Relevant bibliographies by topics / Triplets de frontière

Contents

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

Academic literature on the topic 'Triplets de frontière'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Triplets de frontière"

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Qian, Yan, Yeren Ni, Shouzhen Yue, et al. "Spiro[fluorene-9,9′-xanthene]-based universal hosts for understanding structure–property relationships in RGB and white PhOLEDs." RSC Advances 5, no. 38 (2015): 29828–36. http://dx.doi.org/10.1039/c5ra00694e.

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Zhang, Zheng-Feng, and Ming-Der Su. "Insights into the Factors Controlling the Origin of Activation Barriers in the [2 + 2] Cycloaddition Reactions of Heavy Imine-like Molecules Featuring a Ge=Group 15 Double Bond with Heterocumulenes." Molecules 30, no. 9 (2025): 1905. https://doi.org/10.3390/molecules30091905.

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The [2 + 2] cycloaddition reactions of the heterocumulene (N=C=N) with the heavy imine-like molecule Ge=G15-Rea (G15 = Group 15 element) were examined using density functional theory (M06-2X-D3/def2-TZVP). The theoretical findings indicate that the doubly bonded Ge=G15 moiety in Ge=G15-Rea (L1L2Ge=G15L3) is characterized by electron-sharing bonding between the triplet L1L2Ge and triplet G15–L3 fragments. All five Ge=G15-based heavy imine analogues readily undergo [2 + 2] cycloaddition reactions with N=C=N. Energy decomposition analysis (EDA–NOCV) suggests that the [2 + 2] cycloaddition reactio
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Jiang, Jie, Shengwei Guo, Xiaorong Wang, Liyan Xu, Qiang Li, and Xiaoxin Zhang. "Theoretical investigation of the structural and spectroscopic properties of expanded metalloporphyrin complexes." Royal Society Open Science 6, no. 1 (2019): 181199. http://dx.doi.org/10.1098/rsos.181199.

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The frontier molecular orbitals, UV–Vis absorption spectra, charge transfer (CT) and triplet excited states of 12 expanded D–A porphyrin/benzoporphyrin complexes were investigated using the density functional theory (DFT) method and time-dependent DFT in this work. The results showed that thiophene was an effective fragment for absorption of ‘long wavelength’, while the benzoporphyrin worked on the ‘short wavelength’, which was derived from its saddle-shaped structure; this expanded D–A conjugated system had a mild CT process with anthraquinone/isoindigo as acceptors and a strong CT process wi
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Wijesinghe, Channa A., Marja Niemi, Nikolai V. Tkachenko, et al. "Photoinduced electron transfer in a directly linked meso-triphenylamine zinc porphyrin-quinone dyad." Journal of Porphyrins and Phthalocyanines 15, no. 05n06 (2011): 391–400. http://dx.doi.org/10.1142/s108842461100329x.

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A multimodular donor-acceptor system composed of three triphenylamine entities at the meso-positions of a zinc porphyrin macrocycle and a quinone at the fourth meso-position was newly synthesized and characterized. The triphenylamine entities acted as energy transferring antenna units in addition of improving the electron donor ability of the zinc porphyrin. Appreciable electronic interactions of the triphenylamine and quinone entities with the porphyrin π-system were observed. In agreement with the spectral and electrochemical results, the computational studies performed by the DFT B3LYP/3-21
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Wearing, Emily R., Yu-Cheng Yeh, Gianmarco G. Terrones, et al. "Visible light–mediated aza Paternò–Büchi reaction of acyclic oximes and alkenes to azetidines." Science 384, no. 6703 (2024): 1468–76. http://dx.doi.org/10.1126/science.adj6771.

