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Littérature scientifique sur le sujet « Cycloidea »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 3 février 2022

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Articles de revues sur le sujet "Cycloidea"

Schram, Frederick R., Ronald Vonk, and Cees H. J. Hof. "Mazon Creek Cycloidea." Journal of Paleontology 71, no. 2 (1997): 261–84. http://dx.doi.org/10.1017/s0022336000039172.

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The Mazon Creek Cycloidea contain four taxa: Cyclus americanus Packard, 1885, Cyclus obesus, new species, Halicyne max, new species, and Apionicon apioides, new genus, new species. We conclude, based on a cladistic analysis, that cycloids are specialized maxillopodan crustaceans and a possible sister group to the Copepoda. They may have filled a niche similar to modernday crabs.

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Fraaije, René H. B., Frederick R. Schram, and Ronald Vonk. "Maastrichtiocaris rostratus new genus and species, the first Cretaceous cycloid." Journal of Paleontology 77, no. 2 (2003): 386–88. http://dx.doi.org/10.1017/s0022336000043729.

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Since the description of the first cycloid from the Carboniferous of Yorkshire, England (Phillips, 1835) the Cycloidea have been placed in many different groups within the Arthropoda. These include agnostid trilobites (Phillips, 1835), xiphosure merostomes (Packard, 1872; Oosterink, 1978), limuloid-like crustaceans (Woodward, 1905), decapod brachyurans (Trauth, 1918), branchiurans (Hopwood, 1925), copepods (Clark, 1989), and maxillopodan crustaceans (Schram et al., 1997).

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CITERNE, H. L. "A PRIMER SET FOR SPECIFIC AMPLIFICATION OF TWO CYCLOIDEA-LIKE GENES IN THE GENISTOID CLADE OF LEGUMINOSAE SUBFAM. PAPILIONOIDEAE." Edinburgh Journal of Botany 62, no. 3 (2005): 119–26. http://dx.doi.org/10.1017/s0960428606000126.

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Locus-specific primers were designed to amplify the homologues LEGCYC1A and LEGCYC1B of the snapdragon (Antirrhinum majus) floral symmetry gene CYCLOIDEA in the genistoid legumes Lupinus nanus and Cadia purpurea. These primers were tested successfully in a range of genistoid taxa. Sequence comparison between L. nanus and L. angustifolius revealed that these CYCLOIDEA-like genes provide up to four times as many variable characters as the ribosomal internal transcribed spacers (ITS) at this taxonomic level. These genes are therefore potentially useful for studying evolutionary relationships betw

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Yokoyama, Jun, Tatsuya Fukuda, and Masayuki Maki. "Molecular Evolution of cycloidea -Like Genes in Fabaceae." Journal of Molecular Evolution 57, no. 5 (2003): 588–97. http://dx.doi.org/10.1007/s00239-003-2498-2.

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Damerval, Catherine, and Michaël Manuel. "Independent evolution of Cycloidea-like sequences in several angiosperm taxa." Comptes Rendus Palevol 2, no. 3 (2003): 241–50. http://dx.doi.org/10.1016/s1631-0683(03)00031-9.

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Vieira, C. P., J. Vieira, and D. Charlesworth. "Evolution of the cycloidea gene family in Antirrhinum and Misopates." Molecular Biology and Evolution 16, no. 11 (1999): 1474–83. http://dx.doi.org/10.1093/oxfordjournals.molbev.a026059.

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Liu, Ming-Ming, Mang-Mang Wang, Jin Yang, et al. "Evolutionary and Comparative Expression Analyses of TCP Transcription Factor Gene Family in Land Plants." International Journal of Molecular Sciences 20, no. 14 (2019): 3591. http://dx.doi.org/10.3390/ijms20143591.

