Relevant bibliographies by topics / Pair Formation

Contents

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

Academic literature on the topic 'Pair Formation'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "Pair Formation"

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Hadeler, K. P. "Pair formation." Journal of Mathematical Biology 64, no. 4 (July 8, 2011): 613–45. http://dx.doi.org/10.1007/s00285-011-0454-0.

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Takeuchi, Shin. "Dislocation processes in quasicrystals—Kink-pair formation control or jog-pair formation control." Materials Science and Engineering: A 400-401 (July 2005): 306–10. http://dx.doi.org/10.1016/j.msea.2005.03.068.

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COX, CATHLEEN R., VALENTINA I. GOLDSMITH, and HEIDI R. ENGELHARDT. "Pair Formation in California Condors." American Zoologist 33, no. 2 (April 1993): 126–38. http://dx.doi.org/10.1093/icb/33.2.126.

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Berkowitz, J., C. A. Mayhew, and B. Ruščić. "Photoion-pair formation in Cl2." Chemical Physics 123, no. 2 (July 1988): 317–28. http://dx.doi.org/10.1016/0301-0104(88)87278-1.

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HALE, W. G., and R. P. ASHCROFT. "PAIR FORMATION AND PAIR MAINTENANCE IN THE REDSHANK TRINGA TOTANUS." Ibis 124, no. 4 (April 3, 2008): 471–90. http://dx.doi.org/10.1111/j.1474-919x.1982.tb03792.x.

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Prasad, Shraddha, Manoj Kumar Dutta, and Ram Krishna Sarkar. "Breather pair formation in holographic medium." Optik 245 (November 2021): 167742. http://dx.doi.org/10.1016/j.ijleo.2021.167742.

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VERHULST, TOBIAS, and JAN NAUDTS. "A MECHANISM FOR ELECTRON PAIR FORMATION." Modern Physics Letters B 25, no. 14 (June 10, 2011): 1167–77. http://dx.doi.org/10.1142/s0217984911026255.

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We consider a lattice model in which phonons scatter with pairs of electrons carrying a net spin current. All the energy eigenvalues and eigenvectors of this model can be obtained analytically. For a suitable choice of parameters the ground state consists of a Fermi sea of non-interacting electrons, with a layer of paired electrons on top of it. The binding energy of one electron pair is partly canceled by increased kinetic energy of another pair of electrons. This results in a momentum-dependent gap in the spectrum of the electrons.
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Schmitz, S. F. Hsu, and C. Castillo-Chavez. "A note on pair-formation functions." Mathematical and Computer Modelling 31, no. 4-5 (February 2000): 83–91. http://dx.doi.org/10.1016/s0895-7177(00)00025-x.

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Smith, David M. D., and Neil F. Johnson. "Pair formation within multi-agent populations." Physica A: Statistical Mechanics and its Applications 363, no. 1 (April 2006): 151–58. http://dx.doi.org/10.1016/j.physa.2006.01.056.

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Matsumoto, Masakazu, Hideki Tanaka, and Koichiro Nakanishi. "Acetonitrile pair formation in aqueous solution." Journal of Chemical Physics 99, no. 9 (November 1993): 6935–40. http://dx.doi.org/10.1063/1.465838.

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Dissertations / Theses on the topic "Pair Formation"

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Fumanal, Quintana Maria. "Radical-Pair Formation in Organic π-Stacked Architectures." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/345173.

