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Dissertations / Theses on the topic 'Circular Formation'

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1

Siwatch, Vivek. "Modeling of NOx formation in circular laminar jet flames." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4749.

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Emissions of oxides of nitrogen (NOx) from combustion devices is a topic of tremendous current importance. The bulk of the review of NOx emissions has been in the field of turbulent jet flames. However laminar jet flames have provided much insight into the relative importance of NOx reaction pathways in non premixed combustion for various flame conditions. The existing models include detailed chemistry kinetics for various species involved in the flame. These detailed models involve very complex integration of hundreds of chemical reactions of various species and their intermediates. Hence suc
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2

Whitehead, Martina. "Synthesis of polydentate ligands and the formation of heterometallic and circular helicates." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/9643/.

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Described herein, is the synthesis and coordination chemistry of seven novel ligands L1 - L7. These ligands form metallosupramolecular assemblies upon coordination of transition metal ions resulting in heterodi- and hetreotrimetallic double helicates and penta- and tetranuclear cyclic helicates. Described in Chapter 2 is a new class of ditopic segmental pyridyl-thiazole(py-tz) N-donor ligands L1 - L3. Reaction of L1 with ZnII ions results in the formation of a dinuclear double helicate [Zn2(L1)2]4+. Reaction of L2 with either ZnII or HgII results in the formation of the L2-containing dinuclear
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3

Rullan, Jose M. "Flow Control Over a Circular Arc Airfoil by Periodic Blowing." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/10178.

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The flow over sharp-edged wings is almost always separated. The control of separated flows is possible and benefits can be achieved but only in a time average sense. A new design of an actuator was designed and tested which can achieve a wide range velocity of without frequency dependence, is free of oscillating components as well as free of secondary frequencies and therefore can be scaled up easily, unlike a traditional synthetic jet. The actuator can achieve a considerable amount of jet vectoring, thus aligning the disturbance with the leading edge shear layer. Results indicate that unstead
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4

Lee, Hua, Stephanie Lockwood, James Tandon, and Andrew Brown. "BACKWARD PROPAGATION BASED ALGORITHMS FOR HIGH-PERFORMANCE IMAGE FORMATION." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/608300.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California<br>In this paper, we present the recent results of theoretical development and software implementation of a complete collection of high-performance image reconstruction algorithms designed for high-resolution imaging for various data acquisition configurations.
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5

Shen, Wei. "Chinese student circular migration and global city formation : a relational case study of Shanghai and Paris." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/6385.

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More than 1.2 million students have left China to study abroad during the past three decades of economic reform in China. In 2007 alone, China sent around 144,000 students abroad, 167 times of the number of students in 1978. This large scale of student migration has often raised debate on brain drain , because many of these student migrants do not return to China upon graduation. However, there has been a reverse trend in the past decade as China witnessed a growing wave of return migration. More and more Chinese students are coming back to China after their studies and work abroad due to the
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6

Jakhlal, Jouda. "Photovieillissement et cancers cutanés : étude des paramètres conformationnels contrôlant la formation des adduits (6-4) de l’ADN." Thesis, Reims, 2014. http://www.theses.fr/2014REIMS004.

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Le rayonnement UV solaire induit des modifications de la structure chimique des bases nucléiques de l'ADN essentiellement au niveau de site dipyrimidinique et conduit principalement à la formation des adduits cyclobutanique et (6-4). Ces adduits sont impliqués dans le photovieillisement et le cancer cutané. Les adduits (6-4) sont potentiellement les plus dangereux en raison de leurs propriétés mutagènes intrinsèques.La conformation de l'ADN représente l'un des facteurs gouvernant la formation de l'adduit (6-4). Afin, d'identifier les paramètres structuraux favorisant sa formation, des analogue
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7

West, Shaun Eric. "Investigating Early Village Community Formation and Development at Kolomoki (9ER1)." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6602.

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In southeastern North America, the Woodland period (ca. 1000 B.C. to A.D. 1050) was arguably witness to the first early village societies, and Kolomoki—located in southwestern Georgia—is among the largest villages during this interval. Though archaeologists recognize these communities as seminal developments in the course of human history, little attention has been paid to how they develop and vary internally. This thesis seeks to address these issues by focusing on the development and social construction of the early village community at Kolomoki. The results of an excavation program carried
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8

Altavilla, Giovanni <1997&gt. "The Degeneration and Crisis of the Late Victorian Bildungsroman: the Protagonist’s Circular Development and the Failure of Formation." Master's Degree Thesis, Università Ca' Foscari Venezia, 2021. http://hdl.handle.net/10579/20316.

