Academic literature on the topic 'Red Sea bed analysis'
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Journal articles on the topic "Red Sea bed analysis"
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Morton, Andrew, and Paula McGill. "Correlation of Hydrocarbon Reservoir Sandstones Using Heavy Mineral Provenance Signatures: Examples from the North Sea and Adjacent Areas." Minerals 8, no. 12 (December 3, 2018): 564. http://dx.doi.org/10.3390/min8120564.
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Correlation of hydrocarbon reservoir sandstones is one of the most important economic applications for heavy mineral analysis. In this paper, we review the fundamental principles required for establishing correlation frameworks using heavy mineral data, and illustrate the applications of a wide variety of heavy mineral techniques using a number of case studies from hydrocarbon reservoirs in the North Sea and adjacent areas. The examples cover Triassic red-bed successions in the central North Sea and west of Shetland, which have been subdivided and correlated using provenance-sensitive ratio data and mineral morphologies; Middle Jurassic paralic sandstones in the northern North Sea, correlated using garnet geochemistry; Upper Jurassic deep water sandstones in the northern North Sea, discriminated using rutile geochemistry and detrital zircon age data; and the “real-time” application of the technique at well site in Devonian-Carboniferous fluvio-lacustrine sandstones of the Clair Field, west of Shetland.
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Hadaidi, Ghaida, Maren Ziegler, Amanda Shore-Maggio, Thor Jensen, Greta Aeby, and Christian R. Voolstra. "Ecological and molecular characterization of a coral black band disease outbreak in the Red Sea during a bleaching event." PeerJ 6 (July 12, 2018): e5169. http://dx.doi.org/10.7717/peerj.5169.
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Black Band Disease (BBD) is a widely distributed and destructive coral disease that has been studied on a global scale, but baseline data on coral diseases is missing from many areas of the Arabian Seas. Here we report on the broad distribution and prevalence of BBD in the Red Sea in addition to documenting a bleaching-associated outbreak of BBD with subsequent microbial community characterization of BBD microbial mats at this reef site in the southern central Red Sea. Coral colonies with BBD were found at roughly a third of our 22 survey sites with an overall prevalence of 0.04%. Nine coral genera were infected including Astreopora, Coelastrea, Dipsastraea, Gardineroseris, Goniopora, Montipora, Pavona, Platygyra, and Psammocora. For a southern central Red Sea outbreak site, overall prevalence was 40 times higher than baseline (1.7%). Differential susceptibility to BBD was apparent among coral genera with Dipsastraea (prevalence 6.1%), having more diseased colonies than was expected based on its abundance within transects. Analysis of the microbial community associated with the BBD mat showed that it is dominated by a consortium of cyanobacteria and heterotrophic bacteria. We detected the three main indicators for BBD (filamentous cyanobacteria, sulfate-reducing bacteria (SRB), and sulfide-oxidizing bacteria (SOB)), with high similarity to BBD-associated microbes found worldwide. More specifically, the microbial consortium of BBD-diseased coral colonies in the Red Sea consisted of Oscillatoria sp. (cyanobacteria), Desulfovibrio sp. (SRB), and Arcobacter sp. (SOB). Given the similarity of associated bacteria worldwide, our data suggest that BBD represents a global coral disease with predictable etiology. Furthermore, we provide a baseline assessment of BBD disease prevalence in the Red Sea, a still understudied region.
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Liu, Zhen, Xinfu He, Jin Fan, and Cuiying Zhou. "Study on the Softening Mechanism and Control of Red-Bed Soft Rock under Seawater Conditions." Journal of Marine Science and Engineering 7, no. 7 (July 21, 2019): 235. http://dx.doi.org/10.3390/jmse7070235.
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Red-bed soft rock easily softens and disintegrates when it comes into contact with water, which is the main factor restricting the application of soft rock as an engineering filler. Therefore, research on the influence of seawater on soft rock softening has great significance for the application of soft rock in marine engineering. To examine the softening mechanism of soft rock under seawater conditions, two kinds of soft rock softening experiments, as well as ion inhibition tests of soft rock softening, were performed under seawater and pure water conditions, and the results were compared. The variation in the soft rock composition, the deformation and failure characteristics of soft rock under the influence of sea water, and the variation in main cations in the softening process of soft rock are examined successively; the influences of different ions on soft rock softening are further analysed. Based on the analyses, the softening mechanism and control method of soft rock under sea water conditions are expounded. The study showed that soft rock softening was inhibited by seawater, which decreased the softening degree of soft rock. The main cations in seawater had an inhibitory effect on soft rock softening, and the order of inhibition was Ca2+ > Mg2+ > Na+. According to the inhibitory effect of ions on soft rock softening, we propose that seawater or calcium salt should be added to reduce the softening of soft rock in soft rock engineering and improve the mechanical strength of soft rock; in addition, soft rock can be considered a raw material in marine engineering. The experimental results have great significance for studies of the disintegration mechanism and inhibitory rules of soft rock under the influence of seawater and provide a theoretical basis for the application of soft rock in marine engineering, such as in artificial reef engineering and coastal dike engineering.
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Al-Garni, Mansour A., and Hamdy I. E. Hassanein. "Study of Ground water Groundwater Potentiality and Sea Water Intrusion Along along the Coastal Plain, Wadi Thuwal, KSA- A Case Study Based on DC Resistivity." Sultan Qaboos University Journal for Science [SQUJS] 15 (December 1, 2010): 31. http://dx.doi.org/10.24200/squjs.vol15iss0pp31-40.
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The present study mainly aims to outline zones that have groundwater potentiality with good quality and those which are affected by sea water intrusion. The electrical resistivity data were acquired over an area of about 170 km2 of a coastal plain, Wadi Thuwal, which is bounded by the Red Sea in the west and the volcanic hills in the east. In such an area, resistivity measurements, using n-layering model, reveal generally reveal a wide range of resistivity values which do not reflect the reality. Hence, the statistical analysis has to be involved to overcome this problem and to make the final interpretation reliable. In our case, the n-layer models were modified to another statistical geoelectric models (SLM), consisting of a number of layers equivalent to the stratigraphic layering beneath each VES site. The modified models were used to outline the depth to the bed rock, groundwater accumulation zones and water table as well as to define the effect of sea water intrusion through the study area. Check alignment above
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Iatrou, M., G. Papatheodorou, M. Geraga, and G. Ferentinos. "THE STUDY OF HEAVY METAL CONCENTRATIONS IN THE RED MUD DEPOSITS AT THE GULF OF CORINTH, USING MULTIVARIATE TECHNIQUES." Bulletin of the Geological Society of Greece 43, no. 2 (January 23, 2017): 1018. http://dx.doi.org/10.12681/bgsg.11267.
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Detailed geochemical analyses were performed on the recent sedimentary cover (0 – 15 cm) of the northern flank of the Gulf of Corinth, in western Greece. Man-made metalliferous deposits have been formed on the sea-bed of the Gulf due to the discharge of red mud tailings on the shelf of the Antikyra Bay. The metalliferous deposits have been incorporated in the sedimentation regime of the area. A large grid of sediment samples collected from surface and subsurface red mud deposits and the surrounding natural sediments were analysed for Ag, Al, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Si, Ti, V, and Zn concentrations, using Atomic Absorption Spectrometry (AAS). Also, Total Organic Carbon and Calcium Carbonateswere determined. Additionally, correlation between heavy metal concentrations and grain-size data was examined. High heavy metal content values were measured on the floor of the Corinth basin, but the highest heavy metal concentrations occur near the discharge site. In subsurface sediments the heavy metal content (Fe, Ni, Cr, Pb, V, Ag, Co, Al, Cd, Ti, Hg) is significantly higher in the red and reddish mud sediments than in the natural mud sediments. The heavy metal content values decrease from top to base within red-mud deposits. Multivariate statistical methods (Cluster and Facto analysis) were applied on the heavy metal composition and grain-size dataset in order to investigate the inter-element relationships as well as the relationships between the geochemical and sedimentological data.
