Academic literature on the topic 'Bayo'
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Journal articles on the topic "Bayo"
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Jacinto-Hernández, Carmen, Guillermo Carrillo-Castañeda, and Albino Campos-Escuerdo. "Caracterización de cuatro variedades de frijol (Phaseolus vulgaris L.) por sus cualidades físicas y nutricionales. I. Aspectos metodológicos." Agronomía Mesoamericana 7, no. 2 (June 2, 2016): 37. http://dx.doi.org/10.15517/am.v7i2.24756.
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Seeds of four bean varieties: BAT 104, Bayo Río Grande, Canario 107 and Jamapa were studied with the objective of characterize them by the analysis of protein content, L-tryptophan (L-trp) and available L-methionine (L-met) as well as technological qualities. Preliminar tests on the L-met and L-trp content were performed in soluble protein in aqueous extracts of NaCl, acetic acid and ethanol using microbiological and spectrometrical methods. Bayo Río Grande with the longest cooking time (98 minutes) showedthe largest proportion of coat weight (11.4); Bayo Río Grande, BAT 104 and Jamapa showed small seed size. BAT 104 was the variety in which the highest total protein content was found (27.3 %) while Bayo Río Grande had the lowest (23.3 %). The average content of both aminoacids from the four varieties was higher in the saline extracts (43 % L-met and 92 % L-trp). Therefore, the subsequent analysis were only performed on the saline extracts of the materials. The cultivars Bayo Río Grande and Canario 107 showed the highest amount of L-met and L-trp respectively.
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Gremillion, S. K., A. K. Culbreath, D. W. Gorbet, B. G. Mullinix, R. N. Pittman, K. L. Stevenson, J. W. Todd, R. E. Escobar, and M. M. Condori. "Field Evaluations of Leaf Spot Resistance and Yield in Peanut Genotypes in the United States and Bolivia." Plant Disease 95, no. 3 (March 2011): 263–68. http://dx.doi.org/10.1094/pdis-06-10-0454.
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Field experiments were conducted in 2002 to 2006 to characterize yield potential and disease resistance in the Bolivian landrace peanut (Arachis hypogaea) cv. Bayo Grande, and breeding lines developed from crosses of Bayo Grande and U.S. cv. Florida MDR-98. Diseases of interest included early leaf spot, caused by the fungus Cercospora arachidicola, and late leaf spot, caused by the fungus Cercosporidium personatum. Bayo Grande, MDR-98, and three breeding lines, along with U.S. cvs. C-99R and Georgia Green, were included in split-plot field experiments in six locations across the United States and Bolivia. Whole-plot treatments consisted of two tebuconazole applications and a nontreated control. Genotypes were the subplot treatments. Area under the disease progress curve (AUDPC) for percent defoliation due to leaf spot was lower for Bayo Grande and all breeding lines than for Georgia Green at all U.S. locations across years. AUDPC for disease incidence from one U.S. location indicated similar results. Severity of leaf spot epidemics and relative effects of the genotypes were less consistent in the Bolivian experiments. In Bolivia, there were no indications of greater levels of disease resistance in any of the breeding lines than in Bayo Grande. In the United States, yields of Bayo Grande and the breeding lines were greater than those of the other genotypes in 1 of 2 years. In Bolivia, low disease intensity resulted in the highest yields in Georgia Green, while high disease intensity resulted in comparable yields among the breeding lines, MDR-98, and C-99R. Leaf spot suppression by tebuconazole was greater in Bolivia than in the United States. This result indicates a possible higher level of fungicide resistance in the U.S. population of leaf spot pathogens. Overall, data from this study suggest that Bayo Grande and the breeding lines may be desirable germplasm for U.S. and Bolivian breeding programs or production.
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Agricolas, Ciencias. "Contenido de osmoprotectores, ácido ascórbico y ascorbato peroxidasa en hojas de frijol sometidas a estrés por sequía." Revista Mexicana de Ciencias Agrícolas 5, no. 5 (February 15, 2018): 859. http://dx.doi.org/10.29312/remexca.v5i5.907.
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La acumulación de osmoprotectores en plantas que se encuentran en condiciones de estrés por sequía, le permiten contrarrestar el efecto negativo que le provoca dichas condición ambiental. En el presente trabajo se estudió la respuesta bioquímica de plantas de frijol con base en la acumulación de carbohidratos solubles, almidón, ácido ascórbico, así como la actividad de la enzima ascorbato peroxidasa, en las hojas simples y en las dos primeras hojas trifolioladas de la variedad resistente, Pinto Villa, y la susceptible a sequía Bayo Madero, ambas de raza Durango. Las plantas de ambas variedades se sometieron a tres tratamientos de humedad, riego, sequía y riego de recuperación. Con respecto a Bayo Madero, Pinto Villa mostró una mayor respuesta de tolerancia al estrés de humedad relacionada con: altas concentraciones de prolina, de ácido ascórbico y mayor actividad de la enzima ascorbato peroxidasa, ésta última en el tratamiento de sequía. En relación a la cantidad de carbohidratos solubles, Bayo Madero fue estadísticamente superior (p< 0.05) a Pinto Villa, lo cual puede indicar que estos compuestos están siendo utilizados por la planta para sintetizar otros compuestos osmoprotectores como la prolina y que pueden considerarse como indicadores importantes para clasificar especies vegetales que sobrevivan y cumplan su ciclo biológico bajo condiciones de estrés de humedad.
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Arrondo, José Luis. "Premio Ángel Bayo. Caminando hacia la sexta edición." Revista Internacional de Andrología 7, no. 4 (October 2009): 237–39. http://dx.doi.org/10.1016/s1698-031x(09)73393-x.
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Bedello, P. G., M. Goitre, D. Cane, and G. Roncarolo. "Allergic contact dermatitis to Bayo-N-OX-I." Contact Dermatitis 12, no. 5 (May 1985): 284. http://dx.doi.org/10.1111/j.1600-0536.1985.tb01141.x.
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Glasser, Neil F., Stephan Harrison, Susan Ivy-Ochs, Geoffrey A. T. Duller, and Peter W. Kubik. "Evidence from the Rio Bayo valley on the extent of the North Patagonian Icefield during the Late Pleistocene–Holocene Transition." Quaternary Research 65, no. 1 (January 2006): 70–77. http://dx.doi.org/10.1016/j.yqres.2005.09.002.
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AbstractThis paper presents data on the extent of the North Patagonian Icefield during the Late Pleistocene–Holocene transition using cosmogenic nuclide exposure age and optically stimulated luminescence dating. We describe geomorphological and geochronological evidence for glacier extent in one of the major valleys surrounding the North Patagonian Icefield, the Rio Bayo valley. Geomorphological mapping provides evidence for the existence of two types of former ice masses in this area: (i) a large outlet glacier of the North Patagonian Icefield, which occupied the main Rio Bayo valley, and (ii) a number of small glaciers that developed in cirques on the slopes of the mountains surrounding the valley. Cosmogenic nuclide exposure-age dating of two erratic boulders on the floor of the Rio Bayo valley indicate that the outlet glacier of the icefield withdrew from the Rio Bayo valley after 10,900 ± 1000 yr (the mean of two boulders dated to 11,400 ± 900 yr and 10,500 ± 800 yr). Single-grain optically stimulated luminescence (OSL) dating of an ice-contact landform constructed against this glacier indicates that this ice mass remained in the valley until at least 9700 ± 700 yr. The agreement between the two independent dating techniques (OSL and cosmogenic nuclide exposure age dating) increases our confidence in these age estimates. A date obtained from a boulder on a cirque moraine above the main valley indicates that glaciers advanced in cirques surrounding the icefield some time around 12,500 ± 900 yr. This evidence for an expanded North Patagonian Icefield between 10,900 ± 1000 yr and 9700 ± 700 yr implies cold climatic conditions dominated at this time.
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Wagner, David L. "Global insect decline: Comments on Sánchez-Bayo and Wyckhuys (2019)." Biological Conservation 233 (May 2019): 332–33. http://dx.doi.org/10.1016/j.biocon.2019.03.005.
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Jansen, Jan, Michel R. Doortmont, John H. Hanson, and Dmitri van den Bersselaar. "Enduring Methods – Editors’ Introduction." History in Africa 47 (June 2020): 1–3. http://dx.doi.org/10.1017/hia.2020.13.