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The aza Paternò–Büchi reaction is a [2+2]-cycloaddition reaction between imines and alkenes that produces azetidines, four-membered nitrogen-containing heterocycles. Currently, successful examples rely primarily on either intramolecular variants or cyclic imine equivalents. To unlock the full synthetic potential of aza Paternò–Büchi reactions, it is essential to extend the reaction to acyclic imine equivalents. Here, we report that matching of the frontier molecular orbital energies of alkenes with those of acyclic oximes enables visible light–mediated aza Paternò–Büchi reactions through tripl
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Ewen, Pascal R., Jan Sanning, Tobias Koch, Nikos L. Doltsinis, Cristian A. Strassert, and Daniel Wegner. "Spectroscopic mapping and selective electronic tuning of molecular orbitals in phosphorescent organometallic complexes – a new strategy for OLED materials." Beilstein Journal of Nanotechnology 5 (November 26, 2014): 2248–58. http://dx.doi.org/10.3762/bjnano.5.234.

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The improvement of molecular electronic devices such as organic light-emitting diodes requires fundamental knowledge about the structural and electronic properties of the employed molecules as well as their interactions with neighboring molecules or interfaces. We show that highly resolved scanning tunneling microscopy (STM) and spectroscopy (STS) are powerful tools to correlate the electronic properties of phosphorescent complexes (i.e., triplet emitters) with their molecular structure as well as the local environment around a single molecule. We used spectroscopic mapping to visualize severa
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Siegert, Benjamin, Andrea Donarini, and Milena Grifoni. "Effects of spin–orbit coupling and many-body correlations in STM transport through copper phthalocyanine." Beilstein Journal of Nanotechnology 6 (December 22, 2015): 2452–62. http://dx.doi.org/10.3762/bjnano.6.254.

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The interplay of exchange correlations and spin–orbit interaction (SOI) on the many-body spectrum of a copper phtalocyanine (CuPc) molecule and their signatures in transport are investigated. We first derive a minimal model Hamiltonian in a basis of frontier orbitals that is able to reproduce experimentally observed singlet–triplet splittings. In a second step SOI effects are included perturbatively. Major consequences of the SOI are the splitting of former degenerate levels and a magnetic anisotropy, which can be captured by an effective low-energy spin Hamiltonian. We show that scanning tunn
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SANTOS, José Carlos dos, and Márcia Regina RISTOW. "CARTOGRAPHIES IN THE TROPIC OF CAPRICORN: AION, CHRONOS AND SOLDIERS IN THE TRIPLE FRONTIER." Boletim de Conjuntura (BOCA) 16, no. 46 (2023): 559–84. https://doi.org/10.5281/zenodo.10049329.

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The Tropic of Capricorn cuts through the Brazilian states of Paraná, São Paulo and Mato Grosso. A territory that, in the 16th century, was under Spanish control. The current triple border formed by Brazil, Paraguay and Argentina are located in this same and modified territory. In it, memories of the past and present intersect in different ways. We present the discussion on the text of a Military Report, written in 1942, written by the 3rd Sergeant of the Army, Manuel Cursino Dias Paredes, during his visit to this triple border; he travels by hydrographic route on the Iguassu, Paraná and I
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Langlois, Adam, Hai-Jun Xu, Paul-Ludovic Karsenti, Claude P. Gros, and Pierre D. Harvey. "Very fast singlet and triplet energy transfers in a tri-chromophoric porphyrin dyad aided by the truxene platform." Journal of Porphyrins and Phthalocyanines 19, no. 01-03 (2015): 427–41. http://dx.doi.org/10.1142/s1088424615500327.

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A trichromophoric dyad composed of an octa-β-alkyl-palladium(II)porphyrin (donor) and two tri-meso-aryl-zinc(II)porphyrins (acceptors) held by a truxene spacer exhibits very fast rates for triplet energy transfers at 77 (kET(T1) = 1.63 × 108 s-1) and 298 K (kET(T1) = 3.44 × 108 s-1), whereas the corresponding singlet energy transfer rates, kET(S1) = 3.9 × 1010 s-1 (77 K) and kET(S1) = 6.0 × 1010 s-1 (298 K), are also considered fast. The interpretation for these results is that the energy transfer processes proceed via a through bond Dexter mechanism (i.e. double electron exchange) supported b
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Watts, Jonathan K., and Masad J. Damha. "2′F-Arabinonucleic acids (2′F-ANA) — History, properties, and new frontiers." Canadian Journal of Chemistry 86, no. 7 (2008): 641–56. http://dx.doi.org/10.1139/v08-049.

