Academic literature on the topic 'Division Symmetry'

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Journal articles on the topic "Division Symmetry"

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LeBrasseur, Nicole. "Mirror symmetry in division." Journal of Cell Biology 177, no. 2 (2007): 186. http://dx.doi.org/10.1083/jcb.1772rr4.

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Huang, Kerwyn Casey. "Super symmetry in cell division." Nature Nanotechnology 10, no. 8 (2015): 655–56. http://dx.doi.org/10.1038/nnano.2015.148.

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Versic, Sime, Miran Pehar, Toni Modric, et al. "Bilateral Symmetry of Jumping and Agility in Professional Basketball Players: Differentiating Performance Levels and Playing Positions." Symmetry 13, no. 8 (2021): 1316. http://dx.doi.org/10.3390/sym13081316.

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Although functional asymmetry is very common and normal in professional athletes, the better interlimb symmetry between dominant and nondominant sides (bilateral symmetry) could contribute to successful performance in basketball. The aim of this study was to evaluate the importance of bilateral symmetry of the one-leg jumping and agility performances in differentiating basketball players according to their (i) playing position (guards, forwards, and centers) and (ii) performance levels (first division vs. second division). The participants were 102 professional male basketball players, with al
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Huang, Shiang, Ping Law, Karl Francis, Bernhard O. Palsson, and Anthony D. Ho. "Symmetry of Initial Cell Divisions Among Primitive Hematopoietic Progenitors Is Independent of Ontogenic Age and Regulatory Molecules." Blood 94, no. 8 (1999): 2595–604. http://dx.doi.org/10.1182/blood.v94.8.2595.420k37_2595_2604.

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We have developed a time-lapse camera system to follow the replication history and the fate of hematopoietic stem cells (HSC) at a single-cell level. Combined with single-cell culture, we correlated the early replication behavior with colony development after 14 days. The membrane dye PKH26 was used to monitor cell division. In addition to multiple, synchronous, and symmetric divisions, single-sorted CD34+/CD38− cells derived from fetal liver (FLV) also gave rise to a daughter cell that remained quiescent for up to 8 days, whereas the other daughter cell proliferated exponentially. Upon separa
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Gupta, Abhishekh, Jason Lloyd-Price, Samuel M. D. Oliveira, Olli Yli-Harja, Anantha-Barathi Muthukrishnan, and Andre S. Ribeiro. "Robustness of the division symmetry inEscherichia coliand functional consequences of symmetry breaking." Physical Biology 11, no. 6 (2014): 066005. http://dx.doi.org/10.1088/1478-3975/11/6/066005.

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Samandar Eweis, Dureen, and Julie Plastino. "Roles of Actin in the Morphogenesis of the Early Caenorhabditis elegans Embryo." International Journal of Molecular Sciences 21, no. 10 (2020): 3652. http://dx.doi.org/10.3390/ijms21103652.

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The cell shape changes that ensure asymmetric cell divisions are crucial for correct development, as asymmetric divisions allow for the formation of different cell types and therefore different tissues. The first division of the Caenorhabditis elegans embryo has emerged as a powerful model for understanding asymmetric cell division. The dynamics of microtubules, polarity proteins, and the actin cytoskeleton are all key for this process. In this review, we highlight studies from the last five years revealing new insights about the role of actin dynamics in the first asymmetric cell division of
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Majumdar, Sreemita, and Song-Tao Liu. "Cell division symmetry control and cancer stem cells." AIMS Molecular Science 7, no. 2 (2020): 82–101. http://dx.doi.org/10.3934/molsci.2020006.

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Fukushima, S. "Division-based analysis of symmetry and its application." IEEE Transactions on Pattern Analysis and Machine Intelligence 19, no. 2 (1997): 144–48. http://dx.doi.org/10.1109/34.574795.

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Zion, Emily, and Xin Chen. "Breaking symmetry: the asymmetries in epigenetic inheritance." Biochemist 43, no. 1 (2021): 14–19. http://dx.doi.org/10.1042/bio_2020_110.