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Questa tesi propone uno studio della degenerazione del romanzo di formazione vittoriano come sintomo di una ridefinizione negativa dell’idea della modernità tra la metà e la seconda metà del diciannovesimo secolo inglese attraverso l’esempio di tre romanzi: Cime Tempestose (1847) di Emily Brontë, Il Velo Sollevato (1859) di George Eliot e Il Ritratto di Dorian Gray (1890-1) di Oscar Wilde. Questa tesi inizia con un’introduzione della nascita, evoluzione e caratteristiche del romanzo di formazione inglese e la sua consolidazione nell’età vittoriana, per poi marcare la sua graduale degenerazione
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9

Warner, Matthew D. "Novel peptide-based materials assemble into adhesive structures: circular dichroism, infrared spectroscopy, and transmission elect[r]on microscopy studies." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/1654.

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10

Siblini, Ali. "Optimisation des antennes MARPEM (Matrice agile rayonnantes à pixel élaborés en Meta‐matériaux) par l’utilisation de formes d’ondes spécifique." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0061/document.

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Cette thèse est basée sur un brevet réalisé chez XLIM Systèmes RF. La thèse précédente se concentre sur la partie théorique MARPEM et une certaine validation en polarisation linéaire. Dans cette thèse, nous avons visé à introduire le système MARPEM aux applications de polarisation circulaire en général et aux applications spatiales en particulier. Dans toute la thèse, MARPEM à polarité circulaire avec une architecture différente est réalisée avec la conception de circuits de polarisation et de diviseurs de puissance. On présente la formation de faisceau du motif Isoflux large avec le taux d'el
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Thomas, Jimmy. "An investigation on the formation and occurrence of spiral grain and compression wood in radiata pine (Pinus radiata D. Don.)." Thesis, University of Canterbury. Biological Sciences, 2014. http://hdl.handle.net/10092/9654.

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Radiata pine (Pinus radiata) is the most important plantation tree in New Zealand forestry, and factors that reduce the quality of wood cause significant economic loss. Two of the most important of these issues are compression wood and spiral grain. Compression wood is a type of reaction wood, formed when a tree moves away from the vertical, and is characterised by biochemical and structural changes within the wood that reduce its quality and value. Spiral grain, however, is the alignment of the wood grain in a helix around the tree’s axis and away from the vertical. Again, this reduces the s
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12

Hällqvist, Thomas. "Large Eddy Simulation of Impinging Jets." Doctoral thesis, KTH, Mekanik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3858.

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This thesis deals with Large Eddy Simulation (LES) of impinging air jets. The impinging jet configuration features heated circular jets impinging onto a flat plate. The problem addressed here is of generic nature, with applications in many engineering devices, such as cooling of components in gas turbines, in cars and electronic devices. The flow is inherently unsteady and contains relatively slowly varying coherent structures. Therefore, LES is the method of choice when the Reynolds number is large enough to exclude Direct Numerical Simulations (DNS). The present LES model is a basic model wi
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13

Takagawa, Tomohiro. "Experimental study on formative conditions of hummocky cross-stratification using circular flume." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/136833.

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14

Roulon, Thibaut. "Formation, caractérisation et applications des minicercles d'ADN." Paris 6, 2002. http://www.theses.fr/2002PA066561.

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15

Fuchs, Peter R., Renate Patzschke, Claudia Schmitz, Germán Yenque, and Jesús Briceño. "Archaeological Research at Sechín Bajo Site, Casma." Pontificia Universidad Católica del Perú, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/113518.

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Archaeological research performed at the Sechín Bajo site have yielded new data related to the origins of Andean civilization. Archaeological excavation and geophysical methods carried out to date have revealed a long history of the construction of monumental architecture that lasted about 2000 years. Three buildings have been studied so far, the oldest of which is associated with a circular sunken court; the other two reveal modifications and changes in architectural design. The "Second Building" is characterized by graffiti on an outside wall; the graffitti has a design motif reminescent of
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16

GRISOLIA, GIULIA. "Biofuels from micro-organisms: Thermodynamic analysis of sustainability." Doctoral thesis, Politecnico di Torino, 2022. https://hdl.handle.net/11583/2973986.

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17

Borrel, Géraldine. "Mécanismes de formation et de destruction des oxydes d'azote lors de la combustion du charbon en lit fluidisé circulant." Mulhouse, 1996. http://www.theses.fr/1996MULH0434.

