(n.) Calcium fluoride, a mineral of many different colors, white, yellow, purple, green, red, etc., often very beautiful, crystallizing commonly in cubes with perfect octahedral cleavage; also massive. It is used as a flux. Some varieties are used for ornamental vessels. Also called fluor spar, or simply fluor.
Example Sentences:
(1) Animal experiments showed that calcium fluorite can induce only a foreign body reaction in the lungs; the fibrous nodular lesions induced by the fluorite mine dust are due mainly to its silica component.
(2) On the basis of the investigations a complex filter made of silver plated minerals--dolomite and fluorite--has been developed.
(3) NMR analysis showed FAP or FHAP as a reaction product of fluoride uptake under all conditions, regardless of whether CaF2 was formed, unambiguously demonstrating fluorite as an additive rather than substitute form of F reactivity.
(4) The occurrence of fluorite in mysid statoliths confirms the earlier interpretations based on insufficient documentation.
(5) It was also demonstrated that having engulfed calcium fluorite, silica, or fluorite mine mixed dust, PAMs release an elastase-active substance.
(6) Use of acetyl hypo[18F]fluorite gives [18F]-4 in 60 min in 20-42% radiochemical yield.
(7) The environmental survey included measurements of the dust respirable fraction and fluorite concentration in the air.
(8) The authors suggest that the emphysematous lesion seen in autopsy material of pneumoconiosis of fluorite mine workers may be caused by calcium fluorite and silica.
(9) A compact autosynthesizer was developed and used successfully for the production of 2-deoxy-2-[18F]fluoro-D-glucose [18FDG] from gaseous acetyl hypo[18F]fluorite.
(10) X-ray diffraction patterns show that the statoliths of marine mysid crustaceans are composed of fluorite, and that this mineral is also a principal phase of the gizzard plates of some tectibranch gastropods.
(11) At pH's less than 5.0 to 6.0 the solubility product of fluorite, and not that of fluorapatite, is the governing principle under the experimental conditions used.
(12) It was demonstrated that either silica or the mixed dust of a fluorite mine can stimulate pulmonary alveolar macrophages (PAMs) to release fibrogenetic factors in vitro, but calcium fluorite cannot.
(13) Furthermore, fluorite (CaF2) makes the slag more fluid.
(14) The authors investigated the influence of working conditions--with particular reference to dust and fluorite pollution--on the epidemiology of chronic bronchitis in 197 subjects working in a fertilizer producing plant in Krakow (Poland).
(15) The pathogenicity of mixed dust from a fluorite mine was studied by animal experiments and in vitro tests.
(16) The unit has been similarly configured and programmed to synthesize 2-deoxy-2-[18F]fluoro-D-mannose (48% EOB), 3-(2'-[18F]fluoroethyl)spiperone (29% EOB), and [18F]fluoroacetate (66% EOB) from aqueous [18F]-fluoride ion, and 2-[18F]FDG from gaseous acetyl hypo[18F]fluorite (20% EOB).
(17) All sample fumes from low hydrogen welding in several atmospheric conditions contained fluorite (CaF2).
Manufacture
Definition:
(n.) The operation of making wares or any products by hand, by machinery, or by other agency.
(n.) Anything made from raw materials by the hand, by machinery, or by art, as cloths, iron utensils, shoes, machinery, saddlery, etc.
(v. t.) To make (wares or other products) by hand, by machinery, or by other agency; as, to manufacture cloth, nails, glass, etc.
(v. t.) To work, as raw or partly wrought materials, into suitable forms for use; as, to manufacture wool, cotton, silk, or iron.
(v. i.) To be employed in manufacturing something.
Example Sentences:
(1) The recent rise in manufacturing has been welcomed by George Osborne as a sign that his economic policies are bearing fruit.
(2) Hoursoglou thinks a shortage of skilled people with a good grounding in core subjects such as maths and science is a potential problem for all manufacturers.
(3) The manufacturers, British Aerospace describe it as a "single-seat, radar equipped, lightweight, multi-role combat aircraft, providing comprehensive air defence and ground attack capability".
(4) Car manufacturers, for example, are not allowed to insist that buyers only get their car serviced by them.
(5) But late last month, Amisom pushed them out of Afgoye, a strategic stronghold 30km from Mogadishu, where Amisom officials say the militants used to manufacture explosives used in attacks on the capital.
(6) While there has been almost no political reform during their terms of office, there have been several ambitious steps forward in terms of environmental policy: anti-desertification campaigns; tree planting; an environmental transparency law; adoption of carbon targets; eco-services compensation; eco accounting; caps on water; lower economic growth targets; the 12th Five-Year Plan; debate and increased monitoring of PM2.5 [fine particulate matter] and huge investments in eco-cities, "clean car" manufacturing, public transport, energy-saving devices and renewable technology.
(7) The antibacterial effect of lysozyme manufactured in the USSR was studied with respect to 1496 pathogenic strains of different microbial species.
(8) This is welcome news but it needs to be borne in mind that the manufacturing sector is still far from racing ahead and serious doubts remain about the strength of demand for manufactured goods over the medium term, particularly once stimulative measures start being withdrawn.
(9) After contributions from other investors, she estimates the fund will have between $80m to $100m for projects in infrastructure, health, manufacturing and education.
(10) In March, the independent manufacturer of a forthcoming VR gaming headset, the Oculus Rift, was bought by Facebook for $2bn.
(11) We conclude that the use of the multi-point calibration procedure presented in this article (based on calibration according to the instructions of the manufacturer and NCCLS EP-9P) greatly improves the intra-laboratory comparability and therefore should be part of multi-centre evaluations.
(12) The orchestrated round of warnings from the Obama administration did not impress a coterie of senior Republicans who were similarly paraded on the talk shows, blaming the White House for having brought the country to the brink of yet another "manufactured crisis".
(13) British manufacturing increased by 1.3%, with industrial production overall up by 0.8%.
(14) Trump might claim that the loss of manufacturing jobs or the influx of illegal immigrants from Mexico is a national security crisis that justifies his invocation of this law, and imposition of the tariff.
(15) The effect of different substances partly used as preservatives for the blood storage and at different stages of manufacturing of human blood preparations on the dynamics of nonenzymatic deamidation of commercial protein preparations and on their heat stability was being studied.
(16) The air entrainment devices from oxygen masks of four manufacturers (Henleys Medical Supplies Ltd, Vickers Medical, Intersurgical Ltd, C R Bard International Ltd) were studied.
(17) Evaluation of lymphocyte phenotype frequencies, functional responses, serum immunoglobulin levels, and autoantibodies was completed for 38 individuals (i.e., 10 families) who were exposed to pentachlorophenol (PCP) in manufacturer-treated log houses.
(18) Ninety pharmacists are employed in 13 hospital pharmacies; half of the pharmacists are occupied bb drug product manufacturing.
(19) Trawling through the private telephone conversations of royals, politicians and celebrities in the hope of picking up scandalous gossip is not seen as legitimate news gathering and the techniques of entrapment which led to the recent Pakistani match-fixing scandal , although grudgingly admired in this particular case, are derided as manufacturing the news.
(20) A certain number of parameters involved in the manufacture, control and use of an efficacious vaccine against foot-and-mouth disease have been studied.