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Then-Obłuska, Joanna. "Cross-cultural bead encounters at the Red Sea port site of Berenike, Egypt. preliminary assessment (seasons 2009–2012)." Polish Archaeology in the Mediterranean XXIV, no. 1 (February 28, 2016): 735–77. http://dx.doi.org/10.5604/01.3001.0010.0126.
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A macroscopic analysis of the bead and pendant assemblage from Berenike (excavated in seasons 2009–2012) provides not only a preliminary bead typology and chronology, but contributes to the study of the multicultural character of the Red Sea port of Berenike from the Ptolemaic through the early Byzantine period. The presence of diverse marine and terrestrial organics, semiprecious stones and manmade materials used in crafting beads indicates a substantial supply from coastal and inland desert dwellers, as well as from overland and overseas traders. Part of the products found at Berenike must have been designated for permanent and temporary residents of the town. Other objects originated from, or were destined for African, Arabian or Asian markets.
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Simpson, Claire E., Christopher D. Arp, Yongwei Sheng, Mark L. Carroll, Benjamin M. Jones, and Laurence C. Smith. "Landsat-derived bathymetry of lakes on the Arctic Coastal Plain of northern Alaska." Earth System Science Data 13, no. 3 (March 19, 2021): 1135–50. http://dx.doi.org/10.5194/essd-13-1135-2021.
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Abstract. The Pleistocene sand sea on the Arctic Coastal Plain (ACP) of northern Alaska is underlain by an ancient sand dune field, a geological feature that affects regional lake characteristics. Many of these lakes, which cover approximately 20 % of the Pleistocene sand sea, are relatively deep (up to 25 m). In addition to the natural importance of ACP sand sea lakes for water storage, energy balance, and ecological habitat, the need for winter water for industrial development and exploration activities makes lakes in this region a valuable resource. However, ACP sand sea lakes have received little prior study. Here, we collect in situ bathymetric data to test 12 model variants for predicting sand sea lake depth based on analysis of Landsat-8 Operational Land Imager (OLI) images. Lake depth gradients were measured at 17 lakes in midsummer 2017 using a Humminbird 798ci HD SI Combo automatic sonar system. The field-measured data points were compared to red–green–blue (RGB) bands of a Landsat-8 OLI image acquired on 8 August 2016 to select and calibrate the most accurate spectral-depth model for each study lake and map bathymetry. Exponential functions using a simple band ratio (with bands selected based on lake turbidity and bed substrate) yielded the most successful model variants. For each lake, the most accurate model explained 81.8 % of the variation in depth, on average. Modeled lake bathymetries were integrated with remotely sensed lake surface area to quantify lake water storage volumes, which ranged from 1.056×10-3 to 57.416×10-3 km3. Due to variations in depth maxima, substrate, and turbidity between lakes, a regional model is currently infeasible, rendering necessary the acquisition of additional in situ data with which to develop a regional model solution. Estimating lake water volumes using remote sensing will facilitate better management of expanding development activities and serve as a baseline by which to evaluate future responses to ongoing and rapid climate change in the Arctic. All sonar depth data and modeled lake bathymetry rasters can be freely accessed at https://doi.org/10.18739/A2SN01440 (Simpson and Arp, 2018) and https://doi.org/10.18739/A2HT2GC6G (Simpson, 2019), respectively.
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El-Ayyat, Abdalla M., and Ahmed S. Kassab. "Biostratinomy and facies analysis of the upper Cretaceous oyster storm shell beds of the Duwi formation, Qusseir District, Red Sea Region, Egypt." Journal of African Earth Sciences 39, no. 3-5 (June 2004): 421–28. http://dx.doi.org/10.1016/j.jafrearsci.2004.07.024.
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Tewari, Sanjay, John Gibson, Stephan Menzel, Anke Hannemann, Swee Lay Thein, Bukola T. Gbotosho, Halima W. M. Al Balushi, and David C. Rees. "Red Cell Transport Abnormalities As Predictors of the Development of Renal Disease in Children with Sickle Cell Disease." Blood 128, no. 22 (December 2, 2016): 1317. http://dx.doi.org/10.1182/blood.v128.22.1317.1317.
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Abstract Background: Patients with sickle cell disease (SCD) have the abnormal haemoglobin (Hb) HbS in their red blood cells (RBCs). The complications of SCD may be extensive but are markedly variable between patients. Renal damage (sometimes called sickle cell nephropathy, SCN) is a common finding in about a third of children with SCD, a significant number of whom will proceed to renal failure. As yet, it is not possible to predict which children will develop SCN and who would therefore benefit from earlier and aggressive management. Various biomarkers have been investigated but none have proved efficacious. Changes in RBC membrane permeability are closely linked with polymerisation of HbS and, as such, may represent an important early event in pathogenesis. We postulated that certain RBC characteristics (sickling, K+ transport, PS exposure), which may be inherited independently of the HbS mutation, may correlate with renal pathology, but more importantly, may be identifiable in advance of damage, thereby providing prognostic markers to inform patient management. Participants and Methods: Children (>4 years old) with sickle cell anaemia (SCA) were recruited from the paediatric haematology clinic at King's College Hospital in South London, UK. Patients who had received blood transfusion in the preceding four months or who were on medications known to directly alter RBC cation transport (e.g. dipyridamole and Ca2+ channel blockers) were excluded. Patients on hydroxyurea were included. All patients were in steady state, with no acute symptoms requiring treatment for at least seven days. Clinical and laboratory parameters were collected prospectively at routine clinical attendance. Details of enuresis were collected using specifically developed proforma and patients were divided into two groups: those who stopped wetting their bed before the age of five years and those who were still enuretic after five years of age. RBC permeability was assessed using 86Rb+ as a congener for K+ to measure the activity of main cation transport systems involved in RBC dehydration. The activity of RBC transport pathways and percentage of sickling was measured at 100mmHg, 35mmHg, 15mmHg and 0mmHg. Statistical analysis was conducted using IBM-SPSS, New York. Results: 112 patients of HbSS genotype (SCA) consented to take part in the study. Their clinical profile is summarised Table 1. The percentage of children with enuresis, hypertension and significant albuminuria is shown in Table 2. There was significant correlation between activity of Gardos channel at O2 tensions of 35mmHg, 15mmHg and 0mmHg and enuresis after the age of five years. Psickle activity also showed significant correlation but only in fully deoxygenated RBCs (O2 of 0mmHg.) Table 3. Conclusion In conclusion, the present findings emphasise the significance of a thorough appreciation of RBC permeability to the pathogenesis of SCD. Whilst preliminary, these findings are exciting because they show that the activity of a particular transport pathways, abnormally elevated in SCA patients, are associated with enuresis. These findings suggest that the early identification of increased Gardos and Psickle activity may identify children who would benefit from early treatment for nocturnal enuresis. Disclosures No relevant conflicts of interest to declare.
