Search Results - "Prats, Xavier"

Linear Holding for Airspace Flow Programs: A Case Study on Delay Absorption and Recovery by Xu, Yan, Prats, Xavier

“…This paper presents a method to introduce linear holding to flights affected by the airspace flow program (AFP) initiatives. Trajectories are optimized at…”
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Operating cost based cruise speed reduction for ground delay programs: Effect of scope length by Delgado, Luis, Prats, Xavier

“…•Linear holding with speed reduction without incurring extra fuel consumption for ground delay programs.•The scope of the ground delay programs can be…”
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Cruise speed reduction for ground delay programs: A case study for San Francisco International Airport arrivals by Delgado, Luis, Prats, Xavier, Sridhar, Banavar

“…•We suggest splitting assigned GDP delays between ground and airborne delay.•Airborne delay is achieved by reducing cruise speed without extra fuel…”
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Estimating fuel consumption from radar tracks: a validation exercise using FDR and radar tracks from descent trajectories by Dalmau, Ramon, Prats, Xavier, Ramonjoan, Alex, Soley, Santiago

“…Fuel consumption is one of the major considerations for both the impact of aviation in the environment and the cost of operations. This paper assesses the…”
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Fuel and time savings by flying continuous cruise climbs: Estimating the benefit pools for maximum range operations by Dalmau, Ramon, Prats, Xavier

“…This paper estimates the benefits, in terms of fuel and time, which continuous climb operations can save during the cruise phase of the flights, assuming…”
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Sensitivity-Based Non-Linear Model Predictive Control for Aircraft Descent Operations Subject to Time Constraints by Dalmau, Ramon, Prats, Xavier, Baxley, Brian

“…The ability to meet a controlled time of arrival while also flying a continuous descent operation will enable environmentally friendly and fuel efficient…”
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Effects of linear holding for reducing additional flight delays without extra fuel consumption by Xu, Yan, Prats, Xavier

“…This paper presents an approach to implement linear holding (LH) for flights initially subject to ground holding, in the context of Trajectory Based…”
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Sensitivity Analysis of Maximum Circulation of Wake Vortex Encountered by En-Route Aircraft by Rojas, Jose I., Melgosa, Marc, Prats, Xavier

“…Wake vortex encounters (WVE) can pose significant hazard for en-route aircraft. We studied the sensitivity of wake vortex (WV) circulation and decay to…”
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Controlled time of arrival windows for already initiated energy-neutral continuous descent operations by Dalmau, Ramon, Prats, Xavier

“…•Energy-neutral descents already initiated when updating the Controlled Time of Arrival (CTA).•Feasible time window achieved by only managing the energy with…”
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Vaccines, trust and European public health by Ammon, Andrea, Prats Monné, Xavier

“…Vaccines have made a major contribution to the prevention and control of communicable diseases. They are considered as one of the successes in medicine and a…”
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What Is Learning For? The Promise of a Better Future by Prats Monne, Xavier

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Allostatic Load Is Linked to Cortical Thickness Changes Depending on Body-Weight Status by Ottino-González, Jonatan, Jurado, María A, García-García, Isabel, Segura, Bàrbara, Marqués-Iturria, Idoia, Sender-Palacios, María J, Tor, Encarnació, Prats-Soteras, Xavier, Caldú, Xavier, Junqué, Carme, Garolera, Maite

“…Overweight (body mass index or BMI ≥ 25 kg/m ) and stress interact with each other in complex ways. Overweight promotes chronic low-inflammation states, while…”
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Towards high performance robotic computing by Camargo-Forero, Leonardo, Royo, Pablo, Prats, Xavier

“…Embedding a robot with a companion computer is becoming a common practice nowadays. Such computer is installed with an operatingsystem, often a Linux…”
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Maximizing airborne delay at no extra fuel cost by means of linear holding by Xu, Yan, Dalmau, Ramon, Prats, Xavier

“…•Linear holding strategy is justified to be feasible for the whole flight phases.•Trajectory optimization techniques are implemented to obtain the maximum air…”
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Assessing the impact of relaxing cruise operations with a reduction of the minimum rate of climb and/or step climb heights by Dalmau, Ramon, Prats, Xavier

“…A compromise solution to increase flight efficiency in cruise, but without penalising capacity (or even safety), would be perhaps to remove (or relax) the…”
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The ARCHADE: Ubiquitous Supercomputing for robotics. Part I: Philosophy by Camargo-Forero, Leonardo, Royo, Pablo, Prats, Xavier

“…In this work, we introduce Ubiquitous Supercomputing for robotics with the objective of opening our imagination to the development of new powerful…”
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Operating cost sensitivity to required time of arrival commands to ensure separation in optimal aircraft 4D trajectories by Vilardaga, Santi, Prats, Xavier

“…•Sensitivity study of fuel and time consumption to imposed time advisories at fixes.•Case study of conflicting Airbus A320 departing two major airports in…”
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Effect of Wind on Operating-Cost-Based Cruise Speed Reduction for Delay Absorption by Delgado, L., Prats, X.

“…En route speed reduction can be used for air traffic flow management (ATFM), e.g., delaying aircraft while airborne or realizing metering at an arrival fix. In…”
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Multi-objective optimisation for aircraft departure trajectories minimising noise annoyance by Prats, Xavier, Puig, Vicenç, Quevedo, Joseba, Nejjari, Fatiha

“…This paper presents a strategy for designing noise abatement procedures aimed at reducing the global annoyance perceived by the population living around the…”
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An environmental assessment of air traffic speed constraints in the departure phase of flight: A case study at Gothenburg Landvetter Airport, Sweden by Mitchell, Deborah, Ekstrand, Henrik, Prats, Xavier, Grönstedt, Tomas

“…► The environmental effects of air traffic departure speed constraints are evaluated. ► A real departure route at Gothenburg Landvetter Airport is used as a…”
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