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Storm drains are essential components of urban infrastructure, designed to manage rainwater runoff and prevent flooding in our cities. Among the various elements that make up our stormwater management systems, storm drain covers play a crucial role, particularly the round ones, which are commonly found in urban areas. This article explores the significance of storm drain covers, their design, and their impact on our environment and safety.

The term 42% bollard refers to a specific design that features a height that is approximately 42% of the average height of standard bollards. This design innovation is rooted in research that emphasizes the importance of visibility and human scale in public spaces. A bollard that is proportionate to human height rather than towering over pedestrians enhances the feeling of safety and accessibility.

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In recent years, advancements in nanotechnology have enabled the fabrication of square gratings at the nanoscale. These nanostructures exhibit unique optical properties that can be exploited in applications ranging from biomedical imaging to optical sensing. For instance, square gratings made of nanomaterials can enhance the sensitivity of biosensors, allowing for the detection of low concentrations of biological molecules. This has significant implications for medical diagnostics, as it enables early detection of diseases based on biomolecular interactions.