closed system


Also found in: Dictionary, Encyclopedia, Wikipedia.

closed sys·tem

a system in which there is no exchange of material, energy, or information with the environment.

closed system

a system that does not interact with its environment.
References in periodicals archive ?
closed system - subsequently setting a new standard for safe, easy-to-use CSTDs - facilitated the establishment of new strategic partnerships with global distributors for the medical device producer.
The North American MRI systems market can be segmented based on the type (open system, closed system and straight or upright system), resolution (low-field, mid-field and high-field), applications (Neurology, cardiology, Gastroenterology and Oncology) and regionally (USA, Canada and other countries).
In a closed system, the mass may change form, but the amount would remain the same.
The closed system reduces adhesive contamination that can cause nozzle clogging, downtime and associated maintenance.
In addition, the commonality of these variabilities among closed systems and their relative influence on dependent variables were not examined.
City officials have yet to decide on policy: whether to require cable companies to open the Internet to competitors or allow cable companies to have a closed system unless outcomes of various lawsuits stop it.
It was not just that the print size diminished by several points but also there were sentences such as 'structural linguistics, structural anthropology, hermeneutics, and phenomenology mapped the topological nature of cultural systems but - tautologically - remained a closed system or a synthetic, often capricious analytical system consistent with subjectivity'.
The 2-D multiplate design of the bioreactors offers the same cell environment as standard multitray technology, but adds the benefit of a closed system for increased protection from potential contamination.
Examining my own fundamentalist faith I came to realize it was a closed system which could not account for the multiplicity and diversity of human experience.
The Opto-Matic Closed System oiler is designed for where a constant level in an oil sump must be maintained.
Because of its high cationic charge, the dendrimer additive can significantly improve runnability in closed system applications.
The goal of this study was to develop a closed system vitrification protocol that eliminates the exposure of embryos to the potential contaminants of liquid nitrogen.