A growing number of manufacturers are realizing cost and environmental benefits through the sustainability of innovation and optimization processes. Based on polluting less and creating less, the study is pursuing sustainability on increasing operational efficiency by reducing costs and waste. Pulse dust collection systems are commonly used filtration equipment in industries and have lots of energy consumption due to running all day. This study is focused on the optimal parameters for energy saving and cost reduction, and the model is represented by the pressure drop of the filter and the residual powder. The characteristic values of the cleaning efficiency and the air permeability reduction are used for MATLAB to analyze the optimization state. This study found that the material of filter elements, the type of dust, the conditions of pulse-jet, and the filtering speed are the factors that affect the operational efficiency. In terms of cost, the pulse interval time in 10 s is the best parameter, and the pulse time does not affect the overall cost of the filter. Considering energy saving, 0.1 s of the pulse time is the best parameter. In addition, a lower dust concentration is a way to improve efficiency for increasing the filter life and reducing cost.
The slime toys were invented by Mattel in 1976. Slime is a reversible cross-linking gel made from guar gum. The slime toys were further developed into many different products and became one of the most popular toys. Despite buying slime products with attractive packaging, some children love to make their own slime products. The Consumer Council of Hong Kong published a report in 2019 to alert the public about the safety problems because of the excess boron content in those slime products in 2019. Some reported cases of slime product players having adverse health symptoms, which made the government concerned about the safety of slime products. The objectives of the study were to investigate the concentration of boron compounds in the four selected slime toys from the market and suggest a safety ingredient formula to the users to make their own do-it-yourself slime toys. Because only the European Union has relevant safety regulations and standards to limit the concentration of boron compounds in the toys, amendment of the current children’s products safety regulations and standards is required. By fulfilling the objectives, the consumers can make sure that their children who play with slime products can do so without the potential adverse health effects.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.