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Interest in organic molecule-based materials has extraordinarily grown in both the electronic and data storage industries. Specifically, research in the development of new plastic devices for technological proposes has emerged as they may provide lower manufacturing costs, more versatile synthetic processes and better mechanical properties (i.e. transparency, flexibility) than standard inorganic materials. However, in order to compete with these inorganic-based materials in terms of effectiveness, their conductive, magnetic and switchable characteristics must be improved, such that they can be applied as high-performance molecular conductors, magnets and memory devices. The physical properties of these organic materials not only depend on the nature of its constituent molecules (magnetic, biocompatible) but on how they organize in the solids (polymeric, amorphous, crystalline). Therefore, predicting and achieving a particular final behaviour is challenging and requires investigations on the structure-property relationships as well as on the nature of the chemical species. Over the last years, continuous effort has been done aimed at developing new purely organic-based materials with technologically relevant properties. Since Gomberg's synthesis of the triphenylmethyl neutral radical, a large variety of stable organic radicals have been reported, such as nitroxides, verdazyl-, phenoxyl-, phenalenyl-, dithiazolyl- and triazinyl-based compounds, as well as several functionalized radical ions based on tetracyanoethylene (TCNE), and tetrathiafulvalene (TTF+.) among others. These particular families of organic radicals can be used as versatile templates for the synthesis of new derivatives with improved characteristics by the introduction of different substituents into their basic skeleton. However, further progress in novel materials must be achieved through a rational design of new chemical structures. In this context, the available computational tools can substantially contribute to obtain the necessary knowledge of the factors controlling the final target physical properties, namely conductivity, magnetism and bistability, which are essentially dominated by the electronic structure of these materials. The work presented in this thesis is devoted to study different purely organic derivatives that have been shown to be promising for the development of new functional materials. In particular, the attention has been focused on three different families of organic radicals that present interesting physical properties as a consequence of a Tr-stacked radical-pair formation in the condensed phase, that is: (1) radical ions, (2) phenalenyl- and (3) triazinyl-based compounds. Overall, the present PhD thesis aims at contributing to the field of computational chemistry as well as to the understanding of the electronic properties that govern the Tr-dimerization of these systems, which, ultimately, determine their magnetic and switchable behaviour.
En els últims anys, s'ha fet un esforç continu per desenvolupar materials nous purament orgànics amb propietats tecnològicament rellevants. Des de la síntesi de Gomberg del radical neutre trifenilmetil, s'ha reportat una gran varietat de radicals orgànics estables, com ara els nitròxids, verdazils, fenoxils, fenalenils, ditiazolils i compostos basats en triazinil, així com diversos ions radicals funcionalitzats basats en tetracianoetilè (TCNE-•), i tetratiafulvalè (TTF1-.), entre d'altres. Aquestes famílies de radicals orgànics s'utilitzen per a la síntesi de nous derivats amb característiques millorades a partir de la introducció de diferents substituents en el seu esquelet bàsic. No obstant això, els avenços en nous materials s'han d'aconseguir a través d'un disseny racional de les noves estructures químiques. En aquest context, les eines computacionals disponibles poden contribuir substancialment a obtenir els coneixements necessaris sobre els factors que controlen les propietats físiques desitjades, a saber, la conductivitat, el magnetisme i la biestabilitat, dominades fonamentalment per l'estructura electrònica d'aquests materials. El treball presentat en aquesta tesi està dedicat a estudiar diferents derivats purament orgànics que han demostrat ser prometedors per al desenvolupament de nous materials funcionals. En particular, l'atenció s'ha centrat en tres famílies de radicals orgànics que presenten propietats físiques interessants com a conseqüència de la formació de parells de radical Tr, aquests són: (1) els ions radicals, (2) els fenalenils i (3) els compostos basats en triazinil. En global, aquesta tesi doctoral té com a objectiu contribuir al camp de la química computacional, així com a la comprensió de les propietats electròniques que regeixen la dimerització Tr d'aquests sistemes, que, en última instància, determina el seu comportament magnètic i commutable.
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Stolwijk, Nicolaas A. "Ionic transport and pair formation in polymer electrolytes." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-181807.

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Stolwijk, Nicolaas A. "Ionic transport and pair formation in polymer electrolytes." Diffusion fundamentals 20 (2013) 20, S. 1, 2013. https://ul.qucosa.de/id/qucosa%3A13585.

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Robertson, Gregory J. "Pair formation, mating system, and winter philopatry in Harlequin Ducks." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq24345.pdf.

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Wood, Suzannah. "Understanding the Formation of Kinetically Stable Compounds and the Development of Thin Film Pair Distribution Function Analysis." Thesis, University of Oregon, 2017. http://hdl.handle.net/1794/22645.

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Navigating the synthesis landscape poses many challenges when developing novel solid state materials. Advancements in both synthesis and characterization are necessary to facilitate the targeting of specific materials. This dissertation discusses the formation of chalcogenide heterostructures and their properties in the first part and the development of thin film pair distribution function analysis (tfPDF) in the second part. The heterostructures were formed by the self-assembly of designed precursors deposited by physical vapor deposition in a modulated elemental reactants approach, which provides the control and predictability to synthesis. Specifically, a series of (BiSe)1+δ(TiSe2)n, where n = 2,3,&4, were synthesized to explore the extent of charge transfer from the BiSe to TiSe2 layers. To further explore the role Bi plays in charge donation, a family of structurally similar compounds, (BixSn1-xSe)1+TiSe2 , where 0≥x≥1, were synthesized and characterized. Electrical measurements show doping efficiency decreases as x increases, correlated with the structural distortion and the formation of periodic antiphase boundaries containing Bi-Bi pairs. The first heterostructures composed of three unique structural types were synthesized and Bi2Se3 layer thickness was used to tune electrical properties and further explore charge transfer. To better understand the potential energy landscape on which these kinetically stable compounds exist, two investigations were undertaken. The first was a study of the formation and subsequent decomposition of [(BiSe)1+δ]n(TiSe2)n compounds, where n= 2&3, the second an investigation of precursor structure for thermodynamically stable FeSb2 and kinetically stable FeSb3. The second section describes the development of thin film pair distribution function analysis, a technique in which total scattering data for pair distribution function (PDF) analysis is obtained from thin films, suitable for local structure analysis. This study illustrates how analysis of the local structure in amorphous precursor films can help to understand the crystallization processes of metastable phases and enables a range of new local structure studies of thin films. tfPDF was then demonstrated on In-Ga-O film materials and compared to traditional powder PDF analysis. This highlights differences between the products, and the utility of tfPDF to determined structural features of amorphous materials. This dissertation includes previously published and unpublished co-authored materials.
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Geigenfeind, Thomas [Verfasser], and Matthias [Akademischer Betreuer] Schmidt. "Internal and external colloidal anisotropy : pair interactions, sedimentation, and non-equilibrium lane formation / Thomas Geigenfeind ; Betreuer: Matthias Schmidt." Bayreuth : Universität Bayreuth, 2019. http://d-nb.info/1198308621/34.

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Rudolph, Wolfram W., and Gert Irmer. "Hydration and ion pair formation in common aqueous La(III) salt solutions: a Raman scattering and DFT study." Royal Society of Chemistry, 2015. https://tud.qucosa.de/id/qucosa%3A36118.