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The development of arabinonucleosides and oligoarabinonucleotides is described, focusing especially on 2′-deoxy-2′-fluoroarabinonucleosides (araF-N) and -oligonucleotides (2'F-ANA). In addition to their chemical and enzymatic synthesis, we discuss various properties of 2′F-ANA: hydrolytic stability (to nucleases, acids, and bases), binding affinity to complementary strands, structure and conformation, and optimization of RNase H activity. We also discuss the use of 2′F-ANA in gene-silencing approaches (antisense, siRNA), and in the stabilization of higher-order structures (such as triplexes an
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Dissertations / Theses on the topic "Triplets de frontière"

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Mohsen, Hassan. "Estimations uniformes pour des problèmes de transmission à changement de signe : Liens avec les triplets de frontière et la quantification de l’incertitude." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0227.

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Présentation du domaine: Il s'agit d'étudier des opérateurs différentiels sur des variétés riemanniennes singulières et leurs applications. Parmi les opérateurs les plus importants, on trouve les opérateurs de Laplace et de Dirac. Il y a beaucoup de connexions entre les deux types d'opérateurs, à cause de la formule de Lichnerowicz, un mathématicien français du dernier siècle. Pourtant, les opérateurs de Laplace ont été beaucoup plus étudiés que les opérateurs de Dirac. Les opérateurs de Dirac, aussi appelé opérateurs d'Atiyah--Singer, sont des opérateurs fondamentaux dans la géométrie riemann
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Noël, Emeline. "Simulation numérique directe d’écoulements à l’aide d’une méthode de frontière immergée." Thesis, Rouen, INSA, 2012. http://www.theses.fr/2012ISAM0020/document.

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Les travaux menés, depuis plusieurs années, au CORIA ont abouti à la construction d’un outil numérique (ARCHER) permettant la simulation numérique directe d’écoulements diphasiques et notamment l’atomisation d’un jet liquide à haute vitesse. Ce type de simulation permet de capturer les phénomènes d’atomisation au voisinage de l’injecteur difficilement caractérisables par les outils expérimentaux actuels. Ces simulations requièrent des conditions d’injection délicates à évaluer a priori car elles dépendent des caractéristiques de l’écoulement au sein de l’injecteur. Or, certains jets présentent
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Noël, Emeline. "Simulation numérique directe d'écoulements à l'aide d'une méthode de frontière immergée." Phd thesis, INSA de Rouen, 2012. http://tel.archives-ouvertes.fr/tel-00845203.

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Les travaux menés, depuis plusieurs années, au CORIA ont abouti à la construction d'un outil numérique (ARCHER) permettant la simulation numérique directe d'écoulements diphasiques et notamment l'atomisation d'un jet liquide à haute vitesse. Ce type de simulation permet de capturer les phénomènes d'atomisation au voisinage de l'injecteur difficilement caractérisables par les outils expérimentaux actuels. Ces simulations requièrent des conditions d'injection délicates à évaluer a priori car elles dépendent des caractéristiques de l'écoulement au sein de l'injecteur. Or, certains jets présentent
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Lepilliez, Mathieu. "Simulation numérique des ballotements d'ergols dans les réservoirs de satellites en microgravité et à faible nombre de Bond." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30248/document.

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Cette thèse porte sur l'étude des ballotements dans les réservoirs de satellites à poste, lors des phases de manoeuvre à faible accélération. En effet la bulle de gaz d'hélium servant à pressuriser le réservoir se met en mouvement, générant ainsi des perturbations sur la stabilité globale du satellite. Afin de mener à bien cette étude, des méthodes numériques ont été développées, avec une méthode de frontières immergées pour prendre en compte les parois du réservoir.Le code est utilise la méthode Level-Set pour capturer l'interface, et gère les sauts à l'aide de la méthode Ghost-Fluid. Un solv
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Oliveira, Da Costa Fernando de. "Quelques aspects géométriques et analytiques des domaines bornés symétriques réels." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10072/document.

