The two-phase flow widely exists in the nature and industrial processes. The measurement of two-phase flows, including gas/solids, gas/liquid and liquid/liquid flows, is still challenging. Fusions of electrical tomography with conventional sensors provide possibilities to improve two-phase flow accurate measurement. In this paper, fusions of (1) electrical resistance tomography (ERT) with elect...

In patients with ulcerative colitis, epidemiological work has suggested an association between low folate status and an increased risk of colonic neoplasia. The aim of the present study was to determine if experimental folate deficiency increases the likelihood of developing neoplasia in rats treated with the carcinogen dimethylhydrazine. Weanling male Sprague-Dawley rats were fed with an amino...

Title of Dissertation: DEVELOPMENT OF SELF-ASSEMBLED ZnO NANOSTRUCTURES IN DIBLOCK COPOLYMERS ON LARGE AREA Si WAFERS AND GAS SENSOR APPLICATIONS Hasina Afroz Ali, Doctor of Philosophy, 2008 Dissertation Directed By: Agis A. Iliadis Department of Electrical and Computer Engineering ZnO nanoparticles with improved optical properties and increased surface areas have the potential for advanced opt...

– A new type of NO2 gas sensor has been made using the Floating Gate Field Effect Transistor (FG-FET) sensor system. 200 nm ZnO films were deposited on Si/Ti/Pt electrodes, which are mounted on FG-FET chips. SEM and EDX characterization methods were employed to study the surface of these films. The change in the work function of the film due to their interaction with NO2 has been measured at va...

Laser-based atmospheric trace-gas sensors have great potential for long-term, real-time, maintenance free environmental monitoring in distributed Wireless Sensor Networks (WSN). We are developing a laser based chemical sensing technology with wide-area autonomous wireless sensor networking as the final target. Our prototype sensor measures atmospheric oxygen concentration in the form of a batte...

In this paper a nanocrystalline (nc) zinc oxide based hybrid gas sensor with signal conditioning ASIC has been reported for sensing and transmitting the information about methane concentration from the underground coalmine environment. A low power, low temperature nc zinc oxide MEMS based gas sensor has been designed, fabricated and tested for the purpose with a power consumption of ~70mW and s...

The thriving of Internet-of-Things and integrated wireless sensor networks has brought an unprecedented demand for sustainable micro-Watt-scale power supplies. Development high-performing micro-thermoelectric generator (μ-TEG) that can convert waste thermal energy into electricity provide is therefore extremely timely important. Herein, a significant advance in the development earth-abundant, n...