نتایج جستجو برای: aluminum foundry practice
تعداد نتایج: 438218 فیلتر نتایج به سال:
We examined a group of 105 workers from a primary aluminum plant for the presence of polycyclic aromatic hydrocarbon (PAH)-DNA adducts in their WBC and 1-hydroxypyrene in their urine. Workers were recruited from five job categories with different PAH exposure: the anode factory; the bake oven; and the electrolysis and the pot-relining departments. Unexposed workers from the foundry department s...
Nowdays, motorcycles become a primary need for people, especially in Indonesia. This has resulted the increasing number of motorcycle spare parts waste. The waste is form components such as wheels, tires, drums, canvas, gear, chains and pistons many others. Until now, community not used this waste, use raw material casting connecting rods. Connecting rod itself component made aluminum. In study...
An increased lung cancer risk has been described among foundry workers. Polycyclic aromatic hydrocarbons (PAHs) and silica are possible aetiological factors. This study describes a urinary PAH metabolite, 1-hydroxypyrene (hpU), as well as the degree of cytochrome P450IA2 activity/induction as reflected by the urinary caffeine ratio (IA2) in 45 foundry workers and 52 controls; IA2 was defined as...
We discuss the design, fabrication, and testing of prototype horn-coupled, lumped-element kinetic inductance detectors (LEKIDs) designed for cosmic microwave background studies. The LEKIDs are made from a thin aluminum film deposited on a silicon wafer and patterned using standard photolithographic techniques at STAR Cryoelectronics, a commercial device foundry. We fabricated 20-element arrays,...
Ontologies built using OBO Foundry principles are advised to include both formal (logical) definitions and natural language definitions. Depending on the effort, one or the other can be underrepresented. Possible explanations to this bottleneck are the high cost of producing well-written definitions; an insufficient understanding of the nature of natural language definitions or of logic; the la...
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