Relevant bibliographies by topics / Derive pole

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

Academic literature on the topic 'Derive pole'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Derive pole"

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Baum, Eckhard, and Stefan Eberhardt. "Eddy current brake with two pole pairs." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 28, no. 1 (January 2, 2009): 67–76. http://dx.doi.org/10.1108/03321640910918878.

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PurposeThe purpose of this paper is to derive a force‐velocity characteristic for an eddy current brake with minor computational effort.Design/methodology/approachThe speed range is split into two domains. While in the low‐speed domain it is possible to achieve a closed form expression for the force‐velocity characteristic in the high‐speed region approximations have to be introduced.FindingsThe derived relation for the force‐velocity characteristic has been compared with measurement results. The comparison shows that the approach yields good results for not too large air gaps.Originality/valueA combination of analytical and approximative methods has been used for the determination of the force‐velocity characteristic of an eddy current brake with two pole pairs.
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Richa and Awadhesh Kumar. "Dominant Pole Based Approximation for Discrete Time System." International Journal of Mathematical, Engineering and Management Sciences 4, no. 1 (February 1, 2019): 56–65. http://dx.doi.org/10.33889/ijmems.2019.4.1-005.

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This paper presents an effective procedure for model order reduction of discrete time control system. The exact model derived from complex dynamic systems proves to be very complicated for analysis, control and design. This necessity brings about using a tool known as model order reduction technique or model simplification. A novel mixed method has been implemented in this paper for reducing the order of the large scale dynamic discrete system. Dominant pole based pole clustering method has been used to derive the coefficients of denominator polynomial while Padé approximation has been applied to obtain the coefficients of numerator polynomial of the reduced order model. The proposed method is quite simple and able to generate a stable reduced order model from high order stable discrete systems. The dominancy of poles has been decided by values of the ratio of residue to its pole. The pole is considered dominant which have larger ratio value. An illustrative example has been considered to show the various reduction steps. The result obtained confirms the effectiveness of the approach.
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Moale, Ionela, and Veronika Pillwein. "A note on uniform approximation of functions having a double pole." LMS Journal of Computation and Mathematics 17, no. 1 (2014): 233–44. http://dx.doi.org/10.1112/s1461157013000387.

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AbstractWe consider the classical problem of finding the best uniform approximation by polynomials of$1/(x-a)^2,$where$a>1$is given, on the interval$[-\! 1,1]$. First, using symbolic computation tools we derive the explicit expressions of the polynomials of best approximation of low degrees and then give a parametric solution of the problem in terms of elliptic functions. Symbolic computation is invoked then once more to derive a recurrence relation for the coefficients of the polynomials of best uniform approximation based on a Pell-type equation satisfied by the solutions.
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Savyolova, T. I. "Determination of Domains of Dependence Through the Solution of an Ultrahyperbolic Differential Equation." Textures and Microstructures 25, no. 2-4 (January 1, 1996): 183–95. http://dx.doi.org/10.1155/tsm.25.183.

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Pole figures are represented as the sum of solutions of two ultrahyperbolic differential equations. We derive the domains of dependence for pole figures and apply the method of continuation to solve the ultrahyperbolic equations.
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Silva, José Sergio, Daniela Lazzaro, Teresinha Rodrigues, Jorge Márcio Carvano, Fernando Roig, and Roberto Souza. "The IMPACTON Project: Pole and Shape of Eight Near-Earth Asteroids." Proceedings of the International Astronomical Union 10, S318 (August 2015): 181–84. http://dx.doi.org/10.1017/s1743921315008637.

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AbstractThe formation and evolution of Solar System small bodies, in particular those in near-Earth orbits, is a complex problem which solution strongly depends on a better knowledge of their physical properties. To contribute to the international efforts in this direction the IMPACTON project (www.on.br/IMPACTON) set up a dedicated facility denominated Observatório Astronômico do Sertão de Itaparica (OASI). Using the 1-m telescope several dozens of NEAs were observed between March 2012 and October 2014. Here we will present the results obtained for 8 objects. Relative magnitudes were used to obtain lightcurves and derive rotational periods. Applying the inversion method developed by Kaasalainen and Torppa (2001) and Kaasalainen et al. (2001), along with lightcurves from literature, allowed to refine the rotational period of these asteroids as well as to derive their pole direction and shape. The obtained results confirm a lack of poles toward the ecliptic and with a majority of retrograde rotators. A more representative sample, however, is needed in order to drive robust conclusions.
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Wofsy, S. C. "HIAPER Pole-to-Pole Observations (HIPPO): fine-grained, global-scale measurements of climatically important atmospheric gases and aerosols." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 369, no. 1943 (May 28, 2011): 2073–86. http://dx.doi.org/10.1098/rsta.2010.0313.

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The HIAPER Pole-to-Pole Observations (HIPPO) programme has completed three of five planned aircraft transects spanning the Pacific from 85° N to 67° S, with vertical profiles every approximately 2.2° of latitude. Measurements include greenhouse gases, long-lived tracers, reactive species, O 2 /N 2 ratio, black carbon (BC), aerosols and CO 2 isotopes. Our goals are to address the problem of determining surface emissions, transport strength and patterns, and removal rates of atmospheric trace gases and aerosols at global scales and to provide strong tests of satellite data and global models. HIPPO data show dense pollution and BC at high altitudes over the Arctic, imprints of large N 2 O sources from tropical lands and convective storms, sources of pollution and biogenic CH 4 in the Arctic, and summertime uptake of CO 2 and sources for O 2 at high southern latitudes. Global chemical signatures of atmospheric transport are imaged, showing remarkably sharp horizontal gradients at air mass boundaries, weak vertical gradients and inverted profiles (maxima aloft) in both hemispheres. These features challenge satellite algorithms, global models and inversion analyses to derive surface fluxes. HIPPO data can play a crucial role in identifying and resolving questions of global sources, sinks and transport of atmospheric gases and aerosols.
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Lescroart, Fabienne, Wissam Hamou, Alexandre Francou, Magali Théveniau-Ruissy, Robert G. Kelly, and Margaret Buckingham. "Clonal analysis reveals a common origin between nonsomite-derived neck muscles and heart myocardium." Proceedings of the National Academy of Sciences 112, no. 5 (January 20, 2015): 1446–51. http://dx.doi.org/10.1073/pnas.1424538112.

