The purpose of this work is the enhancement of performance by a new design of monolithic heat exchangers under steady-state operating conditions. Heat transfer phenomena and hydrodynamics have been studied and visualized by computational fluid dynamics (CFD). Further, a simple gas distribution system has been analyzed in purpose to find the best performance of the exchanger. To achieve this, 3D si

The understanding of condensation of multiple bubbles is of importance to improve the continuum models for the large-scale subcooled flow boiling. The CFD modeling for condensation of multiple bubbles has been developed with the Volume of Fluid (VOF) method in this work. An explicit transient simulation is performed to solve the governing equations along with the VOF equation and source terms for

The effect of initial texture on the stored energy is investigated. Uniaxially loaded polycrystalline materials with initial textures based on the Goss component and the Brass component are analyzed. For reference purposes a single crystal and an initial isotropic crystal orientation distribution are also analyzed. Special attention is directed at the thermomechanical behavior of polycrystalline m

MIMO technology has facilitated tremendous performance improvements in wireless communications, allowing the data rate to increase linearly with the number of antennas used, at no additional expense in transmit power or spectrum. However, the tremendous performance gain can only be achieved by multi-antenna designs that provide low coupling and correlation, as well as high total efficiency. Such d

Despite the recognised importance of the concept of acceptance, how and why new technologies are actually accepted by drivers is not well understood. While many studies claim to have measured acceptance, few have defined what it is. The chapter points out the importance of defining acceptance and categorizes the definitions that have been used according to their “essence” and the various dimension

Using the molecular imprinting approach, we have shown that polyacrylamide-based artificial antibodies against human and bovine hemoglobin have a very high selectivity, as revealed by the free-zone electrophoresis in a revolving capillary. By the same technique we have previously synthesized gel antibodies not only against proteins but also against viruses and bacteria. The synthesis is thus unive

The Ziegler-Nichols step response method is based on theidea of tuning controllers based on simple features of thestep response. In this paper this idea is investigated fromthe point of view of robust loop shaping. The results are:insight into the properties of PI and PID control andsimple tuning rules that give robust performance for processes with essentially monotone step responses.

Background: Patients with alcohol and other drug use disorders (AOD) frequently have multiple social, physical, and mental health treatment needs, yet have difficulty accessing community services, including drug abuse treatment. One strategy for linking patients with AOD with relevant services is case management, where a single case manager is responsible for linking patients with multiple relevan

Popular Abstract in Swedish Kvinnor som har slutat röka löper ökad risk att drabbas av bröstcancer. Denna slutsats baseras på en uppföljning av drygt 10.000 kvinnor som på 70- och 80-talen deltog i en hälsoundersökning på avdelningen för Förebyggande Medicin i Malmö. Genom att samköra denna databas med det svenska cancerregistret har det varit möjligt att spåra hur många av rökarna, ex-rökarna ochEx-smokers are exposed to a higher breast cancer risk than are never smokers. This conclusion is based on a follow-up of the 10 902 women in the Malmö Preventive Project. The 31% higher incidence in ex-smokers remained statistically significant when other risk factors were taken into account in the analysis. In both smokers and ex-smokers there was an increased incidence of oestrogen receptor nega

This paper presents a quadrature VCO implemented in a standard 0.35µm CMOS process. The VCO draws 16mA from a 1.3V power supply, can be tuned between 1.91 GHz and 2.27GHz, and displays a phase noise of -140dBc/Hz or less at 3MHz offset frequency from the carrier, for a minimum phase-noise figure-of-merit of 184 dB. The maximum departure from quadrature between the VCO phases is 0.6°.

In this chapter we explore how a decarbonized green state might develop. Climate governance provides venues towards decarbonization and for greening the state by steering and enabling transformative social change. We study low-carbon transitions in Sweden in a set of policy sectors for their potential to reduce carbon emissions, spur innovation and enter policy paths towards decarbonization. Swede

A group of 51 cases with teenage anorexia nervosa (AN; including a total population of cases from one birth cohort) were compared with a sex-, age-, and school-matched group of 51 cases on familial factors. The subjects were examined at age 16 and 21 years. In the first study, mothers of both groups were interviewed regarding physical and psychiatric disorders among first-degree relatives. In the

The clinical symptomatology and pathogenic mechanisms of chronic traumatic brain injury associated with boxing (CTBI-B) is reviewed. This syndrome is also known as punch drunk syndrome or dementia pugilistica. Since even milder forms of CTBI-B are rare among amateur boxers, we make a distinction between amateur and professional boxing throughout the review. Focus is also set on the interesting sim

The response of soil organic matter (OM) decomposition to increasing temperature is a critical aspect of ecosystem responses to global change. The impacts of climate warming on decomposition dynamics have not been resolved due to apparently contradictory results from field and lab experiments, most of which has focused on labile carbon with short turnover times. But the majority of total soil carb