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Dissertations / Theses on the topic 'Traction force in the bar'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Silva, Silvia Ferreira da. "Avaliação do ruído e do desempenho energético de um trator de rabiças com um arado de disco acoplado." reponame:Repositório Institucional da UFC, 2012. http://www.repositorio.ufc.br/handle/riufc/18075.

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SILVIA, Silvia Ferreira da. Avaliação do ruído e do desempenho energético de um trator de rabiças com um arado de disco acoplado. 2012. 73 f. Dissertação (Mestrado em engenharia agrícola)- Universidade Federal do Ceará, Fortaleza-CE, 2012.<br>Submitted by Elineudson Ribeiro (elineudsonr@gmail.com) on 2016-06-28T19:03:33Z No. of bitstreams: 1 2012_dis_sfsilva.pdf: 2169759 bytes, checksum: c7992e3e903a610067c88893f4c68971 (MD5)<br>Approved for entry into archive by José Jairo Viana de Sousa (jairo@ufc.br) on 2016-06-30T22:51:17Z (GMT) No. of bitstreams: 1 2012_dis_sfsilva.pdf: 2169759 bytes, che

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Silva, Silvia Ferreira da. "AvaliaÃÃo do ruÃdo e do desempenho energÃtico de um trator de rabiÃas com um arado de disco acoplado." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=8513.

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O preparo inicial do solo tem grande importÃncia para a produÃÃo agrÃcola, essa atividade Ã geralmente realizada por traÃÃo animal na agricultura familiar. Nesse trabalho estudou-se a utilizaÃÃo de tratores de rabiÃas como fonte de otimizaÃÃo do trabalho no campo. O experimento foi desenvolvido com um trator de rabiÃas com um arado acoplado na Universidade Federal do CearÃ com o objetivo de avaliar a eficiÃncia energÃtica do trator de rabiÃas acoplado ao arado de disco utilizando trÃs marchas (1Â, 2Â e 3Â) em um Argissolo Vermelho Amarelo, avaliou-se tambÃm o empolamento do solo e os nÃveis de

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3

Polio, Samuel R. "Micropattern traction microscopy: a technique for the simplification of cellular traction force measurements." Thesis, Boston University, 2014. https://hdl.handle.net/2144/11027.

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Thesis (Ph.D.)--Boston University<br>Cells respond to a number of cues that affect how they interact with their surrounding environment, such as topology, the presentation of adhesive ligands, and stiffness. Recent advancements in the field ofmechanobiology have revealed that one of the main ways in which cells sense these cues is through contractile forces. Mechanobiology research seeks to understand how environmental cues affect the forces that cells exert on their surronnding environment and how these mechanical forces are communicated to the cell and transformed into biochemical signals. T

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4

Kollimada, Aiyappa Somanna. "Study of the factors regulating traction force production by cells." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALY050.

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La production de forces mécaniques est impliquée dans de nombreux processus physiologiques incluant la morphogénèse, la migration, la division ou encore la différentiation. Tous ces évènements requièrent une régulation précise de la magnitude des forces et de leur distribution spatiale à l’échelle de la cellule et du tissu. Bien que la production de ces forces au niveau moléculaire repose sur l’interaction complexe d’un petit nombre de protéines bien identifiées, la régulation de ces forces aussi bien que leur mécanisme de transmission à l’échelle de la cellule entière demeure encore mal compr

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5

Franklin, Jared Matthew. "Analysis of the Influence of Cellular Phase on Cell Traction Force Magnitudes." Digital WPI, 2015. https://digitalcommons.wpi.edu/etd-theses/1198.

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"Cell traction force is generated in the cytoskeleton by actomyosin activity and plays an important role in many cellular processes. In previous cell traction force experiments performed by our lab, unexpectedly large variations were measured. Because these experiments were utilizing a cell population of randomized phase, and there had been no documented investigation into whether cell phase affected cell traction force generation or propagation, it was hypothesized that there would be a significant difference in traction force between S phase and the other phases of interphase, as the physica

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Shojaeizadeh, Mina. "An improved approach for cell traction force microscopy using a continuous hydrogel." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/1199.

