DESIGN OPTIMIZATION OF A LIGHTWEIGHT SECONDARY MIRROR ASSEMBLY FOR A 1-M CLASS GROUND TELESCOPE FOR SATELLITE LASER RANGING

Design optimization of a lightweight secondary mirror assembly for a 1-m class ground telescope for satellite laser ranging

Large-sized ground telescopes have been developed to meet the high demands for opto-mechanical imaging systems in space and military applications.In line with these advancements, we developed a 1-m class ground telescope for astronomical imaging and satellite laser ranging (SLR).In a ground telescope, mirror deflection is mainly induced by gravity

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Modern Climate and Soil Properties Explain Functional Structure Better Than Phylogenetic Structure of Plant Communities in Northern China

Examination of the mechanisms of the plant community assembly at a geographical scale is an interesting topic in ecology and biogeography, which are of great significance for the understanding of species coexistence and biodiversity conservation.But so far, only a few studies have simultaneously assessed the relative roles of multiple-scale factors

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Spirituality/Religiosity: A Cultural and Psychological Resource among Sub-Saharan African Migrant Women with HIV/AIDS in Belgium.

Spirituality/religion serves important roles in coping, survival and maintaining overall wellbeing within African cultures and communities, especially when diagnosed with a chronic disease like HIV/AIDS that can have a profound effect on physical and mental health.However, spirituality/religion can be problematic to some patients and cause caregivi

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