Relevant bibliographies by topics / Vent

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Vent'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 April 2025

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Journal articles on the topic "Vent"

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Wu, Jing-Ying, Siou-Yan Lin, Jung-Fu Huang, Chen-Tung Arthur Chen, Jia-Jang Hung, Shao-Hung Peng, and Li-Lian Liu. "Differential feeding habits of the shallow-water hydrothermal vent crab Xenograpsus testudinatus correlate with their resident vent types at a scale of meters." Biogeosciences 20, no. 13 (July 12, 2023): 2693–706. http://dx.doi.org/10.5194/bg-20-2693-2023.

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Abstract. The shallow-water hydrothermal vents (SVs) located off Kueishan (KS) Island, Taiwan, are one of the world's most intensively studied vent systems. It has long been known that white vents (WVs) and yellow vents (YVs) differ in the color and composition of the vent plumes. The endemic vent crabs (Xenograpsus testudinatus) are abundant in both vent types, and ovigerous females migrate to the vent periphery with a distance of 100–200 m to release their offspring. However, most research on the vent crabs was associated with WV or unspecified vent areas. To increase our knowledge of the crabs dwelling in other vent types, we compared the feeding habits of the vent crabs living in WV and YV with 2 sampling months. Specifically, we examined the benthic community of WV and YV, the isotopic niche width, and protein expression patterns of the crabs from the two vents at a distance of 100 m and sampled in July and August 2010. The coverage of sessile organisms and low-mobility fauna in WV was more abundant than in YV, based on the survey in August 2010. The δ13C and δ15N values of crabs differed spatially and temporally (multivariate analysis of variance test; p<0.05). The niche width of the vent crabs from YV-August (0.88 ‰2) narrowed substantially compared to the rest, i.e., YV-July (2.94 ‰2), WV-July (2.88 ‰2), and WV-August (3.62 ‰2; p<0.05), respectively. Based on the protein expression patterns, the vent crabs exhibited three groups, i.e., WV-July and YV-July, WV-August, and YV-August, respectively. Our results indicated that the dwelling crabs were associated with their living vent, and within-vent variability was more noticeable in YV compared to WV. We suggested that vent crabs inhabit their resident vent. Even at a scale of meters, trans-vent movement is probably rare as an adaptation to minimize predation risk.
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Nike Bianchi, Carlo, Paul R. Dando, and Carla Morri. "Increased diversity of sessile epibenthos at subtidal hydrothermal vents: seven hypotheses based on observations at Milos Island, Aegean Sea." Advances in Oceanography and Limnology 2, no. 1 (June 17, 2011): 1. http://dx.doi.org/10.4081/aiol.2011.5314.

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Research on subtidal hydrothermal vent ecosystems at Milos, Hellenic Volcanic Arc (Aegean Sea), suggested that vent activity increased the species richness of sessile epibenthic assemblages. Based on 303 species found in 6 sites (3 close to vents, 3 farther away), the present paper uses correspondence analysis and species/samples curves to examine the species composition and richness of these assemblages. Differences due to vent proximity were more important than those due to bottom depth and distance from the shore. Diversity was confirmed to be higher near the vents, although none of the 266 species found at the vent sites can be considered as obligate vent-associated species. Seven different, although not mutually exclusive, hypotheses are discussed to explain the pattern of increased epibenthic species diversity at the vent sites, namely: (i) vents represent an intermediate disturbance, inducing mortality by the emission of toxic fluids; (ii) higher winter temperature allows for the occurrence of warm-water species, which add to the regional background; (iii) venting disrupts the homogeneity of the water bottom layer, increasing bottom roughness and hence habitat heterogeneity; (iv) deposition of minerals and enhanced bioconstruction by Ca enrichment increment habitat provision; (v) fluid emission induces advective mechanisms that favour recruitment; (vi) vents emit CO2, nutrients and trace elements that enhance primary productivity; and (vii) bacterial chemosynthesis add to photosynthesis to provide a diversity of food sources for the fauna.
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Zitoun, R., S. D. Connell, C. E. Cornwall, K. I. Currie, K. Fabricius, L. J. Hoffmann, M. D. Lamare, et al. "A unique temperate rocky coastal hydrothermal vent system (Whakaari–White Island, Bay of Plenty, New Zealand): constraints for ocean acidification studies." Marine and Freshwater Research 71, no. 3 (2020): 321. http://dx.doi.org/10.1071/mf19167.

