desert sometime in the near future. It is a speculative design document.
Surface is what is visible. It’s the crust of the earth and the face of a meteorite—the coat of a jackrabbit and the waxy skin of a Mojave Prickly Pear. Surface is superficial, but it also reflects and defines the underlying structure of something—it makes the hidden visible.
3
Landing, Oscar. "Project Oasis." Thesis, Umeå universitet, Arkitekthögskolan vid Umeå universitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-135654.
Full textAbstract:
As we all know urbanization is happening all around the globe whether we like it or not and India is no exception. During our visit to India and Ahmedabad we got to see this up close, one thing I saw that stuck in my head was that of a small child covered in dirt playing beside a busy road where the family was living under a makeshift tent made of tarp and scavenged materials . This together with all the pollution and dust from the traffic made the whole scene feel like something out of Mad max movie. My project aims to deal with these families of rural immigrants and the issues and challenges they face when moving from the rural to the city and their initial time in the city before finding their place. The issues I have chosen to focus on is dwelling, networking and finding a job.
4
Floyd, Don. "The Desert Oasis." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/295551.
Full text
5
Toledo, Juan Carlos. "Oasis Esmeralda Lodge." Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/147747.
Full textAbstract:
TESIS PARA OPTAR AL GRADO DE MAGÍSTER EN ADMINISTRACIÓNChile es un lugar con una gran diversidad de paisajes y uno de los países más diversos en cuanto a climas, en donde el desierto de Atacama es uno de los destinos más cotizados y recomendados a nivel mundial según medios internacionales (VER ANEXO 11). En estos parajes del desierto de Atacama se encuentra la localidad de Pica, oasis emplazado en medio de dicho desierto en la región de Tarapacá en donde la agricultura de especies exóticas como mangos de Indochina, limones de México, palmeras datileras de Marruecos han sido cultivos exitosos debido al clima en esa zona, ya que son especies que necesitan muchas horas de sol. A quince minutos del oasis de Pica (VER ANEXO 1) se encuentra el oasis Esmeralda que es parte de los sub oasis que hay alrededor de toda la Pampa del Tamarugal. Oasis Esmeralda es una estación agrícola experimental fundada por CORFO en los años setenta introduciendo distintas especies exóticas (mangos, distintos tipos de cítricos, aloe vera, palmeras datileras, entre otros). Su superficie plantada es de veinte hectáreas. Actualmente, este oasis está orientado a la explotación agrícola sobre todo de producción de mango (variedad Pica que es uno de los más exitosos) y de limón de Pica con denominación geográfica protegida. Este oasis es manejado de manera orgánica utilizando prácticas agrícolas sustentables en donde no incluya químicos de ningún tipo; es decir la misma naturaleza tiene su propio control de plagas, ocupando como fertilizante compost, mulch (desechos de hojas) y lombrices. Por lo que sus productos son diferenciados en esta zona. Este oasis es parte de la empresa familiar de los hoteles Terrado, adquirida el año 1995 por la belleza en donde está emplazado este oasis en pleno desierto, su plantación de quinientas palmeras datileras y la explotación orgánica de frutales exóticos hacen que este oasis sea único en el norte de Chile en donde la necesidad de una hotelería de buen nivel lo hace inminente.
6
Moumni, Youssef. "Oasis, sédentarisation et migration. Une étude de cas : Mareth et ses oasis." Paris 7, 2002. http://www.theses.fr/2002PA070052.
Full textAbstract:
Placés en plein milieu aride tunisien, Mareth et ses oasis ont connu un changement social important. D'un nomadisme dominant dans les époques lointaines de l'histoire à une sédentarisation complètement achevée de nos jours, en passant par le semi-nomadisme influencé par les aléas climatiques et les conditions du milieu, la région en question semble être un cas représentatif de l'évolution sociale dans les régions arides. Dans ces dernières, l'interaction milieu naturel et population est omniprésente dans le changement qui intervient aussi bien dans le champ biophysique que dans l'espace social et humain. Mais la "comparaison d'univers historiques" et la "mise en relation de phénomènes sélectionnés" ont déterminé qu'il existe une complémentarité entre les deux et que l'évolution n'est pas "linéaire et inéluctable" mais dépend d'un développement variable répondant intimement à une dynamique de transformation durable. En conséquence, au niveau social, la relation qui s'impose continuellement entre nomadisme, sédentarisation et migration constitue l'aspect fondamental du changement dans ce milieu. Ce groupe de phénomènes est constamment lié aux transformations du milieu naturel dans un processus continu d'impacts d'interactions où les acteurs sont contraints d'adapter leur action en milieu local en fonction de divers rapports établis avec d'autres espaces dont les dimensions sont plus globales et universelles. Toutefois, dans l'état actuel des choses, la supposition d'une sorte de cohérence entre ce que l'on peut appeler le "social" et le "naturel" en milieu aride est conditionné par le choix d'options de développement qui doivent tenir compte de tous les aspects du milieu, en l'occurrence culturelSituated right in the Tunisian arid land, Mareth and its oases has been experimenting an important social change. Passed from a dominant nomadism far back in the past to a semi-nomadism influenced by climatic risks and land conditions, this region seems to be a representative case of social evolution in the arid lands. In these ones, the interaction between natural region and population is omnipresent in the change that is occurring as well in the biophysical field as in the human and social area. But the "comparison of historical universes" and "selected phenomena put into relation" have determined that a complementarity exists between both and that evolution is not "linear and ineluctable" but is depending on development variability closely linked to durable dynamic transformation. Accordingly, as a result, in the social level, the relation that continually imposes itself between nomadism, settling process and migration constitute the fundamental aspect in this land. This group of phenomena is constantly related with natural transformation in a continuous process of impacts and interactions where social groups or actors are forced to adapt their activity, depending on diverse relations established with other more global and universal areas. However, at the present time, the supposition that coherence exists between "social" and "natural" in arid land is conditioned by development choices that must take into account all the aspects of the land, particularly cultural aspects
7
Kamath, Vignesh Kasargod. "Oasis in the Desert." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/72276.
Full textAbstract:
Downtown districts of cities are usually the first areas to be developed and can inform one of how and why growth occurred in a particular instance. Las Vegas, an oasis within the Mojave desert, originated due to its strategic location in the Southwest US that provided spring water for westward travelers.
The area currently known as downtown Las Vegas, one of the first areas to be developed, is depressed due to economic downturn. An arts district is emerging in this district. However, its growth is hampered by a lack of foot traffic and local activity.
University of Nevada - Las Vegas (UNLV) is in need of a new building for the arts department to accommodate its expanding program.
The purpose of my thesis is to propose a satellite campus in Downtown Las Vegas that can house an arts building along with workshops and art galleries. The goal is to stimulate the development of the downtown arts district by developing strong interaction between the students and local arts activity.Master of Architecture
8
Folliet, Thibaut Michel. "Public Oasis for Nomads." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99203.