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Neck muscles constitute a transition zone between somite-derived skeletal muscles of the trunk and limbs, and muscles of the head, which derive from cranial mesoderm. The trapezius and sternocleidomastoid neck muscles are formed from progenitor cells that have expressed markers of cranial pharyngeal mesoderm, whereas other muscles in the neck arise from Pax3-expressing cells in the somites. Mef2c-AHF-Cre genetic tracing experiments and Tbx1 mutant analysis show that nonsomitic neck muscles share a gene regulatory network with cardiac progenitor cells in pharyngeal mesoderm of the second heart field (SHF) and branchial arch-derived head muscles. Retrospective clonal analysis shows that this group of neck muscles includes laryngeal muscles and a component of the splenius muscle, of mixed somitic and nonsomitic origin. We demonstrate that the trapezius muscle group is clonally related to myocardium at the venous pole of the heart, which derives from the posterior SHF. The left clonal sublineage includes myocardium of the pulmonary trunk at the arterial pole of the heart. Although muscles derived from the first and second branchial arches also share a clonal relationship with different SHF-derived parts of the heart, neck muscles are clonally distinct from these muscles and define a third clonal population of common skeletal and cardiac muscle progenitor cells within cardiopharyngeal mesoderm. By linking neck muscle and heart development, our findings highlight the importance of cardiopharyngeal mesoderm in the evolution of the vertebrate heart and neck and in the pathophysiology of human congenital disease.
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Halder, Kaushik, Saptarshi Das, and Amitava Gupta. "Transformation of LQR Weights for Discretization Invariant Performance of PI/PID Dominant Pole Placement Controllers." Robotica 38, no. 2 (May 14, 2019): 271–98. http://dx.doi.org/10.1017/s0263574719000596.

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SummaryLinear quadratic regulator (LQR), a popular technique for designing optimal state feedback controller, is used to derive a mapping between continuous and discrete time inverse optimal equivalence of proportional integral derivative (PID) control problem via dominant pole placement. The aim is to derive transformation of the LQR weighting matrix for fixed weighting factor, using the discrete algebraic Riccati equation (DARE) to design a discrete time optimal PID controller producing similar time response to its continuous time counterpart. Continuous time LQR-based PID controller can be transformed to discrete time by establishing a relation between the respective LQR weighting matrices that will produce similar closed loop response, independent of the chosen sampling time. Simulation examples of first/second order and first-order integrating processes exhibiting stable/unstable and marginally stable open loop dynamics are provided, using the transformation of LQR weights. Time responses for set-point and disturbance inputs are compared for different sampling times as fraction of the desired closed loop time constant.
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WERNER, ULRICH. "THEORETICAL VIBRATION ANALYSIS OF SOFT MOUNTED TWO-POLE INDUCTION MOTORS WITH STATIC ROTOR ECCENTRICITY." International Journal of Applied Mechanics 03, no. 01 (March 2011): 131–59. http://dx.doi.org/10.1142/s1758825111000919.

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The paper shows a mathematical model for vibration analysis of soft mounted two-pole induction motors regarding electromagnetic excitation due to static rotor eccentricity. A static rotor eccentricity causes an electromagnetic force, acting on the rotor and on the stator and oscillating with the double supply frequency. This magnetic force is implemented into a simplified analytical machine dynamic model and the correlations between the rotor dynamics, electromagnetic, oil film characteristics of the sleeve bearings, and the stiffness and damping of a soft foundation are mathematically described. The derived results are clarified using an example that shows the influence of the rotor speed and the direction of the magnetic force on the vibration behavior. On one hand the aim of the paper is to show the mathematical correlations, based on a simplified model. On the other hand, the aim is to derive a method for calculating the forced vibrations — as a worst case — caused by a static rotor eccentricity. Therefore, the paper shall prepare the basis for implementing this method in more detailed numerical programs, e.g., finite element programs.
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Gläser, P., I. Haase, and J. Oberst. "A NEW REALIZATION OF THE GLOBAL LUNAR REFERENCE FRAME BASED ON CO-REGISTERED LOLA TRACKS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3 (April 30, 2018): 397–401. http://dx.doi.org/10.5194/isprs-archives-xlii-3-397-2018.

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We present a method that aligns lunar south and north pole LOLA DTMs using selected LOLA tracks and co-registration techniques. The selected LOLA tracks were then co-registered to the aligned polar DTMs with the aim to create a new LOLA frame of high relative accuracy. At the poles the relative accuracy of the resulting LOLA frame improved in comparison with the original LOLA frame, especially at the north pole. At lower latitudes on the lunar near side we could show that we achieve smaller residuals between our LOLA frame and a photogrammetrically derived reference DTM than with the original LOLA frame. On the far side we could not achieve better results which we believe is stemming from the generally less accurate orbit knowledge there. From the aligned polar DTMs we were able to derive a polar radius of 1738,049 km.
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Dissertations / Theses on the topic "Derive pole"

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Gallet, Yves. "La magnetostratigraphie : aspects fondamentaux et appliques." Paris 7, 1988. http://www.theses.fr/1988PA077056.

