Letteratura scientifica selezionata sul tema "Estuary process"
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Articoli di riviste sul tema "Estuary process":
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van Buuren, A., e L. Gerrits. "Understanding and managing a complex estuary: the process towards more congruence between the physical system characteristics and the management system of the Westerschelde (Netherlands)". Hydrology and Earth System Sciences Discussions 5, n. 3 (11 giugno 2008): 1371–405. http://dx.doi.org/10.5194/hessd-5-1371-2008.
Abstract (sommario):
Abstract. In this article, we expand on the relationship between the social processes of policymaking, management and research in the context of the Westerschelde estuary. This complex estuary system, located in Belgium and the Netherlands, has its own morphological and ecological characteristics and dynamics, and has three core functions: economically, it makes the port of Antwerp accessible; ecologically, it generates habitats for certain unique species; and in terms of safety, it prevents the hinterland from being flooded. We analyze how the social processes of policymaking, management and analysis have focused on these three aspects, and how they have affected the estuary. We proceed to develop a framework for evaluating the social system of policy-making, management and research. This framework focuses on the social system's adaptive capabilities (how it evolved in a non-linear fashion), integrative capacity (how the system's interconnectivity was taken into account), and participative competencies (how the different interests and insights regarding the estuary were absorbed). This framework was then applied to twenty years of policymaking about, management of, and research on the Westerschelde estuary. We conclude that, because of policy learning effects, policy/management and research take the estuary's self-organizing capacities into account much more than they did in the past. However, the self-referential behaviour of policymakers, managers and researchers makes it possible that an anthropocentric and technocratic approach towards managing the estuary, indicating a disconnection between the social and physical systems, could return.
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Chu, Ao, Zhengbing Wang, Huib De Vriend e Marcel Stive. "A PROCESS-BASED APPROACH TO SEDIMENT TRANSPORT". Coastal Engineering Proceedings 1, n. 32 (2 febbraio 2011): 83. http://dx.doi.org/10.9753/icce.v32.sediment.83.
Abstract (sommario):
A process-based model for the Yangtze Estuary is constructed to study the sediment transport in the estuary. The proposed model covers the entire tidal region of the estuary, the Hangzhou Bay and a large part of the adjacent sea. The dominant processes, fluvial and tidal, are included in the model. The calibration of the model against extensive flow, water level, salinity and suspended sediment data shows a good representation of observed phenomena. With the present calibrated and validated model, the residual flow field and the residual sediment transport field are obtained. The residual sediment transport pattern gives insight into the morphological behaviour of the mouth bars.
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Ding, Yan, Keh-Chia Yeh e Shao-Tang Wei. "INTEGRATED COASTAL PROCESS MODELING AND IMPACT ASSESSMENT OF FLOATING AND SEDIMENTATION IN COASTS AND ESTUARIES". Coastal Engineering Proceedings, n. 35 (23 giugno 2017): 18. http://dx.doi.org/10.9753/icce.v35.management.18.
Abstract (sommario):
In this study, an integrated coastal process model was applied to assess impact of coastal flooding and sedimentation in an estuary in Taiwan and to evaluate performance of proposed engineering plans for flood prevention and sedimentation management. This in-situ validated model was used to simulate and predict hydrodynamic processes and morphological changes induced by multiple hydrological forcing such as river flood flows, waves, tides, and storms surges from rivers to the estuary and its adjacent coasts. Simulation results quantified coastal flooding risks, erosions, sedimentation, and channel refilling. Predicted dynamic responses to typhoons and monsoons were utilized for identifying the most effective engineering plan to reshape the geometry of the estuary. After the selected engineering plan was accomplished, this model was applied again to further predict morphological changes in the newly-developed estuary. This paper demonstrates effectiveness of a simulation-based coastal and estuary planning approach to manage flood and sedimentation driven by complex physical processes from river flows, waves, tides, and sediment transport.
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Chen, Ruirui, Xuezhong Jiang e Jing Chen. "Satellite Imagery Recording the Process and Pattern of Winter Temperature Field in Yangtze Estuary Interrupted by a Cold Wave". Atmosphere 14, n. 3 (28 febbraio 2023): 479. http://dx.doi.org/10.3390/atmos14030479.
Abstract (sommario):
Sea surface temperature (SST) is a key marine ecological metric. An optimized split-window algorithm was used to invert the Yangtze Estuary’s temperature field during a cold wave process. Additionally, MODIS SST inversion results were used to explore the effects of typical cold waves on the Yangtze Estuary’s temperature field through the application of a temperature profile analysis method and a multiscale, multidirectional edge detection algorithm. According to the findings, (1) the cold wave altered the temperature field characteristics and the temperature front intensity, morphology, and spatial distribution pattern within the Yangtze Estuary for a short period. The strong temperature front displayed irregular edges and scattered patterns due to the combined effects of cold water masses produced by the cold wave and the tides and the warm water currents outside the mouth. (2) The cold wave caused significant short-term deviations in the Yangtze Estuary’s SST. The cold water tongue stretched across the entire Yangtze Estuary, where the temperature dropped sharply with time, with the maximum cooling occurring outside the mouth, at 12.2 °C, and the minimum cooling occurring inside the mouth, at only 5.5 °C. (3) The spatially gradual warming of the Yangtze Estuary’s SST from inside to outside the mouth became a low–lower–high pattern during cold waves. (4) The cold wave exhibited a greater influence on the strength, form, and distribution of the temperature front. Studying the effects of cold waves on the Yangtze Estuary’s temperature field has significant theoretical and practical implications for understanding the changes in the winter temperature field, environmental protection, disaster mitigation, and prevention.
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Yin, Yunzhu, Harshinie Karunarathna e Dominic E. Reeve. "A Computational Investigation of Storm Impacts on Estuary Morphodynamics". Journal of Marine Science and Engineering 7, n. 12 (20 novembre 2019): 421. http://dx.doi.org/10.3390/jmse7120421.
Abstract (sommario):
Global climate change drives sea level rise and changes to extreme weather events, which can affect morphodynamics of coastal and estuary systems around the world. In this paper, a 2D process-based numerical model is used to investigate the combined effects of future mean sea level and storm climate variabilities on morphological change of an estuary. Morphodynamically complex, meso-tidal Deben Estuary, located in the Suffolk at the east coast of the UK is selected as our case study site. This estuary has experienced very dynamic behaviors in history thus it might be sensitive to the future climate change. A statistical analysis of future storms around this area, derived from a global wave model, has shown a slight increase of storm wave heights and storm occurrences around the estuary in future as a result of global climate variations under medium emission scenario. By using a process-based model and by combining the forecast ‘end-of-century’ mean sea level with statistically derived storm conditions using projected storms over a time slice between 2075–2099, we determined hydrodynamic forcing for future morphodynamic modelling scenarios. It is found that the effect of increased sea level combined with future storms can significantly alter the current prevailing morphodynamic regime of the Deben Estuary thus driving it into a less stable system. It is also found that storm waves can be very significant to morphodynamic evolution of this tide-dominated estuary.
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Dinh, Cham Dao. "Effects of hydrodynamical regime on morphological evolution at Cua Dai estuary and coastlines of Quang Nam province". VIETNAM JOURNAL OF EARTH SCIENCES 42, n. 2 (9 maggio 2020): 176–86. http://dx.doi.org/10.15625/0866-7187/0/0/15005.
Abstract (sommario):
In recent years, accretion-erosion processes are frequently recorded in the estuary of Cua Dai, Quang Nam province. Most recently, however, sand bars are formed in the estuary not far from the place where the Inland Waterways Authority of Vietnam had previously dredged. The estuary continues to be accreted by sand. These have been drawing special attention of national and international scientists. While there is accretion at the estuary, eroded processes are strongly recorded along the coastlines of Quang Nam province. Therefore, it is necessary to carry out a study in the effects of the hydrodynamic regime on morphological changes in the Cua Dai estuary and coastlines of Quang Nam province. The goal of this paper is to fully interpret the causes, regimes of accretion and erosion processes over the study area. In this study, satellite images and hydrodynamic models of Delft3D and MIKE 11 are applied. The results show a strong accretion process in the estuary of Cua Dai. Sandbar formation across the Cua Dai estuary comes from the interaction of flood, wave, and current conditions during the northeast monsoon. This mainly affects the changes in morphology in the estuary of Cua Dai, Quang Nam.
