327,103 research outputs found
URBAN FLOWS SIMULATOR BASED ON COMPLEX SYSTEM OF QUEUES: PROCEDURES FOR SIMULATOR GENERATION
No full textIn a previous work [Pasini L and Feliziani S 2013 TASK Quart. 17 (3) 155], we have defined an object library that allows the building of architectural models of urban traffic systems. In this work we illustrate the procedures that enable us to produce a system simulator starting from the architectural model of an urban vehicular traffic system
Post-urban Sites in Japan and Mexico: Their Appearance and Their Colors
No full textThis book is a joint publication of Chiba University / Universidad de Monterrey that collects the results of the QOL section (Quality of Life in overcrowded cities) of the PULI multi-university program (Post Urban Living Innovation Education and Research Program) funded by the Japanese government. The QOL-PULI tackles the overcrowded condition of large congested conurbations that challenges a consolidated metropolitan lifestyle all over the world and casts residents into a post-urban condition. Large social strata also deal with insufficient provision of essential services such as housing and transportation and intolerable living circumstances. The program pursues the creation of agreeable, social, and safe urban environments by working on tangible and intangible components. This book presents the 2015-18 project work progress, with on-site case analyses performed on six locations in Japan and Mexico by the joint QOL team of Chiba University and the Universidad de Monterrey under the direction of Higashi, Pasini, and Suzuki. The graphic documentation presented consists in maps, plans of urban areas, photo-surveys and line-drawings of street-fronts and façades, attempting to capture the intangible qualities of the relics of urban systems in the megacity of Tokyo or in the small towns of urbanized regions of Mexico. The texts by Higashi, Pasini, and Suzuki accompany the unfolding graphic apparatus plotting a critical correspondence between superficial appearance and functioning structure of the urban environments for the six sites in Mexico and in Japan
Pubblica Amministrazione, Servizi Pubblici e Welfare
No full textOrigine, evoluzione e trasformazione della Pubblica Amministrazione, dei serivizi pubblici nazionali e locali e del sistema di sicurezza sociale in Italia dall'Unità d'Italia ad oggi. Analisi storico politologica. Modelli e categorie interpretative a confronto
Post-Urban Relics in Global Megacity [Relictos post-urbanos en la Megaciudad global]
No full textThe text discusses the role of architecture, and the prospects of its very survival, in a present time when it has been put in question by the disciplinary engagement with the new human condition in the age of geographic expansion of the human settlement and the shifting focus onto many derivative or traditionally ancillary disciplines
VEHICULAR TRAFFIC SIMULATIONS: USE OF A GAMES ENGINE FOR VIDEO RENDERING AND VERIFICATION OF AN ARCHITECTURE MODEL BASED ON QUEUING SYSTEMS
No full textIn a previous work [Pasini L and Sabatini S 2016 TASK Quart. 20 (1) 9], we described a technique that allows a specific system of urban traffic to be associated to a description file system, called Model.dat. This file contains a list of data objects that are defined in the library [Pasini L and Feliziani S 2013 TASK Quart. 17 (3) 155] and that form the architecture model of a vehicular traffic system. This model turns out to be a network of queuing systems. In this work, we illustrate how we adapted the old procedure to study a new urban traffic system. Moreover, through a new tracking procedure, we illustrate how we developed a graphic simulation able to reinterpret the data from the simulation of the queuing networks model, in order to make it easier to check the effectiveness of the simulator and to have a graphical way to analyze the data
Post-Urban Relics in Global Megacity
No full textThe chapter is part of a joint publication of Chiba University / Universidad de Monterrey that collects the results of the QOL section (Quality of Life in overcrowded cities) of the PULI multi-university program (Post Urban Living Innovation Education and Research Program) funded by the Japanese government. The QOL-PULI tackles the overcrowded condition of large congested conurbations that challenges a consolidated metropolitan lifestyle all over the world and casts the residents into a post-urban condition with insufficient provision of essential services such as housing and transportation, delivering large social strata into intolerable living circumstances. The chapter discusses the present role and prospects of architecture as a means to construct the system of urban space and consequent urban landscapes. The chapter elaborates on the marginality of the very notion of 'the urban' and the residuality of its surviving relics in an age characterized by the geographic expansion of the human settlement and the consequent novel human condition. Such post-urban condition is also explored through the shifting focus of the architecture and urban design discourse onto the fields of conventionally ancillary or even distinct disciplines, such as landscape architecture or landscape ecology. In sites where the vertical stratification of the locus has been encapsulated by implacable metropolitan artificiality or disconnected from a pristine site by erasing processes of diffusive degradation, the chapter raises questions about the possibility for the interpretative excavation of urban relics that exceeds the archeological dimension
Fimoscolex bartzi Bartz, James, Pasini & Brown, 2012, n. sp.
