The design of a microwave irradiated enzyme (biochemical) reactor is here presented. It consists of a suitable higher‐order mode resonant cavity which contains several tubes where the solution containing reagents and products flow in the laminar flow regime. The process evolution under irradiation has then been simulated using the COMSOL multiphysics environment. As an example, the enzymatic hydrolysis reaction of sucrose has been considered. The results of the multiphysics simulation show that such a reactor can be used to effectively perform the reaction process in the optimal conditions for maximizing the reaction rate and preventing the enzyme deactivation by a precise knowledge of the temperature distribution and its strict control.
The measurement procedure of the open area in situ electric field strength is presented, acquiring the real field data for testing of the Serbian electromagnetic field monitoring network (SEMONT) and its Internet portal. The SEMONT monitoring system introduces an advanced approach of wireless sensor network utilization for the continuous supervision of overall and cumulative level of electromagnetic field over the observed area. The aim of the SEMONT system is to become a useful tool for the national and municipal agencies for the environmental protection, regarding the electromagnetic pollution monitoring and the exposure assessment of the general population. Considering the public concern on the potentially harmful effects of the long-term exposure to electromagnetic radiation, as well as the public transparency principle that is incorporated into the Serbian law on non-ionizing radiation protection, the SEMONT monitoring system is designed for the long-term continuous monitoring, presenting real-time measurement results, and corresponding exposure assessment over the public Internet network.
Wireless networks traffic has experienced a considerable growth in recent years. Likewise, it is to be expected that billions of objects will be connected to the Internet in years to come, many of them wirelessly. Such increase in a number of wireless connections and the inevitability of wireless communications in proximity of users highlight the healthcare concern on electromagnetic field (EMF) exposure. Thus, the intelligent monitoring systems, such as the Serbian Electromagnetic Field Monitoring Network-SEMONT-have been required to be developed and utilized for continuous and real-time EMF monitoring, as well as for the assessment of the potential in situ daily exposure of population. This paper presents the results of the SEMONT initial campaign of continuous monitoring of the high-frequency electric field strength over the campus of the University of Novi Sad, as an open area environment. Several locations, most frequently visited by the student population in their everyday activities, have been monitored during the rush hour in order to determine the fluctuation of daily exposure on this, usually considered, highly sensitive area. The results of monitoring suggest that potential exposure is far below the allowable limit, regarding reference levels prescribed by the Serbian legislation for the general population.
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