The emissivity of soil surfaces at microwave frequencies depends strongly on the near-surface water content. However this relationship varies between soils. Use is made of a model (MICRO-SWEAT) which couples water, heat and microwave radiation transfers through soils to show that the main cause of soil variation in the relationship between apparent emissivity at 1.4 GHz (eapp) and the average w...

Miniature 250 to 700-μm tall copper air-filled rectangular coaxial line with inner conductor supported by periodic dielectric straps is demonstrated. The measured loss is as low as 0.08dB/cm at 37GHz, while the isolation between two parallel lines with center-to-center separation of 350μm is better than 60dB. A number of quasi-planar components are designed to be fabricated on the same 6inch wa...

Piezoelectric actuators are widely used in micro manipulation applications. However hysteresis nonlinearity limits accuracy of these actuators. This paper presents a novel approach utilizing a piezoelectric nano-stage as slave manipulator of a teleoperation system. The Prandtl-Ishlinskii (PI) model is used to model actuator hysteresis in feedforward scheme to cancel out this nonlinearity. A pas...

Nanofibres are increasingly being used in the field of bioanalytics due to their large surface-area-to-volume ratios and easy-to-functionalize surfaces. To date, nanofibres have been studied as effective filters, concentrators, and immobilization matrices within microfluidic devices. In addition, they are frequently used as optical and electrochemical transduction materials. In this work, we de...

Mobile devices have become almost ever-present in our daily lives and increasingly so in the professional workplace. Applications put company data, personal information and sensitive documents in the hands of busy nurses at hospitals, company employees on business trips and government workers at large conferences. Smartphones and tablets also not only store data on-device, but users are frequen...

Generalized multiprotocol label switching (GMPLS) with wavelength division multiplexing (WDM) technology is a very promising protocol technology for future optical networks. GMPLS technology interconnects new and legacy networks by automating connection provisioning and traffic engineering. The present electrical interconnects for the system on chip (SoC) are unable to satisfy the multiple desi...

We consider the problem of designing a wireless communication system where one of the two ends in the link is totally passive and can use simpli ed analog technology, such as lters and non-linearity. This study builds the background and proposes possible solutions for the design of future ultra-miniaturize wireless transceivers operating on ranges of picocells and may serve in a wide range of c...