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Une eetude magnetostratigraphique de la limite jurassique/cretace au maroc permet de discuter les possibilites de correlation stratigraphique en l'absence d'une biostratigraphie bien etablie. Avec des donnees du forage de cony, on met en evidence des series triasiques et permiennes. Les resultats paleomagnetiques permettent de preciser la derive des poles magnetiques de l'eurasie. On modelise aussi le champ magnetique a l'interieur d'un forage
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CAMMAS, SANDRINE. "Le poly (acide beta-malique) et ses derives : synthese et caracterisation." Paris 6, 1993. http://www.theses.fr/1993PA066328.

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L'interet recent pour le devenir des polymeres dans l'environnement fait de la biodegradation une propriete necessaire pour certaines utilisations, mais sa realisation n'est pas evidente. Cependant, l'interet pour de telles structures macromoleculaires, destinees a disparaitre apres une utilisation temporaire, est reconnu depuis plus de dix ans en chirurgie et en pharmacologie. Dans le domaine pharmaceutique, la synthese de nouvelles formes galeniques necessite le developpement de nouveaux polymeres possedant des specifications tres strictes. C'est pourquoi, m. Vert et r. W. Lenz ont choisi le poly (acide beta-malique), polymere correspondant aux specifications des materiaux bioresorbables pour des utilisations therapeutiques temporaires. Le poly (acide beta-malique) est le parent d'une large famille de derives grace a la presence de la fonction acide carboxylique laterale. Plus particulierement, l'introduction de fonctions esters laterales est tres interessante pour modifier la balance hydrophobe/hydrophile des derives et ainsi modifier et ajuster les proprietes telles que la solubilite et la degradation en fonction du nombre et de la repartition de ces groupes dans la chaine. Les proprietes physico-chimiques du materiau peuvent etre egalement modulees en jouant sur la composition enantiomerique du carbone asymetrique de la chaine principale et par l'introduction d'un second centre de chiralite dans la chaine laterale ou principale. Ce memoire presente la synthese et la caracterisation (masses, structure) du poly (acide beta-malique) et de ses derives ainsi que l'etude d'un poly (acide malique) naturel mis en evidence dans un microorganisme
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Dolman, Richard. "Physical properties derived from seismic modelling at the toe of the Barbados accretionary complex." Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364522.

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Ohgi, Hiroyuki. "Studies on Synthesis and Physical Properties of Highly Isotactic Poly(vinyl alcohol) Derived from Poly(tert-butyl vinyl ether)." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/57290.

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Pena, Paula Cristina de Aguiar. "Semi-pinacol rearrangements of epoxy tertiary alcohols derived using poly-L-leucine methodology." Thesis, University of Liverpool, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272797.

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Renard, Isabelle. "Derives du poly(acide beta-malique) : modulation des proprietes par modification de leurs structures." Paris 6, 1995. http://www.theses.fr/1995PA066447.

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Quel que soit le domaine d'utilisation des polymeres, l'ajustement necessaire des proprietes du materiau a une application choisie implique l'elargissement du spectre des polymeres disponibles. Les polymeres biodegradables ont un interet tout particulier pour un secteur industriel important: le biomedical. Les normes pour ce domaine sont strictement controlees et le cahier des charges est bien precis pour chaque application. Dans la partie bibliographique de ce memoire, nous abordons le probleme des prodrogues macromoleculaires: leur place dans la liberation controlee des molecules therapeutiquement actives, les types de polymeres utilises, la presence d'un groupement espaceur pour faciliter le relargage de la drogue, les possibilites de ciblage pour augmenter l'efficacite du medicament. Le travail de recherche est divise en deux parties. La premiere presente la synthese des derives du poly(acide beta-malique) possedant des unites malates d'alkyle dont le groupement alkyle est peu encombrant. Ces polymeres passent par la synthese de beta-lactones beta-substituees. L'acces a ces monomeres varie en fonction du substituant et necessite la mise au point de voies de syntheses particulieres. Divers mecanismes sont proposes afin d'expliquer les reactions qui peuvent intervenir et empecher dans certains cas l'acces aux monomeres. L'obtention d'homo ou de copolymeres de hautes masses molaires possedant des groupements peu encombrants varie egalement en fonction de l'encombrement du groupement alkyle, ce qui fait intervenir des reactions de transfert. Neanmoins, les polymeres de masses molaires faibles ou moyennes sont utilises en tant que modele pour la synthese de prodrogues macromoleculaires. La derniere partie est consacree a la synthese et a l'etude du poly(acide beta-3-methylmalique). Ce nouveau polyester de type poly(beta-hydroxy acide) elargit la famille des derives du poly(acide beta-malique) en permettant le faconnage de polystereoisomeres possedant simultanement, sur la chaine macromoleculaire, deux centres stereogenes, des groupements alkyles hydrophobes et des fonctions acides carboxyliques hydrophiles
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Rebourt, Eymard. "Vers des polymères conducteurs tridimensionnels : préparation et caractérisation de poly(n-octyl-3-thiophènes) réticulés totalement conjugués." Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE10182.

