Results 141 to 150 of about 217,272 (213)
A time-based concept for terminal-area traffic management [PDF]
An automated air-traffic-management concept that has the potential for significantly increasing the efficiency of traffic flows in high-density terminal areas is discussed.
Erzberger, H., Tobias, L.
core +1 more source
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani+2 more
wiley +1 more source
Piloted simulation of a ground-based time-control concept for air traffic control [PDF]
A concept for aiding air traffic controllers in efficiently spacing traffic and meeting scheduled arrival times at a metering fix was developed and tested in a real time simulation. The automation aid, referred to as the ground based 4-D descent advisor (
Davis, Thomas J., Green, Steven M.
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Strain Engineering of Twisted Bilayer Graphene: The Rise of Strain‐Twistronics
This review summarizes the recent advances in the strain engineering of twisted 2D materials, in particular twisted bilayer graphene, toward effectively modifying their Moiré superlattices and tuning electronic structures upon mechanical straining.
Yuan Hou+6 more
wiley +1 more source
Theoretical Model of the Island Effect in Flexible Electronics under Equal Biaxial Stretching
A mechanical model of the island effect under equal biaxial stretching is established through theoretical analysis, simulation, and experimental validation. The scaling law for displacement and strain distributions reveals that the ratio of island radius to substrate length is the key governing parameter.
Zifei Ma+5 more
wiley +1 more source
The study investigates microstructural evolution during high‐temperature partitioning in medium‐carbon, high‐silicon aluminum‐aided steels, exploring phase transformations affecting the final microstructure. Quenching and partitioning processes, with varying primary martensite fractions, reveal significant austenite stabilization at 350 °C, but ...
Mattia Franceschi+5 more
wiley +1 more source
Baseline Assumptions and Future Research Areas for Urban Air Mobility Vehicles [PDF]
NASA is developing Urban Air Mobility (UAM) concepts to (1) create first-generation reference vehicles that can be used for technology, system, and market studies, and (2) hypothesize second-generation UAM aircraft to determine high-payoff technology ...
Antcliff, Kevin+3 more
core +1 more source
The Phase Separation Control in All‐Polymer Solar Cells
The domain size of all‐polymer solar cells is critical to device performance. Our review introduces the strategies and principles for regulating domain sizes, encompassing factors such as crystallinity, miscibility, and molecular conformation from a thermodynamic perspective, as well as the film‐forming kinetics and the crystallization sequence from a ...
Qiuju Liang+11 more
wiley +1 more source
Aeroassisted-vehicle design studies for a manned Mars mission [PDF]
An aerobrake design that has matured over several years of development accounting for all of the important flow phenomenology which are characteristic of aerobraking vehicles is proposed as the mission baseline.
Menees, Gene P.
core +1 more source