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...

abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...

1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...

Remaining informed on the latest biochemical information is a necessity as well as a professional responsibility for any person involved in the field of medicine. The main and most readily available sources for updating the professional's knowledge are medical journals. In addition to foreign periodicals, there are a number of useful medical journals published in Iran. The first Persian languag...

Background and purpose: Nowdays in almost all organizations, resources are allocated based on traditional methods, personal experiences and mental reasoning power. This causes some dissatisfaction among people and have no generalization ability and mathematical basis. The objective of this research was to propose a fuzzy goal programming model in resource allocation at the university-educa...