Academic literature on the topic '$f(R)$ Model'

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Journal articles on the topic "$f(R)$ Model"

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Huang, Qing-Guo. "A polynomial f(R) inflation model." Journal of Cosmology and Astroparticle Physics 2014, no. 02 (2014): 035. http://dx.doi.org/10.1088/1475-7516/2014/02/035.

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Lopes, Rafael C. C., Rodrigo Voivodic, L. Raul Abramo, and Laerte Sodré Jr. "Turnaround radius in f(R) model." Journal of Cosmology and Astroparticle Physics 2018, no. 09 (2018): 010. http://dx.doi.org/10.1088/1475-7516/2018/09/010.

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Oikonomou, V. K. "An exponential F(R) dark energy model." General Relativity and Gravitation 45, no. 12 (2013): 2467–81. http://dx.doi.org/10.1007/s10714-013-1597-7.

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Sebastiani, Lorenzo, and Ratbay Myrzakulov. "F(R)-gravity and inflation." International Journal of Geometric Methods in Modern Physics 12, no. 09 (2015): 1530003. http://dx.doi.org/10.1142/s0219887815300032.

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In this short review, we revisit inflation in F(R)-gravity. We find several F(R)-models for viable inflation by applying some reconstruction techniques. A special attention is payed in the reproduction of the last Planck satellite data. The possible generalizations of Starobinsky-like inflation are found and discussed. The early-time acceleration is analyzed in a higher derivative quantum gravitational model which mainly reduces to F(R)-gravity.
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Houndjo, M. J. S., M. E. Rodrigues, N. S. Mazhari, D. Momeni, and R. Myrzakulov. "Higher-derivative f(R,□R,T) theories of gravity." International Journal of Modern Physics D 26, no. 03 (2017): 1750024. http://dx.doi.org/10.1142/s0218271817500249.

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In literature, there is a model of modified gravity in which the matter Lagrangian is coupled to the geometry via trace of the stress–energy–momentum tensor [Formula: see text]. This type of modified gravity is denoted [Formula: see text] in which [Formula: see text] is Ricci scalar [Formula: see text]. We extend manifestly this model to include the higher derivative term [Formula: see text]. We derived equations of motion (EOM) for the model by starting from the basic variational principle. Later we investigate FLRW cosmology for our model. We show that de Sitter (dS) solution is unstable for
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Boko, R. D., M. J. S. Houndjo, and J. Tossa. "Stability and phase space analysis in f(R) theory with generalized exponential f(R) model." International Journal of Modern Physics D 25, no. 10 (2016): 1650098. http://dx.doi.org/10.1142/s021827181650098x.

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We have studied in this paper, the stability of dynamical system in [Formula: see text] gravity. We have considered the [Formula: see text] [Formula: see text]-gravity and explored its dynamical analysis. We found six critical points among which only one describes a universe filled of both matter and dominated dark energy. It is shown that these critical points present specific phase spaces described by the corresponding fluids. Furthermore, we have investigated the stability conditions of these critical points and find that these conditions are dependent of the model parameters. We also study
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Valtancoli, P. "Exactly solvable f(R) inflation." International Journal of Modern Physics D 28, no. 07 (2019): 1950087. http://dx.doi.org/10.1142/s0218271819500871.

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CHAKRAVARTY, GIRISH KUMAR, SUBHENDRA MOHANTY та NAVEEN K. SINGH. "HIGGS INFLATION IN f(Φ, R) THEORY". International Journal of Modern Physics D 23, № 04 (2014): 1450029. http://dx.doi.org/10.1142/s0218271814500291.

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We generalize the scalar-curvature coupling model ξΦ2R of Higgs inflation to ξΦaRb to study inflation. We compute the amplitude and spectral index of curvature perturbations generated during inflation and fix the parameters of the model by comparing these with the Planck + WP data. We find that if the scalar self-coupling λ is in the range 10-5–0.1, parameter a in the range 2.3–3.6 and b in the range 0.77–0.22 at the Planck scale, one can have a viable inflation model even for ξ ≃ 1. The tensor to scalar ratio r in this model is small and our model with scalar-curvature couplings is not ruled
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Jamil, Mubasher, F. M. Mahomed, and D. Momeni. "Noether symmetry approach in f(R)–tachyon model." Physics Letters B 702, no. 5 (2011): 315–19. http://dx.doi.org/10.1016/j.physletb.2011.07.028.