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In situ effects of ocean acidification are increasingly studied at submarine CO2 vents. Here we present a preliminary investigation into the water chemistry and biology of cool temperate CO2 vents near Whakaari–White Island, New Zealand. Water samples were collected inside three vent shafts, within vents at a distance of 2m from the shaft and at control sites. Vent samples contained both seawater pH on the total scale (pHT) and carbonate saturation states that were severely reduced, creating conditions as predicted for beyond the year 2100. Vent samples showed lower salinities, higher temperatures and greater nutrient concentrations. Sulfide levels were elevated and mercury levels were at concentrations considered toxic at all vent and control sites, but stable organic and inorganic ligands were present, as deduced from Cu speciation data, potentially mediating harmful effects on local organisms. The biological investigations focused on phytoplankton, zooplankton and macroalgae. Interestingly, we found lower abundances but higher diversity of phytoplankton and zooplankton at sites in the direct vicinity of Whakaari. Follow-up studies will need a combination of methods and approaches to attribute observations to specific drivers. The Whakaari vents represent a unique ecosystem with considerable biogeochemical complexity, which, like many other vent systems globally, require care in their use as a model of ‘future oceans’.
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Kiel, Steffen. "A biogeographic network reveals evolutionary links between deep-sea hydrothermal vent and methane seep faunas." Proceedings of the Royal Society B: Biological Sciences 283, no. 1844 (December 14, 2016): 20162337. http://dx.doi.org/10.1098/rspb.2016.2337.

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Deep-sea hydrothermal vents and methane seeps are inhabited by members of the same higher taxa but share few species, thus scientists have long sought habitats or regions of intermediate character that would facilitate connectivity among these habitats. Here, a network analysis of 79 vent, seep, and whale-fall communities with 121 genus-level taxa identified sedimented vents as a main intermediate link between the two types of ecosystems. Sedimented vents share hot, metal-rich fluids with mid-ocean ridge-type vents and soft sediment with seeps. Such sites are common along the active continental margins of the Pacific Ocean, facilitating connectivity among vent/seep faunas in this region. By contrast, sedimented vents are rare in the Atlantic Ocean, offering an explanation for the greater distinction between its vent and seep faunas compared with those of the Pacific Ocean. The distribution of subduction zones and associated back-arc basins, where sedimented vents are common, likely plays a major role in the evolutionary and biogeographic connectivity of vent and seep faunas. The hypothesis that decaying whale carcasses are dispersal stepping stones linking these environments is not supported.
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Goffredi, Shana K., Shannon Johnson, Verena Tunnicliffe, David Caress, David Clague, Elva Escobar, Lonny Lundsten, et al. "Hydrothermal vent fields discovered in the southern Gulf of California clarify role of habitat in augmenting regional diversity." Proceedings of the Royal Society B: Biological Sciences 284, no. 1859 (July 19, 2017): 20170817. http://dx.doi.org/10.1098/rspb.2017.0817.

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Hydrothermal vent communities are distributed along mid-ocean spreading ridges as isolated patches. While distance is a key factor influencing connectivity among sites, habitat characteristics are also critical. The Pescadero Basin (PB) and Alarcón Rise (AR) vent fields, recently discovered in the southern Gulf of California, are bounded by previously known vent localities (e.g. Guaymas Basin and 21° N East Pacific Rise); yet, the newly discovered vents differ markedly in substrata and vent fluid attributes. Out of 116 macrofaunal species observed or collected, only three species are shared among all four vent fields, while 73 occur at only one locality. Foundation species at basalt-hosted sulfide chimneys on the AR differ from the functional equivalents inhabiting sediment-hosted carbonate chimneys in the PB, only 75 km away. The dominant species of symbiont-hosting tubeworms and clams, and peripheral suspension-feeding taxa, differ between the sites. Notably, the PB vents host a limited and specialized fauna in which 17 of 26 species are unknown at other regional vents and many are new species. Rare sightings and captured larvae of the ‘missing’ species revealed that dispersal limitation is not responsible for differences in community composition at the neighbouring vent localities. Instead, larval recruitment-limiting habitat suitability probably favours species differentially. As scenarios develop to design conservation strategies around mining of seafloor sulfide deposits, these results illustrate that models encompassing habitat characteristics are needed to predict metacommunity structure.
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BURON, I. de, and S. MORAND. "Deep-sea hydrothermal vent parasites: why do we not find more?" Parasitology 128, no. 1 (January 2004): 1–6. http://dx.doi.org/10.1017/s0031182003004347.

