Results 161 to 170 of about 433,280 (361)
Spring and Power in Hovering Ornithopters
Advanced Intelligent Systems, EarlyView.Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau +4 more
wiley +1 more source
Balloon-borne gamma-ray polarimetry [PDF]
arXiv, 2011 The physical processes postulated to explain the high-energy emission mechanisms of compact astrophysical sources often yield polarised soft gamma rays (X-rays). PoGOLite is a balloon-borne polarimeter operating in the 25-80 keV energy band. The polarisation of incident photons is reconstructed using Compton scattering and photoelectric absorption in ...
arxiv
Inflation system for balloon type satellites Patent [PDF]
, 1966 Inflation system for balloon type ...
Chapman, R. M. +2 more
core +1 more source
OBSERVATIONS ON THE SEPARATION OF PAIRS OF NEUTRAL BALLOONS AND APPLICATIONS TO ATMOSPHERIC DIFFUSION THEORY [PDF]
, 1958 Eugene M. Wilkins
openalex +1 more source
Multistable Physical Neural Networks
Advanced Intelligent Systems, EarlyView.This article presents the integration of mechanical bistability into physical neural networks (PNNs), enabling memory retention and bridging computation with physical action. By mapping the equilibrium states of bistable, liquid‐filled chambers, it explores stability and introduces global and local training algorithms.
Ben‐Haim Eran +3 more
wiley +1 more source
Spherical balloon response to three-dimensional time-dependent flows [PDF]
The concept of the Lagrangian displacement of a balloon is introduced. It is shown that the general balloon response problem is extremely complicated because the wind-forcing functions in the balloon equations of motion are functions of the wind velocity
Fichtl, G. H.
core +1 more source
Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions
Advanced Intelligent Systems, EarlyView.Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley +1 more source
ChemCatChem, Volume 15, Issue 1, January 9, 2023., 2023 The mediator portfolio of electrosynthesis holds untapped potential for photocatalytic applications. A systematic approach toward harnessing electrochemical mediators for photocatalysis is presented using the phenanthroimidazole framework, a known electrocatalytic system, as a test case.
Patrick Enders +4 more
wiley +1 more source
Earth and Space ScienceThe relatively unconstrained internal structure of Venus is a missing piece in our understanding of the formation and evolution of the Solar System. Detection of seismic waves generated by venusquakes is crucial to determine the seismic structure of ...
Raphael F. Garcia +17 more
doaj +1 more source
The Observation of Solar Granulation from A Manned Balloon: I. OBSERVATIONAL DATA AND MEASUREMENT OF CONTRAST [PDF]
, 1959 D. E. Blackwell +2 more
openalex +1 more source