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The plant-specific Teosinte-branched 1/Cycloidea/Proliferating (TCP) transcription factor genes are involved in plants’ development, hormonal pathways, and stress response but their evolutionary history is uncertain. The genome-wide analysis performed here for 47 plant species revealed 535 TCP candidates in terrestrial plants and none in aquatic plants, and that TCP family genes originated early in the history of land plants. Phylogenetic analysis divided the candidate genes into Classes I and II, and Class II was further divided into CYCLOIDEA (CYC) and CINCINNATA (CIN) clades; CYC is more re

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Smith, James F., Lena C. Hileman, Martyn P. Powell, and David A. Baum. "Evolution of GCYC, a Gesneriaceae homolog of CYCLOIDEA, within Gesnerioideae (Gesneriaceae)." Molecular Phylogenetics and Evolution 31, no. 2 (2004): 765–79. http://dx.doi.org/10.1016/j.ympev.2003.09.012.

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Citerne, Hélène L., Da Luo, R. Toby Pennington, Enrico Coen, and Quentin C. B. Cronk. "A Phylogenomic Investigation of CYCLOIDEA-Like TCP Genes in the Leguminosae." Plant Physiology 131, no. 3 (2003): 1042–53. http://dx.doi.org/10.1104/pp.102.016311.

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Gubitz, T. "Rapid Molecular Evolution of CYCLOIDEA-like Genes in Antirrhinum and Its Relatives." Molecular Biology and Evolution 20, no. 9 (2003): 1537–44. http://dx.doi.org/10.1093/molbev/msg166.

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Thèses sur le sujet "Cycloidea"

Citerne, Helene Lucie. "Examination of CYCLOIDEA-like genes in the Leguminosae." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/13400.

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The genetic control of floral symmetry in the Leguminosae and the genetic basis for the apparent reversal to radial symmetry in Cadia were investigated using a candidate gene approach. In the model organism Antirrhinum majus (snapdragon, Lamiales), two paralogous genes CYCLOIDEA (CYC) and DICHOTOMA (DICH) determine dorsal (adaxial) floral identity and play a crucial role in the establishment of zygomorphy. The orthologue of CYCIDICH in Arabidopsis thaliana TCP1 also has adaxial expression in the early stages of floral development. CYC-like genes

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Clark, Jennifer I. "Regulation of cycloidea : a gene controlling floral asymmetry in Antirrhinum majus." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368176.

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Toomey, Nicola. "Investigation of the phylogenetic utility of Cycloidea-like genes in various angiosperm lineages." Thesis, University of Reading, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414722.

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Coenen, Karine. "Are CYCLOIDEA-like genes involved in the control of floral zygomorphy in Schizanthus wisetonensis?" Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/13439.

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In Antirrhinum majus (Scrophulariaceae), floral dorso-ventral asymmetry (monosymmetry) is controlled by two genes belonging to the TCP gene family, CYCLOIDEA and DICHOTOMA. My project was to investigate if putative orthologs of CYC and DICH have a conserved role in Schizanthus wisotonensis (Solanaceae), a species also bearing monosymmetrical flowers. To do so, TCP genes from S. wisotonensis were isolated and their expression pattern was characterised in both a wild type and a mutant plant with decreased dorso-ventral asymmetry. In the fir

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Kim, Joonseog. "EFFECTS OF SILENCING CYC2-LIKE GENES ON FLORAL DEVELOPMENT IN SOLANUM LYCOPERSICUM L. AND NICOTIANA OBTUSIFOLIA M. MARTENS & GALEOTTI (SOLANACEAE)." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/5014.

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CYCLOIDEA (CYC) and DICHOTOMA (DICH) of the CYC2 clade of the TCP gene family have been shown to play a significant role in regulating the identity of the dorsal petals and abortion of the single dorsal stamen in Antirrhinum majus. It is believed that CYC2-like genes are responsible for the convergent evolution of floral zygomorphy, but their role in the development of actinomorphic flowers is still unknown. In Solanaceae, previous analysis has identified two paralogs of CYC2-like genes, CYC2A and CYC2B, resulting from a gene duplication that predates the origin the family. Virus-induced gene

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Ferraro, Benjamin James. "Examining the roles of CYCLOIDEA, RADIALIS and DIVARICATA in driving the evolution of flower shape Californian Diplacus pictus (Curran ex Greene) Nesom (Phrymaceae)." Thesis, California State University, Long Beach, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1526903.