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Γαρέζος, A., and Κ. Αλμπανάκης. "Μορφολογικά και ιζηματολογικά χαρακτηριστικά του ενεργού Δέλτα του ποταμού Νέστου, μετά τη κατασκευή των φραγμάτων." Bulletin of the Geological Society of Greece 44 (February 1, 2017): 63. http://dx.doi.org/10.12681/bgsg.11436.
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The purpose of this paper is the geomorphological and sedimentological study of modern Nestos River Delta, to examine the effect of the dams to the sedimentological regime of the coastal zone. Nestos Delta suffered a series of anthropogenic influences; the most significant was the channeliza-tion of the river bed, which prevents avulsion and enforces the river to discharge to the sea with one main channel. A DGPS with accuracy better than 1m (GMS-2- Topcon), was used for mapping the coastline, along with sampling the coastal sediments. Sedimentological analysis revealed that the mean size of the sandy material of the coastline reduces with increasing the eastward distance from the river mouth. The western coastline revealed a more complex situation, since it had inherited characteristics from older, abandoned river mouths, bars, spits etc, existed prior to anthropogenic influence. Comparison between the DGPS survey and the 1970 topographic maps revealed some areas with erosional and some with depositional tendencies. A clear erosional tendency was not rec-orded. Furthermore comparison, between 2000 GPS survey, and the present 2009 DGPS survey, recorded a stability of the coastline within the resolution and the accuracy of the instruments. A pos-sible explanation, is the dramatic reduction of the active area of the delta, due to anthropogenic influ-ence, where at its natural stage, was dispersing sediments with avulsion and multiple river channels in an area of 500 km2, but now the active area, where deposition is possible, is only 45.84 km2.
Dissertations / Theses on the topic "Red Sea bed analysis"
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Southren, T. C. "A geophysical study of the northern Red Sea." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373063.
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Farris, Matthew A. "Sedimentological controls on palynomorph preservation, Triassic red-bed facies, UK Central North Sea and West Midlands." Thesis, Keele University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301192.
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Development of Middle Triassic red-bed plays is commonly hampered by a lack of understanding of the stratigraphic relationships between reservoir sandstones. This inadequacy reflects poor palynological recoveries and a general deficiency in understanding the controls on palynological preservation. The sedimentology and palynology of Triassic red-bed facies, from the UK North Sea and onshore analogues, are studied to determine the sedimentary controls on palynological preservation and to investigate whether palynology is useful in these facies, where other stratigraphic techniques do not always provide unique solutions. The Skagerrak Formation (Quadrants 22, 29 and 30) typically comprises ephemeral channel and sheet-flood deposits in the north, but includes sediments deposited in perennially wet, alluvial plain and lacustrine settings in the south. Further north (Quadrant 210), the Cormorant Formation comprises dry alluvial deposits. Onshore, the Bromsgrove Sandstone Formation is characterised by ephemeral channel deposits that pass progressively upwards into tidally-influenced, fluvial and estuarine deposits; these are partly comparable with sediments in the Tarporley Siltstone Formation. Palynological analysis reveals that, in the absence of palynomorphs, palynodebris and absolute organic concentration can distinguish between preservational regimes, and thus environment. Palynological preservation demonstrates a correlation with facies deposited in perennially wet, alluvial plain, lacustrine and tidally influenced settings. Organic assemblages distinguish between members in the Bromsgrove Sandstone Formation, and can subdivide members on palaeoenvironmental criteria, which is of local value in correlation. Palynological assemblages are mostly lacking where ephemeral depositional processes were dominant. The assemblages demonstrate a close relationship with sedimentary facies, their associations, and sediment colour, but the oxidation potential of pore fluids, during and soon after deposition, is an overriding control on organic preservation. These relationships are all beneficial for targeting sediments for further palynological analysis.
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Purvis, Kevin. "Comparative red bed diagenesis : examples from the Rotliegend and Skagerrak and Statfjord formation, North Sea UK sector." Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241231.
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Hecht, Christian A. "Multi-scale, structural analysis of geomechanical and petrophysical properties of Permocarboniferous red beds Vielskalige Strukturanalyse der geomechanischen und petrophysikalischen Eigenschaften von Permokarbonischen red beds /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=971623821.
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Aillud, Gary Stefan. "Palaeoecology, palaeoenvironmental analysis and their application to sequence stratigraphy : Lower Cretaceous, Lusitanian Basin, Portugal." Thesis, University of Plymouth, 2001. http://hdl.handle.net/10026.1/2102.
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Palaeoecological data can provide key information on depositional environments. This may be critical to the interpretation of marine sedimentary cycles and the recognition of ancient cycles and sequences. Although many recent studies have attempted to combine palaeoecology and sequence stratigraphy, the sequence stratigraphic model is commonly used to provide a temporally constrained framework for the evaluation of ecological and evolutionary events. This study shows how palaeoecology can be used as a powerful tool in the development of sequence stratigraphic models. A palaeoecological study of three Lower Cretaceous successions (at Ericeira, Cascais, Cabo Espichel) from the southern part of the Lusitanian Basin, Portugal, provides a basis for this study. This palaeoecological analysis allowed the construction of a detailed picture of the effects of relative sea-level, and other environmental factors, on sedimentary succession evolution. The results of this palaeoecological analysis have been represented on a series of depositional facies trend diagrams. The depositional facies diagrams have then been used to develop the sequence stratigraphy of the southern part of the Lusitanian Basin. The study successions record the temporal changes, and along-strike variation, in the evolution of three mixed carbonate-siliciclastic systems. The base of all the successions represents the development of narrow shelf with minor wave reworking. Siliciclastics were introduced by sand and gravel-load river dominated deltas with little reworking of the sediment at the channel mouths. This was characterised by the development of a clastic beach-barrier at Ericeira and a 'cool-water' carbonate ramp at Cascais. At Cabo Espichel a coral biostrome developed where coral ecology was controlled by terrigenous sedimentation and turbidity. The upper part of the successions represent a change in the morphology of the basin. A broad, shallow, low energy carbonate shelf developed that dissipated wave energy. In the nearshore environment siliciclastics were prevalent. The shelf carbonates are characteristic of the 'cool-water' type carbonates of the Cretaceous Tethyan realm. The more proximal Ericeira and Cabo Espichel successions record the alternation between marginal marine siliciclastic and shallow-water marine carbonate environments. The Cascais succession is characterised by carbonate platforms with abundant coral and rudist bivalve faunas. Palaeoecological analysis and development of the depositional facies trend diagrams have allowed the identification of one mega-sequence (2nd order), six sequences (3rd order) and higher resolution sequences and parasequences (4th order). 2nd and 3rd order sequences are correlatable across the southern part of the Lusitanian Basin. They also correlate with previously published sequence chronostratigraphy for the Tethyan realm. The palaeoecological analysis indicates that 2nd and 3rd order sequences are controlled by allocyclic processes and that 4th order cycles (sequences and parasequences) were dominated by autocyclic processes. As a result 4th order cycles cannot be correlated across the basin. This study has shown that detailed palaeoecological analysis can reveal a detailed, and more accurate, picture of the controls on the development of a basin fill than sedimentology alone. Along with the depositional trend diagrams, these data can provide a powerful method for the development of a sequence stratigraphic model and aid to interpretation of a basin fill.
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Macklin, Anne. "The excavations, interpretation and analysis of the Muslim necropolis at Quseir al-Qadim, Red Sea, Egypt." Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485547.