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Symmetry and asymmetry are the fundamental aspects of life. Most cells within a multicellular organism contain the same genetic information, passed on from one originating cell, the zygote; however, these cells can take on a variety of different identities, with diverse appearances and functions. A fundamental question in biology ponders how cells containing identical DNA content can take on different cell identities. Epigenetic mechanisms could be the symmetry-breaking factor, as they are able to change the gene expression in cells without changing the DNA sequence. While the process of dupli
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WOEGINGER, GERHARD J. "A NOTE ON FAIR DIVISION UNDER INTERVAL UNCERTAINTY." International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 14, no. 06 (2006): 753–56. http://dx.doi.org/10.1142/s021848850600431x.

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In a recent paper [International Journal of Uncertainty, Fuzziness, and Knowledge-Based Systems 8:611–618], Yager & Kreinovich characterize a certain proportional division rule in terms of the three axioms (1) symmetry, (2) participant mergability, and (3) continuity. This technical note tightens their characterization: The proportional division rule is already fully characterized by the first two axioms (1) symmetry and (2) participant mergability.
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Dissertations / Theses on the topic "Division Symmetry"

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Strawbridge, Stanley Eugene. "Understanding the dynamics of embryonic stem cell differentiation." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/287576.

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The two defining features of mouse embryonic stem (ES) cells are self-renewal and naive pluripotency, the ability to give rise to all cell lineages in the adult body. In addition to being a unique and interesting cell type, pluripotent ES cells have demonstrated their potential for continued advancements in biomedical science. Currently, there is an improved understanding in the chemical signals and the gene regulatory network responsible for the maintenance of ES cells in the naive pluripotent state. However, less is understood about how ES cells exit pluripotency. My main aim is to study the
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Zhang, Yingxin. "Symmetric signaling by an asymmetric 1 erythropoietin : 2 erythropoietin receptor complex." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45211.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Biological Engineering Division, 2008.<br>Includes bibliographical references (p. 43-46).<br>One erythropoietin molecule binds asymmetrically to two identical receptor monomers via erythropoietin site 1 and site 2, although it is unclear how asymmetry affects receptor activation and signaling. Here we report the computational design and experimental validation of two mutant erythropoietin receptors: one that binds only to erythropoietin site 1 but not site 2, and one that binds only to site 2 but not site 1. Expression of either mutant r
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Gong, Xue. "Dynamical Systems in Cell Division Cycle, Winnerless Competition Models, and Tensor Approximations." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1458303716.

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Cicalese, Angelo. "Extended replicative-potential and increased frequency of symmetric self-renewing divisions in cancer stem cells due to attenuated p53-signaling." Thesis, Open University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520704.

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Woodford, Roger. "Prime symmetric divisor functions." Thesis, 2005. http://hdl.handle.net/2429/16789.

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In this thesis, we study a new class of divisor-related functions: the prime symmetric functions. The elementary prime symmetric functions are denned on the nonnegative integers. They take the values of the elementary symmetric functions applied to the multi-set of prime factors with repetition of an integer n. These functions are first defined i n [20]. In this thesis, we refine some of the definitions presented there, and revisit some of the key results regarding such functions. The prime symmetric functions are polynomials over Q in the elementary prime symmetric functions, with valu
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Tsai, Wan-Yu, and 蔡宛育. "Spindle Scaling and Orientation in Symmetric and Asymmetric Cell Division." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/67478467389797114286.

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碩士<br>國立臺灣大學<br>分子與細胞生物學研究所<br>104<br>During cell division, a microtubule-based macromolecular machine known as mitotic spindle plays an important role to segregate chromosomes to two daughter cells. Molecules locating at cell cortex and spindle equator regulate spindle architecture and orientation. In our study, mitotic spindles in symmetric and asymmetric cell division were investigated. Several human cancer cell lines from lung, breast and colon were chosen as models of symmetric division. By immunofluorescence, we found that the functionally selected highly invasive lung adenocarcinoma cel
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Lin, Yangsyu, and 林洋緒. "A High Speed Symmetric Time-Division Multiplexing Switch System with Virtual Output Queuing." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/82284378456145842911.