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While parasitism is recognized as the most common mode of existence on the planet, and hosts from virtually all ecosystems have been studied, very little is known about the parasites found in deep-sea hydrothermal vent ecosystems and even less is known about their ecology, evolution, and effects on their hosts. The purpose of this work is to offer a comprehensive review of our state of knowledge about parasitism in the deep-sea vents and to pose and address specific questions for future studies. Because the deep-sea environment itself may influence the number and types of parasites found in the vents, non-vent (below 1000 m) and vent deep-sea data were used in a comparative analysis to account for this factor as a potential major determinant of the parasite fauna in the vents. Based upon analysis of these data, it is highly likely that the reason why so few parasites are currently known from deep-sea vents, even given the low diversity of hosts in this ecosystem, is simply that their inconspicuous nature has caused them to be overlooked by vent biologists.
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Mei, Kang, Deli Wang, Yan Jiang, Mengqiu Shi, Chen-Tung Arthur Chen, Yao Zhang, and Kai Tang. "Transformation, Fluxes and Impacts of Dissolved Metals from Shallow Water Hydrothermal Vents on Nearby Ecosystem Offshore of Kueishantao (NE Taiwan)." Sustainability 14, no. 3 (February 3, 2022): 1754. http://dx.doi.org/10.3390/su14031754.

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Hydrothermal vents are one of the important sources of major or trace elements in the ocean. The elemental fluxes, however, may be dynamic due to coastal processes and hydrothermal plumes, especially in shallow-water hydrothermal vents. We collected water samples by using the trace-metal clean technique inside and outside two shallow-water hydrothermal vents (white vent: low temperature, high pH; and yellow vent: high temperature, low pH) off Kueishantao Islet, Taiwan, China via SCUBA divers. We analyzed these samples for their hydro-chemical parameters and dissolved elements (Fe, Mn, Mg, V, Cu, and Mo) thereafter. Our results show that dissolved metals’ concentrations were significantly different between the two vents, with higher Mn and Fe in the White Vent than in the Yellow Vent, likely due to the decreased affinity of the dissolved metals for particles in the white vent. We estimated the plume fluxes of dissolved metals from the hydrothermal mouth by multiplying in situ hydrothermal discharge flowrates with metals’ concentrations inside the vents, which were: 1.09~7.02 × 104 kg Mg, 0.10~1.23 kg Fe, 0.08~28 kg Mn, 33.4~306 g V, 2.89~77.7 g Cu, and 54.3~664 g Mo, annually. The results further indicate that such plumes probably have impacted nearby seawater due to coastal currents and particle desorption during transport. Furthermore, the concentrations of biogenic elements could be further modified in seawater, and potentially impact nearby ecosystems on a larger scale. Our study provides information with which to further understand metal redeployment in submarine shallow nearby ecosystems.
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Yuki, M. S., J. R. Parsons, and R. J. Krane. "An Investigation of the Passive Cooling of Table Model Television Receivers." Journal of Electronic Packaging 112, no. 4 (December 1, 1990): 279–87. http://dx.doi.org/10.1115/1.2904380.

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Economic and reliability considerations lead to the adoption of passive techniques for cooling by a combination of natural convection and radiation heat transfer. In order to facilitate the cooling by natural convection, thermal design engineers commonly incorporate vent openings in the walls of a receiver cabinet. Unfortunately, natural convection flows in complex, vented enclosures are presently not well understood and designers must employ “cut and try” methodologies to determine the sizes and locations of vent openings. Since vent openings are expensive to incorporate in consumer electronic products, it was decided to develop the techniques that would enable thermal designers to minimize the number of vent openings in a TV cabinet and maximize the effectiveness of those vents that are employed. Thus, the present study represents the first step in a rational program to develop the tools that will enable engineers to optimize the thermal design of a table model television receiver. In this initial work, experiments were performed to determine the effects of vent size and location on component cooling in a representative table model receiver. Vents were systematically blocked until the set was operated in a completely sealed condition. Measurements of component, air, and cabinet wall temperatures and the results of flow visualization experiments were used to assess the effects of various combinations of vent openings on the natural convection cooling of the receiver. Results indicate that: (1) the present design of the vent system of a representative, commercially available table model television receiver is adequate, but has not been optimized, and (2) significant improvements in the design of the vent could be achieved; that is, improved component cooling could be obtained with fewer vent openings. The results of this work, which should be directly applicable by thermal designers, will also serve to experimentally verify numerical models of the natural convection flows through television receivers that are currently under development.
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Li, Xiaokang, and Yongbin Yang. "Study on the Influence of Smoke Vent Arrangement on the Natural Smoke Exhaust Effect in Urban Traffic Link Tunnels." Fire 8, no. 2 (January 26, 2025): 49. https://doi.org/10.3390/fire8020049.

