Tile workers are exposed to dust particles and are susceptible to multiple pulmonary complications. Problems like asthma, chronic obstructive pulmonary symptoms, and silicosis are more common among them. As there are many tile factories in Yazd, we decided to evaluate the respiratory symptoms and lung capacities in these workers and compare them with controls. This study included 176 tile and c...

In ceramic production, vast amount of green process waste is created. Green in other words, sludge creates a big environmental problem. It can create water pollution as well problems having physical change the stored area., Therefore, use raw material vitally important. The research programme was carried out to wastes materials recipes various products Kaleseramik Research and Development Cente...

Super MD Tile Factory is an individual business that engaged in the production of tiles small quantities. One products produced Mantili tile with make to stock and order systems. Defective process cannot be completely avoided. The company sets a tolerance for defective production, which 4.44%, but practice can reach 8%. Types defects such as porous, cracked, broken, cracked tiles, charred.The w...

Background & Aims of the Study: Respiratory diseases are considered as the most important occupational diseases and the absence in the workplaces. Workers in the tile and ceramic industries are exposed to high concentrations of dusts. The main aim of the present study was to evaluate the pulmonary reactions and pulmonary function tests associated with exposure to dust among workers ...

noise is a type of energy when exceeds t.l.v., it can cause hearing loss, especially in working environments. as factory workers are at high risk of noise, the present study evaluated the bistoon tile factory workers hearing losses. in this analytical cross-sectional study, workers’ noise leq were calculated according to i.s.o. standards and their audiometry results were derived from their heal...

A new aperiodic tile set containing only 13 tiles over 5 colors is presented. Its construction is based on a technique recently developed by J. Kari. The tilings simulate behavior of sequential machines that multiply real numbers in balanced representations by real constants.