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碩士<br>國立清華大學<br>電機工程學系<br>96<br>In this thesis, we propose a high speed symmetric TDM switch system with VOQ. The STDM switch applies the architecture of the load balanced Birkhoff-von Neumann switch proposed in [10]. We fold this two-stage switch to reduce 50% hardware complexity, and then implement a 1.38 mm × 1.08 mm prototype switch fabric IC, including a full-customized 4×4 switch core, a digital switch pattern generator, and a set of CML I/O interfaces in 0.13μm CMOS technology. The digital pattern generator generates reconfigurable connection patterns for the 4×4 switch core to easily s
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Chou, Po-Jung, and 周柏融. "Exact Synthesis of Full- and Half-Symmetric Rat-Race Ring Couplers with Impedance Transformation and Arbitrary Power Division." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/tf5bqz.

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博士<br>國立交通大學<br>電信工程研究所<br>106<br>This thesis proposes the full- and half-symmetric rat-race ring hybrids/couplers, in which the impedance transformation and arbitrary power division characteristics can be implemented. The impedance transformation property implies that the input and output port impedances can be different. The arbitrary power division property implies that the power ratio at two output ports can be arbitrary values. Because of the half-symmetry, the conventional even- and odd-mode partition and corresponding analysis method cannot be applied. Two signal-excitation methods are
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Sousa, Ana Isabel Varejão Lima de. "Senescência em bactérias." Master's thesis, 2013. http://hdl.handle.net/10284/7049.

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A senescência apresenta-se como um processo metabolicamente ativo, desencadeado por múltiplos fatores, limitando o tempo de vida, uma vez que quando a célula entra em processo de senescência perde irreversivelmente a capacidade de proliferar. As bactérias eram consideradas microrganismos potencialmente imortais devido à sua reprodução assexuada por fissão binária. Contudo, estudo realizados quer com bactérias que sofrem divisão assimétrica (Caulobacter crescentus), quer com bactérias onde a divisão é aparentemente simétrica (Escherichia coli), demonstram que os seus constituintes celulares não
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Gauthier, Andree S. "Molecular Mechanisms Regulating Fate Determination of Cerebral Cortex Precursors." Thesis, 2009. http://hdl.handle.net/1807/17765.

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During development of the mammalian nervous system, neural stem cells generate neurons first and glia second, thereby allowing the initial establishment of neuronal circuitry, and subsequent matching of glial numbers and position to that circuitry. Multiple molecular mechanisms act in concert to control neural precursor expansion prior to neurogenesis, and to allow for an exponential generation of neurons while ensuring the maintenance of sufficient precursors to produce later-born neurons, glial cells and adult neural stem cells. Throughout cortical development, these processes are regulated
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Books on the topic "Division Symmetry"

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Addis, E. Gender symmetry in the reform of European welfare states. European University Institute, Robert Schuman Centre, 2002.

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H, Albright Carl, ed. The Fermilab meeting, DPF 92: 7th Meeting of the American Physical Society Division of Particles and Fields : 10-14 November 1992, Fermi National Accelerator Laboratory, Batavia, Illinois. World Scientific, 1993.

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Thurston, Gaylen A. Solution ofthe symmetric Eigenproblem AX=(Lambda)BX by delayed division. Langley Research Center, 1986.

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Symmetry breaking in biology. Cold Spring Harbor Laboratory Press, 2010.

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1967-, Li Rong, and Bowerman Bruce 1959-, eds. Symmetry breaking in biology. Cold Spring Harbor Laboratory Press, 2010.

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(Editor), John Yoh, ed. The Fermilab Meeting Dpf 92: 7th Meeting of the American Physical Society Division of Particles and Fields : 10-14 November 1992. World Scientific Pub Co Inc, 1993.

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C, Bains Nancy J., and United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch, eds. Solution of the symmetric eigenproblem AX=[lambda]BX by delayed division. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1986.

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Book chapters on the topic "Division Symmetry"

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Dixon, Geoffrey M. "Spontaneous Symmetry Breaking." In Division Algebras. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4757-2315-1_5.

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Dixon, Geoffrey. "Tensored Division Algebras: Origin of Geometry, Spinors and Symmetry." In Spinors, Twistors, Clifford Algebras and Quantum Deformations. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1719-7_8.

