Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Responses to Gravity and Touch02:26

Responses to Gravity and Touch

41.7K
Gravitropism: Plant Responses to Gravity
41.7K
Center of Gravity00:58

Center of Gravity

6.6K
The center of gravity (COG) of an object is the point where the object's total weight is considered to be concentrated. Knowing the location of the center of gravity is useful when predicting the behavior of a moving object or designing static structures. In a uniform gravitational field, the center of gravity is similar to the center of mass (COM); yet, these two points can be positioned differently. For example, the Moon's center of mass lies very close to its geometric center, but...
6.6K
Center of Gravity01:15

Center of Gravity

2.1K
The center of gravity is the point at which an object's weight appears to be concentrated and can be used to balance the object perfectly. This point is essential in mechanics as it provides information regarding a body's stability and moments of inertia. The center of gravity does not always have to fall within the shape or boundaries of the body; it may also lie outside the body in certain cases.
To determine its location, the principle of moments can be utilized by dividing the object into...
2.1K
Acceleration due to Gravity on Other Planets01:24

Acceleration due to Gravity on Other Planets

4.9K
The gravitational acceleration of an object near the Earth's surface is called the acceleration due to gravity. It can be measured by conducting simple experiments on Earth. However, such an experiment is impossible to conduct on the surface of other planets.
Astronomical observations are thus used to measure the acceleration due to gravity on other planets. This can be determined by observing the effect of a planet's gravity on objects close to it. The crucial factor that helps in this...
4.9K
Work Done by Gravity01:04

Work Done by Gravity

8.5K
Gravitation is one of the four fundamental forces in nature. The force between objects on Earth and Earth itself is called gravity.
Like other forces, gravity does work on an object if it displaces it toward the Earth's center. In this case, the work done by gravity is said to be positive. If an external force acts on the object against the pull of gravity and manages to lift it away from the Earth's center, work is done against gravity. In this case, the net work done is said to be...
8.5K
Trial and Error and Algorithm01:12

Trial and Error and Algorithm

403
A problem-solving strategy is a plan of action used to find a solution. Different strategies have distinct action plans. Trial and error involves trying different solutions until one works. For instance, to fix a broken printer, you might check ink levels, ensure the paper tray isn't jammed, and verify the printer's connection to your laptop. This method can be time-consuming but is commonly used. Thomas Edison, for example, used trial and error to find a suitable filament for the light...
403

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Large-scale tethered screen of RNA-binding proteins reveals novel regulators of poly(A) site selection.

Molecular cell·2026
Same author

EPHX2 Orchestrates Intestinal Epithelial Barrier Repair in Ulcerative Colitis: An Integrated Multi-Omics and Experimental Study.

Clinical and translational science·2026
Same author

Dual-Mode Gated Thermal Switch with Branched Interface for Self-Adaptive Thermoregulation.

ACS applied materials & interfaces·2026
Same author

Programmable Dielectrophoretic Assembly of Carbon Nanotube Arrays for Multidirectional Strain Sensor.

Small methods·2026
Same author

Exploring Antiperovskite Cathodes for Na-Ion Batteries.

ChemSusChem·2026
Same author

Hydration mechanisms and microstructural evolution of oil well cement modified by rice husk ash under low-temperature conditions.

Environmental research·2026
Same journal

DSPE-ViT: a lightweight vision transformer with dynamic sparse positional encoding for dense small object detection in UAV imagery.

Frontiers in neurorobotics·2026
Same journal

ST-HONet: Spatio-Temporal Hierarchical Network for long-horizon bimanual visuomotor imitation.

Frontiers in neurorobotics·2026
Same journal

ST-HADP: Spatio-Temporal hierarchical attention diffusion policy for long-horizon generalizable bimanual visuomotor imitation.

Frontiers in neurorobotics·2026
Same journal

EQISP: efficient quantized image signal processing with multi-scale pyramid fusion for resource constrained embodied perception.

Frontiers in neurorobotics·2026
Same journal

Research on embodied agent multimodal perception and real-time path planning algorithms for complex unstructured environments.

Frontiers in neurorobotics·2026
Same journal

NL-YOLOv5: a model with a larger receptive field and the ability to globally acquire features.

Frontiers in neurorobotics·2026
See all related articles

Related Experiment Video

Updated: Jan 24, 2026

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees
10:35

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees

Published on: November 15, 2017

9.6K

Solving Gravity Anomaly Matching Problem Under Large Initial Errors in Gravity Aided Navigation by Using an Affine

Tian Dai1, Lingjuan Miao1, Haijun Shao1

  • 1School of Automation, Beijing Institute of Technology, Beijing, China.

Frontiers in Neurorobotics
|May 29, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces an improved artificial bee colony algorithm for gravity-aided inertial navigation systems (GAINS). The enhanced algorithm improves underwater navigation accuracy, even with significant initial errors.

Keywords:
bio-inspired navigationevolutionary algorithmgravity aided navigationnavigation systemsoptimizationunderwater vehicle

More Related Videos

Collection and Identification of Pollen from Honey Bee Colonies
08:11

Collection and Identification of Pollen from Honey Bee Colonies

Published on: January 19, 2021

8.1K
Evaluating the Effect of Environmental Chemicals on Honey Bee Development from the Individual to Colony Level
07:39

Evaluating the Effect of Environmental Chemicals on Honey Bee Development from the Individual to Colony Level

Published on: April 1, 2017

9.5K

Related Experiment Videos

Last Updated: Jan 24, 2026

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees
10:35

Monitoring Colony-level Effects of Sublethal Pesticide Exposure on Honey Bees

Published on: November 15, 2017

9.6K
Collection and Identification of Pollen from Honey Bee Colonies
08:11

Collection and Identification of Pollen from Honey Bee Colonies

Published on: January 19, 2021

8.1K
Evaluating the Effect of Environmental Chemicals on Honey Bee Development from the Individual to Colony Level
07:39

Evaluating the Effect of Environmental Chemicals on Honey Bee Development from the Individual to Colony Level

Published on: April 1, 2017

9.5K

Area of Science:

  • Geophysics
  • Navigation Systems Engineering

Background:

  • Gravity-aided inertial navigation systems (GAINS) show promise for underwater navigation using Earth's gravitational anomaly field.
  • Current gravity matching algorithms struggle with accuracy when initial errors are large.

Purpose of the Study:

  • To develop an improved gravity matching algorithm for GAINS that addresses accuracy limitations with large initial errors.
  • To enhance the performance of evolutionary algorithms for underwater navigation applications.

Main Methods:

  • An affine transformation-based artificial bee colony (ABC) algorithm was developed.
  • Affine transformation was integrated into the initialization and evolutionary phases of the ABC algorithm.
  • A multi-point matching strategy using consecutive position vectors replaced single-point matching.
  • Inertial navigation system (INS) output characteristics were used to introduce evolutionary constraints.

Main Results:

  • The proposed algorithm significantly improves positioning precision under large initial error conditions.
  • Simulations using an actual gravity anomaly base map validated the algorithm's effectiveness.
  • The enhanced ABC algorithm mitigates false matching issues common with standard evolutionary approaches.

Conclusions:

  • The affine transformation-based ABC algorithm offers a robust solution for underwater gravity matching in GAINS.
  • This method enhances navigation accuracy and reliability, particularly in scenarios with substantial initial uncertainties.
  • The integration of INS constraints further refines the evolutionary process for improved performance.