Results 11 to 20 of about 13,259 (186)
Hepatology, EarlyView., 2022 IL‐31 levels correlate with pruritus in patients with cholestatic and metabolic liver diseases Abstract Background and Aims Pruritus is associated with multiple liver diseases, particularly those with cholestasis, but the mechanism remains incompletely understood.
Jun Xu +20 more
wiley +1 more source
Improved Particle Swarm Optimization for Laser Cutting Path Planning
IEEE Access, 2023 This research focuses on the long empty cutting path problem during the laser cutting process by employing an improved proximity method to establish the starting point set in complex closed graphics.
Pengju Qu, Feilong Du
doaj +1 more source
IET Networks, EarlyView., 2023 We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh +4 more
wiley +1 more source
Improved sine cosine algorithm for large-scale optimization problems
Shenzhen Daxue xuebao. Ligong ban, 2022 Aiming at the shortcomings of the sine cosine algorithm (SCA) in solving the large-scale optimization problems, such as low accuracy, slow convergence speed, and being easy to fall into the dimension disaster, we propose an sine cosine algorithm with ...
ZHANG Chao, YANG Yi
doaj +1 more source
Multi-Robot Searching Algorithm Using Levy Flight and Artificial Potential Field
8th IEEE International Workshop on Safety, Security, and Rescue Robotics, SSRR-2010, 2010 An efficient search algorithm is very crucial in robotic area, especially for exploration missions, where the target availability is unknown and the condition of the environment is highly unpredictable. In a very large environment, it is not sufficient to scan an area or volume by a single robot, multiple robots should be involved to perform the ...
Sutantyo D.K. +3 more
openaire +2 more sources
An Improved Flow Direction Algorithm for Engineering Optimization Problems
Mathematics, 2023 Flow Direction Algorithm (FDA) has better searching performance than some traditional optimization algorithms. To give the basic Flow Direction Algorithm more effective searching ability and avoid multiple local minima under the searching space, and ...
Yuqi Fan +4 more
doaj +1 more source
Generalized Lévy walks and the role of chemokines in migration of effector CD8+ T cells. [PDF]
, 2012 Chemokines have a central role in regulating processes essential to the immune function of T cells, such as their migration within lymphoid tissues and targeting of pathogens in sites of inflammation.
Banigan, Edward J +11 more
core +2 more sources
Jumping to Conclusion? A Lévy Flight Model of Decision Making [PDF]
Tutorials in Quantitative Methods for Psychology, 2020 The diffusion model is one of the most prominent response time models in cognitive psychology. The model describes evidence accumulation as a stochastic process that runs between two boundaries until a threshold is hit, and a decision is made.
Wieschen, Eva Marie +2 more
doaj +1 more source
Levy Foraging in a Dynamic Environment – Extending the Levy Search
International Journal of Advanced Robotic Systems, 2015 A common task for robots is the patrolling of an unknown area with inadequate information about target locations. Under these circumstances it has been suggested that animal foraging could provide an optimal or at least sub-optimal search methodology ...
Vincenzo Fioriti +3 more
doaj +1 more source
An improved quantum particle swarm photovoltaic multi‐peak mPPT method combined with Lévy flight
Energy Science & Engineering, 2020 Inertial weight adaptive quantum particle swarm optimization (DCWQPSO) algorithm can effectively improve the problem of particle falling into local extreme value.
Lei Chen +3 more
doaj +1 more source