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Vakili, B. "Noether symmetric minisuperspace model of f(R) cosmology." Annalen der Physik 19, no. 3-5 (2010): 359–63. http://dx.doi.org/10.1002/andp.201010447.

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Dissertations / Theses on the topic "$f(R)$ Model"

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Lopes, Rafael Christ de Castro. "Estudo do raio de turnaround em teorias f(R)." Universidade de São Paulo, 2019. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-21032019-154839/.

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Nós investigamos o raio de turnaround, a distância do centro da estrutura cósmica até a casca que está se descolando do fluxo de Hubble em um dado tempo, no contexto do modelo de colapso esférico, tanto em Relatividade Geral e em Gravidade Modificada, em particular no cenário f(R) chamado de modelo de Hu-Sawicki. O próximo passo foi investigar a relação entre este raio e a massa de virial de estruturas cósmicas no contexto do modelo LCDM e no modelo f(R) de gravidade modificada.<br>We investigate the turnaround radius, the distance from the center of the cosmic structure to the shell that is
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Dev, Abha, Deepak Jain, S. Jhingan, S. Nojiri, M. Sami, and I. Thongkool. "Delicate f(R) gravity models with a disappearing cosmological constant and observational constraints on the model parameters." American Physical Society, 2008. http://hdl.handle.net/2237/11278.

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Adaramola, Rhoda Fiyinfoluwa. "Relationship between Aspalathus linearis (Burm. F.) R. Dahlgren (rooibos) growth and soil moisture in a glasshouse and in the DSSAT-CSM crop model." Master's thesis, Faculty of Science, 2021. http://hdl.handle.net/11427/33623.

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Climate change and drought pose a major threat to agriculture and water resources globally and for rooibos (Aspalathus linearis (Burm. F.) R. Dahlgren) production in the Western Cape province of South Africa. Rooibos is adapted to the coarse, nutrient poor, acidic, well-drained, deep sandy soil of the Fynbos biome. The region has a Mediterranean climate, which is characterised by wet cold winters, with an average annual rainfall of about 375 mm, and dry summers. The growth of rooibos peaks in the summer months, implying a reliance on soil moisture. The current study aims to investigate the rel
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Laird, Daniel T. "Analysis of Covariance with Linear Regression Error Model on Antenna Control Unit Tracking." International Foundation for Telemetering, 2015. http://hdl.handle.net/10150/596393.

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ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV<br>Over the past several years DoD imposed constraints on test deliverables, requiring objective measures of test results, i.e., statistically defensible test and evaluation (SDT&E) methods and results. These constraints force the tester to employ statistical hypotheses, analyses and perhaps modeling to assess test results objectively, i.e., based on statistical metrics, probability of confidence and
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Kandhai, Sulona. "Investigating the parameter space of viable models for f(R) gravity." Doctoral thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/31181.

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The accelerated expansion of spacetime intuitively points to the existence of new, unknown energy fields pervading the universe, but it is has also spurred the growth of the research field of modified gravity theories. Of these, f(R) theories of gravity is the first and simplest modification to General Relativity, and have been studied extensively for their astrophysical and cosmological predictions. Power law f(R) modifications have been shown to exhibit desirable characteristics, producing the late time accelerated expansion as well as satisfying local tests of gravity. However, there is wid
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Yang, Lu [Verfasser], and F. R. [Akademischer Betreuer] Klinkhamer. "Exploration of fermion zero modes and spherically symmetric gauge fields / Lu Yang. Betreuer: F. R. Klinkhamer." Karlsruhe : KIT-Bibliothek, 2015. http://d-nb.info/107525390X/34.

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De, Neeve Eileen O'Brien. "Bernard Lonergan's "Circulation analysis" and macrodynamics." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74336.

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Bernard Lonergan's economic writings have not been fully evaluated by economists although two recent papers by Burley (1989a, 1989b) show that work has begun. The purpose of this dissertation, therefore, is to situate Lonergan's (1944) economics essay, Circulation Analysis, in the history of economic thought of the period as well as to present a Lonerganian cycle model.<br>Circulation Analysis examines fundamental macrodynamic processes to explain fluctuations. It was written in the early 1940s following a period of controversy and debate that led to the current paradigms of economic dynamics.
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Costa, Fernando Jos? de Medeiros. "Do modelo geom?trico ao modelo f?sico: o tridimensional na educa??o do arquiteto e urbanista." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12312.