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The 2020 volume of History in Africa is the eleventh produced by the current editorial team. It will also be the last, as we are handing over to a brand-new team, consisting of esteemed colleagues Lorelle Semley, Sandra Barnes, Bayo Holsey, and Egodi Uchendu.
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Bruner, Edward M. "Routes of remembrance: refashioning the slave trade in Ghana - By Bayo Holsey." Journal of the Royal Anthropological Institute 15, no. 2 (June 2009): 420–21. http://dx.doi.org/10.1111/j.1467-9655.2009.01566_11.x.
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KLEIN, MARTIN. "Routes of Remembrance: Refashioning the Slave Trade in Ghana by Bayo Holsey." American Ethnologist 36, no. 4 (November 2009): 830–31. http://dx.doi.org/10.1111/j.1548-1425.2009.01211_29.x.
Full textDissertations / Theses on the topic "Bayo"
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Kuylenstierna, Elin. "The Crystal Size Distribution of Cerro Bayo." Thesis, Uppsala universitet, Mineralogi, petrologi och tektonik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354154.
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To understand the complex structure of magmatic plumbing systems beneath volcanoes, one needs to study the different textures shown in the igneous rocks produced by the volcano in question. By doing this, one can get a clue of the processes that resulted in the final rock. One of the most important methods to use for studying rock samples is the Crystal Size Distribution (CSD), which can reveal a great amount of information about the history of the rock and give an insight in the journey of the crystals during their time in the magma. An extinct volcano named Chachahuén, located in Argentina, South America, was chosen for this study. Samples of rock were collected from one of its laccoliths named Cerro Bayo and was identified as hornblende-bearing dacite. The difference in crystal size was very significant in these samples, with both larger and smaller crystals embedded in the same matrix. This is interesting considering the fact that large crystals form by slow cooling of the magma while smaller crystals form as the magma cools rapidly. By studying the CSD and interpreting other textures found in samples of igneous rock, one may interpret different processes which affected the crystals, indicating what the structure of the magma chamber once looked like.För att kunna förstå den komplexa strukturen hos magmatiska system under vulkaner måste man studera olika texturer som påträffas i de magmatiska bergarter producerade av vulkanen i fråga. Genom att göra detta kan man få en inblick i de processer som resulterade i den slutgiltiga bergarten. En av de viktigaste metoderna att använda sig av för att studera stenprov är kristallstorleksfördelningen (CSD), som kan avslöja en mängd viktig information om bergarten och kristallernas historia under sin färd i magman. En slocknad vulkan vid namn Chachahuén belägen i Argentina, Sydamerika, valdes ut för denna studie. Stenprover samlades från en av dess lakkoliter med namnet Cerro Bayo, och identifierades som hornblände-bärande dacit. Skillnaden i kristallstorleken var mycket markant, med både större och mindre kristaller inbäddade i samma matrix. Detta är intressant med tanke på att stora kristaller bildas under en långsam nedkylning av magma medan mindre kristaller bildas när magma kyls ner snabbt. Genom att studera CSD och tolka andra texturer som finns hos magmatiska stenprover kan man tolka olika processer som har påverkat kristallerna, vilket i sin tur indikerar hur strukturen av magmakammaren en gång såg ut.
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Poblete, Jaime Andrés. "Geology, geochronology and structural reconstruction of the Cerro Bayo epithermal district, Chilean Patagonia." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/36466.
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The Cerro Bayo low-sulfidation epithermal district is located in the Aysén region, Chilean Patagonia. The oldest rocks that crop out in the district correspond to mainly rhyolitic fragmental successions of the Jurassic Ibáñez Formation which erupted based on biotite ⁴°Ar/³⁹Ar and zircon U-Pb ages, between ca. 154 and 144 Ma. The veins at Cerro Bayo are spatially associated with N-S aligned rhyolitic domes dated at 146.50±0.21 and 146.3±0.2 Ma (zircon U-Pb), intruding the volcanic rocks. Dacitic domes dated at 83.0±0.21 and 82.6±0.2 Ma (zircon U-Pb) are present to the west of the district at Laguna Verde. Silver and gold mineralization is hosted by steeply dipping N-S to NW trending quartz veins, that were emplaced in three main episodes based on adularia ⁴°Ar/³⁹Ar ages: (1) Mallines: ca. 144-142; (2) Bahía Jara and Brillantes: ca .137-124 Ma; and (3) Laguna Verde: 114-111 Ma.
Clay alteration mineralogy around the veins consists of illite±smectite±kaolinite–chlorite. At Mallines the illite+kaolinite–smectite mineral assemblage combined with the high illite crystallinity index indicates that these veins are not deeply eroded and the surface outcrops correspond to high levels within the low-sulfidation epithermal deposit model. At Bahia Jara the illite ± smectite – kaolinite and at Brillantes the illite–chlorite–kaolinite assemblages, and overall lower illite crystallinity indices indicate that the veins in these areas are more deeply eroded than at Mallines. Illite crystallinity index is lower for Brillantes than at Bahía Jara indicating that the level of exposure at Brillantes is deeper than at Bahía Jara. At Laguna Verde the mainly illite – smectite clay alteration assemblage plus the lowest illite crystallinity indices of the entire district indicate higher temperature of formation and, by inference, the most deeply eroded veins of the entire district.
The level of exposure of the veins has no relation with age of mineralization and the veins suffered differential degree of uplift and erosion after the Late Cretaceous. Moreover, glacial erosion has not uniformly affected the area. The observed textures and clay alteration assemblages at Mallines indicate important potential at 150–250 m depth if classic published deposit models are considered.
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Sun, Yang. "Magma Evolution of the Cerro Bayo Laccolith in the Chachahuén Volcanic Complex, Argentina." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-360467.
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The Chachahuén volcanic complex, with the Cerro Bayo laccolith as one of the largest intrusions, is part of back-arc Payenia volcanic province in western central Argentina. Laccoliths show potential for generating oil in sedimentary basins and producing ore deposits. It is crucial to put more effort into understanding the magma plumbing system beneath the Chachahuén volcanic complex, which the Cerro Bayo laccolith is part of. Thus this project present the first thermobarometric modelling for the Cerro Bayo laccolith and the Chachahuén volcanic complex. Several thermometers and barometers were applied to plagioclase, amphibole and clinopyroxene to understand magma evolution in the underlying plumbing system. The dacitic to rhyodacitic laccolith rocks from Cerro Bayo have porphyric textures with plagioclase in the form of both clots (glomerocrysts) and single crystals, amphibole and clinopyroxene as main phenocrysts, while enclaves are more mafic in composition and have equigranular textures. Plagioclase in the sample varies from andesine to labradorite with a composition of An22-An68, while the clinopyroxene can be classified into diopside to augite with cores (Mg#=76-84) and rims (Mg#62-72). Amphibole, varies from pargasite, ferropargasite to magesiohastingsite and hastingsite, which can be grouped into three groups according to the Mg#: low Mg# amphibole (Mg# = 40-51), medium Mg# amphibole (Mg# = 52-61) and high Mg# amphibole (Mg# = 62-78). Besides, most of the Fe-Ti oxides in the samples are titanomagnetite with Usp mol.