Reliable group communication is an important technology for building fault-tolerant applications. Yet, some of the major frameworks for distributed application development (e.g., Corba, Jini and Enterprise JavaBeans) lack support for this paradigm. We claim that this situation constitutes a major obstacle to a broader diffusion of reliable group communication in industrial applications. In this...

The effects of different concentrations of CdCl2 and AlCl3 on NH4+ and NO2? oxidation in an aqueous system were investigated. AlCl3 had no effect on NH4+ removal and its oxidation to NO2?, whereas NO2? disappearance was greatly enhanced by AlCl3. In contrast, CdCl2 delayed removal of NH4+ and its subsequent oxidation to NO2? and also decreased the rate of NO2? disappearance. When compared to th...

COVID-19 driven lockdown has affected air quality worldwide. Changes in pollutants concentration, Air Quality Index (AQI), and associated Excess Health Risk (ER%) were assessed using satellite data of before (2019), during (2020) periods the industrially, agriculturally developed highly populated area Haryana northern region Indo-Gangetic Plains. Parameters such as Aerosol Optical Depth (AOD), ...

Denis Bouyssou1, Silvano Martello2, Frank Plastria3 1 LAMSADE, Université Paris Dauphine, Place duMaréchal de Lattre de Tassigny, 75775 Paris Cedex 16, France (Tel: +33 1 44 05 48 98, Fax: +33 1 44 05 40 91, e-mail: [email protected]) 2 DEIS, Università di Bologna, Viale Risorgimento 2, 40136 Bologna, Italy (Tel: +39 051 2093022, Fax: +39 051 2093073, e-mail: [email protected]) 3 BEIF-Vak...

background: epidemiological studies have illustrated that exposure to atmospheric nitrogen oxides (no2/nox) is responsible for an increased risk of acute or chronic diseases such as cancer. in this study the health risks associated with nitrogen dioxide (no2) were assessed in the city of kermanshah, the capital of kermanshah province, iran. methods: data on hourly no2 levels that had been measu...

Field calibration of low-cost air quality (AQ) monitoring sensors is essential for their successful operation. Low-cost often exhibit non-linear responses to pollutants and signals may be affected by the presence multiple compounds making challenging. We investigate different approaches field an AQ device named ENSENSIA, developed in Institute Chemical Engineering Sciences Greece. The present s...

We report on the first case in Ireland of ureteric stenting with shape-memory alloy nickel-titanium (Memokath 051) stent in relieving malignant ureteric obstruction. Successful drainage was achieved and the patient required no further intervention indicating a clear place for these stents in the long-term management of malignant ureteric strictures. The use of ureteric double-J stenting in the ...

background: no2 is a poisonous gas that potential to cause major threat to human being health and the environment, as a result, removing this gas from environment seems to be essential. methods: the study aimed to remove this gas from environment using iranian natural zeolite, clinoptilolite. after crushing and preparing two sizes of 1 and 2 mm zeolite they were activated in 380 to 420 ºc for 2...

A sensitive, compact detector for the simultaneous measurement of O3 and NO2 is presented in this work. There are two channels detector, namely Ox channel channel. In presence excess NO, ambient converted to both channels, directly detected via cavity ring-down spectroscopy (CRDS) at 409 nm. At a 10 s integration time, have 1σ precision 14.5 13.5 pptv, respectively. The Allan deviation plot sho...