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Flower shape, color and size are extensively studied to both identify and classify different angiosperm taxa. The availability of well-supported molecular phylogenies produced using complex models of sequence evolution, coupled with an understanding of the genes that regulate morphological form in model organisms, and new methods to infer gene expression patterns in diverse species now allow us to understand the genetic basis of morphological differences among closely related species. Studies in Plantaginaceae, Gesneriaceae, Fabaceae and Brassicaceae show the importance of CYCLOIDEA (CY

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Soltwisch, Victor [Verfasser]. "Stripes and cycloids : komplexe Ordnungsphänomene in Übergangsmetalloxiden / Victor Soltwisch." Berlin : Freie Universität Berlin, 2012. http://d-nb.info/1026884179/34.

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McNabb, Michael Lynn. "Development of a cycloidal propulsion computer model and comparison with experiment." Master's thesis, Mississippi State : Mississippi State University, 2001. http://library.msstate.edu/etd/show.asp?etd=etd-08032001-111940.

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Borislavov, Biser, Ivaylo Borisov, and Vilislav Panchev. "Design of a Planetary-Cyclo-Drive Speed Reducer : Cycloid Stage, Geometry, Element Analyses." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-19635.

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This project has been assigned by SwePart Transmissions AB. It is about calculation and dimensioning, of the elements in a cycloid stage of a speed reducer. Their idea is to use the results from this project and go into production of such reducer to cover another segment of the market. The company is interested in supplying transmissions for robust systems and for various industrial purposes, where large ratios of speed reduction are needed. The company has given the necessary input data for the model. They have also provided a real cyclo-drive reducer for further analyses. To obtain the dimen

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Atkin, Leanne. "Feasibility study to evaluate cycloidal vibration therapy for the symptomatic treatment of intermittent claudication due to peripheral arterial disease." Thesis, University of Huddersfield, 2017. http://eprints.hud.ac.uk/id/eprint/34416/.

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Introduction: Peripheral arterial disease (PAD) is a strong prognostic indicator of poor long-term survival (Norgren et al., 2007). A symptom of PAD is intermittent claudication which affects 5% of the adult population aged over 55 years (Fowkes et al., 2013). Intermittent claudication (IC) occurs during ambulation when the peripheral circulation is inadequate to meet the metabolic requirement of the active leg muscle, resulting in severe pain (Gardner et al., 2008). Consequently, patients suffering from IC find that the ambulatory dysfunction limits daily physical activity and negatively affe

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Livres sur le sujet "Cycloidea"

Schram, Frederick R. Cycloidea of the Mississippian Bear Gulch Limestone of central Montana. Natural History Museum of Los Angeles County, 2006.

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Solomon, Harry. Cycloid. Figure Eight Press, 1992.

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Dirnböck, Hans. Die Antizykloidenbewegung: Die Kreisrollung mit einer gegebenen geraden Bahn. Heyn, 1987.

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Li, Jin. Theoretical and experimental study of cycloidal propellers. National Library of Canada, 1992.

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A treatise on the cycloid and all forms of cycloid curves: And on the use of such curves in dealing with the motions of planets, comets, &c. and of matter projected from the sun. Longmans, Green and Co., 1991.

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Parker, Philip M. The 2007-2012 World Outlook for Planetary, Cycloidal, Epicyclic, Chain, and Cam Reducers and Gearmotors. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Planetary, Cycloidal, Epicyclic, Chain, and Cam Reducers and Gearmotors. Icon Group International, Inc., 2005.

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Leonhard Classification of Endogenous Psychoses: Cycloid Psychoses, Differentiated Nosology, Differentiated Therapy & Historical Aspects - Journal: PS. S. Karger AG (Switzerland), 1991.

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Nagaosa, N. Multiferroics. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198787075.003.0010.

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This chapter delves into the physics of multiferroics, the recent developments of which are discussed here from the viewpoint of the spin current and “emergent electromagnetism” for constrained systems. It presents the three sources of U(1) gauge fields, namely, the Berry phase associated with the noncollinear spin structure, the spin-orbit interaction (SOI), and the usual electromagnetic field. The chapter reviews multiferroic phenomena in noncollinear magnets from this viewpoint and discusses theories of multiferroic behavior of cycloidal helimagnets in terms of the spin current or vector sp

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Chapitres de livres sur le sujet "Cycloidea"

Rhoden, Alyssa. "Cycloid (Europa)." In Encyclopedia of Planetary Landforms. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-9213-9_95-1.