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"In this thesis, a cell traction force microscopy method is developed for measuring traction forces of connective tissue cells. This method includes an improved methodology in traction force microscopy of live cells cultured on an elastic substrate. Tissue cells, such as skin and muscle cells respond to the mechanical stimuli of their microenvironment by adhering to their substrate and exerting forces on the proteins of the extracellular matrix (ECM). These forces are called cell traction forces. Fibroblasts are grown on polyacrylamide (PA) gels embedded with fluorescent beads and coated with

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7

Gnanasambandam, Bhargavee. "Design of Modified Traction Force Microscopy for Cell Response to De Novo ECM." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1591698756910799.

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8

Hofmann, Andreas [Verfasser]. "Direct Instantaneous Force Control : Key to Low-Noise Switched Reluctance Traction Drives / Andreas Hofmann." Aachen : Shaker, 2016. http://d-nb.info/1118258487/34.

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9

Moussus, Michel. "Forces mécaniques au sein de l'endothélium." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENY008/document.

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Les dysfonctionnements vasculaires ou les blessures induites par l'âge, le tabac, les traumatismes ou une hyperlipidémie font partie de la myriade de facteurs de risques qui contribuent à la pathogénèse de nombreuses maladies cardiovasculaires. Un objectif important de la biologie vasculaire est de comprendre les processus cellulaires qui favorisent ou protègent contre ces maladies vasculaires. Cette pathogénèse est étroitement associée avec le dysfonctionnement de la paroi interne des vaisseaux sanguins. Cette paroi est constituée par une monocouche de cellules endothéliales qui forment l'end

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10

Rundgren, Brian Tavis. "Optimized Sythesis of a Force Generating Planar Four-Bar Mechanism Including Dynamic Effects." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/36042.

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This thesis presents a technique for designing planar four-bar linkages by coupling optimization, dynamics and kinematics. This synthesis technique gives the designer the ability to design linkages having a desired resistance profiles under an assumed motion profile. <p> The design approach presented in this thesis calculates the resistance forces by using both the static and the anticipated dynamic effects of the resistance loading. Almost all research to date has assumed that the static forces in the linkage dominate the dynamic forces; hence, the dynamic effects have been neglected. This th

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11

Duvernoy, Marie-Cécilia. "Mécanique de croissance d'une micro-colonie bactérienne." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAY074/document.

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Ce travail nous a permis de proposer un cadre pour sonder la morphogenèse d'une micro-colonie bidimensionnelle. Plus particulièrement, nous avons exploré la manière dont les effets individuels de croissance et d'adhésion se combinaient au cours de la croissance de la micro-colonie. Nous avons montré (i) que l'adhésion de cellules isolées est asymétrique du fait d'un vieux pôle plus ancré et (ii) que l'allongement des bactéries peut induire des forces de poussée à l'intérieur des colonies. Dans la mesure où ces deux effets, combinés à l'échelle d'une micro-colonie, sont susceptibles de générer

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Nier, Vincent Philippe. "Estimation statistique des propriétés physiques de monocouches cellulaires." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066233/document.

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Les cellules épithéliales forment des tissus cohésifs, sous forme de monocouches que l'on retrouve dans les poumons, les reins ou la peau. Travaillant à partir d'expériences in vitro, nous avons caractérisé le comportement mécanique de monocouches cellulaires. Nous avons étudié la fermeture de blessures circulaires sur un substrat non adhésif. En comparant différents modèles, nous avons montré comment la fermeture est possible grâce à un cable contractile d'acto-myosine et aux fluctuations de la tension du tissu. La Microscopie des Forces de Traction (TFM) permet de mesurer les forces que les

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13

Tseng, Qingzong. "Etude d'architecture multicellulaire avec le microenvironnement contrôlé." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00622264.

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Ce manuscrit de thèse est composé de trois parties dédiées aux développements technologiques nécessaires à l'étude de la polarité et des contraintes mécaniques dans les cellules épithéliales. La première partie décrit les développements technologiques et méthodologiques qui ont été réalisés en micro-fabrication et traitement de surface, acquisition et analyse d'image, et mesure des forces de traction. La deuxième partie décrit l'étude de l'organisation spatiale du système d'adhérence des cellules épithéliales. De la régulation de leur polarité à celle de leur fonction, l'architecture des cellu

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Sundar, Rajan Vinoth Edal Joseph. "Adhesion and transendothelial migration of cancer cells." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAV065/document.