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Dinh, Cham Dao. "Effects of hydrodynamical regime on morphological evolution at Cua Dai estuary and coastlines of Quang Nam province". VIETNAM JOURNAL OF EARTH SCIENCES 42, n. 2 (9 maggio 2020): 176–86. http://dx.doi.org/10.15625/0866-7187/42/2/15005.
Abstract (sommario):
In recent years, accretion-erosion processes are frequently recorded in the estuary of Cua Dai, Quang Nam province. Most recently, however, sand bars are formed in the estuary not far from the place where the Inland Waterways Authority of Vietnam had previously dredged. The estuary continues to be accreted by sand. These have been drawing special attention of national and international scientists. While there is accretion at the estuary, eroded processes are strongly recorded along the coastlines of Quang Nam province. Therefore, it is necessary to carry out a study in the effects of the hydrodynamic regime on morphological changes in the Cua Dai estuary and coastlines of Quang Nam province. The goal of this paper is to fully interpret the causes, regimes of accretion and erosion processes over the study area. In this study, satellite images and hydrodynamic models of Delft3D and MIKE 11 are applied. The results show a strong accretion process in the estuary of Cua Dai. Sandbar formation across the Cua Dai estuary comes from the interaction of flood, wave, and current conditions during the northeast monsoon. This mainly affects the changes in morphology in the estuary of Cua Dai, Quang Nam.
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Shi, Honghua, Deliang Yu, Liting Yin, Yadong Sui, Yongzhi Liu, Shuqing Qiao, Weimin Wang, Wei Zheng e Dewen Ding. "Source-sink process of microplastics in watershed-estuary-offshore system". Journal of Cleaner Production 338 (marzo 2022): 130612. http://dx.doi.org/10.1016/j.jclepro.2022.130612.
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Hong, Bo, Wenping Gong, Shiqiu Peng, Qiang Xie, Dongxiao Wang, Haobo Li e Hongzhou Xu. "Characteristics of vertical exchange process in the Pearl River estuary". Aquatic Ecosystem Health & Management 19, n. 3 (24 giugno 2016): 286–95. http://dx.doi.org/10.1080/14634988.2016.1205438.
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Wu, Dean, Yigang Wang, Yuchen Shao e Guodong Hu. "Simulation and Statistical Analysis on the Transport Process of Salt Water Mass from the North Branch in the Yangtze River Estuary". Journal of Physics: Conference Series 2224, n. 1 (1 aprile 2022): 012065. http://dx.doi.org/10.1088/1742-6596/2224/1/012065.
Abstract (sommario):
Abstract Based on the analysis of measured data, a two-dimensional hydrodynamic Salinity Transport Model in the Yangtze River estuary is established by using Mike21 model. This model is used to study the average daily distribution and changing patterns of the saline water mass in the South Branch that are from the North Branch while only the saltwater intrusion from the North Branch is considered. It determines the intrusion process of saline water mass from the North Branch and the area that are affected by saline water intrusion. In addition, through the research of salt water mass core moving down and salinity variation in the south branch channel, the flow pattern and mechanism of salt water mass in the south branch channel are revealed. The saltwater intrusion from the North Branch has a great impact on the vertical, horizontal and vertical salinity fields of the Yangtze River estuary. The variation trend of statistical variance, deviation and standard deviation of the half month time series of salinity at each point along the route is basically the same, showing a gradual decreasing trend towards the downstream. Those show that the salinity dispersion is larger in the upstream estuary and lower outside the estuary. Combined with the salinity kurtosis and skewness, the deviation degree and direction of the salinity distribution at each point along the route can be judged, which can reflect the comprehensive process of runoff, tidal current and topography. Therefore, the kurtosis and skewness statistics can effectively describe the law of transport and dynamic characteristics of intrusion saline water masses in the Yangtze River Estuary.
Tesi sul tema "Estuary process":
1
Huckle, Jonathan Mark. "Colonisation and development of salt marsh in the Dee estuary, NW England : integrating large-scale pattern and small-scale ecological process". Thesis, University of Chester, 2000. http://hdl.handle.net/10034/76154.
Abstract (sommario):
The Dee estuary, one of the most important British estuaries in terms of size and conservation value, has been subject to extensive colonisation and development of intertidal mudflats by salt marsh vegetation. In the last century, acceleration of this process has been attributed to the ability of Spartina anglica C.E. Hubbard to colonise bare sediment. The research in this thesis aims to investigate the ecological patterns and processes involved in the development of salt marsh vegetation. These have been examined using a large-scale approach involving remote sensing techniques and a small-scale approach to examine ecological processes at the level of the individual plant and species. Large-scale temporal patterns in the distribution were investigated by analysing a sequence of monochrome aerial photographs dating from 1955 to 1997. At the marsh apex, initial rapid colonisation was followed by a decreased rate of expansion and a reduction in the pioneer zone. This suggested a steepening of the marsh elevation gradient, which is interpreted as the marsh approaching its natural limit of expansion. The rate of salt marsh expansion was consistent across the time sequence for the second target area, a cross-section of the marsh gradient, but with S. a«g/zca-dominated colonisation of mudflats changing to colonisation by a pioneer community co-dominated by S. anglica and Salicornia europaea. Large-scale spatial distribution patterns were further investigated using multispectral remote sensing data from 1997. Radiometric data were used to define the spectral characteristics of the major types of salt marsh vegetation. Airborne Thematic Mapper data were used to classify the reflectance data from the whole marsh to determine the spatial distribution of plant communities based on their spectral characteristics. Mapping of these communities provided a baseline that will be a useful tool for future management of the salt marsh. An experimental approach was used to examine the role of abiotic and biotic factors on the growth and interactions between S. anglica and Puccinellia maritima (Huds.) Parl. In two series of competition experiments, P. maritima exerted a one¬way effect over S. anglica. The intensity of this interaction was increased in environmental conditions favourable to P. maritima, and was greater in terms of above-ground than below-ground biomass. In both experiments, S. anglica exhibited a disproportionate reduction in below-ground competitive interaction in abiotic conditions less favourable to P. maritima. A corresponding increase in rhizomes suggested that this is a potential mechanism by which S. anglica may evade competitive neighbours at low marsh elevations. An appreciation of the importance of scale has led to a multi-scaled and holistic view of the ecological process of salt marsh colonisation and development. Integration of both large and small-scale approaches has provided valuable information on the ecological patterns and processes, and has important implications for current and future management of salt marsh in the Dee estuary.
2
Strong, David. "The effects of monsoon precipitation and organic matter distribution, process and evolution in the Pearl River Estuary, China". Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.559491.
Abstract (sommario):
The Asian Summer Monsoon (ASM) is an important climate system, affecting over half of the global population. Understanding past ASM changes is therefore crucial for assessing potential impacts of future climate change in Asia. However, previous reconstructions of ASM precipitation intensity generally rely on the local-scale catchments of lake, cave and vegetation-based records. There is significant disparity between these records, possibly attributable to local microclimate responses overprinting the regional signal. This thesis reconstructs precipitation-driven river flux to the Pearl River Estuary (PRE), a major river system in China, to record monsoon variability over a more regional scale. A suite of biornarker-based ratios indicative of terrestrial organic matter (TOM) flux (the concentration ratio of terrestrial to marine n-fatty acids, n-alcohols and sterols, and the BIT Index), are analysed in contemporary grab samples and a sediment core from 6.5 ka to present. Additionally, carbon isotope (813C) values of leaf wax n-fatty acids are analysed from 6.5 ka to present to assess potential vegetation change. TOM input to the modem PRE generally decreases from river to ocean. Superimposed on this decrease, the biomarker distributions record a rapid decrease across the delta toe, indicating that organic matter (OM) burial is largely dictated by the sedimentary regime. From 6.5 ka to present, BIT indices show strong covariance with a precipitation record within the drainage basin, indicating that soil OM input to the PRE covaried with paleoprecipitation 6.5 ka to present. The other three biomarker ratios also record a general decrease in TOM. However, these ratios record some disparity at 5.5 ka, suggesting a change in vegetation OM input to the core. Leaf wax 813C values record a significant enrichment at 2 ka, consistent with a previously published bulk 813C record, suggesting an anthropogenically-driven shift to a greater C4 plant component with the onset of agriculture. 111.
