(v. t.) To plate or cover with a coating of metal, usually silver, nickel, or gold, by means of electrolysis.
Example Sentences:
(1) 14 (38%) of 37 chrome platers in 17 chrome electroplating factories surveyed had occupational contact dermatitis, chrome ulcers, or both.
(2) In conclusion, the finding that adenomas and adenocarcinomas were observed in mice exposed to chromic acid mist suggests the need to give careful attention to the possibility of respiratory cancers in chromium electroplating workers.
(3) The study tested the feasibility of using urinary nickel (Ni-U) as a biological indicator to assess exposure to soluble nickel compounds in electroplating departments at concentrations well below the current TLV-TWA.
(4) Nickel subsulfide (Ni3S2), nickel sulfate (NiSO4), nickel chloride (NiCl2), and nickel oxide (NiO), are four compounds encountered by workers in the nickel-refining and electroplating industries.
(5) The relationship between atmospheric exposure to nickel and urine and plasma nickel concentrations was studied by following four workers from an electroplating shop for one work week by daily measurements of the nickel concentration in workroom air with personal samplers and nickel concentrations in blood and urine samples collected before and after the work shift.
(6) With regard to individual occupations too, the medical staff showed the highest incidence (20.8 per cent), followed by bricklayers and concrete workers (8.6 per cent), electroplating workers (6.7 per cent) and milkers (6.4 per cent).
(7) Electroplated samples are counted in any one of 96 detectors.
(8) Finally, Ni was electroplated onto copper discs from an ammonium sulfate medium at high pH.
(9) The effect of electroplating factory effluent in different concentrations (viz., 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 2.5, 3.0, and 4.0%) on the germination and growth of hyacinth beans (Dolichos lablab) and mustard seeds (Brassica compestris) was studied.
(10) It was observed that the workers engaged in non-dusty occupations such as brass sheet cutting and engraving showed the lowest prevalence of the disease (5.0%) while those engaged in the dusty occupations viz., casting, soldering, electroplating and polishing showed the highest prevalence (12.0%).
(11) Nuclides of Am, Pu and U are separated from the sample matrix by anion exchange and are electroplated on a stainless steel disc (Gautier and Gladney 1986).
(12) Adhesions of 4-META resin to three other surface states--as-polished, oxidized at high temperature, and electroplated tin--were also performed for comparison with the adhesion on Adlloy-modified surfaces.
(13) The plates, made by electroplating a thin layer of copper onto flat brass shims, were gripped between the thumb and the index finger.
(14) Nickel subsulfide (Ni3S2), nickel sulfate (NiSO4), and nickel oxide (NiO) are encountered occupationally in the nickel refining and electroplating industries, with inhalation being a common route of exposure.
(15) In an attempt to obtain information about structural changes related to electrical activity in Electrophorus electroplates, we have determined the size and time course of the changes in light scattering and in bire-fringence that occur during and after the discharge of the electric organ.2.
(16) radiation in respiratory carcinogenesis, the cytotoxic and transforming potency of 5.5 Me V alpha-particles from electroplated sources of 238Pu were determined using primary cultures of rat tracheal epithelial cells.
(17) Efficacy of routine treatment and lateral electroplating was comparatively assessed in 60 females with a history of habitual abortion.
(18) The processes were open tank and enclosed tank degreasing with trichloroethylene (TCE), chromium conversion coating, and chromium electroplating.
(19) Elevated concentrations of nickel are observed in urine specimens from nickel-exposed workers, including nickel electroplating workers (mean = 27 micrograms per L, range = 3.1 to 82 micrograms per L, N = 19) and nickel battery workers (mean = 32 micrograms per L, range = 2.8 to 103 micrograms per L, N = 7).
(20) Determinations of urinary chromium on 26 workers from 6 chromium electroplating workshops are presented and discussed in relation with results of airborne chromium.
