(1) Tests were undertaken to study resistance to tears in laser welded dental metal alloys.
(2) The possibility of contaminating the breathing air zone with hazardous substances in manual and semi-automated welding increases with the intensity of their formation in the arc zone.
(3) Laser repair has not been widely accepted both because the effect of laser irradiation on intact nerves is not well documented, and the anastomotic strength of the weld has been inferior to suture repair.
(4) The highest combined exposure (10-fold allowable value) was that of welders of steel coated with the zinc layer, using the metal active gas welding.
(5) The concentrations of 17 trace elements (e.g., copper, cobalt, iron, manganese, chromium, silicon and magnesium) were determined in whole blood samples of 81 persons working with different welding methods on stainless steel or aluminium and 68 nonwelders.
(6) These figures represent a participation rate of 37.1% in welders and 36.7% in non-welding subjects.
(7) Weak welds occurred with no thermal damage obtained at lower irradiances: stronger welds with thermal damage confined to the weld site occurred at higher irradiances.
(8) The results support the hypothesis that mild steel welding and to a lesser extent stainless steel welding with tungsten inert gas is associated with reduced semen quality at exposure in the range of the Danish process specific threshold limit values of welding.
(9) Low-level exposure to hexavalent chromium associated with TIG stainless steel and mild steel welding do not appear to be a major hazard for human spermatogenesis.
(10) Whereas the patterns of lung cancer mortality in these results suggest that the risk of lung cancer is higher for stainless steel than mild steel welders the different level of risk for these two categories of welding exposure cannot be quantified with precision.
(11) The occurrence of reduced birthweight, preterm delivery, infant mortality, and congenital malformation was not increased among children at risk from paternal welding exposure in comparison with children not at risk.
(12) The goal of future research should be to make the procedure less operator-dependent (dye enhanced or automated welding).
(13) When nacreous shell produced by the marine oyster Pinctada maxima, used as a biomaterial in oral surgery, is implanted in human bone, new bone formation occurs, resulting in a tight welding of the bone to the nacre [16].
(14) Tensile strength, 0.2% proof stress, and percentage elongation of the welded bars were measured and compared with the corresponding values for the titanium bars as delivered and with those of brazed type-3 gold alloy bars of similar dimensions.
(15) It was proved in experiment that endothelium formation is more adequate in a vascular microsuture formed by laser welding than in the formed by the traditional thread method.
(16) 23.2% of patients with pneumoconiosis caused by electric-welding aerosol showed regress of pneumoconiosis in afterdust period.
(17) Results indicated that excellent welds can be obtained with very little loss of strength and ductility in the area of the weld joint.
(18) Dizziness, headaches, and weakness occurred among three men after short-term hydrocarbon exposure during improper welding procedures in a closed container.
(19) In periods of reconstruction of chemical enterprises, hazardous compounds concentrations may exceed MAC, they are also characterized by contamination of the skin with toxic substances, welding aerosols discharge into the working zone, and microclimate distabilization.
(20) A limited investigation was carried out of the use of glass and ceramic fibre products used as protection against welding 'batter' and oxyacetylene welding flame.
Welder
Definition:
(n.) One who welds, or unites pieces of iron, etc., by welding.
(n.) One who welds, or wields.
(n.) A manager; an actual occupant.
Example Sentences:
(1) Afterwards, the unemployed welder said: “I just didn’t like his attitude.
(2) Personnel records of over 1000 welders and electricians but only 235 caulkers and 557 platers employed at a shipyard in NE England between 1940 and 1968 were obtained and the mortality followed up to December 1982.
(3) The highest combined exposure (10-fold allowable value) was that of welders of steel coated with the zinc layer, using the metal active gas welding.
(4) A ccents from every state in the union can be heard as workers pour off the train each day in Williston, North Dakota, ready to try their luck as the welders, truck drivers, plumbers, oil rig roughnecks, frackers, water carriers and road crews required to support the booming fracking industry – but also as plumbers, lawyers, cooks, accountants and everything else it takes to build a rapidly burgeoning city.
(5) General health was good in both vocational groups and isometric strength for the welders was intermediate between that of office clerks (who had lower strength) and that of fishermen (who had higher strength, as disclosed in a previous investigation).
(6) Despite the short duration of follow-up, some occupation-cancer associations, consistently documented in others surveillance studies, have been detected in our study: lung cancer among motor vehicle drivers (SMR 143, 27 obs), metal molders (SMR 178, 8 obs), welders (SMR 241, 7 obs) and wood workers (SMR 218, 12 obs), leukemias and electrical workers (SMR 367, 6 obs).
(7) These figures represent a participation rate of 37.1% in welders and 36.7% in non-welding subjects.
(8) Arc welders' pneumoconiosis appears to be more than a benign siderosis resulting from particulate iron deposition.
(9) A cross-sectional survey was conducted to understand the extent of occupational injuries and the perception of hazards among the road-side welders in the city of Karachi.
(10) Whereas the patterns of lung cancer mortality in these results suggest that the risk of lung cancer is higher for stainless steel than mild steel welders the different level of risk for these two categories of welding exposure cannot be quantified with precision.
(11) The study consisted of 226 male construction welders who had never worked in shipyards.
(12) An arc welder of 32 years of age is presented with a random finding of miliar reticulonodular shadows in the plain film of the thorax.
(13) In 2004, Marvin Heemeyer , a 52-year-old welder and the victim of expropriation, drove a bulletproof tank into town and demolished a dozen municipal buildings before shooting himself.
(14) If you were a welder in a shipyard you were somebody, but if you were working in a shop somewhere, well …" He recalls talking to a priest from Los Angeles, who was devoted to working with the gangs of the Californian city.
(15) The observation period and the criteria for inclusion of welders varied from country to country.
(16) A study was made of the exposure of welders and cutters in Dutch industries to air pollution consisting of total particulate, chromium, nickel, copper, nitrogen oxides, ozone, carbon monoxide and other pollutants.
(17) Histological examination on lung tissue obtained from 10 symptomatic welders was performed by two certified pathologists without the knowledge of the patients' clinical condition.
(18) Injury to the ear in welders is a recognized but poorly documented entity.
(19) The study of 64 welders employed at automated work stands in the railway car factory conducted in 1989 and 1990 has shown that the psychomotor efficiency level in the examined workers (except for a few cases) was normal.
(20) The urinary aluminum concentrations rose rapidly in volunteers exposed only for 1 d and returned to the preexposure levels with an estimated half-time of about 8 h. The welders were monitored for one workweek.