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Raman spectra of aqueous lanthanum perchlorate, triflate (trifluorosulfonate), chloride and nitrate solutions were measured over a broad concentration (0.121–3.050 mol Lˉ¹) range at room temperature (23 °C). A very weak mode at 343 cmˉ¹ with a full width at half height at 49 cmˉ¹ in the isotropic spectrum suggests that the nona-aqua La(III) ion is thermodynamically stable in dilute perchlorate solutions (∼0.2 mol Lˉ¹) while in concentrated perchlorate solutions outer-sphere ion pairs and contact ion pairs are formed. The La³⁺ nona-hydrate was also detected in a 1.2 mol Lˉ¹ La(CF₃SO₃)₃(aq). In lanthanum chloride solutions chloro-complex formation was detected over the measured concentration range from 0.5–3.050 mol Lˉ¹. The chloro-complexes in LaCl₃(aq) are fairly weak and disappear with dilution. At a concentration <0.1 mol Lˉ¹ almost all complexes disappeared. In LaCl₃ solutions, with additional HCl, a series of chloro-complexes of the type [La(OH₂)₉₋nCln]⁺³⁻ⁿ (n = 1–3) were formed. The La(NO₃)₃(aq) spectra were compared with a spectrum of a 0.409 mol Lˉ¹ NaNO₃(aq) and it was concluded that in La(NO₃)₃(aq) over the concentration range from 0.121–1.844 mol Lˉ¹, nitrato-complexes, [La(OH₂)₉₋n-(NO₃)n]⁺³⁻ⁿ (n = 1, 2) were formed. These nitrato-complexes are quite weak and disappear with dilution <0.01 mol Lˉ¹. DFT geometry optimizations and frequency calculations are reported for a lanthanumnona-hydrate with a polarizable dielectric continuum in order to take the solvent into account. The bond distances and angles for the cluster geometry of [La(OH₂)₉]³⁺ with the polarizable dielectric continuum are in good agreement with data from recent structural experimental measurements and high quality simulations. The DFT frequency of the La–O stretching mode at 328.2 cmˉ¹, is only slightly smaller than the experimental one.
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Bădescu, Toma, Yujin Yang, Frank Bertoldi, Ann Zabludoff, Alexander Karim, and Benjamin Magnelli. "Discovery of a Protocluster Associated with a Ly α Blob Pair at z = 2.3." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/625775.

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Bright Ly alpha blobs (LABs)-extended nebulae with sizes of similar to 100 kpc and Ly alpha luminosities of similar to 10(44) erg s(-1)-often reside in overdensities of compact Ly alpha emitters (LAEs) that may be galaxy protoclusters. The number density, variance, and internal kinematics of LABs suggest that they themselves trace group-like halos. Here, we test this hierarchical picture, presenting deep, wide-field Ly alpha narrowband imaging of a 1 degrees x. 0 degrees.5 region around a LAB pair at z = 2.3 discovered previously by a blind survey. We find 183 Lya emitters, including the original LAB pair and three new LABs with Ly alpha luminosities of (0.9-1.3) x 10(43) erg s(-1) and isophotal areas of 16-24 arcsec2. Using the LAEs as tracers and a new kernel density estimation method, we discover a large-scale overdensity (Bootes J1430+3522) with a surface density contrast of delta(Sigma) = 2.7, a volume density contrast of delta similar to 10.4, and a projected diameter of approximate to 20 comoving Mpc. Comparing with cosmological simulations, we conclude that this LAE overdensity will evolve into a present-day Coma-like cluster with log(M/M-circle dot) similar to 15.1 +/- 0.2. In this and three other wide-field LAE surveys re-analyzed here, the extents and peak amplitudes of the largest LAE overdensities are similar, not increasing with survey size, and implying that they were indeed the largest structures then and today evolve into rich clusters. Intriguingly, LABs favor the outskirts of the densest LAE concentrations, i.e., intermediate LAE overdensities of delta(Sigma) = 1-2. We speculate that these LABs mark infalling protogroups being accreted by the more massive protocluster.
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Mazyad, Hanaa. "Une approche Multi-agents à Architecture P2P pour l'apprentissage collaboratif." Phd thesis, Université du Littoral Côte d'Opale, 2013. http://tel.archives-ouvertes.fr/tel-00845225.