% in the range of 0.04-0.54. Results from clinopyroxene-liquid thermobarometers suggest a crystallization depth of 44 to 51 km for clinopyroxene cores and a crystallization depth of 19 to 31 km for rims, of which the derived crystallization temperatures are in the range of 1144 to 1170 °C and 973 to 1002 °C respectively. On the other hand, different thermobarometers of amphibole give consistent results of crystallization temperatures and depths. According to the amphibole-liquid thermometer, low Mg# (Mg#= 40-51) amphiboles have the lowest crystallization temperature in the range of 898 to 931°C, while medium Mg# (Mg#=52-61) amphiboles have higher crystallization temperatures in the range of 951 to 972°C and high Mg# (Mg# = 62-78) amphiboles have highest crystallization temperatures between 991 and 1013°C. The depth translated from pressure derived from amphibole-liquid barometers give a shallower crystallization depth range from 19 to 30 km for low Mg# amphiboles, a deeper crystallization depth in the range of 22 to 39 km for high Mg# amphiboles and deepest crystallization depth range of 27 to 41 km for medium Mg# amphiboles. Moreover, a depth from 2 to 20 km could be gained from the plagioclase-liquid thermobarometry which crystallized at 883 to 910°C. It is worth to point out that crystallization depth of clinopyroxene cores is deeper than the Moho in the Chachahuén area, while crystallization depth and temperatures of clinopyroxene rims are consistent with those of high Mg# amphiboles. Consistent temperatures and depths are also found for crystallization of plagioclase and low Mg# amphiboles which intergrow with each other. Thus, a multi-level magma plumbing system began from below the Moho, with a mushy zone in the upper crust, could be suggested to exist beneath the Cerro Bayo laccolith. Evidence from both petrology and geochemistry also indicate fractional crystallization as well as processes of magma mixing and recharge during magma evolution.Chachahuén火山综合体，包含其最大的侵入体Cerro Bayo岩盘，是位于阿根廷中西部Payenia弧后火山区的一部分。前人研究多着重于岩石学、地球化学和地层学方面，因而针对下伏岩浆涌升系统的研究在该地区极具前瞻性，需要投入更多工作。本文首次尝试对Chachahuén火山复合体应用温压计进行研究，针对斜长石、角闪石和单斜辉石应用了不同的温度计和压力计，以揭示下伏于Cerro Bayo岩盘的岩浆涌升系统中的岩浆演化。 来自Chachahuén火山复合体Cerro Bayo岩盘的英安质-流纹英安质火成岩具有板状-似斑状结构，其斑晶主要为单晶或聚合物形式存在的斜长石、角闪石及单斜辉石。此外，岩盘中还发现具等粒结构的酸性捕虏体的存在。样品中斜长石（An=22-68）主要成分为中长石至拉长石.单斜辉石主要为透辉石和普通辉石，常发育高镁值核部（Mg#=76-84）和低镁值环带（Mg#62-72）。角闪石主要为韭闪石、铁韭闪石、镁绿钙闪石和绿钙闪石，可根据镁值进一步划分为三个组：低镁值组（Mg# = 40-51），低镁值组（Mg# = 52-61）和高镁值组（Mg# = 62-71）。此外，样品中的钛铁氧化物重要为钛磁铁矿（Usp%=0.04-0.54）。 单斜辉石-熔体温压计的结果表明单斜辉石的核部和环带的结晶温度和深度有所差异：核部具有较高的结晶温度（1144-1170 °C）和较深的结晶深度（44-50km），而环带具有较低的结晶温度（973-1002 °C）和较浅的结晶深度（18-31 km）。与角闪石相关的不同温压计给出了类似的结晶温度和压力，其中存在的微小差异均在误差范围内。因此本文将角闪石-熔体温压计的结果作为最终结果，其显示低镁值角闪石具有较低结晶温度（898-931°C），中镁值角闪石具较高结晶温度（951-972°C），而髙镁值角闪石具最高结晶温度（991-1013°C）。角闪石的结晶深度特征有所不同：低镁值角闪石的结晶深度最浅（19-30km），髙镁值角闪石的结晶深度较深（22-39 km），反而中镁值角闪石结晶深度最深（27-41 km）。斜长石-熔体温压计给出的斜长石结晶温度和深度分别为883-910°C及1-20km。 值得一提的是单斜辉石核部的结晶深度位于研究区莫霍面之下。同时，单斜辉石的环带与髙镁值角闪石具有相似的结晶温度和深度，而斜长石及共生的低镁值角闪石具有相似的结晶温度。因此可以推测，Cerro Bayo岩盘之下，发育一个自莫霍面之下开始的多层岩浆上涌系统。而岩石学和地球化学的证据还表明在岩浆发育过程中岩浆分化结晶和岩浆重注和混合作用并存。
En lakkolit är en grund magmaficka och en vanligt förekommande del av en vulkan, vilken kan bilda en länk mellan djupa magmatiska aktiviteter och vulkanutbrott. Forskning om kompositionen och bildandet av grunda magmafickor kan hjälpa till att öka förståelsen om geologiska faror och naturresurser. Vid Cerro Bayo exponeras en grund magmakammare vilken utgör en del av Chachahuén vulkankomplexet i Argentina. Det här projektet fokuserar på det magmatiska lagringssystemet och magmautvecklingen vid Cerro Bayo. Magmasammansättningen och magmakammarens förhållanden såsom tryck, temperatur och vattenhalt samt vattensystemets struktur är viktiga faktorer som styr magmatiska processer. För att förstå magmautvecklingen under Cerro Bayo inleddes projektet med en kompositionsanalys av bergprover och mineral. Därefter genomfördes termobarometrisk modellering för att bestämma temperatur- och tryckförhållandena för kristalliseringen av mineraler i det magmatiska systemet. Resultaten av modelleringen tyder på att ett magmatiskt rörsystem av flera nivåer existerar under Cerro Bayo lakkoliten. Det djupaste magmamagasinet ligger på 44-50 km och når upp till 22-41 km i nedre jordskorpan, medan de grunda reservoarerna av magma ligger på ett djup av 2-20 km i övre jordskorpan som slutligen når den grunda magmafickan. Vidare indikerar analysen av mineralstruktur och mineralkemi processer av fraktionerad kristallisering samt påfyllning och blandning av magma under magmautvecklingen. Magman genomgick fraktionerad kristallisering under rörelser uppåt från de djupaste magmakammarna. Magmans temperatur varierar från högre än 1100 ° C till ~ 900 ° C. Ansamlingar av magma fortsatte att fylla på magmamagasin i nedre och övre jordskorpan. Blandning av magma inträffade när en ansamling varmare magma rörde sig från nedre till övre jordskorpreservoarer och påverkade såväl migrering av magma som placeringen av Cerro Bayo lakkoliten
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Nääs, Erika, and Marcus Olsson. "Viscosity and Crystal Size Distribution Comparison Between Different Areas in the Cerro Bayo Cryptodome." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-384282.
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Rojas, Puelles Carlos Alberto. "Magnetometría terrestre de alta resolución y polarización inducida en la búsqueda de sistemas de vetas mineralizadas en Laguna Verde, región de Aysén, Chile." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/151861.
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Magíster en Ciencias, Mención GeofísicaEn este trabajo de tesis se realiza una exploración de magnetometría en laguna Laguna Verde, Chile Chico, Región de Aysén, para encontrar indicadores de la presencia de vetas, estructuras he intrusivos en su cuenca. Esta exploración es de interés particular de la empresa minera Cerro Bayo que en la actualidad explota recursos minerales en un costado de la laguna mencionada anteriormente. Además se complementa con algunas tomografías de resistividad eléctrica (resistividad aparente y polarización inducida), en lugares particulares seleccionados luego de la interpretación magnetométrica. La exploración realizada en este trabajo se divide principalmente en cuatro partes: factibilidad de la aplicación del método magnetométrico, midiendo errores que pueden ser encontrados en los datos adquiridos por factores del entorno o del trabajo de terreno mismo ; Logística y adquisición de datos en función del análisis anterior, en particular definir una estrategia concreta para realizar las mediciones; procesamiento de datos donde se aplican las correcciones clásicas para este tipo medición, además de aplicar las transformaciones y filtros habituales para respaldar el proceso de interpretación; interpretación de datos procesados en función de un contexto geológico definido. Como resultado de esta exploración se presentan una amplia serie de mapas de anomalías de contraste magnéticas proyectadas por sobre la topografía y el mapa geológico de la zona (perteneciente a Cerro Bayo), además de los correspondientes filtros y transformaciones. En el caso de la Tomografía de resistividad eléctrica, se presentan los modelos procesados e invertidos de resistividad y cargabilidad. Se concluye que la magnetometría de alta densidad a pequeña escala resulta, en el contexto de información, comparable a la aplicación clásica del método (aeromagnético a gran escala). Particularmente se pueden apreciar respuestas de anomalías de contraste magnéticas similares en zonas de vetas que ocurren también en otras zonas, convirtiendo a estas últimas en zonas de blancos de exploración, además de lineamientos e intrusiones en varias zonas de la cuenca de la Laguna que tienen expresión topográfica y/o batimétricas que las justifique (como islas), así como también otras respuestas aisladas desconocidas y abiertas a interpretación.
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Chinchón, Escobar Juan Ignacio. "Documentos sobre inclusiones fluidas V: Caracterización petrográfica y textural del distrito epitermal de Cerro Bayo, XI Región, Chile." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/151289.
