Diode detection and bolometric detection have been widely used to measure radio frequency (RF) power. However, flow calorimeters, in particular micro-fabricated flow calorimeters, have been mostly unexplored as power meters. This paper presents the design, micro-fabrication and characterization of a flow calorimeter. This novel device is capable of measuring power from 100 μW to 200 mW. It has ...

We report unusual negative thermal expansion and viscoelastic properties in graphene oxide paper. The paper was prepared from aqueous GO dispersions using a simple vacuum evaporation technique. From room temperature to 150 C, this paper-like graphene oxide sheet exhibits a constant negative thermal expansion coefficient of 67 · 10 / C along the in-plane direction. Peculiar hysteresis loops of t...

Polyhedral oligomeric silsesquioxanes show promising applications as organic-inorganic nanocomposite building blocks that can be used, for example, to enhance the properties of polymeric materials. In this work radial distribution functions, potentials of mean force, and self-diffusion coefficients are obtained from molecular dynamics simulations for polyhedral oligomeric silsesquioxane (POSS) ...

This paper develops a simple, cost-effective, fully Inkjet-printed flexible temperature sensor with easy fabrication steps using PiXDRO LP50 inkjet printer. The thermistor employed Poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT: PSS) as temperature-sensitive layer silver nanoparticles (AgNps) contact electrode. performance was evaluated on different dimensions and types of subs...

Eleven hypothermic patients were treated by heat supplied via the airway. Three patients died during rewarming, three died of unrelated causes several days after successful rewanning and five survived. Core temperatures were measured by a low reading mercury rectal thermometer and by a thermistor probe inserted into the rectum or midoesophagus. In every patient the core temperature rose without...

A new microcalorimeter has been realized for implementing the national power standard up to 26.5 GHz in 3.5 mm coaxial line at Istituto Elettrotecnico Nazionale (IEN) Galileo Ferraris. The system is based on a dry thermostatic container whose temperature is controlled by Peltier elements. The thermal load consists of a twin sensor complex that is alternatively supplied with high frequency (HF) ...

The Bujumbura meteorological station lies at the northern end of the lake (3.32° S, 29.32° E), while the Mbala station is situated 40 km from the southern end (8.85° S, 31.33° E). Both stations are part of the World Meteorological Organisation network. The lake temperature was measured with a CTD12+ instrument (accuracy ±0.01 °C) and an automatic ANDERAA thermistor string installed in the south...

Eleven hypothermic patients were treated by heat supplied via the airway. Three patients died during rewarming, three died of unrelated causes several days after successful rewanning and five survived. Core temperatures were measured by a low reading mercury rectal thermometer and by a thermistor probe inserted into the rectum or midoesophagus. In every patient the core temperature rose without...

We have demonstrated a printed electronic tag that monitors time-integrated sensor signals and writes to nonvolatile memories for later readout. The tag is additively fabricated on flexible plastic foil and comprises a thermistor divider, complementary organic circuits, and two nonvolatile memory cells. With a supply voltage below 30 V, the threshold temperatures can be tuned between 0 °C and 8...

In this study, the cavitation in hot water, which implies tight interaction of thermodynamic effect, phase change phenomena, and flow behavior, was studied by a combination experiment numerical simulation. The water up to 90°C performed high temperature high-pressure tunnel with NACA0015 as cavitator. inside cavity measured using high-accuracy thermistor probe. According result, depression incr...