Monitoring and modelling chlorine levels along the Myponga Trunk Main

Looks at the reactions between chlorine and the four fractions of natural organic matter. Organic matter from the raw water from Myponga Reservoir was fractionated in the laboratory and chlorine decay tests were undertaken on each fraction. Chlorine was also modelled and monitored along the Myponga Trunk water main for a better understanding of chlorine decay kinetics in the bulk water of a distribution system.Thesis (M.Eng.Sc.) -- University of Adelaide, Dept. of Civil and Environmental Engineering, 200

Anomalies cytogénétiques dans les leucémies aiguës myéloïdes : données récentes.

Les leucémies aiguës myéloïdes (LAM) constituent un groupe hétérogène de pathologies dues à la prolifération clonale de précurseurs hématopoïétiques immatures (blastes). La principale conséquence de cette prolifération est l'installation d'un tableau d'insuffisance médullaire associant une neutropénie fébrile, un syndrome anémique et un syndrome hémorragique. Les LAM ont pu bénéficier du grand essor qu’a connu la cytogénétique dans les dernières années, et du développement de nouvelles techniques de cytogénétique moléculaire (FISH, M-FISH, CGH et CGH array), sur le plan diagnostic, pronostic et stratégie de traitement. Ce travail a pour objectif de décrire les principales techniques cytogénétiques, et leur impact sur le diagnostic, la classification, le pronostic et le traitement des LAM

Monitoring and modeling chlorine levels in water distribution systems

This paper describes an ongoing research project aimed at developing a reliable computer model to forecast chlorine residuals throughout the 20 km long Myponga pipeline, south of Adelaide. In spite of the high chlorine dose at the treatment plant (~6mg/l), the chlorine residual is virtually zero at the end of the pipe. By understanding the chlorine decay kinetics in this pipe and the parameters influencing this decay, a model forecasting the free chlorine residual will be developed. It will provide the basis for developing feedback systems that can be used to adjust chlorine dosing levels at the treatment plant in response to residual levels at the extremities of the distribution system. The research involves laboratory measurements as well as a field study. The laboratory measurements are undertaken in order to select the most appropriate chlorine decay kinetic model and to understand the parameters involved in this decay. Of particular interest are the four fractions of natural organic matter (NOM) extracted using ionexchange resins. The field study involves chlorine and flow monitoring by on-line sensors along the pipe. Instead of using sparse data collected along the pipe, this extended period of monitored data will enable a good calibration of the computer model. This paper describes the methodology used in the study as well as the difficulties that the fieldwork imposes

5.8 GHz Rectenna for wireless powering battery-less sensors

—This work aims to develop an electromagnetic energy rectification system, or rectenna, which constitutes the main element of a wireless energy transmission. The goal of our research is to use electromagnetic waves to power remote sensors that are part of the internet of things. In order for these sensors to function properly, their batteries must be recharged when low. In this study, we have developed a rectification system sensitive to the frequency of 5.8 GHz. To realize this system, we have focused on the various parameters that affect the RF-DC conversion efficiency of a rectifier circuit. Then, we presented the design theory of a rectifier system in microstrip technology. We then optimized and validated our system for an input power of about 20 dBm. The proposed system has an energy efficiency of 42.56and can supply a load at 200 ohms with an output conversion voltage of 2.918 volts for this low-consumption systems

5.8 GHz Rectenna for wireless powering battery-less sensors

—This work aims to develop an electromagnetic energy rectification system, or rectenna, which constitutes the main element of a wireless energy transmission. The goal of our research is to use electromagnetic waves to power remote sensors that are part of the internet of things. In order for these sensors to function properly, their batteries must be recharged when low. In this study, we have developed a rectification system sensitive to the frequency of 5.8 GHz. To realize this system, we have focused on the various parameters that affect the RF-DC conversion efficiency of a rectifier circuit. Then, we presented the design theory of a rectifier system in microstrip technology. We then optimized and validated our system for an input power of about 20 dBm. The proposed system has an energy efficiency of 42.56and can supply a load at 200 ohms with an output conversion voltage of 2.918 volts for this low-consumption systems