Leave-in-Time is a new rate-based service discipline for packet-switching nodes in a connectionoriented data network. Leave-in-Time provides sessions with upper bounds on end-to-end delay, delay jitter, buffer space requirements, and an upper bound on the probability distribution of endto-end delays. A Leave-in-Time session’s guarantees are completely determined by the dynamic traffic behavior ...

—We propose an energy-efficient network architecture that consists of ad hoc (mobile) cognitive radios (CRs) and infrastructure wireless sensor nodes. The sensor nodes within communications range of each CR are grouped into a cluster and the clusters of CRs are regularly updated according to the random mobility of the CRs. We reduce the energy consumption and the end-to-end delay of the sensor ...

The evolutionary conserved NSL complex is a prominent epigenetic regulator controlling expression of thousands of genes. Here we uncover a novel function of the NSL complex members in mitosis. As the cell enters mitosis, KANSL1 and KANSL3 undergo a marked relocalisation from the chromatin to the mitotic spindle. By stabilizing microtubule minus ends in a RanGTP-dependent manner, they are essent...

We propose new burst assembly schemes and fast reservation (FR) protocols for Optical Burst Switched (OBS) networks that are based on traffic prediction. The burst assembly schemes aim at minimizing (for a given burst size) the average delay of the packets incurred during the burst assembly process, while the fast reservation protocols aim at further reducing the end-to-end delay of the data bu...

Networked video sensors need to execute two dependent periodic tasks: video encoding and transmission. The dependency and periodicity often result in small idle intervals of CPU and wireless network interface card (WNIC). In this paper, we present a sender-buffering approach to exploit such idle intervals for energy saving. Specifically, a video sensor encodes frames in a timely fashion, but bu...

The paper investigates the QoS performance with service differentiation of the wavelength-routed optical burst switched (WR-OBS) network architecture. The request scheduler was analysed as the means of the QoS provisioning and impact of the request scheduling on the QoS performance was investigated in terms of the burst blocking probability and burst end-to-end delays. The WROBS QoS performance...

The Differentiated Services architecture allows providing scalable Quality of Service by means of aggregating flows to a small number of traffic classes. Among these classes a Premium Service is defined, for which end-to-end delay guarantees are of particular interest. However, in aggregate scheduling networks such delay bounds suffer significantly from effects that are due to multiplexing of f...

Low energy consumption has always been the most important main issue in wireless sensor networks. But many applications requiring low latency and high throughput have been emerged recently. Many existing duty-cycle MAC protocols such as S-MAC [1] and T-MAC [2] provide good power efficiency but introduce significant end-to-end delay. In this paper, we proposed an energy and delay efficient duty-...

With an estimated 19 million operations performed annually, cataract surgery is the most common surgical procedure. This paper investigates the automatic monitoring of tool usage during a cataract surgery, with potential applications in report generation, surgical training and real-time decision support. In this study, tool usage is monitored in videos recorded through the surgical microscope. ...

Energy is the most crucial but scarce resource in wireless sensor networks (WSNs). A wealth of MAC protocols are proposed only to prolong the network lifetime for energy-efficiency; whereas, others are tailored to reduce end-to-end latency in addition to extending the network lifetime. Since the requirements depend on the applications of the network, it would be difficult to design a single MAC...