(v. t.) Any combination or compound of metals fused together; a mixture of metals; for example, brass, which is an alloy of copper and zinc. But when mercury is one of the metals, the compound is called an amalgam.
(v. t.) The quality, or comparative purity, of gold or silver; fineness.
(v. t.) A baser metal mixed with a finer.
(v. t.) Admixture of anything which lessens the value or detracts from; as, no happiness is without alloy.
(v. t.) To reduce the purity of by mixing with a less valuable substance; as, to alloy gold with silver or copper, or silver with copper.
(v. t.) To mix, as metals, so as to form a compound.
(v. t.) To abate, impair, or debase by mixture; to allay; as, to alloy pleasure with misfortunes.
(v. t.) To form a metallic compound.
Example Sentences:
(1) Sulphides, which possibly form on silver alloys, showed cytotoxicity.
(2) The influence of mucin on the corrosion behaviour of seven typical dental casting alloys was investigated.
(3) Tests were undertaken to study resistance to tears in laser welded dental metal alloys.
(4) 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.
(5) Pitting corrosion was seen on low-resistant Ni-Cr alloys, which had less Cr content.
(6) One alloy tested contained 5% indium, and the second alloy contained 10% indium.
(7) Such failures can easily be avoided by using only one alloy with good passivation characteristics instead of different alloys.
(8) The investment containing 2.0 wt% NbC showed nearly the same casting accuracy for Ni-Cr alloys for metal-ceramic restoration as the commercial phosphate-bonded investment.
(9) It was determined that the Ag-rich phase of Ag-Pd-Cu-Au alloy was preferentially attacked to form Ag2S corrosion product.
(10) The current literature, for the most part, cites the use of noble alloys as controls for trials of alternative materials.
(11) Titanium-nickel alloy composed of 50% by weight of each metal has unique thermal shape-memory properties, with a transition temperature of 20 degrees C. Each stent consists of one wire with a diameter of 0.9 mm.
(12) Irrespective of the coated dental alloy, the coatings have pores, through which the electrolyte is in contact with the substrate material.
(13) Forty BIAS femoral stems had heads made of Co-base F 75 alloy and 18 Gustilo-Kyle femoral stems had Ti6A14V alloy heads.
(14) The occurrence of marginal spaces between the resin facing and gold alloy framework in 176 crowns and bridge retainers was studied.
(15) Base metal alloys, principally made of nickel, chromium, and beryllium have gained widespread usage, especially in the United States, due to their lower cost and higher mechanical properties.
(16) The amounts of polyethylene and methylmethacrylate debris and the histological reactions in the tissues corresponded closely with those reported in earlier studies of total hip prostheses made of stainless steel or cobalt-chromium alloy.
(17) The bond strength of the specimens brazed with the non-precious alloy was largely unaffected.
(18) The traditional alloys used as metal bases for fixed partial dentures are accompanied by various problems such as corrosion, allergy, toxicity, casting, and preparation for both patient and prosthodontist and in magnetic resonance imaging for diagnosis.
(19) The results revealed that experimental alloys inherited high early and final strength values without any significant change in their microstructure.
(20) The surface of dental alloys, on which such a composite plating was made, was analyzed by ESCA.
Refine
Definition:
(v. t.) To reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy; to separate from extraneous matter; to purify; to defecate; as, to refine gold or silver; to refine iron; to refine wine or sugar.
(v. t.) To purify from what is gross, coarse, vulgar, inelegant, low, and the like; to make elegant or exellent; to polish; as, to refine the manners, the language, the style, the taste, the intellect, or the moral feelings.
(v. i.) To become pure; to be cleared of feculent matter.
(v. i.) To improve in accuracy, delicacy, or excellence.
(v. i.) To affect nicety or subtilty in thought or language.
Example Sentences:
(1) The patients had a high AP, consumed more alcohol, were more well-fed, older and consumed more refined carbohydrates per 1 kg bw and less cholesterol and vegetable protein.
(2) After restrained least-squares refinement of the enzyme-substrate complex with the riboflavin omitted from the model, additional electron density appeared near the pyrophosphate, which indicated the presence of an ADPR molecule in the FAD binding site of PHBH.
(3) Well-refined x-ray structures of the liganded forms of the wild-type and a mutant protein isolated from a strain defective in chemotaxis but fully competent in transport have provided a molecular view of the sugar-binding site and of a site for interacting with the Trg transmembrane signal transducer.
(4) To meet these prerequisites we have introduced some technical refinements: (1) computer-controlled rectilinear translations of the target in combination with different angular positions of the source and (2) computer-controlled rotations of the target around a vertical axis in combination with different angular positions of the source.
(5) Percutaneous transhepatic biliary drainage (PTBD) was conceptualized more than 35 years ago, but its clinical application only flourished in the past 10 years after a number of technical refinements.
(6) In 1984 the press-fit condylar knee was first introduced and was intended to provide a condylar knee system primarily for posterior cruciate retention that addressed refinements in metallurgy, prosthetic geometry and sizing, cementless fixation, inventory management, and instrumentation.
(7) Obviously, the sheer number of lasers being used both clinically and experimentally indicates a great potential for further advancement and refinement in technique and surgical outcomes.
(8) Phases from x-ray structure factors (R = 0.43) computed from this model were then used in the calculation of another electron density map against which the model was further refined.
(9) Staging classifications are being refined to reflect increasing knowledge of important prognostic indicators, e.g., absence or presence of lymph node involvement, pattern of lymph node involvement, and absence or presence of visceral disease.
(10) The ordered aspect of the genetic code table makes this result a plausible starting point for studies of the origin and evolution of the genetic code: these could include, besides a more refined optimization principle at the logical level, some effects more directly related to the physico-chemical context, and the construction of realistic models incorporating both aspects.
(11) The structure of Mn(III) superoxide dismutase (Mn(III)SOD) from Thermus thermophilus, a tetramer of chains 203 residues in length, has been refined by restrained least-squares methods.
(12) Based on the refined atomic coordinates of the tRNAphe in the orthorhombic crystal, on the recent advances in the distance dependence of the ring-current magnetic field effects and on the adopted values for the isolated hydrogen-bonded NH resonances, a computed spectrum consisting of 23 protons was constructed.
(13) It can be used as a simple screening procedure to help determine which of many possible anthelmintic control strategies should be selected for more detailed examination in the field, and it provides a theoretical framework within which ideas concerning the epidemiology of parasitic gastroenteritis can be assessed and refined.
(14) The advances in lid and orbital surgery are due to the improvements made in diagnostic equipment and to technical refinements.
(15) The group’s refining business performed better than expected, more than doubling profit to $2.2bn from $1bn.
(16) They also suggest that both the migration of cortical neurons on glia and the refinement of the mapping between the peripheral whisker field and its cortical representation may depend upon the distribution of substrate adhesion molecules.
(17) Thus the present study gives support for a protective effect associated with a fiber-rich or vegetable-rich diet, while it indicates that frequent consumption of refined starchy foods, eggs and fat-rich foods such as cheese and red meat is a risk factor for colo-rectal cancer.
(18) Synthesis and discussion is focused on five major areas in which gerontological continuity and change are evidenced: 1) transformation of basic themes over time; 2) gerontology's identity crisis; 3) the social ideology of gerontology; 4) evolution and refinement of gerontological ideas and methods; and 5) temporal frameworks.
(19) The course content and format were refined after 11 pharmacists completed a pilot program.
(20) This has led to important advances in our understanding of the mechanism of axonal guidance, the physiology of neurotrophic factors and the establishment and refinement of neural connections.