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L'utilisation croissante des lits fluidisés pour la combustion du charbon est justifiée pour une grande partie par les faibles émissions d'oxydes d'azote, et la possibilité de capture du soufre in situ. Les réactions homogènes et hétérogènes mettant en jeu les oxydes d'azote sont très nombreuses. Pour les étudier, un petit lit fluidisé circulant chaud en quartz a été monté. Pour avoir une idée du rôle de chaque réaction dans le mécanisme global, nous avons tout d'abord étudié la réduction des nox sur diverses surfaces : cendres, résidu carbone de charbon, et chaux. Les cinétiques de destructio
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18

Fuchs, Peter R., Renate Patzschke, Germán Yenque, and Jesús Briceño. "From the Late Archaic to the Early Formative: The Research in Sechín Bajo, Casma Valley." Pontificia Universidad Católica del Perú, 2012. http://repositorio.pucp.edu.pe/index/handle/123456789/113578.

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The most recent investigations at the site of Sechín Bajo in the Casma valley resulted in the discovery of a sequence of three buildings dating from the Late Archaic to the Early Formative Periods, evidencing phases that span more than 2000 years (3500-1500 BC). The First Building comprised a simple platform that underwent numerous extensions, each phase of which received a circular sunken plaza. It was subsequently backfilled and sealed with a clay floor before the Second Building was constructed above it, expressing a change, both in its function and the way it was used. The Third Building r
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19

Ehrmann, Patrick. "Etude comparative de la formation des sillages en fonction de la forme des obstacles : application à la coque semi-circulaire." Poitiers, 1996. http://www.theses.fr/1996POIT2277.

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L'objectif de ce travail, developpe a l'aide de techniques de visualisation complementaires (traceurs discrets et continus), fut de caracteriser les influences respectives des formes des faces aval et amont d'un obstacle cylindrique sur le developpement temporel de la zone de recirculation qu'il induit dans son aval immediat, et sur l'initialisation du processus de lachage. Pour cela, dans un premier temps, les implications liees a la presence d'une face aval creuse ont ete abordees en considerant le cas de la coque semi-circulaire. Ensuite, nous nous sommes interesses successivement, au cylin
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20

Reis, Leonardo Rangel dos. "O sabor dos saberes e a poiésis das merendeiras escolares: experiências limiares na cultura e nas itinerâncias epistêmicoexistenciais das estudantes do Curso Técnico em Alimentação Escolar do IFBA." Faculdade de Educação, 2015. http://repositorio.ufba.br/ri/handle/ri/20692.

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Submitted by Leonardo Reis (leonardorangelrreis@gmail.com) on 2016-09-24T09:20:28Z No. of bitstreams: 1 TESE-LEONARDO RANGEL DOS REIS.pdf: 7732958 bytes, checksum: e146650efa6c05cfb121eedafa6148bd (MD5)<br>Approved for entry into archive by Maria Auxiliadora da Silva Lopes (silopes@ufba.br) on 2016-09-26T18:05:06Z (GMT) No. of bitstreams: 1 TESE-LEONARDO RANGEL DOS REIS.pdf: 7732958 bytes, checksum: e146650efa6c05cfb121eedafa6148bd (MD5)<br>Made available in DSpace on 2016-09-26T18:05:08Z (GMT). No. of bitstreams: 1 TESE-LEONARDO RANGEL DOS REIS.pdf: 7732958 bytes, checksum: e146650efa6c05cfb
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21

Elsayed, Ahmad Ahmad. "Conception d’antennes réseaux aux performances optimisées par la prise en compte des couplages inter-éléments : application à la formation de faisceau et à la polarisation circulaire." Limoges, 2010. https://aurore.unilim.fr/theses/nxfile/default/1ebc00a8-7170-4a99-92ab-663a59293abe/blobholder:0/2010LIMO4053.pdf.

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Les travaux contenus dans ce manuscrit s’intéressent à la synthèse de fonctions de rayonnement par l’association de plusieurs éléments rayonnants. Cette demande de synthèse tient compte des couplages entre les éléments rayonnants et du diagramme de chacun d’entre eux pour aboutir à une conception conjointe des antennes et de leur circuit de distribution. Le but est de maintenir simultanément un gain optimum, des objectifs de polarisation, ainsi que de satisfaire aux gabarits de diagramme visés. Deux applications sont développées. Une première antenne, destinée à être embarquée sur le toit d’un
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Salah, Toubeh Moustapha. "Etude d’antennes BIE planaires de hauteur très inférieure à la longueur d’onde dite : The ULP EBG Antennas." Limoges, 2011. https://aurore.unilim.fr/theses/nxfile/default/9ad79c31-e0cc-4074-a818-25d08af663a6/blobholder:0/2011LIMO4049.pdf.

