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Planning for evaluation of low energy buildings´ performance after a few years of operating

Both within Europe and Sweden energy requirements gradually are becoming more stringent in order to increase the share of new buildings with low energy use. However, if the construction and property owners sectors shall make decisions, about larger investments within the field of low energy buildings, a complete evaluation of the buildings´ performance after a few years of operation is needed. Acc

A 57-dB image band rejection CMOS GmC polyphase filter with automatic frequency tuning for Bluetooth

A 7th order polyphase G/sub -m/C IF filter with automatic frequency tuning, implemented in a 0.35/spl mu/m CMOS process, is presented. The filter has a center frequency of 3MHz and a passband of 1MHz. The image band rejection is higher than 57dB, the stop band attenuation is at least 40dB. The in-band spurious free dynamic range is around 53dB. On-chip automatic frequency tuning provides more than

A Production Planning Model for a Steel Plate Fabrication Plant with Flexible Customization and Manufacturing

With increased market competition and advances in modern manufacturing technologies, requirements on customer orders and manufacturing conditions have become more diversified. This paper addresses a dynamic production planning problem for a steel plate fabrication plant with practical flexibility of both customers and manufacturing, such as steel slab-plate matching rules, plate substitution optio

A Nonlinear Observer for the Inverted Pendulum

This paper deals with the design of a nonlinear observer for the inverted pendulum. The observer uses the standard structure of the linear observer with the linear model replaced by a nonlinear model. Nominal observer gains are determined from a linearised model. This model is also used to find a compromise between robustness and performance. The stability of the observer is then discussed and con

Risk and Vulnerability Management of Electrical Distribution Grids

Risk and vulnerability management can serve a very important purpose as a decision support tool for investments and planning of electrical distribution systems. In 2006 amendments to the Swedish Electricity Act came into force, stating that every distribution system operator has to, on a yearly basis, perform a risk and vulnerability analysis regarding security of supply to customers. Furthermore,

Mannequin Properties Desired for Ergonomic Evaluation of Car Interiors

Mannequin properties desired for ergonomic evaluation of car interiors Lars Hansson, Kenneth Holmqvist, Simon Sjölander, Giovanni Distante, Guiseppe Andreoni, Nicholas Colford, Tomas Engström, Gert-Åke Hansson, Roland Kadefors, Patric Petersson, Camilla Rigotti, Lena Sperling, Anders Sundin, Per Östman, Roland Akselsson The aim of this study was to simulate a future mannequin with real people in