The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Peri‐operative SARS‐CoV‐2 infection increases postoperative mortality. The aim of this study was to determine the optimal duration of planned delay before surgery in patients who have had SARS‐CoV‐2 infection. This international, multicentre, prospective cohort study included patients undergoing elective or emergency surgery during October 2020. Surgical patients with pre‐operative SARS‐CoV‐2 infection...
The design of a routing protocol for the provision of quality of service (QoS) guarantee in mobile ad hoc network is basically a difficult task. In this paper, we propose a QoS routing protocol based on path robustness. The durability of a path and end-to-end delay are used as a measure of path robustness. As the topology of such a network is highly dynamic, the links are susceptible to frequent failures...
This paper presents a design for an on-chip high-speed clocked-comparator for high frequency signal digitization. The comparator consists of two stages, amplification and regenerative, comprising a total of 10 MOS transistors. The design is implemented in 65nm CMOS technology. Also, the paper presents a new cost effective technique for measuring the maximum speed of the clocked comparator. The measurement...
The design of a routing protocol for the provision of quality of service (QoS) in a mobile ad hoc network is a challenging task. In this paper, we propose a routing protocol that tries to satisfy QoS requirements in terms of bandwidth and end-to-end delays of a flow of packets in a time division multiple access (TDMA) based ad hoc network. Our protocol tries to identify a path that avoids hidden terminal...
A novel method utilizing state space neural network (SSNN) with adaptive filters is proposed to estimate the traffic flow parameters. The SSNN's network topology is derived from delays and stops estimation problem, so the design of SSNN reflects the relationships that exist in physical traffic systems. To improve SSNN effectiveness, the adaptive filters is proposed to train the SSNN instead of conventional...
Phase truncation is a supplemental technique to help decrease the delay at signalized intersections in unusual flow restriction, by re-allocating the unusable green time to other phases. Previous studies have shown how to implement phase truncation in NEMA controllers with multiple rings and reported it to work well. Nevertheless, it is unclear whether phase truncation will always be beneficial. With...
In this work we consider scaling of fractional delay filters using the Farrow structure. Based on the observation that the subfilters approximate the Taylor expansion of a differentiator, we derive estimates of the L2-norm scaling values at the outputs of each subfilter as well as at the inputs of each delay multiplier. The scaling values can then be used to derive suitable wordlengths in a fixed-point...
FIR filters are often used because of their linear-phase response. However, there are certain applications where the linear-phase property is not required, such as signal energy estimation, but IIR filters can not be used due to the limitation of sample rate imposed by the recursive algorithm. In this work, we discuss multiplierless implementation of minimum order, and therefore nonlinear-phase, FIR...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.