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Il nous a paru interessant de jouer sur la dimensionnalite des polymeres conducteurs electroniques afin d'obtenir des materiaux dont les proprietes (notamment la conductivite) seraient particulieres. D'ou l'idee de preparer des structures totalement conjuguees de dimension fractale voire tridimensionnelles. Pour obtenir ces structures, nous avons reticule des chaines de poly(n-octyl-3-thiophene) avec quatre types de trithienylbenzenes prealablement prepares et caracterises: le tri(thienyl-2)-1,3,5-benzene, le tri(thienyl-2)-1,2,4-benzene, le tri(thienyl-3)-1,3,5-benzene et le tri(thienyl-3)-1,2,4-benzene. La reactivite des quatre types de points de reticulation a ete etudiee. Pour cela, des copolymeres ont ete prepares avec les quatre differents points de reticulation deuteries sur les positions supposees reactives. L'etude par spectroscopie ir des copolymeres ainsi obtenus a permis de determiner des pourcentages de positions supposees reactives des points de reticulation ayant effectivement reagi pendant la copolymerisation. 22 copolymeres ont ete prepares en faisant varier la teneur r en point de reticulation dans le melange reactionnel. Lorsque seule une fraction soluble est obtenue, la caracterisation du copolymere est tres delicate. En revanche, lorsque nous obtenons une fraction soluble et une fraction insoluble, en faisant l'hypothese que tous les points de reticulation sont presents uniquement dans la fraction insoluble, nous pouvons determiner des valeurs limites superieures de r dans les fractions insolubles. Ces copolymeres insolubles presentent des conductivites en continu semblables a celle du poly(n-octyl-3-thiopene). Ce sont des gels dont le taux de gonflement varie lineairement en fonction de l'inverse de r, ce qui est l'indice que la repartition des points de reticulation dans les copolymeres est homogene. Les fractions insolubles ont ete caracterisees par differentes methodes: ir, dsc, diffraction des rayons x, rpe
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BOUTAULT-CHENON, KARINE. "Synthese et caracterisation de derives du poly(acide b-malique) presentant deux centres de chiralite." Nantes, 1995. http://www.theses.fr/1995NANT2081.

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L'utilisation des ressources renouvelables du gisement naturel que constitue la biomasse peut etre un moyen d'acces a de nouvelles molecules monomeres et donc a de nouveaux materiaux polymeres. Nous avons choisi de partir de l'acide threo (2s,3s)-3-isopropylaspartique obtenu par bioconversion sous l'action de la b-methylaspartase, pour preparer la lactone monomere (3s,4r)-3-isopropyl-4-benzyloxycarbonyl-2-oxetanone qui est ensuite polymerisee anioniquement par ouverture de cycle en poly(threo-(2s,3s)-b-3-isopropylmalate de benzyle). Ce polymere est ensuite deprotege par hydrogenolyse catalytique, specifique du groupement benzyle, pour conduire au poly(threo(2s,3s)-acide-b-3-isopropylmalique). L'interet de ces nouveaux polyesters degradables optiquement actifs est evident: non seulement ils peuvent etre hydrolyses avec des vitesses de degradation variables grace a la presence des deux centres asymetriques, mais la fonction acide laterale peut conduire a des multimeres fonctionnalises. Nous avons elargi la gamme des polymeres derives de l'acide malique en synthetisant des poly(b-malate d'alkyles) presentant deux centres de chiralite. Les differents polystereoisomeres du poly(b-malate de 2-butyle) et du poly(b-malate de 3,3-dimethyl-2-butyle) ont ete prepares et caracterises
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ALGARRA, LIONEL. "Amines grasses (poly)glycerylees et derives : syntheses, caracterisations fondamentales, et evaluation de leur potentiel industriel." Rennes 1, 1999. http://www.theses.fr/1999REN10131.

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Les tensioactifs glyceryles constituent une classe d'amphiphiles non ioniques appelee a remplacer les derives ethoxyles dans le cadre d'une eventuelle modification de la legislation en matiere de toxicite et de biodegradabilite. Les ethers et esters de glycerol etant largement decrits, nous nous sommes orientes vers l'etude d'amines grasses glycerylees. La premiere partie de ce memoire presente les syntheses d'amphiphiles mono- et bicatenaires. La strategie employee utilise des synthons polyglycerol et permet d'acceder a des amines polyglycerylees definies, et non a des melanges ayant une distribution statistique du nombre de motifs glycerol. Pour developper l'interet industriel de ces composes, l'optimisation des voies de syntheses et la preparation de nouveaux derives bicatenaires sont decrites. Les amines glycerylees interviennent alors comme intermediaires pour l'obtention de catanioniques et de pseudoceramides. La caracterisation des systemes moleculaires organises formes par les amphiphiles glyceryles necessite des methodes d'analyses physico-chimiques dont les principes sont rappeles dans la deuxieme partie. Les resultats de ces etudes sont presentes dans la derniere partie pour les trois familles. Les amines grasses monocatenaires possedent un bon pouvoir tensioactif, et des proprietes cristallines liquides qui peuvent etre exploitees pour la synthese de solides mesoporeux. De plus leur comportement en formulation peut etre module par plusieurs parametres. Les catanioniques glyceryles sont des cristaux liquides amphotropes, qui conduisent a la formation de nombreux types de phases lamellaires et de liposomes. Les amphiphiles glyceryles etudies presentent des caracteristiques interessantes pour des applications en detergence, en cosmetique ou en pharmacie. Leurs bonnes proprietes tensioactives et cristallines liquides en font des concurrents des composes ethoxyles, en particulier dans les domaines ou leur caractere biodegradable represente un atout supplementaire.
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Lavoie, Jean-Michel. "Mammalian cell culture on poly (dimethyl siloxane) functionalized for covalent immobilization of extracellular matrix-derived proteins." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116017.

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In vitro cell culture is an essential part of many cell and tissue engineering approaches. In particular, monolayer culture of mammalian cells is a key tool for applications such as cell therapy. Novel bioreactors like the Cellerator(TM) allow for expansion of cell populations on mechanically stimulated surfaces coated with proteins. This thesis constitutes a preliminary study which focused on cell-matrix interactions in the absence of stretch. The aim was to establish standard protocols for protein coating on poly (dimethyl siloxane) (PDMS) and for measuring cell proliferation. Specifically, the proliferation of rat pulmonary artery vascular smooth muscle (PAC1) cells on type I collagen and soluble fibronectin was studied. Growth curves were obtained and the doubling time for subconfluent cultures was computed. Although cell-matrix interactions do not enhance proliferation of PAC1 cells, it was found that a preliminary sulphuric acid treatment is necessary to yield a well-behaved culture.
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Books on the topic "Derive pole"

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Kraeuter, David W. Photograph and street address locator for Boyd Crumrine's Art Work of Washington Co., Pennsylvania: Derived from the R.L. Polk Washington directories and other sources. Washington, Pa: U. Grant Miller Library, Washington and Jefferson College, 1986.