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GeólogoLa estrecha relación entre mecanismos de ebullición de fluidos hidrotermales, y depositación de metales base y preciosos ha sido documentada ampliamente por numerosos autores. Análisis petrográficos texturales y de inclusiones fluidas son capaces de revelar eventos de ebullición, y, por ende, se constituyen como una herramienta eficaz a la hora de delimitar posibles cuerpos de mena en un prospecto. Esta investigación tiene como propósito principal establecer criterios de exploración en el distrito epitermal de Ag-Au de Cerro Bayo, ubicado en la Región de Aysén, Chile. La investigación se plantea como un ejemplo, extrapolable a otros depósitos epitermales de metales preciosos, en el cual se pretende faciliar el desarrollo de las actividades exploratorias, mediante la identificación de posibles sectores y/o vetas económicamente interesantes en el distrito minero por medio de una metodología relativamente rápida y barata. El estudio revela la presencia de una amplia gama tanto de texturas de ebullición como de no ebullición en el distrito. La textura rompecabezas es ubicua en el distrito; le siguen en abundancia, la textura coloforme y de calcita hojosa y calcita hojosa reemplazada por cuarzo. La petrografía de inclusiones fluidas mostró arreglos de inclusiones fluidas secundarias ricas en líquido en coexistencia con ricas en vapor tanto en cuarzo euhedral como en fluorita, indicadoras de procesos de ebullición, así como secundarias ricas en vapor, indicadoras de procesos de vaporización violenta del fluido. Adicionalmente se reconocen eventos mineralizadores en ambas vetas, caracterizados por asociaciones de cuarzo rompecabezas con pirita con inclusiones de electrum, menor esfalerita y calcopirita; y adularia en asociación a pirita, acantita, electrum, esfalerita, arsenopirita, y magnetita. De lo anterior, se infiere que la ebullición de fluidos hidrotermales juega un rol fundamental en la precipitación de metales preciosos en el distrito de Cerro Bayo. Sólo los fluidos tardíos, registrados en fluorita, pudieron ser caracterizados mediante microtermometría. Estos poseen temperaturas en el rango 225 - 130°C, con salinidades entre 12% y 5% en peso NaCl eq. Las elevadas concentraciones de Cl detectados por métodos semicuantitativos indicarían que los complejos clorurados pudieron ser importante en el transporte metálico. Por último, a partir de la asociación mineralógica y textural, y tomando como referencia el modelo epitermal de Buchanan, se concluye que el sector de Laguna Verde es prometedor para la industria minera, el horizonte de ebullición se hallaría relativamente cercano a la superficie, con lo cual una zona de bonanza de altas leyes de Au y Ag podría hallarse aún preservada en profundidad.
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Gómez, Perales María José. "Reflexiones interculturales germano-españolas en los relatos de viaje de los científicos E. A. Rossmässler y J. Ezquerra del Bayo." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/86141.
Full textAbstract:
German-Spanish Intercultural Reflections in Travel Narrative by the Scientists E.A. Roßmäßler and J. Ezquerra del Bayo
Abstract
The present doctoral dissertation analyses the travel narrative by the German naturalist E.A. Roßmäßler Reise-Erinnerungen aus Spanien (1854) and the travel diary by the Spanish engineer J. Ezquerra del Bayo Viage científico y pintoresco por Alemania (1847) from an intercultural and comparative perspective.
The main objective of this study has been to determine the degree of permanence of the Spanish and German stereotypes transmitted through written tradition in the German travel narrative about Spain and in the Spanish travel narrative about Germany in the first half of the 19th century. To this end, most of this research has been devoted to the enquiry about the origin of the stereotypes about Germany and Spain, which had existed throughout the centuries. Taking as the theoretical framework for this dissertation the notion of national stereotypes in related intercultural studies, we have analysed the presence or absence of some of the attributes stereotyped in the travel literature of the first half of the 19th century.
Within the framework of travel narrative studies, considered as a literary genre, we have specifically focused on classifying the different publications according to a historical period, but also by taking into account their formal aspects, the text type, their structure and the motivations for undertaking a travel. Moreover, much attention has been paid to the topics dealt with, as well as the style and the tone used in the travel narrative under study. Starting from the premise that in this type of narrative the author and the narrator have the same identity or, at least, there is a mutual understanding between them, we have aimed to determine to what extent their biographical aspects such as the profession, social status, religion, age, origin, as well as the political ideology had impact on their intercultural perspective.
Furthermore, we have looked into the different topics that are dealt with in this type of narrative, namely means of transport, travel routes, accommodation, weather, landscape, and people's physical appearance and personality, in order to find out if the authors of the narrative analysed adopted a more objective standpoint in their intercultural reflections, or, if they were equally influenced by the image and the 19th century's stereotypes about Germany and Spain.
As a result of this analysis, it can be argued that despite a clear scientific motivation of the travel, as it is reflected by the objective descriptions in Ezquerra's and Roßmäßler's narrative, the spirit encouraging Roßmäßler was clearly romantic, while in the case of Ezquerra, it was customary. In this sense, the German naturalist addressed potential readers from the perspective of a hetero-stereotype created about Spain from the assumptions of Romanticism, while Ezquerra used a humorous, ironic, and in general, satiric tone, so common in the Spanish press and in the Spanish society at that time. The author used that tone to describe the German social reality adopting a truly personal concise style.Reflexiones interculturales germano-españolas en los relatos de viaje de los científicos E.A. Roßmäßler y J. Ezquerra del Bayo Resumen La presente tesis doctoral analiza el relato de viaje del naturalista alemán E. A. Roßmäßler Reise-Erinnerungen aus Spanien (1854) y el diario de viaje del ingeniero español J. Ezquerra del Bayo Viage científico y pintoresco por Alemania (1847) desde una perspectiva intercultural y comparativa. Uno de los objetivos generales de este estudio ha sido determinar qué grado de pervivencia existe de los estereotipos españoles y alemanes transmitidos a través de la tradición escrita en los relatos de viaje de alemanes en España y de relatos de viaje de españoles en Alemania en la primera mitad del siglo XIX. Para ello hemos dedicado gran parte de nuestra investigación a conocer el origen de esos estereotipos preexistentes a lo largo de los siglos. Partiendo de la base teórica que incluye los estereotipos nacionales en los estudios sobre interculturalidad, hemos investigado la presencia o ausencia de algunos de esos atributos estereotipados en los relatos de viaje de la primera mitad del siglo XIX. Tomando como marco teórico las investigaciones relativas a la literatura de viajes como género literario, ha sido uno de nuestros objetivos específicos adscribir las diferentes obras tratadas a una época determinada atendiendo a los aspectos formales, como el tipo de texto, la estructura del mismo y el motivo del viaje. Así mismo hemos prestado atención al contenido de los temas tratados y al estilo o tono empleado en las obras objeto de estudio. Partiendo de la premisa de que en el relato de viaje el autor y el narrador están identificados o al menos existe una connivencia entre ellos, hemos querido determinar qué incidencia tienen y qué rol desempeñan los aspectos biográficos, como la profesión, el estatus social, la confesión religiosa, la edad o la procedencia geográfica, así como la ideología o inclinación políticas en la manera de mirar y asimilar la realidad desde una perspectiva intercultural. Nos hemos preguntado al analizar los diferentes temas que aparecen en este tipo de textos (medios de transporte, estado de los caminos, alojamientos, clima, paisaje, fisonomía y carácter), si en las obras objeto de estudio los autores participan de una mayor objetividad en sus reflexiones interculturales o si éstas están igualmente influidas por la imagen y los estereotipos vigentes en el siglo XIX tanto sobre Alemania como sobre España. Como resultado de nuestra investigación hemos podido constatar que aun teniendo en cuenta el carácter científico del motivo del viaje, que aparece en descripciones objetivas tanto por parte de Ezquerra como de Roßmäßler, el espíritu sin embargo que anima las descripciones de Roßmäßler es romántico, mientras que el que se desprende del relato de Ezquerra es costumbrista. En este sentido, el naturalista alemán se dirige al potencial lector desde el heteroestereotipo creado sobre España desde los supuestos del Romanticismo. Ezquerra, por su parte, demuestra en su relato conocer bien el tono jocoso, irónico, en general satírico, que era habitual en la prensa española de la época -y creemos que también de forma general en la sociedad- y se sirve de él para transmitir la realidad social alemana desde un personal laconismo.
