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Determination of Heavy Metals and Fluorine in Airborne Particulate Matter in an Indoor Environment by Simultaneous Use of PIXE and γ-Ray Detection

The current rapid development within work-environment research has created a considerable demand among industrial hygienists for suitable analytical methods. PIXE (particle-induced X-ray emission analysis), which was introduced in Lund in 1970, has been shown to be a feasible method for use in studying the elemental composition of aerosols. However, in some work environments, fluorine, an element

A charge sampling mixer with embedded filter function for wireless applications

A charge sampling mixer with embedded and programmable filter function is described, which is not based on the conventional sub-sampling but the proposed bandpass charge sampling (BPCS) principle. A BPCS circuit samples a radio signal by integrating the weighted current of the clocked radio signal in n clock cycles. The large sampling capacitor used in the circuit results in low noise and low char

Medias roll vid effektivitetsrevision i statsförvaltningen

Vid effektivitetsrevision i statsförvaltningen används genomslag ofta som ett mått på framgång för en NAO (National Audit Office). Media spelar en viktig roll för genomslaget, i synnerhet när det saknas beredningskrav för granskningarna i riksdagen. Relationen till media kan vara problematisk på flera vis och äventyra granskningsmyndighetens oberoende och trovärdighet. I detta papper diskuteras m

Quality in Internationalizing Higher Education - a Pedagogical Issue that Needs to be Addressed from a Pedagogical Perspective

Description: It is stated that even though plentiful of studies over the last decades have been concerned with internationalization in/of higher education, it has not been from the perspectives from the teachers and students and their experiences of aspects of internationalization in relation to their educational context (that is, as a student, and as a teacher). To emphasize the quality dimension

The role of design of experiments in predictive design analysis

During recent years the increasing power of computers has led to the use of more sophisticated analysis tools within the mechanical engineering design process, or design process for short. Projects whose objective has been to introduce the Finite Element (FE) analysis into the early phases of the design process have been carried out at the Department of Machine Design, see e.g. [1]. These works cl

Requirements and Use of In-service Information in an Engineering Redesign Task: Case Studies from the Aerospace Industry

This paper describes the research stimulated by a fundamental shift that is occurring in the manufacture and marketing of aero engines for commercial and defence purposes, away from the selling of products to the provision of services. This research was undertaken in an aerospace company, which designs and manufactures aero engines and also offers contracts, under which it remains responsible for