An Accurate System for Measuring Currents in Bundled Conductors

Description
Current measurement is desired for various applications, including operation monitoring, energy metering and troubleshooting of utility systems. Existing methods for current measurement are designed for single conductors (i.e. clamp on current probe). But to measure currents in bundled conductors enclosed in a structure (i.e. Teck, Romex cable, PVC conduit) without isolating them is a challenging […]

Light Switch Adapter

Description
University of Alberta inventors have developed a novel light switch interface designed for individuals who may have reduced mobility and limited range of motion, such as children and persons with disabilities. This adapter replaces the cover panel on the popular rocker-style light switches commonly found in modern homes. The existing switch can be toggled on […]

Non-Contact, High Resolution Microwave Sensing in Air, Liquid or Solid

Description

Microwave resonance technology is used for various sensing applications in areas such as material identification and classification, environmental system and food industry monitoring, and biomedical diagnostics. Conventionally, this technology has suffered from low sensitivity and resolution. Quality factor plays a critical role in determining sensitivity, resolution, and minimum detectable signal of the sensor. A microwave resonance device with a high quality factor can lead to […]

Zonal UWB Receiver

 
Description
An ultra-wideband (UWB) receiver is a short range wireless communications technology currently gaining popularity for use with personal area networking (PAN) applications such as wireless monitors, camcorders, and other high bandwidth devices.  UWB utilizes a very large frequency range in order to drastically increase the available bandwidth without interfering with existing traditional communications devices, even […]

Meta-material Thermal Emitter for Thermo-Photovoltaics

Description
Heat is considered as a byproduct of industrial processes. For example, average oil and coal based energy conversion processes account for thermal losses roughly within 50% to 60% of the total produced power. For small internal combustion engines, this number may climb as high as 75%. Thermal losses are also significant for renewable energy systems, […]

Light-Emitting Diode Compatible with Silicon Microelectronics

Description
The drive for more components (per unit area) on a microelectronics chip necessitates more interconnects between them. As the feature size of these interconnects shrinks and the interconnects are packed in more tightly, problems such as RC time delay, heating or power dissipation, and electromagnetic interference (crosstalk) become more prevalent. One possibility to overcome this […]

Silicon Nanocrystal Optical Resonator

Description
Silicon is the principal material used in microelectronics, due in part to its low cost and high abundance. However, there are problems inherent in the miniaturization of conventional microelectronics, such as cross-talk (interference) and increased heat dissipation. To overcome these challenges and to increase the speed of computing, there is a push towards photonics, particularly […]

Overhead & Complexity Optimized Network Coding for Improved Network Performance

Description
Communication and data transfer over the internet is driven by speed and the ability to provide uninterruptable high quality services. Conventional network broadcast/multicast protocols are either unreliable (e.g. user datagram protocol- UDP) or rely significantly on control or feedback messages (e.g. transmission control protocol- TCP, pragmatic general multicast- PGM) incurring a great deal of overhead […]

Novel Small-Area Low-Power Analog to Digital Converter for In-Pixel Data Conversion

Description
Most image sensors incorporate one analog-to-digital converter (ADC) per pixel array, or per column, to process a photodiode’s sensitive signal. The next generation of products aims to incorporate one ADC per pixel, which can result in higher contrast range and resolution, as well as sensitivity. The main challenge in pixel-level data conversion is producing a […]

Non-Radiating In-Situ Heating for Oil Sands

Description
Viscosity is a major obstacle in the recovery of low gravity oil resources from heavy oil and bitumen reservoirs. Traditional oil recovery and well stimulation techniques using hot steam or fluid are not efficient due to prohibitive heat losses from injection wells and reservoirs. More importantly, commonly used thermal recovery methods cause greenhouse effects, adversely […]