SUMMARY Tests made of the sensory-perceptual, cognitive, and psychomotor abilities of untreated young patients with essential hypertension have revealed a pattern suggesting a slight functional impairment of the central nervous system. Reduced performance was most marked for those tasks requiring speed arid psychomotor coordination, particularly when the behaviors observed were self-initiated. Lowered scores were more evident among female hypertensives; no differences in performance by race were noted. The deficits measured by these sensitive tests do not appear to be great enough to intrude on everyday activity nor to impair work ability. Changes that may result from blood-pressure-lowering therapies will require further study. (Hypertension 4: 355-360, 1982) KEY WORDS • mild hypertension • behavioral consequences • psychological tests
This paper presents the results of the joint Intel/ Nimbus Low Power-Wide Area (LPWA) technology PoC deployment in smart cities context. The PoC deployment addresses the problem of river Liffey monitoring in Dublin city center. We deployed a buoy on the Liffey river in Dublin for duration of 8 months. The deployed buoy embeds many sensors inside the hull enclosure and outside. The data captured is, from the water: depth, temperature and velocity; from inside the hull: temperature, humidity and barometric pressure; from the GPS unit: location and timestamp; and from the system: battery voltage. The buoy also embeds a LoRa-based LPWA transceiver and a 3G modem for backup. The paper gives an insight of the results obtained in terms of range and data consistency and gives conclusions on the use of LPWA technologies in the context of smart cities.
This paper is based on a presentation made at the IAIN International Navigation Congress held in Sydney, Australia, in February 1988. The global positioning system (GPS) offers a new opportunity for the automation of aircraft landing systems. The position and velocity measurements provided by a state-of-the-art GPS receiver using the C/A code and working in a normal or differential mode (D-GPS) and aided by one or two ground-based PseudoLites (PLS), may be able to satisfy the landing accuracy requirements of the FA A.This paper describes the design and simulation of an aircraft automatic landing system. Aircraft position and velocity are assumed to be measured using a (carrier-tracking) GPS receiver. The hypothesized capability is based on measurements taken at Stanford and elsewhere, using the Trimble 4000SX, five-channel receiver in an integrated-doppler-aiding mode. For some of the autopilot designs, either ground-based GPS transmitters (pseudolites) or a radar altimeter have also been incorporated.Included in the landing simulations are wind shears and a gust model, creating realistic landing situations. The performances of the lateral and vertical displacements are presented with their \a r.m.s. estimation errors during the glide-slope and flare phases. Included are different wind conditions, GPS configurations and controllers. The results are compared with the FAA requirements for various categories of automatic landing systems.
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