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Les Systèmes multi-agents ou SMA proposent une approche originale de conception de systèmes intelligents et coopératifs. Ils se caractérisent par la distribution du contrôle global du système et par la présence d'agents autonomes évoluant dans un environnement partagé et dynamique. De plus, il existe plusieurs interdépendances entre les buts des agents, leurs capacités et les ressources qu'ils utilisent, donc afin d'éviter d'éventuels conflits, de favoriser la synergie des activités des agents et de partager les ressources de l'environnement commun, il est important que les agents coordonnent leurs actions. Nous nous sommes intéressés, dans le cadre de cette thèse, au déploiement des systèmes multi-agents sur une architecture pair à pair (Peer-to-Peer ou P2P) et ceci dans le but d'établir la communication entre ces agents et les relier entre eux. Cependant, du fait de la nature dynamique des systèmes P2P où chaque pair peut apparaître et disparaître à tout moment, des nouveaux problèmes se posent pour la coordination d'agents nécessitant des mécanismes de coordination adaptés au contexte spécifique des P2P. Pour cela, nous avons proposé une méthode de formation de groupe comme solution à ces problèmes. Nous nous sommes intéressés ensuite à l'application des systèmes multi-agents à architecture P2P au domaine d'apprentissage collaboratif en ligne où des apprenants contribuent aux apprentissages du groupe, et en retour, le groupe contribue à ceux des apprenants et c'est la cohérence du collectif qui permet d'atteindre l'objectif. Cependant, l'apprentissage collaboratif à distance implique des nouveaux rôles pour l'enseignant ainsi que pour les apprenants. Il est donc essentiel de définir ces rôles pour identifier les besoins qui en découlent pour pouvoir intégrer à l'outil informatique des fonctionnalités afin de satisfaire ces besoins. En effet, il est essentiel de fournir aux enseignants et apprenants la possibilité d'avoir des informations sur la progression de leur apprentissage ainsi que sur les niveaux de collaboration et de sociabilité de chaque apprenant et du groupe. Enfin, nous avons proposé, comme application de nos travaux, un système appelé COLYPAN (COllaborative Learning sYstem for Project mANagment) conçu pour l'apprentissage à distance et de façon collaborative de la gestion des projets.
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Marggi, Poullain Sonia. "Rôle des états de Rydberg dans la dynamique de photoionisation et de formation de paires d’ions (NO+,O-) de la molécule NO2 : photoémission induite par rayonnement synchrotron et impulsions lasers femtosecondes." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112006/document.

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L’étude comparée des réactions de formation de paires d’ions et de simple photoionisation de la molécule NO2 induites par rayonnement synchrotron (RS) d’une part et par impulsions laser femtosecondes (fs) d’autre part, démontre le rôle remarquable de l’excitation résonante d’états de Rydberg dans la dynamique électronique et nucléaire induite. Trois réactions principales, la photoionisation non dissociative (NO2+ (X 1Σ+g) + e), la photoionisation dissociative (NO+ (X 1Σ+) + O(3P) + e) et la formation de paires d'ions, (NO+ (X 1Σ+) + O- (2P)), ont été caractérisées en utilisant la méthode des corrélations vectorielles ou spectroscopie en coïncidence des impulsions du photoélectron et des photoions, auprès des sources RS (SOLEIL, DESIRS) et lasers fs (CEA, Saclay), respectivement. Le diagramme de corrélation des énergies cinétiques électron-ion, première observable issue de ces mesures, met en évidence un partage de l’énergie en excès entre noyaux et électrons qui dépend fortement du mode d’excitation photonique. Les déviations significatives observées par rapport aux profils d’ionisation de type Franck Condon sont attribuées à des couplages vibroniques entre états excités NO2*, tels que ceux induits par une intersection conique. Les chemins réactionnels identifiés confirment le rôle de l’excitation des séries de Rydberg [R*(6a1)-1] et [R*(4b2)-1] intervenant comme états intermédiaires dans l’excitation multiphotonique ou dans le continuum d’ionisation exploré. Une étude complémentaire par spectroscopie à haute résolution des états [R*(6a1)-1] a été mise en œuvre (UBC, Vancouver).Pour une réaction de photoionisation dissociative (PID), l’observable la plus complète est la distribution angulaire des photoélectrons dans le référentiel lié à la vitesse de recul de l’ion fragment (RFPAD) déduite de la mesure de la corrélation vectorielle (Vi, Ve, P). Afin d’accéder aux éléments de matrice dipolaire décrivant la photoionisation de l’état électronique considéré, le formalisme développé en collaboration avec R. R. Lucchese (Texas A&M) décrivant la photoémission dans le référentiel moléculaire pour la simple PID d'une molécule linéaire par excitation à un photon, a été étendu à l'étude des réactions de PID par excitation multiphotonique d'une molécule polyatomique, telle que la molécule NO2 de symétrie C2v. L’analyse multivariée de la RFPAD multiphotonique proposée constitue une stratégie fructueuse en vue d’extraire l’information optimale sur la dynamique complexe de photoionisation et de réaliser une comparaison détaillée entre les résultats expérimentaux et les calculs de photoionisation des états excités de la molécule
The comparative study of ion pair formation and simple photoionization of the NO2 molecule induced by synchrotron radiation (SR) on the one hand and by femtosecond (fs) pulses on the other hand reveals the remarkable role of Rydberg states in the induced electronic and nuclear dynamics. Three main reactions, namely (NO2+ (X 1Σ+g) + e) non dissociative photoionization, (NO+ (X 1Σ+) + O(3P) + e) dissociative photoionization and (NO+ (X 1Σ+) + O- (2P)) ion pair formation have been characterized using the vector correlation method, or photoion and photoelectron coincidence momentum spectroscopy, at SR sources (SOLEIL DESIRS) and at fs laser platforms (CEA, Saclay), respectively. The electron-ion kinetic energy correlation diagram, which is the first observable obtained from these measurements, highlights the excess energy sharing among nuclei and electrons, which strongly depends on the photon excitation mode. The observed remarkable deviations from Franck Condon ionization profiles are attributed to vibronic couplings such as those induced at a conical intersection. The identified reaction pathways confirm the role of the [R*(6a1)-1] and [R*(4b2)-1] Rydberg series excitation as stepping states in multiphoton excitation or in the explored ionization continua. A complementary study of high resolution spectroscopy of [R*(6a1)-1] Rydberg series has been performed (UBC, Vancouver). For a dissociative photoionization (DPI) process, the most complete observable is the photoelectron angular distribution in the reference frame attached to the recoil ion fragment velocity (RFPAD) deduced from the measured (Vi, Ve, P) vector correlation. In order to get access to the dipole matrix elements describing photoionization of the considered excited electronic state, the formalism developed in collaboration with R. R. Lucchese (Texas A&M) describing molecular frame photoemission for a DPI of a linear molecule by one-photon excitation has been extended to the study of DPI processes induced by multiphoton excitation for a polyatomic molecule, such as the NO2 molecule of C2v symmetry. The proposed multivariate analysis of the multiphoton RFPAD constitutes a successful strategy to extract the optimal information on the complex photoionization dynamics and to perform a detailed comparison between experimental results and calculations of photoionization of the molecular excited states
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Books on the topic "Pair Formation"

