| 1. |
- Wireklint Sundström, Birgitta, et al.
(författare)
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”Nationella riktlinjer behövs för ambulanspersonal”
- 2017
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Ingår i: Svenska Dagbladet. - 1101-2412. ; :2017-06-29
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Det är förödande att sänka kraven på ambulanspersonal. Därför efterlyser vi nationella riktlinjer och beslut som tydligt anger en lägsta utbildningsnivå för anställning inom ambulanssjukvården, skriver Nätverket för utbildning av ambulanssjuksköterskor i en slutreplik.
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| 2. |
- Damianou, Andreas, et al.
(författare)
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A Top-Down Approach for a Synthetic Autobiographical Memory System
- 2015
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Ingår i: BIOMIMETIC AND BIOHYBRID SYSTEMS, LIVING MACHINES 2015. - Cham : Springer. - 9783319229799 - 9783319229782 ; , s. 280-292
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Konferensbidrag (refereegranskat)abstract
- Autobiographical memory (AM) refers to the organisation of one's experience into a coherent narrative. The exact neural mechanisms responsible for the manifestation of AM in humans are unknown. On the other hand, the field of psychology has provided us with useful understanding about the functionality of a bio-inspired synthetic AM (SAM) system, in a higher level of description. This paper is concerned with a top-down approach to SAM, where known components and organisation guide the architecture but the unknown details of each module are abstracted. By using Bayesian latent variable models we obtain a transparent SAM system with which we can interact in a structured way. This allows us to reveal the properties of specific sub-modules and map them to functionality observed in biological systems. The top-down approach can cope well with the high performance requirements of a bio-inspired cognitive system. This is demonstrated in experiments using faces data.
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| 3. |
- Ek, Staffan, et al.
(författare)
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A 28-nm FD-SOI 115-fs Jitter PLL-Based LO System for 24-30-GHz Sliding-IF 5G Transceivers
- 2018
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Ingår i: IEEE Journal of Solid-State Circuits. - 0018-9200. ; 53:7, s. 1988-2000
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Tidskriftsartikel (refereegranskat)abstract
- A system for local oscillator (LO) signal generation in 5G millimeter-wave (mmW) multi-antenna transceivers is presented. The system is modular with one phase locked loop (PLL) per antenna element transceiver, and a test circuit implemented in 28-nm fully depleted silicon on insulator (FD-SOI) CMOS features two such PLLs and a 491.52 MHz crystal oscillator (XO) generating a common frequency reference. A fractional-N architecture is employed to achieve high-frequency resolution, and the quantization noise is reduced using a novel frequency divider, which achieves full integer resolution while still using a pre-scaler. The system covers the 3rd Generation Partnership Project (3GPP) bands n257 and n258, achieved by a digital coarse tuning of the voltage-controlled oscillator (VCO). The chip area of each PLL is 0.11 mm², and 0.029 mm² for the XO. The total power consumption of the system is 35 mW, where each PLL consumes 15.4 mW and the XO consumes 0.84 mW. The total rms jitter from 20-kHz to 500-MHz offset for a 26-GHz carrier is just 115 fs, corresponding to an FOMj of -244 dB, which is the best reported figure for a fractional-N PLL above 15 GHz. The error-vector magnitude (EVM) due to phase noise is -34.6 dBc using an orthogonal frequency-division multiplexing (OFDM) signal with 120-kHz sub-carrier spacing, sufficient to support 256 QAM.
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