No full textFimoscolex bartzi n. sp. Bartz & James (Fig. 4 g,h,i, Table 1) Holotype. COFM BRPR 0129 one adult, pasture converted into annual crop (wheat), São José Farm, Londrina, Paraná, Brazil: 23 º 24.872 ’S, 51 º 18.847 ’W, 666 masl, 30 September 2009, M.L.C. Bartz and A.Pasini colls. Paratype. COFM BRPR 0132 one adult, soybean field under 35 years no-till, Rhenânia Farm, Rolândia, Paraná, Brazil; 23 ° 23.075 ’S, 51 ° 21.477 ’W, 675 masl, 19 June 2008, M.L.C. Bartz and A. Pasini colls. Other material. COFM BRPR 0324 four adults, pasture converted into annual crop (wheat), São José Farm, Londrina, Paraná, Brazil: 23 º 24.872 ’S, 51 º 18.847 ’W, 666 masl, 30 September 2009, M.L.C. Bartz and A. Pasini colls. COFM BRPR 0130 one adult and two juveniles, pasture, São José Farm, Londrina, Paraná, Brazil: 23 º 24.872 ’S, 51 º 18.847 ’W, 666 masl, 30 September 2008, M.L.C. Bartz and A. Pasini colls.; COFM BRPRP 0131 one adult, black oats field under 35 years no-till, Rhenânia Farm, Rolândia, Paraná, Brazil; 23 ° 23.075 ’ S, 51 ° 21.477 ’W, 675 masl, 19 March 2008, M.L.C. Bartz and A. Pasini colls.; COFM BRPR 0325 one adult, soybean field under 35 years no-till, Rhenânia Farm, Rolândia, Paraná, Brazil; 23 ° 23.075 ’S, 51 ° 21.477 ’W, 675 masl, 19 June 2008, M.L.C. Bartz and A. Pasini colls. Etymology. The species is named in honor of the farmer Herbert Arnold Bartz, considered the pioneer of the no-till system in Latin America and manager of the Rhenânia Farm from 1965 to 2007. Description. Dimensions: Holotype 39 mm by 1.7 mm at x, 1.5 mm at clitellum, 1.6 mm at xl, 119 segments; paratype 37 mm by 1.2 mm at x, 1.0 mm at clitellum, 1.1 mm at xl, 166 segments. Body cylindrical. Setae ab and cd commence on iv, setae very tiny and hardly visible. Setae closely paired throughout; genital setae absent; setal formula AA:AB:BC:CD:DD = 20: 1: 4: 1: 30 at x and 28: 1: 6: 1: 32 at xxx. Prostomium prolobous. Unpigmented. Ovipores on very small papillae in a, in xiv; single male pore on xvii as an oval conical protuberance occupying 2 / 3 xvi– 1 / 3 xviii. Clitellum saddle, xv–xxi (Fig. 4 g). Segments after clitellum with post-setal second or third annulations. Nephropores just above b. Septa 6 / 7 and 10 / 11 thin muscular, 7 / 8–9 / 10 equally thick muscular, 11 / 12 membranous, around heart and testes sacs, septa 12 / 13 / 14 united by circumesophageal membrane isolating villous interior from other septal contents of xiii, which are medial to membrane. Alimentary canal with large cylindrical gizzard in vi, esophagus with wide angle lamellae chevron pattern vii–ix, esophagus valvular in xiv, intestinal origin xv; typhlosole origin xvi, end xci, cxxi, simple lamella in open folds xvi–xxiv, thicker lamella xv–xxvii, after xxviii gradually becoming simple and straight. Calciferous glands paired in xii, composite-tubular type, bean shaped, sessile on dorsal esophageal wall; blood vessels to gland include large branch of dorsal vessel to approximate center of each gland, two coalescing vessels from ventral gland margin to extra-esophageal vessel. Gland opening to esophagus near dorsum. Holonephric, vesiculate; ducts to body wall near level of b. Vascular system with ventral trunk, single dorsal trunk, lateral vessels in vii–ix, latero-esophageal hearts in x–xi. Extra-esophageal vessel visible near pharyngeal glands, passes along ventral-lateral face of gizzard and esophagus, ending in calciferous glands; supraesophageal vessel in x–xi. Ovaries in xiii; modified funnels, C shaped in xiv and a flat sac in 1 / 3 xii – 2 / 3 xv, under ventral nerve cord (Fig. 4 i); spermathecae absent. Male sexual system metandric, testes and funnels in sac with enclosed hearts; seminal vesicles start on the back side of the testes sacs in xi, penetrate septa and range posteriorly along intestine to xiv–xv as simple elongate sacs with parallel blood vessels on median side of longitudinal axis of vesicle; vasa deferentia long, looped from xi, on body wall in line of ab to the ventro-lateral face of the large single oval copulatory bulb (intersegmental line xvi/xvii); bulb extends over 2 / 3 xvi– 1 / 3 xviii but occupies septally-defined space of xvii. Copulatory bulb with thin muscular outer layer, dense, delicate glandular inner surface with small lumen leading to male pore at approximate center of bulb connection to body wall; lumen undulating in three dimensions; no transverse muscle bands crossing