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Mizukawa, Benjamin, Eric O’Brien, James C. Mulloy, and Yi Zheng. "Cell Polarity and Division Symmetry Analyses in Transformed Blood Cells." In Methods in Molecular Biology. Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-8612-5_18.

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Dudka, Damian, and Patrick Meraldi. "Symmetry Does not Come for Free: Cellular Mechanisms to Achieve a Symmetric Cell Division." In Results and Problems in Cell Differentiation. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-53150-2_14.

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Enderling, Heiko. "Symmetric Cell Division." In Encyclopedia of Systems Biology. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4419-9863-7_1532.

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Sánchez-Taltavull, Daniel, and Tomás Alarcón. "Symmetric Division Model of Cell Differentiation Systems." In Trends in Mathematics. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08138-0_14.

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Roig-Francolí, Miguel A. "Pitch Centricity, Equal Divisions of the Octave, and Symmetry." In Understanding Post-Tonal Music, 2nd ed. Routledge, 2021. http://dx.doi.org/10.4324/9780429340123-3.

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Ishikawa, Yusuke, Junichi Tamura, Yutaka Kuwajima, and Takaomi Shigehara. "Automatic Tuning of the Division Number in the Multiple Division Divide-and-Conquer for Real Symmetric Eigenproblem." In Software Automatic Tuning. Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-6935-4_6.

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Machida, Keigo. "NANOG-Dependent Metabolic Reprogramming and Symmetric Division in Tumor-Initiating Stem-like Cells." In Advances in Experimental Medicine and Biology. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98788-0_8.

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Masood, Talha Bin, and Ingrid Hotz. "Continuous Histograms for Anisotropy of 2D Symmetric Piece-Wise Linear Tensor Fields." In Mathematics and Visualization. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-56215-1_3.

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AbstractIn this chapter we present an accurate derivation of the distribution of scalar invariants with quadratic behavior represented as continuous histograms. The anisotropy field, computed from a two-dimensional piece-wise linear tensor field, is used as an example and is discussed in all details. Histograms visualizing an approximation of the distribution of scalar values play an important role in visualization. They are used as an interface for the design of transfer-functions for volume rendering or feature selection in interactive interfaces. While there are standard algorithms to compute continuous histograms for piece-wise linear scalar fields, they are not directly applicable to tensor invariants with non-linear, often even non-convex behavior in cells when applying linear tensor interpolation. Our derivation is based on a sub-division of the mesh in triangles that exhibit a monotonic behavior. We compare the results to a naïve approach based on linear interpolation on the original mesh or the subdivision.
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Conference papers on the topic "Division Symmetry"

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Battaglia, Francine, and George Papadopoulos. "Bifurcation Characteristics of Flows in Rectangular Sudden Expansion Channels." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77098.

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The effect of three-dimensionality on low Reynolds number flows past a symmetric sudden expansion in a channel was investigated. The geometric expansion ratio of in the current study was 2:1 and the aspect ratio was 6:1. Both experimental velocity measurements and two- and three-dimensional simulations for the flow along the centerplane of the rectangular duct are presented for Reynolds numbers in the range of 150 to 600. Comparison of the two-dimensional simulations with the experiments revealed that the simulations fail to capture completely the total expansion effect on the flow, which coup
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Parra, Lorena, and J. David Vergara. "Symmetry analysis for anisotropic field theories." In IX WORKSHOP OF THE GRAVITATION AND MATHEMATICAL PHYSICS DIVISION OF THE MEXICAN PHYSICAL SOCIETY. AIP, 2012. http://dx.doi.org/10.1063/1.4748560.

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Mo, Gary C. H., and Daniel Y. Kwok. "Self-Breakup of Microdroplets by Molecular Self-Assembly." In ASME 3rd International Conference on Microchannels and Minichannels. ASMEDC, 2005. http://dx.doi.org/10.1115/icmm2005-75179.

