Global trade in plastic waste and scrap declined further (2017-2021) 2021 preliminary data indicates a continuing trend the first half of 2022 (January to May). The combined surplus OECD Member Countries (i.e., difference between exports imports) continued decrease. Less is being exported by countries non-OECD countries, however some still export substantial volumes countries. Particularly seve...

To promote the recycling of Ti scrap, it is essential to develop new technologies that can efficiently remove oxygen impurities from scrap. However, direct removal dissolved in solid extremely difficult, and currently, there are no effective deoxidation methods be used industrially. In this study, we experimentally verified a technique for using vapor rare earth metals with high pressures, such...

These lecture notes introduce libraries for datatype-generic programming in Haskell. We introduce three characteristic generic programming libraries: lightweight implementation of generics and dynamics, extensible and modular generics for the masses, and scrap your boilerplate. We show how to use them to use and write generic programs. In the case studies for the different libraries we introduc...

o We further analyse a sub-set of commodity-related goods jewellery, fuel and metals. These goods offer a clean quasi-experimental setting to look at the effects of a pure change in price on criminal activity. Specifically, they are homogenous in their quality and supported by efficient resale markets (for example, the scrap metal recycling industry). Price changes for these goods are also exog...

An important problem in metallurgy of iron and steel is management of hydrated, fine-grained, iron-bearing waste which can be formed as a result of gas scrubbing. The article presents a model of application of converter slurry in a closed-circuit flow system. The correct preparation of slag, namely briquetting with defined additives, allows for application of such slag in the steel-making proce...

|Traditional looper control methods cannot deal e ectively with unmodeled dynamics and large variations which can lead to scrap runs and damages to machinery in steel industry. This paper presents the design of a fuzzy looper control with neural-net based tuning of rule-base and defuzzi cation. The e ects of various design options are discussed and practical conclusions are made. Also the resul...