58 research outputs found
Pudeoniscus Vandel 1963
No full textPudeoniscus Vandel, 1963 Pudeoniscus Vandel, 1963: 64; Lemos de Castro 1973: 3; Souza-Kury 1998: 665; Leistikow and Wägele 1999: 43; Schmalfuss 2003: 226; Schmidt 2003: 79; Schmidt and Leistikow 2004: 78; Magrini et al. 2010: 218; Lisboa et al. 2013: 396; Campos-Filho et al. 2017b: 70. Type species. Pudeoniscus birabeni Vandel, 1963 by original designation and monotypy. Diagnosis Cephalon as in family diagnosis; pereonite 1 epimera with dorsolateral furrow to fit antennae during conglobation, without schisma; dorsal cuticle with verruca-like scales, and dorsolateral furrow scaled; pereonites 1 – 3 with small ventral lobes; dorsal surface with long or fan-shaped scale-setae, sometimes giving hairy appearance; mandibles with molar penicil dichotomized; maxillula of 4 + 4 or 4 + 6 teeth, inner set cleft; maxilla bilobate; maxilliped endite without penicil, distal outer margin bearing one or two hooklike setae; dactylus with two claws, inner claw not surpassing outer claw, ungual seta simple not surpassing outer claw, dactylar seta surpassing outer claw; uropod as in family diagnosis; pleopod exopods with uncovered respiratory areas of Atracheodillo - type (see Figures 1 (d), 4(d – h), 5(a, b)). Remarks Lemos de Castro (1973) defined Pudeoniscus by having the dorsal surface covered with well developed scale-setae, pereonites 1 – 3 with ventral lobes, pereonite 1 without schisma, and neopleurae 3 – 5 distally narrow. As mentioned by the author, the genus differs from Brasiloniscus in the absence of schisma on pereonite 1 epimera and the reduced frontal shield. However, only the former character could be confirmed in the examination of Brasiloniscus material. The respiratory structures on pleopod exopods were never recognized by previous authors (Vandel 1963; Lemos de Castro 1973; Schmidt 2003). However, after the examination of the material used in this study, the presence of respiratory areas in all representatives of Pudeoniscidae is very clear (see Figures 1 (d), 4(d – h), 5(a, b)).Published as part of Campos-Filho, Ivanklin Soares, Teixeira Lisboa, Jonathas & Monticelli Cardoso, Giovanna, 2018, A new genus and two new species of Pudeoniscidae Lemos de Castro 1973 (Crustacea: Isopoda: Oniscidea) from Brazil, pp. 457-482 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 52 (7 - 8) on page 461, DOI: 10.1080/00222933.2018.1437229, http://zenodo.org/record/517844
STRATEGI PENETAPAN HARGA MELALUI PERHITUNGAN BIAYA PRODUKSI PADA UMKM VANDEL RYAN
No full textCost accounting is an important element that must be calculated carefully when making a product. The cost of production is the most important part of the production calculation process, because it contains cost information needed during production. One method that can be used to calculate production costs is the variable costing method which includes direct raw material costs, direct labor costs, and variable factory overhead costs. UMKM Vandel Ryan is a business that operates in the woodworking sector and the author wants to know ho to calculate production costs using the variable costing method
Nesticus baeticus sp. n., a new troglobitic spider species from south-west Europe (Araneae, Nesticidae)
No full textA new troglobitic species, Nesticus baeticus sp. n. (♂♀), inhabiting the karst landscapes of the high part of the Cazorla, Segura and Las Villas Natural Park (NE Jaén, Spain) where it has been found in 8 caves is diagnosed and described, its distribution and habitat are also analyzed.The new species belongs to the Iberian species group that includes Nesticus luquei, Nesticus lusitanicus and Nesticus murgis. Evolutionary relationships of the Iberian Nesticus species are discussed on the basis of morphological and molecular data (cox1 and rrnL). Arachnida, Araneae, taxonomy, description, new species, caves, Iberian Peninsula, Mediterranean basi
Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis
No full text[EN] Laser ignition was investigated in the swirled, confined CORIA Rouen Spray Burner under ultra-lean conditions
(=0.61) with n-heptane as the liquid fuel. Ignition probability was calculated for different spark locations and
compared to the non-ignited local flow properties. Mean velocity components of the carrier flow were measured by
PDA under spray presence and without spray, and are compared to mean values from PIV. PIV measurements
provide information on the instantaneous airflow and the total strain rate. Fuel droplet size-velocity data was
measured by PDA. Toluene-PLIF images were acquired to provide information on the local equivalence ratio and
the flammability factor. Results show that the outer recirculation zone (ORZ) has a flammability factor close to 1
and the highest ignition probability (~80%). These results have a high correlation with the air velocity field and
turbulent kinetic energy. Instantaneous equivalence ratio images and shear rate-velocity fields give important
information on local segregation of the flow properties that help to understand the ignition process. The present
work provides a useful database for numerical simulations and industry, plus new insight on spray ignition.The authors acknowledge financial support from ANR under the project TIMBER ANR-14-CE23-0009.Marrero Santiago, J.; Verdier, A.; Vandel, A.; Godard, G.; Cabot, G.; Renou, B. (2017). Spray ignition and local flow properties in a swirled confined spray-jet burner: experimental analysis. En Ilass Europe. 28th european conference on Liquid Atomization and Spray Systems. Editorial Universitat Politècnica de València. 847-854. https://doi.org/10.4995/ILASS2017.2017.4674OCS84785