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Quseiral-Qadim lies on the Red Sea coast of Egypt, 8 kilometres north of the modern town of Quseir. The Romans, until 2nd century AD, Muslim Tradesmen some 1000 years later and probably Muslim Hajj pilgrims utilized this once ancient trading port until its demise in the late 15th-16th century when the Portuguese opened new trading routes via the Cape ofGood Hope. Essential rescue. archaeology was necessary at the site of the Muslim necropolis, which lay to the east ofthe main site and directly adjacent to a public beach area, due to the threat ofdevelopment ofthe nearby Movenpick Hotel Complex. However, the Egyptian Antiquities Authorities did not grant permission for the development and excavations ceased in its third season. 85 skeletons and a number of co-mingled remains were recovered and retained for bioarchaeological investigation prior to their re-interment at a nearby site. As the necropolis was categorically Muslim in nature, background research essentially encompassed the Islamic Religion, funerary and burial practice and Islamic concepts of both life and death. It is due to this research that assumptions have been made regarding possible causes ofdeath of the 85 individuals. Through the use of a discriminant anai1sis procedure it has been possible to speculate as to the geographical affiliation of a number ofthese individuals. It must be stressed however that no attempt was made to speculate on racial affiliations, simply geographical ones. This research attempts to fill the gap present in the archaeological record regarding Islamic human remains, Islamic funerary and burial practice and the likely migratory nature ofthe individuals once frequenting this location. There is a lack ofresearch with regards to this aspect ofIslamic archaeology, understandably due to political climates and the sensitivity of the subject; however research such as this is imperative for archaeology in the sense that it provides a necessary incite into away of life which does not differentiate between the theological and the secular, and ways in which Islam influences both Muslim attitudes to life and death.
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Alharbi, Mohammad Mosaed Eid Alahmadi. "Analysis of extreme precipitation events over the eastern Red Sea coast for recent and future climate conditions." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8603/.
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The investigation of extreme precipitation events over the western coast of Saudi Arabia is necessary to estimate their potential impact on both socioeconomic activities and the regional environment. The current study aims at understanding the atmospheric dynamics leading to extreme precipitation, to improve weather forecasting in the target region and the development of long-term adaptation policies. Preliminary results reveal that extreme precipitation events in this region occur during the wet season (Nov–Jan). The synoptic mechanisms of these events are a function of the complex interaction between tropical, subtropical and middle-latitude dynamics. The synoptic dynamic processes were identified by a subjective study of the highest 30 extreme events. In addition, the weather circulation patterns (WCPs) of all extreme events were classified objectively by means of an empirical orthogonal function (EOF) analysis based on the mean sea level pressure. WCPs were linked with synoptic dynamic processes and teleconnected with large-scale climate variability modes. Furthermore, WCPs, precipitation and data regarding other atmospheric variables from different regional climate models were used to investigate future changes in extreme precipitation events under climate change. The most important weather circulation patterns, which are associated with extreme precipitation events, were identified. The possibility of extreme precipitation events increases with great uncertainty.
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Johnston, Matthew W. "Spatial Analysis of the Invasion of Red Lionfish, Pterois volitans/miles, in the Western Atlantic Ocean and Caribbean Sea." NSUWorks, 2010. http://nsuworks.nova.edu/occ_stuetd/216.
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Pterois volitans and Pterois miles, two species of lionfish from the South Pacific and Indian Ocean, have become prolific invaders of reef, hard bottom, mangrove, and sea grass habitats along the United States Atlantic coast and Caribbean. Their route and timing of introduction is poorly understood. However, historical sightings and captures have been robustly documented since their introduction. This study presents an in-depth analysis of these records based on spatial location, dates of arrival, and physical factors present at capture sights. A stage map was created showing the progression of the invasion as a series of current-driven and proximity-based recruitment periods based on the observed invasion pattern. Using a model that was developed for this study, the relationship between depth, salinity, temperature, and current was examined, finding the latter to be the most influential parameter for transport to new areas. Temperature and extreme depth are perceived as the only limiting factors in the invasion. This predictive model can be applied to other species and locations.
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Elkhashab, Mohamed. "Tectonogeomorphological and satellite image analysis of the Red Sea passive margin at the latitude of Wadi Siatin, Northern Quseir, Egypt." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-170717.
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Remote sensing has become an essential tool to improve data collection and spatial
analysis in the geosciences. Identification of passive margin structures that are exposed along
the Egyptian coast of the Red Sea, and their control on landforms has been hampered by
limited data resolution and restricted access to this arid and inaccessible region. A major
challenge lies in distinguishing features in the landscape that formed due to long-term tectonic
activity and erosion from those features that modified the landscape recently. The goals of this
thesis were to determine to what degree the study area is currently tectonically active, and
what major hazards might affect the touristically developing coastal region.
This study deals with the structural and geomorphological evolution of the rift-related
structures and their impact on the sediment distribution and landforms variation in the
northern Quseir area. In such a remote desert area, field and remote morphostructural analysis
are needed to understand the structural and geomorphological evolution. The current study is
mainly based on high-resolution QuickBird image analysis and field investigation. Field
mapping was limited to one season, owing to acute safety concerns in the Eastern Desert.
In the study area, the pre-rift stratigraphy includes Pan-African basement rocks overlain by
pre-rift clastic and carbonate successions that range in age from Cambrian to Eocene. Syn-rift
clastic and carbonate rocks range in age from Late Oligocene to recent and show depositional
patterns controlled by fault systems. The field area exposes a section of a tectonically uplifted,
amagmatic sedimentary sequence, which formed due to passive-margin-related rifting of the
Red Sea: the Mesozoic and Tertiary sedimentary units that fill the 7-km wide coastal strip are
perfectly exposed as tilted fault blocks.
The results of my field mapping and structural analysis show that the fault architecture of
the area is dominated by a large NW-SE-striking fault system. A series of SE-dipping normal
faults are consistent in cross-section with listric fault geometry, rooting into an E-dipping
detachment at depth. Our mapping also revealed that left-steps in at least one of the major NS-
striking faults are accommodated by a flower structure, but not by SW-NE-oriented cross
faults as previously proposed in a neighboring area. Thus seismic activity is more likely to
occur on the large NW-striking normal faults, leading to potentially larger Magnitude
earthquakes than previously recognized in the area. The left-step may act as a barrier to
rupture propagation and should be examined in more detail.
The northwestern Red Sea coast is part of the straight coastal segment that is generally
characterized as seismically inactive. However, during the geological field mapping, I found
evidence for Plio-/Pleistocene vertical coastal uplift, likely due to earthquake-related coastal
and offshore faulting. Pliocene marine deposits emerged recently due to sea level-drop and
earthquake-related uplift. Even the presence of up to five distinct Pleistocene coral terraces
implies that at least some of the coastal uplift was seismogenic, because terraces of the same
age can be found at different elevations along strike. Presumably, some of the seawarddipping,
N-S-striking normal faults are active today, despite the lack of recent instrumental
seismicity. These findings imply long recurrence intervals for active faults in the northern
Quseir area. These results differ from previously published results for the adjacent Quseir-Um
Gheig sub-basin area, were E-W-striking strike-slip faults were mapped to offset the N-Sstriking
faults, and had been inferred as earthquake-generating faults by Abd El-Wahed et al.
(2010). Based on our mapping, we postulate that the large rift-parallel normal faults are
seismogenic.
Drainage network evolution within the study area is often structurally controlled and the
nature of these controls was examined in this study. The Wadi Siatin stream channel network
is classified in a relatively simple way, based on the high-resolution satellite data, with
dendritic, and rectangular considered the most fundamental channel geometries.
