Results 111 to 120 of about 58,521 (295)
The effect of delta 3 on a yawing HAWT blade and on yaw dynamics [PDF]
, 1982 A single degree of freedom aeroelastic computer model, WMSTAB3, was employed to perform a parametric analysis of HAWT blade behavior during yaw maneuvers. Over 1,000 different combinations of delta sub 3 and normal frequency were analyzed.
Jones, R., Perkins, F. W.
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Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Ultrahigh‐field MRI requires careful management of the specific absorption rate (SAR), which is subject and subject‐position dependent. Within‐scan subject motion may exacerbate local SAR exposure, necessitating large safety margins to prevent SAR underestimation, which hampers imaging performance.
Katherine Anna Blanter +4 more
wiley +1 more source
Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
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Major Reference Works, Page 290-301., 2021 International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.
Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
John P. Sutter C. Chantler +2 more
wiley +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT This work presents a non‐geometrical navigation approach based on a purely topological understanding of underground environments. By conceptualizing subterranean scenarios as a set of tunnels that intersect with each other, and taking a navigation approach based on topological instructions, we simplify the navigation problem to the sequential ...
Lorenzo Cano +2 more
wiley +1 more source
Algorithm for yaw stabilization of a towed vessel
Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologiesTowing is one of the most difficult and risky tasks of navigation, since in this case two or more vessels are involved simultaneously. A minimal number of towing-related accidents have been recorded, but they still occur, and the issue remains of improving the safety of such operations.
Mihail Iosifovich Yakubovich +3 more
openaire +1 more source
Mimic Grasping: A Modular and Flexible Programming‐by‐Demonstration Robotic Grasping Solution
Journal of Field Robotics, EarlyView.ABSTRACT The Industry 5.0 concept guides the industry to the premise of sustainability, resilience and human‐centric solutions. The last related pillar tries to create solutions to empower the people in production line processes since solutions should be designed to be easy to use and easy to learn without discarding the working people. In this regard,
João P. C. de Souza +3 more
wiley +1 more source
The direct yaw-moment control based on adaptive fuzzy LQR for distributed drive electric vehicles
Advances in Mechanical EngineeringThis paper introduced a hierarchical control strategy for direct yaw moment (DYC) to enhance the handling and stability of distributed drive electric vehicles (DDEVs) at medium to high speeds. The upper controller entailed a speed-following PI controller
Baohua Wang +3 more
doaj +1 more source
Meitan xuebaoDue to the use of lumbar folding steering for heavy-duty articulated vehicles in coal mines, the lateral stiffness is weak and the disturbance factors are complex, making it more difficult to operate and easily causing safety problems.
Zhiyong REN +4 more
doaj +1 more source
Virtual Elastic Tether: A New Approach for Multi‐Agent Navigation in Confined Aquatic Environments
Journal of Field Robotics, EarlyView.ABSTRACT Underwater navigation is a challenging area in the field of mobile robotics due to inherent constraints in self‐localization and communication in underwater environments. Some of these challenges can be mitigated by using collaborative multi‐agent teams.
Kanzhong Yao +5 more
wiley +1 more source