Measurement of laminar burning velocity and Markstein length relative to fresh gases using a new postprocessing procedure: Application to laminar spherical flames for methane, ethanol and isooctane/air mixtures
No full textInternational audienc
Effect of hydrogen addition on combustion duration and initial flame velocity in a spark ignition engine combustion fuelled with CH4/H2
No full textInternational audienc
Los isópodos terrestres de Galicia, España (Crustacea: Isopoda, Oniscidea)
No full textThe revision of the Isopoda collections belonging to the Museo Nacional de Ciencias Naturales de Madrid (MNCN) and to the author, allowed the study of 431 specimens ascribed to 19 species of the terrestrial iso-pods from Galicia, Spain. One species is cited for the first time from Pontevedra and Galicia, Tylos europaeus Arcangeli, 1938, and Porcellio herminiensis (Vandel, 1946) is cited for the first time from the province of A Coruña. The known terrestrial isopodological fauna of Galicia is formed by 38 species, 28 of them are found in the province of Pontevedra, 24 species in A Coruña, 15 species in Orense and 14 species in Lugo.La revisión de la colección de Isopoda del Museo Nacional de Ciencias Naturales de Madrid (MNCN) y la del autor, ha permitido estudiar 431 ejemplares de 19 especies de isópodos terrestres de Galicia, España. Una especie se cita por la primera vez para Pontevedra y Galicia, Tylos europaeus Arcangeli, 1938, y Porcellio herminiensis (Vandel, 1946) se cita por primera vez para la provincia de A Coruña. La fauna conocida de isópodos terrestres de Galicia está formada por 38 especies, 28 de ellas se encuentran en la provincia de Pontevedra, 24 especies en A Coruña, 15 especies en Orense y 14 especies en Lugo
CORIA Aeronautical Combustion Facilities and Associated Optical Diagnostics
No full textInternational audienceThe scientific activities presented in this article are within the field of the design of new concepts of combustion chambers and the exploration of their benefits to increase the combustion and environmental efficiencies of advanced air-breathing propulsion systems. These scientific activities are performed in the "Complexe de Recherche Interprofessionnel en Aérothermochimie" (CORIA) research laboratory, a joint research institute organized between the CNRS, the University of Rouen and the INSA-Rouen Engineering School. CORIA contributes through its recognized expertise in numerical simulation, optical diagnostic measurements and experiments in large-scale combustors to improving the understanding of multi-scale multi-physics physical mechanisms governing the lean combustion of future combustion chambers. In this context, the " Centre de Combustion Avancée pour l'Aéronautique du Futur " (C-CAAF) recently created at CORIA is aimed at providing:• An instrumentation and optical diagnostic platform gathering various laser/opti-cal diagnostic techniques (PIV, LDV for the characterization of the aerodynamic field, PDPA, GRT for the characterization of the distribution of fuel droplets, CARS for measuring the thermal field and main species concentration, OH-PLIF and Schlieren for analyzing the flame structure, LII, NO-PLIF, CO-PLIF for measuring pollutants in the flame, etc.). These laser/optical diagnostic techniques are used to provide unique laboratory tools to perform time-resolved, simultaneous, multidimensional measurements of scalar parameters governing turbulent and multi-phase combustion. Furthermore, these diagnostic tools can be combined to obtain detailed correlations on these scalar parameters.• Multiple setups , from academic burners to complex combustors operating at high pressures. Through the perfect control of their operating conditions, academic burners are designed to assist in the development and validation of innovative optical diagnostic tools. They also provide a precise determination of the relevant chemical and physical parameters, enabling conclusions to be drawn about the underlying partly-coupled combustion processes. Technical combustion chambers are developed to provide a high-fidelity experimental database, in order to improve the innovative architectures of ultra-low NOx aeronautical injectors operating with real multi-component liquid fuels (kerosene, alternative fuels, biofuels, etc.), to identify the interaction mechanisms between several fuel injection systems and to validate the predictive capability of gas turbine combustion models
Laminar burning velocity and Markstein length relative to fresh gases determination applied on ethanol air flames
No full textInternational audienc
Simultaneous Measurements of Flame Front Location and Wall Temperature during Flame-Wall Interaction
No full textInternational audienceWall temperature and flame front location in the near-wall region of a V-shape turbulent methane/air flame are si- multaneously measured with ratiometric phosphor thermometry (PT) and planar laser induced fluorescence on the hydroxyl radical (OH-PLIF). After a presentation of the near-wall combustion test bench and the optical diagnostics, preliminary results of the impact of the bulk wall temperature on the flame topology are presented, where a slight flame thickening can be noticed when the bulk wall temperature increases
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