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Hon, Jason J. Hierarchical dynamics of individual RNA helix base pair formation and disruption. [New York, N.Y.?]: [publisher not identified], 2017.

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Frische, Joachim. The marine angelfishes: Royalty in the aquarium : acquisition, care, and pair formation : a quarterly. Neptune, N.J: T.F.H. Publications, 1998.

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Turcotte, Julie. Nouveaux résultats sur les déterminants de la formation dans les emplacements canadiens. Ottawa, Ont: Statistique Canada, 2003.

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Turcotte, Julie. Nouveaux résultats sur les déterminants de la formation dans les emplacements canadiens. Hull, Qué: Développement des ressources humaines Canada, Direction générale de la recherche appliquée, 2002.

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E-formation: NTIC et reengineering de la formation professionnelle. Paris: Dunod, 2000.

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Léonard, André. Enquête sur l'éducation et la formation des adultes: Pourquoi le taux de participation à la formation liée à l'empoi a-t-il baissé durant les années 1990 au Canada? Hull, Qué: Développement des ressources humaines Canada, Direction générale de la recherche appliquée, 2002.

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Green, Lyndsay. Partenariats pour les technologies d'apprentissage: Études de cas et facteurs critiques de succès. Hull, Qué: Bureau des technologies d'apprentissage, 1999.

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Réussir la formation par compétences. Montréal: Guérin, 2000.

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Michaud, Bernard. L' expression et la formation par l'ordinateur: Une méthode universelle de scénarisation interactive. Montréal: Vézina, 1986.

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R, Powell Michael, and Environmental Physiology/Biophysics Laboratory (Lyndon B. Johnson Space Center), eds. Project ARGO: Gas phase formation in simulated microgravity. [Houston, Tex.]: National Aeronautics and Space Administration, Environmental Physiology/Biophysics Laboratory, 1993.

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Book chapters on the topic "Pair Formation"

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Inaba, Hisashi. "Pair Formation Models." In Age-Structured Population Dynamics in Demography and Epidemiology, 181–218. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-0188-8_4.

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Berkowitz, J. "Photoion-Pair Formation." In VUV and Soft X-Ray Photoionization, 263–89. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0315-2_8.

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Castillo-Chavez, Carlos, Stavros Busenberg, and Ken Gerow. "Pair Formation in Structured Populations." In Differential Equations with Applications in Biology, Physics, and Enqineering, 47–66. CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.1201/9781315141244-5.

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Hadeler, K. P. "Pair Formation in Age-Structured Populations." In Evolution and Control in Biological Systems, 91–102. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2358-4_9.

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Waldstätter, Roland. "Pair Formation in Sexually-Transmitted Diseases." In Lecture Notes in Biomathematics, 260–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-93454-4_12.

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Dávila, Mauricio, Marisa Panizzi, and Darío Rodríguez. "Proposal for the Formation of Experimental Pair Programmers." In Communications in Computer and Information Science, 135–44. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75214-3_13.

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Sobral, Sónia Rolland. "Pair Programming and the Level of Knowledge in the Formation of Pairs." In Advances in Intelligent Systems and Computing, 212–21. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72660-7_21.

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Klug, D. R., J. R. Durrant, G. Hastings, Q. Hong, D. M. Joseph, J. Barber, and G. Porter. "Primary Radical Pair Formation in Photosystem-Two Reaction Centres." In Ultrafast Phenomena VIII, 546–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84910-7_175.

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Esvan, François. "On the dynamism of aspectual pair formation in Czech." In Biblioteca di Studi Slavistici, 103–14. Florence: Firenze University Press, 2017. http://dx.doi.org/10.36253/978-88-6453-698-9.08.

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This paper aims to analyze the relationship between. perfectivisation and secondary imperfectivisation in Czech. Recent data show for loan verbs a strong tendency, after a short phase of biaspectualism, towards the creation of aspectual pairs through perfectivisation, e.g. bukovat - zabukovat (to book). This step does not necessarily conclude the process, since secondary imperfectives like zabukovávat are also frequent. This development is in opposition to the tendency towards the elimination of secondary imperfectives, which characterized the historical evolution of the Czech language (Šlosar 1981).
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Ando, Koji, and James T. Hynes. "Acid-Base Proton Transfer and Ion Pair Formation in Solution." In Advances in Chemical Physics, 381–430. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470141694.ch6.

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Conference papers on the topic "Pair Formation"

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Kaindl, Robert A., Marc A. Carnahan, Joseph Orenstein, Daniel S. Chemla, Seongshik Oh, and James N. Eckstein. "Cooper pair formation dynamics in Bi2Sr2CaCu2O8+δ." In International Quantum Electronics Conference. Washington, D.C.: OSA, 2004. http://dx.doi.org/10.1364/iqec.2004.ituf1.

