Plastics are key components of almost any technology today. Although their production consumes substantial feedstock resources, plastics largely disposed after service life. In terms a circular economy1–8, reuse post-consumer sorted polymers (‘mechanical recycling’) is hampered by deterioration materials performance9,10. Chemical recycling1,11 via depolymerization to monomer offers an alternati...

The Cryocycling of Energetic Materials Project was executed in the period FY’94-96 as a Life Cycle Engineering activity in the Memorandum of Understanding (MOU) on advanced conventional munitions. This MOU is an agreement between the Departments of Energy and Defense (Office of Munitions) that facilitates the development of technologies of mutual interest to the two Departments. The cryocycling...

The purpose of design for sustainability, in a broad sense, is to reduce our negative impact on the environment, society, and the economy. To date, various approaches have been proposed to serve this purpose (1). These approaches commonly focus on the physical and technological qualities of sustainable products or services; for instance, reducing the amount of material used during manufacture, ...

Bedding and nesting materials can improve the health and environmental welfare of laboratory mice. This study was carried out to examine which items are actually preferred by mice. Two series of studies were performed on four types of floor-covering materials (Wood-shavings (Clean-chip), Cloth (Agrebe), Recycled-paper (Paper-clean), Paper (Care-feeaz), and on four types of nesting materials (Re...

An efficient method for the synthesis of heterogeneous gold catalysts has been developed. These catalysts were easily assembled from readily available silica materials and gold complexes. The heterogeneous catalysts exhibited superior reactivity in various reactions where protodeauration is the rate-limiting step. Dramatic enhancement in regio- and enantioselectivity was observed when compared ...

Recycled concrete aggregates and mixed recycled aggregates are specified as types of aggregates with lower densities, higher water absorption capacities, and lower mechanical strength than natural aggregates. In this paper, the mechanical behaviour and microstructural properties of natural aggregates, recycled concrete aggregates and mixed recycled aggregates were compared. Different specimens ...