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Les métastases sont responsables de 90 % des décès causés par le cancer. Les métastases sont des foyers cancéreux secondaires qui se forment à distance de la tumeur d’origine. Des cellules cancéreuses quittent la tumeur primaire, rejoignent la circulation sanguine puis colonisent des organes voisins par migration à travers l’endothélium vasculaire. Ce phénomène d’adhésion à l’endothélium et de migration à travers l’endothélium appelé l’extravasation est une étape clé du processus métastatique. L’identification des molécules impliquées constitue une priorité dans le but d’élaborer de nouvelles

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15

Sehlstedt, Niklas. "Hybrid methods for inverse force estimation in structural dynamics." Doctoral thesis, KTH, Vehicle Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3528.

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16

Al-Rekabi, Zeinab. "Investigating Mechanotransduction and Mechanosensitivity in Mammalian Cells." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/30256.

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Living organisms are made up of a multitude of individual cells that are surrounded by biomolecules and fluids. It is well known that cells are highly regulated by biochemical signals; however it is now becoming clear that cells are also influenced by the mechanical forces and mechanical properties of the local microenvironment. Extracellular forces causing cellular deformation can originate from many sources, such as fluid shear stresses arising from interstitial or blood flow, mechanical stretching during breathing or compression during muscle contraction. Cells are able to sense variations

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17

Gulic, Maja [Verfasser]. "Integrin and cell type specific traction force generation and the impact of extrinsic and intrinsic factors / Maja Gulic." Ulm : Universität Ulm, 2016. http://d-nb.info/1121108075/34.

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18

Lautrou, Alain. "Effets directionnels d'une force extra-orale appliquée sur un activateur en hyperpropulsion." Paris 5, 1993. http://www.theses.fr/1993PA05M015.

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19

Kosgolla, Janaka Vishwanath. "Numerical Simulation of Sliding Friction and Wet Traction Force on a Smooth Tire Sliding on a Random Rough Pavement." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4345.

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Availability of analytical and numerical tools that can provide reliable and accurate estimates of wet frictional resistance in different pavements would preclude the need for time consuming field tests. Therefore, many research efforts have been made to develop such tire-pavement friction predictive tools that are invaluable for friction management programs. However, due to the complexity of the problem, most existing tools have been developed based on several simplifying assumptions and without field verification of their predictions. The current study is focused on the evaluation of two spe

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20

Neumann, Hendrikje Marie [Verfasser]. "Prototyping of a Surface-integrated Mechano-optical Microsensor System for 3D Traction Force Measurements by DHM/DIC / Hendrikje Marie Neumann." Kiel : Universitätsbibliothek Kiel, 2019. http://d-nb.info/1197612440/34.

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21

Soon, Chin Fhong. "Development of a novel cell traction force transducer based on cholesteryl ester liquid crystals : characterisation, quantification and evaluation of a cholesteryl ester liquid crystal based single cell force transducer system." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5379.

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In biomechano-transducing, cellular generated tension can be measured by soft substrates based on polymers but these techniques are limited either by spatial resolution or ability to detect localised cell traction forces (CTF) due to their non-linear viscous behaviour under shear rates. A newly developed cell traction force transducer system based on cholesteryl ester lyotropic liquid crystals (LCTFT) was developed to sense localised traction forces of human keratinocyte cell lines (HaCaTs), in which the length of the deformation line induced represents the intensity of the CTF exerted. The ph

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22

Huang, Yunfei [Verfasser], Gerhard [Gutachter] Gompper, and Dirk [Gutachter] Witthaut. "Advanced data analysis for traction force microscopy and data-driven discovery of physical equations / Yunfei Huang ; Gutachter: Gerhard Gompper, Dirk Witthaut." Köln : Universitäts- und Stadtbibliothek Köln, 2020. http://d-nb.info/1230059822/34.

