منابع مشابه
Risk assessment of mortality from silicosis and lung cancer Workers in machine factories and traditional brick production workshops with crystalline silica
Introduction: Exposure to dust is an essential factor in the brick production industry. Determining the mortality rate from silicosis and lung cancer is very important in exposure to crystalline silica dust. Therefore, this study was conducted to risk assessment of workers in machine factories and traditional brick production workshops. Materials and Methods: This cross-sectional study was con...
متن کاملStrings , and Meson Factories
Spontaneous breaking of CPT is possible in string theory. We show that it can arise at a level within reach of experiments at meson factories currently being built or designed. For φ, B, and τ-charm factories, we discuss the likely experimental string signatures and provide estimates of the bounds that might be attained in these machines.
متن کاملWorkshops and Short Courses
Electromagnetic fields from low frequency to millimeter wave are presenting lots of interests for biomedical applications. Among them is emerging the possibility to non-invasively investigate the living at various levels from tissue/organ to cellular, with the objective to early diagnose diseases and improve the efficiency of prognostic and therapies. This workshop will consequently address the...
متن کاملWorkshops and Short Courses
The demand for ever higher data rates is driving research for broadband wireless communications to data rates of 100 Gbit/s and beyond. This workshop presents research work on 100 Gbit/s wireless communications that uses carrier frequencies beyond 200 GHz with bandwidths of 20 GHz or more and moderate spectral efficiencies. Various wireless system and component design aspects are covered includ...
متن کاملWorkshops and Short Courses
This short course will present the state-of-the-art in understanding RF power phenomena that detrimentally affect space, aircraft and terrestrial communications. Dramatic increase in communications capacity, bandwidth, number of carriers and antennas poses new challenges in handling the high RF power. These problems become ever more acute and critical for emerging and future RF systems. The sho...
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ژورنال
عنوان ژورنال: The Economic Journal
سال: 1902
ISSN: 0013-0133
DOI: 10.2307/2957282