Results 51 to 60 of about 5,002,744 (342)

Improved Immune Moth–Flame Optimization Based on Gene Correction for Automatic Reverse Parking

open access: yesSensors
During the process of reverse parking, it is difficult to achieve the ideal reference trajectory while avoiding collision. In this study, with the aim of establishing reference trajectory optimization for automatic reverse parking that smooths and ...
Gang Liu, Xinli Xu, Longda Wang
doaj   +1 more source

Dynamic analysis with optimum trajectory planning of multiple degree-of-freedom surgical micro-robot

open access: yesAlexandria Engineering Journal, 2018
The present work aims to analyze kinematics and dynamics accompanied with an optimum trajectory planning, of a multiple degree-of-freedom positioning surgical micro-robot.
Khaled Mohamed   +2 more
doaj   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

Multiconstrained Ascent Trajectory Optimization Using an Improved Particle Swarm Optimization Method

open access: yesInternational Journal of Aerospace Engineering, 2021
This paper researches the ascent trajectory optimization problem in view of multiple constraints that effect on the launch vehicle. First, a series of common constraints that effect on the ascent trajectory are formulated for the trajectory optimization ...
Mu Lin   +3 more
doaj   +1 more source

Trajectory optimization using regularized variables. [PDF]

open access: yesAIAA Journal, 1969
Summary: When the trajectory of a space vehicle passes through regions with significantly different gravitational force magnitudes, numerical accuracy requirements often necessitate extreme computer times. In celestial mechanics, regularizing transformations are used to eliminate computational and analytical problems that occur during close approaches ...
Tapley, B. D.   +2 more
openaire   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Research on Wellbore Trajectory Optimization and Drilling Control Based on the TD3 Algorithm

open access: yesApplied Sciences
In modern oil and gas exploration and development, wellbore trajectory optimization and control is the key technology to improve drilling efficiency, reduce costs, and ensure safety.
Haipeng Gu   +3 more
doaj   +1 more source

Fast Trajectory Generation Method for Midcourse Guidance Based on Convex Optimization

open access: yesInternational Journal of Aerospace Engineering, 2022
To generate the midcourse guidance trajectory for intercepting the high-speed and high maneuvering target, which is a strongly nonlinear and strongly constrained problem, a two-stage convex optimization method is proposed to solve the optimal trajectory ...
Jinlin Zhang   +4 more
doaj   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Research on Intelligent Optimization of Wellbore Trajectory in Complex Formation

open access: yesApplied Sciences
Borehole trajectory optimization is a key issue in oil and gas drilling engineering. The traditional wellbore trajectory design method faces great challenges in optimizing the trajectory length and complexity, and it is difficult to meet the actual ...
Haipeng Gu, Tie Yan, Yang Wu
doaj   +1 more source

Home - About - Disclaimer - Privacy