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van Wijk, Bram, Phil Barnett, and Maurice J. B. van den Hoff. The developmental origin of myocardium at the venous pole of the heart. Edited by José Maria Pérez-Pomares, Robert G. Kelly, Maurice van den Hoff, José Luis de la Pompa, David Sedmera, Cristina Basso, and Deborah Henderson. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198757269.003.0008.

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The focus of this chapter is an evaluation of the developmental origin of the myocardial component of the venous pole. The venous pole has a complex morphological architecture, reflecting its embryological and evolutionary development from several component parts. We describe the developmental changes observed in the architecture of the inflow of the heart and the large vessels that drain into the venous pole. As the formation of the proepicardium and the epicardial-derived cells are intimately connected to the forming inflow, this topic will also be covered. We compare the development of the inflow in chicken, mouse, and human. We then review the results obtained using the two-component genetic mouse system Cre-LoxP with respect to the myocardial components added to the forming cardiac inflow. These data are discussed within the now discriminated first, second, and third heart fields.
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Vaez-Zadeh, Sadegh. Machine Modeling. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198742968.003.0002.

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This chapter presents dynamic and steady-state modeling of permanent magnet synchronous (PMS) machines with the help of reference frames. The modeling starts with a machine model in terms of phase variables. An equivalent two-axis model in a stationary reference is then obtained by a reference frame transformation. A further transformation to a two-axis rotor reference frame, with its direct axis aligned with the axis of a permanent magnet rotor pole, is derived. Another transformation to a two-axis stator flux linkage reference frame is also presented. Finally, a motor model in polar coordinates, based on space vector theory, is developed. In this chapter, PMS motor equivalent circuits are drawn, based on the mathematical models where appropriate. Iron losses and iron saturation are also taken into the models. The chapter ends with a brief presentation of the dynamic equation of PMS machines mechanical parts.
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Mendelovici, Angela. Nonconscious States. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190863807.003.0008.

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Nonconscious states, like standing beliefs and nonconscious states involved in early visual processing, pose a challenge for PIT: They seem to be intentional but not phenomenal. This chapter addresses this challenge. It begins by considering versions of PIT that take nonconscious states to have derived intentionality, arguing that none of the suggested derivation mechanisms is up to the task of generating new instances of intentionality. This chapter then recommends an alternative treatment of nonconscious states on which neither standing states nor most nonconscious occurrent states are genuinely intentional, though the self-ascriptivist view described in Chapter 7 might be extended to accommodate some standing state contents, and perhaps even standing states in their entirety. This chapter also suggests that some nonconscious occurrent states might have phenomenal properties we are not aware of and so might have phenomenal intentionality we are also not aware of.
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Swiney, Lauren. Activity, Agency, and Inner Speech Pathology. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198796640.003.0013.

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Over the last thirty years the comparator hypothesis has emerged as a prominent account of inner speech pathology. This chapter discusses a number of cognitive accounts broadly derived from this approach, highlighting the existence of two importantly distinct notions of inner speech in the literature; one as a prediction in the absence of sensory input, the other as an act with sensory consequences that are themselves predicted. Under earlier frameworks in which inner speech is described in the context of classic models of motor control, I argue that these two notions may be compatible, providing two routes to inner speech pathology. Under more recent accounts grounded in the architecture of Bayesian predictive processing, I argue that “active inference” approaches to action generation pose serious challenges to the plausibility of the latter notion of inner speech, while providing the former notion with rich explanatory possibilities for inner speech pathology.
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Mendes, Maria Sequeira. As Ordálias da Interpretação. Imprensa da Universidade de Coimbra, 2020. http://dx.doi.org/10.14195/978-989-26-1958-3.

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Ordálias da Interpretação analisa ordálias medievais, a leitura de dados no polígrafo e alguns métodos de tortura, ao mesmo tempo que lê textos como Hamlet e Macbeth. Este livro descreve a ambição por uma pedra de toque que demonstre a veracidade, ou autenticidade, de certas entidades. De notar que pedra-de-toque – basanos (Βάσαυος) – era um termo usado para denominar a pedra com que se testava em contextos mercantis a qualidade do ouro, mas que designava igualmente a ideia de teste, tortura e torturador. Para os intérpretes mencionados neste livro, a pedra de toque, que pode ser um objecto, uma pessoa ou um teste, teria a capacidade de nos auxiliar a distinguir amigos de inimigos, de identificar a qualidade de alguns versos e de iluminar a verdade. Argumenta-se, todavia, que a capacidade de fazer juízos precisos deriva de um entendimento técnico de interpretação conduzida por indivíduos hábeis, observando-se que a capacidade de descobrir “a verdade” depende da perícia de cada examinador, da sua intuição, da capacidade para aprender um método ou uma técnica específica, de detectar erros e fazer perguntas (qualidades importantes na actividade de um crítico literário).
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Horing, Norman J. Morgenstern. Thermodynamic Green’s Functions and Spectral Structure. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198791942.003.0007.