Reflexions interculturals germano-espanyoles en els relats de viatge dels científics E. A. Roßmäßler i J. Ezquerra del Bayo Resum La present tesi doctoral analitza el relat de viatge del naturalista alemany E. A. Roßmäßler Reise-Erinnerungen aus Spanien i el diari de viatge de l'enginyer espanyol J. Ezquerra del Bayo Viage científic i pintoresc per Alemanya des d'una perspectiva intercultural. Un dels objectius generals d'aquest estudi ha estat determinar quin grau de pervivència existeix dels estereotips espanyols i alemanys transmesos a través de la tradició escrita en els relats de viatge d'alemanys a Espanya i de relats de viatge d'espanyols a Alemanya en la primera meitat del segle XIX. Per això hem dedicat gran part de la nostra investigació a conéixer l'origen d'aquests estereotips preexistents al llarg dels segles. Partint de la base teòrica que inclou els estereotips nacionals en els estudis sobre interculturalitat, hem investigat la presència o l'absència d'alguns d'aquests atributs estereotipats en els relats de viatge de la primera meitat del segle XIX. Prenent com a marc teòric les investigacions relatives a la literatura de viatges com a gènere literari, ha estat un dels nostres objectius específics adscriure les diferents obres tractades a una època determinada atenent els aspectes formals, com el tipus de text, l'estructura d'aquest i el motiu del viatge. Així mateix hem prestat atenció al contingut dels temes tractats i l'estil o to emprat en les obres objecte d'estudi. Partint de la premissa que en el relat de viatge l'autor i el narrador estan identificats o almenys hi ha una connivència entre ells, hem volgut determinar quina incidència tenen i quin rol juguen els aspectes biogràfics, com ara la professió, l'estatus social, la confessió religiosa, l'edat o la procedència geogràfica, així com la ideologia o la inclinació polítiques en la manera de mirar i assimilar la realitat des d'una perspectiva intercultural. Ens hem preguntat en analitzar els diferents temes que apareixen en aquest tipus de textos (mitjans de transport, estat dels camins, allotjaments, clima, paisatge, fesomia i caràcter), si en les obres objecte d'estudi els autors participen d'una major objectivitat en les seues reflexions interculturals o si aquestes estan igualment influïdes per la imatge i els estereotips vigents en el segle XIX tant sobre Alemanya com sobre Espanya. Com a resultat de la nostra investigació hem pogut constatar que, tot i tenint en compte el caràcter científic del motiu del viatge, que apareix en descripcions objectives tant per part d'Esquerra com de Roßmäßler, l'esperit, però, que anima les descripcions de Roßmäßler és romàntic, mentre que el que es desprén del relat d'Ezquerra és costumista. En aquest sentit, el naturalista alemany es dirigeix al potencial lector des de l'heteroestereotip creat sobre Espanya des dels supòsits del Romanticisme. Ezquerra, per la seua banda, demostra en el seu relat conéixer bé el to jocós, irònic, en general satíric, que era habitual en la premsa espanyola de l'època -i creiem que també de forma general en la societat- i se serveix d'aquest per transmetre la realitat social alemanya des d'un personal laconisme.
Gómez Perales, MJ. (2017). Reflexiones interculturales germano-españolas en los relatos de viaje de los científicos E. A. Rossmässler y J. Ezquerra del Bayo [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/86141
TESIS
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Boetsch, Hevia Magdalena. "Control estructural de la mineralización argento-aurífera y criterios de exploración en el distrito Cerro Bayo, región de Aysén, Chile." Tesis, Universidad de Chile, 2014. http://www.repositorio.uchile.cl/handle/2250/116325.
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Magíster en Ciencias, Mención GeologíaGeóloga
Desde la década de 1940 se ha reconocido la importancia de los sistemas de fallas como estructuras que hospedan mineralización. Esta tesis busca establecer las relaciones estructurales entre los procesos de deformación y de mineralización de plata y oro, para determinar blancos de exploración en el Distrito Cerro Bayo (DCB), región de Aysén, Chile. El área en estudio se ubica en el sector Laguna Verde del DCB, donde afloran las secuencias volcánicas del miembro inferior de la Formación Ibáñez de edad Jurásico (154 144 Ma). Éstas hospedan las vetas de cuarzo subverticales con mineralización de plata y oro (114 111 Ma), emplazadas en un ambiente epitermal de baja a intermedia sulfuración a través de sistemas de fracturas con orientación N S a NO SE. Sistemas de fallas con orientación NE SO a E O cortan las secuencias mineralizadas con desplazamientos principalmente normales, y menores componentes de rumbo, que habrían provocado una caída de los bloques occidentales al este de Laguna Verde. En las inmediaciones de Laguna Verde se estima que la orientación del eje de apertura principal del sistema de vetas (T), equivalente el eje mínimo de deformación (σ3), es horizontal y presenta una orientación de N57°E. Esta apertura fue definida según la actitud y potencia de las vetas. La orientación de apertura no habría variado para el sistema hidrotermal sincrónico y posterior a la mineralización de plata y oro. Esto permite determinar que las vetas principales presentan orientaciones de N33°O ± 10°, y las vetas secundarias presentan orientaciones entre N69°O N43°O y N23°O N11°E. Estas orientaciones permiten determinar siete zonas probablemente mineralizadas con plata y oro dentro del DCB, las que se establecen a partir de un análisis geométrico de fotolineamientos en las secuencias volcánicas de la Formación Ibáñez del DCB. Éstas se enumeran del 1 al 7, donde 1 corresponde a la que presenta una mayor frecuencia y largo de lineamientos asociados a la apertura principal. Estudios anteriores de inclusiones fluidas proponen que el sector Laguna Verde es el más erodado del distrito. Esto, junto al comportamiento de las fallas NE SO, indica que al oeste de Laguna Verde la mineralización de plata y oro, debería encontrarse más somera.
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Kwazu, Fidelis Chineme Bayo [Verfasser]. "Developing a Viable Strategy of Solving the Problems of Poverty in the Light of Human Rights : A Case Study of Igboland in Nigeria / Fidelis Chineme Bayo Kwazu." Frankfurt : Peter Lang GmbH, Internationaler Verlag der Wissenschaften, 2013. http://d-nb.info/1045173118/34.
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Yitbarek, Baye Andarge. "Hydrogeological and hydrochemical framework of complex volcanic system in the Upper Awash River basin, Central Ethiopia : with special emphasis on inter-basins groundwater transfer between Blue Nile and Awash rivers." Poitiers, 2009. http://theses.edel.univ-poitiers.fr/theses/2009/Yitbarek-Baye-Andarge/2009-Yitbarek-Baye-Andarge-These.pdf.