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Sousa, Lisa Pinto de. "Model to integrate ecosystem services into the planning process". Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/21697.
Abstract (sommario):
Doutoramento em Ciências e Engenharia do AmbienteTriggered by the Millennium Ecosystem Assessment, among other seminal publications, ecosystem services research has experienced an almost exponential growth over the past two decades. Since then, ecosystem services have become widespread and the concept has been used in different disciplines, separately and in collaboration, to address complex socioecological problems. These efforts were accompanied at political level with a number of international and European initiatives, such as the creation of the Intergovernmental Platform on Biodiversity and Ecosystem Services, the adoption of the Strategic Plan for Biodiversity of the Convention on Biological Diversity, and the adoption of the EU Biodiversity Strategy. Driving the uptake of ecosystem services is the argument that its integration can lead to better environmental decision-making. Moreover, by emphasizing the ecosystems’ central role on human well-being it provides anthropocentric-oriented argumentation for biodiversity and nature conservation. This is particularly relevant for coastal regions which are complex socialecological systems with high ecological value but simultaneously under significant pressure. This challenges traditional forms of management and calls for a more integrative, adaptive, inclusive, and ecosystem-based management. Despite of the growing body of work, the actual uptake of ecosystem services into policy and decision-making processes is still limited and challenging. On this basis, and considering the constraints when putting ecosystem services into practice, this research aims to: i) develop and discuss a managementoriented approach to identify, classify and map the ecosystem services provided by a complex social-ecological system; ii) develop an in-depth study of the ecosystem services present in Ria de Aveiro coastal region, as well as the main pressures and potential impacts; iii) explore the potential of integration of the ecosystem services on spatial planning process, particularly on Estuary Programmes. Estuary Programmes were seen as a unique opportunity to investigate these issues, since they are special programmes, are focused on complex socialecological systems, and can be further explored. Though Vouga Estuary Programme was created in 2009, it has not been developed yet, which presents an opportunity for testing the proposed approach and methodologies in the future. Although it uses Ria de Aveiro costal region as case study, the lessons learned and the proposed model can be used in other social-ecological systems beyond the estuary level or Portugal. Despite of the identified biophysical, technical and management constraints, this research proved that it is possible to map multiple ecosystem services using available data, and that ecosystem services knowledge can be incorporated in spatial planning process by adapting current planning practices (including participation). As new data becomes available, ecosystem services’ assessment methods become standardized, and technical skills evolve, the proposed approach and methodologies can be gradually improved, following the adaptive management rationale. This research suggests that spatial planning processes need to bring together various disciplines from natural and social sciences, and be informed by multiple layers of information regarding the provision of ecosystem services, pressures, alternative futures and stakeholders’ preferences and concerns. Principles such as comprehensive, adaptive, inclusive, and integrative were considered key for guiding ecosystem services integration into spatial planning process. Additionally, it highlights the viability and relevance of integrating ecosystem services into the technical configuration of Estuary Programs and spatial planning processes, in general. It also demonstrates how the integration of these concepts helps to innovate and strengthen the process of environmental planning and management towards sustainability, territorial and social cohesion, responding to current societal challenges and contributing to human well-being.
Os serviços de ecossistemas têm vindo a assumir um papel central na investigação científica, observando-se um crescimento exponencial no número de publicações científicas nas últimas duas décadas. Impulsionado por um conjunto de publicações influentes, designadamente a avaliação global do Millennium Ecosystem Assessment, este conceito tem vindo a ser adotado por várias disciplinas no sentido de responder, individual ou conjuntamente, aos desafios decorrentes da complexidade dos sistemas socio-ecológicos. Paralelamente, a nível político, tem-se observado um aumento significativo de iniciativas internacionais e europeias com enfoque nos serviços de ecossistemas, como a criação da Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, a adoção do Plano Global Estratégico para a Biodiversidade, e a adoção da Estratégia Europeia para a Biodiversidade. Vários argumentos têm motivado a sua apropriação, nomeadamente a convicção de que a integração dos serviços de ecossistemas permitirá melhorar o processo de tomada de decisão no desenho e implementação das políticas ambientais, salientando o papel basilar dos ecossistemas no bem-estar humano. Estes aspetos são particularmente relevantes para as zonas costeiras, uma vez que estas são sistemas socio-ecológicos complexos caracterizados, simultaneamente, por um elevado valor ecológico e elevada vulnerabilidade. Esta circunstância desafia as práticas tradicionais de planeamento e apela a uma gestão mais integradora, adaptativa, inclusiva e fortemente baseada nos ecossistemas. Não obstante o crescente volume de investigação desenvolvido nesta área, a integração dos serviços de ecossistemas no processo de planeamento e tomada de decisão é considerada, ainda, limitada e desafiante, em particular nestes territórios de interface – as zonas costeiras. Assim, e tendo em consideração os constrangimentos da sua aplicação prática, são objetivos específicos desta investigação: i) desenvolver e discutir uma abordagem, orientada para a gestão do território, que permita identificar, classificar e mapear os serviços de ecossistemas; ii) desenvolver um estudo aprofundado dos serviços de ecossistemas presentes na Ria de Aveiro e zona costeira adjacente, bem como as principais pressões e potenciais impactos; iii) propor um modelo de integração dos serviços de ecossistemas no processo de planeamento espacial, aplicado aos Programas de Estuário. A figura de Programa de Estuário – por ser um programa de natureza especial, por incidir sobre um sistema socio-ecológico complexo, e por ainda não estar devidamente explorada – foi encarada como uma oportunidade única para investigar esta temática. Criado em 2009, o Programa de Estuário do Vouga não foi, à data, elaborado. Neste contexto real, antevê-se como uma excelente oportunidade de futuro para testar as metodologias e abordagem desenhadas ao longo desta investigação. Apesar do âmbito territorial da investigação ter incidência na Ria de Aveiro e zona costeira adjacente, a abordagem, os resultados e o modelo desenvolvido podem ser replicados noutros sistemas socio-ecológicos que vão para além dos estuários e do território nacional. A complexidade da área de estudo evidenciou constrangimentos de ordem biofísica, técnica e de gestão territorial. Através deste estudo demonstra-se que é possível, com base na informação existente, mapear múltiplos serviços de ecossistemas e incorporar este tipo de informação no processo de planeamento através da adaptação das práticas correntes (inclusivamente de participação). À medida que novos dados vão surgindo, que os métodos e técnicas vão sendo padronizados, e que as competências técnicas vão evoluindo, a abordagem e metodologias propostas podem ser gradualmente melhoradas, seguindo a lógica da gestão adaptativa. Constata-se a necessidade de o processo de planeamento envolver várias disciplinas das ciências naturais e sociais, bem como ter em consideração múltiplos tipos de informação, não só relativa aos serviços prestados pelos ecossistemas, mas também às pressões, aos cenários alternativos, e às preferências e preocupações dos atores chave. Finalmente, identificam-se quatro princípios fundamentais que devem orientar a integração dos serviços de ecossistemas no processo de planeamento e gestão territorial: holístico, adaptação, inclusão, integração. Esta investigação evidencia, de modo inequívoco, a viabilidade e relevância de integração dos serviços de ecossistemas na configuração técnica dos Programas de Estuário, e dos processos de planeamento em geral. Demonstra, ainda, o modo como a integração destes conceitos inova e fortalece o processo de planeamento ambiental e gestão do território, numa ótica de sustentabilidade, coesão territorial e social, respondendo aos atuais desafios societais e contribuindo para o bem-estar humano.
