Results 41 to 50 of about 3,499,518 (292)
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
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 ...
Vasile, Massimiliano, Ceriotti, Matteo
core +3 more sources
Design and experiment of spoon shaped clamping chrysanthemum seedling transplanting mechanism
Frontiers in Plant ScienceThis work aims at solving the problems of susceptibility of chrysanthemum seedlings with multiple fibrous roots to damage, poor adaptability of traditional clamping type transplanting machines, and unstable transplanting uprightness.
Qian Wu +5 more
doaj +1 more source
A Computer-Assisted Preoperative Path Planning Method for the Parallel Orthopedic Robot
Machines, 2022 Background: Trajectory planning is the premise of the control of orthopedic robots, which is directly related to the safety of the human body. However, to date, the trajectory of orthopedic robots has been restricted to lines and spline curves.
Jian Li +4 more
doaj +1 more source
FEBS Letters, EarlyView.Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise +5 more
wiley +1 more source
InsectsThe common cutworm, Spodoptera litura (F.), feeds on a wide variety of food and cash crops and is one of the most widespread and destructive agricultural pests worldwide.
Yifei Song +4 more
doaj +1 more source
Bucket Trajectory Optimization under the Automatic Scooping of LHD
Energies, 2019 We propose an optimal planning scheme of the bucket trajectory in the LHD (Load-Haul-Dump) automatic shoveling system to improve the effectiveness of the scooping operation. The research involves simulation of four typical shoveling methods, optimization
Yu Meng +4 more
doaj +1 more source
Trajectory tracking method based on the circulation of feasible path planning.
PLoS ONE, 2021 The control method is the central point of the unmanned vehicles. As the core system to guarantee the properties of self-decision and trajectory tracking of the unmanned vehicles, a new kind of trajectory tracking method based on the circulation of ...
Yi Yu, Peng Han
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Online Trajectory Planning Method for Midcourse Guidance Phase Based on Deep Reinforcement Learning
Aerospace, 2023 Concerned with the problem of interceptor midcourse guidance trajectory online planning satisfying multiple constraints, an online midcourse guidance trajectory planning method based on deep reinforcement learning (DRL) is proposed.
Wanli Li +4 more
doaj +1 more source
The ubiquitin system in normal and infected germinal center B cells
FEBS Letters, EarlyView.The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis +2 more
wiley +1 more source