Results 121 to 130 of about 1,178,972 (334)
Active Metamaterials with Tunable Shear Nonreciprocity and Nonlinear Dynamics
Advanced Science, EarlyView.Active gear‐based mechanical metamaterials enable simultaneous control of translational and torsional stiffnesses by 30–100×, break shear reciprocity under positive versus negative loads, broadly tune resonant frequencies, and offer programmable dynamic responses.
Xin Fang, Miao Yu, Dianlong Yu, Li Cheng
wiley +1 more source
A study of noise metric and tone correction accuracy [PDF]
Methods currently used to measure human response to aircraft flyover noise were investigated. Response to high level aircraft noise usually experienced outdoors was obtained.
Mabry, J. E., Sullivan, B. M.
core +1 more source
Advanced Electronic Materials, EarlyView.This study introduces an in situ electrostatic charge‐assisted wetting method to enhance the interfacial strength of aerosol jet printing. By depositing negative charges on the substrate, the technique improves ink wetting and interfacial properties, achieving up to 85.6% higher interfacial shear strength.
Ao Li +5 more
wiley +1 more source
The Feasibility Study for CAT Ⅱ ILS Flight Test with Type Ⅰ ILS
Hangkong gongcheng jinzhan, 2019 Airports with Type Ⅱ ILS is the precondition of CAT Ⅱ ILS flight test. Since domestic airports with Category Ⅱ operation condition are all large hub airports, many restrictions will greatly affect the efficiency of flight test.
Zhang Yuanyuan, Bai Weiguo
doaj +1 more source
The 'tumble' departure mode in weightshift-controlled [PDF]
, 2003 The cost of private or recreational flying is high for most conventional aircraft types. During the last 25 years, however, an alternative has become available in the form of the microlight aircraft.
Gratton, GB, Newman, SJ
core
Advanced Energy Materials, EarlyView.This study employs digital advanced manufacturing to develop lightweight, compact porous distributors as alternatives to conventional bipolar plates in PEM fuel cells. A graphene‐coated nickel foam achieves a power density of 1.52 W cm−2, while titanium‐based designs deliver lightweight solutions: an LPBF‐fabricated Gyroid lattice reaches 1.36 W cm−2 ...
Hadi Heidary +9 more
wiley +1 more source
Visually guided control of movement in the context of multimodal stimulation [PDF]
Flight simulation has been almost exclusively concerned with simulating the motions of the aircraft. Physically distinct subsystems are often combined to simulate the varieties of aircraft motion.
Riccio, Gary E.
core +1 more source
AIChE Journal, EarlyView.Abstract Recovery of rare earth elements (REEs) from end‐of‐life (EOL) products represents a strategic opportunity to strengthen the domestic supply chain for rare earth elements. This work presents a superstructure‐based optimization framework for finding the most economical processing pathway for different EOL rare earth permanent magnets (REPMs ...
Chris Laliwala +6 more
wiley +1 more source
Implications of control technology on aircraft design [PDF]
, 1984 New controls technologies are now available for implementation with aircraft systems. Many aircraft with state of the art technology in the fields of aerodynamics, structures, and propulsion require extensive augmentation merely for safety of flight ...
Arbuckle, P. D., Sliwak, S. M.
core +1 more source
A trust‐region funnel algorithm for gray‐box optimization
AIChE Journal, EarlyView.Abstract Gray‐box optimization, where parts of optimization problems are represented by algebraic models while others are treated as black‐box models lacking analytic derivatives, remains a challenge. Trust‐region (TR) methods provide a robust framework for gray‐box problems through local reduced models (RMs) for black‐box components, but they are ...
Gul Hameed +4 more
wiley +1 more source