Full textAbstract:
As our technologies evolve, the world gets smaller, and it becomes easier for people to travel and mix. Some people travel, some move permanently, creating an exchange of cultures and knowledge. I believe our architecture should also change and reflect this new aspect of our communities. For that aim I propose a new typology of building.
It is a place for people to gather, relax and stay a while, without relying only on other individuals to make the building live and have purpose. The building itself shall be a source of knowledge and experiences akin to tastes and feelings of places abroad.
This will be achieved by combining vernacular architecture from different parts of the world, not by having a French room, an Indian room and a South African room, but by studying the vernacular architecture of these places, and creating a whole new language that can express the multiplicity of those places as one. Someone walking in a room will see an aspect which will be reminiscent of his/her place of origin, whereas someone else entering the same room might notice a different architectural element which will bring forth the image of a totally different place.
As the individual traverses the building he/she will experience a multitude of spaces with different conditions such as height, width, size, but also a change in temperature, humidity, lighting and smells.
Washington D.C. is a very diverse city, with people coming from all over the world, which is a prime example of the melting-pot that is the United States of America. From there, the site was chosen to be in the Dupont Circle area due to the high density of embassies and consulates, business buildings and restaurants.
The building will be similar to an oasis for nomads who would like to go to a place that reminds them of their homelands or for locals to sit by the watering hole and listen to stories of lands far away, while actually experiencing those stories through the building.Master of Architecture
Since a Thesis is one of the rare moments where one can design his own project from choosing the site and program as both client and designer, I wanted to have a project that would be something new and unique. I decided to think about what I could design that would be different, and thus looked inward at what made me different from others. As such I decided to imagine a building that would reflect some aspects of myself, but that would also be relatable for others too. I am French from my parents but also Venezuelan since I was born there in Venezuela. I spent kindergarten in France, was mostly raised in Asia (Bangladesh and Malaysia), and after a year in Cameroon I now live in the United States of America. So when someone asks me where I'm from, I often find myself making an awkward smile accompanied by a silence as I try to understand what the person is asking and what answer I should give. I decided to design a building that would represent the mixture of today's community, a community of nomads where most people have more than just one origin, where we are influenced by the cultures of others. As such my building will be a place for all, with rooms of different conditions allowing the visitor to go to a room that fits his/her preference of size, temperature, lighting and humidity. Similar to how I don't have a Venezuelan leg, a French arm and a Malaysian shoulder, the building was not designed by just copying vernacular architecture from across the globe, but by seeing the common points and combining styles in an all new style that unites and merges the origins together. This is a building that shows how our community is changing and how we can all get along together to make a cohesive whole no matter the differences of the different parts.
9
Divin, Veas Catherine. "Parque y Centro Deportivo Oasis de Calama : paisaje deportivo para la renovación urbana del oasis." Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/115884.
Full text
10
Tavepontakul, Natvalun. "OASIS OF CALM : A STUDY ON CREATING AN URBAN OASIS OF CALM INSPIRED BY NATURE." Thesis, KTH, Ljusdesign, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280033.
Full textAbstract:
We live in daily cycles of brightness and darkness throughout our lives. Light is a device, both through natural and artificial sources, that supports the working of our brains in the processing, reconstruction, and classification of information (Galetta, 2014). According to the models of mental processing provided by various individuals in literature, light as a stimulus can induce specific emotions and behaviors in people (Tomassoni et al., 2015). The objective of this thesis project is to study the possibility of using light patterns and motions to support stress reduction and provide people with a feeling of calm in an indoor setting, where access to nature is limited. The participants (n=30) of the study are students and working adults who live in different cities. They have been asked to evaluate the natural elements and what they perceive as calmness and relaxation through the projection of five different sets of skies. The study considers light as a Biophilic design element, which provides people with calm and a sense of well-being in their work environment (i.e., home office, working space). Through the results of this first survey and insight from the study, the author conducted a lighting experiment using a small model and surveyed the participants’ responses on mood and preference to the different lighting conditions in the model. Consequently, it turned out that most of the participants, from both the online survey and through direct physical interaction with the model, mentioned that they would prefer spending their breaks during their workday in a space that has both patterned light and moving light (not static), rather than the absence of light patterns and motion. By shaping human experience, the study investigates the possibility of using artificial light as a Biophilic design element to provide people with a feeling of calm and, therefore, to support stress reduction in their work environment.
11
Opazo, Durán Lucía. "Estadio municipal Calama: — Deporte y oasis." Tesis, Universidad de Chile, 2010. http://repositorio.uchile.cl/handle/2250/100195.
Full textAbstract:
Dada la importancia de los equipamientos, tanto desde el punto de vista social como físico
del desarrollo de la ciudad, me parece importante abordar el tema deportivo y recreacional,
ya que estos espacios destinados para el ocio y tiempo libre, se convierten en focos
sociales importantes, otorgándoles un carácter de hito dentro de la ciudad, conformándose
un espacio público característico diseñado para el encuentro ciudadano y expresiones
culturales propias de la región. Se convierten en lugares para los ciudadanos consolidando
su identidad y sentido de pertenecía a un lugar.
La construcción de una infraestructura de las proporciones de un estadio, puede
significar para una ciudad una activación y un posicionamiento que sólo es posible con una
inversión de la envergadura que estas infraestructuras urbanas requieren.
Con respecto a Calama, se pone en manifiesto que la inquietud en el ámbito deportivo
no proviene sólo del sector público, sino que existe interés privado esfuerzo e inversión en
el desarrollo de infraestructura deportiva.
El estadio será construido con recursos correspondiente a la tercera etapa de los
estadios bicentenarios y más el aporte de minera Radomiro Tomic.
Remodelar el sector definiendo zonas de encuentro, recreacionales y deportivas
deficientes en la ciudad.
Recuperar la zona ferroviaria para generar áreas de esparcimiento agregándole un
valor extra.
La propuesta es habitar esta gran extensión de terreno con un potencial de
articulador urbano y generador deactividades complementarias al centro cívico, mejorando
la conectividad oriente poniente que se limita por la vía férrea.
Concretar la integración y relación de dos zonas contrapuestas, por medio de un
proyecto deportivo y recreacional que vincule y articule aquellos lugares, concretándose la
unidad urbana.
Lo principal es desarrollar el concepto de espacio público en función de cumplir un rol
de nexo o conexión, que la gente adopte este espacio y le sirva problemática de unir ambos
sectores y crear áreas libres de encuentro y participación ciudadana.
12
Anthony, L. "OASIS : the Omnipresent, Adaptively Supportive, Intelligent System." Thesis, Lancaster University, 1998. http://eprints.lancs.ac.uk/11588/.
