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The development and validation of a simulation tool for assessment of the use of and costs for energy in paper drying processes

This report includes a description of a newly developed simulation tool for energy mapping of different paper drying processes. The simulation tool includes models for three different types of paper dryers and for a coating station and various units used for heat recovery. The models were developed in the block oriented simulation program Extend. The Extend software is briefly described and the eq

Spatial Frequency Sensitivity Differences between Adults of Good and Poor Reading Ability

purpose. To determine whether normal adults of good and poor reading ability exhibit different patterns of sensitivity to spatial frequency, as previously found between dyslexic and nondyslexic control subjects. methods. The visual acuity, spatial frequency sensitivity, and reading ability of 96 normal, nondyslexic adults was assessed. Participants were ranked according to reading ability. The to

Assessment of Long-Term Losses in Prestressed Concrete Structures - Application for Nuclear Reactor Containments

Most nuclear reactors, both in Sweden and worldwide, are enclosed by a prestressed concrete containment. The main purpose of the containment is to prevent any radioactive discharge to the environment in the event of a major internal accident. The performance and structural integrity of the containment depends on the compressive stresses induced in the concrete by the prestressing system. However,

Large acoustic transients induced by non-thermal melting of InSb

We have observed large-amplitude strain waves following a rapid change in density of InSb due to nonthermal melting. The strain has been measured in real time via time-resolved x-ray diffraction, with a temporal resolution better than 2 ps. The change from the solid to liquid density of the surface layer launches a high-amplitude strain wave into the crystalline material below. This induces an eff

Generation of Minimal Leakage Input Vectors with Constrained NBTI Degradation

Technology scaling has caused Negative Bias Temperature Instability (NBTI) to emerge as a major circuit reliability concern. Simultaneously leakage power is becoming a greater fraction of the total power dissipated by logic circuits. As both NBTI and leakage power are highly dependent on vectors applied at the circuit’s inputs, they can be minimized by applying carefully chosen input vectors durin

Thermodynamical and biological aspects of laser-induced heat treatment in medicine

Abstract in UndeterminedHeat has for long been utilised as a therapeutic tool in medicine. Tumour diseases and vascular malformations can be treated by elevating the temperature to cytotoxic levels. Laser-induced heat treatment relies on the conversion into heat of light absorbed in the tissue. Mathematical models were used to calculate the light absorption distribution and the subsequent temperat