BACKGROUND Although the germicidal properties of ultraviolet (UV) light have long been known, it is only comparatively recently that the antimicrobial properties of visible violet-blue 405 nm light have been discovered and used for environmental disinfection and infection control applications. AIM To review the antimicrobial properties of 405 nm light and to describe its application as an env...

OBJECTIVE The values of microbial growth in the air exiting from the heating, ventilation and air conditioning (HVAC) ducts treated with silver/zeolite have been shown to be lower than those in the air coming out the traditional metal ones. This study aims to verify how long this antimicrobial activity lasts. METHODS All the tests were performed according to US ASTM E2180-01 and ISO-JIZ 22196...

in this paper, a formal model for antivirus update agent system is presented based on mobile agent technology and predicate/transition petri nets. the mobile agent system contains two mobile agents called dca and una. it sends out agents to update antivirus on client computers in a network. each agent takes on a specified responsibility. first, dca roams through the network and check the last d...

With the widespread of novel coronavirus (SARS-CoV-2), inactivation bacteria and viruses using ultraviolet (UV) light has been reevaluated. However, there are many applications where safety to human body itself effect questioned, is a movement review UV-C guidelines (Global Lighting Association, Position Statement on Germicidal Irradiation SAFETY GUIDELINES, 2020). Since Minamata Convention Mer...

Cosine response is an important characteristic of optical detector for irradiance measurements. The non-ideal cosine a may lead to errors in In this paper, theoretical simulation generated due isotropic point light sources carried out different illumination conditions. Simulation results show that the measurements error detectors become significantly high at edges and corners floor when source ...