نتایج جستجو برای: wing robot

تعداد نتایج: 124862  

2018
Jessika Santamaria

The data presented in this article relates to the research article, "Evidence of Varroa-mediated Deformed Wing virus spillover in Hawaii" (Santamaria et al., 2017) [3]. The article presents data collected throughout August 2014 to November 2015, on the two Hawaiian Islands of Oahu and Maui. Apis and non-Apis specimens - a total of four species - were collected and tested for Deformed Wing virus...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
Douglas L Altshuler William B Dickson Jason T Vance Stephen P Roberts Michael H Dickinson

Most insects are thought to fly by creating a leading-edge vortex that remains attached to the wing as it translates through a stroke. In the species examined so far, stroke amplitude is large, and most of the aerodynamic force is produced halfway through a stroke when translation velocities are highest. Here we demonstrate that honeybees use an alternative strategy, hovering with relatively lo...

Journal: :amirkabir international journal of electrical & electronics engineering 2015
a. sheikhlar m. zarghami a. fakharian m. b. menhaj

this paper presents a delay compensator fuzzy control for trajectory tracking of omni-directional mobile robots. fuzzy logic control (flc) of the robots is a suitable strategy for dealing with model uncertainties, nonlinearities and disturbances.  on the other hand, in many robotic applications such as mobile robots, delay phenomenon is able to substantially deteriorate the behavior of system's...

Journal: :Proceedings. Biological sciences 2012
Toshiyuki Nakata Hao Liu

Insect wings are deformable structures that change shape passively and dynamically owing to inertial and aerodynamic forces during flight. It is still unclear how the three-dimensional and passive change of wing kinematics owing to inherent wing flexibility contributes to unsteady aerodynamics and energetics in insect flapping flight. Here, we perform a systematic fluid-structure interaction ba...

Journal: :Genetics 2002
J Gadau R E Page J H Werren

There is a 2.5-fold difference in male wing size between two haplodiploid insect species, Nasonia vitripennis and N. giraulti. The haploidy of males facilitated a full genomic screen for quantitative trait loci (QTL) affecting wing size and the detection of epistatic interactions. A QTL analysis of the interspecific wing-size difference revealed QTL with major effects and epistatic interactions...

Journal: :The Journal of experimental biology 2004
James M Birch William B Dickson Michael H Dickinson

The elevated aerodynamic performance of insects has been attributed in part to the generation and maintenance of a stable region of vorticity known as the leading edge vortex (LEV). One explanation for the stability of the LEV is that spiraling axial flow within the vortex core drains energy into the tip vortex, forming a leading-edge spiral vortex analogous to the flow structure generated by d...

Journal: :نظریه تقریب و کاربرد های آن 0
xueguang bia stanley security solutions, inc., shenzhen, guangdong 518108, china yucheng liu department of mechanical engineering, university of louisiana, lafayette, la 70504, usa

this paper presented methods to determine the aerodynamic forces that acton an aircraft wing during flight. these methods are initially proposed for asimplified two degree-of-freedoms airfoil model and then are extensivelyapplied for a multi-degree-of-freedom airfoil system. different airspeedconditions are considered in establishing such methods. the accuracy of thepresented methods is verifie...

Journal: :IEEE robotics and automation letters 2023

This letter is focused on the benchmark evaluation and comparison of flapping fixed wing flight modes an hybrid platform developed for realization autonomous inspection operations outdoors. The combines high range endurance fixed-wing UAVs (unmanned aerial vehicles), with higher maneuverability intrinsic safety in interaction humans during hand launch capture. A unified model derived both confi...

Journal: :I. J. Robotics Res. 2017
Anirudha Majumdar Russ Tedrake

We consider the problem of generating motion plans for a robot that are guaranteed to succeed despite uncertainty in the environment, parametric model uncertainty, and disturbances. Furthermore, we consider scenarios where these plans must be generated in real-time, because constraints such as obstacles in the environment may not be known until they are perceived (with a noisy sensor) at runtim...

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