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Dans cette thèse, nous étudions quelques problèmes géométriques liés aux domaines bornés symétriques réels. Ces espaces sont des espaces D=G/K riemanniens symétriques non compacts, obtenus à partir de domaines bornés hermitiens symétriques. Lorsque le domaine D=G/K est de type Cr ou Dr, G opère transitivement sur chaque composante connexe de l'ensemble [sigma] des tripotents maximaux du système triple de Jordan réel positif T0D. Dans le cas complexe, cet ensemble est connexe et est appelé frontière de Shilov du domaine. Dans le cas réel, [sigma] n'est en général pas connexe. Nous fixons donc u
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Frasson, Margarete. "Alunos brasiguaios em movimento na tríplice fronteira." Universidade Estadual do Oeste do Parana, 2014. http://tede.unioeste.br:8080/tede/handle/tede/40.

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Made available in DSpace on 2017-05-12T14:42:04Z (GMT). No. of bitstreams: 1 Margarete_Frasson.pdf: 8505249 bytes, checksum: a7bbdb940ea1a891017dddf8b79fc533 (MD5) Previous issue date: 2014-05-15<br>In the late twentieth century and in the early twenty-first century, the frontiers gain new meaning for the formation of economic blocs. Relating this phenomenon to education, it is detected that forces exerted by Economic Blocs and the national states act on it. In order to understand the movement of braziguayan students in the Triple Frontier Area (BR, AR and P
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Carneiro, Filho Camilo Pereira. "Processos de transfronteirização na Bacia do Prata : a tríplice fronteira Brasil – Argentina - Paraguai." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/88615.

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Cette recherche est une approche sur les processus transfrontaliers dans la Triple FrontièreBrésil-Argentine-Paraguay. Initialement nous avons cherché à identifier les acteurs et les nouveaux usages du territoire, ainsi que le rôle des régions transfrontalières au sein des blocs commerciaux régionaux en Amérique du Sud et en Europe. Afin de utiliser l'expérience européenne dans les politiques pour les régions frontalières, on a analysés les initiatives d'intégration dans l’Union européenne et un travail de terrain dans la Grande Région a été réalisé, dont les résultats ont été utilisés pour la
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Sika, Glebelho Lazare. "Impact des allocations en ressources sur l'efficacité des écoles primaires en Côte d'Ivoire." Phd thesis, Université de Bourgogne, 2011. http://tel.archives-ouvertes.fr/tel-00620800.

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La qualité de l'enseignement primaire en Côte d'Ivoire s'est fortement dégradée au cours de ces trois dernières décennies. Cette situation est la résultante d'une gestion approximative du système éducatif, qui se caractérise par une insuffisance de support pédagogique, une mauvaise allocation des ressources, un encombrement des salles de classe (42 élèves par enseignants au primaire) et un déficit d'enseignants qualifiés et bien formés. En outre, le conflit militaro-politique de septembre 2002 n'a guère amélioré cet état de choses, bien au contraire, il n'a fait que détériorer davantage la sit
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Kinda, Tidiane. "LES DETERMINANTS, LES CONSEQUENCES ET LA GESTION DES FLUX DE CAPITAUX PRIVES DANS LES PAYS EN DEVELOPPEMENT." Phd thesis, Université d'Auvergne - Clermont-Ferrand I, 2009. http://tel.archives-ouvertes.fr/tel-00426893.