Full text
13
Araya, Fiol Scarlett. "Estación experimental Oasis de Niebla - Alto Patache." Tesis, Universidad de Chile, 2014. http://www.repositorio.uchile.cl/handle/2250/130492.
Full text
14
Downs, Kyle Aaron. "Post-Industrial Wilderness:The Quarry is an Oasis." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1460748956.
Full text
15
Vera, Martínez Alvaro J., and Rodríguez Juan Carlos Alvarez. "Desert flower premium oasis water of Pica." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/143083.
Full textAbstract:
TESIS PARA OPTAR AL GRADO DE MAGÍSTER EN ADMINISTRACIÓNAlvaro J. Vera Martínez [Parte I], Juan Carlos Alvarez Rodríguez [Parte II]
San Andrés de Pica es una localidad perteneciente a la Provincia del Tamarugal en la región de Tarapacá, cuyo nombre deriva de la palabra “Piqai” que en lengua quechua significa “Flor en la arena”, y que ha sido lugar de encuentro de múltiples culturas antiguas, las que han dejado su legado tanto en la tierra como en su gente. La localidad presenta las características de un oasis en medio de la planicie del desierto, debido a la particular formación geográfica y características de sus placas subterráneas, todas estas condiciones hacen emerger desde las profundidades de la tierra un agua de inigualable riqueza y pureza, lo que genera una frondosa vegetación y el cultivo de exquisitas frutas características sólo de esta zona, como son el limón y el mango de Pica. Se cuenta con un predio en la zona, el cual cuenta con las características necesarias para poder extraer agua de extrema pureza, filtrada en el mismo subsuelo. El concepto del negocio consiste en poner en valor este recurso y generar un agua de tipo Premium, que sea procesada y envasada en la localidad y que concentre todos los atributos de este lugar único y exótico del planeta. Industria altamente atractiva El consumo de agua en el mundo ya ha superado al de bebidas carbonatadas, lo cual ha puesto en alerta a compañías como Coca-Cola, quienes han visto en el mercado del agua embotellada una excelente proyección de futuro, lo mismo que grandes transnacionales como Nestlé y Danone, quienes ya se han posicionado en el mercado mundial, adquiriendo marcas de aguas embotelladas de renombre, provenientes de varios países, especialmente aquellas con características de pureza, es decir, provenientes de lugares pristinos como glaciares, manantiales y zonas alejadas del planeta, en los cuales la mano del hombre aún no impacta esos ecosistemas, junto con ello también han optado por adquirir aquellas fuentes de agua disponibles en estos lugares para su control y producción directa ante este recurso cada vez más escaso. Zonas como Asia presentan tasas anuales de crecimiento en el consumo que rondan el 20%, más del doble del crecimiento previsto para el resto del mundo. Chile no se queda atrás, con un mercado del agua embotellada de MMUS$415, con tasas de consumo que se dirigen rápidamente a los 30 litros de agua embotellada per cápita, con tasas de crecimiento anual cercanas al 18%, a esto se suma la creciente popularidad del consumo de productos asociados a la vida saludable y al aire libre, en donde el agua ocupa un lugar privilegiado. Dentro de este mercado es el de las aguas de tipo Premium y Gourmet, las cuales están dirigidas a un segmento más exclusivo de personas, que buscan un alto nivel de diferenciación a través de productos exóticos, tal es el caso de marcas nacionales como Ice Swan y Aonni, las cuales con elevadas propuestas de calidad y concepto de producto apuestan a un concepto similar al del vino en cuanto a temas como proveniencia del producto, sabor y tipos de comidas con las cuales se pueda combinar. El producto se divide en cuatro versiones, Desert Flower, Premium Oasis Water of Pica, en su envase de 750 ml de vidrio, en su presentación exclusiva, envase de 500 ml para su distribución en supermercados, en su presentación de 350 ml, Gourmet Oasis Water of Pica, y en sus presentaciones Desert Flower Lemon Essence y Mango Essence de 500 ml para su distribución en supermercados. Los principales conceptos en los cuales se refuerza el valor del producto son sus características de pureza y naturalidad, su origen lejano y exótico, su valor funcional a través de sus propiedades hidratantes para el buen funcionamiento del organismo y su cualidad de provenir desde las profundidades de la tierra “The Deepest Water”. El modelo de negocios contempla la extracción del agua desde la planta que se ubicará en un predio de Pica, la cual será embotellada y enviada a tres grandes ciudades del País, Arica, Iquique, Calama, Antofagasta, Copiapó, La Serena y Coquimbo. En las ciudades se planea su distribución en restoranes (versión de 330 ml) y en hoteles (versión de 750 ml), lo mismo. La inversión de este proyecto contempla un monto de MM$252,3 en un período de 5 años, con un VAN de MM$65,6, una TIR de 25,5% y un ROI de 26%. El EBITDA como Valor Terminal de MM $555,4 considerando la liquidación de la empresa vendiendo todos sus activos a valor libro. Cabe mencionar que en una etapa futura, cuarto y quinto año del proyecto, se piensa en la alternativa de exportación y en el lanzamiento de la línea Desert Flower Essence, poniendo en valor las esencias de dos frutos característicos de la zona de Pica, el mango y el limón.
16
Halik, Walap. "Les évolutions des oasis de la région aride au Xinjiang et leur développement durable : exemple des oasis de Qira : thèse." Nice, 2003. http://www.theses.fr/2003NICE2001.
Full textAbstract:
Cette thèse a pour objet l'étude des oasis de la région autonome oui͏̈goure du Hinjiang. Il s'agit d'analyser l'évolution des oasis de Qira et leur développement durable. Notre projet consiste à rechercher et proposer des règles pour un développement durable à l'échelle d'une région. Au-delà des analyses des évolutions par des enquêtes sur place et des études des données statistiques et images, Il s'agit de réfléchir à cette notion de durabilité. La première partie consacre de longs développements au cadre général du Xinjiang, espace peu connu en Europe. Les évolutions des oasis, de leurs facteurs principaux sont analysés dans la deuxième partie. L'analyse d'image et les SIG complètent ces approches. La modélisation de la dynamique rurale par la programmation linéaire et la théorie du développement rural durable constituent le coeur de la troisième partie. Cette recherche est donc fondamentale, mais elle possède aussi une composante pratique non négligeable.
17
Lineberry, Susan. "Urban oasis : housing for a neo-industrial village." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/23196.
Full text
18
Anderson, Eric. "Urban Oasis : a neo-industrial landscape in Turkey." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/23993.
Full text
19
Alcala, Kathleen. "Plowing by Moonlight: Notes from a Food Oasis." ScholarWorks@UNO, 2011. http://scholarworks.uno.edu/td/1290.
Full text
20
Dubost, Daniel. "Ecologie, aménagement et développement agricole des oasis algériennes." Tours, 1991. http://www.theses.fr/1991TOUR4502.