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23

Makarchuk, Stanislaw. "Measurement of cell adhesion forces by holographic microscopy." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAE034/document.

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Les forces mécaniques, générées par la cellule jouent un rôle crucial dans l'adhésion cellulaire, qui est un processus commun à un grand nombre de lignées cellulaires. Afin de mesurer la champ des forces pendant l'adhérence cellulaire, nous utilisons la microscopie de force de traction, où la cellule adhère à la surface plane d'un substrat souple dans le plan. Les forces sont calculées à partir du champ de déplacement mesuré à l'intérieur du substrat sous la cellule. Nous avons construit le microscope, dans lequel nous utilisons des billes sphériques en polystyrène pour mesurer le champ de dép

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24

Kraval, Jiří. "Výroba držáku magnetu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241157.

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This project developed within the engineering studies of M-STG submits a proposal of a production technology of production of the magnet holder made of DC03. Based on a literary study of the problem of cutting, drawing, bending and calculations manufacturing of the component in a production die was suggested. The production die uses a normalised component and is tightened on PE 100 crank press with nominal drawbar pull 1000 kN. The conclusion of the thesis deals with the economic benefit of the suggested manufacturing technology.

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Cirka, Heather Ann. "Mechanical Regulation of Apoptosis and Calcification within Valvular Interstitial Cells." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-dissertations/213.

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Calcific aortic valvular disease (CAVD) is the most common valvular pathology in the developed world. CAVD results in calcifications forming on the aortic valve leaflets, inhibiting proper closure and causing complications of stenosis and regurgitation. Although, the mechanisms behind the disease initiation are unknown, it is believed to be a cell-mediated phenomenon, and not the result of passive degradation of the valve as once believed due to the increased prevalence with age. Currently, there are no pharmaceutical options for the prevention or reversal of calcifications, the only treatment

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Coetzé, Lisa Jane. "Investigation of blunt injuries and the force associated with a skull fracture due to impact with a Hopkinson pressure bar : an animal model." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15575.

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Homicide is one of the leading causes of death in South Africa. Homicides as a result of a firearm, sharp instrument or blunt object, may all potentially inflict severe cranial trauma. Often the lateral aspect of the cranium is fractured in homicidal assaults, however, the focus of head injury biomechanics has been the frontal bone. This is due to automotive-related incidents. Thus it is important for researchers to broaden their knowledge on lateral head impacts. This data could ultimately act as a tool in making cranial bone trauma analysis less subjective in nature. This minor dissertation

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Belhadi, M'hamed. "Étude de machines à réluctance variable pour une application de traction électrique : réduction des ondulations de couple et des efforts radiaux." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112185.

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Le mémoire traite de la machine à réluctance variable en proposant d'une manière simultanée et du point de vue conception des solutions à ses deux inconvénients majeurs à savoir les ondulations de couple et les efforts radiaux. Les premières se propagent le long de la chaine de transmission diminuant ainsi le confort des usagers et les deuxièmes sont à l’origine d’une nuisance sonore. Dans une première partie et en s’intéressant à une structure axiale caractérisée par une faible force radiale, un bilan sur cette structure est donc établi. En effet, une configuration à deux stators et un rotor

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Ng, Mei Rosa. "Mechanical Regulation of Epithelial Cell Collective Migration." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10578.

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Cell migration is a fundamental biological process involved in tissue development, wound repair, and diseases such as cancer metastasis. It is a biomechanical process involving the adhesion of a cell to a substratum, usually an elastic extracellular matrix, as well as the physical contraction of the cell driven by intracellular actomyosin network. In the migration of cells as a group, known as collective migration, the cells are also physically linked to one another through cell-cell adhesions. How mechanical interactions with cell substratum and with neighboring cells regulate movements durin

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Yu, Xiao. "Study of the Motility of Biological Cells by Digital Holographic Microscopy." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5159.

