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Khashayar Razghandi

“Filters and filtering operations are at the core of many of the products, services, and information that is being produced and consumed. From chemical industry, waste management and recycling to search engines, AI, and insurance policies, filtering is of concern in various disciplines and fields.

The ubiquitous presence of the term within these broad realms is highlighted in the fact that it is usually described not according to a general or universal definition, but within a set of categories; as in a physical separating article or apparatus that separates out matter in liquid or gas medium; as devices to suppress waves or frequency of some type, for instance in signal processing and electronics, or optical and acoustic filters; as in the software and internet realm, amongst others.

Even more remarkable is how filter as a verb is usually defined through referral to filter as a noun, an object: “To subject to the action of a filter”, “to remove by means of filter”, “to pass or remove through or as if through a filter”. Filter, as an object, is the locus of the discourse, and “filtering” comes secondary through association to “filter”…”

Rethinking Filter: An Interdisciplinary Inquiry into Typology and Concept of Filter, Towards an Active Filter Model., Razghandi, K.; Yaghmaei, E., Sustainability 2020, 12, 7284.Sustainability 2020, 12, 7284.

 

Research Structure
Figure 1. Structure of the research. Schematic presentation of the rationale and structure of the research; with a historical dimension in perspective, explore a collection of various filter phenomena from various fields and scales operating at material and symbolic level, to develop a systemic and Active Model of Filter phenomena, that could serve as a ground for a more comprehensive analysis and synthesis practices.

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