Abstract Metal-assisted chemical etching (MaCE), a low-cost and versatile method was considered a promising technique for preparing silicon nanowires (SiNWs), yet the lack of well controlling the injected holes within Si might reduce the etching Backpacks rate, create the unwanted sidewall etching, and degrade the structural uniformity.Herein, in t
This paper presents a particle swarm tracking algorithm with improved inertia weight based on color features.The weighted color histogram is used as the target feature to reduce the contribution of target edge pixels in the target feature, which makes the algorithm insensitive to the target non-rigid deformation, scale variation, and rotation.Meanw
Background: Vaccination is considered to be a key public health intervention to end the COVID-19 pandemic.Yet, the success of the intervention is contingent on attitudes toward vaccination and the design of vaccination policies.Methods: We conduct cross-sectional analyses of policy-relevant attitudes toward COVID-19 vaccination using survey data of