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Wireless sensor networks enjoy some unique characteristics. For example, sensor network are often autonomous, long-lived and rely on battery as the power source. In this paper, we thus improve the SOS kernel to address these unique characteristics. Firstly, we design and implement the hot-swapping capability in SOS that allows a module to be upgraded on the(More)
Recently, management of uncertain data draws lots of attention to consider the granularity of devices and noises in collection and delivery of data. Previous works directly model and handle uncertain data to find the required results. However, when data uncertainty is not small or limited, users are not able to obtain useful insights and thereby tend to(More)
Macroscopically, a polymer-stabilized blue phase liquid crystal (BPLC) is assumed to be an optically isotropic medium. Our experiment challenges this assumption. Our results indicate that the optical rotatory power (ORP) of some nano-scale double-twist cylinders in a BPLC composite causes the polarization axis of the transmitted light to rotate a small(More)
A vertical handoff occurs when a multi-homed mobile host roams from a network to another heterogeneous network. Nevertheless, the network before and after a vertical handoff usually have drastic different characteristics. In this paper, we proposed an end-to-end based Vertical-handoff Aware TCP, called VA-TCP, which promptly adapts TCP behavior during a(More)
In recent years, online social networks have been dramatically expanded. Active users spend hours communicating with each other via these networks such that an enormous amount of data is created every second. The tremendous amount of newly created information costs users much time to discover interesting messages from their online social feeds. The problem(More)
Alpha-lipoic acid (ALA), occurring naturally in human food, is known to possess antioxidative and anti-inflammatory activities. Induction of heme oxygenase-1 (HO-1) has been reported to exhibit a therapeutic effect in several inflammatory diseases. The aim of study was to test the hypothesis that the protection of ALA against lipopolysaccharide-(LPS-)(More)
The aim of the current study was to evaluate the histopathological features of inflammation and the expression levels of inflammatory markers in tissue samples from patients with ketamine‑induced cystitis. Bladder biopsy samples for histological analysis were obtained from 23 patients (18 men and 5 women) with a self‑reported history of ketamine use and who(More)
Due to the long propagation delay and the low data transmission rate, many transmissions of control packets will occupy a lot of channel resources, power consumption and transmission time for underwater acoustic sensor networks (UWSNs). In this paper, we propose a receiver-initiated MAC protocol with packet train for UWSNs called multi-receiver MAC (MR-MAC)(More)