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Virolle, Maxime. "Origine et prédiction spatio-temporelle des tapissages argileux dans les réservoirs silicoclastiques - Apports de la comparaison entre des réservoirs enfouis (Permien et Crétacé) et un analogue actuel (estuaire de la Gironde) Detrital clay grain coats in estuarine clastic deposits: origin and spatial distribution within a modern sedimentary system, the Gironde Estuary (south-west France) Influence of sedimentation and detrital clay grain coats on chloritized sandstone reservoir qualities: Insights from comparisons between ancient tidal heterolithic sandstones and a modern estuarine system Identification of a chloritization process in the Wealden facies sandstones (Early Cretaceous) of the Paris Basin, France". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS190.
Abstract (sommario):
La qualité des réservoirs est l’un des facteurs « risque » pour l’exploration d’hydrocarbures ou pour le développement futur de la géothermie dans les hydro-systèmes silicoclastiques. Les propriétés réservoirs sont définies par les valeurs de porosité et perméabilité. Dans les réservoirs silicoclastiques profondément enfouis, des coatings de chlorite authigénique autour des grains de quartz permettent de préserver ces propriétés. Les mécanismes régissant la formation et la distribution de ces tapissages sont encore mal connus. Les objectifs de ce projet de thèse sont: (1) de caractériser (minéralogie, cristallochimie, propriétés texturales et microstructurales) et de déterminer la distribution spatio-temporelle des tapissages argileux dans des environnements sédimentaires bien contraints et dans un cadre stratigraphique bien défini; (2) de mieux comprendre les facteurs contrôlant la formation des tapissages argileux dans les réservoirs silicoclastiques; (3) de décrire les processus intermédiaires de formation de chlorite authigénique via différents minéraux précurseurs au cours de l’enfouissement; (4) de prédire la distribution des bonnes propriétés réservoirs en lien avec les coatings argileux. L’analogue moderne choisit dans le cadre de cette étude est l’estuaire de la Gironde où la présence de tapissages argileux détritiques a pu être mise en évidence dans la zone intertidale des barres tidales et barres de méandres, mais aussi dans des carottes sédimentaires de plusieurs mètres de profondeur. Les mécanismes de formation de ces tapissages ont été appréhendés avec l’interaction entre processus hydrodynamiques et biologiques. Des analogies avec des réservoirs gréseux enfouis (>3500m) ont permis de déterminer que les dépôts sableux de barres tidales externes déposées à la fin d’un cycle transgressif sont les cibles privilégiées pour trouver de bonnes propriétés réservoirs dans les réservoirs estuariens. L’évolution des coatings détritiques au cours de l’enfouissement a pu être retracée par l’étude de réservoirs enfouis entre 400 et 1000m de profondeur. Les coatings détritiques se transforment en berthiérine et interstratifié chlorite-smectite vers 600-900m de profondeur et des températures comprises entre 30-40°C. Ces minéraux constituent de véritables précurseurs aux coatings de chlorites ferreuses apparaissant plus en profondeurThe reservoir quality is one of the "risk" factors for hydrocarbon exploration or for the future development of geothermal energy in siliciclastic hydrosystems. Reservoir properties are defined by porosity and permeability values. In deep buried siliciclastic reservoirs, chlorite coatings around quartz grains help to preserve these properties. The mechanisms behind these coatings are still poorly understood. The objectives of this study are: (1) to characterize (mineralogy, crystallography, textural and microstructural properties) and to determine the spatial and temporal distribution of clay and clay coatings in well constrained sedimentary environments and within a well-defined stratigraphic framework; (2) to better understand the factors controlling the formation of clay coatings in siliciclastic reservoirs; (3) to describe the intermediate processes of authigenic chlorite formation via different precursor minerals during burial; (4) to predict the distribution of good reservoir properties in relation to clay coatings. The modern analogue chosen for this study is the Gironde estuary, where the presence of detrital clay grain coats was detected in the intertidal zone of tidal and point bars, but also in pluri-meters long sedimentary cores. The formation mechanisms of these coatings have been investigated with the interaction between hydrodynamic and biological processes. Analogies with buried sandstone reservoirs (>3500m) showed that sand facies of external tidal bars deposited at the end of a transgressive cycle are the preferred targets for finding good reservoir properties in estuarine reservoirs. The evolution of detrital clay grain coats during burial was approached by studying buried reservoirs between 400 and 1000m deep. The detrital coatings are transformed into berthierine and mixed-layer chlorite-smectite at depths between 600 and 900m and temperatures between 30-40°C. These minerals are true precursors to ferrous chlorite coatings that appear at greater depth
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Mahamod, Yusuff. "Sedimentary processes in the Dwyryd Estuary". Thesis, Bangor University, 1989. https://research.bangor.ac.uk/portal/en/theses/sedimentary-processes-in-the-dwyryd-estuary(ca0aea23-480c-4032-ba10-12a9adee740c).html.
Abstract (sommario):
This study aims to describe and quantify the important sedimentary processes which control the dispersal and accumulation of sediment in the Dwyryd Estuary, adjacent to Tremadog Bay in West Wales. It is shown that sedimentation in the estuary is dominantly control by fast tidal currents, and in the bay by weak tidal currents. Landward transport of coastal sediments by tidal currents is the residual sediment transport path. The spatial distribution of textural parameters of the estuarine sediments is related to the strength of tidal currents as well as the morphology and bathymetry of the study area. The estuarine sediments, predominantly sand, are very similar in texture and mineralogy to the adjacent beach sediments but markedly different to the river sediments. However, the beach sediments are slightly coarser and more poorly sorted than the estuarine sediments. In contrast, sediment in the deeper parts of Tremadog Bay are finer than both the estuarine and beach sediments due to the presence of substantial admixture of mud. The grain size distributions of most of the sediments are neither lognormal nor log-hyperbolic reflecting the great variability of hydrodynamic conditions in the study area. Using previously published flume data, a new sediment transport rate formula in the form of a power law has been developed for computation of total sediment load from the bed mean grain size and flow parameters: Uc The exponent n varies from 2.7 (for 0.93 mm sand) to 4.18 (for 0.19 mm sand). This is in contrast to the Bagnold (1966) formula which regards the exponent value (equal to 3) as constant for all grain sizes. Sediment transport patterns depend on the asymmetry between flood and ebb tidal currents due to distortion of the tidal wave on entering the estuary. Estimates of sediment budgets from surveyed profiles suggest that large amounts of sand have been transported from coastal areas into the estuary, supporting the mineralogical evidence. The estimates are of the same order of magnitude as estimates using flow velocity data and the above sediment transport formula.
6
Cordier, Mateo. "Ecosystème estuarien et système économique régional: faisabilité d'une intégration par modélisation input-output : application au cas de l'habitat halieutique dans l'estuaire de la Seine". Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209905.
Abstract (sommario):
Le modèle input-output régional environnementalisé développé dans la thèse de M. Cordier suggère qu’il serait possible de restaurer 25% des surfaces naturelles de nourriceries de poissons détruites dans l’estuaire de la Seine entre 1834 et 2004. Le modèle suggère que la mesure de restauration pourrait augmenter de 15% à 23% la biomasse de soles produite dans l’estuaire par rapport à une situation sans mesure. Quant à l’effet des coûts de restauration sur les agrégats macroéconomiques (PIB, emploi, etc.), il génère une diminution qui ne dépasse pas 0,5% par rapport à une situation sans mesure. Le modèle montre cependant que trois secteurs sont particulièrement touchés par la mesure, leur bénéfice étant considérablement réduit. Cela indique le compromis à réaliser entre les objectifs écologiques à long terme et les objectifs économiques sectoriels à court terme. La quantification des compromis par le modèle constitue un atout utile aux processus de décision participatifs multicritère / The regional green input-output model developed in Mateo Cordier's PhD shows that it seems possible to restore 25% of the natural areas of fish nurseries destroyed in the Seine estuary between 1834 and 2004. The model suggests that the restoration measure could increase between 15% and 23% the biomass of sole generated by the estuary compared to a situation without measure. Regarding the impact of restoration costs on macro-economic indicators (GDP, employment, etc.), it generates a decrease that does not exceed 0,5% compared to a situation without measure. However, the model shows that three sectors are particularly impacted by the measure. Their benefits are considerably reduced. This shows the trade-off that occurs between ecological targets on the long run and economic targets on the short run. The quantification of such trade-offs in the model is particularly useful to public participation in decision-making.Doctorat en Sciences agronomiques et ingénierie biologique
info:eu-repo/semantics/nonPublished
7
Yang, Chengfan. "Li isotope study of Yangtze River sediments : new constraints on climate, weathering and carbon cycle relationships". Electronic Thesis or Diss., Sorbonne université, 2020. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2020SORUS433.pdf.