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In this dissertation, I utilize digital holographic microscopy (DHM) to study the motility of biological cells. As an important feature of DHM, quantitative phase microscopy by digital holography (DH-QPM) is applied to study the cell-substrate interactions and migratory behavior of adhesive cells. The traction force exerted by biological cells is visualized as distortions in flexible substrata. Motile fibroblasts produce wrinkles when attached to a silicone rubber film. For the non-wrinkling elastic substrate polyacrylamide (PAA), surface deformation due to fibroblast adhesion and motility is

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Benkherourou, Mohamed. "Caractérisation mécanique et modélisation de gels de fibrine soumis à des contraintes cellulaires : une contribution à l'étude des forces de traction cellulaires." Université Joseph Fourier (Grenoble), 1999. http://www.theses.fr/1999GRE19014.

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HIRATA, Hiroaki, Hitoshi TATSUMI, and Masahiro SOKABE. "Tension-Dependent Formation of Stress Fibers in Fibroblasts : A Study Using Semi-Intact Cells." The Japan Society of Mechanical Engineers, 2004. http://hdl.handle.net/2237/9066.

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Ferreira, Mauro Fernando. "Influência da soldagem de revestimento na vida útil de ponteiras sulcadoras de semeadoras adubadoras." Universidade Federal de Pelotas, 2008. http://repositorio.ufpel.edu.br/handle/ri/1168.

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Made available in DSpace on 2014-08-20T13:25:41Z (GMT). No. of bitstreams: 1 TESE_Mauro_Fernando_Ferreira.pdf: 34428971 bytes, checksum: 24ff7e5e9163d78b1220c1bbf56e782c (MD5) Previous issue date: 2008-11-28<br>This work had as objective to analyze alternatives to increase the useful life of the ferrules of hoe opener rods of no-till planters, through the addition of covering welding. It was verified the performance of five welding types, being used covered electrodes and tubular wire, over the extremity of the hoe. The tests were executed in franc-sandy soil characterized physically b

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Furtado, Júnior Marconi Ribeiro. "Análise operacional de um trator agrícola em função da pressão interna dos pneus e inclinação da linha de tração." Universidade Federal de Viçosa, 2013. http://locus.ufv.br/handle/123456789/3636.

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Made available in DSpace on 2015-03-26T13:23:49Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1550233 bytes, checksum: d4d097877e07cf41cd16798df4a21906 (MD5) Previous issue date: 2013-02-18<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The importance of Brazilian agriculture in the global scenario is closely related to the expansion of the agricultural frontier throughout the country in recent decades. This process occurred through the use of new techniques, processes and equipment that allowed the expansion of crops for areas previously considered unsuitable. The trac

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Kovari, Daniel T. "Investigations of the spreading and closure mechanisms of phagocytosis in J774a.1 macrophages." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54882.

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Phagocytosis is the process by which cells engulf foreign bodies. It is the hallmark behavior of white blood cells, being the process through which those cells ingest and degrade pathogens and debris. To date a large amount of research has focused on documenting the existence and role of biochemical components involved with phagocytosis. Scores of signaling molecules have been implicated in the complex signal cascade which drives the process. These molecules are small (typically no larger than 5 nanometers) and operate in a crowded, chemically “noisy,” environment, yet they coordinate the cell

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Grotta, Danilo Cesar Checchio. "Desempenho operacional de semeadora-adubadorae perdas na colheita do milho em sistema de plantio direto/." Jaboticabal : [s.n.], 2008. http://hdl.handle.net/11449/105195.

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Resumo: O objetivo buscado com o desenvolvimento do trabalho foi obter informações quanto às melhores alternativas para o sistema de semeadura direta em regiões com características semelhantes às de Jaboticabal/SP, na cultura do milho, em diferentes manejos de culturas de cobertura do solo. O experimento foi conduzido na área experimental do Laboratório de Máquinas e Mecanização Agrícola (LAMMA) da UNESP/Jaboticabal. Avaliou-se o desempenho do conjunto trator-semeadora-adubadora, o desenvolvimento de um híbrido simples de milho (DKB 390), e as perdas na colheita mecanizada em função de 2 cultu

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Grotta, Danilo Cesar Checchio [UNESP]. "Desempenho operacional de semeadora-adubadorae perdas na colheita do milho em sistema de plantio direto." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/105195.

