Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Turbulent Flow: Problem Solving

Turbulent Flow: Problem Solving

Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...

Laminar Flow: Problem Solving

Laminar Flow: Problem Solving

Laminar flow occurs when a fluid moves smoothly in parallel layers with minimal mixing and turbulence. In fluid mechanics, ensuring laminar flow within a pipe is essential for precise control of flow characteristics, especially in engineering applications. The key factor in determining whether flow remains laminar is the Reynolds number, a dimensionless quantity that depends on the fluid's velocity, density, viscosity, and the pipe's diameter. A Reynolds number of 2100 or lower...

Uniform Depth Channel Flow: Problem Solving

Uniform Depth Channel Flow: Problem Solving

To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...

Newtonian Fluid: Problem Solving

Newtonian Fluid: Problem Solving

Newtonian fluids exhibit a constant viscosity, meaning their shear stress and shear strain rate are directly proportional. This property ensures a predictable and stable response to applied forces, maintaining a linear relationship between force and flow. Examples include water, air, and light oils, consistently demonstrating this proportional behavior regardless of external conditions.
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...

Accelerating Fluids

Accelerating Fluids

When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:

Turbulent Flow

Turbulent Flow

Turbulent flow is characterized by unpredictable fluctuations in velocity and pressure, which result in a chaotic fluid movement distinct from the orderly patterns of laminar flow. While laminar flow is governed by smooth, parallel layers with minimal mixing, turbulent flow exhibits highly irregular, three-dimensional patterns. This behavior arises due to instabilities in the fluid's velocity profile, and amplifies as the flow velocity increases. Minor disturbances, known as turbulent...

You might also read

Related Articles

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

Sort by

Same author

Direct neutrino-mass measurement based on 259 days of KATRIN data.

Science (New York, N.Y.)·2025

Same author

Remarkable Case of Foreign Bodies in the Stomach and Duodenum, Complete Obstruction of the Bowel and Mechanical Displacement of Organs.

Medical examiner (Philadelphia, Pa.)·2023

Same author

REVISE: re-evaluating the inhibition of stress erosions in the ICU-statistical analysis plan for a randomized trial.

Trials·2023

Same author

Metabolomics Analysis of Mesenchymal Stem Cell (MSC) Therapy in a Phase I Clinical Trial of Septic Shock: An Exploratory Study.

Metabolites·2023

Same author

Policy-making and implementation for newborn bloodspot screening in Europe: a comparison between EURORDIS principles and UK practice.

The Lancet regional health. Europe·2023

Same author

Assessing the safety of new germicidal far-UVC technologies.

Photochemistry and photobiology·2023

Same journal

Quantitative understanding of PDF fits and their uncertainties.

The European physical journal. C, Particles and fields·2026

Same journal

Probing the Higgs portal to a strongly-interacting dark sector at the FCC-ee.

The European physical journal. C, Particles and fields·2026

Same journal

Quantifying vacuum-like jets in heavy-ion collisions: a machine learning study.

The European physical journal. C, Particles and fields·2026

Same journal

High-energy decays and weak quantum measurements.

The European physical journal. C, Particles and fields·2026

Same journal

Combined effective field theory interpretation of Higgs boson, electroweak vector boson, top quark, and multijet measurements.

The European physical journal. C, Particles and fields·2026

Same journal

A journey to ITACA: Ion Tracking with Ammonium Cations Apparatus.

The European physical journal. C, Particles and fields·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Dec 29, 2025

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

Software compensation in particle flow reconstruction.

Huong Lan Tran¹, Katja Krüger¹, Felix Sefkow¹

¹1Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.

The European Physical Journal. C, Particles and Fields

|January 31, 2020

Summary

This summary is machine-generated.

Software compensation in particle flow calorimetry improves energy resolution by distinguishing sub-showers. This technique enhances jet energy measurements and pattern recognition for particle identification.

More Related Videos

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Published on: March 12, 2019

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

Related Experiment Videos

Last Updated: Dec 29, 2025

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Simultaneous Measurement of Turbulence and Particle Kinematics Using Flow Imaging Techniques

Published on: March 12, 2019

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Determining 3D Flow Fields via Multi-camera Light Field Imaging

Published on: March 6, 2013

Area of Science:

High-energy physics
Particle physics instrumentation
Detector technologies

Background:

Particle flow algorithms leverage granular calorimeters and software for particle reconstruction.
Software compensation exploits local energy density to correct for calorimeter non-compensation.
Accurate particle energy measurement is crucial for complex event topologies.

Purpose of the Study:

To describe the software compensation technique for particle flow reconstruction.
To detail its implementation within the Pandora Particle Flow Algorithm (PandoraPFA).
To investigate the impact of software compensation on calorimeter granularity choices for the International Large Detector (ILD).

Main Methods:

Utilizing high spatial granularity and analogue energy information in calorimeters.
Implementing software compensation to discriminate electromagnetic and hadronic sub-showers.
Applying the Pandora Particle Flow Algorithm (PandoraPFA) for reconstruction.

Main Results:

Improved single particle energy resolution through correction of intrinsic calorimeter non-compensation.
Enhanced overall jet energy resolution via better neutral hadron energy measurement.
Improved pattern recognition accuracy by more precise calorimeter-tracker energy matching.

Conclusions:

Software compensation is a key technique for improving particle flow calorimetry performance.
The PandoraPFA effectively implements software compensation, enhancing detector capabilities.
This technique influences the design of future calorimeters, such as for the ILD concept.