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Une approche utilisant plusieurs méthodes convergentes a été mise en oeuvre pour étudier le cadre hydrogéologique du système aquifère volcanique fracturé et complexe du bassin supérieur du fleuve Awash situé sur le bord du Rift éthiopien. L'écoulement des eaux souterraines et les mécanismes de recharge des différents aquifères ont été étudiés à l'aide de méthodes conventionnelles de terrain, de l'hydrochimie, de l'hydrologie isotopique et de la modélisation numérique des flux souterrains. Des relations lithohydrostratigraphiques ont été établies à partir des logs lithologiques de forages exploratoires profonds. Les résultats montrent un modèle d'écoulement et des caractéristiques hydrauliques des différents aquifères volcaniques très complexes. La corrélation litho-hydrostratigraphique indique que l'aquifère basaltique inférieur, constitué de scories poreuses et perméables, est continu tout le long depuis le Nil Bleu jusqu'à la zone étudiée. L'analyse de la variation temporelle et spatiale des échantillons d’eau provenant d'endroits différents a révélé des interactions nettes entre l'eau souterraine et l'eau superficielle. De nouvelles évidences des transferts d'eau inter-bassins sont apparues. Deux aquifères basaltiques régionaux (l'aquifère supérieur et l'aquifère inférieur) ont été identifiés, montrant des signatures hydrochimiques et isotopiques bien distinctes. Dans la partie sud de la zone étudiée, l'aquifère supérieur et l'aquifère inférieur forment un système aquifère régional non confiné. Dans les parties nord et centrale du bassin au contraire, il apparaît que les deux systèmes sont séparés par un aquiclude régional, donnant lieu par endroits à des puits artésiens. Les eaux souterrainex provenant des puits d'exploration profonds (plus de 250 m) pénétrant l'aquifère basaltique inférieur et des puits situés au sud se sont révélées modérément mineralisées (TDS 400-650 mg/l), avec une composition isotopique stable, relativement moins enrichie et avec presque pas de tritium. Par contre, l'aquifère supérieur superficiel a une concentration ionique moins importante, davantage enrichie isotopiquement. Les résultats des différentes méthodes montrent clairement qu'il existe un transfert d'eau souterraine du nord du bassin adjacent du Nil Bleu vers le bassin supérieur du fleuve Awash. Les résultats convergent également pour attester de l'origine commune de la recharge et de la continuité hydraulique de l'aquifère basaltique inférieur exploité par des forages. Ceci peut avoir des implications pratiques capitales car l'existence d'importantes ressources d'eau souterraine en profondeur peut résoudre les problèmes d'approvisionnement de nombreuses villes, y compris la capitale, Addis Ababa. Ces résultats pourront aussi contribuer à mettre à jour d'autres aquifères régionaux le long des limites du rift dans des zones ayant une structure hydrogéologique similaire à celle du bassin supérieur du fleuve AwashIntegrated approach has been used to investigate the hydrogeological framework of a complex fractured volcanic aquifer system in the Upper Awash river basin located at the western shoulder of the Ethiopian rift. The groundwater flow system and mechanism of recharge of different aquifers have been studied using conventional hydrogeological field investigations, hydrochemistry, isotope hydrology and numerical groundwater flow modeling techniques. Litho-hydrostratigraphic relationships were constructed from lithologic logs obtained from exploratory drilling of deep boreholes. The result indicates quite complex flow pattern and hydraulic characteristics of the different volcanic aquifers. The litho-hydrostratigraphic correlation indicates that the permeable and porous scoraceous lower basaltic aquifer is extended laterally all the way from the Blue Nile Plateau to the study area. . The analysis of the temporal and spatial variation of water samples from different places revealed clear undwater-surface water interactions. New evidences have also emerged on the inter-basin groundwater transfer. Two distinct regional basaltic aquifers (Upper and lower) are identified showing distinct hydrochemical and isotopic signatures. In the southern part of the study area the upper and lower aquifers form one unconfined regional aquifer system. In the northern and central part of the basin, it appears that the two systems are separated by regional aquiclude forming confined aquifers, in places with artesian wells. The groundwater from the deep exploratory wells (>250m) tapping the lower basaltic aquifer and wells located in the south were found to be moderately mineralized (TDS: 400-600 mg/l), with relatively depleted stable isotope composition and with almost zero tritium. In contrast, the upper shallow aquifer has lesser ionic concentration, more isotopically enriched. Evidences from the different methods clearly indicate inter-basin groundwater transfer from the Blue Nile basin to the Upper Awash basin. The evidences also converge to testify common origin of recharge, presence of hydraulic connectivity for systems tapping the lower basaltic aquifer. This has enormous practical implication in finding large groundwater reserve at a greater depth that can solve the current water supply problems of the community including the capital Addis Ababa. It will also have important role in finding more regional aquifers along the plateau-rift margins in many areas having similar hydrogeological setup as the study area
Books on the topic "Bayo"
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Yupanqui, Atahualpa. Cerro Bayo. San Luis, [Argentina]: Universidad Nacional de San Luis, 2005.
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1945-, Bayo Natalio, ed. Natalio Bayo: La pintura interminable. [Zaragoza]: Mira, 2008.
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Bandrés, Luis J. García. Natalio Bayo: Pinturas, dibujos y grabados. Zaragoza: Ediciones Oroel, 1987.
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Bayo Marín: Entre luces y sombras. [Teruel]: Instituto de Estudios Turolenses, 2010.
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1941-, Hall Chipman, ed. Bayo: Originally published under the title Lightly. Toronto: McClelland and Stewart, 1986.
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Campana, Jorge. Servando Bayo: Santa Fe, una época, un gobernador. Santa Fe, Argentina: Ediciones Culturales Santafesinas, 2006.
Find full textBook chapters on the topic "Bayo"
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Kennish, Michael J. "Coastal Bays." In Encyclopedia of Estuaries, 130. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-8801-4_48.
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Linger, Alexander. "Remembering Babo." In Considering Religions, Rights and Bioethics: For Max Charlesworth, 23–36. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18148-2_3.
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Weik, Martin H. "bay." In Computer Science and Communications Dictionary, 111. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_1421.
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Charles, Denys J. "Bay." In Antioxidant Properties of Spices, Herbs and Other Sources, 181–87. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4310-0_12.
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Gooch, Jan W. "Bay." In Encyclopedic Dictionary of Polymers, 70. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_1141.
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"Ciro Bayo: lexicógrafo del español boliviano." In Lexicografías iberorrománicas: problemas, propuestas y proyectos, 31–48. Vervuert Verlagsgesellschaft, 1998. http://dx.doi.org/10.31819/9783954879960-003.
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"Ciro Bayo: lexicógrafo del español boliviano." In Diccionarios, 31–48. Vervuert Verlagsgesellschaft, 2002. http://dx.doi.org/10.31819/9783954879977-003.
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"Early Life History of Fishes in the San Francisco Estuary and Watershed." In Early Life History of Fishes in the San Francisco Estuary and Watershed, edited by Stephen M. Bollens and Alison M. Sanders. American Fisheries Society, 2004. http://dx.doi.org/10.47886/9781888569599.ch2.
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<em>Abstract.</em>—Pacific herring <em>Clupea pallasi </em>is a commercially and ecologically important fish with a sizable stock that spawns and spends its early life history in the San Francisco Estuary (SFE). Yet very little is known about the basic ecology of larval Pacific herring in the SFE. We undertook a 3-year field study (1999–2002), focused on winter and spring collections in two regions of the SFE (the Central and San Pablo bays), to address three objectives: (1) determine seasonal abundance patterns of larval Pacific herring in the two bays, (2) examine the diet of larval Pacific herring, and (3) evaluate the condition of larval Pacific herring in the two bays. Pacific herring were a conspicuous component of the winter larval fish assemblage in both the San Pablo and Central bays, comprising a maximum of 22.5% and 5.5% of total abundance, respectively. Larval Pacific herring abundance peaked in February or March of each year, reaching a maximum density of 2.53/m<sup>3 </sup>(San Pablo) and 0.52/m<sup>3 </sup>(Central Bay). Length frequency distributions suggested that at least 2–3 cohorts were produced each year, with some evidence that larvae were slightly larger in San Pablo Bay. Larval Pacific herring fed on a broad range of prey types, including tintinnids, copepodids, copepod nauplii, diatoms, and gastropod veligers. The unusually high proportion of tintinnids in the diet (87% by number in March 2001) suggests an important protozoan–metazoan linkage. Condition of larvae was assessed by analyses of covariance of a “growth sensitive” variable (i.e., body weight, anal body depth, or pectoral body depth) regressed against a “growth insensitive” variable (i.e., standard length). These results showed marked differences between the bays: in Central Bay, early (small) larvae exhibited better condition, but within San Pablo Bay, larvae exhibited a greater rate of improved condition with increasing age (size). This suggests the possibility of important differences in the Central and San Pablo bays as larval Pacific herring nursery grounds. Several areas of future research on the ecology of larval Pacific herring in SFE are recommended (e.g., coupling between horizontal and vertical distributions and advective flow fields, predation, and feeding dynamics on protozoan versus metazoan prey).
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Soto, María-Victoria, Misael Cabello, and Joselyn Arriagada-González. "Current Geodynamics and Evolutionary Trends of a Headland Bay Beach System in the Semi-Arid Coast of Chile." In Coastal Environments. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94967.