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Rhoden, Alyssa Rose. "Cycloid (Europa)." In Encyclopedia of Planetary Landforms. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-3134-3_95.

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Schmitt, Andrea, Berend Malchow, Peter Falkai, and Alkomiet Hasan. "Cycloid psychoses." In Troublesome disguises. John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118799574.ch4.

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Leonhard, Karl, and Helmut Beckmann. "The Cycloid Psychoses." In Classification of Endogenous Psychoses and their Differentiated Etiology. Springer Vienna, 1999. http://dx.doi.org/10.1007/978-3-7091-6371-9_3.

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Valk, Rüdiger. "Circular Traffic Queues and Petri’s Cycloids." In Application and Theory of Petri Nets and Concurrency. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51831-8_9.

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Figliolini, Giorgio, Hellmuth Stachel, and Jorge Angeles. "The Computational Fundamentals of Spatial Cycloidal Gearing." In Computational Kinematics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01947-0_46.

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Brovkina, Yu I., A. N. Sobolev, and A. Y. Nekrasov. "Research of Characteristics and Parameters of Cycloidal Gear." In Proceedings of the 4th International Conference on Industrial Engineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95630-5_122.

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Falkai, P., B. Bogerts, E. Klieser, J. Mooren, H. Waters, and U. Schlüter. "Das Computertomogramm bei Schizophrenen, Patienten mit einer cycloiden Psychose und Kontrollpersonen." In Biologische Psychiatrie der Gegenwart. Springer Vienna, 1993. http://dx.doi.org/10.1007/978-3-7091-9263-4_118.

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Rosenhahn, Bodo, and Gerald Sommer. "Pose Estimation of Cycloidal Curves by using Twist Representations." In Clifford Algebras. Birkhäuser Boston, 2004. http://dx.doi.org/10.1007/978-1-4612-2044-2_37.

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Gagnon, Louis. "Numerical Investigation of Aerodynamic Fairings on a Cycloidal Rotor." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79561-0_33.

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Actes de conférences sur le sujet "Cycloidea"

Davoli, Piermaria, Carlo Gorla, Francesco Rosa, Claudio Longoni, Franco Chiozzi, and Alessandro Samarani. "Theoretical and Experimental Analysis of a Cycloidal Speed Reducer." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-34098.

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Compared with common speed reducers, the cycloidal ones (also known as cycloid drives) cover a wider range of transmission ratios, have a higher load-carrying capacity, are smaller, exhibit a smoother running and a good efficiency. These characteristics make them attractive for industrial applications, especially for robotics applications, machine tools and linear axis positioning in assembly machinery. In this paper, a theoretical and experimental investigation on an innovative cycloidal speed reducer will be presented. The typical cycloid drive has a planet wheel, the profile of which is the

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Blanche, J. G., and D. C. H. Yang. "Cycloid Drives With Machining Tolerances: Part I — Kinematic Analysis." In ASME 1987 Design Technology Conferences. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/detc1987-0076.

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Abstract The cycloidal speed reducer, or cycloid drive, is an epicyclic gear train in which the profile of the planet gear is an epitrochoid and the annular sun gear has rollers as its teeth. The cycloid drive has very high efficiency and small size, in comparison with a conventional gear mechanism, making it an attractive candidate for limited space applications. On the other hand, in this type of transmissions there exist two major drawbacks, namely, backlash and torque ripple Backlash, the angle through which the output shaft can rotate when the input shaft is held fixed, has a degrading ef

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Thube, Sandeep V., and Todd R. Bobak. "The Dynamic Simulation and Analysis of a Cycloidal Speed Reducer." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48494.

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In industry, digital prototyping has become a valuable tool for the design and subsequent analysis of components for a proposed design. Prior to its maturation as a design tool, it was common to go through repeated physical iterations of a given design to assess form, fit and function. Investments in design time, prototype procurement and subsequent testing yielded long term product incubation periods from initial concept to final production. Current design modeling software allows for part design, unit assembly, loading and dynamic simulation of a component electronically — all without the pr

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Mao, He, Guanyi Liu, Deqiang Zeng, Yaning Cao, Kai He, and Ruxu Du. "A New Design of Cycloidal Planetary Reducer With Internal Cycloidal Profile." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86184.

