The sustainability and non-biodegradability of heavy metals, on the one hand, and the increasing environmental pollution caused by industrial wastewater on the other hand have increased the attention to heavy metal remediation. Cyanobacteria are one of the most important agents of heavy metals removal in drought and aquatic environments. Their ability to remove metals is related to various mech...

a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

Abstract Background and purpose: Safety control in edible oil industry regarding its pollution to heavy metals is one of the most important factors in maintaining the health of people and assuring their safety. This research aimed at evaluating the effect of production process of sunflower oil on its lead and arsenic content. Materials and methods: All sunflower samples were collected from ...

a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...