It was possible to distinguish the different morphological elements of the network, as well as
the anomalies that affect the patterns. This analysis revealed, in the northern Red Sea area
basins, the existence of old structures whose successive reactivations have left their mark on
the drainage network. Comparison of joint systems direction with the directions of the main
trunk stream channel of Wadi Siatin shows that the channel is highly affected by tectonic
jointing. First-order channels follow easily erodable faults.
Investigations concerning the relationship of stream-flow orientation with geological
structure in the Wadi Siatin Basin shows that, generally, the least influenced flows are those
of first-order which are governed simply by the valley side slopes on which they developed.
However, in certain geological and geomorphological situations, there are clear exceptions to
this generalization. Certainly, locally, geological control of these small streams may be even
higher than in many streams of higher order. In the peripheral parts of the Basin, expansion of
drainage into the available space has obviously been easiest along lines of weakness and, as a
consequence of this, streams of the first order come to exhibit a high degree of adjustment to
the underlying structure. The maximum structural control is reached by the streams of the
third order. Towards the higher orders, the influence of local structure becomes weaker.
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del, Campo Barquín Luis Matias. "A bio-socio-economic simulation model for management of the red sea urchin fishery in Chile." Thesis, University of Stirling, 2002. http://hdl.handle.net/1893/69.
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This study focused on the management of the red sea urchin Loxechinus albus fishery in Chile. The main objective was to design, construct, implement and assess a computer-based simulation model to analyse the biological effects, socio-economic consequences and spatial dynamics resulting from coastal management plans applied to this resource under the system of AMEBR. This was accomplished by using systems dynamics (SD) and geographical information systems (GIS) modelling, in a process of model development, run, optimisation, sensitivity analysis and risk management, and a series of field-based activities carried out at the cove of Quintay. The GIS model developed for allocating sea urchins restocking sites offered a flexible, cost-effective, user-friendly and descriptive technique for support decision-making on management of this species and other benthic resources. Final site selection for restocking was based on the identification, quantification and selection of higher suitability¦availability combinations (site categories). This map showed 16 different suitability¦availability combinations or site categories, ranging from 4¦100 to 8¦100 (suitability points¦availability %). These had an average of 6.44¦69.37 (covering an area of 82.5 Ha overall equivalent to 81.21% of the study area. This site classification demonstrated high heterogeneity between options, and revealed the full variety of alternatives for decision-making. More importantly, the generally high suitability indexes as well as available area emphasised the prospects for restocking sea urchins in this study area. Over and above of the quantitative outcomes obtained from running the GISRM (suitable and available restocking sites) and the BSESM (alternative strategic management plans), the case study-based analysis made it possible to disclose the wider issues related to the red sea urchin coastal management. These results demonstrated the biological inefficiency of traditional size/seasonal restriction-based approach (macro-scenario 1) for sustainable management of the target species. More importantly, final outcomes strongly suggested that a combination of adaptive restocking-based enhancement activities and flexible exploitation constituted a highly attractive approach (macro-scenario 3) for stock management of this fishery in terms of harvestable stock and related incomes. However from the economic analysis, stocking was also found to be economically unfeasible, being a rather cost intensive exercise negatively affected by high natural mortality rates. A single-variable optimisation analysis demonstrated that a higher survival rate is needed to generate sufficient profits to cover major restocking costs and a positive payment, or a cost reduction is essential to make up for the loss. On top to these practical constraints, based on the distinctive modest economic situation prevailing for most Chilean coves and hence their limited capacity to pay for stocking material, unless adequate and constant funding is available to support artisanal associations, they are very unlikely to develop mass release programmes. Given the economic (i.e.: high operating costs) and technical (i.e.: low survival rates) limitations conditioning stocking-based management cost-effectiveness and applicability, wide implementation of mass releases as a major approach for management of the red sea urchin fishery is very unlikely to take place in Chile. This study presents a methodology and offers a tool to design, evaluate and optimise coastal management plans for the red sea urchin in a dynamic, interactive, systematic, integrated and flexible way. The optional strategic management plans proposed on this study may not be applied equally to any AMEBR, as they are the outputs arising from a single cove-specific analysis. Still, the complete methodological framework and analysis procedures developed may be applied to run the BSESM and optimise management of a red sea urchin fishery at any other AMEBR case of study.
Books on the topic "Red Sea bed analysis"
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Wollenburg, Ingo. Sedimenttransport durch das arktische Meereis : die rezente lithogene und biogene Materialfracht =: Sediment transport by Arctic Sea ice : the recent load of lithogenic and biogenic material. Bremerhaven: Alfred-Wegener-Institut fur Polar- und Meeresforschung, 1993.
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Nappo, Dario. Money and Flows of Coinage in the Red Sea Trade. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198790662.003.0017.
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This chapter considers the financial scale of Indo-Roman trade via the Red Sea, comparing the large sums mentioned by Pliny with the evidence of customs dues, ostraca from the Red Sea port of Berenike, and hoards of Roman coins found in India. Analysis of the finds of Roman coins in India by value rather than number over time suggests that, contrary to prevailing opinion, there was not a major diminution in the value of the trade after the reign of Tiberius. Although there was apparently some decline in the Flavian period, the face value of coin finds recovers in the second century until the reign of Antoninus Pius. Coins for export to India were specially selected for their higher precious metal content, and older issues with a higher silver content continued to be exported to India long after they had largely ceased to circulate within the Roman Mediterranean.
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Ltd, ICON Group, and ICON Group International Inc. RED SEA HOTELS LTD.: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series). 2nd ed. Icon Group International, 2000.
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Shapiro, Larry. The Miracle Myth. Columbia University Press, 2017. http://dx.doi.org/10.7312/columbia/9780231178402.001.0001.
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There are many who believe Moses parted the Red Sea and Jesus came back from the dead. Others are certain that exorcisms occur, ghosts haunt attics, and the blessed can cure the terminally ill. Though miracles are immensely improbable, people have embraced them for millennia, seeing in them proof of a supernatural world that resists scientific explanation. Helping us to think more critically about our belief in the improbable, The Miracle Myth casts a skeptical eye on attempts to justify belief in the supernatural, laying bare the fallacies that such attempts commit. Through arguments and accessible analysis, Larry Shapiro sharpens our critical faculties so we become less susceptible to tales of myths and miracles and learn how, ultimately, to evaluate claims regarding vastly improbable events on our own. Shapiro acknowledges that belief in miracles could be harmless, but cautions against allowing such beliefs to guide how we live our lives. His investigation reminds us of the importance of evidence and rational thinking as we explore the unknown.
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Tiago Ferreira, de Lemos. 25 Portugal. Oxford University Press, 2018. http://dx.doi.org/10.1093/law/9780198808589.003.0025.
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This chapter provides an overview of the law of set-off in Portugal, both outside and within the context of insolvency. In Portugal, the policy justification for set-off is based on the fact that it may be used to avoid reciprocal payments whenever legally possible. The Portuguese Civil Code regulates set-off as part of its rules on contractual rights and obligations, but does not regard set-off as creating any security right (either in rem or in personam), lien, pledge, charge, mortgage, or other similar right over any assets of the parties involved. The chapter first considers set-off between solvent parties, focusing on unilateral set-off and contractual set-off, before discussing set-off against insolvent parties. It examines the relevant provisions of the Portuguese Netting Law and concludes with an analysis of cross-border issues relating to set-off between solvent parties and set-off against insolvent parties.