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Chen, Chen, Zhijin Wang, and Ismet Gursul. "Unsteady Nature of Vortex Pair in Formation Flight." In 47th AIAA Fluid Dynamics Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-3306.

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Sergio Sánchez, S., J. J. Sánchez Mondragón, J. C. García Melgarejo, and A. Alejo-Molina. "Entanglement of formation of pair of quantum dots." In International Commission for Optics (ICO 22), edited by Ramón Rodríguez-Vera and Rufino Díaz-Uribe. SPIE, 2011. http://dx.doi.org/10.1117/12.903406.

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Lehnert, B., Padma K. Shukla, Bengt Eliasson, and Lennart Stenflo. "Wave-Particle Properties and Pair Formation of the Photon." In FRONTIERS IN MODERN PLASMA PHYSICS: 2008 ICTP International Workshop on the Frontiers of Modern Plasma Physics. AIP, 2008. http://dx.doi.org/10.1063/1.3013779.

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Xie, Junling, and Liping Liu. "A Numerical Study of Air-Side Heat Transfer Enhancement Using V-Formation Delta-Winglet Vortex Generators in Heat Exchangers." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65862.

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The numerical study proposed is to investigate the effectiveness of delta-winglet vortex generators (VGs) used for heat-transfer enhancement in a horizontal rectangular channel as a typical air passage for fin-and-tube heat exchangers. The effects of four different configurations of vortex generators have been investigated: (1) single pair VGs with a 30 degree attack angle; (2) 2-pair VG array with a 30 degree attack angle; (3) single pair VGs with a 45 attack angle; (4) 2-pair VG array with a 45 attack angle. The numerical results indicate that average Nusselt number increase is 31%–38% and 51%–71% for the channel mounted with VGs with a 30 degree attack angle and a 45 degree attack angle, respectively. The enhancement for single large pair of VGs is higher than that for a V-formation array with 2 small pairs. However, VGs also introduce extra pressure drop penalties to the channel flow, and higher heat-transfer performance is also accompanied by a larger pressure drop penalty. According to the results, a single large pair of VGs with 45 attack angle shows the best overall performance among all the configurations investigated.
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Zhang, Kewen, Nikolaos Gatsonis, John J. Blandino, and Michael A. Demetriou. "Formation Flying Maintenance of a Nanosat Pair Using Propulsive Optimal Control." In AIAA SPACE and Astronautics Forum and Exposition. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2017. http://dx.doi.org/10.2514/6.2017-5315.

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Wei, Peng-Sheng, and Wei-Tsung Chen. "A pair of pore formation affected by convection during unidirectional solidification." In 7TH INTERNATIONAL CONFERENCE ON NANO AND MATERIALS SCIENCE (ICNMS 2019). Author(s), 2019. http://dx.doi.org/10.1063/1.5094320.

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Dehmer, Joseph L., P. M. Dehmer, Stephan T. Pratt, and Elizabeth F. McCormack. "Competition among autoionization, predissociation, and ion-pair formation in molecular hydrogen." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by Cheuk Yiu Ng. SPIE, 1993. http://dx.doi.org/10.1117/12.143082.

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Hua, Xiao, Sandy Sanchez, and Ullrich Steiner. "Phase Evolution During Perovskite Formation – An Insight from Pair Distribution Function." In Online Conference on Atomic-level Characterisation of Hybrid Perovskites. València: Fundació Scito, 2022. http://dx.doi.org/10.29363/nanoge.hpatom.2022.008.

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Cao, Liang, Hang-Yu Wang, and Fa-Xing Lu. "Operational Capability Evaluation of Surface Warship Formation Based on Set Pair Analysis." In 2016 8th International Conference on Intelligent Human-Machine Systems and Cybernetics (IHMSC). IEEE, 2016. http://dx.doi.org/10.1109/ihmsc.2016.204.

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Reports on the topic "Pair Formation"

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Peterson, James R. Metastable Negative Ions and Ion Pair Formation. Fort Belvoir, VA: Defense Technical Information Center, January 1989. http://dx.doi.org/10.21236/ada207886.

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Caliskan, Adil, and Servet Caliskan. Evenaged Cone Pair Formation in Calabrian Pine (Pinus brutia Ten.). "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, August 2019. http://dx.doi.org/10.7546/crabs.2019.08.05.

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Pernicka, Henry J. Design, Integration and Flight Test of a Pair of Autonomous Spacecraft Flying in Formation. Fort Belvoir, VA: Defense Technical Information Center, May 2013. http://dx.doi.org/10.21236/ada584818.

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Cook, Joshua, Laura Ray, and James Lever. Dynamics modeling and robotic-assist, leader-follower control of tractor convoys. Engineer Research and Development Center (U.S.), February 2022. http://dx.doi.org/10.21079/11681/43202.