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Urban traffic link tunnels have a high traffic flow and fire risk, and a reasonable smoke exhaust design is significant to a tunnel’s safety. The distance between smoke vents is one of the critical parameters of smoke extraction systems. Based on Froude’s similarity principle, a 1:12 reduced-scale UTLT smoke control research experimental platform was built to experimentally study the influence of the smoke vent arrangement on the smoke exhaust effect, and a smoke mass flow prediction model was established accordingly. Results show that with the increase in the smoke vent distance, the driving force generated by the stack effect is weakened, resulting in the reduction in smoke extraction and a decrease in the efficiency of the smoke vent; the overall mass flow of the smoke vent first increases and then decreases, and a distance between the smoke vents of 20 m can achieve a better smoke exhaust effect.
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Cubelio, Sherine Sonia, Shinji Tsuchida, and Seiichi Watanabe. "New species ofMunidopsis(Decapoda: Anomura: Galatheidae) from hydrothermal vent areas of Indian and Pacific Oceans." Journal of the Marine Biological Association of the United Kingdom 88, no. 1 (February 2007): 111–17. http://dx.doi.org/10.1017/s0025315408000180.

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Two new species ofMunidopsisfrom the hydrothermal vent area, Kairei Field, Central Indian Ridge in the Indian Ocean and Forecast Vent Field, Mariana Back Arc Basin in the west Pacific are described and illustrated. Their affinities to closely related species are discussed. The number ofMunidopsisspecies associated to hydrothermal vents in the world oceans has increased to 16. The habitat of new species is briefly described and the pattern of abundance of vent associatedMunidopsisis briefly discussed.
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Dissertations / Theses on the topic "Vent"

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Libertinova, Jitka. "Vent mussel shells as indicators of environmental conditions at hydrothermal vents." Thesis, Bangor University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520066.

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Jin, Jonghwa. "Le langage poétique du vent dans "Vents" de Saint-John Perse." Aix-Marseille 1, 1996. http://www.theses.fr/1997AIX10001.

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Cette these consiste a etudier le langage poetique du vent dans vents de saint-john perse. Afin d'identifier et de degager les elements linguistiques participant a l'elaboration du champ poetique du vent, elle s'inscrit dans la perspective de l'analyse immanente de la poesie, ou le poeme est considere comme une entite autonome. La premiere partie est consacree a l'examen des outils theoriques : la poesie comme un objet symbolique; le style et la poesie ; le role du mot pour la creation poetique ; le sens resultant des interactions des segments des differents niveaux. La deuxieme partie porte sur l'analyse des reseaux semantiques mis en oeuvre dans le poeme. Au niveau de la phrase, nous observons que le vent est dote de trois semes majeurs cosmique, divin, mouvement. Au niveau du discours, trois mots force, violence et mouvement fonctionnent comme des motifs majeurs qui servent a developper le theme du vent. Dans la troisieme partie visant a analyser les structures syntaxiques et morphologiques des phrases contenant les mots du vent, nous remarquons trois choses : le mouvement dialectique de l'etre et du devenir; la construction syntaxique affectee de l'atmosphere ceremoniale; la morpho-syntaxe du pathos lequel l'emporte sur la raison. Dans la derniere partie portant sur les sonorites, nous notons que les phonemes (v), (a) jouent differents roles aussi bien au niveau local qu'au niveau global. Ils fonctionnent comme ceux qui fournissent aux contextes phoniques dont ils font partie des cadres de construction; ils jouent diverses fonctions architectoniques pour l'ensemble du poeme. De meme, nous remarquons que les phonemes (s),(f) et (r) se presentent comme ceux qui traduisent le sifflement du vent
The aim of this thesis is to study the poetic language of the wind in the poem vents by saint-john perse. In order to identify the linguistic elements which play a part in the elaboration of its poetic field, we approach the poem from a linguistic and stylistic point of view : the poem is considered as a symbolic form; it has a material existence; it is an autonomous entity. The first part consists of doing theoretical research to examine some apparatus which are particular to the language of poetry : the poem as a symbolic form; stylistic activity and poetry; the word as a linguistic unity; the meaning resulting from the complex interactions of different linguistic levels. In the second part, we search for semantic traits in the sentence. It appears that the three semantic traits are cosmic, divine and movement. Regarding discourse, the words force, violence and mouvement function as major factors for the development of the wind. In the third part, we examine the syntactic and morphological aspects of sentences which contain references to the wind. The analysis reveal three aspects : a dialectic movement of being and becoming; the character of ceremonial language; the syntax and morphology revealing the pathos leading to the exclusion of reason. In the last part, we notice that the phonemes (v), (a) contribute to the configuration of the poem at the global level and at the local level. They have architectonic functions and provide the poem with a special structural unity. The phonemes (s), (f), (r) may be looked upon as the expression of the whistling wind
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Giovanangeli, Jean-Paul. "‬Mécanismes physiques d'évolution des vagues de vent : Observations et analyse." Aix-Marseille 2, 1986. http://www.theses.fr/1986AIX22012.

