86,673 research outputs found
Towards the Integration of Power-Indexed Formulations in Multi-Architecture Connected Facility Location Problems for the Optimal Design of Hybrid Fiber-Wireless Access Networks
No full textUrban access networks are the external part of worldwide networks that make telecommunication services accessible to end users and represent a critical part of the infrastructures of modern cities. An important recent trend in urban access networks is the integration of fiber and wireless networks, leading to so-called fiber-wireless (Fi-Wi) networks. Fi-Wi networks get the best of both technologies, namely the high capacity offered by optical fiber networks and the mobility and ubiquity offered by wireless networks. The optimal design of fiber and wireless networks has been separately extensively studied. However, there is still a lack of mathematical models and algorithms for the integrated design problem. In this work, we propose a new Power-Indexed optimization model for the 3-architecture Connected Facility Location Problem arising in the design of urban telecommunication access networks. The new model includes additional power-indexed variables and constraints to represent the signal-to-interference formulas expressing wireless signal coverage. To solve the problem, which can prove very hard even for a state-of-the art optimization solver, we propose a new heuristic that combines a probabilistic variable fixing procedure, guided by (tight) linear relaxations, with an MIP heuristic, corresponding to an exact very large neighborhood search. Computational experiments on realistic instances show that our heuristic can find solutions of much higher quality than a state-of-the-art solver
An (MI)LP-Based Primal Heuristic for 3-Architecture Connected Facility Location in Urban Access Network Design
No full textDas Konzept des Selbstbestimmungsrechts der Völker: eine Arbeit unter besonderer Berücksichtigung der Auflösung der Sowjetunion und des Zerfalls Jugoslawiens
No full textMett F. Das Konzept des Selbstbestimmungsrechts der Völker: eine Arbeit unter besonderer Berücksichtigung der Auflösung der Sowjetunion und des Zerfalls Jugoslawiens. Europäische Hochschulschriften: Reihe 2, Rechtswissenschaft ; 3822. Frankfurt am Main: Lang; 2004
Integrating LP-guided variable fixing with MIP heuristics in the robust design of hybrid wired-wireless FTTx access networks
No full textNephrolepis abrupta Mett.
No full text1. Nephrolepis abrupta (Bory)Mett. - Map 1 Nephrolepis abrupta (Bory)Mett.(1856) 99; J. Sm. (1875) 227. - Dicksonia abrupta Bory (1804) 187, pl. 30. -Leptopleuria abrupta (Bory) C. Presl(1836) 137, pl. 5, f. 9-11.- Type: Anon. s.n., s.d. (K, L, P), Réunion. Habit, rhizome morphology. Runners 1-2 mm thick, branching angle divaricate. Scales on runners dense, spreading or squarrose. Tubers absent. Fronds to 200 cm long (or much longer), 15-19 cm wide, stipe 30-35 cm long. Lamina base strongly reduced, tapering over 20-60 cm, basal pinnae 1-1.2 cm long, 2.5-6 cm distant, middle pinnae slightly to strongly falcate (mostly the cauda only is falcate). Sterile pinnae 3-13 by 0.8-2.8 cm (usually distinctly triangular, narrowed gradually from base to apex), leathery, base strongly unequal, basiscopic base cordate (strongly, sometimes somewhat auriculate), acroscopic base cuneate, truncate, rounded or cordate (always less distinctly cordate than the basiscopic base), not or slightly auricled (usually distinctly dilated, but not auricled), margin in basal part finely crenate, towards apex crenate, apex rounded, obtuse or acute. Fertile pinnae 3.2-14 by 0.7-1.8 cm, differing from sterile pinnae in the margin being incised between sori but not beyond the attachment. Indument. Basal scales pseudopeltate, spreading, 5.5 by 1 mm, central part rufous, shining (translucent), hyaline margin absent, marginal glands absent, margin in basal part fmbriate, acumen fmbriate, transition to rachis scales abrupt or basal scales persisting to high up. Rachis scales sparse or dense, with a well-developed protracted ciliate acumen, appressed or spreading, light brown or rufous. Scales on lamina absent. Hairs on lamina absent or present, short, dense. Sori marginal, 14-34 pairs on fully fertile pinnae, elongated, not impressed. Indusium broad, attached at broad base. Distribution - Indian Ocean: Madagascar, Comores, Réunion; Malesia: Malay Peninsula, Borneo. Habitat & Ecology - Lowlands to 800 m, often in pioneer vegetation on recent lava flows, also in degraded forest, in the eastern part of the range usually terrestrial, on limestone, sometimes epiphytic. Note - Nephrolepis abrupta is somewhat similar to N. dicksonioides and has been confused with that species, from which it differs in more triangular pinnae, gradually narrowed from the base towards the apex, the fertile pinnae not incised beyond the sori, so that the sori are protruding from the margin, not on distinct teeth, indusium not reaching margin, innervated by 1, rarely 2 veins, rachis scales more strongly lacerated. The pinnae often appear to stand in a plane at right angles to the rachis. They are usually glabrous, but may be densely short-hairy all over the lamina, with hairy and glabrous fronds sometimes occurring on the same plant. Plants from the eastern part of the range are often larger than those from the western part, which are, especially those from the Comores, often compact and densely scaly in the lower part of the lamina. The more compact habit of these plants is not preserved in cultivation.Published as part of Hovenkamp PH & Miyamoto F, 2005, A conspectus of the native and naturalized species of Nephrolepis (Nephrolepidaceae) in the world, pp. 279-322 in Blumea 50 on pages 288-28
Asplenium planicaule Mett.