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Ferreira, Antonio Carlos. Ansiedade e Medo: Um estudo exegético-psicológico de Marcos 4,35-41. Brazil Publishing, 2021. http://dx.doi.org/10.31012/978-65-5861-415-9.
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This book seeks to read the narrative in Mark 4.35-41, focusing on the character of the individuals in order to understand their behavior when facing a dangerous situation in the storm at sea they ask Jesus, “Master, do you not care that we are perishing?” When facing danger, the prevalent emotions are fear, despair and anxiety. Therefore, the exegetical study will be conducted using psychology, a science that studies human behavior and mental processes. Based on the theoretical principles of Bible study as literature, the goal of the present study is to perform an exegetical analysis of the biblical narrative in Mark. The miracle description includes all issues related found in manuals and biblical commentaries with their multivisions. It also includes a parenetic, coeval analysis of the text based on the sciences of human behavior aimed at updating and application in modern life. Therefore, the text exegesis sheds light on the history, the validity of the pericope and update for modern life based on psychology. It applies to the study in question the historical-critical method over the structuralist and fundamentalist.
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Heim, Maria. Disentangling the Tangle. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190906658.003.0005.
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Chapter 4 argues that Buddhaghosa interpreted the Abhidhamma as a series of methods of analysis, oceanic and immeasurable in scope and practice. Its lists and formulas are distilled from the contextually embedded narrative contexts of the suttas, to provide, in an abstract form, the analytical practices to examine experience. Such lists and methods are, in principle and in practice, unending. This argument is counter to interpretations of Abhidhamma and Buddhaghosa that suggest that they be read as offering a metaphysics of irreducible reals or essences, and the chapter refutes these positions. It shows how the many phenomena listed in the Abhidhamma matrices operate in a modal and modular fashion as practical methods to help one to “know and see” within the therapeutic aims of the Buddhist path.
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Watson, Tim. “L’Ethnologue de Soi-même”. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190852672.003.0005.
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This chapter analyzes the early novels of Édouard Glissant set in Martinique, which are more anthropological than critics have realized up to now, as well as his early essays. Glissant studied anthropology in Paris (where Michel Leiris was his adviser), and even though he was an anticolonial writer and activist, he turned in his literary work toward the human science that was most marked by its birth under colonialism, anthropology. The chapter ends by arguing that Glissant’s literary meditation, Soleil de la conscience, can be read as a kind of ethnographic chronicle of Paris in the 1950s, a Caribbean anthropology of the French Métropole.
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Page, Piers, James Carr, William Eardley, David Chadwick, and Keith Porter. An Introduction to Clinical Research. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199570072.001.0001.
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This practical book is written specifically for junior doctors by a team of highly experienced authors, as an introductory guide to clinical research. It covers all areas that a junior doctor needs to consider, including funding, study design, ethics, data analysis, disseminating findings, and furthering one's research career. It presents a balance view of clinical research and is written by authors actively involved in clinical research both at the 'coal-face' and at a more supervisory level. Research can be a difficult process and it is essential to make sure that the project is set up in the correct way in order to get verifiable results. This easy-to-read guide is available to help junior doctors develop a good study design and present evidence of a sound academic practice, which will make obtaining funding more likely and be time-efficient. Getting started early in research and developing a solid, gradual understanding of clinical research through using this approachable book will be of huge benefit to junior doctors and their discipline.
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Heatwole, Harold. The Conservation and Biogeography of Amphibians in the Caribbean. Edited by Neftalí Ríos-López. Pelagic Publishing, 2022. http://dx.doi.org/10.53061/hucg2445.
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An expansive and detailed review of the biology of Caribbean amphibians, considering their threats, conservation and outlook in a changing world. Amphibians are the group of vertebrates undergoing the fastest rate of extinction; it is urgent that we understand the causes of this and find means of protecting them. This landmark illustrated volume brings together the leading experts in the field. As well as offering an overview of the region as a whole, individual chapters are devoted to each island or island-group and the measures used to protect their amphibians through legislation or nature reserves. The biological background of insular biogeography, including its methods, analysis and results, is reviewed and applied specifically to the problems of Caribbean amphibians – this includes a re-examination of patterns and general ideas about the status of amphibians in the Anthropocene. The Conservation and Biogeography of Amphibians in the Caribbean offers an important baseline against which future amphibian conservation can be measured in the face of climate change, rising sea level and a burgeoning human population.
Book chapters on the topic "Red Sea bed analysis"
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Muckelroy, Keith. "The Analysis of Sea-Bed Distributions." In Maritime Archaeology, 471–89. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-0084-5_49.
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Shamji, V. R. "Temporal Shallow Water Tidal Analysis at Sharm Obhur, the Red Sea." In Recent Advances in Geo-Environmental Engineering, Geomechanics and Geotechnics, and Geohazards, 463–65. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01665-4_107.
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Yu, Laihui, Mengfei Luan, and Siyu Wang. "Blue or Red Sea? An Analysis of Chinese Mobile Radio Industry." In Communication, Culture and Change in Asia, 33–52. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6710-5_3.
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Hausmann, Niklas, Olga Kokkinaki, and Melanie J. Leng. "Red Sea Palaeoclimate: Stable Isotope and Element-Ratio Analysis of Marine Mollusc Shells." In Geological Setting, Palaeoenvironment and Archaeology of the Red Sea, 725–40. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99408-6_33.
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Martin Mai, P., Jordi Julià, and Zheng Tang. "Crustal and Upper-Mantle Structure Beneath Saudi Arabia from Receiver Functions and Surface Wave Analysis." In Geological Setting, Palaeoenvironment and Archaeology of the Red Sea, 307–22. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99408-6_14.
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Elsayed, M. S., and E. Hoeck. "First Analysis of ERS-1 Altimeter Data in the Red Sea Area." In International Association of Geodesy Symposia, 386–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79721-7_39.
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Romaniv, Oksana, and Dina Yarmolyuk. "THE RED SEA AS TOURIST DESTINATION." In European vector of development of the modern scientific researches. Publishing House “Baltija Publishing”, 2021. http://dx.doi.org/10.30525/978-9934-26-077-3-5.
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Attracted by the rich marine life and favorable climate, tourism has become important for many Red Sea countries, with over 1 million tourists per year expected in the future. Extensive areas of the coastline have been developed to accommodate the increasing flux of tourists, especially in Aqaba of Jordan, the Jeddah coastline of Saudi Arabia and various areas along the Egyptian coastline. Many researchers have described the development of tourism on the Red Sea coast. But there are few publications about the possibilities of tourism development on the basis of water resources of the Red Sea. It is therefore very important to explore the possibilities of development of water tourism in the Red Sea. Through recent decades, significant advances in technology and the increase in international travel have made marine environments more accessible both in real and economic terms. Coastal and marine tourism has become a huge business that forms a significant component of the growing global tourism industry. The number of tourists attractions is not only determined by the capacity of the attractions themselves, but also by four other components: natural resources and environment; socially-economic environment; transportation; cultural resources. It discusses the concept of sustainable tourism development in the area, which leads to management of all resources in such a way that economic, social and natural needs can be fulfilled while maintaining culture integrity, essential ecological processes, biological diversity and life support systems. Travel and Tourism has less impact on natural resources and the environment than most other industry. The article contains the main Strengths, Weaknesses, Opportunities and Threats (SWOT) for water tourism in Red Sea. The SWOT approach is used to synthesize the results of the discussions and analysis of materials obtained in the study. SWOT analysis shows that the strengths outweigh the weaknesses and the opportunities outweigh the threats. There are three basic reasons why marine tourism, and tourism in general will continue to grow. Primarily, there is still a large potential for growth in the tourism sector, and the marine tourism sector as a key tourism component will naturally benefit from this growth. Secondarily, the tourism sector will also benefit from improved communication and transportation technologies.