Abstract (sommario):
Au cours de ce travail, j’ai réalisé une série d'études dans le bassin du Changjiang (Yangtze), afin de mieux comprendre l'influence de ces effets.Tout d'abord, l'exploitation du barrage des Trois Gorges (TGD) a modifié la composition géochimique des sédiments en aval. Depuis 2003, les sédiments venant des hauts bassins ont été en grande partie retenus en amont, tandis que les sédiments précédemment déposés dans le bassin moyen-inférieur ont été progressivement remis en suspension. Ces processus expliquent l’évolution géochimique des sédiments exportés vers la mer de Chine. En deuxième partie, une étude systématique démontre que les compositions isotopiques en lithium des phases dissoutes et particulaires se comportent de façon conservative dans la zone de mélange de l'estuaire du Changjiang. Cependant, les phases échangeables ne représentent qu'une faible quantité de Li, ce qui explique son impact négligeable dans cette zone. Troisièmement, Cette étude confirme que dans les grands bassins versants, l'altération chimique peut réagir rapidement à de grandes amplitudes climatiques. Ceci est particulièrement bien illustré, dans la carotte CM97, par la période du Younger Dryas. Depuis 2 000 ans, les δ7Li des argiles s’accentuent clairement par rapport à la période précédente, à cause de l'érosion des sols de plaines induite par l'homme. En résumé, ces résultats apportent de nouveaux éclairages sur l'interprétation des proxys et sur la réponse de l'altération chimique aux variations climatiques, ce qui est essentiel pour mieux quantifier l’impact du l’altération continentale sur les climats passés et futurs de notre planèteIn order to better understand the weathering-climate feedback, a series of studies was carried out in the Changjiang (Yangtze) Basin. First, the operation of the Three Gorges Dam (TGD) changed downstream sediment geochemical compositions. Before 2003, large amounts of upstream-derived sediments deposited and experienced further weathering in the mid-lower basin. Since 2003, strong riverbed sediment resuspension changed the roles of the mid-lower reaches from important sinks to major sources of sediments delivered to the sea. As a consequence, an intensified weathering intensity of downstream sediment was observed.Second, dissolved δ7Li exhibit a conservative behavior in the Changjiang Estuary. During the process of SPM transported offshore, weathering product flocculated and deposited, while primary minerals resuspended. The combined effect resulted in the UCC-like SPM δ7Li values. There is a Li isotope fractionation between the dissolved load and exchangeable phase. However, this process shows negligible impact on δ7Li of dissolved load and particulates. Third, weathering response to climate is complex in large river basins. During the Younger Dryas, the positive excursion of clay δ7Li is consistent with enhanced incongruent weathering, in response to temperature cooling. The minor variation of clay δ7Li at 11 – 2 ka likely indicate stable weathering and mile climate variation. Over the last 2 kyr, the fluctuation of clay δ7Li is mostly caused by intensification of human activities. In summary, this thesis sheds new lights on the weathering-climate feedback over geologic past, and provides perspectives on how human activities affect natural processes
8
Larcombe, Piers. "The post-glacial evolution and present-day sedimentary processes of the Mawddach Estuary". Thesis, Bangor University, 1992. https://research.bangor.ac.uk/portal/en/theses/the-postglacial-evolution-and-presentday-sedimentary-processes-of-the-mawddach-estuary(45824215-5e60-4c6b-b29e-017319409c81).html.
Abstract (sommario):
The Mawddach Estuary and Barmouth Bay now occupy what was a deeply incised glaciated valley at the last ice maximum. This valley is now filled by a complex suite of sediments, up to 75m thick at the present estuary mouth, which record increasing marine influence. A regressive coastline is also present today. In the Bay, Welsh glacial drifts were eroded to form deep depressions, infilled by complex cross- stratified Late- or Postglacial sediments, overlain by a parallel-stratified sequence, perhaps formed behind a coast-parallel morainal barrier. Net sediment transport of the fine sand in the Bay is shoreward, controlled by a strong mesotidal and wave regime. Calculated sediment transport rates infer long term sediment accumulation rates of 82mm per year for the estuary as a whole, but repeated surveys suggest much spatial variation within the estuary. Waves greatly enhance sediment transport in the bay, by approximately 30 times in storms, when coarse sand is mobilised. The estuarine sand fines landward, from medium- to very finegrained. Grain size and petrological evidence suggest sediment is derived from erosion of glacial deposits in Cardigan Bay. A highly skewed tidal wave creates strong flood currents and net flood sediment transport throughout the estuary and in the southwest portion of the bay. The estuary is generally well-mixed, and the tidal wave is a standing wave with a progressive component. The estuary comprises a two part hydrodynamic system, with decreased currents and sediment transport inland of a hard rock constriction. Intertidal megaripples dominate large areas of the seaward portion of the estuary. They show very complex morphological and dynamic behaviour over a lunar cycle. Detailed velocity profile measurements over these megaripples, show complex relationships of bedform to flow. Flow parameters show considerable scatter, and have only weak correlations with bedform morphology or migration. Within each flood-ebb cycle, the relationship of shear velocity to roughness length appears related to the underlying bedforms. Natural variation of megaripple behaviour is a major factor in limiting palaeoflow estimates from deposits of intertidal megaripples. A concluding chapter discusses the relationship between sea-level, sedimentation, and estuarine hydrodynamics, through the Holocene. Sea level rise brought drowning and erosion of coastal glacial complexes, leading to conditions allowing spit formation and growth, with, in the estuary, increased tidal asymmetry, salinity and low water elevation. Fine-grained estuarine sedimentation was initiated in the sheltered back-barrier region, intertidal flats and supratidal marshes prograded, and tidal channels were progressively restricted towards the northern side of the estuary mouth. Within the modern estuarine sand wedge, preserved estuarine sedimentary structures may exhibit an upwards-increasing expression of flood- directed sediment transport.
9
Veronezi, Gisele Pereira de Assunção. "Escuta de criança vítima de crime de estupro de vulnerável: perspectivas do direito ao depoimento especial no Tocantins". Universidade Federal do Tocantins, 2018. http://hdl.handle.net/11612/990.
Abstract (sommario):
O presente estudo tem como objeto a análise das condições de (in)efetividade do direito da
criança ser inquirida em processos judiciais por meio do depoimento especial do Poder
Judiciário do Estado do Tocantins. A finalidade da pesquisa consiste em averiguar em que
medida o Poder Judiciário do Estado do Tocantins está preparado para realizar o depoimento
especial, quais os caminhos que vem percorrendo para tanto e quais as perspectivas para a sua
implantação. Os objetivos centrais da pesquisa foram apontar a evolução histórica do
tratamento jurídico dispensado à criança, inclusive na seara penal especificamente quanto ao
crime de estupro de vulnerável, apresentar o método tradicional de oitiva do sujeito passivo
do crime e o método do depoimento especial e, por fim, analisar da realidade atual das
condições materiais e humanas necessárias à oitiva da criança pelo método do depoimento
especial, na tentativa de identificar estruturas e projetos existentes no Poder Judiciário
tocantinense com tal desiderato. O método de abordagem foi o descritivo; o de pesquisa,
dedutivo. Informações advindas de diversas fontes oficiais de pesquisa foram reunidas,
organizadas e avaliadas. Apurou-se que o Poder Judiciário do Estado do Tocantins não reúne
condições materiais e humanas necessárias à implementação do depoimento especial.