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We report a method of producing minute micro-droplets through nanoscale molecular self-assembly from a given liquid volume without external input. By the branching of hydrophobic restrictions, the drop is forced to separate while translating on a flat surface. Symmetry in the drop front wetted perimeter conduces to equal division of the drop. We show that at least 3 divisions can be performed sequentially on a 1.5 microliter drop to give minute droplets of approximately equal volumes. A division of carrier liquid volume by 1/23 enables multiple analyses on many separate stations in one microfl
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Zhong, Wen-De, Chen Chen, and Dehao Wu. "Non-Hermitian symmetry OFDM for indoor space division multiplexing visible light communications." In 2016 18th International Conference on Transparent Optical Networks (ICTON). IEEE, 2016. http://dx.doi.org/10.1109/icton.2016.7550288.

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Eckstein, Eugene C., Vinay Bhal, JoDe M. Lavine, Baoshun Ma, Mark Leggas, and Jerome A. Goldstein. "Nested First-Passages of Tracer Particles in Flows of Blood and Control Suspensions: Symmetry and Lorentzian Transformations." In ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69549.

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Theory of molecular Taylor-Aris dispersion (TAD) is an accepted framework describing tracer dispersion in suspension flows and determining effective diffusion coefficients. Our group reported a pseudo-Lagrangian method to study dispersion in suspension flows at FEDSM-2000. Tracer motions were studied in a steadily moving inertial reference frame (SMIRF) aligned with the flow direction; increments of change of axial position of individual tracers were collected to demonstrate how the tracer moved as they, individually, interacted with similar collections of other bodies brought to and from the
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Mavuri, Satya P., Simon Watkins, and Jon Watmuff. "A Novel Mirror-Image Technique for Wheel and Ground Simulation in Automotive Wind-Tunnels." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77102.

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A novel method for simulating the relative motions of the wheels and moving ground for road vehicle aerodynamics is presented. The method revisits an old concept where two identical vehicles are used and positioned so that they are mirror images, with the ground being represented by the horizontal plane of symmetry. The method involves double symmetry, where two half models (e.g. a car split down the vertical centerline) contact at the rotating wheel contact patches and the resulting (opened) vehicle halves lie on a reflection plane. This can either be the tunnel floor or the equivalent CFD pl
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Dawson, Scott T. M., and Clarence W. Rowley. "Video: Wakes awakening: Start-up and symmetry breaking of flow past multiple flat plates." In 67th Annual Meeting of the APS Division of Fluid Dynamics. American Physical Society, 2014. http://dx.doi.org/10.1103/aps.dfd.2014.gfm.v0082.

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Agelinchaab, M., and M. F. Tachie. "Characteristics of 3D Turbulent Wall Jets and Offset Jets With Small Offset Ratios." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78540.

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This paper reports an experimental study of turbulent three-dimensional generic wall jets and offset jets. The jets were created from a long circular pipe. A particle image velocimetry technique was used to conduct velocity measurements in the symmetry plane of the jet. From these measurements, the salient features of the flows are reported in terms of the mean velocities, turbulence intensities and Reynolds shear stresses. The energy spectra and profiles of reconstructed turbulence intensities and Reynolds shear stresses from low order proper orthogonal decomposition modes are also reported.
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Salvetti, Maria Vittoria, Alessandro Mariotti, Chiara Galletti, and Elisabetta Brunazzi. "Experimental and Numerical Analyses of Unsteady Flow Regimes and Mixing in a Micro T-Mixer." In ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fedsm2018-83459.

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Despite the very simple geometry, T-shaped micro-mixers are characterized by different and complex laminar flow regimes. In the present work, experiments and direct numerical simulations are employed jointly to investigate unsteady periodic flow regimes, viz. the asymmetric and symmetric regimes. The first is characterized by a periodic dynamics of the three-dimensional structures and by a high degree of mixing, while in the second the flow always maintains a double mirror symmetry in the mixing channel, which causes a dramatic decrease of the mixing performance. A methodology, allowing us to
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Le Bot, Ce´dric, and Eric Arquis. "Direct Numerical Simulation of the Manufacturing of a Coating on a Substrate by Projection." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31453.

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The purpose of this paper is to simulate numerically the impact of droplets onto a substrate to give a better knowledge of coating manufacturing. A 2D model is proposed, with symmetry conditions to simulate the impact of an infinity of identical droplets. The dynamic behavior is studied, and a thermal study of superimposed splats is added separately to give a better understanding of each phenomenon.
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