Full text
21
Blom, John David. "Imperial Oasis: The Decline of Anglo-Saudi Relations." Ohio : Ohio University, 2009. http://www.ohiolink.edu/etd/view.cgi?ohiou1234364240.
Full text
22
Lennihan, Robert. "Ecology of Nostoc in a high arctic oasis /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/5184.
Full text
23
Kechum, Lynn G. "The Boyce Thompson Southwestern Arboretum: A Garden Oasis." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/295520.
Full text
24
Ben, Khalfallah Cherine. "Caractérisation de la dynamique des oasis de Djérid." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTG010/document.
Full textAbstract:
Dans le sud tunisien, tous les périmètres irrigués de type oasis n’ont pas connu le même développement au cours de 50 dernières années. On observe ainsi depuis plusieurs décennies, une évolution des surfaces couvertes qui dans certaines régions ont plus que doublé, alors que pour d’autres elles sont restées pratiquement stables et dans certains cas, ont même connu une régression. Face aux enjeux que ces changements impliquent tant sur le plan environnemental qu’économique et social, l’élaboration d’une typologie des oasis ainsi que l’estimation de leur état sont d’une importance stratégique aux niveaux national, régional et international. Pour connaître l'état de la végétation dans ces oasis, des systèmes de surveillance de ces écosystèmes oasiens devraient être mis au point et renseignés régulièrement par des données prises sur ces surfaces cultivées. Ces données peuvent être obtenues en partie par les systèmes d’observations satellitaires à haute et à moyenne résolution spatiale, et forte répétitivité temporelle, qui par leur vision synoptique, constituent une source d’informations particulièrement adéquate. Le travail de recherche présenté ici porte sur l’exploration de méthodes développées à partir de deux types de séries temporelles d’images d’observation de la Terre : celles produites par l’expérience SPOT-5 (Take5) et le produit MOD13Q1 du capteur MODIS, respectivement à 10m et 250 m de résolution spatiale, et avec des répétitivités de 5 et 26 jours. Ces méthodes et données ont été testées sur la région du Djérid dans le but final de mettre en place un système de surveillance des oasis basé sur l'analyse des signatures temporelles à partir d’images d’observations de la Terre prises très régulièrement dans le temps.Deux démarches différentes d’analyse ont été menées pour chaque type de données, basées sur le traitement de séries temporelles d’un indice de végétation, le NDVI. La première repose sur les variations temporelles de l’activité végétale sur une courte période d’avril à septembre 2015 à travers la série d’images SPOT-5 (Take5) : la comparaison entre oasis s’est faite à l’échelle du périmètre irrigué (une oasis peut être composée de plusieurs périmètres irrigués) en utilisant la méthode statistique de classification ascendante hiérarchique. La seconde utilise une technique de décomposition temporelle d’un signal pour extraire la tendance d’une série d’images pluriannuelles à l’échelle d’un point géographique (un pixel de 250mx250m) à travers la série temporelle MOD13Q1 de 2000 à 2016.Les résultats obtenus à partir du traitement et de l’analyse de ces séries temporelles optiques ont permis de montrer qu’il est possible d’identifier les principaux types de périmètres irrigués présents dans la région de Djérid, et retrouver rétrospectivement l’histoire récente de leur développement. Ils mettent aussi en évidence le fait que les images SPOT-5 (Take5), qui préfigurent celles actuellement disponibles avec les images produites par les satellites Sentinel2, améliorent considérablement la caractérisation spatio-temporelle du fonctionnement des oasis grâce à la finesse de leur résolution spatiale et de leur répétitivité temporelle.Les résultats de cette thèse permettent de dégager de nouvelles pistes de couplage entre télédétection, données de terrain et analyses statistiques en apportant une information continue dans le temps et dans l’espace pour le suivi et la surveillance des écosystèmes oasiens. En effet avec deux capteurs tel que Sentinel2, couplé aux données historiques de MOD13Q1, il est permis désormais de caractériser précisément les oasis d’une façon presque continueIn southern Tunisia, not all irrigated oasis-type perimeters have undergone the same development, we observed an evolution of the covered surfaces which more than doubled in the last half-century, while for other regions they have remained practically stable and in some cases, a decrease in these areas. These changes have affected environmental and economic systems. In this context, the evaluation of the state of oases and the development of a typology of oases systems is a key-issue for sustainable agriculture. To know the state of vegetation in these oases, monitoring systems for oasis ecosystems must be informed by data on cultivated areas. These data can be obtained in part by satellite observation systems with high and moderate spatial resolution and high temporal repetitiveness, offer a synoptic vision that makes them a particularly appropriate information source for the estimation of such data. The research work presented here focuses on the exploration of methods developed from two types of time series of Earth observation images: those produced by the SPOT-5 experiment (Take5) and the MOD13Q1 product of the MODIS sensor, at 10m and 250m spatial resolution respectively. These methods and data were tested in the Djerid region with the final aim of setting up an oasis monitoring system based on the analysis of time signatures from Earth observation images made very regularly over time.Two change detection approaches based on NDVI time series. The first consists on temporal variations in vegetation activity over a short period from April to September 2015 through the SPOT-5 time series (Take5): the comparison between oases was made at the scale of the irrigated perimeter (an oasis can be composed of several irrigated perimeters) using agglomerative hierarchical clustering (AHC) method.The second uses a temporal decomposition technique to extract the trend from a multi-year time series at the scale of a geographical point (a 250mx250m pixel) across the MOD13Q1 time series (2000-2016).Results obtained from the processing and analysis of optical time series have shown that it is possible to identify the main types of irrigated perimeters present in the Djerid region, and to retrospectively trace their recent development history. They also highlight the fact that SPOT-5 (Take5) images, which prefigure those currently available with images produced by Sentinel2 satellites, significantly improve the spatio-temporal characterization of oases functioning through their 10m spatial resolution and 5-day temporal repetitiveness.The results of this thesis highlight new possibilities for the combination of remote sensing, field data and statistical analysis, delivering nonstop information in time and space on the characterization of oases systems. Indeed, with a single sensor such as Sentinel2, coupled with the historical data of MOD13Q1, it is now possible to accurately characterize oases on a continuous basis
25
Tong, Chui-shan Zandie. "Revitalization of Nathan Road corridor : landscape + consumerism = urban oasis /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B34609829.
Full text
26
Middlecoff, Whit. "Urban oasis : civic space in a neo-industrial village." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/23315.
Full text
27
Andrews, Vasanth. "Obsteric anal sphincter injuries (oasis) : diagnosis management and prevention." Thesis, University of London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511889.
Full text
28
Tong, Chui-shan Zandie, and 唐翠珊. "Revitalization of Nathan Road corridor: landscape + consumerism = urban oasis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45009685.