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Cette thèse analyse comment les pays en développement pourraient attirer davantage de capitaux privés, en bénéficier avec une amélioration de leur productivité, tout en évitant les éventuels effets pervers tel que l'appréciation du taux de change réel. La première partie de la thèse analyse les déterminants macroéconomiques des capitaux privés. Les résultats montrent que les infrastructures, et le développement financier favorisent les investissements directs étrangers (IDE) et les investissements de portefeuille (chapitre 2). La politique monétaire expansive réduit à terme les investissements
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Oliveira, Da Costa Fernando de. "Quelques aspects géométriques et analytiques des domaines bornés symétriques réels." Electronic Thesis or Diss., Nancy 1, 2011. http://www.theses.fr/2011NAN10072.

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Dans cette thèse, nous étudions quelques problèmes géométriques liés aux domaines bornés symétriques réels. Ces espaces sont des espaces D=G/K riemanniens symétriques non compacts, obtenus à partir de domaines bornés hermitiens symétriques. Lorsque le domaine D=G/K est de type Cr ou Dr, G opère transitivement sur chaque composante connexe de l'ensemble [sigma] des tripotents maximaux du système triple de Jordan réel positif T0D. Dans le cas complexe, cet ensemble est connexe et est appelé frontière de Shilov du domaine. Dans le cas réel, [sigma] n'est en général pas connexe. Nous fixons donc u
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Books on the topic "Triplets de frontière"

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Crownover, James D. Triple Play. Speaking Volumes, LLC, 2021.

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Triple play. Five Star Publishing, 2016.

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Triple Play. Cengage Gale, 2017.

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Book chapters on the topic "Triplets de frontière"

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Rougirel, Arnaud. "Differential Triplets on Hilbert Spaces." In Frontiers in Mathematics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58356-8_4.

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Rougirel, Arnaud. "Fractional Differential Triplets and Quadruplets on Lebesgue Spaces." In Frontiers in Mathematics. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58356-8_6.

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Marin, Irina. "A Peasant Uprising on the Edge of a Triple Frontier." In Peasant Violence and Antisemitism in Early Twentieth-Century Eastern Europe. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76069-8_1.

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Etzkowitz, Henry. "Innovation Governance: From the “Endless Frontier” to the Triple Helix." In Geographies of the University. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75593-9_8.

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Elmaleh, Omri. "Lebanese-Muslim Diaspora in the Triple Frontier (Argentina, Brazil, and Paraguay)." In Encyclopedia of Latin American Religions. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-08956-0_382-1.

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Elmaleh, Omri. "Lebanese-Muslim Diaspora in the Triple Frontier (Argentina, Brazil, and Paraguay)." In Encyclopedia of Latin American Religions. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-27078-4_382.

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Sapkota, Brahmananda, Edward Kilgarriff, and Christoph Bussler. "Role of Triple Space Computing in Semantic Web Services." In Frontiers of WWW Research and Development - APWeb 2006. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11610113_63.

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Darvish, Vahid, Mojtaba Nouri, and Mehran Razeghi. "On the Additivity of Maps Preserving Triple Jordan Product A ∗B + λB ∗A on ∗-Algebras." In Frontiers in Functional Equations and Analytic Inequalities. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-28950-8_6.

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Mishra, Pratik, and Sumit Vij. "Changing Agriculture and Climate Variability in Peri-Urban Gurugram, India." In Water Security, Conflict and Cooperation in Peri-Urban South Asia. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79035-6_6.

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AbstractFarmers across India are protesting the apathy of the state towards the agricultural sector, which is facing a triple crisis – economic, ecological and existential. This chapter attempts to locate the changing dynamics of agriculture at a frontier where a geographically specific articulation of this crisis comes to the fore: in Budhera, a peri-urban village bordering Gurugram city in the Indian state of Haryana. The village is still largely agrarian but undergoing rapid changes under the influence of (peri-)urbanization. Our ethnographic research investigates the juxtaposition of these
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Webb, Dave, and Lia Rodriguez de La Vega. "Security and Well-Being in the Triple Frontier Area of Latin America: Community Awareness of Child Trafficking, the Smuggling of Persons and Sex Tourism." In Subjective Well-Being and Security. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2278-1_11.

