What's the difference between glass and perlite?

Glass


Definition:

  • (v. t.) A hard, brittle, translucent, and commonly transparent substance, white or colored, having a conchoidal fracture, and made by fusing together sand or silica with lime, potash, soda, or lead oxide. It is used for window panes and mirrors, for articles of table and culinary use, for lenses, and various articles of ornament.
  • (v. t.) Any substance having a peculiar glassy appearance, and a conchoidal fracture, and usually produced by fusion.
  • (v. t.) Anything made of glass.
  • (v. t.) A looking-glass; a mirror.
  • (v. t.) A vessel filled with running sand for measuring time; an hourglass; and hence, the time in which such a vessel is exhausted of its sand.
  • (v. t.) A drinking vessel; a tumbler; a goblet; hence, the contents of such a vessel; especially; spirituous liquors; as, he took a glass at dinner.
  • (v. t.) An optical glass; a lens; a spyglass; -- in the plural, spectacles; as, a pair of glasses; he wears glasses.
  • (v. t.) A weatherglass; a barometer.
  • (v. t.) To reflect, as in a mirror; to mirror; -- used reflexively.
  • (v. t.) To case in glass.
  • (v. t.) To cover or furnish with glass; to glaze.
  • (v. t.) To smooth or polish anything, as leater, by rubbing it with a glass burnisher.

Example Sentences:

  • (1) The previous year, he claimed £1,415 for two new sofas, made two separate claims of £230 and £108 for new bed linen, charged £86 for a new kettle and kitchen utensils and made two separate claims, of £65 and £186, for replacement glasses and crockery.
  • (2) Human gingival fibroblasts were allowed to attach and spread on bio-glasses for 1-72 h. Unreactive silica glass and cell culture polystyrene served as controls.
  • (3) Retention of platelets from whole blood on glass beads was performed by the method of Bowie.
  • (4) Populations of lymphocytes were separated using glass and nylon wool.
  • (5) Analysis of bond values of glass ionomer added to glass ionomer indicate bond variability and low cohesive bond strength of the material.
  • (6) It was like watching somebody pouring a blue liquid into a glass, it just began filling up.
  • (7) A reference glass, five ceramic materials, and one resin-based composite were tested.
  • (8) The average repetitive yields and initial coupling of proteins spotted or blotted into PVDF membranes ranged between 84-98% and 30-108% respectively, and were comparable with the yields measured for proteins spotted onto Polybrene-coated glass fiber discs.
  • (9) Samples of rockwool and glass fibre were compared with chrysotile fibres for their capacity to hydroxylate 2-deoxyguanosine to 8-hydroxydeoxyguanosine, a reaction that is mediated by formation of hydroxyl radicals.
  • (10) Perfused or immersion-fixed epithalamic tissues, sectioned, and mounted on glass slides were processed through the avidin-biotin immunofluorescence method.
  • (11) Nango's dwellings are built on skis so can be pulled around the beach, and have a glass roof to view the northern lights.
  • (12) His office - with a floor-to-ceiling glass wall offering views over a Bradford suburb and distant moors - is devoid of knick-knacks or memorabilia.
  • (13) Three brands of glass ionomer were applied to prepared dentin surfaces of extracted human molars, after one of four treatments with polyacrylic acid.
  • (14) At the bottom is a tiny harbour where cafe Itxas Etxea – bare brick walls and wraparound glass windows – is serving txakoli, the local white wine.
  • (15) When Vladimir Putin kicks back on New Year's Eve with a glass of Russian-made champagne, and reflects on the year behind him, he is likely to feel rather pleased with himself at the way his foreign policy initiatives have gone in 2013.
  • (16) When used in snail neurones such electrodes gave very similar pHi values to those recorded simultaneously by recessed-tip glass micro-electrodes.
  • (17) Cells dissociated from 6-day rat cerebellum were seeded on glass coverslips coated with polylysine on one half and hyaluronectin on the other.
  • (18) These results confirmed that 'punctuated' labeling was not an artefact due to a distortion of the cell's shape by having been dried on glass slides.
  • (19) At one, in the Gun and Dog pub in Leeds on Tuesday, a witness described how the meeting descended into chaos when one of the rebels smashed a glass and threatened to attack Griffin supporter Mark Collett.
  • (20) Dissociated culture of adult mouse dorsal root ganglion cells on glass plates, on which grating-associated microstructures (a repetition of microgrooves [mGRV] and microsteps [mSTP] of 0.1-10 micron) are fabricated by the conventional lithographic techniques, represents a remarkable bi-directional growth of their nerve fibers in the axial direction of the grating.

Perlite


Definition:

  • (n.) Same as Pearlite.

Example Sentences:

  • (1) Groups of 21 male and 21 female mice were given diets containing 20%, 10%, 1% or 0% (control) perlite for 28 weeks.
  • (2) Of three contained N-matter tested, hydroxy proline was the best sources of N-atom for Fusarin C. Under the absence of hydroxy proline, the Fc wasn't synthesized in perlite-liquid culture medium by F. moniliforme.
  • (3) Pulmonary function was studied in 117 men employed in three plants engaged in the mining and processing of perlite.
  • (4) CP grow best in three parts sphagnum moss peat to one part perlite, although the CPS is trialling peat-free mixes using coir.
  • (5) Larvae were held in either 24-well culture plates with media plus penicillin, streptomycin sulfate, nystatin, and chloramphenicol or in small salve jars on Perlite and media plus the same antibiotics.
  • (6) There was instead a slight increase in FVC associated with years in the perlite industry.
  • (7) In summary, the population of men available for study in the major perlite-producing area of the United States, who have worked for periods up to 23 years, showed no evidence of pneumoconiosis by chest radiography or by measurement of forced vital capacity.
  • (8) The paper describes a method for isolating alkaline ribonuclease from the culture liquid Bacillus subtilis KP 349 which involved: submerged cultivation of the producer on complex and synthetic nutrient media with optimized RNase activity, acid treatment of the total culture liquid, and filtration through perlite.
  • (9) The purification process takes advantage of the novel use of perlite (a filter aid) for the simultaneous purification of PT and FHA.
  • (10) The process consists of chromatographies on perlite then on hydroxylapatite.
  • (11) Lead uptake by both species whether grown in perlite medium or on filter paper soaked with Pb (NO3)2, was correlated with lead concentration.
  • (12) Therefore, the maximum no-effect level is considered to be 1% in the diet which developed no toxic changes in any items examined in mice treated orally with perlite for 28 weeks.
  • (13) Chest roentgenograms of 240 perlite workers employed for 1 to 23 years in the industry, showed no evidence of pneumoconiosis associated with perlite exposures.
  • (14) The distribution of individuals with FVC below 80% of predicted also showed no association with duration of perlite exposure.
  • (15) Multiple regression analysis showed no significant association between years of employment in perlite and either forced vital capacity (FVC) or forced expiratory volume (FEV1).
  • (16) For researching the biosynthesis labelled Fusarin C(Fc) by Fuscarium moniliforme, a more quick and convenient method of Fusarin C production and purification were established, and a good liquid culture medium consisted of different kinds organic matters (hydroxy proline, sucrose and glycerin), inorganic salts and perlite replaced corn grit medium.

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