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Yang, Ang, Hussein A. Abbass, and Ruhul Sarker. "How Hard Is It To Red Team?" In Applications of Information Systems to Homeland Security and Defense, 46–78. IGI Global, 2006. http://dx.doi.org/10.4018/978-1-59140-640-2.ch003.
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Red teaming is the process of studying a problem by anticipating adversary behaviors. When done in simulations, the behavior space is divided into two groups: one controlled by the red team, which represents the set of adversary behaviors or bad guys; the other controlled by the blue team, which represents the set of defenders or good guys. Through red teaming, analysts can learn about the future by forward prediction of scenarios. More recently, defense has been looking at evolutionary computation methods in red teaming. The fitness function in these systems is highly stochastic, where a single configuration can result in multiple outcomes. Operational, tactical and strategic decisions can be made based on the findings of the evolutionary method in use. Therefore, there is an urgent need to understand the nature of these problems and the role of the stochastic fitness to gain insight into the possible performance of different methods. This chapter presents a first attempt at characterizing the search space difficulties in red teaming to shed light on the expected performance of the evolutionary method in stochastic environments.
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Hussein, K., A. Hussein, E. Hegazy, and A. Amin. "Structural design of a floating foundation for offshore wind turbines in red sea." In Analysis and Design of Marine Structures, 575–83. CRC Press, 2013. http://dx.doi.org/10.1201/b15120-78.
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Kweakason, Amandus P. "MICROWEAR ANALYSIS OF SOME ARTEFACTS FROM ARCHAEOLOGICAL HORIZON 5." In A Holocene Prehistoric Sequence in the Egyptian Red Sea Area: The Tree Shelter, 63–72. Leuven University Press, 2008. http://dx.doi.org/10.2307/j.ctt9qf03t.7.
Full textConference papers on the topic "Red Sea bed analysis"
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Taheri, Saeedeh, Graham Ian Brodie, and Dorin Gupta. "EFFECTIVENESS OF A MICROWAVE FLUIDISED BED DRYER IN ERADICATION OF SEED-BORNE BOTRYTIS GREY MOLD OF LENTILS." In Ampere 2019. Valencia: Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/ampere2019.2019.9635.
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Lentil is one of the important pulse crops in the world with a high proportion of easily digestible protein. However, there are several pests and pathogens which cause losses during crop growth, harvesting and post-harvest storage. Microwave processing has shown great potential to eradicate pests and pathogens from grains; however, there is still concerns about its heat uniformity, which is of crucial importance in pest and pathogen control. Fluidization using forced hot air is one of the potential solutions for having uniform temperature during microwave processing. In this study, a single mode microwave cavity, with a 2.45 GHz microwave source, was modified to have a microwave fluidized bed and used to evaluate its potential to eliminate the Botrytis grey mold (BGM) pathogen, which is one of the important seed-borne pathogens of lentil crops in Australia. Air speed was maintained to be constant during the experiment and was just enough to fluidize 100g of red lentils in the sample holder. Two wet based (w.b.) seed moisture contents (m.c.) of 10.5% and 18.5% were prepared and the process parameters were selected as: air temperature at 50 and 60°C; microwave power at 0, 300, 400 W for 18.5% m.c. and 0, 400, 500 W for 10.5% m.c.; and exposure times of 5 and 10 min. These parameters were chosen to reach the final temperature of below 70°C. The effect of process parameters on seed moisture loss, seed germination, electrical conductivity of seed soaking water and percentage of infected seeds (IS%) were analyzed using general factorial regression and analysis of variance. The results showed that the most effective factors on moisture loss, after seed moisture content, was exposure time, followed by microwave power and air temperature. While final bed temperature was affected mostly by air temperature, and then by microwave power. Furthermore, based on general full factorial regression and pareto chart of standardized effects, moisture content had by far the most influence on the reduction of IS%. Seed pathogen inoculum reduction, without significant seed viability loss, was obtained by applying microwave power of 300W and set air temperature of 60°C (actual inlet air temperature of 57±1°C) on seeds with m.c. of 18.5% for 10 min. This gave a 27% reduction in IS% (from 82% to 55%).
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Nuutinen, Laura H., Minna S. Tiainen, Mika E. Virtanen, and Risto S. Laitinen. "Coatings on Bed Particles From FB-Combustion of Different Biomasses." In 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-008.
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The FB-combustion of several biomass fuels (bark, wood in different forms, biosludge, chicken litter, REF and forest residue) with different bed materials (quartz, natural sand, and recently introduced GR Granule) has been studied in this work. The bed samples have been collected during the laboratory, pilot, and full scale tests. The chemical composition of the coating layers and agglomerates were characterized by SEM-EDX. Line scans, point analyses, and X-ray maps were used to characterize the coating layers further. It was observed that the chemical composition of the coating of the bed particles depends both on the fuel type and on the bed material. The thickness of coating layers was also dependent on fuel and combustion history. The coatings were often seen to contain several superimposed layers. The innermost layer mainly contained alkali silicates, whereas the outermost layer was calcium-rich or magnesium-rich. In some cases the coating layers seem to protect the bed particles from agglomeration.
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Alkhayyat, M., T. Brahimi, S. Langodan, and I. Hoteit. "Wave Energy in the Red Sea Region Perspectives and Analysis." In 2020 6th IEEE International Energy Conference (ENERGYCon). IEEE, 2020. http://dx.doi.org/10.1109/energycon48941.2020.9236479.
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Hagiwara, Teruhiko. "Sea Bed Logging: Data Analysis with Constant Transmitter-Receiver Offsets." In SEG Technical Program Expanded Abstracts 2013. Society of Exploration Geophysicists, 2013. http://dx.doi.org/10.1190/segam2013-0094.1.
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Coral, Juan Carlos, Francesco Paone, and Andrea Marceglia. "3D Seismic Reprocessing for Geophysical Analysis of Sea Bottom, Sea Bed Mapping and Geo-Hazard Identification." In SPE Asia Pacific Oil and Gas Conference and Exhibition. Society of Petroleum Engineers, 2013. http://dx.doi.org/10.2118/165853-ms.
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Alkhalifah, T. A. "T Migration and Velocity Analysis - Application to Real Data from the Red Sea." In 63rd EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2001. http://dx.doi.org/10.3997/2214-4609-pdb.15.a-06.
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Daud, Hanita, Radzuan Razali, Vijanth Asirvadam, and Noorhana Yahya. "Sea bed logging applications: ANOVA analysis for synthetic data from electromagnetic (EM) simulator." In INTERNATIONAL CONFERENCE ON FUNDAMENTAL AND APPLIED SCIENCES 2012: (ICFAS2012). AIP, 2012. http://dx.doi.org/10.1063/1.4757495.
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Daud, Hanita, Radzuan Razali, and Vijanth Asirvadam. "Sea bed logging applications: ANOVA analysis 2 for synthetic data from electromagnetic (EM) simulator." In 2012 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE). IEEE, 2012. http://dx.doi.org/10.1109/apace.2012.6457642.
