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

Measurement of Air Content in Concrete01:23

Measurement of Air Content in Concrete

294
Air content measurement in concrete is critical for ensuring structural integrity and durability of concrete structures, especially in environments prone to severe weather conditions. Accurate air content analysis optimizes concrete's resistance to freeze-thaw cycles and enhances its workability and strength. Several methods are standardized under ASTM guidelines to measure the air content in fresh concrete, each suitable for different concrete types and conditions.
The pressure method,...
294
Chemical Factors Affecting Respiration Centers01:31

Chemical Factors Affecting Respiration Centers

1.3K
Chemical factors such as changing CO2, O2, and H+ levels in arterial blood play a critical role in influencing respiration depth and rates. These variations are detected by chemoreceptors—specialized sensors located in two primary body areas. Central chemoreceptors are found throughout the brain stem, including the ventrolateral medulla, while peripheral chemoreceptors are located in the aortic arch and carotid arteries.
CO2 has a potent influence on respiration and is strictly regulated....
1.3K
Temperature Dependence on Reaction Rate02:55

Temperature Dependence on Reaction Rate

83.8K
The Collision Theory
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...
83.8K
Parameters Affecting Nonlinear Elimination: Zero-Order Input, First-Order Absorption and Two-Compartment Model01:13

Parameters Affecting Nonlinear Elimination: Zero-Order Input, First-Order Absorption and Two-Compartment Model

129
Drugs administered through various routes can lead to nonlinear elimination, resulting in complex pharmacokinetic behaviors crucial to understanding efficacious drug dosing.
When a drug is administered through a constant intravenous infusion and eliminated via nonlinear pharmacokinetics, it follows zero-order input. For example, oral drugs undergo first-order absorption upon administration and are eliminated through nonlinear pharmacokinetics.
In the case of subcutaneously administered drugs,...
129
Mechanistic Models: Compartment Models in Individual and Population Analysis01:23

Mechanistic Models: Compartment Models in Individual and Population Analysis

89
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
89

You might also read

Related Articles

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

Sort by
Same author

Fast prediction of indoor airflow distribution inspired by synthetic image generation artificial intelligence.

Building simulation·2023
Same author

Quantifying spatiotemporal variability in occupant exposure to an indoor airborne contaminant with an uncertain source location.

Building simulation·2023
Same author

Tradeoffs among indoor air quality, financial costs, and CO<sub>2</sub> emissions for HVAC operation strategies to mitigate indoor virus in U.S. office buildings.

Building and environment·2022
Same author

Investigation of HVAC operation strategies for office buildings during COVID-19 pandemic.

Building and environment·2021
Same author

Assessing the use of portable air cleaners for reducing exposure to airborne diseases in a conference room with thermal stratification.

Building and environment·2021
Same author

Measured influence of overhead HVAC on exposure to airborne contaminants from simulated speaking in a meeting and a classroom.

Indoor air·2021
Same journal

Correction: Grewal et al. Diversity and Representation in Cardiovascular Research: Evidence Gaps, Emerging Models, and Policy Implications. <i>Int. J. Environ. Res. Public Health</i> 2026, <i>23</i>, 241.

International journal of environmental research and public health·2026
Same journal

Drinking Water Quality and Health Risk Assessment in Rural Ghana: Evidence from North-East and North Gonja Districts in the Savannah Region.

International journal of environmental research and public health·2026
Same journal

Physical Activity of University Students During COVID-19 Restrictions: Evidence from Poland.

International journal of environmental research and public health·2026
Same journal

Assessment of Occupational Health and Safety Hazards in Mosquito Control Personnel in North Carolina and Virginia, USA.

International journal of environmental research and public health·2026
Same journal

Association Between Dysfunctional Parenting Practices and Suspected Gaming Disorder Among Japanese Male Junior High School Students: A Cross-Sectional Study of Parental Assessment.

International journal of environmental research and public health·2026
Same journal

A National Virtual Peer Support Group for Women Veterans Living with Breast Cancer: Lessons from the Field.

International journal of environmental research and public health·2026
See all related articles

Related Experiment Video

Updated: Sep 20, 2025

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace
09:03

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

Published on: September 6, 2018

12.5K

A Time-Varying Model for Predicting Formaldehyde Emission Rates in Homes.

Haoran Zhao1, Iain S Walker1, Michael D Sohn1

  • 1Residential Building Systems Group and Indoor Environment Group, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

International Journal of Environmental Research and Public Health
|June 10, 2022
PubMed
Summary
This summary is machine-generated.

This study presents a new method to estimate formaldehyde emissions in homes using field measurements. The approach accurately predicts emission rates, improving upon traditional models with less data.

Keywords:
emission ratefield measured dataformaldehydehumidityindoor air qualitymodelingnew homessimulationtemperature

More Related Videos

Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers
11:50

Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers

Published on: August 3, 2014

41.7K
Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
10:29

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Published on: March 21, 2016

12.4K

Related Experiment Videos

Last Updated: Sep 20, 2025

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace
09:03

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

Published on: September 6, 2018

12.5K
Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers
11:50

Measurement of Greenhouse Gas Flux from Agricultural Soils Using Static Chambers

Published on: August 3, 2014

41.7K
Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers
10:29

Calibrated Passive Sampling - Multi-plot Field Measurements of NH3 Emissions with a Combination of Dynamic Tube Method and Passive Samplers

Published on: March 21, 2016

12.4K

Area of Science:

  • Environmental Science
  • Building Science
  • Indoor Air Quality

Background:

  • Existing models for volatile organic compound emissions are often scenario-specific and require extensive material data.
  • Accurate estimation of formaldehyde emissions is crucial for understanding indoor air quality and human health impacts.

Purpose of the Study:

  • To develop and validate a novel approach for estimating aggregated formaldehyde emission rates in dwellings.
  • To create a predictive model for formaldehyde emissions that requires fewer specific building parameters than traditional methods.

Main Methods:

  • Utilized a multi-parameter regression model incorporating field-measured formaldehyde concentrations, air exchange rates, and indoor environmental parameters.
  • Applied mass transfer and well-mixed transport models to predict time-varying formaldehyde emission rates normalized by floor area.
  • Developed a generic emission model based on aggregated data from 27 homes for broader applicability.

Main Results:

  • The developed model accurately estimates time-varying formaldehyde emission rates for individual homes.
  • The generic model demonstrated substantially lower errors in predicting household formaldehyde concentrations compared to constant emission rate models.
  • The new approach requires less unique building information for effective emission rate prediction.

Conclusions:

  • The proposed method offers a more efficient and accurate way to estimate formaldehyde emissions in residential buildings.
  • This approach can improve indoor air quality assessments and inform building design and material selection.
  • The findings support the use of aggregated field measurements for developing robust building emission models.