in a steam power plant, the temperature of the cooling water leaving the condenser for recyclingshould decrease. this is achieved in a cooling tower. the heller cooling tower does not require waterfor operation, thus, it is a suitable system for use in thermal power plants throughout iran. wind is anenvironmental factor that unfavorably affects the performance of a cooling tower. previous studi...

Contactless bank cards have been issued steadily to banking customers over the past four years and this trend has continued to grow rapidly more recently. We want to highlight a list of security issues as well as privacy threats to be concerned with when using such contactless bank cards. Further advances in smartphone technology applications can lead to new threats in relation to contactless b...

This report summarizes the results of our evaluation of antennas of contactless and dual interface smartcards and our ideas for user-switchable NFC antennas. We show how to disassemble smartcards with contactless capabilities in order to obtain the bare chip module and the bare antenna wire. We examine the design of various smartcard antennas and present concepts to render the contactless inter...

The article discusses the issues of creating contactless switching devices for automatic quality control and operation modes power supply systems, using developed thyristor voltage relays, characterized by high reliability speed, combining a sensitive system powerful final controlling element. Schemes with operating principles experimental characteristics are given. It is proposed to use it aut...