Zinc
Definition:
(n.) An abundant element of the magnesium-cadmium group, extracted principally from the minerals zinc blende, smithsonite, calamine, and franklinite, as an easily fusible bluish white metal, which is malleable, especially when heated. It is not easily oxidized in moist air, and hence is used for sheeting, coating galvanized iron, etc. It is used in making brass, britannia, and other alloys, and is also largely consumed in electric batteries. Symbol Zn. Atomic weight 64.9.
(v. t.) To coat with zinc; to galvanize.
Example Sentences:
(1) Zinc in plasma and urine and serum albumin and alpha 2-macroglobulin were measured in 48 patients with burns.
(2) Adult nonpregnant female rhesus monkeys fed purified diets containing 100 or 4 ppm zinc for 1 yr were mated then studied through midgestation.
(3) Cellular aging is accompanied by increased cellular permeability to zinc(II).
(4) Cytosolic zinc was eluted from a Sephadex G-75 column in the molecular weight region associated with metallothionein.
(5) Serum levels of vitamins A and E, zinc and iron were determined in healthy control subjects and lepromatous leprosy patients belonging to an eastern state of India.
(6) Zinc alpha-2 glycoprotein (ZnGP) was measured in human breast microcysts, breast secretions, breast cyst fluid and serum.
(7) The absorption of zinc from meals based on 60 g of rye, barley, oatmeal, triticale or whole wheat was studied by use of extrinsic labelling with 65Zn and measurement of the whole-body retention of the radionuclide.
(8) In cirrhosis there was a decrease, of zinc (-40%) albumin (-38%) and of activity of ALA D (-48%) and an increase in blood lead (+80%).
(9) The plasma zinc level was significantly lower at the time of onset of zinc deficiency than in normal subjects, before the procedure of TPN, or at the time of symptomatic relief achieved by administration of zinc.
(10) In comparison with animals fed zinc-containing diets, mice fed zinc-deficient diets had reduced numbers of T cells and T-cell subsets, reduced proliferation to mitogens and specific antigen, and a decreased production of interleukin 2 (IL-2), but the number and affinity of IL-2 receptors were not affected.
(11) The contents of magnesium, potassium and zinc plasma did not correlate with the corresponding concentrations in skeletal muscle or circulating blood cells, as investigated in healthy controls, diabetics and in all subjects together, implying that the plasma concentrations are not useful in the assessment of electrolyte status.
(12) A positive association was observed between the prevalence of fatigue, mild abdominal pain, and arthralgia and the blood lead (PbB), urinary lead (PbU), and zinc protoporphyrin (ZPP) levels.
(13) Perinatal brain damage produced by early zinc deficiency followed by rehabilitation with adequate zinc appears to be long term, maybe permanent.
(14) The results of these investigations suggest that there is a biochemically significant decrease in the bioavailability of zinc when these artificial formulas are used.
(15) Each repeat unit contains thirty amino acids and is thought to bind a zinc atom using two cysteines and two histidines as ligands.
(16) The same ratio occurred when zinc (0 to 0.6 mM in citrate buffer) was added to semen or washed spermatozoa.
(17) In the present study, maternal and fetal zinc (Zn), copper (Cu), manganese (Mn), iron (Fe), magnesium (Mg), and calcium (Ca) status has been studied in Sprague-Dawley (SD) and Wistar rats.
(18) Iron, zinc, cadmium, cobalt, and lead do not interfere.
(19) The addition of zinc to the cell culture medium then led to the expression of hepatitis D antigen associated with, in the short term, a significant reduction in the rate of RNA but not DNA synthesis and, in the longer term, cell death.
(20) In order to determine the specific action of cadmium on bone metabolism, the effect of cadmium on alkaline phosphatase activity, a marker enzyme of osteoblasts, was compared with that of other divalent heavy metal ions, i.e., zinc, manganese, lead, copper, nickel and mercury (10 microM each), using cloned osteoblast-like cells, MC3T3-E1.