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Multiparticle thermodynamic Green’s functions, defined in terms of grand canonical ensemble averages of time-ordered products of creation and annihilation operators, are interpreted as tracing the amplitude for time-developing correlated interacting particle motions taking place in the background of a thermal ensemble. Under equilibrium conditions, time-translational invariance permits the one-particle thermal Green’s function to be represented in terms of a single frequency, leading to a Lehmann spectral representation whose frequency poles describe the energy spectrum. This Green’s function has finite values for both t>t′ and t<t′ (unlike retarded Green’s functions), and the two parts G1> and G1< (respectively) obey a simple proportionality relation that facilitates the introduction of a spectral weight function: It is also interpreted in terms of a periodicity/antiperiodicity property of a modified Green’s function in imaginary time capable of a Fourier series representation with imaginary (Matsubara) frequencies. The analytic continuation from imaginary time to real time is discussed, as are related commutator/anticommutator functions, also retarded/advanced Green’s functions, and the spectral weight sum rule is derived. Statistical thermodynamic information is shown to be embedded in physical features of the one- and two-particle thermodynamic Green’s functions.
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Mpedi, Letlhokwa George, ed. Santa Claus: Law, Fourth Industrial Revolution, Decolonisation and Covid-19. African Sun Media, 2020. http://dx.doi.org/10.18820/9781928314837.

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The origins of Santa Claus, or so I am told, is that the young Bishop Nicholas secretly delivered three bags of gold as dowries for three young girls to their indebted father to save them from a life of prostitution. Armed with immortality, a factory of elves and a fleet of reindeer, his has been a lasting legacy, inextricably linked to Christmas. Of course, this Christmas looks a little different. Amidst a global pandemic, shimmying down the chimneys of strangers certainly does not adhere to social distancing guidelines. Some borders remain closed, and in some instances, the quarantine period is far too long. After all, he only has 24 hours to spread cheer across the world. As with the rest of us, Santa Claus is likely to get the remote working treatment. The reindeers this year are likely to be self-driving, reminiscent of an Amazon swarm of technology, and the naughty and nice lists are likely to be based on algorithms derived from social media accounts. In the age of the fourth industrial revolution, it is difficult to imagine that letters suffice anymore. How many posts were verified as real before shared? Enough to get you a drone. Fake news? Here is a lump of coal. Will we see elves in personal protective equipment (PPE) and will Santa Claus, high risk because of age and his likely comorbidities from the copious amount of cookies, have to self-isolate in the North Pole? In fact, will there be any toys at all this year? Surely production has been stalled with the restrictions on imports and exports into the North Pole. Perhaps, there is a view to outsourcing, or perhaps, there is a shift towards local production and supply chains. More importantly, as we have done in many instances in this period, maybe we should pause to reflect on the current structures in place. The sanctification of a figure so clearly dismissive of the Global South and to be critical, quite classist must be called into question. From some of the keenest minds, the contributions in this book make a strong case against this holly jolly man. We traverse important topics such as, is the constitution too lenient with a clear intruder who has conveniently branded himself a Good Samaritan? Allegations of child labour under the guise of elves, blatant animal cruelty, constant surveillance in stark contrast to many democratic ideals and his possible threat to national security come to the fore. Nevertheless, as the song goes, he is aware when you are asleep, and he knows when you are awake. Is feminism a farce to this beloved man – what role does Mrs Claus play and why are there inherent gender norms in his toys? Then is the worry of closed borders and just how accurate his COVID-19 tests are. Of course, this brings his ethics into question. While there is an agreement that transparency, justice and fairness, nonmaleficence, responsibility, and privacy are the core ethical principles, the meaning of these principles differs, particularly across countries and cultures. Why are we subject to Santa Claus’ notions of good and evil when he is so far removed from our context? As Richard Thaler and Cass Sunstein would tell you, this is fundamentally a nudge from Santa Claus for children to fit into his ideals. A nudge, coined by Thaler, is a choice that predictably changes people’s behaviour without forbidding any options or substantially changing their economic incentives. Even with pinched cheeks and an air of holiday cheer, Santa Claus has to come under scrutiny. In the process of decolonising knowledge and looking at various epistemologies, does Santa still make the cut?
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Sánchez-Maldonado, Jorge, and Nancy Espinel Riveros. Etnografías e historias de la periferia. 2020th ed. Editorial Corporación Universitaria del Meta -UNIMETA, 2020. http://dx.doi.org/10.52043/kvnx5032.

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En cada una de estas dos etnografías que componen este libro, se lee una suerte de conciencia crítica de lo que implica el pecado original de la Antropología (el colonialismo) y por ello se entiende quizá cierto distanciamiento de ella en los profesores. Las etnografías que presentan los profesores son dos historias que asocian las realidades de poblaciones indígenas de dos espacios territoriales de Colombia: Caribe y Llanos orientales. Esa conciencia crítica de lo que ha sido históricamente el sello de nacimiento de la Antropología, es precisamente lo que ha dado diversidad a la misma disciplina en sus aproximaciones y ha permitido que existan propuestas distintas a ese proyecto inicial colonial. Las Ciencias Sociales, de todos modos, se han de mover entre las tensiones políticas para generar conocimientos sobre la realidad y, como trabajamos con gente, siempre tendremos afortunadamente la exigencia de preguntarnos si lo que estamos haciendo es ética y políticamente acertado. En este sentido, este libro busca aportar a las reflexiones sobre la relación entre producción de conocimientos, poder, historia y construcción de una región que no excluya lo mejor de nuestra civilización, sin dejar de lado las tristes experiencias y lecciones que ha dejado a su paso también. Este trabajo de los profesores Jorge Sánchez-Maldonado y Nancy Espinel Riveros, pone en contacto a dos investigadores que existen juntos hoy, y que, con orígenes distintos y territorios distintos, piensan desde la institución las posibilidades de producir un conocimiento que va más allá de la Antropología, indeterminación disciplinaria que se deriva de que su existencia como profesores e investigadores, y que tiene que ver con merodear desde hace mucho en territorios disciplinares que no fueron los suyos, pero que con su pasión por conocer y aprender han contribuido a la formación. Jorge, en la Escuela de Derecho y Ciencias Sociales, y Nancy, en la Escuela de Arquitectura, esperan seguir tendiendo puentes para producir un conocimiento adecuado a los tiempos que corren.
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Book chapters on the topic "Derive pole"

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Yang, Yan, and Jiayin Yuan. "Poly(ionic liquid)-Derived Functional-Shaped Carbon Nanomaterials." In ACS Symposium Series, 17–34. Washington, DC: American Chemical Society, 2014. http://dx.doi.org/10.1021/bk-2014-1173.ch002.

