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

Light Acquisition02:16

Light Acquisition

8.0K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
8.0K
Photoluminescence: Applications01:14

Photoluminescence: Applications

1.3K
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
1.3K
Household Wiring And Electrical Safety01:13

Household Wiring And Electrical Safety

1.7K
Companies that supply power to most modern households use three conductors, typically called a three-wire line. While one is neutral, the other two are both at 120 V but with opposite polarity, giving a voltage of 240 V between them. With a three-wire line, high-power appliances that require 240 V, such as electric stoves and clothes dryers, are linked between the two hot lines. 120 V appliances can be connected between the neutral and either of the hot lines. The neutral side, which is always...
1.7K
Light as Energy01:35

Light as Energy

68.9K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
68.9K
Directional Relays01:25

Directional Relays

784
Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
784
Electrical Systems01:21

Electrical Systems

829
In electrical engineering, the analysis of networks composed of passive linear components — resistors (R), capacitors (C), and inductors (L) — is fundamental. These components are organized into circuits where the relationship between input and output can be analyzed using transfer functions. The transfer function of an RLC circuit, which relates the voltage across a capacitor to the input voltage, can be derived using Kirchhoff's laws.
To derive the transfer function, consider an...
829

You might also read

Related Articles

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

Sort by
Same author

A Control Method for Optimizing the Spectral Ratio Characteristics of LED Lighting to Provide Color Rendering Performance Comparable to Natural Light.

Sensors (Basel, Switzerland)·2025
Same author

Minimization of temperature ranges between the top and bottom of an air flow controlling device through hybrid control in a plant factory.

TheScientificWorldJournal·2014
See all related articles

Related Experiment Video

Updated: Apr 26, 2026

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus
05:57

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Published on: April 8, 2019

6.3K

LED context lighting system in residential areas.

Sook-Youn Kwon1, Kyoung-Mi Im1, Jae-Hyun Lim2

  • 1Green Energy Technology Research Center, Kongju National University, Cheonan 331-717, Republic of Korea.

Thescientificworldjournal
|August 8, 2014
PubMed
Summary
This summary is machine-generated.

This study introduces an intelligent LED lighting system that adapts to user location and activity. It optimizes residential lighting for enhanced quality of life and reduced energy consumption.

More Related Videos

An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research
06:16

An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research

Published on: February 2, 2022

1.9K
Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis
07:16

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Published on: September 27, 2019

6.0K

Related Experiment Videos

Last Updated: Apr 26, 2026

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus
05:57

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Published on: April 8, 2019

6.3K
An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research
06:16

An Experimental Approach to Investigating Effects of Artificial Light at Night on Free-Ranging Animals: Implementation, Results, and Directions for Future Research

Published on: February 2, 2022

1.9K
Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis
07:16

Light Spot-Based Assay for Analysis of Drosophila Larval Phototaxis

Published on: September 27, 2019

6.0K

Area of Science:

  • Energy efficiency and sustainable lighting solutions.
  • Smart home technology and human-centric environmental control.
  • Applied optics and sensor fusion for intelligent systems.

Background:

  • Growing global concerns regarding climate change and energy security necessitate advanced lighting technologies.
  • Increasing living standards and life expectancy drive demand for enhanced quality of life, including optimized living environments.
  • Traditional lighting control is evolving towards intelligent systems for improved user experience and energy conservation.

Purpose of the Study:

  • To design an adaptive LED context lighting system for residential areas.
  • To automatically recognize user location and actions to create suitable lighting environments.
  • To integrate energy efficiency with enhanced living quality through intelligent lighting.

Main Methods:

  • Development of a lighting environment index considering user surroundings and control scenarios.
  • Measurement and analysis of optical characteristics influenced by LED dimming control.
  • Integration of Passive Infrared (PIR), piezoelectric, and power sensors for user context recognition.

Main Results:

  • A system capable of creating context-aware lighting environments based on user presence and activity.
  • Demonstration of how dimming control impacts optical characteristics and can be integrated into a lighting index.
  • Successful utilization of multiple sensors to infer user location and actions for lighting adjustments.

Conclusions:

  • The designed LED context lighting system effectively creates appropriate lighting environments by recognizing user location and actions.
  • The system contributes to both energy saving and improved quality of life in residential settings.
  • This research provides a foundation for future intelligent and adaptive lighting solutions.