The article deals with a device for temperature control of thermal object. is based on single-chip AVR ATmega32 microcontroller. There are two modes regulation. first designed regulation within the range -55 ° C to +125 C, and second from +126 +1000 C. uses DS18B20 digital serial output sensor. measurement resolution in °C 0.0625 °C. K-type thermocouple MAX6675 signal converter I2C interface. d...

The results of measurements the current dependences thermal resistance junction-case LEDs various types and manufacturers are presented. It is determined that increases with increasing current, for many samples there a noticeable break in dependence at currents close to nominal one. has been experimentally shown steepness can be used as diagnostic parameter makes it possible estimate degree tem...

Passive radiative cooling is currently the frontier technology in renewable-energy research. In terms of extraterrestrial applications, a critical component to thermal management system spacecraft, where extreme environment space can cause large temperature variations that break and damage equipment. For terrestrial nocturnal or daytime expected lead cost-effective passive heat without need ine...

Biphenyl is used as an intermediate for synthesis of various pharmaceutical compounds. The objective of present research was to investigate the influence of biofield treatment on physical, spectroscopic and thermal properties of biphenyl. The study was performed in two groups (control and treated). The control group remained as untreated, and biofield treatment was given to treated group. The c...