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

Differential Relays

Differential Relays

Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...

Equivalent Resistance

Equivalent Resistance

In circuit analysis, situations often arise where resistors are neither in series nor parallel configurations. To tackle such scenarios, three-terminal equivalent networks like the wye (Y) (Figure 1 (a)) or tee (T) and delta (Δ) (Figure 1 (b)) or pi (π) networks come into play. These networks offer versatile solutions and are frequently encountered in various applications, including three-phase electrical systems, electrical filters, and matching networks.

The Delta-to-Delta Circuit

The Delta-to-Delta Circuit

In a delta-delta configuration, the source and the load are connected in a delta manner, forming a closed loop that divides the network into three distinct phases. This configuration makes the phase voltages identical to line voltages. Assuming the sources are in positive sequence, the phase voltages can be expressed directly without having a neutral wire.

Transmission-Line Differential Equations

Transmission-Line Differential Equations

Transmission lines are essential components of electrical power systems. They are characterized by the distributed nature of resistance (R), inductance (L), and capacitance (C) per unit length. To analyze these lines, differential equations are employed to model the variations in voltage and current along the line.
Line Section Model
A circuit representing a line section of length Δx helps in understanding the transmission line parameters. The voltage V(x) and current i(x) are measured...

Equivalent Circuits for Practical Transformers

Equivalent Circuits for Practical Transformers

The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The...

Per-Unit Sequence Models

Per-Unit Sequence Models

An ideal Y-Y transformer, grounded through neutral impedances, displays per-unit sequence networks akin to those of a single-phase ideal transformer when subjected to balanced positive- or negative-sequence currents. These currents do not produce neutral currents, and their associated voltage drops.
Zero-sequence currents, which are identical in magnitude and phase, generate a neutral current, resulting in voltage drops across the neutral impedance and the low-voltage winding. If the...

You might also read

Related Articles

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

Sort by

Same author

MET-associated immune prognostic signature predicts survival and guides personalized therapy in glioma.

Acta neuropathologica communications·2026

Same author

Tasimelteon inhibits glioma proliferation by inducing ferroptosis via the SP1/ACSL4 pathway.

Cellular oncology (Dordrecht, Netherlands)·2026

Same author

Single-cell multi-omics dissection of RevitalAge Markers uncovers age-dependent immunotherapy resistance and druggable targets in melanoma.

Biology direct·2026

Same author

Extracellular Matrix-Related Gene Signature Implied Immunosuppressive Status and Adverse Survival in Diffuse Glioma Patients.

Cancers·2026

Same author

Spatially resolved single-cell landscape of tumor immunotypes reveals the central role of interferon signaling and plasmacytoid dendritic cells in triple-negative breast cancer.

Journal for immunotherapy of cancer·2026

Same author

Sweep Heating Thermal Conductivity Detector for 100 ppm Hydrogen Gas Detection.

ACS omega·2026

Same journal

Monolithic additive manufacturing of a fluid-structure coupled architected cellular mechanical system for rate-adaptive enhanced energy dissipation.

Materials horizons·2026

Same journal

Decoupling parameters of adhesion from viscoelasticity in the human perception of stickiness <i>via</i> shear-stiffening elastomers.

Materials horizons·2026

Same journal

Thermodynamic assessment of machine learning models for solid-state synthesis prediction.

Materials horizons·2026

Same journal

Interfacial stabilization enabled by triethyl borate for high-voltage batteries with a wide temperature range.

Materials horizons·2026

Same journal

Bioinspired edible vesicles as standardized nanoestrogens for safe bone remodeling in osteoporosis.

Materials horizons·2026

Same journal

MOF glass-based membranes: a promising platform for advanced separation.

Materials horizons·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jul 16, 2025

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

Negative differential resistance based on phase transformation.

Takashi Harumoto¹, Hiroyuki Fujiki², Ji Shi¹

¹Department of Materials Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan. harumoto.t.aa@m.titech.ac.jp.

Materials Horizons

|September 13, 2023

Summary

This summary is machine-generated.

This study introduces a new negative differential resistance (NDR) device utilizing phase transformation, expanding material choices for neuromorphic computing and memory applications. This novel approach offers a versatile method for developing advanced electronic components.

More Related Videos

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Published on: January 3, 2018

Related Experiment Videos

Last Updated: Jul 16, 2025

$In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries$

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Published on: January 3, 2018

Area of Science:

Materials Science
Condensed Matter Physics
Device Physics

Background:

Negative differential resistance (NDR) devices are crucial for neuromorphic computing and non-volatile memory.
Limited material selection for NDR devices hinders technological advancement.
Phase transformation is a common material phenomenon with untapped potential for NDR.

Purpose of the Study:

To demonstrate a novel current-controlled NDR device based on phase transformation.
To experimentally validate phase transformation as an induction method for NDR.
To expand the range of materials suitable for NDR device fabrication.

Main Methods:

Fabrication of a prototype NDR device using palladium (Pd) thin-wire.
Utilizing the phase transformation between metal-hydride and metal states.
Characterizing NDR properties through current sweeping at varying speeds.

Main Results:

Successful experimental demonstration of NDR induced by phase transformation.
NDR property exhibits strong dependence on current sweep speed.
Observed NDR shows no current polarity dependence, distinguishing it from conventional devices.
The device effectively evaluates hydrogen storage properties of metals via current sweeping.

Conclusions:

Phase transformation offers a new paradigm for designing NDR devices, significantly broadening material selection.
The developed device provides a unique approach for analyzing hydrogen storage in metals.
This work opens new avenues for both the development and application of NDR technologies.