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Aviation is an important driver of individual and global mobility and emissions associated with transports. Recent studies indicate that a relatively small, highly mobile part of society may account for a large share of the total distances travelled. This phenomenon is as yet insufficiently understood. In addressing this situation, the paper reviews the processes leading to growth in mobility, and
Sophia Elisabeth Brenner's poems in Swedish, German, Latin, Italian and French made her well-known in Sweden and internationally and she was called 'the tenth muse'. Her collected poems were published in 1713 and posthumously in 1732. The paper explores how Mrs. Brenner made use of classical mythology and history when composing poems in Swedish. Antiquity provided her with a treasure of motives, b
The aim of the RAID project (Robot for Assisting the Integration of the Disabled) is to develop and demonstrate a prototype robotic workstation for use by disabled people. The RAID project is part of the European Community TIDE program (Technology for the socio-economic Integration of disabled and Elderly people). The robotized system is intended primarily for vocational use in an office environ
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We are in the midst of “the critical decade”. It is now that our decisions and actions in relation to mitigation of and adaptation to climate change will determine the success or failure of decarbonisation transitions needed to avoid severe impacts of climate change. This is not solely a technological, social, economic or governance issue. Addressing climate change demands fundamentally different
We consider the problem of stabilizing and minimizing the disturbance response of a SISO LTI plant, subject to a stochastic disturbance, over an analog communication channel with additive white noise and a signal-to-noise ratio (SNR) constraint. The controller is linear, based on output feedback and has a structure with two degrees of freedom: One part represents sensing and encoding operations an
Theoretical predictions for ionization energies of inner core electrons generally come out much more accurately by taking the difference between the total energies of two self-consistent Hartree-Fock calculations than by using Koopmans' theorem. For the outer core electrons, on the other hand, little or no improvement over Koopmans' theorem is obtained from a `ΔSCF method'. We show here that the
A nonlocal continuum plasticity theory is presented. The nonlocal field introduced here is defined as a certain weighted average of the corresponding local field, taken over all the material points in the body. Hereby, a quantity with the dimension of length occurs as a material parameter. When this so-called internal length is equal to zero, the local classical plasticity theory is regained. In t