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Made available in DSpace on 2014-06-11T19:33:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-05-29Bitstream added on 2014-06-13T18:45:40Z : No. of bitstreams: 1 grotta_dcc_dr_jabo.pdf: 473302 bytes, checksum: f8cdc0255abc578da01bc3a223137e5e (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O objetivo buscado com o desenvolvimento do trabalho foi obter informações quanto às melhores alternativas para o sistema de semeadura direta em regiões com características semelhantes às de Jab

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Chwastek, Grzegorz. "Interactions of FCHo2 with lipid membranes." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-129388.

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Endocytosis is one of the most fundamental mechanisms by which the cell communicates with its surrounding. Specific signals are transduced through the cell membrane by a complex interplay between proteins and lipids. Clathrin depended endocytosis is one of important signalling pathways which leads to budding of the plasmalemma and a formation of endosomes. The FCHo2 is an essential protein at the initial stage of the this process. In is a membrane binding protein containing BAR (BIN, Amphiphysin, Rvs) domain which is responsible for a membrane binding. Although numerous valuable work on BAR pr

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Baggio, Filho Nolvi Francisco. "Estudo de um atuador planar de indução." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/67865.

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O presente trabalho trata do estudo, análise, construção e teste de uma nova configuração para um atuador planar. O dispositivo, que apresenta uma movimentação sobre o plano com dois graus de liberdade a partir de um único dispositivo de tração, é formado por um carro, também chamado de primário, que apresenta dois enrolamentos trifásicos independentes, ortogonais entre si, montados em um núcleo ranhurado de material compósito magneticamente macio de grão isolado; e por um estator, também chamado de secundário, formado por uma chapa de alumínio plana montada sobre um núcleo ferromagnético igua

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Mukherjee, Bikramjit. "Interfacial debonding from a sandwiched elastomer layer." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/71464.

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The problem of a thin elastomeric layer confined between two stiff adherends arises in numerous applications such as microelectronics, bio-inspired adhesion and the manufacture of soft biomedical products. A common requirement is that the debonding of the elastomeric layer from the adherends be controlled to avoid undesirable failure modes. This level of control may necessitate understanding the collective role of the interfacial adhesion, material properties, part geometries, and loading conditions on the debonding. Analytical and numerical approaches using the finite element method and a co

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Sankara, Narayana Gautham Hari Narayana. "Role of non-muscle myosin-II isoforms in adherens junction biogenesis and collective migration." Thesis, Université de Paris (2019-....), 2019. https://theses.md.univ-paris-diderot.fr/SANKARA_NARAYANA_Gautham_Hari_Naryana_va.pdf.

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La formation et le remodelage des jonctions intercellulaires sont essentiels pour de nombreux processus biologiques tels que la compaction et la morphogenèse de l’embryon, la formation et la cicatrisation des tissus, le maintien de l’homéostasie tissulaire. Il est maintenant bien décrit que la myosine II non musculaire (NMII) agit comme un générateur de force et un support mécanique pour les jonctions adherens (E-cadhérine-dépendantes) lors de la migration collective et de la morphogenèse. Cependant, la contribution de NMII pendant les premières étapes de la formation de jonctions adherens res

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Gassen, José Renê Freitas. "Avaliação de ferramenta para a escarificação do solo em camadas de forma simultânea." Universidade Federal de Santa Maria, 2011. http://repositorio.ufsm.br/handle/1/3600.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The growing demand for energy that causes the increased traffic of agricultural machinery, larger and more robust, acts negatively on soil compaction, directly and indirectly affecting crop productivity, as many changes in soil physical attributes. As a potential technique to solve this problem has the chiseling, which promotes the disruption of these compacted layers, without causing the inversion of the soil, keeps the plant residues deposited on the surface, improves infiltration, the structure and porosity of the soil and

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Demmerle, Stefan. "Optimisation des essais biaxiaux directs sur les métaux laminés." Grenoble 1, 1993. http://www.theses.fr/1993GRE10138.