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Les travaux presentes dans ce memoire ont pour principal objectif de contribuer a l'etude des mecanismes d'interaction dynamique entre le vent et la mer. Ils concernent plus particulierement des series d'experiences effectuees en site naturel et au laboratoire afin de tester la validite des divers modeles theoriques et numeriques developpes par ailleurs. Une revue critique des principales theories relatives aux processus de generation et d'amplification des vagues par le vent a ete effectuee. Une partie des travaux concerne le developpement de techniques de mesures des divers parametres physiques mis en jeu et plus particulierement des fluctuations de pression statique au sein d'une couche limite turbulente au-dessus de vagues de vent generees en soufflerie. Deux experiences ont ete effectuees en site naturel. La premiere avait pour objectif principal d'observer l'evolution de la celerite de propagation des vagues de vent au large en fonction de la frequence. Des differences notables apparaissent entre les resultats d'experience effectuees pour deux conditions oceano-meteorologiques differentes. La seconde experience a permis de suivre la reponse de l'interface air-mer et des couches marines superficielles a un coup de vent. Enfin des experiences ont ete realisees au laboratoire. Il s'agissait d'une part de preciser si le mecanisme de generation des vagues par le vent pouvait etre explique par un processus de resonance entre les mouvements de l'air et ceux de l'interface. Les caracteristiques cinematiques et dynamiques des ondes generees ont ete etudiees egalement dans le cas ou la condition de resonance n'est pas satisfaite. D'autre part, l'etude du champ turbulent de pression dans l'air au-dessus des vagues dans la zone d'amplification a ete abordee. Une premiere estimation des taux de transfert d'energie du vent aux vagues par les forces normales et tangentielles a ete effectuee
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Tsurumi, Maia. "Ecology of hydrothermal vents on three segments of the Juan de Fuca Ridge, northeast Pacific." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ62531.pdf.

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De, Angelis Marie Agatha. "Studies of microbial methane oxidation in deep-sea hydrothermal vent environments /." Thesis, Connect to this title online; UW restricted, 1989. http://hdl.handle.net/1773/11040.

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Moshtaghe, Gohari Kambiz. "Morphogenèse des moulins à vent d’Iran, techniques de gestion du vent de manière architectonique." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1079/document.

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« Le passé est un pays étranger : ils font les choses différemment là-bas » L.P. Hartly Nous avons souhaité nous pencher sur l’histoire des premiers moulins à vent. Plusieurs raisons à cela : une grande partie de l’histoire du moulin à vent demeure obscure et entre autres ; deux choses sont mal connues : la première concerne la date où le moulin à vent à axe vertical apparu pour la première fois en Iran (Perse antique), et la deuxième son évolution, les différents types de cette invention. Dernière raison justifiant la nécessité de notre recherche : il n’y a pas encore d’hypothèse claire permettant d’établir un lien entre les différents types des moulins a vent a axe vertical et présentant une chronologie datée et documentée de l’évolution des types différents, en particulier le moulin à vent à axe vertical iranien. Les sources d’énergie comme le vent – et le moulin à vent sont considérées comme une technologie médiatrice entre le vent et la société humaine. R. J. Forbes , l’historien de la technologie allemand, défendait l’idée que les « moteurs primaires » étaient la « clé de voûte de la technologie ». En utilisant comme critère ces « moteurs primaires », il distingue cinq périodes dans l’histoire de la technologie de l’humanité : l’ère de l’utilisation du muscle d’humain, l’ère de l’utilisation du muscle animal, l’ère de l’énergie fournie par l’eau, l’ère de l’énergie créée par la vapeur et l’ère de l’énergie atomique. Dans sa classification, Forbes n’a pas inclus l’ère de l’énergie du vent ; nous verrons que cette ère est le chaînon manquant entre l’ère de l’énergie hydraulique et l’ère de l’énergie fournie par la vapeur. Avec l’utilisation de l’énergie éolienne, cette ère devient par ailleurs la plus longue de l’histoire de l’utilisation des énergies. Parmi les technologies connues en matière de production d’énergie dans l’Antiquité figure la technologie du moulin à vent, qui a des liens directs avec les deux ères longues et importantes en matière d’utilisation de l’énergie : l’ère de l’énergie hydraulique et l’ère de l’énergie fournie par la vapeur. Malgré tout ce que l’on sait sur l’histoire du moulin à vent européen, l’origine et la diffusion de cette invention technique ne sont pas claires. Maurice Daumas écrit que : « L’origine et la diffusion du moulin à vent posent encore aux historiens de nombreux problèmes et de non moins nombreuses énigmes ». Il manque une chronologie des divers types de moulins à vent dans les diverses civilisations ; par conséquent, une théorie présentant cette diversité architecturale et technique dans le plateau d’Iran fait défaut encore aujourd’hui. La diffusion du moulin à vent dans le monde antique, y a compris l’Iran, pose également question. Une partie importante de cette thèse sera donc consacrée à répondre à ces questions, particulièrement en Iran, dans le but d’éclaircir autant que possible l’origine et la diffusion de cette invention architecturale et technique
"The past is a foreign country: they do things differently over there"L.P. Hartly We wanted to look at the history of the first windmills. There are several reasons for this: much of the history of the windmill remains obscure and among others; two things are poorly known: the first relates to the date when the vertical axis windmill appeared for the first time in Iran (ancient Persia), and the second its evolution, the different types of this invention. The last reason for the need for our research is that there is as yet no clear hypothesis for linking the different types of vertical wind mills with a dated and documented chronology of the evolution of types in particular the Iranian vertical axis windmill. Energy sources like the wind - and the windmill are seen as a mediating technology between wind and human society. R. J. Forbes, the German historian of technology, argued that "primary engines" were the "keystone of technology". Using as a criterion these "primary engines," he distinguishes five periods in the history of human technology: the age of human muscle utilization, the era of animal muscle utilization, the era of energy provided by water, the era of energy created by the vapor and the era of atomic energy. In his classification, Forbes did not include the era of wind energy; we shall see that this era is the missing link between the era of hydraulic energy and the era of energy supplied by steam. With the use of wind energy, this era is also the longest in the history of energy use
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Schrenk, Matthew Owen. "Exploring the diversity and physiological significance of attached microorganisms in rock-hosted deep-sea hydrothermal environments /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/10965.