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Compared with other speed reducers, the two-stage cycloidal planetary one also known as RV reducer has higher precision, higher mechanical efficiency, higher loading capacity as well as long service life. These characteristics make it attractive for industrial applications, especially for robotics applications and machine tools, where high precision and large torque transmission are required. The traditional RV reducer uses cycloidal drive which is comprised of the cycloidal wheel and the pins. It has some disadvantages in the pin design, because of small clearance between the pin and the cycl

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Fatemi, Alireza, and Derek Lahr. "Cycloidal Reluctance Electric Machine." In 2020 International Conference on Electrical Machines (ICEM). IEEE, 2020. http://dx.doi.org/10.1109/icem49940.2020.9271051.

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Siegel, Stefan G., Tiger Jeans, and Thomas McLaughlin. "Intermediate Ocean Wave Termination Using a Cycloidal Wave Energy Converter." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20030.

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We investigate a lift based wave energy converter (WEC), namely, a cycloidal turbine, as a wave termination device. A cycloidal turbine employs the same geometry as the well established Cycloidal or Voith-Schneider Propeller. The interaction of intermediate water waves with the Cycloidal WEC is presented in this paper. The cycloidal WEC consists of a shaft and one or more hydrofoils that are attached eccentrically to the main shaft and can be adjusted in pitch angle as the Cycloidal WEC rotates. The main shaft is aligned parallel to the wave crests and fully submerged at a fixed depth. We show

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Shih, Yi-Pei, Shih-Hung Lo, Bor-Tyng Sheen, and Yi-Hung Tsai. "Precision Evaluation for Cycloidal Gears." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97327.

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Abstract Cycloidal gear drives have advantages of compact sizes, large reduction ratios, and low backlash. They are particularly suitable for applications in precise positioning and large output torque, such as industrial robots and machine tools. Up to now, the effective precision evaluation of cycloidal gears is lacked in commercial measuring devices. The main goal of this paper is to propose precision evaluation for cycloidal gears. The research focuses on (1) establishing a mathematical model of cycloidal gear and (2) developing a method for precision evaluation of cycloidal gear. The eval

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Monteiro, Jakson Augusto Leger, and J. Páscoa. "Effects of Harmonic Vibration on Cycloidal Rotor Performance." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87103.

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Cycloidal rotors have the inherent ability to provide vectorized thrust with fast reaction times. However, their present efficiency levels restricts their routinely use as propulsion elements for air-vehicles. Efforts have been made to improve the performance of cycloidal rotors through the optimal combination of its geometric parameters. In the present work the performance improvement of cycloidal rotors is demonstrated using a different approach, namely by imposing an unsteady change on the dynamics and structure of the vortices developed around the blades. This required change on the flow f

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Xisto, Carlos M., José C. Páscoa, M. Abdollahzadeh, et al. "PECyT - Plasma Enhanced Cycloidal Thruster." In 50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference. American Institute of Aeronautics and Astronautics, 2014. http://dx.doi.org/10.2514/6.2014-3854.

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Wang, Yukun, Guanyi Liu, Hao Yu, He Mao, Kai He, and Ruxu Du. "Analysis of Meshing Characteristics of Pins and Pin Housing Integral Structure in Cycloidal Planetary Drive." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71351.

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Precision reducer is one of the key parts of an industrial robot, which generally incorporates cycloidal planetary drive. Engagement of the cycloidal wheel and the pins causes rolling friction between the wheel and the pins as well as sliding friction between the pins and the pin housing in the traditional cycloidal transmission of the reducer. In this paper, we present a new kind of design to make the pins and the pin housing a whole structure, thereby the cost of manufacturing and assembly can be significantly reduced. And in this new structure, we only need to consider sliding friction betw

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Rapports d'organisations sur le sujet "Cycloidea"

Stefan G Siegel, Ph D. Cycloidal Wave Energy Converter. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1061484.

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Boschma, James H. Cycloidal Propulsion for UAV VTOL Applications. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada370541.

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