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The Large Yield Radiometer (LYRA) is an XUV–EUV–MUV (soft X-ray to mid-ultraviolet) solar radiometer onboard the European Space Agency Project for On-Board Autonomy 2 (PROBA2) mission, which was launched in November 2009. LYRA acquires solar-irradiance measurements at a high cadence (nominally 20 Hz) in four broad spectral channels, from soft X-ray to MUV, which have been chosen for their relevance to solar physics, space weather, and aeronomy. We briefly review the design of the instrument, give an overview of the data products distributed through the instrument website, and describe how the data are calibrated. We also briefly present a summary of the main fields of research currently under investigation by the LYRA consortium.

The most of operations of chemical, biochemical or petrochemical industries are carried out in tanks or in reactors which are mechanically-controlled. The optimum mode of operation of these devices requires a finalized knowledge of the thermo-hydrodynamic behavior induced by the agitator. In the present work, the characterization of the incompressible hydrodynamic and thermal fields of a non-Newtonian fluid (Bingham) in a flat, non-baffled cylindrical vessel fitted with anchor agitator was undertaken by numerical simulation, using the CFD code Fluent (6.3.26) based on the finite volume discretization method of the energy equation and the Navier-Stokes equations which are formulated in (U.V.P) variables. We have summarized this simulated system by comparing of the consumed power and the Nusselt number for this type of mobile (Anchor agitator).

Chronic obstructive pulmonary disease (COPD) is a major public health problem that remains largely under-diagnosed, mainly due to the under-use of spirometry to establish the diagnosis. The aim of this study is to evaluate the effectiveness of the Moroccan Arabic dialect version of the COPD Assessment Test (CAT) in screening for COPD. This was a cross-sectional study carried out in primary care facilities in Morocco, involving participants aged 40 and over. The performance of CAT in detecting cases of COPD was measured with reference to the results of spirometry, considered to be the gold Standard. A total of 477 participants were included in the study. The prevalence of COPD was 6.7%. Internal consistency of the Moroccan Arabic dialect version of the CAT was high, with a Cronbach's alpha of 0.89. The total score of the CAT and of each item was significantly higher in subjects with COPD than in those without (P=0.000). Significantly negative correlations were found between CAT total score and FEV1 (r = -0.33, p=0.000), CAT and FVC (r = -0.22, p=0.000), CAT and FEV1/FVC ratio (r = -0.22, p=0.000). The receiver operating characteristic curve showed an area under the curve of 0.93. A CAT score of 10 was the optimal cut-off value for COPD screening, with a sensitivity, specificity, positive predictive value, and negative predictive value of 78.1%, 93.9%, 48.1% and 98.4%, respectively. The results of the present study showed that the CAT could be used as a screening tool for COPD. The use of this tool by healthcare professionals in primary care settings will improve and promote early diagnosis of this chronic disease.

The spinel zinc ferrite (ZnFe 2 O 4 ) /cellulose composite has been successfully fabricated as a photocatalyst and assessed for its photocatalytic activity toward the degradation of methylene blue (MB) in an aqueous solution. The Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray (EDX), thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), High-resolution transmission electron microscopy (TEM) and zeta potential were used to evaluate the magnetic photocatalyst composite and investigate its degradation mechanism. Furthermore, the photocatalytic behavior of the composite was studied under various conditions. The ZnFe 2 O 4 / cellulose composite effectively degraded (100%) MB after 180 min at a pH of 6.5. The regeneration of the loaded composite was studied using the alcohol/water solution and reused upon a certain variation in the efficiency after the fourth cycle. The photocatalytic process was found to be consistent with the pseudo-second-order kinetic model. Graphical abstract

A new copolymers, high molecular weight poly(acrylamide) [AM2A0.01W20] and [AM1A0.1W20] were synthesized by radical adiabatic copolymerization in aqueous solution. The [AM2A0.01W20] copolymer was hydrolysed in basic medium by using sodium hydroxide solution and leads to a new hydrolysed poly(acrylamide) [AM3A0.01W20-H]. The structure and composition of the copolymers were established by ¹H NMR, IRTF and conductivity. The molecular weights are obtained by size exclusion chromatography [SEC] and by viscosity. The variation of the reduced viscosity of aqueous copolymer solutions with copolymer concentration revealed a strong viscosity values showing very high [PAM] molecular weights. In the present work, several copolymer formulations are tested by the process of Coagulation/Flocculation/Decantation with a Jar-test, using a 30 mg L⁻¹ clay suspension. The optimization process shows that the copolymers present different flocculation efficiencies. The copolymers with the best performances were tested on a semi-industrial experimental pilot for the Coagulation/Flocculation/Decantation process. Good Flocculation yield superior than 70 % are observed for the [AM3A0.01W20-H] with high molecular weight.

The most of operations of chemical, biochemical or petrochemical industries are carried out in tanks or in reactors which are mechanically-controlled. The optimum mode of operation of these devices requires a finalized knowledge of the thermo-hydrodynamic behavior induced by the agitator. In the present work, the characterization of the incompressible hydrodynamic and thermal fields of a non-Newtonian fluid (Bingham) in a flat, non-baffled cylindrical vessel fitted with anchor agitator was undertaken by numerical simulation, using the CFD code Fluent (6.3.26) based on the finite volume discretization method of the energy equation and the Navier-Stokes equations which are formulated in (U.V.P) variables. We have summarized this simulated system by comparing of the consumed power and the Nusselt number for this type of mobile (Anchor agitator).

In order to fulfil Canada's international disaster relief, humanitarian assistance, peacekeeping and peace enforcement roles, the Canadian Forces (CF) rely on a supply network to deploy and sustain its overseas missions. Warehousing, maintenance, transhipment and transportation activities are required to support missions. Currently, the CF supply network does not incorporate any permanent overseas depots. Since international needs and Canada's roles have significantly evolved during the last decade, and given that supply network efficiency and robustness are critical for missions' success, reengineering the CF supply network to consider the incorporation of permanent international prepositioning depots has become an important issue. This paper proposes an activity-based stochastic programming model to optimise the CF overseas supply network. It also shows how the model proposed can be used to improve the global reach of the CF.