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The Pneumatic Hybrid Vehicle - A New Concept for Fuel Consumption Reduction

Popular Abstract in Swedish Dagens samhälle är väldigt beroende av fordon av olika slag. Aldrig förr har människor rest till olika delar av världen, så mycket som idag. Den enorma mängden resors och transporter som sker varje dag är en tung belastning för vår natur. Bilar och lastbilar, som ökar i antal varje dag, släpper ut giftiga avgaser på vägarna och flygplan förbrukar enorma mängder fossilt Urban traffic involves frequent acceleration and deceleration. During deceleration, the energy previously used to accelerate the vehicle is mainly wasted on heat generated by the friction brakes. If this energy that is wasted in traditional internal combustion engines (ICE) could be saved, the fuel economy would improve. Today there are several solutions to meet the demand for better fuel economy

The acute pain service – roles and challenges.

cute pain services were introduced more than 20 years ago as an organizational attempt to meet shortcomings in postoperative pain management. The acute pain service concept received immediate and strong support from a large number of medical and health-care organizations around the world. Literature reviews indicate that 30–70% of North-American and European hospitals, depending on size and academ

Asymmetry Effects in Chinese Stock Markets Volatility: A Generalized Additive Nonparametric Approach

The unique characteristics of the Chinese stock markets make it difficult to assume a particular distribution for innovations in returns and the specification form of the volatility process when modeling return volatility with the parametric GARCH family models. This paper therefore applies a generalized additive nonparametric smoothing technique to examine the volatility of the Chinese stock mark

Forward scattering properties of periodic metamaterials

Forward scattering measurements of periodic metamaterials are investigated. A sum rule for forward scattering is derived using the optical theorem and analytic properties of Herglotz functions. It shows that the absorbed and scattered power over all wavelengths from a periodic metamaterial is related to the static polarizability per unit cell. The theoretical results are verified by a parallel pla