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This paper proposes a generalized dynamics model and a leader-follower control architecture for skid-steered tracked vehicles towing polar sleds. The model couples existing formulations in the literature for the powertrain components with the vehicle-terrain interaction to capture the salient features of terrain trafficability and predict the vehicles response. This coupling is essential for making realistic predictions of the vehicles traversing capabilities due to the power-load relationship at the engine output. The objective of the model is to capture adequate fidelity of the powertrain and off-road vehicle dynamics while minimizing the computational cost for model based design of leader-follower control algorithms. The leader-follower control architecture presented proposes maintaining a flexible formation by using a look-ahead technique along with a way point following strategy. Results simulate one leader-follower tractor pair where the leader is forced to take an abrupt turn and experiences large oscillations of its drawbar arm indicating potential payload instability. However, the follower tractor maintains the flexible formation but keeps its payload stable. This highlights the robustness of the proposed approach where the follower vehicle can reject errors in human leader driving.
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Flandin, Simon, Germain Poizat, and Romuald Perinet. Contribuer à la sécurité industrielle «par le facteur humain»: un regard pour aider à (re)penser la formation. Fondation pour une culture de sécurité industrielle, October 2019. http://dx.doi.org/10.57071/207bbe.

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Ce «Regard» s’adresse au lecteur intéressé pour réfléchir à l’idée et aux moyens d’un développement de la sécurité industrielle par le biais de la formation, en particulier quand elle a pour objet la gestion de situations difficiles. Dans l’approche proposée par les auteurs, la formation n’est pas réductible à l’apport et à l’acquisition de savoirs devant être maîtrisés par les formés, mais consiste en la conception et l’accompagnement de dispositifs encourageant des actions négociées et jugées souhaitables par le formateur et les formés.
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Lane, L. S., and S. Zhao. Bedrock geology, Mount Huley and Mount Harbottle, Yukon, NTS 116-G/15 and 16. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/329451.

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This map encompasses two 1:50 000 scale map areas at the southw estern margin of Eagle Plain sedimentary basin, in the northern Canadian Cordillera. The eastern part is underlain by the Upper Cretaceous Park in, Fishing Branch, Burnthill Creek , and Cody Creek formations of the Eagle Plain Group, w here shale and sandstone beds dip gently eastw ard to northw ard. The w estern part of the map contains three large anticlinesyncline pairs trending north-northw est-south-southeast that expose Low er Cretaceous W hitestone R iver Formation lying unconformably on Paleoz oic strata of Middle Devonian to Permian age, comprising Ogilvie, Hart R iver, Ettrain, and J ungle Creek formations. The folds define domes and basins reflecting the influence of two orthogonal fold-thrust events during Cretaceous- Paleogene Cordilleran deformation. At the level of the Cretaceous units, the synclines define symmetrical continuous structures, w hereas the anticlines, exposing Paleoz oic strata, define asymmetric en échelon structures suggesting that pre-existing structural or stratigraphic trends influenced their deformation.
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de Marcellis-Warin, Nathalie. Analyse comparative d’écosystèmes en IA dans le but de repérer les pratiques innovantes en matière de formation et de transfert de connaissances. CIRANO, November 2022. http://dx.doi.org/10.54932/sxoh3928.

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Les défis actuels des écosystèmes en IA sont caractérisés par une forte demande de talents en intelligence numérique, une demande de formations qui répondent aux besoins du marché, l’émergence de nouveaux profils d’emploi, une demande en hausse pour le rehaussement des compétences des travailleurs en emploi et une adoption de l’IA par les entreprises encore limitée à certains secteurs. C’est ce qui a motivé la mise en place de nombreuses initiatives des établissements d’enseignements et d’autres types d’acteurs, autant en matière de formation que de transfert de connaissances. Pour le Québec, les rapports qui ont été publiés en 2020 et 2021 ainsi que les entrevues menées auprès des acteurs de l’écosystème en IA ont permis de faire un survol des forces et des faiblesses. Le Québec est reconnu pour son importante communauté de recherche en IA et son positionnement pour un développement responsable de l’IA. De nombreux établissements d’enseignement ont remodelé leurs programmes pour répondre aux enjeux du numérique et aux besoins du marché. Des initiatives concertées cégeps-universités ont été mises en place et des collaborations de recherche appliquée ou l’intégration de stages ont vu le jour. Plusieurs instituts et organisations participent à accompagner les entreprises dans l’adoption de l’IA. Toutefois, la multiplicité des acteurs est souvent vue comme un obstacle pour les entreprises. Plusieurs organisations n’utilisent pas l’IA faute de compréhension générale de l’IA et de ses applications et en raison de la difficulté d’évaluer leur niveau de maturité, d’identifier les compétences nécessaires ou les besoins de formation pour les employés. Dans le cadre de cette étude, six grands constats ont pu être faits concernant les pratiques innovantes en matière de formation et de transfert de connaissances existantes à partir de l’analyse de plusieurs écosystèmes en IA dans plusieurs régions du monde. À la suite de ces constats et des discussions que nous avons eues avec des représentants de l’écosystème québécois, nous avons identifié certaines pistes qui pourraient être recommandées pour le Québec.
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Oelheim, Russell. Environmental and age differences in the formation of romantic pairs and self-monitoring in adolescents. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.6314.

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Savard, Annie, Alexandre Cavalcante, and Daniela Caprioara. L’enseignement des mathématiques dans les écoles secondaires du Québec: L’alignement entre les enseignants, les concepts mathématiques des programmes ministériels et les concepts mathématiques utilisés dans les emplois STIM. CIRANO, 2022. http://dx.doi.org/10.54932/mldf5092.