Concluiu-se que, apesar dos esforços e iniciativas, o depoimento especial, trazido pela Lei n.
13.431/2007, não encontra ambiente para efetiva e imediata aplicação no Estado do
Tocantins, sequer a curto ou médio prazo, o que representa uma violação ao direito de a
criança ser ouvida por meio do depoimento especial.The present study has as its object the analysis of the conditions of (in) effectiveness of the right of the child to be interviewed in judicial processes through the special testimony of the Judicial Branch of the State of Tocantins. The purpose of the research is to find out to what extent the Judicial Branch of the State of Tocantins is prepared to carry out the special testimony, what are the paths it has been going through and the perspectives for its implementation. The main objectives of the research were to point out the historical evolution of the legal treatment given to the child, including in the criminal chamber specifically regarding the crime of rape of vulnerable, to present the traditional method of hearing of the subject of the crime and the method of the special testimony, To analyze the current reality of the material and human conditions necessary for the child's hearing through the special testimony method, in an attempt to identify existing structures and projects in the Tocantins' Judiciary with such desideratum. The method of approach was descriptive; the research, deductive. Information from various official sources of research was gathered, organized, and evaluated. It was found that the Judicial Branch of the State of Tocantins does not meet the material and human conditions necessary for the implementation of the special testimony. It was concluded that, despite the efforts and initiatives, the special testimony, brought by Law no. 13.431 / 2007, does not find an environment for effective and immediate application in the state of Tocantins, even in the short or medium term, which represents a violation of the right of the child to be heard through the special testimony.
10
Siqueira, Camilla Karla Barbosa. "A liberdade sexual da mulher na prática judicial: análise da aplicação de esteriótipos de gênero em processos de estupro". reponame:Repositório Institucional da UFC, 2016. http://www.repositorio.ufc.br/handle/riufc/23433.
Abstract (sommario):
SIQUEIRA, Camilla Karla Barbosa. A liberdade sexual da mulher na prática judicial: análise da aplicação de esteriótipos de gênero em processos de estupro. 2016. 142 f. Dissertação (Mestrado em Direito) - Faculdade de Direito, Universidade Federal do Ceará, Programa de Pós-Graduação em Direito, Fortaleza, 2016.Submitted by Vera Martins (vera.lumar@hotmail.com) on 2017-05-22T18:07:14Z No. of bitstreams: 1 2016_dis_ckbsiqueira.pdf: 1534492 bytes, checksum: 149b5fb08a48a318fb77ab42d4c1d8b1 (MD5)
Approved for entry into archive by Camila Freitas (camila.morais@ufc.br) on 2017-06-20T11:22:04Z (GMT) No. of bitstreams: 1 2016_dis_ckbsiqueira.pdf: 1534492 bytes, checksum: 149b5fb08a48a318fb77ab42d4c1d8b1 (MD5)
Made available in DSpace on 2017-06-20T11:22:04Z (GMT). No. of bitstreams: 1 2016_dis_ckbsiqueira.pdf: 1534492 bytes, checksum: 149b5fb08a48a318fb77ab42d4c1d8b1 (MD5) Previous issue date: 2016
For centuries, women have been treated as inferior people, suffering because of this all kindsof violence. Despite the evolution brought by the era of recognition of rights, in both national and international level, including rights specifically designed for women, it is noticeable that they are still considered as inferior human beings in some level.This scenario causes the persistence ofgender-based violence, including sexual violence, which is adifficult problem to overcome nowadays. In the scenario described here, the study aims to investigate the persistent use of gender stereotypes in criminal rape cases. The Criminal Justice System is considered the legitimate arena for prevention of crime, and its effectiveness with regard to gender-based crimes needs to be investigated. In order to achieve this goal, the study first analyzed the concept of gender as a female emancipation tool and explored stereotypes related to gender. The next step consisted in researches around gender-based violence and its sexual form, including the investigation of rape as a crime in Brazilian law. It is argued that the Criminal Justice System, by incorporating gender stereotypes in their judgments, replicates the violence suffered by women, emerging as an institution incapable of protecting their sexual freedom, given that the gender violence is not slowing down. For the study, we used literature analysis, involving the reading of academic books and articles on the topics discussed, and documental analysis, mostly related to the examination of national and international normative documents, as well as criminal lawsuits that investigate crimes of rape committed against women, all of them originated .The approach is qualitative, and Critical Discourse Analysis isusedas a methodological tool for the lawsuit sanalysis, thus setting up a qualitative methodology.
Durante séculos, a mulher tem sido vista como ser inferior, sofrendo em razão disso violências de várias naturezas. Apesar dos avanços trazidos pela era do reconhecimento de direitos em âmbito nacional e internacional, inclusive direitos específicos das mulheres, percebe-se que a concepção inferiorizada do feminino ainda persiste no imaginário coletivo, tornando a violência de gênero, inclusive a de teor sexual, um problema difícil de contornar. Em virtude do cenário esboçado, o trabalho tem como objetivo principal investigara persistência do uso de estereótipos de gênero em processos penais de estupro.O Sistema de Justiça Criminal se põe como instância privilegiada de prevenção e reparação de crimes, e sua eficácia no que diz respeito aos crimes de gênero precisa ser averiguada. Para isso, foi analisado o conceito de gênero enquanto ferramenta de emancipação feminina, bem como o estudo de estereótipos relacionados ao gênero e da violência sexual como violência de gênero. Sustenta-se que o Sistema de Justiça Criminal, ao incorporar estereótipos de gênero em seus julgamentos, replica a violência sofrida pelas mulheres, surgindo como meio inábil para a proteção de sua liberdade sexual. Para a realização do estudo, utilizou-se análise bibliográfica, com análise de livros e artigos acadêmicos sobre os assuntos abordados, e documental, com o exame de normas nacionais e internacionais, bem como de processos judiciais em que se apurou o cometimento de crime de estupro contra mulheres, retirados do Judiciário cearense; a pesquisa é, portanto,restrita às práticas da Justiça do Ceará. A abordagem é predominantemente qualitativa. A Análise de Discurso Crítica foi usada como ferramenta metodológica para a análise processual. .
Libri sul tema "Estuary process":
1
Gentileschi, Artemisia, e Mª de las Nieves Muñiz. Cartas precedidas de las actas del proceso por estupro. Cátedra, 2016.
2
Estudos em Neurologia. Editora Acadêmica Periodicojs, 2021. http://dx.doi.org/10.51249/easn01.2021.12.
Abstract (sommario):
Estudar neurologia é cansativo, às vezes, não muito empolgante e monótono, porém saber utilizar as estratégias adequadas, fazem esse caminho se tornar um verdadeiro conto de fadas. Muitos estudantes sempre relatam se perder na Neuroanatomia, por não conseguirem entender a aplicabilidade clínica do processo de aprendizado do exame neurológico, no entanto, gostaria de informar aos alunos, que nosso crescimento na neurologia não é linear. O segredo está na constância do processo.
3
Borges, Robson Machado. Estudar com professores: a formação continuada e o processo de mudança de concepção de ensino na educação física escolar. Editora CRV, 2019. http://dx.doi.org/10.24824/978854443206.8.
4
Lenilde de Araújo, Raimundo, e Lineu Aparecido Paz e Silva. Ensino de Geografia e Avaliação. Editora SertãoCult, 2020. http://dx.doi.org/10.35260/87429175-2020.
Abstract (sommario):
O leitor tem em suas mãos um ótimo material de estudo sobre avaliação escolar, que contribui para ampliar os conhecimentos teóricos a respeito do ensino de Geografia e as práticas avaliativas, seus desafios, seus resultados, suas potencialidades. Sua leitura certamente contribui para compreendermos a complexidade do processo de ensino e aprendizagem e para reforçar convicções sobre a relevância de uma escola de boa qualidade, que incentiva os alunos a estudar, os acolhe e os desafia a ampliar seu conhecimento sobre o mundo e sobre si próprios, o que é fundamental para o desenvolvimento da cidadania ativa, tão importante no contexto brasileiro atual.