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Ce mémoire est consacré à l’étude d’une antenne BIE à hauteur de résonateur réduite, pouvant atteindre des grandeurs inférieures au dixième de la longueur d’onde. Celle-ci est appelée antenne BIE Ultra Low-Profile (ou ULP). L’objet de cette thèse a donc été d’appréhender les limitations et d’étudier les potentialités de cet aérien en termes de formation de faisceaux, de bande passante et de polarisation. Les travaux menés ont abouti à la conception de trois prototypes d’antenne BIE ULP. Le premier est un dispositif large bande (71%), grand gain (17 dB) conçu dans le cadre d’une application de
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23

Huang, Yi-Cai, and 黃婇翌. "Square shape and circular formation- Huang Yi-Cai million creations." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/x9d3d3.

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碩士<br>國立臺北藝術大學<br>美術學系碩士在職專班<br>98<br>Summary Present paper main explanation square shape and circular in creator life significance as well as creation process. Self-reflection and exploration of the unknown and to express inner art of thinking, like painting the world, to recover the self-sealing in mind the value and repair deep sense of loss, through the analysis of the inner me, Find the meaning of life, and listen to the voice of heart, without pretense, unlike simulation, look forward to his career, to recover the mind is most pure and most moving artistic expression. The essence of eac
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Liu, Hsin-Hung, and 劉信宏. "Detecting Imagery Patterns of Circular Disks in Regular Formation by Hough Transform." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/67521801575882056218.

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碩士<br>國立交通大學<br>資訊科學與工程研究所<br>103<br>Consider the case where a circular boundary consists of 4 equal-sized arcs, the upper/lower and left/right ones, derived from an array of circular disks lying horizontally in equal distance. It’s readily observed that all upper-arcs “lie” in the same line, as “lie” all lower-arcs in another. The same phenomenon exists for left/right arcs on vertically distributed disks. The thesis addresses the subject of detecting imagery patterns of somewhat regularly distributed circular disks via Hough transform. The conception arises from the observation that the orien
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25

Lin, Kung-Yu, and 林冠佑. "The role of FEN1 in formation of hepadnavirus covalently-closed circular DNA." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/95756793787398146899.

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碩士<br>國立臺灣大學<br>微生物學研究所<br>100<br>Hepatitis B virus (HBV) is an enveloped dsDNA virus belongs to hepadnaviridae. The viral genome is a partially double strand DNA form or called the relaxed circular DNA form (rcDNA), in the mature virion. After HBV entry the hepatocyte, the rcDNA will be transported into nucleus and converted to the covalently close circular DNA (cccDNA). The cccDNA persists in the nucleus and serves as template to transcript four viral mRNA, 3.5 kb pregenomicRNA (pgRNA), 2.4 kb preS RNA, 2.1 kb S RNA and 0.7 kb X RNA. The longest transcript, pgRNA, also serves as a template f
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DE, WANG LI, and 汪立德. "The Growth and Formation of Satellite Drops for Low-Speed Circular Liquid Jets." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/06660996713708978696.

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碩士<br>國立海洋大學<br>機械與輪機工程學系<br>88<br>Abstract The atomization of liquid jets has been widely used and of vital importance to many industrial applications. However, the breakup of drop formation has not been fully understood due to the complexity of the atomization process, even for low-speed circular liquid jets. Especially, there are satellite drops, which exist between main drops, during the breakup process of low-speed liquid jets. The early analysis of indirect linear method only predicts the formation of main drops for an inviscid liquid jet and ignores the existence of sa
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WANG, HUI-RU, and 王惠茹. "Numerical simulation to the formation zone of vortex street around a circular cylinder." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/87672823906731809344.

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VANDENBERG, Laura Joanna. "p53 Regulates the Formation of Lamellipodia and Circular Dorsal Ruffles Through Caldesmon and PTEN." Thesis, 2011. http://hdl.handle.net/1974/6552.