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Made available in DSpace on 2014-12-17T13:56:53Z (GMT). No. of bitstreams: 1 FernandoJMC_TESE.pdf: 4090837 bytes, checksum: c86bb775317f1faa46b14511be554257 (MD5) Previous issue date: 2013-03-02<br>In the teaching practice of architecture and urbanism in Brazil, educational legislation views modeling laboratories and workshops as an indispensable component of the infrastructure required for the good functioning of any architectural course of study. Although the development of information technology at the international level has created new possibilities for digital production of architectur
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André, Raíla. "Análise da instabilidade de Jeans em sistemas auto-gravitantes e um modelo de estrutura estelar no contexto da teoria de gravidade f (R)." reponame:Repositório Institucional da UFPR, 2017. http://hdl.handle.net/1884/46322.

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Orientador: Prof. Dr. Gilberto M. Kremer<br>Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Exatas, Curso de Pós-Graduação em Física. Defesa: Curitiba, 23/02/2017<br>Inclui referências : f. 117-123<br>Resumo: Nesta tese, analisamos, primeiramente, a dinâmica de sistemas auto-gravitantes sem colisão descritos pela gravidade f (R) e equação de Boltzmann na aproximação de campo fraco, focando na instabilidade de Jeans para esses sistemas. As equações de campo nessa aproximação foram obtidas no formalismo de Palatini. Através da solução das equações acopladas obtivemos o crité
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QASSOUD, DRISS. "Simulations de la reponse du detecteur a zero degre du projet d'experience 4 au g. S. I. -darmstadt (r. F. A. ). Etude du modele de fai et randrup et contribution a la resolution du detecteur." Clermont-Ferrand 2, 1990. http://www.theses.fr/1990CLF21245.

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L'etude developpee dans cette these est consacree aux simulations de la reponse du detecteur a zero degre ou mur interne (construit par le laboratoire de clermont-ferrand) qui est un element du detecteur 4 implante au g. S. I. -darmstadt (r. F. A. ); d'autre part, nous etudions le flot de matiere caracterisant l'ecoulement collectif de la matiere nucleaire dans le plan de reaction. Ces simulations sont basees sur le modele statistique de g. Fai et j. Randrup mis en uvre sous forme d'un code informatique freesco generant les particules emises lors de lma collision. Des resultats tires de ce cod
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Books on the topic "$f(R)$ Model"

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Acceptable service (what it really is): Illustrated and enforced from Holy Writ by Sarah R. Geldard, 1875 ; Honble. F. Dillon, 1880 ; Rev. Geo. Wright, 1809 : a model and a beacon for Christian workers. [s.n.], 1985.

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LAND.TECHNIK AgEng 2019. VDI Verlag, 2019. http://dx.doi.org/10.51202/9783181023617.

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Dieser VDI-Bericht ist ausschließlich als PDF-Dokument erschienen! Content half of it… Analysis of Drive Trains Model-Based Chiptuning Detection of Diesel Engines 1 M. Hinrichs, P. Pickel, John Deere GmbH, Kaiserslautern R. Isermann, Institute of Automatic Control, Darmstadt An Analysis of the Energy Consumption in the High-Pressure System of an Agricultural Tractor through Modeling and Experiment 9 X. Tian, A. Vacca, Purdue University, West Lafayette, IN, USA; S. Fiorati, F. Pintore, CNH Industrial S.p.A, Modena, Italy Multi-Domain Simulation for the Assessment of the NVH Behaviour of a Tract
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Van Der Auwera, Johan, and Alfonso Zamorano Aguilar. The History of Modality and Mood. Edited by Jan Nuyts and Johan Van Der Auwera. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780199591435.013.4.

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This chapter traces the current understanding of mood (or mode) and modality back in time, in the Western tradition, giving pride of place to F. R. Palmer, G. H. von Wright, I. Kant, Priscian, Quintilian, Dionysius Thrax, Apollonius Dyscolus, and Protagoras. It sketches how there were and still are at least four different notions of mood, the domain of which was progressively taken over by a notion of modality. It also sketches the tradi¬tion of some key elements in the understanding of modality, viz. necessity and possibil¬ity, which were studied from Greek antiquity onward long before they w
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Kelly, Phil. Defending Classical Geopolitics. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228637.013.279.