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Gambaryan-Roisman, T., M. Scheffler, T. Takahashi, P. Buhler, and P. Greil. "Formation and Properties of Poly(siloxane) Derived Ceramic Foams." In Ceramics - Processing, Reliability, Tribology and Wear, 247–51. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607293.ch42.

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Bernard, Samuel, Sylvain Duperrier, Fernand Chassagneux, David Cornu, and Philippe Miele. "Poly[(Alkylamino)Borazine]-Derived Boron Nitride Fibers for Composite Applications." In Ceramic Transactions Series, 1–10. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118407844.ch1.

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Knauss, D. M., J. E. McGrath, and Takashi Kashiwagi. "Copolycarbonates and Poly(arylates) Derived from Hydrolytically Stable Phosphine Oxide Comonomers." In ACS Symposium Series, 41–55. Washington, DC: American Chemical Society, 1995. http://dx.doi.org/10.1021/bk-1995-0599.ch003.

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Issam, Ahmed Mohammed, and A. K. Nurul Khizrien. "New Liquid Crystalline Poly(azomethine esters) Derived from PET Waste Bottles." In Liquid Crystalline Polymers, 297–313. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-20270-9_12.

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Mohanty, D. K., and J. E. McGrath. "Synthesis and Characterization of Poly(Arylene Ether Sulfones) and Poly(Arylene Ether Ketones) Derived from Tetramethyl Bisphenol A." In Advances in Polymer Synthesis, 113–31. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2121-7_5.

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Issam, Ahmed Mohammed, and A. K. Nurul Khizrien. "ERRATUM: New Liquid Crystalline Poly(azomethine esters) Derived from PET Waste Bottles." In Liquid Crystalline Polymers, E1. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-20270-9_22.

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Hasegawa, George. "Pore Formation in Poly(divinylbenzene) Networks Derived from Organotellurium-Mediated Living Radical Polymerization." In Springer Theses, 13–32. Tokyo: Springer Japan, 2012. http://dx.doi.org/10.1007/978-4-431-54198-1_2.

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Lostocco, Michael R., and Samuel J. Huang. "The Synthesis and Characterization of Polyesters Derived from L-Lactide and Variably-Sized Poly(Caprolactone)." In Polymer Modification, 45–57. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4899-1477-4_5.

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Hasegawa, George. "Fabrication of Activated Carbon Monoliths with Well-Defined Macropores Derived from Sulfonated Poly(divinylbenzene) Networks." In Springer Theses, 61–78. Tokyo: Springer Japan, 2012. http://dx.doi.org/10.1007/978-4-431-54198-1_5.

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Conference papers on the topic "Derive pole"

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DeRong, Wu. "The Design of Manipulator System With Pole Placement Approach." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0442.

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Abstract The manipulator system is a sequence of mechanisms jointed with each other. It is difficult to establish the dynamic state equation of such a mechanism system. By means of the bond graph method, it is easy to derive the state equation of a mechanism, then one have the transfer function matrix. According to the combined situation of mechanisms for manipulator, whose transfer function matrix may be obtained. Based on the modern control theory, one will find that in a controllable system, it is possible to place the poles anywhere we wish in the complex plane. In this paper one will develop a new procedure concerning system pole assignment within desired places by using two controllers. An example is illustrated.
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Williams, Robert L., and Noah Needler. "New Simplified Three-Spheres Intersection Algorithm for the Forward Pose Kinematics of Cable-Suspended Robots." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35185.

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A novel simplified analytical three-spheres intersection algorithm is presented for use with forward pose kinematics solutions of a four-cable-suspended robot (the method is applicable to various other cable-suspended robots with equal pole heights and three cables intersecting in one point). It is required that the vertical center heights of all three spheres are equal (otherwise one can use the existing more-complicated algorithm). We derive this new algorithm and show that the multiple solutions, algorithmic singularity, and imaginary solutions do not cause any trouble in practical implementation. The algorithmic singularity of the original three-spheres intersection algorithm regarding equal Z heights is eliminated with the new algorithm. The new algorithm requires significantly less computation compared with the original algorithm. Examples are presented to demonstrate the new three-spheres intersection algorithm for a 4-cable robot.
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Cauley, Thomas H., Jose D. Rosario-Rosario, and Albert P. Pisano. "Feasibility Study of a MEMS Viscous Rotary Engine Power System (VREPS)." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59916.

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In this paper is presented an analytic, theoretical and numerical study of the Viscous Rotary Engine Power System (VREPS). In addition, a proposed process flow for the fabrication of the VREPS using DRIE of silicon is described. The design premise of the VREPS is to derive mechanical power from the surface viscous shearing forces developed by a pressure driven flow present between a rotating disk or annulus and a stationary housing. The resulting motion of the rotating disk or annulus is converted into electrical power by using an external permanent magnet, embedded nickel-iron magnetic circuits, and an external switched magnetic pole electric generator similar to the design proposed by M. Senesky for the UC Berkeley micro-Wankel Engine [1]. This paper will examine the power output, isentropic efficiency, and operating characteristics of the disk and annular viscous turbines using the lubrication approximation and the Creeping Flow Equations (Stokes Flow). The viscous turbine is optimized for maximum isentropic efficiency using MATLAB numerical optimization routines. Finally, a unique triple-wafer micro-fabrication process for VREPS is presented. The proposed design consists of a 250 μm thick, 3.4 mm OD / 2.4 mm ID annular rotor with embedded magnetic poles and four 10 μm driving channels on each side of the rotor. Electrical power is generated with a switched magnetic pole generator, external permanent magnet, and integrated magnetic circuits. Calculations with water predict an output power of 825 mW at an isentropic efficiency of 25% using a pressure drop of 5 MPa cross the device.
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Brady, Michael H., and Steven W. Peterson. "The Pole Curve Generated by Infinite Poles." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0271.