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Conference papers on the topic "Triplets de frontière"

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Mohaghegh, Mahsa, Hassan Kaatuzian, Behzad Namvar, and Mohammad Hosseini. "Design and Simulation of Triple Quantum Well Vertical Cavity Transistor Laser for Technical Characteristics Investigation." In Frontiers in Optics. Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jd4a.39.

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In this work, design and simulation of a triple quantum well vertical cavity transistor laser is investigated. The base and quantum wells width are 120nm and 12nm respectively. The optical power output, DC current gain, and threshold current are investigated in the new structure. The threshold current is estimated on the order of 3.5mA.
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Biaggio, Ivan, and Eric A. Wolf. "Geminate exciton fusion fluorescence as a probe of triplet exciton transport after singlet fission." In Frontiers in Optics. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/fio.2022.jtu4a.28.

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The transport mechanisms leading to spatial separation of triplet pairs after singlet exciton fission can be investigated using the photons emitted if the triplet excitons meet again. Dimensionality of transport can strongly affect fission efficiency.
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Lin, Bo-Yen, Chia-Hsun Chen, Yuan-Zhen Zhuang, et al. "Realization of Ultra-Long Lifetime in Blue Triplet-Triplet Annihilation OLED." In Frontiers in Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/fio.2023.jw4a.63.

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2.95-times improvement in operation lifetime was achieved in blue triplet-triplet annihilation organic light-emitting diode (OLED) together with efficiency enhancement (13.5%) by using novel device architecture which significantly suppressed organic layer degradation and tripletpolaron quenching.
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Wu, Bang, Xu-Jie Wang, Li Liu, et al. "Direct observation of the Mollow triplets from a semiconductor quantum dot micro-pillar cavity with ultra-low background reflectivity." In Frontiers in Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/fio.2023.jtu4a.16.

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We resonantly excite a semiconductor quantum dot micropillar device with a low background cavity reflectivity of just 0.0089, which allows a signal to background ratio of 50 and an overall system responsivity of 3 %. At few-photon excitation levels, we observe the Mollow triplets without resort to any laser background rejection technique.
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Falk, Kevin. "Spectral triples and Toeplitz operators." In Frontiers of Fundamental Physics 14. Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.224.0140.

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Nascimento, Carolina Salgado do, Maria Amparo Ferreira Faustino, and Leonardo De Boni. "Spectroscopic Investigation of Photophysical Properties in Tetraphenylporphyrins with Various Chalcone Derivatives." In Frontiers in Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/fio.2023.jtu4a.80.

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This study explores new tetraphenylporphyrins with diverse chalcone ligands to determine triplet formation quantum yield via double pulse fluorescence technique, which suggested potential for photothermal therapy application due to high internal conversion rates.
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Jennewein, T., H. Hübel, D. Hamel, et al. "Triple photons and triple slits, a new frontier in quantum mechanics tests." In CLEO: Applications and Technology. OSA, 2011. http://dx.doi.org/10.1364/cleo_at.2011.jtuf2.

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Finton, Drew M., and Ivan Biaggio. "Transient Triplet Exciton Gratings in Rubrene Single Crystals." In Frontiers in Optics. OSA, 2020. http://dx.doi.org/10.1364/fio.2020.jm6b.1.

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Birech, Zephania, Markus Schwoerer, Jens Pflaum, and Heinrich Schwoerer. "Davydov splitting in triplet excitons of tetracene single crystals." In Frontiers in Optics. OSA, 2014. http://dx.doi.org/10.1364/fio.2014.ftu1g.8.

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Taherpour, Mahyar, Clint van Hoesel, Reinder Coehoorn, and Peter A. Bobbert. "Accurate and fast master equation modeling of triplet-triplet annihilation in organic phosphorescent emission layers including correlations." In Frontiers in Luminescent Organic Semiconductor Materials and Devices, edited by Andrew P. Monkman, Thomas Penfold, and Eli Zysman-Colman. SPIE, 2023. http://dx.doi.org/10.1117/12.2644929.

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You might also be interested in the extended bibliographies on the topic 'Triplets de frontière' for particular source types:
Journal articles
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