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Three successive parts are presented within this article, all intended to raise the visibility and show the utility of classical geopolitics as a deserving and separate international-relations model: (a) a common traditional definition, (b) relevant theories that correspond to that definition, and (c) applications of certain theories that will delve at some depth into three case studies (the Ukrainian shatterbelt, contemporary Turkish geopolitics, and a North American heartland).The placement of states, regions, and resources, as affecting international relations and foreign policies, defines
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Fahrzeugsicherheit. VDI Verlag, 2019. http://dx.doi.org/10.51202/9783181023648.

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Dieser VDI-Bericht ist ausschließlich als PDF-Dokument erschienen! Inhalt Vorwort 1 R. Schöneburg, Mercedes-Benz AG S. Müller, Technische Universität Berlin Auswirkung automatisierten Fahrens auf die Fahrzeugsicherheit Sicherheit zukünftiger hochautomatischer Fahrzeuge im Mischverkehr – Anforderungen, Lösungskonzepte und Potenzialabschätzungen 3 H. Freienstein, J. Kolatschek, G. A. D‘Addetta, Bosch Research, Vehicle Safety and Automated Driving, Robert Bosch GmbH Erkennung der kognitiven Belastung eines Fahrers anhand von Vitalparametern aus realen Fahrzeugsensoren 21 F. Ripper, K. Mahdi, Joys
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Book chapters on the topic "$f(R)$ Model"

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Zhao, Hui, Yanbo Huang, and Jing Zhang. "The F-R Model of Teaching in Chinese Universities." In Technologies for E-Learning and Digital Entertainment. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-69736-7_33.

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Ribas, B., F. J. de Pascual, J. del Rio, and M. I. Sânchez-Reus. "REGRESSION MODEL FOR THE THYMIC GLAND MORPHOLOGY BY CADMIUM AND ZINKIN INDUCTION BY ZINC." In Proceedings of the 4. International Workshop, Neuherberg, F. R. G., April 1986, edited by Peter Brätter. De Gruyter, 1987. http://dx.doi.org/10.1515/9783111692449-028.

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Bouhmadi-López, Mariam, João Morais, and Alfredo B. Henriques. "The Spectrum of Gravitational Waves in an f(R) Model with a Bounce." In Progress in Mathematical Relativity, Gravitation and Cosmology. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40157-2_16.

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Mills, Colin F. "MODELS FOR TRACE ELEMENT METABOLISM IN HUMANS." In Proceedings of the 4. International Workshop, Neuherberg, F. R. G., April 1986, edited by Peter Brätter. De Gruyter, 1987. http://dx.doi.org/10.1515/9783111692449-003.

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Kirchgeßner, M., A. M. Reichlmayr-Lais, and E. Weigand. "TRACE ELEMENT REQUIREMENT MODELS BASED ON PHYSIOLOGICAL AND METABOLIC PROCESSES." In Proceedings of the 4. International Workshop, Neuherberg, F. R. G., April 1986, edited by Peter Brätter. De Gruyter, 1987. http://dx.doi.org/10.1515/9783111692449-002.

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Hector, Andy. "Analysis of Variance." In The New Statistics with R. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198798170.003.0011.

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Analysis of variance is introduced using a worked analysis of some data collected by Charles Darwin on inbreeding depression in experimental maize plants. ANOVA is used to compare the heights of a group of cross-pollinated plants with a group of self-fertilized seedlings. The least squares process is explained, including the calculation of sums of squares and variances and the calculation of F-ratios. The organization of the results of a linear model into an ANOVA table is explained. The R code necessary to perform the analysis is worked through and explained in terms of the underlying statistical concepts, and the interpretation of the R output is demonstrated.
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Coppens, Philip. "Fourier Methods and Maximum Entropy Enhancement." In X-Ray Charge Densities and Chemical Bonding. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195098235.003.0007.

