Results 161 to 170 of about 845,032 (365)

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, Yao‐Wei Chin, Shih‐Chun Lin, Yu‐Hsiang Lai, Boo Cheong Khoo   +4 more
wiley   +1 more source

Fire safety practices in the Shuttle and the Space Station Freedom [PDF]

The Shuttle reinforces its policy of fire-preventive measures with onboard smoke detectors and Halon 1301 fire extinguishers. The forthcoming Space Station Freedom will have expanded fire protection with photoelectric smoke detectors, radiation flame ...
Friedman, Robert
core   +1 more source

Programmer's manual for the fire safety evaluation system cost minimizer computer program

, 1983
Robert E. Chapman
openalex   +1 more source

Flight of the Future: An Experimental Analysis of Event‐Based Vision for Online Perception Onboard Flapping‐Wing Robots

Advanced Intelligent Systems, EarlyView.
A thorough analysis of event‐based vision for flapping‐wing robots is presented, with emphasis on hardware integration, suitability under challenging flight conditions, and real‐time performance. Theoretical and experimental studies demonstrate how these sensors enable robust and efficient onboard perception for ornithopters, thereby advancing autonomy
Raul Tapia, Javier Luna‐Santamaria, Ivan Gutierrez Rodriguez, Juan Pablo Rodríguez‐Gómez, José Ramiro Martínez‐de Dios, Anibal Ollero   +5 more
wiley   +1 more source

A new experimental approach to lithium-ion battery fires in electric vehicles: Investigation of fire behavior and effectiveness of extinguishing agents

Case Studies in Thermal Engineering
This study investigates fire incidents in lithium-ion batteries used in electric vehicles and evaluates the effectiveness of extinguishing agents under controlled conditions, highlighting the difficulty of extinguishing such fires due to the materials in
Onur Mammacıoğlu, Gokhan Coskun
doaj  

A novel phosphorus-nitrogen-based hyperbranched polysiloxane for improving the fire safety of PA6 with suppressed melt droplets and good mechanical properties. [PDF]

Heliyon, 2023
Fan S, Zeng J, Yang P, Cheng M.
europepmc   +1 more source

An assessment of correlations between laboratory and full-scale experiments for the FAA aircraft fire safety program, part 6 :

, 1983
William J. Parker
openalex   +1 more source

Stomatal distribution and post‐fire recovery: Intra‐ and interspecific variation in plants of the pyrogenic Florida scrub

American Journal of Botany, EarlyView.
Abstract Premise Amphistomy, the presence of stomata on both leaf surfaces, can increase photosynthesis yet is uncommon across vascular plants. The relative infrequency of amphistomy is often attributed to high costs, such as transpirational water loss.
Genevieve Triplett, Aaron S. David
wiley   +1 more source

NASA technical advances in aircraft occupant safety [PDF]

NASA's aviation safety technology program examines specific safety problems associated with atmospheric hazards, crash-fire survival, control of aircraft on runways, human factors, terminal area operations hazards, and accident factors simulation.
Enders, J. H.
core   +1 more source

An assessment of correlations between laboratory and full-scale experiments for the FAA Aircraft Fire Safety Program, Part I :

, 1982
James G. Quintiere
openalex   +1 more source