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

Radioactivity and Nuclear Equations03:18

Radioactivity and Nuclear Equations

27.4K
Nuclear chemistry is the study of reactions that involve changes in nuclear structure. The nucleus of an atom is composed of protons and, except for hydrogen, neutrons. The number of protons in the nucleus is called the atomic number (Z) of the element, and the sum of the number of protons and the number of neutrons is the mass number (A). Atoms with the same atomic number but different mass numbers are isotopes of the same element.
A nuclide of an element has a specific number of protons and...
27.4K
Biological Effects of Radiation02:59

Biological Effects of Radiation

18.0K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
18.0K
The Nernst Equation02:59

The Nernst Equation

47.1K
Nonstandard Reaction Conditions
The interconnection between standard cell potentials and various thermodynamic parameters such as the standard free energy change ΔG° and equilibrium constant K has been previously explored. For example, a redox reaction involving zinc(II) and tin(II) ions at 1 M concentration with Eºcell = +0.291 V and ΔG° = −56.2 kJ is spontaneous.
47.1K
Modeling with Differential Equations01:25

Modeling with Differential Equations

89
Population dynamics can be described mathematically by considering the population size P(t) as a function of time. The rate of change of the population is then represented by the derivative of P(t). A simple assumption is that the rate of growth is proportional to the size of the population itself. This leads to an exponential growth model, where the population increases rapidly without bound. While this is a useful first approximation, it does not reflect realistic long-term...
89
Chemical Equations03:10

Chemical Equations

81.8K
Chemical equations represent the identities and relative quantities of substances involved in a chemical reaction. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation. Plus signs (+) separate individual reactant and product formulas, and an arrow (→) separates the reactant and product (left and right)...
81.8K
Henderson-Hasselbalch Equation02:48

Henderson-Hasselbalch Equation

76.6K
The ionization-constant expression for a solution of a weak acid can be written as:
76.6K

You might also read

Related Articles

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

Sort by
Same author

High-temperature cultivation of recombinant Pichia pastoris increases endoplasmic reticulum stress and decreases production of human interleukin-10.

Microbial cell factories·2014
Same author

Metabolic engineering of strains: from industrial-scale to lab-scale chemical production.

Journal of industrial microbiology & biotechnology·2014
Same author

Inhibition of histone deacetylase by butyrate protects rat liver from ischemic reperfusion injury.

International journal of molecular sciences·2014
Same author

[Determination of arsenic speciation in Scomberomorus niphonius by capillary electrophoresis-inductively coupled plasma mass spectrometry].

Guang pu xue yu guang pu fen xi = Guang pu·2014
Same author

Regulation of CRADD-caspase 2 cascade by histone deacetylase 1 in gastric cancer.

American journal of translational research·2014
Same author

Generating and identifying optical orbital angular momentum with silicon photonic circuits.

Optics letters·2014
Same journal

Long-term stabilization of intensity-difference squeezing from four-wave mixing in rubidium vapor.

Optics express·2026
Same journal

Robust 3D topography measurement of large-range high-aspect-ratio structures based on dual-domain statistical filtering in SD-OCT.

Optics express·2026
Same journal

Broadband transmissive terahertz metasurface for simultaneous quad-mode OAM multiplexing.

Optics express·2026
Same journal

Leveraging two-dimensional materials for high-sensitivity optical sensors: quasi-bound states in the continuum within hybrid metasurfaces.

Optics express·2026
Same journal

Resolution investigation for dual-spherical-wave optical scanning holographic microscopy: methods and performance.

Optics express·2026
Same journal

Robustness of parallel subnetwork-filtered diffractive deep neural networks.

Optics express·2026
See all related articles

Related Experiment Video

Updated: Feb 6, 2026

Positron Emission Tomography-based Dose Painting Radiation Therapy in a Glioblastoma Rat Model using the Small Animal Radiation Research Platform
07:57

Positron Emission Tomography-based Dose Painting Radiation Therapy in a Glioblastoma Rat Model using the Small Animal Radiation Research Platform

Published on: March 24, 2022

3.2K

Phosphor modeling based on fluorescent radiative transfer equation.

Yupu Ma, Meng Wang, Jie Sun

    Optics Express
    |August 19, 2018
    PubMed
    Summary
    This summary is machine-generated.

    A new model accurately predicts light propagation in phosphor-converted LEDs (pc-LEDs). This fluorescence radiative transfer equation (FRTE) model improves optical performance predictions compared to older theories.

    More Related Videos

    One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy
    06:47

    One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy

    Published on: October 23, 2017

    11.9K
    Low-energy Cathodoluminescence for OxyNitride Phosphors
    07:03

    Low-energy Cathodoluminescence for OxyNitride Phosphors

    Published on: November 15, 2016

    11.1K

    Related Experiment Videos

    Last Updated: Feb 6, 2026

    Positron Emission Tomography-based Dose Painting Radiation Therapy in a Glioblastoma Rat Model using the Small Animal Radiation Research Platform
    07:57

    Positron Emission Tomography-based Dose Painting Radiation Therapy in a Glioblastoma Rat Model using the Small Animal Radiation Research Platform

    Published on: March 24, 2022

    3.2K
    One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy
    06:47

    One-step Protocol for Evaluation of the Mode of Radiation-induced Clonogenic Cell Death by Fluorescence Microscopy

    Published on: October 23, 2017

    11.9K
    Low-energy Cathodoluminescence for OxyNitride Phosphors
    07:03

    Low-energy Cathodoluminescence for OxyNitride Phosphors

    Published on: November 15, 2016

    11.1K

    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Solid-State Lighting

    Background:

    • Light propagation in phosphors is crucial for phosphor-converted light-emitting diode (pc-LED) performance.
    • Accurate modeling is needed to optimize optical properties like light absorption, scattering, and fluorescence.

    Purpose of the Study:

    • To present a general model for light propagation in phosphor layers based on the fluorescence radiative transfer equation (FRTE).
    • To account for realistic boundary conditions including LED incidence and interface reflections.
    • To validate the model against experimental data and compare it with existing theories.

    Main Methods:

    • Developed a general model integrating the radiative transfer equation with fluorescence (FRTE).
    • Incorporated boundary conditions: Lambertian incidence, diffuse reflection, and Fresnel reflection.
    • Extended the spectral element method (SEM) for numerical solution of FRTE.
    • Iteratively calculated blue and yellow light radiant intensity and angular properties.

    Main Results:

    • The FRTE model accurately predicted light extraction efficiency (LEE) with a maximum deviation of 4.9%.
    • Angular correlated color temperature (CCT) predictions showed good agreement with experiments (max deviation 3.7%).
    • Comparison revealed the Kubelka-Munk (KM) theory may overestimate phosphor heating by neglecting blue light scattering.

    Conclusions:

    • The presented FRTE model provides a validated and accurate method for analyzing light propagation in pc-LED phosphors.
    • This model offers improved predictions of optical performance compared to the traditional KM theory.
    • The findings contribute to the optimization of pc-LED design and performance through better optical modeling.