This paper addresses the implementation of indoor real-time localisation system (RLTS) using wireless sensor\ud
networks. A RLTS consists of anchor nodes (i.e. nodes with fixed and known locations), beacon nodes and a location\ud
engine: the beacon node to be localised sends a packet which is captured from some anchor nodes, the anchor nodes\ud
forward the information extracted from the packet to the location engine for the estimation of the position of the\ud
transmitting beacon node. The authors present an algorithm that achieves beacon node localisation accuracy of a few\ud
metres in indoor environments. The algorithm is based on two steps: in the first step, the algorithm computes the\ud
ranging between anchor nodes and beacon node, in the second one, the algorithm estimates the beacon node\ud
localisation. The received signal strength indicator (RSSI) is used for the ranging estimation. The proposed approach\ud
avoids dedicated and expensive devices, which are used for the synchronisation between beacon and anchor nodes, to\ud
compute the time-of-flight of the signal. The authors introduce a confidence parameter for improving accuracy\ud
(based on the standard deviation of the RSSI), and an anchor nodes selection strategy for tackling the problem of nonline-\ud
of-sight communication between nodes
We reviewed all cases of unusual clinical metastases of renal cell carcinoma found in the English literature. The percentages of usual and unusual clinical metastases are compared with data of some large autopsy series. The involvement of various organs is considered and some metastatic modes and patterns are reported. The analysis shows that clinical metastases are obviously underdiagnosed. Correct staging based on careful clinical investigations is paramount for optimal management of metastatic renal cancer.
The anterior ileal conduit reduces the technique complication rate and facilitates the treatment of complications, and it is a recommended operation for these reasons.
The paper describes how, on behalf of Ansaldo Energia Spa, a multidisciplinary team developed a methodology based on Industry 4.0 technologies, an approach that allows rescue teams to quickly intervene in the event of a man-down in isolated areas of the plant, where the unfortunate person would risk being found with significant delay and consequent problems for his physical well-being. Under the supervision of the team, a highly specialized supplier created a suitable hardware and software device to achieve this outcome. Such a device can immediately warn rescue crews in real time as soon as an incident occurs, as well as geo-locate the man on the ground with exceptional precision.Once developed, the approach was standardized in a set of sequential and generic procedures in order to make it adaptable to any sort of firm, construction site, or workshop where a man-down event may happen. The methodology is set up as a real toolkit to protect operators from severe damage that can result from long waits for rescue teams, whenever operators experience negative events for their safety being them exogenous (fainting illnesses, heart attacks, epileptic attacks, strokes, etc.) or endogenous (accidents in the workplace).
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