5
Davetian, Benet. CIVILITY - A CULTURAL HISTORY (new title, see Amazon.com) Reconsidering the civilizing process: A estudy of American, British and French Courtesy Practices (1200-2002). 2002.
6
BULATY, A., e F. W. M. MARTINEZ, a cura di. O estágio na formação profissional. Eulim, 2020. http://dx.doi.org/10.35417/978-65-87698-07-6.
Abstract (sommario):
A vida é feita de etapas, tanto no âmbito pessoal como profissional, e no campo do trabalho o estágio é a fase basilar da formação. Sabemos que as universidades são repertórios de conhecimentos e saberes, mas a absorção dos mesmos em partes se dá sentado, estudando nas salas de aulas, sendo importante estudar no meio externo, nos espaços de atuação dos futuros profissionais, que se absorve conhecimentos provenientes do cotidiano da profissão, com os profissionais que ali estão. O estágio é de grande relevância par a formação de profissionais atuantes na sociedade, vai além de simples cumprimento de carga horária. O mesmo configura- se como campo de conhecimento, assegurando-lhe o espaço de processo formativo, que supera a visão tradicional de redução a atividade prática instrumental.
7
Mai, Mukhtar. Deshonrada/ In the Name of Honor: A Memoir (Actualidad). Punto de Lectura, 2007.
8
Mai, Mukhtar. Deshonrada / In the Name of Honor: A Memoir. Aguilar, 2006.
9
Pinto-Coelho, Zara, Ana Maria Brandão e Silvana Mota-Ribeiro, a cura di. Do poder político e discursivo das imagens de protestos feministas. Universidade do Minho. Centro de Estudos de Comunicação e Sociedade (CECS), 2021. http://dx.doi.org/10.21814/1822.72019.
Abstract (sommario):
Esta obra reúne um conjunto de estudos de casos que versam sobre as imagens visuais das ações de protesto e de resistência das mulheres e das feministas, em contextos socioculturais, momentos históricos e geografias distintas. Provenientes de diferentes campos disciplinares (Artes Visuais e Literatura, Comunicação e Cultura, Estética e Educação), os autores destacam que os diálogos encetados pelas imagens com discursos, imaginários, memórias coletivas ou regimes de visualidade são fundamentais para a compreensão dos diferentes sentidos que a imagética de protesto adquire em contextos particulares e para a significância que esta tem para os coletivos de protesto. Ao salientar como as imagens visuais operam para mudar quem protesta e, de uma forma geral, para fazer mover os movimentos, este volume contribui para enriquecer o conhecimento sobre uma área ainda pouco explorada na Sociologia e na Comunicação, geralmente mais interessadas em estudar a ressonância dos protestos na esfera mediática e nas redes sociais. A investigação nestas áreas tende a estar ainda dominada pelo interesse nos processos de enquadramento (framing), mesmo quando o material explorado é de natureza visual ou multimodal. Simultaneamente, ao incidir sobre formas de expressão das culturas visuais feministas pouco estudadas ou marginais, trazendo para a discussão conhecimento produzido pela Antropologia da Imagem, Cultura Visual, História de Arte e Literatura, lança pistas que visam contribuir para descentrar a análise e explorar a produção cultural e artística lá onde ela parece não estar.
10
MALAQUIAS, Cristiane, Claudia MALAQUIAS, Maria AMORIM, Andreia MORAES, Leysdiane RODRIGUES, Adriana LUZ, Daniele BOINI et al. A história na construção da identidade no contexto escolar. Editorial Casa, 2021. http://dx.doi.org/10.55371/978-65-89999-19-5.
Abstract (sommario):
Apresentamos a Coleção Ensino da História, constituída de um volume, que expressa o ensino de História no âmbito educacional e social. Nota-se que o conhecimento histórico deve ser preservado nos diversos contextos sociais, principalmente na escola, onde muitas vezes o ensino de História não é interpretado corretamente pelos professores. A sistematização deste estudo, focando o ensino de História no contexto da educação institucionalizada, objetiva refletir sobre as principais características e tendências do ensino nessa área do conhecimento, considerando que a atualidade está fortemente marcada e influenciada por transformações estruturais. O estudo histórico, efetivado no âmbito da educação formal escolar, sempre implica uma seleção de conteúdos e de metodologias. Os espaços e as possibilidades de uma escolha fundamentada, referente ao que estudar, e a problematização de objetivos e finalidades do estudo desenvolvido se apresentam um tanto reduzidos. Praticamente tudo está pronto, isto é, selecionado, organizado sequencialmente e, também, estão definidas as propostas de atividades a serem desenvolvidas. Os conteúdos não aparecem na sua totalidade, por vezes abordados superficialmente e resumidamente. A preocupação predominante não é a de refletir sobre a história construída por seres humanos, na dimensão de processo, mas localizar, interpretar e descrever acontecimentos, fatos, períodos. É preciso, sim, torná-lo crítico-social, dinâmico e transformador, contribuindo para a formação de alunos e professores atuantes, comprometidos e coerentes com um projeto de sociedade, cuja centralidade são os humanos, historicamente situados. Desejamos, também, que você possa ver que a leitura é deliciosa. Escrita com as mãos, coisas ditas com o coração e, por vezes, em apenas uma frase, identificamo-nos tanto que ela fica marcada na alma.
Capitoli di libri sul tema "Estuary process":
1
Nakata, Kisaburo. "A simulation of the process of sedimentation of suspended solids in the Yoshii River estuary". In Sediment/Water Interactions, 431–38. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2376-8_40.
2
Leng, Qing, Ming Zhang, Gensheng Zhao, Senhao Mao e Ang Jiang. "Simulation and Hazard Map of Flooding Caused by the Break of a Concrete Gravitational Dam". In Lecture Notes in Civil Engineering, 1248–60. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_109.
Abstract (sommario):
AbstractThe simulation of Concrete Gravitational Dam burst floods is an important research content in the field of disaster prevention and mitigation in water conservancy projects. Due to the extreme rainfall, earthquake, structure failure and etc., the concrete gravitational dam usually breaks in a short time period. The dam break flood will give an extreme risk to the downstream communities. Taking the flood simulation of the Kaliwa Dam in the Philippines as an example, based on the downstream channel of the dam body and the measured terrain on both sides, a numerical simulation model of one-dimensional and two-dimensional coupled flood evolution is constructed, and the numerical simulation of the flood evolution process of the dam collapse is carried out, counts the inundation range, water depth, flow velocity, flood arrival time and other disaster causing factors in the downstream inundation area, and draws the flood hazard map of both banks downstream. The simulation results show that the KALIWA burst accident occurred, the total inundation area downstream is over 38 km2 in the downstream of the Kaliwa Dam. The dam break flood peak takes 1.5 h to reach the downstream estuary, which is the shortest time. The General Nakar City and Infanta City are inundated completely with the depth of 1.0 m to 2.0 m. The terrain near the upper reaches of the lower estuary is open and flat, the downstream area will be affected seriously by the flood. It is proposed to build a flood warning system to give the people downstream of Kaliwa Dam. The results of the research will provide a scientific basis for dam-break flood risk analysis, disaster assessment.
3
Mesnage, V., S. Bonneville, B. Laignel, D. Lefebvre, J. P. Dupont e D. Mikes. "Filling of a wetland (Seine estuary, France): natural eutrophication or anthropogenic process? A sedimentological and geochemical study of wetland organic sediments". In Nutrients and Eutrophication in Estuaries and Coastal Waters, 423–35. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-2464-7_32.
4
Ciampa, Francesca. "A Digital Information Model for Coastal Maintenance and Waterfront Recovery". In The Urban Book Series, 145–55. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-29515-7_14.