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The Chilean coast is controlled by the tectonics and structure, generating an irregular coastal landscape, with bays, marine terraces, sandy and gravel beaches, sand dune fields and Andean slopes, forming some mega cliffs that are attacked by waves. The Chilean coastline is shaped by headland bay beaches, with a dynamic coast modeled by south-western winds and south–north longshore current. We analyzed the case of the Coquimbo mega headland bay beach, which consists of four headland bay beaches. A methodological study was carried out on the morphometric parameters of the shoreline and the types of beaches dominated by waves along with geomorphological analysis of the coastal zone. We observed a mass transfer process from south to north. The northern sections of the bays are the places with the densest sand dune fields. This concentration of dunes occurs in each bay individually and in the mega bay as well. The sedimentary supply comes from Andean catchments to the shoreline and is transported and reworked by the longshore current to the northern area, where a huge sand field dune has developed, 120 km away from the mouth of Limarí River, the most southern catchment in the study area. In the mega bay, the current trend is a continuous sedimentary supply, despite the semi-arid conditions and the extreme drought that has affected the area since 2011. The study area is also a popular destination in Chile for beach tourism and is a place of interest for the mining industry.
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"Shark Nursery Grounds of the Gulf of Mexico and the East Coast Waters of the United States." In Shark Nursery Grounds of the Gulf of Mexico and the East Coast Waters of the United States, edited by REBEKA R. MERSON and HAROLD L. PRATT. American Fisheries Society, 2007. http://dx.doi.org/10.47886/9781888569810.ch3.
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<em>Abstract.</em>—Historically, primary nursery (pupping) grounds of the sandbar shark <em>Carcharhinus plumbeus </em>along the U.S. East Coast extended as far north as Great South Bay, Long Island, New York. We conducted gill-net and hook-and-line surveys during July and August 1996, in coastal bays of New Jersey and New York, to investigate whether these historical nursery areas were still utilized by sandbar sharks. No sandbar sharks were caught in Great South Bay, Shinnecock Bay, or Peconic Bay, New York or in Barnegat Bay, New Jersey. Seventeen sandbar sharks measuring 42– 52 cm fork length (47–62 cm total length) were captured in Great Bay, New Jersey; all sandbar sharks had unhealed umbilical scars and 35% carried umbilical cord remains, indicative of recent birth. Sharks were tagged and released. Three of these sharks were recaptured (18% recapture rate); one sandbar shark was recaptured in Great Bay 3.7 km from the release location, and two sharks were recaptured the following March off Cape Hatteras, North Carolina by commercial fishermen in the same gill-net set. In conclusion, the results from this study indicate that Great Bay, New Jersey continues to be a primary nursery ground for the sandbar shark, and the study results also contribute to the understanding of migratory patterns for this species.
Conference papers on the topic "Bayo"
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Mora, F., S. Espinach, S. Koch, G. Ballester, and M. Varas. "New High Risk Deep Opportunities in a Mature Field, Desfiladero Bayo, Mendoza, Argentina." In 78th EAGE Conference and Exhibition 2016. Netherlands: EAGE Publications BV, 2016. http://dx.doi.org/10.3997/2214-4609.201600745.
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Seguy, N., P. Joli, Z. Q. Feng, and M. Pascal. "A Modular Dynamic Model for Multibody System Adapted to Interactive Simulation." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48311.
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This paper presents a modular model of rigid multibody system using the acceleration-based augmented Lagrangian formulation. An important effort on the formulation of the governing equations has been made in order to meet the requirements for interactive simulation in computer aided design. Each body has been considered as an independent numerical component with its own numerical parameters, own mechanical parameters and own numerical integration scheme. Non-holonomic and holonomic constraints have been implemented in this formulation. This present work can be considered as an extended formulation of Bayo et al. [1] to the problem of interactive design and particular attention is paid to define the criteria of numerical stability.
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Mallimaci, Daniel, Mario Azcurra, and Diego Velo. "Modelado Geocelular De La Formacion Rayoso (Grupo Huitrin) En El Yacimiento Desfiladero Bayo Este, Provincia De Mendoza, Argentina." In VII Congreso de Exploracion y Desarrollo de Hidrocaburus (Simposio de Modelado Geologico). European Association of Geoscientists & Engineers, 2008. http://dx.doi.org/10.3997/2214-4609-pdb.265.3.
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Schaen, Allen, Blair Schoene, Brad S. Singer, Brian R. Jicha, John M. Cottle, and Kyle Michael Samperton. "TIMESCALES OF PLUTON EMPLACEMENT AND RHYOLITE MELT EXTRACTION FROM U-PB TIMS DATING OF ZIRCON AND 40AR/39AR THERMOCHRONOLOGY WITHIN THE RISCO BAYO-HUEMUL PLUTONIC COMPLEX." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-316786.
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Кофф, Г., G. Koff, И. Чеснокова, I. Chesnokova, О. Борсукова, O. Borsukova, О. Павленко, and O. Pavlenko. "SEISMOLOGICAL, AND GEOMORPHIC HYDROGRAPHIC TSUNAMI RISK FACTORS FOR FAR EAST COAST OF RUSSIA." In Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce3bc81a130.53815843.
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The problems of formation of the risk of a tsunami on the coast of the southern regions of the Far East Federal District. As the risk factors used features such as the relative position of the epicenters of tsunamigenic earthquakes and the coast, the underwater terrain coast, the degree of closeness of the studied bays, the presence or absence of wide beach and the first marine terraces, flowing into the characteristics of the studied coast estuaries. The factors subjected to expert estimates, taking into account their influence on the formation of the risk of a tsunami. The characteristics of the underwater topography, location in relation to the shores and bays of the epicenters of tsunamigenic earthquakes are estimated as zonal factors. Characteristics of marine terraces and river valleys are treated as local risk factors. For the first time for the coasts of Primorye and Khabarovsk area made of consequences of historical tsunamis: the presence of the devastation on the shores endured the tsunami waves from the open sea into the rivers and beaches ships, coast erosion, as well as descriptions of eyewitnesses. Characteristics of risk assessments are preceded by the WHO as areas of possible foci of tsunamigenic earthquakes, fault description and characteristics of buildings coasts. Risk assessment of the tsunami produces by the method proposed by G. Koff et al. The following characteristics was taken into account: the nature of the underwater coastal slope, exposure, banks in relation to the tsunami, the presence of the beach or I marine terrace, the presence of river valleys in the rear of the bay, the degree of openness of the bay. Overall, Nakhodka Bay and the Vostok Bay have the same performance tsunami -28,2 points. However, within these bays be provided with separate bays, with a higher risk assessment tsunami.
Tsunami response coasts was made for these areas for the first time. Analysis of the materials allowed to identify the most tsunami zone, and to recommend the use of certain sections of the proposed development.
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Komatsu, Teruhisa, Teruhisa Komatsu, Shuji Sasa, Shuji Sasa, Shigeru Montani, Shigeru Montani, Osamu Nishimura, et al. "SATOUMI APPROACH FOR REALIZING SUSTAINABLE COASTAL USE IN A RIASTYPE BAY: A CASE OF SHIZUGAWA BAY IN SANRIKU COAST HIT BY THE HUGE TSUNAMI ON 11 MARCH 2011." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b43160c86f9.
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Rias-type bays are one of the most common coasts in Japan where aquacultures have been active due to sheltered geological shape with a deep bottom. The huge tsunami hit Sanriku Coast consisting of open rias-type bays near the epicenter facing Pacific Ocean on 11 March 2011. For recovering Sanriku Coast, it is important to include sustainability in its program. Satoumi is defined as the human use and management of coastal seas for high productivity while maintaining high biodiversity. Therefore, we proposed Satoumi approach to an open rias-type bay, Shizugawa Bay, in southern Sanriku Coast. We conducted scientific researches on mapping of coastal habitats and aquaculture facilities, hydrography, and material flows of nutrients, a minor element (Fe) and organic matters in the bay including those from the rivers and from the offshore waters. At the same time, Committee for Shizugawa Bay Management of Fishermen’s Cooperative of Miyagi Prefecture decided to decrease in aquaculture facilities for sustainable development of aquaculture. Based on these data, a physical-biological coupling model was used for calculating the number of aquaculture facilities that are suitable not only for yields but also for environments. These researches were established on strong collaborations among a fishermen’s’ cooperative, local governments and scientists. Results of this practice may help to realize sustainable coastal use of a rias-type bay.
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Komatsu, Teruhisa, Teruhisa Komatsu, Shuji Sasa, Shuji Sasa, Shigeru Montani, Shigeru Montani, Osamu Nishimura, et al. "SATOUMI APPROACH FOR REALIZING SUSTAINABLE COASTAL USE IN A RIASTYPE BAY: A CASE OF SHIZUGAWA BAY IN SANRIKU COAST HIT BY THE HUGE TSUNAMI ON 11 MARCH 2011." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b940dce4bf1.59937688.