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Vascular smooth muscle cell migration is a significant contributor to many aspects of heart disease, and specifically atherosclerosis. Tissue damage in the arteries can result in the formation of a fatty streak. Smooth muscle cells (SMC) can then migrate to this site to form a fibrous cap, stabilizing the fatty plaque. Since cardiovascular disease is the leading cause of death in developed countries, this function of SMC is an essential area of study. The formation of lamellipodia and circular dorsal ruffles were studied in this project as indicators that cell migration is occurring.
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Juang, Chun-Chiao, and 莊淳喬. "Construction of a Reporter System for the formation of hepadnavirus covalently closed circular DNA." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/20597025945963246835.

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碩士<br>國立臺灣大學<br>微生物學研究所<br>101<br>Hepadnavirus, including hepatitis B virus (HBV), possesses a partial double-strand DNA genome, also known as relaxed circular DNA (RC-DNA), which is converted to covalently closed circular DNA (cccDNA), a critical template for hepadnavirus replication, after entry to the hepatocytes. However, little is known about the detailed mechanisms regulating the conversion from RC-DNA to cccDNA. Detection of cccDNA usually requires Southern blotting, which is quite labor-intensive. Therefore, a convenient in vitro cccDNA reporter system should facilitate the research of
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Habbaky, Charles. "A Comparative Study between Circular and Elliptical Nozzle Holes on Natural Gas Combustion and Soot Formation in a Direct Injection Engine." Thesis, 2012. http://hdl.handle.net/1807/33230.

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The effects of changing nozzle hole patterns and hole geometry in a direct injection natural gas optically accessible engine was investigated. Six nozzles were studied having a 1 hole, 3 hole, and 9 hole pattern; each having either elliptical or circular hole geometries. Combustion images were taken with a high speed camera and the nozzles were compared on the basis of their ignition delay time, rate of heat release, net heat release, fuel utilization, gross indicated thermal efficiency, and particulate emissions. The best performance in all categories was achieved by the 9 hole nozzles which
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Blažková, Tereza. "Odpad v kruhu: výpovědní potenciál artefaktů z rondelu v Praze-Ruzyni." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-321522.

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This thesis is focused on research of the rondel (circular ditch) located in the Prague- -Ruzyně area, dated to Late Neolithic Era with the Stroked Pottery culture. Quantitative, qualitative and spatial analysis of rondel's object fillings were carried out and the results and interpretation are presented in this thesis. Particularly thanks to Stroke-ornamented pottery analysis, it was possible to determine the relative chronology of the ditches filling. The interpretation of the material analysis and material spatial distribution tried to describe the trends associated with the formative proce
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Jain, Anoop. "Synchronized and Balanced Collective Formations in Multi-Agent Systems." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/3819.

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Multi-agent systems possess improved robustness properties over single agent systems, and hence, are more desirable for various engineering applications, where it is required for the multiple agents to move in a formation. These applications include, but are not limited to, tracking, surveillance, reconnaissance, environmental monitoring, searching, sensing and data collection. Motivated by these applications, various collective motions of multiple vehicles have been explored in the literature. This thesis studies a particular type of collective motion in multi-agent systems where the heading
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Jain, Anoop. "Synchronized and Balanced Collective Formations in Multi-Agent Systems." Thesis, 2016. http://etd.iisc.ernet.in/2005/3819.

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Multi-agent systems possess improved robustness properties over single agent systems, and hence, are more desirable for various engineering applications, where it is required for the multiple agents to move in a formation. These applications include, but are not limited to, tracking, surveillance, reconnaissance, environmental monitoring, searching, sensing and data collection. Motivated by these applications, various collective motions of multiple vehicles have been explored in the literature. This thesis studies a particular type of collective motion in multi-agent systems where the heading
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LI, CHIANG SHU, and 江淑麗. "The influence of feeding frequency and photoperiod on the formation of circuli in scale of juvenile tilapia (Tilapia mossambicus)." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/86255488601092809730.

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VALOTTA, BRUNA. "Tra Wiener e Morin. Dalla cibernetica alla sibernetica." Doctoral thesis, 2019. http://hdl.handle.net/11570/3146218.

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La tesi si propone di investigare da una prospettiva storico-complessa le tappe più emblematiche del cammino storico-teoretico del pensiero cibernetico, dalla fase pioneristica sino agli sviluppi epistemologici costruttivisti contemporanei della cosiddetta "cibernetica dei sistemi che osservano" e della teoria dell'autopoiesi. Si cercherà di mostrare nella fattispecie come la cibernetica di matrice wieneriana, nella "rigenerativa" veste "sibernetica" proposta da Edgar Morin, prefiguri la possibilità di “superare conservando” il deterministico paradigma di controllo di ascendenza cartesiana, in
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