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Anderson, Louise Margaret. "Hydrothermal vent fauna and fossilisation." Thesis, Royal Holloway, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404599.

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Hydrothermal vents and their associated fauna were first discovered in 1977. An unusual, diverse fauna thrives around these vents. The dynamic and unpredictable nature of volcanism, fluid chemistry and temperature around vents mean these faunal habitats remain for a maximum of -20 years. This study examines fossilisation of vent fauna from five localities of varying tectonic setting and age: the Mothra Vent Field, Endeavour Segment, Juan de Fuca Ridge; 'Feather Duster' vent site, 11oN East Pacific Rise; 'MESO' zone, Central Indian Ridge; Roman Ruins vent site, PACMANUS, eastern Manus Basin; and the Kambia massive sulphide deposit, Troodos ophiolite, Cyprus. No shelly fauna (i.e. gastropods or bivalves) were found. The majority of the fossils found were vestimentiferan tubeworm tubes. Diagnostic features for these include at least one of the following: surface striations/longitudinal ridges; internal septa and lateral flange structures. Extensive SEM and mineral mapping have highlighted specific mineral patterns on fossil worm tube surfaces for both early and late stage fossilised material. An order of mineralisation is presented for early-mineralised material. Several new and unique fmds are reported here. A specimen of a predatory (?) ammonite preserved in pyrite from a late Cretaceous vent deposit provides evidence of an additional trophic group to fossil vent communities and introduces a new, challenging palaeoenvironment for ammonites. Delicate internal septa from the interiors of fossil tubeworm tubes (preserved in silica), suggest the tubeworm Ridgeia piscesae secretes basal clumps to support its body within the tube. Previously unreported fossilised soft body parts infer either bacterial inducement of mineralisation of worm body surfaces, or protection of those surfaces by bacteria. Stable isotopes of carbon, nitrogen and sulphur were used as an additional tool for the study of both animal tissues, fossilised worm tubes and sulphide samples. Results for Ol3C and olsN of animal tissues agreed with previous work. Ol3C and Ol~ for fossilised material suggest a bacterially fractionated worm signature. 034S values for sulphides suggest a volcanic source for sulphur, with little evidence for bacterial fractionation.
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Pendlebury, Sophie Jane Dakin. "Ecology of hydrothermal vent gastropods." Thesis, University of Southampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412238.

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Landi, Simone. "Modèles cinétiques du vent solaire." Paris 7, 2001. http://www.theses.fr/2001PA077253.

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Books on the topic "Vent"

1

Roche, Hannah. Vent. Paris: Hatier, 1996.

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Molas, Oriol. Vent. Barcelona: Columna, 1992.

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Drenteln, Olga de. Vent d'octobre. Paris: O.E.I.L., 1989.

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Christel, Delcoigne, ed. Le vent. Tournai [Belgique]: Éditions Gamma, 1993.

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1964-, Winger Cecilie, ed. Audrey, vent! [Oslo]: Damm, 2008.

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Chris, Davidson, ed. Le vent. Toronto: Éditions Scholastic, 2009.

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Quintrec, Charles Le. Vent d'étoiles. Le Faouet: Liv'éditions, 1998.

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Brouillette, Marc André. Vent devant. Montréal: Éditions du Noroît, 2001.

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), Clément Frédéric (1949, ed. Vent latéral. Paris: Editions Messidor, 1989.