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Rias-type bays are one of the most common coasts in Japan where aquacultures have been active due to sheltered geological shape with a deep bottom. The huge tsunami hit Sanriku Coast consisting of open rias-type bays near the epicenter facing Pacific Ocean on 11 March 2011. For recovering Sanriku Coast, it is important to include sustainability in its program. Satoumi is defined as the human use and management of coastal seas for high productivity while maintaining high biodiversity. Therefore, we proposed Satoumi approach to an open rias-type bay, Shizugawa Bay, in southern Sanriku Coast. We conducted scientific researches on mapping of coastal habitats and aquaculture facilities, hydrography, and material flows of nutrients, a minor element (Fe) and organic matters in the bay including those from the rivers and from the offshore waters. At the same time, Committee for Shizugawa Bay Management of Fishermen’s Cooperative of Miyagi Prefecture decided to decrease in aquaculture facilities for sustainable development of aquaculture. Based on these data, a physical-biological coupling model was used for calculating the number of aquaculture facilities that are suitable not only for yields but also for environments. These researches were established on strong collaborations among a fishermen’s’ cooperative, local governments and scientists. Results of this practice may help to realize sustainable coastal use of a rias-type bay.
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Han, Songlin, Shuxiu Liang, and Zhaochen Sun. "Study of Pollution Transport Based on a Dynamical System Theory in Xiangshan Bay, China." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11291.
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Understanding the characteristic of pollution transport is essential for protecting the water quality in coastal areas, or bays. Lagrangian Coherent Structure (LCS), a concept from dynamical system theory, is applied to study pollution transport in Xiangshan Bay located in the middle coast of Zhejiang Province in China with strong tidal dynamics. The LCSs of flow field are defined as the attracting or repelling material curves in Finite-time Lyapunov exponent (FTLE) fields. The FTLE fields are computed based on the velocity data of the three-dimensional, high resolution hydrodynamic model developed for Xiangshan Bay. The LCSs can reveal the accumulation or dispersion characteristics for different waters in Xiangshan Bay. Further, some particle tracking experiments were conducted to study how these curves affect pollution transport through analyzing the Lagrangian trajectories. The main transport patterns in Xiangshan Bay are given finally. The results can help optimizing the sewage draining outlets location to make the pollution leave the bay more efficiently and managing the coastal pollution.
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Barzegar, Sadegh, Mohammad Banae, Mohammad Ali Hamed, and Mohammad Qaheri Badr. "Physical Model Test of Water Intake Including Huge Pump Station and Drum Screen." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-58007.
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A physical model, built at an undistorted scale of 1:15 tested the original design of the six drum screen and nineteen cooling water pump intake connected to header bay. The capacity of origin water intake including huge pump station and drum screen is 400,000 m3/hr. The study objectives were to evaluate as-designed screen bay and pump bay performance and to propose design modifications to optimize intake flow conditions with respect to head-losses, uniformity of the approach flow, evenness of pump throat velocity distribution, and free and subsurface vortex formation. The model was built and operated in accordance with froude-number similitude. It allowed accurate representation of complex flow patterns caused by the physical geometry of the approach bay and pump bays. The major factors that can affect the selection of a concept and design development for a water intake are: a) The occurrence of dead water zones, flow separation or reverse flow b) Vortex building and air entrainment in the pump compartments c) Submerged vortices building in the pump compartments d) Low velocity area e) Strong rotational flow f) Strong cross flow appear in front of pump units g) Pre rotation in the pump suction lines. Dye injection was used to examine the stratified flow behavior along water. The existing design of the pump bays was found to produce a uniform, symmetrical flow distribution in the approach flow, weak but persistent floor and side-wall-attached submerged vortices, avoiding cross flow and reverse flow in front of the pumps and negligible swirling motion in the pump suction. Modified design includes (i) profiling low velocity area (ii) adding flow deflectors along inner walls (iii) infill area of low velocity (iv) adding suspended baffle in front of drum screens (v) adding diffuser block in front of pumps (vi) provision of floating booms in front of pumps.
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Logtenberg, Derek, Wade Grant, Paul Chan, and Emily Corcoran. "Convective Heat Transfer in CANDU Spent Fuel Racks After a Loss of Coolant." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-81461.
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The event at the Fukushima Daiichi Spent Fuel Pools (SFPs) has renewed interest in quantifying the safety margins related to loss of coolant accidents in Irradiated Fuel Bays (IFBs). Thermal-hydraulic analyses of exposed spent CANDU fuel has been limited to a small number of bundles due to its complex bundle geometry and open rack design. This paper presents a process to predict the steady state temperature and velocity of air as it passes through a rack of spent fuel using analytical models and Computational Fluid Dynamics (CFDs) techniques. The scenario acts as lower bound estimate for the effectiveness of convection during a complete loss of coolant in a fuel bay by examining the heat-up of a stand-alone rack without flow resistance of the bundles. The correct incorporation of flow resistance is a necessary step before conclusions are made about the available safety margins of irradiated fuel bays.
Reports on the topic "Bayo"
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Dummer, J. E., J. C. Taschner, and C. C. Courtright. The Bayo Canyon/radioactive lanthanum (RaLa) program. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/233350.
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Fresquez, P. R., T. S. Foxx, and L. Jr Naranjo. Strontium concentrations in chamisa (Chrysothamnus nauseosus) shrub plants growing in a former liquid waste disposal area in Bayo Canyon. Office of Scientific and Technical Information (OSTI), November 1995. http://dx.doi.org/10.2172/137438.
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Shaw, J., D. L. Forbes, J. A. Ceman, K. A. Asprey, D E Beaver, B. Wile, D. Frobel, and F. Jodrey. Marine geological surveys in Chedabucto and St. George's Bays, Nova Scotia, and Bay of Islands, Newfoundland. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1995. http://dx.doi.org/10.4095/207541.
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McAlpin, Jennifer, and Cassandra Ross. Houston Ship Channel Expansion Channel Improvement Project (ECIP) numerical modeling report : BABUS cell and Bird Island analysis. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41581.
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The Houston Ship Channel (HSC) is one of the busiest deep-draft navigation channels in the United States and must be able to accommodate increasing vessel sizes. The US Army Engineer District, Galveston (SWG), requested the Engineer Research and Development Center, Coastal and Hydraulics Laboratory, perform hydrodynamic and sediment modeling of proposed modifications in Galveston and Trinity Bays and along the HSC. The modeling results are necessary to provide data for hydrodynamic, salinity, and sediment transport analysis. SWG provided three project alternatives that include closing Rollover Pass, Bay Aquatic Beneficial Use System cells, Bird Islands, and HSC modifications. These alternatives and a Base (existing condition) will be simulated for present (2029) and future (2079) conditions. The results of these alternatives/conditions as compared to the Base are presented in this report. The model shows that the mean salinity varies by 2–3 ppt due to the HSC channel modifications and by approximately 5 ppt in the area of East Bay due to the closure of Rollover Pass. The tidal prism increases by 2.5% to 5% in the alternatives. The tidal amplitudes change by less than 0.01 m. The residual velocity vectors vary in and around areas where project modifications are made.
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Menzel, Michael, A., W. ,. Mark Ford, John, W. Edwards, and John, C. Kilgo. A comparison of levels of bat flight and foraging activity at 10 meters and 30 meters above drained Carolina bays and reference bays, prior to bay restoration. Office of Scientific and Technical Information (OSTI), August 2001. http://dx.doi.org/10.2172/819821.
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Ozdil, Taner R., Sameepa Modi, and Dylan Stewart. Buffalo Bayou Promenade. Landscape Architecture Foundation, 2013. http://dx.doi.org/10.31353/cs0580.
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Aman, Amanda, and Yalcin Yildirim. Buffalo Bayou Park. Landscape Architecture Foundation, 2019. http://dx.doi.org/10.31353/cs1580.
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Kszos, L. A., M. J. Peterson, Ryon, and J. G. Smith. Big Bayou Creek and Little Bayou Creek Watershed Monitoring Program. Office of Scientific and Technical Information (OSTI), March 1999. http://dx.doi.org/10.2172/5707.
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St-Onge, M. R., and S. B. Lucas. Geology, Joy Bay-Burgoyne Bay, Québec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/128016.
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Hodur, Richard M. Monterey Bay Sampling. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada628599.
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