Abstract: Most of the existing flow sensors are expensive and limited in their capabilities for sensing bidirectional flow. Low-cost and accurate flow sensors with bidirectional sensing capability ...

Abstract: Multiple water quality sensors are required to construct a network for continuous and precise monitoring of water quality in natural environments. Therefore, low-cost sensors are necessary ...

公司历史：Silkroad24于1999成立，16年备件销售积累，励志成为国内“零出错率”欧洲工业自动化仪器仪表，备品备件供应商。 公司规模：100人左右 公司模式：德国本土采购，德国仓库拼单操作，为客户节约了成本，提高了采购效率。提供100%原装正品，真正做到了 ...

Let’s face it: As we age, our vision and balance aren’t what they used to be. These changes to our senses can be minor annoyances but can also lead to injury, from stubbed toes to serious falls.