Electrochemical deposition of silicon at room temperature is problematic due to the intrinsically low conductivity deposits. This study reports photoelectrochemical (PEC) (Si) and silicon–carbon (Si–C) layers from an ionic liquid 40 °C using tetrachloride (SiCl4) as a precursor. Amorphous are deposited on p-type (p-Si), gallium arsenide (p-GaAs), aluminum–copper alloy AA2024. The semiconductor ...

Municipal solid waste management system (MSWMS) includes MSW generation, storage, collection, transfer and transport, processing and disposal. The planning of an optimal MSWM strategy requires a reliable tool for predicting the amount of municipal solid waste (MSW) that is likely to be produced. The MSWMS is a complex, dynamic and multi-faceted system depending not only on available technology ...

Abstract: The supersolidus liquid phase sintering characteristics of commercial 2024 pre-alloyed powder was studied at different sintering conditions. Pre-alloyed 2024 aluminum alloy powder was produced via air atomizing process with particle size of less than 100 µm. The solidus and liquidus temperatures of the produced alloy were determined using differential thermal analysis (DTA). The sinte...

In the present work, the tensile properties and fracture behavior of a 2024Al composite reinforced with 10 vol % SiCp and fabricated via powder thixoforming (PT) were studied at temperatures ranging from 25 ◦C to 300 ◦C with a strain rate of 0.05 s−1, as well as the PT 2024 alloy. The results indicated that the tensile strengths of both the PT materials were all decreased with increasing the te...

Background. In Canada, the current recommendation is to offer PPV23 to adults ≥ 65 years. PCV13 is now licensed for adults. Methods. Invasive pneumococcal disease (IPD) cases in adults 65-74 years of age in the Quebec notifiable diseases registry were classified into five serotype categories. Poisson regression models were fitted to monthly rates observed in 2000-2014 and predictions were made ...

The study estimated the potential demographic impact of acquired immunodeficiency syndrome (AIDS) in a low-fertility urban setting in sub-Saharan Africa. The prevalence of human immunodeficiency virus (HIV) projected using a deterministic mathematical model was put into the AIDS Impact Model (AIM) of the SPECTRUM Policy Modelling System to estimate the potential demographic impact ofAIDS in Add...