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T-shape slot induced decoupling for closely spaced dual PIFAs in MIMO terminals
In this paper, an efficient technique to enhance the isolation between two closely spaced PIFAs for MIMO mobile terminals is introduced. The proposed decoupling method is based on a T-shape slot impedance transformer and it enables an inter-PIFA spacing of 1 mm to be achieved. The 10 dB impedance bandwidth and 20 dB isolation bandwidth cover the 2.4 GHz WLAN band (2.4-2.48 GHz), with a maximum iso
Production of polyhydroxyalkanoates in biological treatment of industrial wastewaters
In search of more environmentally friendly polymer materials, polyhydroxyalkanoates (PHAs) have been considered as promising candidates. PHAs exhibit a broad range of material properties, can be produced from renewable resources and are completely biodegradable. Nevertheless, high production costs associated with traditional PHA production based on fermentation by pure microbial cultures have so f
Trace analysis of thick samples by proton-induced X-ray emission
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Säpo går i förväg.
Jag får ofta frågan om den här övervakningshysterin som diskuterats högt och ljudligt senaste tiden faktiskt berör gemene man. Det är en bra fråga. Svaret är att det är oklart. Hela övervakningsfrågan är en balansgång mellan sådant som effektivitet i brottsbekämpning och allas vår personliga integritet.
Scattering of transient electromagnetic waves in reciprocal bi-isotropic media
In this paper propagation of transient electromagnetic waves in a reciprocal bi-isotropic medium is presented. The constitutive relations are convolution integrals with two susceptibility kernels that model the medium. The propagation problem is solved by the introduction of a wave-splitting technique. This wave-splitting is used to solve the propagation problem using either an imbedding approach
Effect of moisture variations on creep of structural timber
Flerbottand tibetfilm
Internationalisation of Education and Comparative Studies through the Use of ICT
Alternative Dynamic Programming Approaches to Obtain Upper Bounds for the Economic Lot Scheduling Problem
Multimodal magnetic resonance imaging increases the overall diagnostic accuracy in brain tumors.
A new generation of regional climate model scenarios for the Baltic Sea area.
Comparison of the optical efficiency of a wide and a narrow absorber fin in an asymmetric concentrating collector.
Jerusalem mitt i byn. Det tidigmedeltida kyrkobyggandet ur rituellt perspektiv.
The stone churches of the early medieval period are commonly supposed to have been built at the instance of society’s upper echelon, the buildingsthemselves being seen as symbolic proclamations of the social hegemony of the class concerned. The present article seeks to broaden the perspective regarding both the prime movers of church building and their motives. The building of a church required th
Svenska antonymer: tre olika sätt att angripa skillnaden mellan bra och dåliga antonymer
Institutional challenges to knowledge sharing across national and intra-organizational boundaries; Case studies of IKEA and SCA
Utrustningsnivån för Ögonsjukvård inom den Skandinaviska Primärvården: Betydelse för Läkarutbildningen
Development of a Framework for Quality Assurance of Performance-based Fire Safety Designs
In this paper, some fundamental problems concerning the verification of fire safety engineering designs based on performance-based building regulations are discussed. It can be questioned if the approach taken by many practitioners today is sufficient to fulfil the requirements laid out in the building code, i.e. society’s demand for fire safety. Examples of this deficiency are that interdependenc
A Grassmanian approach to the Hankel norm approximation problem
This paper concerns the unifying framework to strictly contractive extension problems, which is usually referred to as the band method. The solution to the so-called strictly contractive extension problem in this abstract framework, when applied to a certain concrete case, yields a complete characterization of solutions to the sub-optimal Nehari problem. The sub-optimal Hankel norm approximation p