AIMC Topic: Tail

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Dynamics and design of passive tails for enhanced stability of motion.

Bioinspiration & biomimetics Jun 6, 2025
In this work, we study the nonlinear dynamics of tail motion using numerical simulations and experiments. Our simulations are based on a discrete model comprising rigid cylinders (representing vertebrae) coupled by longitudinal, shear, and bending sp...
Computer Simulation Animals Biomimetics Locomotion Tail Robotics Equipment Design Models, Biological
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Exploring the evolutionary adaptations of the unique seahorse tail's muscle architecture through modelling and robotic prototyping.

Journal of the Royal Society, Interface May 7, 2025
Seahorses possess a unique tail muscle architecture that enables efficient grasping and anchoring onto objects. This prehensile ability is crucial for their survival, as it allows them to resist currents, cling to mates during reproduction and remain...
Smegmamorpha Adaptation, Physiological Biological Evolution Tail Computer Simulation Animals Muscle, Skeletal Robotics Models, Biological
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Jointed tails enhance control of three-dimensional body rotation.

Journal of the Royal Society, Interface Feb 5, 2025
Tails used as inertial appendages induce body rotations of animals and robots-a phenomenon that is governed largely by the ratio of the body and tail moments of inertia. However, vertebrate tails have more degrees of freedom (e.g. number of joints an...
Tail Models, Biological Biomechanical Phenomena Rotation Animals Joints Robotics
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Bird-inspired reflexive morphing enables rudderless flight.

Science robotics Nov 20, 2024
Gliding birds lack a vertical tail, yet they fly stably rudderless in turbulence without needing discrete flaps to steer. In contrast, nearly all airplanes need vertical tails to damp Dutch roll oscillations and to control yaw. The few exceptions tha...
Robotics Equipment Design Aircraft Biomechanical Phenomena Animals Birds Wings, Animal Tail Reflex Biomimetics Biomimetic Materials Flight, Animal Wind
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Modelling human postural stability and muscle activation augmented by a supernumerary robotic tail.

Bioinspiration & biomimetics Sep 23, 2024
Wearable robots have promising characteristics for human augmentation; however, the the design and specification stage needs to consider biomechanical impact. In this work, musculoskeletal software is used to assess the biomechanical implications of ...
Robotics Postural Balance Equipment Design Models, Biological Tail Biomechanical Phenomena Posture Muscle, Skeletal Humans
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A deep learning approach for staging embryonic tissue isolates with small data.

PloS one Jan 8, 2021
Machine learning approaches are becoming increasingly widespread and are now present in most areas of research. Their recent surge can be explained in part due to our ability to generate and store enormous amounts of data with which to train these mo...
Embryo, Nonmammalian Tail Animals Deep Learning Image Processing, Computer-Assisted Microscopy, Confocal Gene Expression Zebrafish
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An attempt at estrus detection in cattle by continuous measurements of ventral tail base surface temperature with supervised machine learning.

The Journal of reproduction and development Oct 9, 2020
We aimed to determine the effectiveness of estrus detection based on continuous measurements of the ventral tail base surface temperature (ST) with supervised machine learning in cattle. ST data were obtained through 51 estrus cycles on 11 female cat...
Female Animals Wearable Electronic Devices Cattle Monitoring, Physiologic Skin Temperature Estrus Detection Models, Biological Tail Supervised Machine Learning Body Temperature
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Technical note: Calving prediction in dairy cattle based on continuous measurements of ventral tail base skin temperature using supervised machine learning.

Journal of dairy science Jul 1, 2020
In this study, we developed a calving prediction model based on continuous measurements of ventral tail base skin temperature (ST) with supervised machine learning and evaluated the predictive ability of the model in 2 dairy farms with distinct cattl...
Tail Supervised Machine Learning Parturition Skin Temperature Animals Cattle Longitudinal Studies Pregnancy Female
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Porcine single nucleotide polymorphisms and their functional effect: an update.

BMC research notes Dec 4, 2018
OBJECTIVE: To aid in the development of a comprehensive list of functional variants in the swine genome, single nucleotide polymorphisms (SNP) were identified from whole genome sequence of 240 pigs. Interim data from 72 animals in this study was publ...
Semen High-Throughput Nucleotide Sequencing Untranslated Regions Gene Ontology Animals Genome-Wide Association Study Molecular Sequence Annotation Genome Male Polymorphism, Single Nucleotide Tail Swine DNA
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Collective responses of a large mackerel school depend on the size and speed of a robotic fish but not on tail motion.

Bioinspiration & biomimetics Oct 6, 2016
So far, actuated fish models have been used to study animal interactions in small-scale controlled experiments. This study, conducted in a semi-controlled setting, investigates robot interactions with a large wild-caught marine fish school (∼3000 ind...
Movement Perciformes Animals Tail Biomimetic Materials Taxis Response Robotics Locomotion
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