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In this paper, we take a fundamental look at the interference characteristics of a lens-based millimeter-wave (mmWave) multiuser multiple-input multiple-output system (MU-MIMO) system. We consider a hybrid architecture, implemented via a bank of radio-frequency (RF) switches which perform beam selection followed by low-complexity uplink maximum-ratio combining (MRC) at baseband. Considering a Rotm

We consider a massive multiple-input multiple- output system with minimum-mean-squared-error processing on the uplink. A novel analytical framework is proposed to approximate the instantaneous signal-to-interference-plus-noise- ratio (SINR) of an arbitrary user terminal, as well as, the system sum spectral efficiency. Unlike previous studies, our methodology considers spatially correlated Ricean f

We present the development of a gas nozzle providing high-density gas at elevated temperatures inside a vacuum environment. Fused silica is used as the nozzle material to allow the placement of the nozzle tip in close proximity to an intense, high-power laser beam, while minimizing the risk of sputtering nozzle tip material into the vacuum chamber. Elevating the gas temperature increases the gas-j

The present thesis aimed to shed more light on the notion of acute inhibition of extracellular-signal regulated kinase (ERK)1/2 pathway as a treatment to improve stroke recovery. Stroke is a major cause of death and long-term disability worldwide, classified as ischemic or hemorrhagic. In ischemic stroke, interruption of blood flow and deprivation of oxygen and glucose activate death signalling pa

Powder materials containing copper ions supported on ZSM-5 (Cu-Zeolite Socony Mobil-5) and SSZ-13 (Cu-Standard Oil synthesised zeolite-13), and predominantly CuO nanoparticles on amorphous SiO2 were synthesised, characterised, wash-coated onto ceramic monoliths and, for the first time, compared as catalysts for direct conversion of methane to methanol (DCMM) at ambient pressure (1 atm) using O2, N

BACKGROUND: Integrated health promotion improves clinical outcomes after hospital treatment. The first step towards implementing evidence-based health promotion in hospitals is to estimate the need for health promoting activities directed at hospital patients. The aim of this study was to identify the distribution and association of individual health risk factors in a Norwegian hospital population

Smoking and hazardous drinking are common and important risk factors for an increased rate of complications after surgery. The underlying pathophysiological mechanisms include organic dysfunctions that can recover with abstinence. Abstinence starting 3-8 weeks before surgery will significantly reduce the incidence of several serious postoperative complications, such as wound and cardiopulmonary co

A graphics-based information system for process control applications is presented. All pieces of information, such as plant documentation, controller structures, control algorithms and run-time data, are positioned on virtual screens. The user selects the information to be presented on his monitor by “moving” in front of these screens using joysticks. Hierarchically structured information is handl

The convergence properties of different updating methods for the multipliers in augmented Lagrangians are considered. It is assumed that the updating of the multipliers takes place after each line search of a quasi-Newton method. Two of the updating methods are shown to be linearly convergent locally, while a third method has superlinear convergence locally. Modifications of the algorithms to ensu

Proteomics, the detailed understanding of the role that proteins play in health and disease, is a necessary complement to genetic analysis. Rapid progress within the proteomics field has opened up possibilities for direct intervention in the medical and clinical area where diseases, disease progression and cause of disease can be investigated at a molecular level. This review introduces the proteo

The operator Riccati equation associated with a distributed parameter quadratic cost-linear dynamics control process is considered.Making use of ideas from transport theory, a derivation of a generalized version of the X-Y functions of radiative transfer is given, and it is seen that, under commonly occurring conditions, the new equations may be easier to numerically resolve than the original Ricc

In this thesis, we draw inspiration from both classical system identification and modern machine learning in order to solve estimation problems for real-world, physical systems. The main approach to estimation and learning adopted is optimization based. Concepts such as regularization will be utilized for encoding of prior knowledge and basis-function expansions will be used to add nonlinear model

The understanding of protein interactions to control phase and nucleation behavior of protein solutions is an important challenge for soft matter, biological and medical research. Here, we present ion bridges of multivalent cations between proteins as an ion-activated mechanism for patchy interaction that is directly supported by experimental findings in protein crystals. A deep understanding of e

The general aim of the research programme SPEAK (Sustainable Planning andEnvironmental Assessment Knowledge, www.speakproject.se) was to generateknowledge on, and to strengthen the role of strategic environmental assessment(SEA) in planning as a measure to attain the environmental quality objectives andto promote sustainable development. The SPEAK programme had atransdisciplinary point of departur

Research has been performed model the dynamics of different kinds of wastewater treatment systems. Plant models are built up from standard modules of subprocesses. Available model knowledge has been packaged into suitable software modules and a library of simulation models has been created. The paper describes this library and the kind of simulations that can be performed.

The purpose of this study is to compare three different methods for determining the thermal diffusivity of a one dimensional heat diffusion process. A modifiedA˚ngstro¨m's method, an on-line least squares method and a maximum likelihood method have been applied to data obtained from experiments on a long copper rod. The accuracy, the amount of computation, the storage capacity and in general the a