Full text
29
Gollnick, Emily. "Leprosy in the Dakhleh Oasis (Egypt) During Roman Rule." Honors in the Major Thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/430.
Full textAbstract:
This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucfBachelors
Arts and Sciences
Anthropology
30
Kwok, Sean Zee 1975. "Urban oasis : the central market redevelopment of Hong Kong." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/68364.
Full textAbstract:
Thesis (M.Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2001.Includes bibliographical references (p. 81).
In the ultra-urban centers of today, "nature" has become a precious resource that often gets sacrificed in the name of progress and development. The presence of nature has become increasingly elusive in the concrete jungle of present-day metropolises. And in the contemporary urban center of Hong Kong, where development is extensive and population is saturated, this displacement of nature cannot be spared. Looking high above, the Victoria Peak reveals itself in a distance between the crowded towers hugging the hillside; patches of sky are held up by the pinnacles of the numerous skyscrapers; intermittent rays of sunlight penetrates the close-knitted cracks between buildings. Under the pressure of development, the nature of Hong Kong struggles to manifest itself in increasingly fleeting glimpses. As the engine of progress churns on, the repression of nature intensifies in the urban center of Hong Kong. Humanity within its inhabitants is suppressed under more and more layers of desenSitizing urban artificiality. Testing my belief that urbanity does not necessarily precludes nature, my thesis proposes to recover the balance in the contemporary urban life. My thesis investigates the collection, distillation and intensification of the elusive natural forces in today's Hong Kong and using architecture phenomena to raise the awareness of these forces in the minds of its occupants. In my project, I attempt to reveal the "urban nature" of Hong Kong, proposing a humanistic urbanism for the city as an alternative
Sean Zee Kwok.
M.Arch.
31
Sablone, Alexis (Alexis Jay). "Nuclear oasis : the story of 10,000-year-old trash." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103486.
Full textAbstract:
Thesis: M. Arch., Massachusetts Institute of Technology, Department of Architecture, 2016.Cataloged from PDF version of thesis.
Includes bibliographical references (page 13).
Each year, we produce 9,000 metric tons of high-level nuclear waste to add to the other 250,000 that have accumulated over the last few decades. While there are no clear plans for its permanent storage, one thing remains certain: it will outlive us all and everything we know. Current laws stipulate that "permanent storage solutions" must contain nuclear waste and its deadly radioactivity for 10,000 years though other estimates say 100,000 is probably more accurate. We are now living in the Anthropocene-the self-proclaimed Age of Man. We have dubbed ourselves a "geological force" but lack the ability to comprehend the implications of our actions at geological scales of time. Some may perceive this as persistent form of recklessness. The challenge of nuclear waste directly confronts us with our own chronotopic inadequacies. Architecture is directly implicated here-challenged with the need for permanence-permanence in terms of both materiality and meaning. This thesis investigates the nature of permanence. It will look far into the past and far into the future, recalibrating our sense of time, space and scope in order to examine how architecture can reconcile scales of geologic and human time. This thesis asks: Amidst the dramatic, inevitable changes our world will see over the next 10-100 thousand years-changes more fantastic than any piece of science fiction could describe-is there a way for architecture to last? To communicate a consistent message across millenia?
by Alexis Sablone.
M. Arch.
32
Al, Sakhel Heba. "Le Paléolithique moyen dans des oasis du Proche-Orient." Paris 10, 2004. http://www.theses.fr/2004PA100040.
Full textAbstract:
Cette thèse porte sur l'étude technique des vestiges lithiques de deux sites archéologiques de la Syrie Centrale. Le premier, Umm el Tlel, est une occupation en plein air, la seconde, Douara est une occupation en grotte. Cette région, actuellement caractérisée par un environnement steppique aride, était autrefois au paléolithique moyen (entre 15000 à 35000 ans) caractérisé par un climat extrêmement instable tant tôt semi-humide tant tôt semi-aride. Le but recherché, à partir d'une approche technologie de plusieurs assemblages lithqiues, est de déterminer l'identité culturelle et les stratégies de subsistance des occupants de ces sites. Les résultats ont révélé qu'effectivement, au moment de la couche VI3c', que le site d'Umm el Tlel alors au bord d'un lac fonctionnait comme un lieu d'activité spécialisé, il y pratiquait les travaux de taille, orientée vers la production de pointe Levallois, il y pratique également des travaux de boucherie et de traitement de la viande (séchage et fumage). Au moment de V2γ/?a, le site d'Umm el Tlel était à proximité d'un marigot, il fonctionnait comme un lieu de convergence ou aucune activité ne se démarque parfaitement, il serait donc plus un site d'habitat. Alors que le site d'Umm el Tlel exhibe une variabilité dans la fonction et le fonctionnement du site au moment de VI3c' et V2γ/?a, le site de Douara n'a pas révélé aucune différence concernant la fonction du site pendant la période d'occupation de la couche E et D. Le site était un lieu de passage et de halte de courte durée. .This thesis relates to technical study of the lithics vestiges of two archeological sites of Syria Centrale. The first, Umm el Tlel site, is an open air occupation, the second site, Douara is an occupation in cave. This area, currently characterized by an arid steppe environment, was formerly, in the Middle Paleolithic (between 1500000 to 35000 years) characterized by an extremely unstable climate between semi-humid and semi-arid. Th aim, to use technological approach of several lithics assemblies, is to determine cultural identity and the strategies of subsistence of the occupants of this site. The results show that, at the moment of the VI3c' layer, the site of Umm el Tlel which was located at the edge of a lake, functioned like a specialized activity place, in where the occupants practiced theit activities of knapping, directed towards the production of the Levallois points, it also practices their work of butchery and treatment of meat (drying and manuring). At the time of V2γ/?a the Umm el Tlel site was in the vicinity of a backwater, it functioned like a place of convergence where no activity is perfectly dissociated, it would be an habitat site. Whereas the Umm el Tlel site exhibe a variability in the function and operation of the site at the time of VI3c' and V2γ/?a, the site of Douara do not revealed any difference concerning the function of the site during the occupation period of the layer E and D. The site was crossing point and a halt of short duration. .
33
Cariou, Alain. "Le jardin saccagé : anciennes oasis et nouvelles campagnes d'Ouzbékistan." Paris 4, 2002. http://www.theses.fr/2002PA040169.