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Abstract In this paper, a general expression for the pole curve equation was derived in the projective plane is applied to opposite-pole quadrilaterals that contain one or more infinite poles. Such infinite poles arise in four-position synthesis when a lamina moves from one position to another in pure translation. Classical derivations of the pole curve equation are not valid when a pole is infinite because these derivations depend upon distances between poles. However, this projective approach relies only upon the homogeneous coordinates of the poles. As infinite poles have finite coordinates in the projective plane, this derivation readily accommodates infinite poles.
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Chamoun, George C., Eva Kanso, and Paul K. Newton. "Single Vortex Streets on the Sphere." In ASME 2008 Dynamic Systems and Control Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/dscc2008-2401.

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We study arrangements of point vortices on a sphere in the form of a single von Ka´rma´n vortex street, with and without the addition of pole vortices using the configuration matrix approach recently introduced by (1) and (2) on the sphere. We derive the general form of the von Ka´rma´n matrix thereby obtaining all possible vortex strengths for which the configuration rotates rigidly, perpendicular to the axis of rotation of the sphere. The distribution of normalized singular values of the von Ka´rma´n matrices allows us to calculate their Shannon entropy (as a function of the vortex street parameters), which we interpret as a scalar measure of ‘disorder’ and robustness of the vortex street. We also study the streamline topologies associated with the vortex street and identify a number of distinct topologies which support a jet-stream passing through the street capable of transporting particles globally.
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Lee, Kok-Meng, Hungsun Son, and Jong-Kweon Park. "Design Analysis of a Spherical Magnetic Bearing for Multi-DOF Rotational Stage Applications." In ASME 2007 International Manufacturing Science and Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/msec2007-31189.

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This paper presents an analytical method to facilitate design of a spherical magnetic bearing (SMB) for a multi-DOF rotational stage. Both passive and active regulations of the SMB are considered. We formulate the SMB dynamic model along with the method of computing the magnetic force and torque required to null any deviation of the rotor, which requires solving the magnetic field. For this, we introduce and validate a general method, referred to here as distributed-multi-pole (DMP) modeling method which requires only a limited set of known (numerical or experimental) field solutions, to derive closed-form solutions for precise calculation of the magnetic field around a permanent magnet (PM). The DMP method has been validated by comparing its modeled potential field and flux density against analytical solutions, as well as the computed force (using DMP modeled field) against published experimental data; both show excellent agreement. Finally, we demonstrate the concept feasibility of the spherical magnetic bearing, and analyze its dynamics and control performance using the DMP modeled field and computed force/torque.
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Park, Jeong-Il, Douglas E. Adams, Yoshinobu Ichikawa, and Jacob Bayyouk. "Investigation of the Mass Flow Sources in a Multi-Cylinder Compressor Using Frequency Response of Pressure Pulsations in the Suction Manifold." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55495.

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Linear acoustic plane wave theory and a four pole parameter formulation are used to derive and solve the governing inhomogeneous equation for the forced pressure response in the simplified manifold model. The equations for estimating gas pressure pulsations in the annular cavity connected to an anechoic inlet pipe are presented. Complicated interactions between multiple cylinder valve ports in the suction manifold produce unexpected changes in the frequency response conditions for changes in the operating speed, and hence, the flow rate characteristics through the valves. From the addition of the delayed time for opening valve in the mass flow rate profiles and the comparison of the gas pulsations from experiment with those from simulation, the maximum strokes of the piston and the delayed times for opening valve can be estimated without solving the valve dynamic and thermodynamic equations. By applying the mass flow rate sinks at each valve as identified, the correlation between analytical and experimental results is shown to be much better than if the idealized, kinematically obtained source functions are used instead.
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Elliott, Stephen J., Guangjian Ni, and Luyang Sun. "Pole-zero descriptions of active cochlear micromechanics derived from in vivo measurements." In TO THE EAR AND BACK AGAIN - ADVANCES IN AUDITORY BIOPHYSICS: Proceedings of the 13th Mechanics of Hearing Workshop. Author(s), 2018. http://dx.doi.org/10.1063/1.5038454.

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Chinnasami, H., and R. Devireddy. "Osteo-Induction of Human Adipose Derived Stem Cells Cultured on Poly (L-Lactic Acid) Scaffolds Prepared by Thermally Induced Phase Separation Method." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51906.

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Bio-degradable Poly (l-lactic acid) (PLLA) scaffolds synthesized using thermally induced phase separation (TIPS) method was used to load cryo-preserved human adipose derived stem cells (hASCs). To make the scaffolds, PLLA-Dioxane solutions were formed by dissolving PLLA in 1,4-Dioxane with three different compositions (wt/vol). These PLLA-Dioxane solutions, frozen in three different cooling rates were lyophilized at 0.037bar and −70°C for 48hrs resulting in porous PLLA scaffolds. Based on the porosity, pore size and compressive strength, a suitable scaffold was chosen to investigate its bio-compatibility and osteo-inductive potential.
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Xin, Wang, Yonghui Song, Jianfeng Peng, Ruixia Liu, and Lu Han. "Characterization and adsorption properties of low-cost sewage sludge-derived carbon by using poly-aluminium chloride as pore-forming agent." In 2016 5th International Conference on Sustainable Energy and Environment Engineering (ICSEEE 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icseee-16.2016.120.

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Reports on the topic "Derive pole"

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Ng, S. H., D. P. C. Fung, S. D. Kim, and A. Kozak. Study of pore structure and reactivity of Canadian coal-derived chars. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/304333.

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