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

Circuit Terminology

Circuit Terminology

An electrical network is a system composed of interconnected elements, such as resistors, capacitors, inductors, and voltage or current sources. Unlike a circuit, an electrical network does not necessarily form a closed path. In other words, while all circuits can be considered networks due to their interconnected nature, not every network qualifies as a circuit.
A circuit, on the other hand, is also an interconnected system of electrical elements but must contain one or more closed paths.

Current Growth And Decay In RL Circuits

Current Growth And Decay In RL Circuits

The current growth and decay in RL circuits can be understood by considering a series RL circuit consisting of a resistor, an inductor, a constant source of emf, and two switches. When the first switch is closed, the circuit is equivalent to a single-loop circuit consisting of a resistor and an inductor connected to a source of emf. In this case, the source of emf produces a current in the circuit. If there were no self-inductance in the circuit, the current would rise immediately to a steady...

Parallel RLC Circuits

Parallel RLC Circuits

Street lamps equipped with RLC surge protectors are an excellent example of applying circuit analysis in practical scenarios. These surge protectors safeguard the lamp's components against sudden voltage spikes.
A simplified parallel RLC circuit model with a DC input source generating a step response is employed in this context. When the switch is turned on, Kirchhoff's current law is applied, leading to a second-order differential equation.

RL Circuit without Source

RL Circuit without Source

When a DC source is suddenly disconnected from an RL (Resistor-Inductor) circuit, the circuit becomes source-free. Assuming the inductor has an initial current denoted as I0, the initial energy stored in the inductor can be determined.
Applying Kirchhoff's voltage law around the loop of the circuit and substituting the voltages across the inductor and resistor yields a first-order differential equation. A logarithmic equation is obtained by rearranging the terms in this equation, integrating...

RL Circuits

RL Circuits

An RL circuit consists of a resistor and an inductor and may have a source of emf connected to it. The inductor in the circuit helps to prevent rapid changes in current, which can be helpful if a steady current is required but the external source has a fluctuating emf. Consider an open RL circuit connected to a source of constant emf. As soon as the circuit is closed, the current begins to increase at a rate that depends only on the value of the inductance in the circuit. The greater the...

Mesh Analysis

Mesh Analysis

Mesh analysis is a valuable method for simplifying circuit analysis using mesh currents as key circuit variables. Unlike nodal analysis, which focuses on determining unknown voltages, mesh analysis applies Kirchhoff's voltage law (KVL) to find unknown currents within a circuit. This method is particularly convenient in reducing the number of simultaneous equations that need to be solved.
A fundamental concept in mesh analysis is the definition of meshes and mesh currents. A mesh is a closed...

You might also read

Related Articles

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

Sort by

Same author

Prognostic value of multiparameter [<sup>68</sup>Ga]Ga-DOTA-FAPI-04 PET/MR imaging biomarkers for patients with advanced pancreatic cancer.

European journal of nuclear medicine and molecular imaging·2025

Same author

Feasibility of fully automatic assessment of cervical canal stenosis using MRI via deep learning.

Quantitative imaging in medicine and surgery·2025

Same author

Revisiting the Association Between Beta-blockers and Psoriasis: Evidence from Real-World Data.

Endocrine, metabolic & immune disorders drug targets·2025

Same author

Posterior capsular Opacification: Pathogenesis, challenges, and innovative therapeutic strategies.

Experimental eye research·2025

Same author

Surface-Localized Crosslinked MEW PCL-Hydrogel Scaffolds with Tunable Porosity for Enhanced Cell Adhesion and Viability.

Polymers·2025

Same author

Mn<sub>3</sub>O<sub>4</sub> nanozyme-based anti-inflammatory therapy modulates microglial phenotype by downregulating TLR4/NOX2 expression and further alleviates Alzheimer's disease pathology.

Theranostics·2025

Search research articles

Related Experiment Video

Updated: Jul 8, 2026

Comparative Study of Simulation of Temperature Rise in Ring Main Unit

Comparative Study of Simulation of Temperature Rise in Ring Main Unit

Published on: July 5, 2024

The emergy analysis of loop circuit.

Kai Cao¹, Xiao Feng

¹Department of Chemical Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.

Environmental Monitoring and Assessment

|January 17, 2008

Summary

Emergy analysis helps evaluate system resource use and environmental impact. This study distinguishes direct and indirect loop circuits to prevent emergy double counting in process industry applications.

Area of Science:

Environmental Science
Chemical Engineering
Systems Analysis

Background:

Emergy analysis is crucial for assessing resource utilization and environmental performance.
Loop circuits are prevalent in the process industry but pose challenges for accurate emergy analysis.
Emergy double counting is a common error in analyzing systems with loop circuits.

Purpose of the Study:

To theoretically distinguish between direct and indirect loop circuits.
To propose methods for avoiding emergy double counting in loop circuit analysis.
To demonstrate the proposed methods using real-world production processes.

Main Methods:

Theoretical differentiation of direct and indirect loop circuits.
Development of specific methodologies to prevent emergy double counting.

More Related Videos

Studying DNA Looping by Single-Molecule FRET

Studying DNA Looping by Single-Molecule FRET

Published on: June 28, 2014

Related Experiment Videos

Last Updated: Jul 8, 2026

Comparative Study of Simulation of Temperature Rise in Ring Main Unit

Comparative Study of Simulation of Temperature Rise in Ring Main Unit

Published on: July 5, 2024

Studying DNA Looping by Single-Molecule FRET

Studying DNA Looping by Single-Molecule FRET

Published on: June 28, 2014

Application and validation of methods in PVC and vinyl acetate production.

Main Results:

Clear distinction established between direct and indirect loop circuits.
Effective methods proposed to eliminate emergy double counting.
Successful demonstration of methods in industrial case studies.

Conclusions:

Accurate emergy analysis of loop circuits is achievable with the proposed methods.
The study provides a robust framework for resource and environmental performance assessment in process industries.
The findings contribute to more reliable emergy evaluations in complex industrial systems.