Full textAbstract:
Domaine de transition entre les immensités steppiques et le Toit du Monde du Pamir, l'Ouzbékistan est aussi un espace de contact entre les grandes civilisations de l'Ancien Monde : persane, turque, chinoise, méditerranéenne, indienne et slave. De cette configuration géographique à la croisée des grandes aires culturelles, le pays a hérité d'une brillante agriculture oasienne. A la lumière du passé, cette recherche éclaire les traits originaux des campagnes traditionnelles d'Ouzbékistan et esquisse une géographie des espaces ruraux actuels. Elle montre comment et pourquoi le vieux jardin oasien, longtemps préservé de l'épreuve du temps et des hommes, a été saccagé par la politique agricole soviétique. A partir d'aménagements titanesques, des millions d'hectares irrigués ont été développés jusqu'à épuisement des fleuves et de l'Aral. Paradoxalement, l'Ouzbékistan actuel se singularise par le maintien du système agraire hérité de l'expérience socialiste. La période post-soviétique s'interprète donc plus en terme de continuité que de rupture. Pourtant, se dessine dans l'ombre un renouveau agricole renouant avec des pratiques traditionnellesAs a transition land between the vast steppes and the roof of the world of Pamir, Uzbekistan is also an area of contact between the great civilizations of the Ancient World: Persian, Turkish Chinese, Mediterranean, Indian and Slavic. From this geographical configuration, at the crossing point of the main cultural regions, the country inherited an brillant oasis-based agriculture system. In the light of past, this research shows the original features of traditional countryside in Uzbekistan and sketch a geography of today's rural areas. It also shows how and why the old oasis garden, long preserved from the ordeal of time and men, was ravaged by the Soviet agricultural policy. From titanic rural management plans, millions of hectares of collectivized lands were conquered until depletion of rivers and of Aral. Paradoxically, among the group of the ex-Soviet republics, present-day Uzbekistan distinguishes itself by the preservation of an agrarian system inherited from the socialist experience. The post-Soviet period is thus interpreted more in term of continuity rather than rupture. Nevertheless, a dim agricultural renewal is slowly rising, taking up again traditional practices
34
Aitchitt, Mustapha. "Studies on somatic embryogenesis and development of DNA markers in date palm (Phoenix dactylifera L.)." Thesis, Imperial College London, 1995. http://hdl.handle.net/10044/1/7315.
Full text
35
Patten, Shirley Fay. "Pottery from the late period to the early Roman period from Dakhleh Oasis, Egypt." Australia : Macquarie University, 2000. http://hdl.handle.net/1959.14/44492.
Full textAbstract:
Thesis (PhD)--Macquarie University, Division of Humanities, Dept. of Ancient History, 2000.Bibliography: p. 475-498.
PART I -- Thesis introduction -- Location, environment and routes of the Western Desert -- Cultural, historical and archaeological setting of Dakhleh Oasis -- Introduction to the vessel typology -- Introduction to the site catalogue -- Technology of pottery manufacture -- Fabrics and wares -- Conclusion -- PART II -- The vessel typology -- The site catalogue.
This thesis analyses a body of largely unpublished ceramic material from Dakhleh Oasis in the Western Desert of Egypt. The material is primarily from the survey of Dakhleh Oasis and the testing of sites by members of the Dakhleh Oasis Project and, except for some Phase 4 material recovered from excavations at Ismant el-Kharab, is unstratified. It covers a thousand years of Egyptian pottery-making from the eighth century BC to the late second century AD. -- A comprehensive survey of published and unpublished material from other sites in Egypt and adjacent regions has been undertaken to acquire comparative material for the pottery from Dakhleh Oasis. In addition, a study of the technical characteristics of the vessels that have remained accessible has been undertaken to describe and explain ancient pottery practices and to build up a framework for comparative purposes. -- With this body of information, a vessel typology divided into two series, each of which are further divided into two phases, has been devised and the chronology of the vessels determined. This ceramic typology has been used to compare surveyed sites of different utilisation - cemetery, settlement and temple sites - and to establish a dating system for these sites. The resulting chronology will be a guide to the determination of future excavations in the oasis and will assist in the on-going study of the socio-economic development of the oasis. The typology also provides a corpus of pottery for the processing of material from future excavations in Dakhleh Oasis and information for other ceramicists working in Egypt and elsewhere. -- The comparative survey of ceramic material from other sites demonstrates that Dakhleh Oasis, although a remote region in the Western Desert of Egypt, maintained contact with the Nile Valley and more distant areas. It also shows that, while this interaction influenced local pottery styles, the oasis retained and developed its own pottery traditions. -- In addition, a preliminary analysis has been made of fabrics and clays for descriptive purposes and to increase knowledge of the ancient ceramics from the oasis. -- A database has also been built to store and manipulate the information on this extensive body of ceramic material from Dakhleh Oasis. The pottery drawings have been produced in a format readily accessible for electronic transfer to researchers in the field of Egyptian ceramics.
Mode of access: World Wide Web.
498, [199] p. ill. (some col.), maps
36
Brister, Aaron B. "OASIS AND XBP-1 ACTIVITY IN OSTEOBLAST DIFFERENTIATION AND OSTEOSARCOMA." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1196287582.
Full text
37
Salhi, Abdelkader. "Transformations spatiales et dynamiques socio-environnementales de l'oasis de Ouargla (Sahara algérien) : une analyse des perspectives de développement." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0382/document.
Full textAbstract:
Le Sahara est réputé comme étant un écosystème fragile (l’oasis) occupé par un système social solidaire et identitaire. L’activité agricole est considérée comme l’activité « principale » autour de laquelle tourne une organisation sociale et solidaire. Les infrastructures de base se développent et se multiplient, depuis l’indépendance de l’Algérie, avec l’évolution de la population au Sahara.La dynamique territoriale de la capitale des oasis « Ouargla » est stimulée, depuis l’antiquité, par le commerce caravanier. L’exploitation des hydrocarbures et la mobilisation des nappes d’eau souterraines « non ou faiblement renouvelables » pour le développement agricole, ont permis une recomposition sociale et territoriale permanente, plaçant « l’eau » en tant que contrainte environnementale majeure et enjeu central de développement et de la durabilité du système oasien.L’interventionnisme « fort de l’Etat » dans les régions sahariennes, les nouvelles préoccupations d’ordre patrimoniale et les dynamiques contemporaines permettent-t-elles la durabilité du système oasien millénaire ?The Sahara is reputed to be a fragile ecosystem (the oasis) occupied by a social solidarity and identity system. Agricultural activity is considered to be the "main" activity around which a social and solidarity-based organization operates. Since the independence of Algeria, the basic infrastructure has developed and multiplied, with the evolution of the population in the Sahara.The territorial dynamics of the capital of the oases "Ouargla" has been stimulated since antiquity by caravan trade. The exploitation of hydrocarbons and the mobilization of groundwater "non or slightly renewable" for agricultural development, allowed a permanent social and territorial recomposition, placing "water" as a major environmental constraint and central stake of Development and sustainability of the oasis system.Are the "strong state interventionism" in the Saharan regions, the new patrimonial concerns and the contemporary dynamics allow the sustainability of the millennial oasis system?
