Pre-equalization technique enabling 70 Gbit/s photonic-wireless link at 60 GHz.

In this paper, we demonstrate a 70 Gbit/s photonic-based wireless link at 60 GHz using a single RF carrier and a single polarization. This high capacity is achieved by using 32QAM modulation with a symbol rate of 14 GBd. We show a novel pre-equalization technique that enables usage of such very high bandwidths at 60 GHz. Our work indicates that the consumer oriented 60 GHz band could be a viable alternative to more expensive E-band or sub-THz links for high capacity photonic wireless transmission, mobile backhauling and last-mile high-capacity connections.

Plasmonic phased array feeder enabling ultra-fast beam steering at millimeter waves.

In this paper, we demonstrate an integrated microwave phoneeded for beamtonics phased array antenna feeder at 60 GHz with a record-low footprint. Our design is based on ultra-compact plasmonic phase modulators (active area <2.5µm2) that not only provide small size but also ultra-fast tuning speed. In our design, the integrated circuit footprint is in fact only limited by the contact pads of the electrodes and by the optical feeding waveguides. Using the high speed of the plasmonic modulators, we demonstrate beam steering with less than 1 ns reconfiguration time, i.e. the beam direction is reconfigured in-between 1 GBd transmitted symbols.

[The short- and long-term results of the "Intensive Care" of 160 sick neonatal foals]. / De korte- en lange-termijn-resultaten van 'Intensive Care' van 160 pasgeboren zieke veulens.

The short- and long-term results of admission to the 'Neonatal Intensive Care Unit' (ICU) at the Department of Equine Sciences of the Utrecht University were evaluated. The patients were categorized, based on specific criteria, into different groups: 'Sepsis', 'Pneumonia', 'Enteritis', 'Asphyxia', 'Premature', 'Isoerythrolysis', and 'Equine herpes virus (EHV)'. The survival rate and mean duration of hospitalization were determined for each group. The venous blood variables at admission were compared for 'surviving' and 'non-surviving' foals within groups, between groups, and for the overall group. From 1992 to 2001, 160 critically ill foals (younger than 7 days) were admitted to the ICU. Thirty-six percent of the foals survived. The mean duration of hospitalization was 6.6 days for the 'surviving' foals and 3.0 days for the 'non-surviving' foals. The pCO2 appeared to the the most important diagnostic and prognostic variable. The results of a telephone questionnaire (owner response of 81 %) revealed that in the long term 60% of the surviving foals lived up to the owner's expectations.