What's the difference between plenum and vacuum?

Plenum


Definition:

  • (n.) That state in which every part of space is supposed to be full of matter; -- opposed to vacuum.

Example Sentences:

  • (1) We assembled and evaluated a low-pressure plenum system, based upon the Farman entrainer, which was adaptable to spontaneous, assisted or intermittent positive pressure ventilation (IPPV).
  • (2) Cell Biol., 91:1879, '81; Kasinsky, Mann, Lemke, and Huang: In: Chromosomal Proteins and Gene Expression, Plenum Press, New York, pp.
  • (3) The effect of the physical characteristics of the carrier gas on the output of automatic plenum vaporizers was studied.
  • (4) Airborne transfer of these bacteria was practically eliminated by nursing in single isolation rooms with plenum ventilation.
  • (5) Using S. pyogenes as a tracer organism, an examination of the importance of air-borne infection of clean wounds in the modern, plenum-ventilated operating room has been made.
  • (6) Obrist (Cardiovascular Psychophysiology: A Perspective, Plenum Press, New York, 1981) has recently argued for the superiority of contractility (e.g.
  • (7) The fan in the forced aeration process forced air into a perforated plenum beneath the compost piles.
  • (8) At this velocity the laminar-flow system, in terms of airborne bacteria measured at the wound site, was about 11 times more efficient using horizontal air-flow and 35-90 times more efficient using vertical air-flow than a plenum-ventilated operating-room.
  • (9) pp 121-145, Plenum, New York and London], we wanted to prepare specific oligonucleotides carrying O2- or O4-alkylthymidine residues.
  • (10) A long-forgotten chloroform inhaler, probably the first accurately calibrated, temperature compensatable, plenum vaporizer, is described.
  • (11) Forced-air furnace operation, along with leaky return ducts and plenums, and openings between the substructure and upper floors enhanced mixing of radon-laden substructure air throughout the rest of the building.
  • (12) Plenum, New York), that at least two lineages, from which sensory and autonomic cell types are derived respectively, are segregated early during neural crest ontogeny and have extremely different survival and trophic requirements.
  • (13) ), p. 81, Plenum Press, New York] consists of three domains: surfactant apolar tails, bound water and free water.
  • (14) Raman scattering data are consistent with a mixture of A- and Z-RNAs in 110 mM NaCl buffer at 37 degrees C. Comparison with the spectrum of Z-DNA indicates that there may be different glycosidic torsion angles in Z-RNA and Z-DNA [Tinoco, I., Jr., Cruz, P., Davis, P., Hall, K., Hardin, C. C., Mathies, R. A., Puglisi, J. D., Trulson, M. O., Johnson, W. C., & Neilson, T. (1986) in Structure and Dynamics of RNA, pp 55-68, Plenum, New York].
  • (15) Studies were made in a modified hospital ward containing 19 beds, 14 of them in the open ward, one in a window-ventilated side-room, two in rooms with partial-recirculation ventilators giving 7-10 air changes per hour, and two in self-contained isolation suites with plenum ventilation (20 air changes per hour), ultra-violet (UV) barriers at doorways and airlocks.Preliminary tests with aerosols of tracer bacteria showed that few bacteria entered the plenum or recirculation-ventilated rooms.
  • (16) Plenum Press, New York) is an important assessment instrument for use in the treatment of alcoholism and particularly in relapse prevention.
  • (17) 4): C249-C254, 1979] and mammalian (Molecular Basis of Insulin Action, New York: Plenum, 1985, p. 451-463; Am.
  • (18) Recently we reported preliminary mechanical experiments on freshly skinned rabbit psoas fibers that suggested that while almost all of the cross-bridges are attached to actin in the presence of 4 mM adenyl-5'-yl-imidodiphosphate (AMP-PNP) (ionic strength, 0.13 M), there is an equilibrium between the attached and detached states, so that, in the presence of 4 mM AMP-PNP, fibers should not be able to maintain tension (Schoenberg, et al., 1984, in Contractile Mechanisms in Muscle, Pollack and Sugi, editors., Plenum Publishing Corp., NY).
  • (19) A wound isolator was used to perform 109 total arthroplasties of the hip, while 108 similar operations were done in a plenum ventilated operating room.
  • (20) The event carries symbolic weight because Deng Xiaoping used a third plenum in 1978 to establish his vision of economic reform and opening.

Vacuum


Definition:

  • (n.) A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum.
  • (n.) The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch.

Example Sentences:

  • (1) During a single reversal trial of two 2-wk experimental periods, teats of all glands of 12 Holstein cows were subjected to a milking routine conducive to large vacuum fluctuations and flooded teat cups.
  • (2) The construction and use of a simple and inexpensive vacuum cassette for this purpose is described.
  • (3) But no one was sure, and in this information vacuum the virus reached nearby towns and crossed borders.
  • (4) Once frozen the specimen must be handled in such a way that it becomes vacuum compatible for subsequent analysis.
  • (5) Increased wear-resistance of microsurgical instruments by facing, electric spark alloying and vacuum surfacing increases the working life of the instruments by 1.5-3 times.
  • (6) It is concluded that most annulus vacuums are a degenerative phenomenon at the attachment of the annulus to bone.
  • (7) Measurements were made of their absolute sensitivity and linearity, and their response to various UVR sources was compared to that of Hilger Schwarz FT17 and FT32 vacuum compensated thermopiles.
  • (8) Monodispersed N- and C-protected linear homo-oligomethionines (n = 2- -7) are studied by measurements of circular dichroism in the vacuum ultraviolet region.
  • (9) Thirty-nine women were divided into four groups: 7 women were given 400mug 15-me-PGF2alpha extra-amniotically one hour prior to vacuum aspiration; 14 were pretreated with oral indomethacin (50 mg X4) over 24 hours; 7 were given indomethacin (50mg X 6) over 36 hours and 11 served as controls.
  • (10) The vacuum flask method of using boiling water to decontaminate soft contact lenses is better and less expensive than other ways of using moist heat and can be safely and effectively applied under most domestic circumstances.
  • (11) The media are more pervasive, seeping everywhere into the vacuum left by the shrinking of the old powers.
  • (12) It was established that the vacuum treatment of purulent wounds was effective but after surgical treatment.
  • (13) In following these procedures we opted for a somewhat different approach to applying hypochlorite, water, alcohol, and alkane; namely, eggs were placed between two Nucleopore filters, and the fluids drawn sequentially through the filters by vacuum.
  • (14) It involved preservation of unstained chromosome slides in a vacuum desiccator up to 18 months, Q-staining, destaining, and treatment in Hanks' solution, pH 5.1, at 85 degrees C for 13 min, and acridine orange staining.
  • (15) Hens from both strains performed vacuum nest-building behaviour before laying.
  • (16) • Led to the loss of talented senior NHS leaders by creating an array of new organisations, each responsible for areas such as hospitals or public health, meaning that no one is in overall charge and the NHS now suffers from a leadership vacuum.
  • (17) Use of a vacuum device on the mixed acrylic resin works as well as pressure polymerizing.
  • (18) A difference density map obtained from data on purple membrane films at 15% relative humidity in 2H2O, and the same sample after complete drying in vacuum, revealed that about eight of these protons belong to four water molecules.
  • (19) Vacuuming of carpets showed only a slight reduction in the number of recoverable microorganisms.
  • (20) Merkel herself has been accused of creating a vacuum on the right due to her consensus style of politics, which the AfD, and now Pegida – to whom the AfD has openly given its backing – have willingly managed to fill.