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L'objet de ce travail est le developpement et la mise au point de methodes mathematiques et numeriques, ainsi que de techniques experimentales, pour optimiser les essais biaxiaux en double traction sur les metaux lamines anisotropes, et obtenir ainsi des donnees experimentales realistes et fiables pour l'identification correcte des lois de comportement de ces materiaux. Pour la realisation correcte des essais biaxiaux, un programme d'asservissement pour une machine d'essais biaxiale directe, permettant le pilotage des essais a partir des donnees mesurees en temps reel, a ete concu et mis en uv

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Liu, Jianbin, Benjamin Beck, Jakob Münch, et al. "Agrothermie - design and testing of a novel hydraulically-actuated, locally vibrating plough." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71220.

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Economic utilization of geothermal networks under agricultural surfaces needs large agricultural areas. In order to exploit the cultivated land more effectively, this paper proposes a novel locally vibrating plough system that employs a hydraulic actuator direct on the plough blade instead of the state of the art external vibration units. Starting with a description of geothermal networks under agricultural surfaces and the construction technology in details, the contribution shows different concepts, the development and test of the most promising solution for imprinting local vibrations at th

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Jaren, Sophie. "Étude de TbFe2 épitaxié par dépot laser pulsé : des couches minces aux nanostructures magnétiques." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10064.

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Le compose tbfe#2 presente des proprietes de magnetostriction geante a temperature ambiante. Nous avons mene une etude des conditions de croissance, des proprietes structurales et des proprietes magnetiques des couches minces epitaxiees de tbfe#2(111). Les couches elaborees par depot laser pulse (pld) ont des epaisseurs de 60-240 a. Nous avons determine les effets de la temperature de depot sur la morphologie des couche, observee par microscopie afm. Nous montrons qu'un depot en gradient de temperature (type b) permet d'obtenir des couches plus continues qu'un depot a temperature constante ele

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Wu, Chun-Chieh, and 吳群傑. "The Measurement of Cell Traction Force during Migration by Traction Force Microscopy." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/79239326989849278354.

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碩士<br>國立陽明大學<br>腦科學研究所<br>103<br>Cellular traction forces are an important role in physiological processes including embryo morphogenesis ,tissue repair ,wound healing, and the immune response. Pregnenolone (P5) is a neurosteroid that improves memory and neurological recovery. The previous research have shown P5 can bind to and activate a microtubule plus-end protein, CLIP-170, to promote microtubule growth and cell migration. However, the mechanism by which P5 regulates cell traction force generation is still unclear. Here, we hypothesize that P5 has effect on cell traction force and cell mor

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Ho, Chi-Hung, and 何啟弘. "Studying the Influences of Actin Assembly on Cellular Traction Force with Traction Force Microscopy." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/vj4zfc.

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Soon, Chin Fhong, K. S. Tee, Mansour Youseffi, and Morgan C. T. Denyer. "Single cell traction force mapping software." 2015. http://hdl.handle.net/10454/9408.

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Lee, Hung-Huei, and 李虹慧. "Three-Dimensional Cellular Traction Force Microscopy." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/96335181823301001858.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>103<br>While migrating, cells generate traction forces to the polyacrylamide substrate through complex adhesion mechanism. Measuring such forces, known as traction force microscopy, is of critical importance in understanding how cells interact with extracellular matrix. The polyacrylamide gel is indeed a viscoelastic material. However, cellular traction force analysis considering viscoelastic models becomes too complicated to tackle, and is beyond the scope of this study. In this thesis, we focus on the traction force under static condition; therefore, we assume tha

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Ai, Yu-Chi, and 艾玉琪. "Working toward three-dimensional traction force microscopy." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/91157557665715411481.

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碩士<br>國立臺灣大學<br>物理研究所<br>104<br>Many results in cellular traction force microscopy (TFM) based on the flat matrix deformation determined by fluorescent marker displacement has been produced. Cells, however, are naturally live in three-dimensional environment, so we tried to make a substrate contain symmetrical spherical hole with tunable curvature to measure traction force. We use confocal microscope to image live cells. In order to carry out live cell imaging, the crucial factor is the heated environment for cell to live. The temperature fluctuation produced in the optical system made focus p

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Wei-Lun, Fan. "Regulation of cell traction force by DAP-kinase." 2005. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-0907200510563700.

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