(n.) The part of a printing press which presses the paper against the type and by which the impression is made.
(n.) Hence, an analogous part of a typewriter, on which the paper rests to receive an impression.
(n.) The movable table of a machine tool, as a planer, on which the work is fastened, and presented to the action of the tool; -- also called table.
Example Sentences:
(1) The incidence of damage immediately after freeze-drying was greater for cells dried at the higher platen temperature and was influenced by the composition of the menstruum in which the cells were dried.
(2) These modifications involve the use of a radiused edge on the dimpling tool, a rubber O-ring on the polishing tool, and not rotating the sample platen during polishing.
(3) The material was cured in certain thicknesses in the heat platen press and by boiling without porosity.
(4) This dependency on cross-sectional area is probably due to friction-induced stress inhomogeneity at the platen-specimen interface.
(5) Salmonella typhimurium survived freeze-drying at a platen temperature of 120 F (48.9 C) and also, though to a much lesser degree, at 160 F (82.6 C).
(6) The coupling DC amplifier provides a DC offset voltage at all gain settings of the pantograph which is sufficient to reposition the pen of the X-Y plotter in the center of the plotter's platen, regardless of the location of the specimen on the microscope slide.
(7) A finite element analysis is used to study a previously unresolved issue of the effects of platen-specimen friction on the response of the unconfined compression test; effects of platen permeability are also determined.
(8) This enhancement of material properties at the highest strain rate was due primarily to the restricted viscous flow of marrow through the platen rather than the flow through the pores of the trabecular bone.
(9) Trousers-shaped specimens were prepared between two platens.
(10) An increase in trabecular orientation toward the loaded platens was observed, and a statistically significant decrease in connectivity was documented.
(11) This model utilized an implantable hydraulic device incorporating five loading cylinders and platens in direct contact with an exposed plane of trabecular bone.
(12) After freeze-drying for 8 hr at a platen temperature of 49 C and rehydration with a mineral salts medium, survival of the cells was 0.6%.
(13) The value of the heat platen press as a time-saving device and its applications in a maxillofacial laboratory were discussed.
(14) Control thicknesses of impression material were first formed between the measuring platens of a micrometer, and light transmission values (relative reflections) were measured through these control thicknesses of impression material held against air-abraded, noncast gold alloy.
(15) According to Drouzy, the key inspiration for Gertrud, based on a play by Hjalmar Söderberg, was Dreyer's discovery at 73 that Maria von Platen, Gertrud's real-life counterpart, spent the last years of her life in a house only 10 miles from the site of his own conception.
(16) A porous platen above the specimens allowed the escape of marrow during testing.
(17) In a second experimental condition, a platen-fixed LED matrix fixation target was illuminated 0.91 m vertically above the subject.
(18) An investigation was designed and carried out to compare methyl acrylic resin processed by three methods--boiling, in the heat platen press, and a 9 hour, 75 degrees C cure.
(19) The modifications to the dimpling and polishing tools allow more control of the geometry of the dimple, while not rotating the sample platen allows a thinner sample to be produced and permits the use of the sample translation micrometers to shift the location of the thinned area during polishing.
Tympan
Definition:
(n.) A drum.
(n.) A panel; a tympanum.
(n.) A frame covered with parchment or cloth, on which the blank sheets are put, in order to be laid on the form to be impressed.
Example Sentences:
(1) Subsequently, the inflammatory reaction diminishes, as can be seen on smears from tympanic effusions.
(2) Deep body temperature was recorded from the tympanic membrane, oral cavity, esophagus, and rectum.
(3) Microotoscopy showed a blue pulsating mass behind the tympanic membrane.
(4) Both tympanic and nontympanic pathways of sound reception are utilized by anuran amphibians.
(5) A clinico-pathological study of 10 cases (including histopathology) indicates that occult cholesteatoma is neither a congenital cholesteatoma nor an epidermoid cyst, originating in the attic through a melaplastic process of middle ear mucosa behind an intact tympanic membrane.
(6) An artist's rendition of the entire normal gerbil tympanic membrane is presented.
(7) The core temperature is taken from the rectum, the nasopharynx or tympanic membrane, and the peripheral temperature from the great toe.
(8) (2) Tympanometrically measured middle ear pressure (MEP) was almost equivalent to the actual MEP recorded by a manometer when the tympanic membrane was normal.
(9) These complications are of much higher frequency than after tympanoplasty with autograft, and indications for tympano-ossicular homografts are now limited to total tympanic destruction with absence of handle of malleus.
(10) Definitive degeneration and atrophic type changes were seen in all the parotid fragments removed six months after selective neurectomy of the tympanic plexus.
(11) During juvenile and adult life stages, the process becomes somewhat removed from the fenestra for obvious reasons, but at a gape of about 40 to 50 degrees it inevitably must touch the "inferior tympanic membrane" and possibly also the tympanic ring.
(12) On the other hand, the ciliary activity of the middle ear lining displays a varying pattern of reaction according to the locations within the tympanic cavity.
(13) Tympanometric findings could more often correctly suggest reduced tympanic membrane mobility than did otomicroscopy, but both methods gave an equally good indication of middle ear effusion.
(14) Ventilatory conditions, or the existence of soft tissue density, were evaluated by HRCT at such locations as the supratubal recess, mesotympanum, anterior and posterior parts of the tympanic isthmus, epitympanum, and mastoid antrum.
(15) Also the tympanic nerve and its course on the promontorium have been estimated.
(16) In this second report a sizable proportion of the men reported a history of otitis or otorrhea but had normal tympanic membranes.
(17) Above 5 kHz discrete resonances are observed, and the response varies strongly with position on the tympanic membrane.
(18) One problem remains: permanent aeration of the new tympanic cavity.
(19) Significant improvements in measurements of ear function also allow us to be more precise in the diagnoses of otosclerosis, perforation of the tympanic membrane, ossicular discontinuity, facial nerve dysfunction, and brain stem disorders.
(20) 1) When pressure was applied to the tympanic cavity, the curvature of the TM became small under negative pressure and large under positive pressure, with the displacement being greater under positive pressure.