Sökresultat

Filtyp

Din sökning på "*" gav 534376 sökträffar

Analysis and quantification of parabens in cosmetic products by utilizing hollow fibre-supported liquid membrane and high performance liquid chromatography with ultraviolet detection

A simple and direct method based on hollow fibresupported liquid membrane (HFSLM) extraction and liquid chromatography equipped with a UV detector was developed for analysis and quantification of parabens in cosmetic products. The parabens analysed included methyl, ethyl, propyl, isobutyl and butyl paraben. The HFSLM extraction was carried out by employing di-n-hexyl ether as organic liquid that w

What Do You Like? Early Design Explorations of Sound and Haptic Preferences

This study is done within the framework of a project aimed at developing a wearable device (a bracelet) intended to support sensory motor rehabilitation of children with visual impairments. We present an exploratory study of aesthetic/hedonistic preferences for sounds and touch experiences among visually impaired children. The work is done in a participatory setting, and we have used mixed methods

Criteria for Design of PID Controllers

This paper treats robustness constraints and performancecriteria for design of PID controllers. It is shown that robustnessconstraints are essential, and that controller design basedon maximization of performance criteria without robustnessconstraints give poor controllers. It is also shown thatthe robustness constraints have a significant influence on theperformance, and that the performance ofte

Är alla marginaliseringar likvärdiga?

This article discusses the theoretical concept of intersectionality from a queer perspective and argues for a broader understanding of that specific term.

Design side by side

The starting point for most of what is written here is people with disabilities. Situations of great difficulty need to be highly prioritized, for their own sake and also because that which first appears to be “special” sooner or later comes to benefit so