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Ce rapport présente une étude portant sur les concepts et processus enseignés à l’école secondaire au Québec. Il étudie l’alignement entre les concepts enseignés et les concepts utilisés par des travailleurs de l’industrie STIM du Québec, l’alignement entre les motivations et les tensions des enseignants et les concepts mathématiques enseignés, ainsi que l’alignement entre l’épistémologie des enseignants de mathématiques du secondaire, les concepts mathématiques du programme de formation et les mathématiques utilisées par les travailleurs de l’industrie STIM. Dans un premier temps, nous avons fait une analyse des concepts et des processus mathématiques présents dans le programme de formation de l’école québécoise du secondaire, volet mathématique. Nous avons comparé cette analyse avec d’autres programmes de mathématiques. Nous avons étudié les métiers STIM représentés dans les manuels scolaires québécois. Dans un deuxième temps, nous avons interrogé des travailleurs STIM quant aux concepts mathématiques employés dans le cadre de leur travail. Nous avons comparé ces concepts mathématiques à ceux présents dans le Programme de formation de l’école québécoise. Dans un troisième temps, nous avons interrogé des enseignants de mathématiques du secondaire quant à leurs représentations des concepts mathématiques du programme. Nous leur avons fait parvenir un questionnaire et nous avons réalisé des groupes de discussion. Nous avons comparé leurs représentations de ces concepts mathématiques à ceux présents dans le Programme de formation de l’école québécoise. Nos résultats suggèrent que certains concepts mathématiques sont beaucoup utilisés par les travailleurs STIM, mais sont peu enseignés au secondaire. C’est le cas des statistiques qui sont principalement enseignées aux élèves du volet Culture Société Technique, volet qui ne conduit pas à se qualifier dans les programmes STIM du cégep et de l’université. Qui plus est, une grande proportion des enseignants rencontrés disent ne pas apprécier les statistiques. Ces résultats montrent un désalignement important qui pourrait conduire les élèves à une vision tronquée des mathématiques utilisées dans les carrières STIM.
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Wilson, Thomas E., Avraham A. Levy, and Tzvi Tzfira. Controlling Early Stages of DNA Repair for Gene-targeting Enhancement in Plants. United States Department of Agriculture, March 2012. http://dx.doi.org/10.32747/2012.7697124.bard.

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Gene targeting (GT) is a much needed technology as a tool for plant research and for the precise engineering of crop species. Recent advances in this field have shown that the presence of a DNA double-strand break (DSB) in a genomic locus is critical for the integration of an exogenous DNA molecule introduced into this locus. This integration can occur via either non-homologous end joining (NHEJ) into the break or homologous recombination (HR) between the broken genomic DNA and the introduced vector. A bottleneck for DNA integration via HR is the machinery responsible for homology search and strand invasion. Important proteins in this pathway are Rad51, Rad52 and Rad54. We proposed to combine our respective expertise: on the US side, in the design of zincfinger nucleases (ZFNs) for the induction of DNA DSBs at any desired genomic locus and in the integration of DNA molecules via NHEJ; and on the Israeli side in the HR events, downstream of the DSB, that lead to homology search and strand invasion. We sought to test three major pathways of targeted DNA integration: (i) integration by NHEJ into DSBs induced at desired sites by specially designed ZFNs; (ii) integration into DSBs induced at desired sites combined with the use of Rad51, Rad52 and Rad54 proteins to maximize the chances for efficient and precise HR-mediated vector insertion; (iii) stimulation of HR by Rad51, Rad52 and Rad54 in the absence of DSB induction. We also proposed to study the formation of dsT-DNA molecules during the transformation of plant cells. dsT-DNA molecules are an important substrate for HR and NHEJ-mediatedGT, yet the mode of their formation from single stranded T-DNA molecules is still obscure. In addition we sought to develop a system for assembly of multi-transgene binary vectors by using ZFNs. The latter may facilitate the production of binary vectors that may be ready for genome editing in transgenic plants. ZFNs were proposed for the induction of DSBs in genomic targets, namely, the FtsH2 gene whose loss of function can easily be identified in somatic tissues as white sectors, and the Cruciferin locus whose targeting by a GFP or RFP reporter vectors can give rise to fluorescent seeds. ZFNs were also proposed for the induction of DSBs in artificial targets and for assembly of multi-gene vectors. We finally sought to address two important cell types in terms of relevance to plant transformation, namely GT of germinal (egg) cells by floral dipping, and GT in somatic cells by root and leave transformation. To be successful, we made use of novel optimized expression cassettes that enable coexpression of all of the genes of interest (ZFNs and Rad genes) in the right tissues (egg or root cells) at the right time, namely when the GT vector is delivered into the cells. Methods were proposed for investigating the complementation of T-strands to dsDNA molecules in living plant cells. During the course of this research, we (i) designed, assembled and tested, in vitro, a pair of new ZFNs capable of targeting the Cruciferin gene, (ii) produced transgenic plants which expresses for ZFN monomers for targeting of the FtsH2 gene. Expression of these enzymes is controlled by constitutive or heat shock induced promoters, (iii) produced a large population of transgenic Arabidopsis lines in which mutated mGUS gene was incorporated into different genomic locations, (iv) designed a system for egg-cell-specific expression of ZFNs and RAD genes and initiate GT experiments, (v) demonstrated that we can achieve NHEJ-mediated gene replacement in plant cells (vi) developed a system for ZFN and homing endonuclease-mediated assembly of multigene plant transformation vectors and (vii) explored the mechanism of dsTDNA formation in plant cells. This work has substantially advanced our understanding of the mechanisms of DNA integration into plants and furthered the development of important new tools for GT in plants.
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