over bulb; bulb attached by muscles to body wall. Remarks. Fimoscolex bartzi is part of the genus Fimoscolex defined by Michaelsen (1900) as glossoscolecid worms having a single male pore and a single copulatory bulb. There are 7 species presently known in this group (James & Brown, 2010). Fimoscolex bartzi is most similar to Fimoscolex angai minor Zicsi & Csuzdi, 1987, with the differences between F. bartzi and F. angai minor as follows, the characteristics of the latter in parentheses: length 35–57 mm (77 mm), number of segments 119–188 (189–201), setae beginning between ii and iv (setae beginning in segment iv), setal ratios 28: 1: 6: 1: 32 (ab=cd, aa = 3 bc), testes in sac in xi extending to 13 (ventral single testes sac, cone form), ovaries associated to flat sac (ovaries normal), last heart pair enclosed (free).Published as part of Bartz, Marie Luise Carolina, James, Samuel Wooster, Pasini, Amarildo & Brown, George Gardner, 2012, New earthworm species of Glossoscolex Leuckart, 1835 and Fimoscolex Michaelsen, 1900 (Clitellata: Glossoscolecidae) from Northern Paraná, Brazil, pp. 59-85 in Zootaxa 3458 on pages 78-79, DOI: 10.5281/zenodo.28222
Generalized towers of flag-transitive circular extensions of non-classical C3-geometries
No full textThe classification of generalized towers of flag-transitive circular extensions of the sporadic A7-geometry is completed by characterizing two flat geometries on 16 points, constructed in terms of the Steiner system S(24, 8, 5), as the flag-transitive circular extensions of the duals of the sporadic A7-geometry and the Neumaier geometry for A8, and then by showing the non-existence of flag-transitive circular extensions of these geometries. © 1994
Modular impulsive green monopropellant propulsion system (Mimps-g): For cubesats in leo and to the moon
No full textGreen propellants are currently considered as enabling technology that is revolutionizing the development of high-performance space propulsion, especially for small-sized spacecraft. Modern space missions, either in LEO or interplanetary, require relatively high-thrust and impulsive capabilities to provide better control on the spacecraft, and to overcome the growing challenges, particularly related to overcrowded LEOs, and to modern space application orbital maneuver requirements. Green monopropellants are gaining momentum in the design and development of small and modular liquid propulsion systems, especially for CubeSats, due to their favorable thermophysical properties and relatively high performance when compared to gaseous propellants, and perhaps simpler management when compared to bipropellants. Accordingly, a novel high-thrust modular impulsive green monopropellant propulsion system with a micro electric pump feed cycle is proposed. MIMPS-G500mN is designed to be capable of delivering 0.5 N thrust and offers theoretical total impulse ITot from 850 to 1350 N s per 1U and >3000 N s per 2U depending on the burnt monopropellant, which makes it a candidate for various LEO satellites as well as future Moon missions. Green monopropellant ASCENT (formerly AF-M315E), as well as HAN and ADN-based alternatives (i.e., HNP225 and LMP-103S) were proposed in the preliminary design and system analysis. The article will present state-of-the-art green monopropellants in the (EIL) Energetic Ionic Liquid class and a trade-off study for proposed propellants. System analysis and design of MIMPS-G500mN will be discussed in detail, and the article will conclude with a market survey on small satellites green monopropellant propulsion systems and commercial off-the-shelf thrusters.</p
On a new family of flag-transitive semibiplanes
No full textEach of the d-dimensional dual hyperovals S(m)(h) discovered by Yoshiara [20] gives rise, via affine expansion, to a flag-transitive semibiplane Af (S(m)(h)). We prove that, if m + h = d + 1, then Af (S(m)(h)) is an elation semibiplane. In the other cases, if d > 2 then Af (S(m)(h)) is not isomorphic to any of the examples we are aware of, except possibly for certain semibiplanes obtained from D(n)-buildings defined over G F(2). However, many semibiplanes live hidden as quotients inside halved hypercubes. It is thus quite natural to ask whether any of our semibiplanes are like that. We prove that Af (S(m)(h)) is a quotient of a halved hypercube if and only if h = m. (C) 2001 Academic Press
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