ejection

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ejection

[ē′jek·shən]
(engineering)
The process of removing a molding from a mold impression by mechanical means, by hand, or by compressed air.
(ordnance)
The expelling, by the ejector, of the empty cartridge case from small arms and rapid-fire guns.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ejection

i. Escaping from an aircraft in an emergency by means of an independently propelled seat or capsule.
ii. In air armament, the process of forcefully separating an aircraft store from an aircraft to achieve satisfactory separation. This is normally done by an electromagnet release unit (EMRU), a pneumatic release unit, or a pyrocartridge(s).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
In this series lower ejection fraction and the presence of cardiogenic shock were found to be independent risk factors of early mortality.
This leads to interventricular and left intraventricular asynchrony, and reduced cardiac output [3], causing not only worsened heart failure symptoms in patients with impaired left ventricular ejection fraction prior to pacemaker implant [4], but also new onset heart failure in approximately 20% of patients [5], particularly in patients with high percentage of ventricular pacing [6].
Table-I: Demographic and clinical characteristics of acute heart failure patients with reduced and preserved ejection fraction.
De Keulenaer, "Cardiac endothelium-myocyte interaction: clinical opportunities for new heart failure therapies regardless of ejection fraction," European Heart Journal, vol.
Analysis by ROC curve produced an area under the curve of 0.945 (95% CI0.875 to 0.982) at a cut-off left ventricular ejection fraction of 50% (Fig.
In addition, right ventricular ejection fraction (RVEF) can also be calculated using this technique, without the need for a first pass study.
"There are additional trials that are in process now with even more preserved ejection fractions looking for benefits of ICDs."
"Most of the people in our study don't have a low ejection fraction, but they still died of sudden cardiac arrest, which leads me to suggest that we need to take another look at the guidelines."
In addition, troponin-ejection fraction product (TEFP) obtained by multiplying peak troponin by ejection fraction obtained by echocardiography in our case was 156,000 and it does not fall in the range for stress cardiomyopathy.
Nowadays, diastolic heart failure is referred to as heart failure with preserved ejection fraction (HFpEF), whereas systolic heart failure is referred to as heart failure with reduced ejection fraction (HFrEF).
Researchers found that ICDs were given to 12 (13.0%; 95% CI 6.1%-19.9%) of 92 patients who met the eligibility criteria of left ventricular ejection fraction (LVEF) of 35%.