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L, Walker C., Dixon D. R, and Parson L. M, eds. Hydrothermal vents and processes. London: Geological Society, 1995.

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Book chapters on the topic "Vent"

1

Gooch, Jan W. "Vent." In Encyclopedic Dictionary of Polymers, 792. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_12487.

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Cataldo, Vincenzo, Jennifer Taylor, Ákos Kereszturi, and Henrik Hargitai. "Fissure Vent." In Encyclopedia of Planetary Landforms, 1–5. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-9213-9_444-1.

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Cataldo, Vincenzo, Jennifer Taylor, Henrik Hargitai, and Ákos Kereszturi. "Fissure Vent." In Encyclopedia of Planetary Landforms, 1–5. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-9213-9_444-2.

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Gooch, Jan W. "Air Vent." In Encyclopedic Dictionary of Polymers, 25. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_380.

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Cataldo, Vincenzo, Jennifer Taylor, Henrik Hargitai, and Ákos Kereszturi. "Fissure Vent." In Encyclopedia of Planetary Landforms, 766–69. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-3134-3_444.

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Tanaka, Takeyoshi. "Vent Flows." In SFPE Handbook of Fire Protection Engineering, 455–85. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-2565-0_15.

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Németh, Károly. "Rootless Cone/Vent." In Encyclopedia of Planetary Landforms, 1–7. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-9213-9_529-1.

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Gomez, Felipe. "Hot Vent Microbiology." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_76-2.

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Gomez, Felipe. "Hot Vent Microbiology." In Encyclopedia of Astrobiology, 1122. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_76.

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Gomez, Felipe. "Hot Vent Microbiology." In Encyclopedia of Astrobiology, 765. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_76.

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Conference papers on the topic "Vent"

1

Allison, C., and M. J. Robinson. "Assessment of Vented Flexible Liners for Corrosion Protection of Pipelines." In CORROSION 2011, 1–14. NACE International, 2011. https://doi.org/10.5006/c2011-11300.

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Abstract A practical difficulty of plastic liners to control internal corrosion is gas permeating and forming an annular space between the liner and pipe. A decrease in operating pressure can cause the liner to collapse, blocking the pipe. One solution is to insert vents along the liner, allowing gas to escape into the pipe during depressurization but there is concern that this would lead to excessive corrosion where the pipe wall is exposed. This paper investigates the extent of this corrosion and effectiveness of methods of control. A novel crevice corrosion cell was designed, comprising plates of X100 carbon steel and PMMA plastic, separated by a thin gasket. A small hole in the PMMA simulated a liner vent. Tests were carried out in brines saturated with carbon dioxide at 1 bar. Corrosion rates in the crevice were measured using the linear polarization resistance method on pairs of X100 electrodes, set into the plate. Corrosion rates were shown to diminish rapidly with distance from the vent, particularly when a porous frit was used to restrict mass transport of carbon dioxide. Mathematical modeling was used to explain these findings and the benefits of applying cathodic protection within the crevice are discussed.
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Rutledge, Bruce, David Hillebrandt, Ken Heindel, and Dean Wolfe. "A textile vent hoop replacement for parachute vent lines." In 16th AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2001. http://dx.doi.org/10.2514/6.2001-2041.

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"Inno-vent Egypt." In 2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS). IEEE, 2015. http://dx.doi.org/10.1109/icecs.2015.7440170.

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Jonsson, Jonas, Alberto Behar, James Bruckner, Jaret Matthews, and Kasthuri Venkateswaran. "Hydrothermal vent bio-sampler." In 57th International Astronautical Congress. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.iac-06-a1.6.04.

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Garten, Peder, Marianne Houbiers, Sverre Planke, and Henrik Svensen. "Vent complex at Heidrun." In SEG Technical Program Expanded Abstracts 2008. Society of Exploration Geophysicists, 2008. http://dx.doi.org/10.1190/1.3063767.

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Oosthuizen, Patrick H. "A Basic Numerical Study of the Effect of a Hot Air Vent on the Heat Transfer Rate From a Cold Window." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12775.

