Number Of Turns

The number of turns is the count of wire loops in a coil or winding, a key parameter in electromagnetism that determines how strongly the winding couples electrical current and magnetic fields. When current flows through a coil, each turn contributes to the magnetic field, so the field strength generally increases with turn count; in transformers, the ratio of turns between primary and secondary windings controls voltage transformation. This quantity also affects inductance, magnetic flux linkage, and the operating behavior of motors, generators, solenoids, and inductors. Understanding the number of turns helps researchers and engineers design circuits and electromagnetic devices with predictable performance.

Number Of Turns - Related Videos

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JoVE Journal - Medicine
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Myocardial Infarction and Functional Outcome Assessment in Pigs

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Cited by 52 •

2014

This protocol describes the porcine myocardial infarction (MI) model using a 90 min closed-chest coronary balloon occlusion of the left anterior descending artery (LAD), followed by reperfusion. Furthermore, the protocol for several outcome parameters, such as cardiac function, hemodynamics, microvascular resistance, and infarct size, are also presented.

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JoVE Journal - Medicine

Normothermic Ex Situ Heart Perfusion in Working Mode: Assessment of Cardiac Function and Metabolism

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Cited by 22 •

2019

Normothermic ex situ heart perfusion (ESHP), preserves the heart in a beating, semi-physiologic state. When performed in a working mode, ESHP provides the opportunity to perform sophisticated assessments of donor heart function and organ viability. Here, we describe our method for myocardial performance evaluation during ESHP.

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JoVE Journal - Medicine
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Generation of Comprehensive Thoracic Oncology Database - Tool for Translational Research

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Cited by 5 •

2011

A thoracic oncology database was developed to serve as a comprehensive repository for clinical and laboratory data for the purposes of translational research. The database will serve translational cancer researchers within the Thoracic Oncology Research Program. This database is adaptable to other cancer models, as well as other human diseases.

Transposon Mediated Integration of Plasmid DNA into the Subventricular Zone of Neonatal Mice to Generate Novel Models of Glioblastoma

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Cited by 44 •

2015

Here we describe an efficient and versatile protocol to induce, monitor and analyze novel glioblastomas (GBM) using transposon DNA injected into the ventricles of neonatal mice. Cells of the subventricular zone, which take up the plasmid, transform, proliferate and generate tumors with histo-pathological characteristics of human GBM.

Autologous Blood Injection to Model Spontaneous Intracerebral Hemorrhage in Mice

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Cited by 28 •

2011

The autologous blood injection model of intracerebral hemorrhage in mice described in this protocol uses the double injection technique to minimize risk of blood reflux up the needle track, no anticoagulants in the pumping system, and eliminates all dead space and expandable tubing in the system.

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