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Image formation in diffraction is no different from image formation in other branches of optics, and it obeys the same mathematical equations. However, the nonexistence of lenses for X-ray beams makes it necessary to use computational methods to achieve the Fourier transform of the diffraction pattern into the image. The phase information required for this process is, in general, not available from the diffraction experiment, even though progress has been made in deriving phases from multiple-beam effects. This is the phase problem, the paramount issue in crystal structure analysis, which also affects charge density analysis of noncentrosymmetric structures. For centrosymmetric space groups, the independent-atom model is a sufficiently close approximation to allow calculation of the signs for all but a few very weak reflections. Images of the charge density are indispensable for qualitative understanding of chemical bonding, and play a central role in charge density analysis. In this chapter, we will discuss methods for imaging the experimental charge density, and define the functions used in the imaging procedure. According to Eq. (1.22), the structure factor F(H) is the Fourier transform of the electron density ρ(r) in the crystallographic unit cell. The electron density p(r) is then obtained by the inverse Fourier transformation, or . . . ρ(r)=∫F(H) exp (−2πi H ·r) dH (5.1) . . . in which F(H) are the (complex) structure factors corrected for the anomalous scattering discussed in chapter 1.
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"The Transtheoretical Model of Change in Clinical Supervision: John R. Culbreth and Charles F. Gressard." In State of the Art in Clinical Supervision. Routledge, 2009. http://dx.doi.org/10.4324/9780203893449-14.

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"nnI2/r( F." In Probability and Statistical Models with Applications. Chapman and Hall/CRC, 2000. http://dx.doi.org/10.1201/9781420036084-61.

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Giacovazzo, Carmelo. "Phase improvement and extension." In Phasing in Crystallography. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199686995.003.0013.

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The descriptions of the various types of Fourier synthesis (observed, difference, hybrid) and of their properties, given in Chapter 7, suggest that electron density maps are not only a tool for depicting the distribution of the electrons in the target structure, but also a source of information which may be continuously exploited during the phasing process, no matter whether ab initio or non-ab initio methods were used for deriving the initial model. Here, we will describe two important techniques based on the properties of electron density maps. (i) The recursive approach for phase extension and refinement called EDM (electron density modification). Such techniques have dramatically improved the efficiency of phasing procedures, which usually end with a limited percentage of phased reflections and non-negligible phase errors. EDM techniques allow us to extend phase assignment and to improve phase quality. The author is firmly convinced that practical solution of the phase problem for structures with Nasym up to 200 atoms in the asymmetric unit may be jointly ascribed to direct methods and to EDM techniques. (ii) The AMB (automated model building) procedures; these may be considered to be partly EDM techniques and they are used for automatic building of molecular models from electron density maps. Essentially, we will refer to proteins; the procedures used for small to medium-sized molecules have already been described in Section 6.3.5. Two new ab initio phasing approaches, charge flipping and VLD, essentially based on the properties of the Fourier transform, belong to the EDM category, and since they require a special treatment, they will be described later in Chapter 9. Phase extension and refinement may be performed in reciprocal and in direct space. We described the former in Section 6.3.6; here, we are just interested in direct space procedures, the so-called EDM (electron density modification) techniques. Such procedures are based on the following hypothesis: a poor electron density map, ρ, may be modified by a suitable function, f , to obtain a new map, say ρmod, which better approximates the true map: . . . ρmod (r) = f [ρ(r)]. (8.1) . . . If function f is chosen properly, more accurate phases can be obtained by Fourier inversion of ρmod, which may in turn be used to calculate a new electron density map.
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Conference papers on the topic "$f(R)$ Model"

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Taşer, Doğukan, and Melis Ulu Doğru. "Conformal flat model in f(R, T) gravity." In TURKISH PHYSICAL SOCIETY 35TH INTERNATIONAL PHYSICS CONGRESS (TPS35). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5135449.

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Gueham, A., N. Mebarki, and H. Bouhalouf. "A model of F(R) theories in extra dimensions." In THE 8TH INTERNATIONAL CONFERENCE ON PROGRESS IN THEORETICAL PHYSICS (ICPTP 2011). AIP, 2012. http://dx.doi.org/10.1063/1.4715460.

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Mishra, Soma, Rishi Tiwari, Aroonkumar Beesham, and Vipin Dubey. "Bianchi Type I cosmological model in f(R,T) gravity." In 1st Electronic Conference on Universe. MDPI, 2021. http://dx.doi.org/10.3390/ecu2021-09290.

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Güdekli, E., and A. Çalışkan. "Perfect fluid LRS Bianchi type -I- universe model in F(R, T)." In SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems. Author(s), 2018. http://dx.doi.org/10.1063/1.5078924.

