Results 21 to 30 of about 338,682 (292)
Automated multigravity assist trajectory planning with a modified ant colony algorithm [PDF]
, 2010 The paper presents an approach to transcribe a multigravity assist trajectory design problem into an integrated planning and scheduling problem. A modified Ant Colony Optimization (ACO) algorithm is then used to generate optimal plans corresponding to ...
Battin R. H. +10 more
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Aerospace, 2022 Based on the lift-to-drag ratio of a two-dimensional trajectory correction projectile, in this paper, a novel correction efficiency coefficient model has been proposed for the trajectory optimization of a two-dimensional trajectory correction projectile,
Dejian Zhang +4 more
doaj +1 more source
Approximate optimal atmospheric entry trajectories [PDF]
Guidance, Control and Flight Mechanics Conference, 1971 For a reentry glider, approximate solutions are found in closed form for the problem of maximizing a function of the terminal velocity, altitude, flight-path angle and heading angle subject to, at most, three terminal nonlinear constraints. The results given here extend the previous results in two important ways: (1) the second-order approximation of ...
JASON L. SPEYER, M. EDWARD WOMBLE
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ActuatorsThis paper addresses the cruise range maximization problem for hypersonic drones by proposing a combined aerodynamic force/thrust vector trajectory optimization method.
Zijun Zhang +4 more
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Trajectory Planning of Energy Consumption Optimal Redundant Manipulators with Constraints
Jixie chuandong, 2022 Aiming at the problem of how to reduce the complexity of trajectory optimization of redundant or super-redundant manipulators， a constrained energy consumption optimal manipulator trajectory planning method is proposed.
Yuanfei Zhou, Haitao Tang
doaj
Joints Trajectory Planning of Robot Based on Slime Mould Whale Optimization Algorithm
Algorithms, 2022 The joints running trajectory of a robot directly affects it’s working efficiency, stationarity and working quality. To solve the problems of slow convergence speed and weak global search ability in the current commonly used joint trajectory optimization
Xinning Li +6 more
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Hybrid behavioural-based multi-objective space trajectory optimization [PDF]
, 2009 In this chapter we present a hybridization of a stochastic based search approach for multi-objective optimization with a deterministic domain decomposition of the solution space.
Vasile, Massimiliano
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Optimal Trajectories for Hypervelocity Flight [PDF]
1989 American Control Conference, 1989 This paper discusses optimal trajectories for hypervelocity flight of interest in aeroassisted orbital transfer. Both coplanar orbital transfer and noncoplanar orbital transfer are studied. For these cases, the GEO- to-LEO transfer, the HEO-to-LEO transfer, and the LEO-to-LEO transfer are considered in connection with a spacecraft which is controlled ...
Miele, A., Lee, W. Y.
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Computational aspects of multilevel trajectory optimization [PDF]
, 2017 This paper presents new computational results in multilevel trajectory optimization. The original formulation of trajectory decomposition is extended and applied to a difficult multiple arc trajectory example, the low thrust interplanetary swingby ...
Stubberud, Allen, Sugar, RD
core
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source