38
Sistla, Shambhu Maharaj Sastry. "How Far Web Services Tools Support OASIS Message Security Standards?" Thesis, University of Skövde, School of Humanities and Informatics, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-983.
Full textAbstract:
There is a great deal of interest burgeoning in the intellectual community regarding Web Services and their usage. Many writers have tried to bring awareness about some unconceived threats lurking behind the enticing Web Services. Threats due to Web Services are on an all time high giving an alarming knock to the Web Services security community. This led to the, Organization for the Advancement of Structured Information Standards (OASIS) made some constraints mandatory in order to standardize message security and these constraints and specifications are presented through a document called WS Security -2004. This work is an attempt to check the support offered by various Web Services Tools available currently. It introduces the reader to Web Services and presents an overview of how far some of the tools have reached in order to make the Web Services environment safe, secure and robust to meet the current day’s requirements. A quantitative approach was taken to investigate the support offered by servers like BEA, Apache Axis etc. The conclusions drawn show that most of the tools meet the imposed standards but a lot more is expected from the web community and these tools; if at all the visions about safe and secure Web Services are to be realized.
39
Yeung, Fuk-chi, and 楊復始. "Soul oasis: a sanctuary in the heart of Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47544545.
Full text
40
Chase, John H. Jr. "A Naval Aviation Maintenance Organizational Activity Strategic Information System (OASIS)." Thesis, Monterey, California. Naval Postgraduate School, 1990. http://hdl.handle.net/10945/30681.
Full textAbstract:
Approved for public release, distribution is unlimitedOrganizational Maintenance Activities (OMAs) within the Naval Aviation Maintenance organization do not have an adequate information system (IS). This seriously degrades their ability to efficiently and effectively manage their aircraft, equipment, and personnel. Information systems to support both Naval Air Systems Command (NAVAIR) and the operational chain of command include Naval Aviation Depot Information System (NADIS), Naval Air Logistics Data Analysis (NALDA), and Naval Aviation Logistics Command Management Information System (NALCOMIS). The portion of NALCOMIS intended to support OMAs is not scheduled to be fully implemented until 1999. Decisions made at OMAs have an immediate impact on force readiness and mission capability. Moreover, the largest unfulfilled need for information systems in naval aviation community is at the OMAs. This thesis examines the history of Information system in Aviation Maintenance, analyzes why OMAs lack adequate information systems, and offers a solution within the current technological capabilities of the aviation maintenance community. The potential improvement in operational readiness, avoidance of increased maintenance and personnel costs, improved decision making, and accuracy of information made available to all levels of the Navy chain of command makes implementing an Organizational Activity Strategic Information System (OASIS) imperative
41
Selmi, Slaheddine. "Diversité et fonctionnement des peuplements d'oiseaux nicheurs des oasis tunisiennes." Paris 6, 2001. http://www.theses.fr/2001PA066224.
Full text
42
Yawney, Jennifer. "Development of a general screening method for acidic, neutral, and basic drugs from whole blood using the Oasis HLB columns and the Oasis MCX columns." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ56150.pdf.
Full text
43
Dachy, Tiphaine. "Kharga (Égypte) durant la préhistoire holocène : l'occupation humaine d'une oasis et sa périodisation." Thesis, Toulouse 2, 2015. http://www.theses.fr/2015TOU20044.
Full textAbstract:
L’oasis de Kharga, est située au cœur du Sahara oriental, l’occupation humaine de cette région est strictement corrélée à un facteur limitant : l’eau, dont la présence ancienne est perceptible à travers des formes géomorphologiques telles que les playas et les sources artésiennes fossiles. Les données étudiées dans le cadre de cette recherche doctorale ont été rassemblées au cours de dix années de recherches dans le cadre de la mission archéologique de Douch (IFAO). La prospection systématique a permis de dresser la carte archéologique de ce territoire et mis en évidence plus de 84 sites composés de 359 ensembles attribués à la Préhistoire récente. Fouilles stratigraphiques, sondages et collectes de surface ont livré un matériel dont l’étude est au cœur de notre recherche. L’analyse est ici guidée par plusieurs axes de réflexion. Établir les jalons d’une périodisation des installations humaines par la caractérisation et l’étude comparative des assemblages archéologiques axée sur les industries lithiques taillées s’avère un préalable nécessaire. Un programme de datation radiocarbone permet d’esquisser les contours d’une chronologie absolue pour cette séquence culturelle. Sur cette base, il devient possible de saisir l’articulation diachronique qui s’opère entre les installations humaines et les différentes formes de paysage reflétant des stratégies d’occupation du territoire adaptatives. Cette approche permet de questionner la singularité de l’oasis dans les scénarios de mobilité et de dynamiques de peuplement à l’échelle macro-régionale dans une période marquée par des phénomènes de transition majeurs tant climatiques que techno-économiquesKharga oasis is located in the heart of the eastern Sahara. In this region, human occupation is linked to a limiting factor: water, whom former presence is attested by geomorphological forms as playas and artesian fossil springs. The data studied here were gathered in the course of 10 years of fieldwork during the Douch archaeological mission (IFAO). A systematic survey permitted to draw the archaeological map of this area and revealed 84 sites including 359 clusters attributed to Holocene Prehistory. The archaeological material coming from stratigraphic excavations, tests and collections serve as a basis for our work. The analyse is guided by several lines of thought. Establishing the archaeological sequence thanks to lithic industries and radiocarbon dating is the first step. It is then possible to understand the relationship between landscape, environment and human occupation’s strategies. This approach allows us to question the place of Kharga at a regional scale during times of technologic, economic and climatic change
44
Bel, Kadhi Mohamed Sadok. "Etude bioécologique de Bemisia tabaci (Homoptera : Aleyrodidae) dans les serres géothermiques du sud tunisien. Possibilité de son contrôle biologique au moyen de parasitoïdes indigènes." Aix-Marseille 3, 2004. http://www.theses.fr/2004AIX30058.