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Çağlar, Halife. "Quadratic equation of state solutions for Bianchi type-V universe model in f(R, T) gravity." In TURKISH PHYSICAL SOCIETY 35TH INTERNATIONAL PHYSICS CONGRESS (TPS35). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5135416.

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Capozziello, S., P. Martin-Moruno, C. Rubano, Kerstin E. Kunze, Marc Mars, and Miguel Angel Vázquez-Mozo. "Exact f(R)-cosmological model coming from the request of the existence of a Noether symmetry." In PHYSICS AND MATHEMATICS OF GRAVITATION: Proceedings of the Spanish Relativity Meeting 2008. AIP, 2009. http://dx.doi.org/10.1063/1.3141262.

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Doutremepuich, C., O. de Sèze, T. Castrioto, F. Peirera, F. Doutremepuich, and F. Toulemonde. "TREATMENT OF EXPERIMENTAL VENOUS STASIS MODEL IN RATS BY HEPARIN AND A VERY LOW MOLECULAR WEIGHT HEPARIN FRAGMENT. RELATIONSHIP TO PLASMATIC HEPARIN ACTIVITY." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644850.

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In this work we investigated the possible relationship between plasmatic activity and antithrombotic activity of a Low Molecular Weight Heparin Fragment (CY222, Choay-Paris) compared with Heparin (Hep). A randomized administration of both test drugs was carried out on 198 rats receiving 4 different dosages (4,2,1 or 0.5 mg/Kg b.w.) or a placebo solution (normal saline). A ligature of the inferior vena cava was performed on rats at T = OH and test drugs were administered subcutaneously at T - 2H. Blood and thrombus samples were taken at T = 6H. For all the tests the Heparin level was computed f
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Razi, Y. P., M. Mojtabi, K. Maliwan, M. C. Charrier-Mojtabi, and A. Mojtabi. "A Dynamical Model for Studying the Stability of Thermo-Solutal Convection Under the Effect of Vertical Vibration." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-85062.

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This paper concerns the thermal stability analysis of porous layer saturated by a binary fluid under the influence of mechanical vibration. The linear stability analysis of this thermal system leads us to study the following damped coupled Mathieu equations: BH¨+B(π2+k2)+1H˙+(π2+k2)−k2k2+π2RaT(1+Rsinω*t*)H=k2k2+π2(NRaT)(1+Rsinω*t*)Fε*BF¨+Bπ2+k2Le+ε*F˙+π2+k2Le−k2k2+π2NRaT(1+Rsinω*t*)F=k2k2+π2RaT(1+Rsinω*t*)H where RaT is thermal Rayleigh number, R is acceleration ratio (bω2/g), Le is the Lewis number, k is the dimensionless wave-number, ε* is normalized porosity and N is the buoyancy ratio (H a
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Sandhu, Jatinder Pal Singh. "Local-Correlation Based Zero-Equation Transition Model for Turbomachinery." In ASME 2019 Gas Turbine India Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gtindia2019-2615.

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Abstract In this paper, we present a new local-correlation based zero-equation transition model. The new model, which is derived from the local-correlation based one-equation gamma transition model (Menter, F. R., Smirnov, P. E., Liu, T., and Avancha, R., A One-Equation Local Correlation-Based Transition Model, Flow, Turbulence and Combustion, vol. 95, 2015, pp. 583619.), does not require any additional equation to be solved, by defining a new variable, which captures the turbulent kinetic energy and intermittency collectively. The new model only adds three more source terms to the existing tr
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Leylegian, J. C., M. H. Naraghi, S. Montoni, M. Kaszczak, and V. Garafolo. "Design of Experiment to Evaluate Thermal Resistance of a PTAC Unit." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65030.

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As a part of the “Design of Experiment” component of Thermal/Fluids Laboratory (MECH405) at Manhattan College, a setup for measuring the R-value of an Evergreen Products Model KHS-09 PTAC unit was designed by a student group. The setup consisted of the PTAC unit installed in a well insulated wall. A thermally controlled hot chamber (which simulated a hot outdoor environment) was built around the exterior side of the wall and PTAC assembly. The interior side was exposed to the lab air temperature (typically at 70°F). Thermocouples were installed on various surfaces of the setup and temperature
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