Results 11 to 20 of about 309,612 (268)

The Design of a Low-Cost Sensing and Control Architecture for a Search and Rescue Assistant Robot

open access: yesMachines, 2023
At a disaster site, unforeseen circumstances can severely limit the activities of rescue workers. The best solution is for a cooperative team of robots and rescue workers to complete the rescue work.
Tae Ho Kim   +3 more
doaj   +1 more source

On the geometry of Zermelo's optimal control trajectories

open access: yesAUT Journal of Mathematics and Computing, 2022
In the present work, we study the optimal control paths in the Zermelo navigation problem from the geometric and differential equations point of view rather than the optimal control point of view, where the latter has been carried out in our recent work.
Fathi, Zohreh, Bidabad, Behroz
openaire   +3 more sources

Controlling Selectivity by Controlling the Path of Trajectories

open access: yesJournal of the American Chemical Society, 2015
Consideration of the role of dynamic trajectories in [1,2]- and [2,3]-sigmatropic rearrangements suggests a counterintuitive approach to controlling the selectivity. In our hypothesis, [2,3] selectivity can be promoted by reaction conditions that thermodynamically disfavor the [2,3] rearrangement step and thereby make the transition state later.
Biswas, Bibaswan, Singleton, Daniel A.
openaire   +2 more sources

Using PID Controller and SDRE methods for tracking control of Spacecrafts in Closed-Rendezvous Process [PDF]

open access: yesINCAS Bulletin, 2019
Rendezvous process of spacecrafts is one of major issues in study of aerospace engineering. Tracking control in Rendezvous process is very complex due to the need to fulfill the conditions and constraints to determine the control forces to bring Chaser ...
Thien Van NGUYEN   +3 more
doaj   +1 more source

Trajectory Control Technology of Bedding Drilling in Medium Thick Coal Seam

open access: yesMeikuang Anquan, 2020
There are some problems existing in the field application of progressively extended drilling technology such as unclear active exploration distance, high probability of outside the coal seam, exploration inefficiency and so on.
DONG Haichao, ZHAO Yongzhe
doaj   +1 more source

Controlling Phoretic Swimmer Trajectory

open access: yesMRS Proceedings, 2011
ABSTRACTIndividually propulsive catalytic Janus particle swimmers are observed to self-assemble into aggregate swimmers with a wide variety of translational and rotational velocities. The trajectory for a given doublet is shown to be determined by the frozen in relative orientation of the particles.
Ebbens, S   +4 more
openaire   +2 more sources

Coherent Electron Trajectory Control in Graphene [PDF]

open access: yesPhysical Review Letters, 2018
We investigate coherent electron dynamics in graphene, interacting with the electric field waveform of two orthogonally polarized, few-cycle laser pulses. Recently, we demonstrated that linearly polarized driving pulses lead to sub-optical-cycle Landau-Zener quantum path interference by virtue of the combination of intraband motion and interband ...
Christian Heide   +3 more
openaire   +4 more sources

Trajectory Control of a Parallel Slider System by Combining PD Control and Neural Network Control [PDF]

open access: yes한국정밀공학회지, 2018
The parallel slider system can be configured as a parallel robot by combining with other link devices. Therefore, the degree of positioning of the parallel slider would have considerable influence on the smooth operation of the parallel robot.
Jong Gyu Lee   +2 more
doaj   +1 more source

Dynamic Trajectory Control of Gliders [PDF]

open access: yes, 2013
9 figures, Proceedings of the 2nd CEAS Specialist Conference on Guidance, Navigation & Control, Delft ...
Dilão, Rui, Fonseca, João
openaire   +2 more sources

Singular Trajectories of Control-Affine Systems [PDF]

open access: yesSIAM Journal on Control and Optimization, 2008
When applying methods of optimal control to motion planning or stabilization problems, some theoretical or numerical difficulties may arise, due to the presence of specific trajectories, namely, singular minimizing trajectories of the underlying optimal control problem.
Yacine Chitour   +2 more
openaire   +3 more sources

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