What's the difference between hermetic and impervious?

Hermetic


Definition:

  • (a.) Alt. of Hermetical

Example Sentences:

  • (1) In general, after recording a baseline tympanogram, mechanically created positive and negative air pressures are created in a hermetically sealed ear canal causing increased pressure on the middle ear air cushion.
  • (2) The main characteristics required of a good endodontic fillingsmaterial are its perfectly hermetic sealing of the root canal, the eventual secondary canals, and the dentine canals, against bacteria.
  • (3) The respiration rate of spore suspensions of Bacillus anthracoides 96 was assayed by mass spectrometry employing a hermetically sealed reaction vessel constructed for this purpose.
  • (4) This technique uses a device consisting of a chamber with an apperture hermetically adaptable to the orbital borders.
  • (5) It was established that the plasma scalpel can be used effectively in hermetic closure of defects in the pulmonary tissue and cleansing of the pleural cavity and operative wound; for arresting diffuse bleeding from the walls of the pleural cavity, the plasma scalpel may be used only in combination with other methods of hemostasis.
  • (6) The hospital’s chief executive, Dr Iris Minde, said at the time there was no risk of infection for other people because he was kept in a secure isolation ward specially equipped with negative pressure, hermetically sealed rooms.
  • (7) The goal of the study was to determine histological criteria of the peritonitis course in order to establish the earliest time for hermetic closure of the abdominal cavity.
  • (8) The hermetically sealed defibrillator is encased in titanium, weighs 250 g and has a volume of 145 ml.
  • (9) - A technology for the hermetic encapsulation of a pacemaker is described.
  • (10) The various symptoms in Psychosis can be brought to a selective deficit of the experience's pre classifying such as: -lack of "reversibility" troubling the course of thoughts, causing hermetism etc... -lack of "continuity" making easier experience materiality causing hallucinations.
  • (11) This method was found to allow determination of the transport function of different variants of lympho-venous and lymphonodular-venous anastomoses, their patency and hermetic capacity and detection of the functionally more advantageous variant of the operation for the introduction into practice.
  • (12) Unanesthetized rats put in the hermetic chamber breathed with a gas mixture containing 10.5% of oxygen in nitrogen during 30 and 60 min (moderate hypoxia), and 3.5% of oxygen in nitrogen for 30 min (severe hypoxia).
  • (13) Series III now totals 20 doubly hermetically sealed units, tested for up to three years (total more than 300 months or 26 years), with no pacemaker failures.
  • (14) This finding seems to be optimistic in an attempt to perform the hermetic sealing of the apical foramen.
  • (15) Into the ipsilateral canine, a cannula hermetically sealed and filled with heparinized saline solution was inserted.
  • (16) Possible sensibilization of these factors necessitated hygienic and sanitary measures (ventilation, hermetization of the equipment, aspiration, dust-cleaning, bactericidal light devices provision) which lowered the bacterial contamination level by 40-60%.
  • (17) The present system might be substantially improved by (1) a modified receiver design with a hermetic seal to prevent fluid penetration, (2) stronger, better insulated electrode wires, and (3) modifications of surgical technique and electrode type to prevent phrenic nerve damage.
  • (18) Investigations of the French physician Perier on patients after a trepanation of their skulls have shown that talking can be understood in the case of hermetically closed ears by means of the trepanation scar.
  • (19) Therefore, dentin which is exposed during dental treatment should always be sealed hermetically.
  • (20) The internal sphincter, 4 to 6 mm thick, cannot close the anal canal hermetically, not even during maximal contraction.

Impervious


Definition:

  • (a.) Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air.

Example Sentences:

  • (1) Placement of impervious knitted Dacron velour aortic grafts in baboons reproduced platelet consumption that progressively normalized over six weeks postoperatively.
  • (2) Below-zero temperatures crowned the top of the US from Idaho to Minnesota, where many roads still had an inch-thick plate of ice, polished smooth by traffic and impervious to ice-melting chemicals.
  • (3) There is all sorts of opacity which makes it easy for an employee to suffer retaliation.” Despite recent reforms to improve transparency and accountability, the organisation remains impervious to public scrutiny, with no established mechanism for freedom of information – a right which more than 100 governments around the world have enshrined in law, and is openly advocated by UN bodies such as Unesco.
  • (4) Persons suffering from major narcissistic problems generally are assumed to be impervious to time-limited treatments.
  • (5) Or you can do it at the desk with your smartphone if you can remember the website address, don’t mind the data roaming charges, can remember your national insurance number and are impervious to the long queue developing behind you”.
  • (6) On the other hand, the performance of a material that is liquid-proof is absolute--it is impenetrable and can be accurately described as impervious.
  • (7) A mathematical solution has been obtained for the indentation creep and stress-relaxation behavior of articular cartilage where the tissue is modeled as a layer of linear KLM biphasic material of thickness h bonded to an impervious, rigid bony substrate.
  • (8) This is the essence of the problem, and sadly, Festinger's words ring true today: the conviction of humans is all too often impervious to the very evidence in front of them.
  • (9) The amplitude of quantal events is impervious to marked changes in presynaptic depolarization and is not affected by experimental procedures which promote accumulation of calcium ions in the terminals.
  • (10) Many such cases prove impervious to extensive articulation therapy, yet physical management may constitute "over-correction" with undesirable sequelae.
  • (11) Purified thymidylate synthetase can be assayed radiochemically using labelled deoxyuridine monophosphate as substrate, but cells are impervious to deoxyuridine monophosphate and so intracellular thymidylate synthetase activity cannot be assayed in this way.
  • (12) Heseltine's achievements have been matched by conspicuous failures, but his self belief is almost thrillingly impregnable, making him quite impervious to any such impression.
  • (13) It is rife with secrecy, top-down managerial manipulation, impervious to any outside scrutiny, contemptuous of any questioning, and has embraced extensive surveillance and discriminatory policing of religious and racial minorities.
  • (14) These actions of YM14673 were not due to a direct interference with brain TRH binding or a nature impervious to a TRH-degrading enzyme.
  • (15) The numerous tight junctions, impervious to the tracer, are always accompanied by a profusion of microfilaments.
  • (16) A newborn baby with a large unruptured omphalocele was successfully treated by covering the sac with a skin-like polymer membrane that is flexible, elastic, and impervious to bacteria and water.
  • (17) Bateman's unspeakable imaginings are the disease of an imperviously complacent world.
  • (18) In these measurements with an impervious, plane-ended indenter, the equilibrium deformation was systematically greater than values predicted from the instant response by the linear biphasic theory.
  • (19) "He appears impervious even to input from top Afghans."
  • (20) A tractor owned by a member of Greece’s far-right Golden Dawn is parked outside of a shelter and a dozen young men from Afghanistan rest against its wheels, grateful for the shade and impervious to the protest.

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