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

What is a Mode?01:07

What is a Mode?

26.0K
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
26.0K
Vertical Curve: Problem Solving01:23

Vertical Curve: Problem Solving

490
Vertical curves provide the transition between two roadway grades, ensuring safety, comfort, and functionality. Calculating elevations at specific stations along the curve involves several systematic steps based on the curve's geometry and provided design parameters.The vertical curve is defined by its length, grades, Point of Vertical Intersection (P.V.I.) location, and P.V.I. elevation. The stations of the Point of Vertical Curvature (P.V.C.), where the curve begins, and the Point of Vertical...
490
Statistical Methods for Analyzing Epidemiological Data01:25

Statistical Methods for Analyzing Epidemiological Data

963
Epidemiological data primarily involves information on specific populations' occurrence, distribution, and determinants of health and diseases. This data is crucial for understanding disease patterns and impacts, aiding public health decision-making and disease prevention strategies. The analysis of epidemiological data employs various statistical methods to interpret health-related data effectively. Here are some commonly used methods:
963
Ventilatory Modes01:14

Ventilatory Modes

1.5K
Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
1.5K
Introduction to Vertical Curves01:24

Introduction to Vertical Curves

587
Vertical curves are parabolic transitions that connect different grades on highways and railroads, ensuring a smooth alignment between back and forward tangents. The back tangent represents the initial grade, while the forward tangent defines the subsequent grade. These curves can be symmetrical, with equal tangent lengths, or nonsymmetrical, with varying lengths. The key points defining a vertical curve include the Point of Vertical Intersection (P.V.I.), where the tangents meet; the Point of...
587
Heat and Free Expansion01:24

Heat and Free Expansion

2.9K
The work done by a thermodynamic system depends not only on the initial and final states but also on the intermediate states—that is, on the path. Like work, when heat is added to a thermodynamic system, it undergoes a change of state, and the state attained depends on the path from the initial state to the final state. Consider an ideal gas cylinder fitted with a piston. When the cylinder is heated at a constant temperature, the gas molecules absorb energy and expand slowly in a...
2.9K

You might also read

Related Articles

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

Sort by
Same author

An open-source 3D printing system enabling in-situ freeze-thaw processing of hydrogels.

Scientific reports·2026
Same author

ENPP1 blockade with a humanized monoclonal antibody enhances renal repair after acute kidney injury.

Cell stem cell·2026
Same author

Refining the Bariatric Journey: A Proposed Neoadjuvant and Adjuvant Framework for GLP-1 Receptor Agonists Inspired by Oncology.

Current obesity reports·2026
Same author

Snhg18 promotes hypoxic pulmonary hypertension by enhancing glycolysis.

Respiratory research·2026
Same author

Primary prophylaxis with pegylated G-CSF is associated with improved treatment completion and progression-free survival in locally advanced cervical cancer undergoing concurrent chemoradiotherapy: a retrospective cohort study.

Future oncology (London, England)·2026
Same author

Visual Detection for Environmental Antimicrobial Resistance Genes by Recombinase Polymerase Amplification Combined with Lateral Flow Dipstick.

Current microbiology·2026
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: Jan 30, 2026

Methods and Tips for Intravenous Administration of Adeno-associated Virus to Rats and Evaluation of Central Nervous System Transduction
08:11

Methods and Tips for Intravenous Administration of Adeno-associated Virus to Rats and Evaluation of Central Nervous System Transduction

Published on: August 25, 2017

12.1K

Analyzing bowtie structures with sharp tips by a vertical mode expansion method.

Hualiang Shi, Ya Yan Lu, Qiang Du

    Optics Express
    |January 18, 2019
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a new numerical method to accurately analyze sharp-tipped metallic nanoparticle bowtie structures, crucial for enhancing local electromagnetic fields in various applications.

    More Related Videos

    Measurement of Chladni Mode Shapes with an Optical Lever Method
    04:39

    Measurement of Chladni Mode Shapes with an Optical Lever Method

    Published on: June 5, 2020

    5.8K
    Making Patch-pipettes and Sharp Electrodes with a Programmable Puller
    05:30

    Making Patch-pipettes and Sharp Electrodes with a Programmable Puller

    Published on: October 8, 2008

    25.9K

    Related Experiment Videos

    Last Updated: Jan 30, 2026

    Methods and Tips for Intravenous Administration of Adeno-associated Virus to Rats and Evaluation of Central Nervous System Transduction
    08:11

    Methods and Tips for Intravenous Administration of Adeno-associated Virus to Rats and Evaluation of Central Nervous System Transduction

    Published on: August 25, 2017

    12.1K
    Measurement of Chladni Mode Shapes with an Optical Lever Method
    04:39

    Measurement of Chladni Mode Shapes with an Optical Lever Method

    Published on: June 5, 2020

    5.8K
    Making Patch-pipettes and Sharp Electrodes with a Programmable Puller
    05:30

    Making Patch-pipettes and Sharp Electrodes with a Programmable Puller

    Published on: October 8, 2008

    25.9K

    Area of Science:

    • Plasmonics and Nanophotonics
    • Computational Electromagnetics
    • Materials Science

    Background:

    • Metallic nanoparticle bowtie structures exhibit strong local field enhancement for diverse applications.
    • Previous numerical studies were restricted to rounded-tip structures, limiting analysis of sharp-tip geometries.
    • Sharp tips in bowtie structures present numerical challenges due to field singularities.

    Purpose of the Study:

    • To develop and apply an advanced numerical method for analyzing metallic bowtie structures with mathematically sharp tips.
    • To investigate the influence of geometric parameters on the electromagnetic field enhancement in sharp-tip bowtie structures.
    • To overcome the limitations of existing numerical techniques for sharp-cornered nanostructures.

    Main Methods:

    • An improved Vertical Mode Expansion Method (VMEM) was employed.
    • Boundary integral equation techniques were incorporated to handle domains with corners.
    • Numerical simulations were performed on sharp-tip bowtie structures.

    Main Results:

    • The improved VMEM successfully analyzed bowtie structures with mathematically sharp tips.
    • The study revealed the impact of tip-to-tip distance, apex angle, and substrate on local field enhancement.
    • Accurate numerical solutions were obtained for previously intractable sharp-tip geometries.

    Conclusions:

    • The developed VMEM provides a robust framework for simulating sharp-tip nanostructures.
    • Understanding the influence of geometric parameters is key to optimizing bowtie antennas for specific applications.
    • This method advances the accurate numerical modeling of plasmonic nanostructures with sharp features.