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31.
32.
Nello Angelucci Nicola Bianco Oronzio Manca 《International Journal of Heat and Mass Transfer》1997,40(18):1439-4491
33.
R.D. DuBois O.G. de Lucio J. Gavin 《Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms》2008,266(3):397-401
An overview of methods being used at the University of Missouri-Rolla to measure differential ionisation for positron impact is presented. Examples of triply differential electron emission and doubly differential positron scattering and energy loss data are given and contributions to each due to binary and recoil events are discussed. In addition, angular distribution data for electron emission due to double and triple ionisation are presented. 相似文献
34.
Ivor M. do Prado Willyan M. Giufrida Víctor H. Alvarez Vladimir F. Cabral Sócrates Quispe-Condori Marleny D. A. Saldaña Lucio Cardozo-Filho 《Journal of the American Oil Chemists' Society》2011,88(8):1263-1269
New data on phase equilibria for Sacha inchi seed oil in carbon dioxide have been measured using a variable volume cell phase
equilibria system at temperatures of 303, 313 and 323 K and at pressures ranging from 4.3 to 27.7 MPa. The CO2 mole fraction varied from 0.7488 to 0.9997. At the studied concentrations, phase transitions of vapor-liquid, liquid-liquid-vapor
and liquid-liquid were observed. Sacha inchi oil contains 47% of omega-3 fatty acids, with a ratio of 0.76:1 for omega-6:omega-3,
which is good for human health. The Peng-Robinson equation of state was used to describe the experimental data. A qualitative
agreement was obtained between experimental and calculated data for the binary system CO2 and Sacha inchi seed oil. 相似文献
35.
36.
Giuseppe Bianco Patrizio Mariani Andre W. Visser Maria Grazia Mazzocchi Simone Pigolotti 《Journal of the Royal Society Interface》2014,11(96)
Movement is a fundamental behaviour of organisms that not only brings about beneficial encounters with resources and mates, but also at the same time exposes the organism to dangerous encounters with predators. The movement patterns adopted by organisms should reflect a balance between these contrasting processes. This trade-off can be hypothesized as being evident in the behaviour of plankton, which inhabit a dilute three-dimensional environment with few refuges or orienting landmarks. We present an analysis of the swimming path geometries based on a volumetric Monte Carlo sampling approach, which is particularly adept at revealing such trade-offs by measuring the self-overlap of the trajectories. Application of this method to experimentally measured trajectories reveals that swimming patterns in copepods are shaped to efficiently explore volumes at small scales, while achieving a large overlap at larger scales. Regularities in the observed trajectories make the transition between these two regimes always sharper than in randomized trajectories or as predicted by random walk theory. Thus, real trajectories present a stronger separation between exploration for food and exposure to predators. The specific scale and features of this transition depend on species, gender and local environmental conditions, pointing at adaptation to state and stage-dependent evolutionary trade-offs. 相似文献
37.
Packet-mode scheduling in input-queued cell-based switches 总被引:1,自引:0,他引:1
Ajmone Marsan M. Bianco A. Giaccone P. Leonardi E. Neri F. 《Networking, IEEE/ACM Transactions on》2002,10(5):666-678
We consider input-queued switch architectures dealing at their interfaces with variable-size packets, but internally operating on fixed-size cells. Packets are segmented into cells at input ports, transferred through the switching fabric, and reassembled at output ports. Cell transfers are controlled by a scheduling algorithm, which operates in packet-mode: all cells belonging to the same packet are transferred from inputs to outputs without interruption. We prove that input-queued switches using packet-mode scheduling can achieve 100% throughput, and we show by simulation that, depending on the packet size distribution, packet-mode scheduling may provide advantages over cell-mode scheduling. 相似文献
38.
Stefano Bianco Mario Enorini Franco L. Fabbri Adriano Zallo Pier G. Rancoita 《Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment》1985,235(2):240-243
A multilayer solid state device which is both an active target and tracking detector is proposed for an electronic experiment investigating the so-called anomalons and studying their production mechanism, interaction cross-section and lifetime. The experimental method is based on triggering the reinteractions in two targets of heavy fragments, originated in a production target by a relativistic ion beam. This method greatly increases the sensitivity to the anomalon's effect when compared to other proposed electronic experiments. Solid state devices seem to provide a resolving technique for the study of these short-lived states among high-multiplicity final systems. 相似文献
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In this paper a digital filter is proposed for the generation of smooth set points for motion control systems. The proposed nonlinear filter produces profiles with bounded velocity and acceleration starting from rough reference signals (steps and ramps). An actual implementation of the filter for a tile printing machine is presented and experimental results are reported. 相似文献