Abstract (sommario):
AbstractIn the context of the global climate crisis and the resulting catastrophic flooding phenomena, the contribution looks at an innovative digital model for the coastal recovery, attentive to the protection of waterfronts and their stakeholders. By intervening in the relationship between transformation and conservation of built environment, it is necessary to establish governance support tools capable of foreseeing emergency scenarios to protect the population. The research looks at the port areas of coastal cities as a contemporary and collective public space in which to test the collaborative digital model proposed for waterfronts recovery and maintenance. The need-based methodological process used the human life protection, exposed to flooding danger, as the input of a design process. Through a survey and modeling phase, the waterfront breaks down into environmental and technological systems, specifying the extent of the failure. The waterfront digitization allows providing the governance with a sensor alert tool that gives the monitoring of the behavior and the state of the waterfront elements’ degradation. This information is simplified and given back to the users who both made responsible for the maintenance culture of the places they use and alerted to the possible danger they are exposed. The case is Atrani, where an internal flooding, caused by the estuary overflowing, degenerated in the entire coastal system up to the sea. The results provide a digital model capable of exploring and optimizing the coastal built environment to increase the governance capacity and the waterfront performance.
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Kuo, A. Y., R. J. Byrne, J. M. Brubaker e J. H. Posenau. "Vertical Transport Across an Estuary Front". In Physical Processes in Estuaries, 93–109. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73691-9_6.
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Dai, Zhijun. "Changjiang Estuary Modern Morphodynamic Processes". In Changjiang Riverine and Estuarine Hydro-morphodynamic Processes, 239–324. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3771-1_6.
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Dai, Zhijun. "Tidal Flat Morphodynamics of the Changjiang Estuary". In Changjiang Riverine and Estuarine Hydro-morphodynamic Processes, 171–238. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3771-1_5.
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Riethmüller, R., H. U. Fanger, I. Grabemann, H. L. Krasemann, K. Ohm, J. Böning, L. J. R. Neumann, G. Lang, M. Markofsky e R. Schubert. "Hydrographic Measurements in the Turbidity Zone of the Weser Estuary". In Physical Processes in Estuaries, 332–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73691-9_18.
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Hunt, Christopher E., e Sylvia Behrens Yamada. "Biotic resistance experienced by an invasive crustacean in a temperate estuary". In Marine Bioinvasions: Patterns, Processes and Perspectives, 33–43. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0169-4_4.
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Middelburg, Jack J., Gerard Klaver, Joop Nieuwenhuize e Tom Vlug. "Carbon and nitrogen cycling in intertidal sediments near Doel, Scheldt Estuary". In Major Biological Processes in European Tidal Estuaries, 57–69. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0117-9_6.
Atti di convegni sul tema "Estuary process":
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Whitehouse, Richard J. S. "Predicting Estuary Morphology and Process: An Assessment of Tools Used to Support Estuary Management". In Seventh International Conference on Estuarine and Coastal Modeling. Reston, VA: American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40628(268)22.
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Chu, A., Z. B. Wang e H. J. de Vriend. "29. PROCESS-BASED MODELING FOR THE YANGTZE ESTUARY". In Coastal Dynamics 2009 - Impacts of Human Activities on Dynamic Coastal Processes. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814282475_0032.
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Villaret, C., N. Huybrechts e A. G. Davies. "A large scale morphodynamic process-based model of the Gironde estuary". In NCK-days 2012 : Crossing borders in coastal research. Enschede, the Netherlands: University of Twente, Department of Water Engineering & Management, 2012. http://dx.doi.org/10.3990/2.172.
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Davies, A. G., e J. M. Brown. "Field Measurement and Modelling of Scour Pit Dynamics in a Sandy Estuary". In Sixth International Symposium on Coastal Engineering and Science of Coastal Sediment Process. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40926(239)125.
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Zhang, Su-Xiang, Xi Li e Xiang Lin. "Numerical simulation of reaction-diffusion process about sewage discharge in Yangtze Estuary". In 2011 Seventh International Conference on Natural Computation (ICNC). IEEE, 2011. http://dx.doi.org/10.1109/icnc.2011.6022599.
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Yang, Xiu-juan, Yonggang Jia e Hongxian Shan. "The Effect of Hydrodynamic Action on Sediment Consolidation Process in the Yellow River Estuary". In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79207.
Abstract (sommario):
By in situ tests, the impaction of the marine hydrodynamics, such as wave and tide, on the rapidly deposited sediments consolidation process was studied. In the tide flat of Diaokou delta-lobe, one 2m×1m×1m test pit was excavated. The fluid sediments imitating the rapidly deposited seabed silts were made in-situ, and an iron plate covered part of the test pit to cut off the effect of the marine hydrodynamics. By field-testing methods, like static cone penetration test, the variation of strength is measured at real time, and the marine hydrodynamics’ impaction on the consolidation process of the sediments in the Yellow River Estuary was studied. It is shown that the self-consolidated sediments’ strength linear increased with the depth. In the consolidation process, in the initial, marine hydrodynamics play a decisive role, about three times as much as self-consolidated in raising the strength of the sea-bed soils, and with the extension of the depth the role of the hydrodynamics reduced. With the continuation of the consolidation process, the trend of the surface sediments’ increased-strength gradually slowed under the water dynamics, while the sediments below 30cm was in opposite ways. As a result, the rapidly deposited silts present a nonuniform consolidation state, and the crust gradually formed. The results have reference in studying the role of the hydrodynamics in the soil consolidation process.
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Liu, Haijiang, Yoshimitsu Tajima e Shinji Sato. "FIELD STUDY ON THE NEARSHORE SEDIMENT PROCESS AROUND THE TENRYU ESTUARY USING IMAGE ANALYSIS". In Proceedings of the 31st International Conference. World Scientific Publishing Company, 2009. http://dx.doi.org/10.1142/9789814277426_0170.
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Takagi, Toshimitsu, Go Asano, Takushi Inukai e Masaya Fukuhama. "Projection of Topographic Change of an Estuary Terrace by Horizontal 2-D Simulation Model, Considering Grain Size". In Sixth International Symposium on Coastal Engineering and Science of Coastal Sediment Process. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40926(239)126.
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Curoy, J., U. Dornbusch, C. A. Moses, D. A. Robinson e R. B. G. Williams. "Cross-shore and Longshore Transport of Tracer Pebbles on a Macrotidal Mixed Sediment Beach, Somme Estuary, France". In Sixth International Symposium on Coastal Engineering and Science of Coastal Sediment Process. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40926(239)40.
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Xiong, Chuanfang, Hongxian Shan, Shaotong Zhang, Chaoqi Zhu e Yonggang Jia. "Study on the sediment consolidation process under different salinity fields in the Yellow River Estuary". In 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/iceesd-17.2017.13.
Rapporti di organizzazioni sul tema "Estuary process":
1
Kastaschuk, R. A., J. L. Luternauer e M. A. Church. Sedimentary processes in the estuary. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/210036.
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Kostaschuk, R. A., e J. L. Luternauer. Sedimentary processes and their environmental significance: lower main channel, Fraser River estuary. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2004. http://dx.doi.org/10.4095/215799.
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Kostaschuk, R. A., e J. L. Luternauer. Large - Scale Sedimentary Processes in a Trained, High - Energy, Sand - Rich Estuary: Fraser River Delta, British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/122492.
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Smith, S. Jarrell, David W. Perkey e Kelsey A. Fall. Cohesive Sediment Field Study : James River, Virginia. U.S. Army Engineer Research and Development Center, agosto 2021. http://dx.doi.org/10.21079/11681/41640.
Abstract (sommario):
Estuaries trap much of the fine sediment delivered to them by rivers. This phenomenon presents challenges to the US Army Corps of Engineers (USACE) navigation mission, which maintains navigable waterways for waterborne commerce through estuarine regions. The USACE Regional Sediment Management Program and the USACE Norfolk District are conducting a regional sediment transport modeling study to identify cost-effective sediment management schemes in the James River, a tributary estuary of Chesapeake Bay. A key element of the sediment transport modeling study is the definition of cohesive sediment transport processes, such as erosion and settling velocity. This report describes field-based measurements of cohesive sediment erosion and settling velocity conducted in November 2017. The team conducted erosion testing on 15 cores collected throughout the tidal system. Additionally, two anchor stations were occupied to measure tidal variations in vertical distributions of suspended sediment concentration, particle size, and settling velocity. Recommended cohesive sediment transport parameters were developed from the field measurements.