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

Root Loci for Positive-Feedback Systems01:23

Root Loci for Positive-Feedback Systems

352
The Hartley oscillator is a positive feedback system that sustains oscillations by feeding the output back to the input in phase, thereby reinforcing the signal. Positive feedback systems can be viewed as negative feedback systems with inverted feedback signals. In these systems, the root locus encompasses all points on the s-plane where the angle of the system transfer function equals 360 degrees.
The construction rules for the root locus in positive feedback systems are similar to those in...
352
Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems01:19

Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems

736
Phase I biotransformation reactions are integral to drug metabolism, predominantly involving oxidative, reductive, and hydrolytic transformations. Chief among these are oxidative reactions, which enhance the hydrophilicity of xenobiotics and introduce polar functional groups to facilitate their elimination from the body.
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
736
Phase I Reactions: Oxidation of Carbon-Heteroatom and Miscellaneous Systems01:15

Phase I Reactions: Oxidation of Carbon-Heteroatom and Miscellaneous Systems

421
Oxidative reactions are pivotal in metabolizing numerous compounds, including pharmaceutical drugs. These reactions often occur in carbon-heteroatom systems, such as carbon-nitrogen, carbon-sulfur, and carbon-oxygen.
In carbon-nitrogen systems, aliphatic and aromatic amines can undergo oxidative reactions. Secondary and tertiary amines, like those found in tricyclic antidepressants, can undergo N-dealkylation, a process that involves the oxidation of the alkyl group. In addition, oxidative...
421
Phase Diagrams02:39

Phase Diagrams

50.3K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
50.3K
Phase Transitions02:31

Phase Transitions

23.3K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
23.3K
Positive Regulator Molecules01:45

Positive Regulator Molecules

136.5K
To consistently produce healthy cells, the cell cycle—the process that generates daughter cells—must be precisely regulated.
136.5K

You might also read

Related Articles

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

Sort by
Same author

Interference in multi-user optical wireless communications systems.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2020
Same author

Beam shaping with tip-tilt varifocal mirror for indoor optical wireless communication.

Optics express·2017
Same author

Electrothermally actuated tip-tilt-piston micromirror with integrated varifocal capability.

Optics express·2015
Same author

Reverse polarity optical-OFDM (RPO-OFDM): dimming compatible OFDM for gigabit VLC links.

Optics express·2013
Same author

Monitoring walking and cycling of middle-aged to older community dwellers using wireless wearable accelerometers.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2013
Same author

Continuous monitoring of functional activities using wearable, wireless gyroscope and accelerometer technology.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2012
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Feb 9, 2026

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms
05:57

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms

Published on: July 2, 2013

13.8K

Two-Phase Framework for Indoor Positioning Systems Using Visible Light.

Gregary B Prince1, Thomas D C Little2

  • 1Department of Electrical and Computer Engineering, College of Engineering, Boston University, Boston, MA 02215, USA. gbprince@bu.edu.

Sensors (Basel, Switzerland)
|June 14, 2018
PubMed
Summary
This summary is machine-generated.

This study introduces a new two-phase Visible Light Positioning (VLP) framework. It enhances indoor positioning system (IPS) robustness with limited lights and integrates various components for better performance.

Keywords:
AoACDMAFDMAOFDMOOKPAMPPMRSSTDMAToFindoor positioningproximitytriangulationtrilaterationvisible light

More Related Videos

Inactivation of Pathogens via Visible-Light Photolysis of Riboflavin-5&#8242;-Phosphate
08:25

Inactivation of Pathogens via Visible-Light Photolysis of Riboflavin-5′-Phosphate

Published on: April 6, 2022

2.3K
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

10.4K

Related Experiment Videos

Last Updated: Feb 9, 2026

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms
05:57

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms

Published on: July 2, 2013

13.8K
Inactivation of Pathogens via Visible-Light Photolysis of Riboflavin-5&#8242;-Phosphate
08:25

Inactivation of Pathogens via Visible-Light Photolysis of Riboflavin-5′-Phosphate

Published on: April 6, 2022

2.3K
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

10.4K

Area of Science:

  • Optical Engineering
  • Wireless Communication Systems
  • Indoor Navigation Technologies

Background:

  • Visible Light Positioning (VLP) is a promising Indoor Positioning System (IPS) technology leveraging solid-state lighting.
  • Existing VLP methods often use fixed combinations of core IPS components and focus solely on accuracy.
  • Challenges remain in VLP robustness, particularly with sparse lighting infrastructure.

Purpose of the Study:

  • To present a novel two-phase algorithmic framework for VLP.
  • To improve the robustness of VLP systems facing insufficient anchor luminaries.
  • To offer a flexible framework accommodating diverse combinations of IPS components.

Main Methods:

  • Development of a two-phase indoor positioning algorithmic framework.
  • Integration of modulation, multiple access, channel measurement, and positioning algorithms.
  • Evaluation of robustness under conditions of limited anchor luminaries.

Main Results:

  • The proposed framework demonstrates increased robustness in VLP.
  • The algorithmic approach allows flexible incorporation of various IPS components.
  • Enhanced performance metrics beyond simple accuracy and precision are achievable.

Conclusions:

  • The novel two-phase VLP framework offers a more adaptable and robust solution for indoor positioning.
  • This approach addresses limitations of current VLP systems, especially in challenging lighting environments.
  • Future VLP research can benefit from this flexible framework for component integration and performance evaluation.