In this study, microwave-assisted extraction was applied for pectin extraction from the dried orange peel and Box-Behnken response surface design was used to study and optimize the effects of processing variables (microwave power, irradiation time, pH and solid-liquid ratio) on the yield of pectin. The amount of pectin extracted increased with increasing microwave power, while it reduces as the...

We use a small Bose-Einstein condensate on an atom chip as an interferometric scanning probe to map out a microwave field near the chip surface with a few micrometers resolution. With the use of entanglement between the atoms, our interferometer overcomes the standard quantum limit of interferometry by 4 dB and maintains enhanced performance for interrogation times up to 10 ms. This corresponds...

fumonisins (a family of foodborne carcinogenic mycotoxins) cause health hazards to humans and animals in developing countries, and has also economic implications. therefore, the efficacy of a novel environmental friendly nixtamalization procedure to make tortillas (the main staple food for the mexican population) was investigated.maize contaminated with 2136.67 ng/g total fumonisins was process...

Seven decades after the discovery of collective spin excitations in microwave-irradiated ferromagnets, there has been a rebirth of magnonics. However, magnetic nanodevices will enable smart GHz-to-THz devices at low power consumption only, if such spin waves (magnons) are generated and manipulated on the sub-100 nm scale. Here we show how magnons with a wavelength of a few 10 nm are exploited b...

The Australia Telescope Compact Array and the Very Large Array are currently being upgraded to operate with wide bandwidths; interferometers dedicated to the measurement of cosmic microwave background anisotropies are being designed with large instantaneous bandwidths for high sensitivity. Interferometers with wide instantaneous bandwidths that do not operate with correlators capable of decompo...

Electromagnetic radiation still is a new and exotic option in food and beverage processing, though it gradually is finding niches in various applications as research engineers overcome the practical barriers to commercial use. From relatively benign radio waves to highly destructive gamma waves, electromagnetic radiation has been used for everything from drying crackers to meat sterilization. T...

Shellfish have been identified as a potential source of Cryptosporidium infection for humans. The inactivation of C. parvum and other pathogens in raw molluscan shellfish would provide increased food safety for normal and at-risk consumers. The present study examined the efficacy of two alternative food-processing treatments, e-beam irradiation and microwave energy, on the viability of C. parvu...

In this paper, local spark sintering of a ceramic-metal system (SiO₂-Sn) during microwave processing was examinedby means of synchrotron-radiation-computed tomography technology. From the reconstructed 3-D and cross-section images of the specimen, adensification process was observed below the melting point of Sn, and then the specimen came into a rapid densification stage. These results may be ...

A field mapping system based on external electrooptic sampling has been developed in order to determine the vectorial components of the electric near-field distribution within microwave integrated circuits. The capabilities of the setup are demonstrated by two-dimensional measurements of normal and tangential fields in a coplanar microwave distribution network at frequencies up to 15 GHz. Resul...

Nanoscale mechanical devices offer the prospect of signal processing, computation, and sensing – at microwave frequencies, sub-nanosecond time scales, and with unprecedented sensitivity and consumption of extremely small amounts of power. In this brief paper I will review the current state-of-the art of nanoelectromechanical systems (NEMS) – with respect to both the underlying fundamental scien...