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[Context and Motivation] The main role of requirements engineering (RE) is to guide development projects towards implementing products that will appeal to customers. To effectively achieve this RE needs to be coordinated with and clearly communicated to the later software development activities. [Question/Problem] Communication gaps between RE and other development activities reduce coordination a
Cloud applications are often subject to unexpected events like flash crowds and hardware failures. Without a predictable behaviour, users may abandon an unresponsive application. This problem has been partially solved on two separate fronts: first, by adding a self-adaptive feature called brownout inside cloud applications to bound response times by modulating user experience, and, second, by intr
Perspectives on the Entangled History of Communism and Nazism. A Comnaz Analysis is an anthology raising questions about moral equivalalence and comparability when it comes to the Communist and National Socialist dictatorships. The authors in the book analysis the entanglement of Communism and Nazism both as historical subjects and as historical and social memories.
Clustering is a key concept of existing MIMO channel models, such as the COST 2100 model. Parameter based clustering has been studied for a while, but how parameter based clusters relate to the physical environment is not well known yet. A measurement based ray launching tool is developed and used for studying clustering and its relation to physical scatterers. By using estimated angles and delays
Construction of the MAX IV facility started in 2010 and commissioning is expected to begin in 2014. Once com- pleted, the facility will include two storage rings for the production of synchrotron radiation. The 3 GeV ring will house insertion devices for the production of x-rays, while the 1.5 GeV ring will serve UV and IR users. Recently, the lattice and optics of the 1.5 GeV storage ring have be
The problem of burst losses in OBS networks has an impact on the service quality perceived by end users. In order to guarantee certain level of Service Quality (QoS) in terms of burst losses, wavelength resources have to be dimensioned properly. In this paper, we address the problem of the Virtual Topology (VT) design that concerns the establishment of explicit routing paths and the allocation of
This article presents an architecture of a Digital Front-End Receiver (DFE-Rx) for the next-generation mobile terminals. A main focus is placed in flexibility, scalability and concurrency. The architecture is capable of detecting, synchronizing and reporting carrier-frequency offset, of multiple concurrent radio standards. The proposed receiver is fabricated in a 65nm CMOS low power high-VT cell t
Popular Abstract in Swedish 10.SWEDISH SUMMARY(Populärvetenskaplig sammanfattning) Proteiner är viktiga byggstenar i cellen och är uppbyggda av kroppens tjugo olika aminosyror. Varje protein har en unik egenskap och spelar en viktig roll för cellens funktion. Vissa proteiner löser sig i vatten (hydrofila) medan andra är olösliga (hydrofoba). Membranproteiner är hydrofoba proteiner som är inbäddadeMembrane proteins are crucial components of the cell and are involved in many biological processes. Recombinant overexpression systems together with different purification methods are necessary to obtain large amounts of purified receptor for biophysical and functional studies. More knowledge about membrane proteins, and especially G-protein coupled receptors, would facilitate the development of i
Abstract in UndeterminedPower efficiency has become the most important consideration for many modern computing devices. In this paper, we examine power efficiency of a range of graphics algorithms on different GPUs. To measure power consumption, we have built a power measuring device that samples currents at a high frequency. Comparing power efficiency of different graphics algorithms is done by m
Creation and adoption of corporate policies requires significant commitment of scarce senior management resources. In the absence of processes and tools, convergence upon final policy and may not be achieved in a timely manner. Significant similarities between policy and requirements documents suggest that requirements engineering techniques could be used to generate policy. However, neither evide
Abstract in Chinese 戰爭是人類歷史活動最激烈的場合，而戰爭史亦曾經在古典歷史著作中佔有重要篇幅。傳統的戰爭史最集中、最尖銳地反映了歷史必然性和偶然性的衝突，個人主觀意志與客觀環境局限性的衝突，及伴隨著暴力出現的人性美德與劣根性的衝突，在今天仍具有研習價值。然而戰爭史與主流學科也存在日趨脫節的問題，研習者的專業興趣有時與外界學術環境及價值觀的變化未能對上口徑。 引進戰略文化（strategic culture）的研究方向，可以為戰爭史研究與國際關係、社會學及文化研究提供科際整合的橋樑。文化如何影響國際社會間的決策和行為，近年日益受到學術關注。過去學界曾普遍相信結構決定行為，因此國際無政府狀態(international anarchy)被認為是現實主義（realism）行為模式的結構性根源。然而隨著結構主義（structuralism）及相關的學說受到挑戰，一部分國際關係
The supply of fresh food is being transformed: retailers are gaining increasing power and control from manufacturers and the location and nature of production is evolving. This new title, based on groundbreaking research, will enable logistics professionals to recognise the opportunities available in this changing market and successfully manage change in the supply chain. The international practi
This paper presents an analysis on energy dissipation of a digital half band filters operated in the the sub-threshold (sub-VT ) region with throughput constraints. The degradation of speed in the sub-VT domain is counteracted by unfolding the architectures. A filter is implemented in a basic 12-bit and its various unfolded structures. The designs are synthesized in a 65 nm low-leakage high-thresh
Wireless communication using very-large multiple-input multiple-output (MIMO) antennas is a new research field, where base stations are equipped with a very large number of antennas as compared to previously considered systems. In theory, as the number of antennas increases, propagation properties that were random before start to become deterministic. Theoretical investigations with independent id
This paper presents a highly parallelized MIMO signal detection algorithm targeting vector-based reconfigurable architectures. The detector achieves high data-level parallelism and near-ML performance by adopting a vector-architecture-friendly technique - parallel node perturbation. To further reduce the computational complexity, imbalanced node and successive partial node expansion schemes in con
This paper presents a double directional analysis of vehicle-to-vehicle channel measurements conducted in two different traffic environments. Using a high-resolution algorithm, we derive channel parameters like angle-of- arrival, angle-of-departure, propagation delay and Doppler’s spread and identify underlying propagation mechanisms by combining these estimates with maps of the measurement sites.