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Wang, Zhong, Leiv‐J Gelius, and Fan‐Nian Kong. "A sensitivity analysis of the sea bed logging technique with respect to reservoir heterogeneities." In SEG Technical Program Expanded Abstracts 2008. Society of Exploration Geophysicists, 2008. http://dx.doi.org/10.1190/1.3063747.
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Kremer, Matthew J., and Savas Yavuzkurt. "The Modeling and Analysis of a Package-Scale Circulating Fluidized Combustor." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0002.
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The preliminary analysis of a package-scale circulating fluidized bed (CFB) combustor through modeling and experimentation was performed to help determine particle trajectories and carbon burnout efficiency. The CFB consisted of a primary fast fluidizing bed and two bubbling beds. The fluidized bed models found in literature and a freeboard model utilizing a commercial code, FLUENT, were used in simulations. Primary gas velocity of the fast fluidizing bed was varied between 4.9 and 12.2 m/s and gas temperatures were varied between 800 and 1200 K. For comparison with computations of hydrodynamics, a scaled down version of the combustor was run using granulated plastic particles at 300 K. The results of computations showed that the freeboard has a very complex flow with many recirculation zones that usually become larger and move away from the walls with increasing primary velocity. There was less particle movement in the experiments than in the simulations due to the differences in particle diameters, the type of particles, the gas temperature, and the scaling geometry.
Reports on the topic "Red Sea bed analysis"
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Amela, R., R. Badia, S. Böhm, R. Tosi, C. Soriano, and R. Rossi. D4.2 Profiling report of the partner’s tools, complete with performance suggestions. Scipedia, 2021. http://dx.doi.org/10.23967/exaqute.2021.2.023.
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This deliverable focuses on the proling activities developed in the project with the partner's applications. To perform this proling activities, a couple of benchmarks were dened in collaboration with WP5. The rst benchmark is an embarrassingly parallel benchmark that performs a read and then multiple writes of the same object, with the objective of stressing the memory and storage systems and evaluate the overhead when these reads and writes are performed in parallel. A second benchmark is dened based on the Continuation Multi Level Monte Carlo (C-MLMC) algorithm. While this algorithm is normally executed using multiple levels, for the proling and performance analysis objectives, the execution of a single level was enough since the forthcoming levels have similar performance characteristics. Additionally, while the simulation tasks can be executed as parallel (multi-threaded tasks), in the benchmark, single threaded tasks were executed to increase the number of simulations to be scheduled and stress the scheduling engines. A set of experiments based on these two benchmarks have been executed in the MareNostrum 4 supercomputer and using PyCOMPSs as underlying programming model and dynamic scheduler of the tasks involved in the executions. While the rst benchmark was executed several times in a single iteration, the second benchmark was executed in an iterative manner, with cycles of 1) Execution and trace generation; 2) Performance analysis; 3) Improvements. This had enabled to perform several improvements in the benchmark and in the scheduler of PyCOMPSs. The initial iterations focused on the C-MLMC structure itself, performing re-factors of the code to remove ne grain and sequential tasks and merging them in larger granularity tasks. The next iterations focused on improving the PyCOMPSs scheduler, removing existent bottlenecks and increasing its performance by making the scheduler a multithreaded engine. While the results can still be improved, we are satised with the results since the granularity of the simulations run in this evaluation step are much ner than the one that will be used for the real scenarios. The deliverable nishes with some recommendations that should be followed along the project in order to obtain good performance in the execution of the project codes.
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Douglas, Thomas, Matthew Sturm, Joel Blum, Christopher Polashenski, Svetlana Stuefer, Christopher Hiemstra, Alexandra Steffen, Simon Filhol, and Romain Prevost. A pulse of mercury and major ions in snowmelt runoff from a small Arctic Alaska watershed. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41203.
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Atmospheric mercury (Hg) is deposited to Polar Regions during springtime atmospheric mercury depletion events (AMDEs) that require halogens and snow or ice surfaces. The fate of this Hg during and following snowmelt is largely unknown. We measured Hg, major ions, and stable water isotopes from the snowpack through the entire spring melt runoff period for two years. Our small (2.5 ha) watershed is near Barrow (now Utqiaġvik), Alaska. We measured discharge, made 10 000 snow depths, and collected over 100 samples of snow and meltwater for chemical analysis in 2008 and 2009 from the watershed snowpack and ephemeral stream channel. Our results suggest AMDE Hg complexed with Cl⁻ or Br⁻ may be less likely to be photochemically reduced and re-emitted to the atmosphere prior to snowmelt, and we estimate that roughly 25% of the Hg in snowmelt is attributable to AMDEs. Projected Arctic warming, with more open sea ice leads providing halogen sources that promote AMDEs, may provide enhanced Hg deposition, reduced Hg emission and, ultimately, an increase in snowpack and snowmelt runoff Hg concentrations.
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Downes, Jane, ed. Chalcolithic and Bronze Age Scotland: ScARF Panel Report. Society for Antiquaries of Scotland, September 2012. http://dx.doi.org/10.9750/scarf.09.2012.184.
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The main recommendations of the panel report can be summarised under five key headings: Building the Scottish Bronze Age: Narratives should be developed to account for the regional and chronological trends and diversity within Scotland at this time. A chronology Bronze Age Scotland: ScARF Panel Report iv based upon Scottish as well as external evidence, combining absolute dating (and the statistical modelling thereof) with re-examined typologies based on a variety of sources – material cultural, funerary, settlement, and environmental evidence – is required to construct a robust and up to date framework for advancing research. Bronze Age people: How society was structured and demographic questions need to be imaginatively addressed including the degree of mobility (both short and long-distance communication), hierarchy, and the nature of the ‘family’ and the ‘individual’. A range of data and methodologies need to be employed in answering these questions, including harnessing experimental archaeology systematically to inform archaeologists of the practicalities of daily life, work and craft practices. Environmental evidence and climate impact: The opportunity to study the effects of climatic and environmental change on past society is an important feature of this period, as both palaeoenvironmental and archaeological data can be of suitable chronological and spatial resolution to be compared. Palaeoenvironmental work should be more effectively integrated within Bronze Age research, and inter-disciplinary approaches promoted at all stages of research and project design. This should be a two-way process, with environmental science contributing to interpretation of prehistoric societies, and in turn, the value of archaeological data to broader palaeoenvironmental debates emphasised. Through effective collaboration questions such as the nature of settlement and land-use and how people coped with environmental and climate change can be addressed. Artefacts in Context: The Scottish Chalcolithic and Bronze Age provide good evidence for resource exploitation and the use, manufacture and development of technology, with particularly rich evidence for manufacture. Research into these topics requires the application of innovative approaches in combination. This could include biographical approaches to artefacts or places, ethnographic perspectives, and scientific analysis of artefact composition. In order to achieve this there is a need for data collation, robust and sustainable databases and a review of the categories of data. Wider Worlds: Research into the Scottish Bronze Age has a considerable amount to offer other European pasts, with a rich archaeological data set that includes intact settlement deposits, burials and metalwork of every stage of development that has been the subject of a long history of study. Research should operate over different scales of analysis, tracing connections and developments from the local and regional, to the international context. In this way, Scottish Bronze Age studies can contribute to broader questions relating both to the Bronze Age and to human society in general.
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A sedimentological analysis of sea grass bed substrate from Bay County, Florida. Florida Geological Survey, 2007. http://dx.doi.org/10.35256/ri107.
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