Full textAbstract:
Le présent travail mené au niveau du secteur géoserricole dans le sud tunisien est une contribution pour connaître les facteurs favorisant l'apparition des dégâts du virus TYLC transmis par le biotype " B " de Bemisia tabaci, en vue de tracer une stratégie de lutte contre l'insecte vecteur. La caractérisation moléculaire a montré la dominance du biotype " B " et la rareté du biotype " Q ". Son potentiel biotique est comparable à celui rencontré en France. L'étude des déplacements des adultes entre l'oasis et les serres, a permis de mettre en évidence l'étroite relation entre les deux écosystèmes, notamment le rôle que jouent les oasis, en tant que station refuge estivale. L'étude a montré des différences notables dans la distribution des stades pré-imaginaux et imaginal, en fonction de la conduite des cultures, de la position des feuilles sur les plantes, des lignes de culture, et en fonction du temps. Le biotype " B "dans le sud tunisien est parasité par Encarsia sophia et Eretmocerus mundus. Ce dernier est le parasitoïde indigène le plus fréquemment associé. Il présente des caractéristiques biologiques relativement importantes. Un effort de recherche pour mettre au point une stratégie de lutte intégrée basée sur l'utilisation des agents biologiques, dans les serres chauffées, s'imposeThe current led work in the south of tunisia is a contribution to know factors, favoring the appearance of damages of the virus TYLC transmitted by the biotype " B " of Bemisia tabaci, in view to trace a strategy of struggle against the vector insect. The molecular characterization has shown the prevalence of the biotype "B " and the rarity of the biotype " Q ". Its biotic potential is comparable to that meet in the south of France. The study of adult displacement between the oasis and greenhouses, has allowed to put in obviousness a narrow relationship between the two ecosystems, notably the role that play oasis, as station Summer refuge. Notable difference watch in the distribution of larvae stages and adult, according to the conduct of cultures, the position of leaves on plant them, lines of culture, and in function of the time. The biotype " B " is found parasitic by an indigenous parasitoids where two species dominate Encarsia sophia and Eretmocerus mundus. This last kind is the parasitoïd native it most frequently associated. . It presents relatively important biological characteristics. That supposes more research and experimentation efforts to develop an integrated struggle strategy based on a utilization of biological agents
45
Chau, Ka-kin Helen. "An oasis for children nursery and daycare centre in Victoria Park /." Click to view the E-thesis via HKUTO, 1999. http://sunzi.lib.hku.hk/hkuto/record/B31984459.
Full textAbstract:
Thesis (M.Arch.)--University of Hong Kong, 1999.Includes special report study entitled : Child's cognition of space. Content page of Thesis report missing. Includes bibliographical references. Also available in print.
46
Battesti, Vincent. "Les relations équivoques, approches circonspectes pour une socioécologie des oasis sahariennes." Phd thesis, Université René Descartes - Paris V, 1998. http://tel.archives-ouvertes.fr/tel-00120735.
Full textAbstract:
Je conseille aujourd'hui de se reporter à l'ouvrage qui reprend les idées de cette thèse, paru en 2005 aux éditions IRD, en libre accès à cette adresse:http://hal.archives-ouvertes.fr/halshs-00004609/
------------------------
L'objectif de ce travail portait sur les relations entre les sociétés et leur milieu naturel. Plusieurs éléments m'incitèrent à travailler sur un modèle de la vie oasienne plus complexe. Ce fut d'abord l'ubiquité d'un déconcertant exotisme dans l'analyse scientifique et ce fut par ailleurs une tendance simplificatrice à concevoir l'oasis comme un « point fertile dans le désert » facile à saisir et comme définie exclusivement par une approche essentialiste de l'élément rare, l'eau.
Mes études antérieures en biologie m'encouragèrent à consacrer spécialement mon travail aux palmeraies des oasis. J'ai surtout travaillé sur une région du Sud tunisien, le Jérid, mais aussi sur Djanet, dans le sud de l'Algérie, et Zagora au Maroc.
Pour saisir ces relations entre les sociétés oasiennes et leur environnement, j'ai évité le dualisme nature / culture, en fusionnant ces catégories et poursuivant le projet d'établir une socioécologie oasienne.
La construction de la nature oasienne fut analysée en se basant sur sa structure spatiale à trois niveaux, du large (l'oasis en général) au restreint (le jardin). Selon leur localisation dans l'espace, trois niveaux de possibilités de praxis oasienne sont différenciés. Dérivant de l'organisation de l'espace, les niveaux correspondants de temporalités peuvent être distingués ; ils autorisent ces différentes praxis.
S'il est toutefois illusoire de définir une « norme oasienne » (ethnographique) pour les procès socioécologiques. Les praxis varient selon les différentes catégories d'acteurs. Ou plutôt, les acteurs du monde oasien usent de ressources variées selon la situation dans laquelle ils sont engagés et ces ressources sont certes des ressources naturelles, mais tout aussi des ressources d'ordre conceptuel ou idéel : ce que tel ou tel ensemble d'idées de la nature (de la nature) permet et facilite comme type de relation à l'environnement.
Les jardiniers des oasis, on le vérifie, n'agissent pas sur leur environnement selon une norme dont la praxis serait déterminée strictement par le milieu ou la société. Il n'y a pas de préséance de la société ou du milieu comme facteur déterminant. Il y a conjugaison des deux et on peut évaluer leurs influences relatives selon la trame oasienne d'espace et de temps. Cette approche circonspecte de la complexité oasienne éclaire les relations équivoques du chercheur à son objet (méthodologie), de l'individu à sa société (sociologie) et de la société à son milieu (écoanthropologie).
47
Chau, Ka-kin Helen, and 周家建. "An oasis for children: nursery and daycare centre in Victoria Park." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31984459.
Full text
48
Al-Zokair, Abdulaziz A. "An investigation of soil salinization in Al-Hassa Oasis, Saudi Arabia." Thesis, University of Exeter, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251100.
Full text
49
Khattab, Omar. "Lifestyle and environmental quality in the enabling settlements, Siwa Oasis, Egypt." Thesis, University of Newcastle upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239796.
Full text
50
Nabulsi, Y. A. "Control of the irrigation water resources of the Al-Hasa oasis." Thesis, Liverpool John Moores University, 1987. http://researchonline.ljmu.ac.uk/5592/.
Full textAbstract:
This thesis describes the present situation of the Al-Hasa oasis, which is critically dependent on a single over-used water resource. Evidence is presented to show that water usage is inefficient, and that real improvements are possible, but only if the local farmers are provided with the means of determining the soil moisture levels of their fields. Simple tensiometers and soil moisture cells are considered for this purpose and both would be effective. Soil moisture cells are likely to be the better choice, but more work is needed to evaluate their response to saline soil moisture conditions. The thesis shows that the widely used pressure plate (for laboratory evaluations) is less accurate than is the simpler filter paper system. Such laboratory determinations will be needed to ensure that the chosen field instruments are as accurate as is wanted. An interesting, and still incompletely understood, phenomenon is that the soil grain sizes do affect the accuracy of results from the chosen field instruments. More work is planned on this subject. A crucial factor also affecting the long term security of the oasis is to improve near surface drainage and evidence is presented that details the adverse effects of the present inadequate drainage system. In view of the vast financial investment already made into the drainage of the oasis, improvements that allow a better drainage of each individual field are seen as sensible. Evaluations of more modern soil moisture measuring equipment (transducer and psychrometer systems) reveal that these are inappropriate for use at Al-Hasa. The emphasis of the thesis is on the positive contribution to water use efficiency that can be achieved by the individual farmer. If the thesis conclusions are accepted then the continued prosperity of Al-Hasa can be assured at a very small cost.