Results 121 to 130 of about 48,789 (331)
Analytical and scale model research aimed at improved hangglider design [PDF]
, 1979 Research consisted of a theoretical analysis which attempts to predict aerodynamic characteristics using lifting surface theory and finite-element structural analysis as well as an experimental investigation using 1/5 scale elastically similar models in ...
Chang, L. S., Kroo, I.
core +1 more source
Development and experiments of the Sea-Wing underwater glider
Oceans, 2017 Underwater gliders, which glide through water columns by use of a pair of wings, are efficient long-distance, long-duration marine environment observatory platforms.
Jian-cheng Yu +5 more
semanticscholar +1 more source
Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics
Advanced Science, EarlyView.The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet +8 more
wiley +1 more source
Frontiers in Marine ScienceOcean gliders equipped with acoustic telemetry receivers offer a promising approach for studying the movement of marine fishes, yet most surveys to date have been brief and rarely include direct comparisons with traditional stationary tracking methods ...
Eric Reyier +6 more
doaj +1 more source
New technologies in general aviation [PDF]
, 2010 This research explored the technological needs of GA pilots at international levels. Overall, single pilot operators tend to value costs as the most important feature of any technology, followed by technology that helps with pre-flight tasks as well as
Diaz Vilela, Luis +2 more
core
Local information transfer as a spatiotemporal filter for complex systems
, 2008 We present a measure of local information transfer, derived from an existing averaged information-theoretical measure, namely transfer entropy. Local transfer entropy is used to produce profiles of the information transfer into each spatiotemporal point ...
A. S. Klyubin +15 more
core +1 more source
Mapping Fish Chorus Distributions in Southern California Using an Autonomous Wave Glider
Frontiers in Marine Science, 2019 Passive acoustics is a tool to monitor behavior, distributions, and biomass of marine invertebrates, fish, and mammals. Typically, fixed passive acoustic monitoring platforms are deployed, using a priori knowledge of the location of the target vocal ...
Camille Pagniello, M. Cimino, E. Terrill
semanticscholar +1 more source
Advanced Science, EarlyView.A medium‐entropy strategy guided by ionic potential is applied to weaken TM─O bonds and suppress Jahn–Teller distortion in P2‐type cathodes, thereby enhancing the oxygen redox activity and structure stability. A medium‐entropy oxide, Na0.8Li0.1Ni0.1Cu0.1Ti0.1Mn0.6O2, demonstrates a high reversible capacity of 223.7 mAh g−1 and an energy density of 616 ...
Dongxiao Wang +9 more
wiley +1 more source
Programmable Multifunctional Bistable Structures for Energy Transfer and Dissipation
Advanced Science, EarlyView.Utilizing the energy conversion characteristics of asymmetric bistable beams, this study develops a programmable multifunctional system composed of multiple bistable beams for energy transfer and dissipation. The high energy density enables the system to demonstrate potential in transient scenarios such as target delivery and shock absorption ...
Xin Na +6 more
wiley +1 more source
Neural Network Identification-Based Model Predictive Heading Control for Wave Gliders
Journal of Marine Science and EngineeringThis paper deals with the neural network identification-based model predictive heading control problem in a wave glider. First, based on a kinematic model of the wave glider subjected to external disturbance and system uncertainty, a state space model of
Peng Jin, Baolin Zhang, Yun Zhang
doaj +1 more source