No full textAsplenium planicaule Wall. ex Mett. = Asplenium yoshinagae (Makino) subsp. indicum (Sledge) Fraser-Jenk. Lectotype (designated by Morton 1973):— NEPAL. 1820, Numerical List (Catalogue) No. 189-1, Wallich s.n., isotypes BM001045235!, K001109500!, K001044577!, NY 214847!, UC 267862!. INDIA. Srinugur [Srinagar], 1820, Numerical List (Catalogue) No. 189- 2, W. Moorcroft s.n., isotypes K001109501!, NY 214848!; Nilgiris, Flora of Madras, 6000 ft [1828 m], May 1886, Gamble 17334 (US01515892!). CHINA. Yunnan, Yangbi Xian, W side of Diancang Shan mountain range. En route from Xueshanhe to Dapingzi, growing on crevices of a ledge, 25º 43’N, 100º 02’E, 2300-3000 m, 17 June 1984, Sino-American Botanical Expedition to Yunnan Province 242 (US3043222!); Yunnan Red River forest across from Maubao Mongtze, W. Hancock 187 (K001092464!). COUNTRY UNKNOWN. Himalayas, J. F. Royle s.n . (PH 00025140!); Note: Morton (1973) designated Wallich No. 189 (B) as the lectotype of A. planicaule. The present author was not able to locate this specimen. There are doubtful isotypes at BM, K, LE, PH and S: BM001045200!, BM001045235!, BM000523633!, BM000523634!, BM000523635!, K001044578!, LE00008417!, PH 00004925!, S-P-1376! (S), UC 267862!.Published as part of Salgado, Arthur Edward, 2021, Taxonomic and nomenclatural notes on Philippine ferns. IV. Asplenium pahli (Polypodiales, Aspleniineae, Aspleniaceae), a new species from Leyte, Philippines, pp. 71-84 in Phytotaxa 524 (2) on page 81, DOI: 10.11646/phytotaxa.524.2.1, http://zenodo.org/record/564203
Nephrolepis rivularis Mett. ex Krug 1897
No full text18. Nephrolepis rivularis (Vahl) Mett. ex Krug - Map 6 Nephrolepis rivularis (Vahl) Mett. ex Krug(1897) 122; Proctor (1989) 263; Nauman (1992) 288; Mickel & A.R. Sm. (2004) 408. - Polypodium rivulare Vahl (1807) 51. - Type: Ryan s.n. (C), Montserrat. Aspidium sesquipedale Willd. (1810) 230. - Aspidium hoffmanseggi(Willd.)Poir.(1817) 509 (nom. illeg.). - Nephrodium hoffmanseggi Desv. (1827) (nom. illeg.). - Nephrolepis sesquipedalis(Willd.)C. Presl(1836) 79. - Lepidonevron sesquipedale (Willd.) Fée (1869) 148. - Type: Hoffmansegg s.n. (Willdenow herb19755, B), Brasil. Aspidium eminens Wikstr. (1826) 434. - Type: Forsström s.n. (S-PA), Guadeloupe. Nephrolepis neglecta Kunze(1839a) 149. - Type: Schiede s.n. (LZ, destroyed, iso NY?),teste Mickel & A.R. Sm. (2004). Nephrolepis valida Kunze(1848b) 229. - Type: Kegel 1379 (GOET n.v.), Surinam.Nephrolepis intermedia Sodiro (1893) 57 (nom. illeg. non Fée, 1857, see under N. undulata). - Type: Sodiro s.n. (K, US), Ecuador. Habit, rhizome morphology. Plants epiphytic, epilithic or terrestrial, forming tufts of 3 or 4 fronds. Runners 0.2-0.9 mm thick, branching angle narrow. Scales on runners sparse or dense, spreading or squarrose. Tubers absent. Fronds 39-165 by 5-13 cm, stipe 6-45 cm long. Lamina base reduced, tapering over 20-30 cm, basal pinnae 0.7-2.6 cm long, 2.5-3 cm distant, middle pinnae distinctly falcate. Sterile pinnae herbaceous, base strongly unequal, basiscopic base cuneate, acroscopic base truncate, distinctly auricled, margin in basal part entire or crenate, towards apex more deeply dentate, apex obtuse or acute. Fertile pinnae 2.8-6.7 by 0.5-1.1 cm, otherwise similar to sterile ones. Indument. Basal scales peltate, spreading or squarrose, 2-6.5 by 0.4-1 mm, central part rufous or dark brown, shining, hyaline margin narrow, usually very distinct even when narrow, or absent, margin in basal part irregularly lacerate or dentate, in acumen dentate or ciliate, marginal glands absent. Rachis scales dense or very dense, rufous or dark, with a well-developed protracted, spreading or squarrose, entire, very narrow, filiform acumen. Scales on lamina sometimes present. Hairs on lamina sometimes present, on costae absent. Sori submarginal or medial, 11-20 pairs on fully fertile pinnae, round, slightly impressed. Indusium reniform, with narrow sinus, attached at sinus. Distribution - Throughout the Neotropics, from Cuba and Southern Mexico south to Bolivia, east to the Lesser Antilles and Brazil. Habitat & Ecology - Commonly terrestrial or epiphytic, in forested, often moist habitats, at low to middle elevations, sea level to 2200 m. Note - A distinct species, with submedial indusia that are firm, dark, and round with a very narrow sinus, sometimes appearing peltate (and occasionally reported as such). Rachis often with a peculiar, ʻscabrousʼ look, caused by the persistent scales, with spreading to squarrose appendages (not only the long filiform acumen, but also the appendages on the lacerate base are well-developed and erecto-patent).Published as part of Hovenkamp PH & Miyamoto F, 2005, A conspectus of the native and naturalized species of Nephrolepis (Nephrolepidaceae) in the world, pp. 279-322 in Blumea 50 on pages 309-31
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
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