Mandelic acid (MA) is an important metabolite of styrene. In humans, measurement of its concentration in urine provides an important assessment of the overall level of styrene exposure in workers of the reinforced plastic manufacturing industry. The aim of our study was to investigate in these workers the relationship between MA concentration and styrene exposure time and intensity as well as i...

Abstract The longitudinal structure is needed to hold the boat, especially in sagging and hogging conditions. Modifying a system using laminating steel fiber required increase strength reduce weight. This study uses 7.8 m ship modified from conventional hybrid construction. finite element method compared structures under conditions evaluate strength. In conditions, maximum stress boats 16.68 MP...

In a surface-mounted sintered NdFeB permanent-magnet generator, the magnets are usually thin (typically 4 mm), and hence the armature reaction, due to the time harmonics in the stator currents, is high. NdFeB magnets are conducting (resistivity typically 1.6 μΩm) and experience eddy-current losses. Therefore, the combined eddy-current losses in the NdFeB magnets and a solid iron rotor may becom...