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In colder climates hot air vents are often mounted below a cold window to improve thermal comfort of the occupants. The presence of the vent alters the rate of convective heat transfer to the window and changes the air-flow pattern near the window and this has here been numerically studied. The situation considered in this study is an approximate model of most real situations. The window is represented by a plane isothermal section recessed into the wall, this window section being colder than the room air far from the window. The vent is assumed to be placed against the wall and to have a uniform discharge velocity which is normal to the vent surface. The vent has been assumed to be centrally located below the window. The flow has been assumed to be steady and both laminar and turbulent flows have been considered. The fluid properties have been assumed constant except for the density change with temperature that gives rise to the buoyancy forces, this being dealt with using the Boussinesq approach. The governing equations have solved using the commercial cfd code FLUENT, the k-epsilon turbulence model with buoyancy force effects fully accounted for having been used in the turbulent flow calculations. The solution has the following parameters: the Rayleigh number, the Reynolds number based on the vent discharge velocity, the dimensionless depth that the window is recessed, the dimensionless window-to-undisturbed-air temperature difference, the Prandtl number, the dimensionless width of the window, the dimensionless depth and width of the hot air vent, and the dimensionless vent discharge temperature-to-undisturbed-air temperature difference. Results have only been obtained for a Prandtl number of 0.7. The effects of the other dimensionless variables on the window Nusselt number and on the flow pattern and air temperature distribution near the window have been numerically determined.
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Shimomura, Eisaku, Michihiro Tatsuno, and Hidetoshi Yokoi. "Measurement of gas-vent clogging ratio using evaluation mold of gas-vent performance." In MATERIALS CHARACTERIZATION USING X-RAYS AND RELATED TECHNIQUES. Author(s), 2019. http://dx.doi.org/10.1063/1.5088300.

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Siu, J., and A. Perseval. "Effective Flare and Vent Management." In SPE Trinidad and Tobago Section Energy Resources Conference. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/180835-ms.

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Flynn, Michael, John Hines, and Chris Mckay. "Astrobiology Hydrothermal Vent Technology Development." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-2342.

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Alom, Nur, and Ujjwal K. Saha. "Determining the Optimal Location of Vent Augmenters in an Elliptical-Bladed Savonius Rotor." In ASME 2019 Gas Turbine India Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gtindia2019-2344.

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Abstract The Savonius wind turbine rotor, or simply Savonius rotor is gaining importance throughout the globe as a device to produce electric power without donating much to global warming. Although this type of conventional rotor suffers from lower efficiency, it has many important rewards like simplicity, easier manufacturability, and lower maintenance cost. This has attracted the researcher’s attention towards improving its design further. To improve the Savonius rotor performance, several blade profiles/shapes and augmentation techniques have been evolved. In this study, an effort has been made to investigate the performance of a novel elliptical blade profile by incorporating the vent-augmentation technique. The prime objective is to decrease the negative thrust of the rotor by locating the vents optimally on the blade concave surface. In view of this, the vents are created at three different positions on the blade concave surfaces. Two-dimensional (2D) unsteady simulations are performed around the vented blade profiles of the Savonius rotor using SST k-ω turbulence model by FVM based solver ANSYS Fluent. The torque and power coefficients (CT and CP) are calculated at the revolving environments. The total pressure and velocity contours are obtained and analyzed. For a direct judgement, the results are also generated for the blade profiles without vent-augmenters. The study reveals an enhancement in performance of the vent-augmented elliptical blade profile of the Savonius rotor.
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Reports on the topic "Vent"

1

Fuerst, J. D. D0 Vent Stacks. Office of Scientific and Technical Information (OSTI), January 1988. http://dx.doi.org/10.2172/1030690.

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VAN KATWIJK, C. NUPRO process vent/MCO check valve - prevent backflow from process vent into MCO. Office of Scientific and Technical Information (OSTI), July 1999. http://dx.doi.org/10.2172/797532.

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Lattin, Rebecca Renee, and David Patrick Fuehne. Evaluation of FTWC Vent System. Office of Scientific and Technical Information (OSTI), July 2020. http://dx.doi.org/10.2172/1569721.

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MISKA, C. R. NUPRO Process Vent and MCO Check Valve Prevent Backflow from Process Vent into MCO. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/804791.

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MISKA, C. R. NUPRO Process Vent and MCO Check Valve Prevent Backflow from Process Vent into MCO. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/804815.

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MISKA, C. R. NUPRO Process Vent and MCO Check Valve Prevent Backflow from Process Vent into MCO. Office of Scientific and Technical Information (OSTI), October 2000. http://dx.doi.org/10.2172/805399.

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MISKA, C. R. NUPRO Process Vent and MCO Check Valve Prevent Backflow from Process Vent into MCO. Office of Scientific and Technical Information (OSTI), October 2000. http://dx.doi.org/10.2172/805400.

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MISKA, C. R. NUPRO Process Vent & MCO Check Valve Prevent Backflow from Process Vent into MCO. Office of Scientific and Technical Information (OSTI), September 2001. http://dx.doi.org/10.2172/807334.

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Ulrich, G. B. Examination of frit vent from Sixty-Watt Heat Source simulant fueled clad vent set. Office of Scientific and Technical Information (OSTI), November 1995. http://dx.doi.org/10.2172/171347.

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Clifton, F. T. ,. Westinghouse Hanford. Preoperational test, vent building ventilation system. Office of Scientific and Technical Information (OSTI), August 1996. http://dx.doi.org/10.2172/325886.

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