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In this paper, we propose a non-invasive tracking method, which has the potential to be used for localization of the capsule endoscope. The tracking system consists of a magnetic marker, a sensor array, amplifiers, data acquisition devices and a signal processing unit. The marker is modeled as a magnetic dipole to simplify the theoretical expression of the(More)
A wireless body area network system can be implemented to gather the physiological signals of the objective persons. In the network, some sensor nodes are used to monitor and determine the health status of people, and their signals are transmitted via wireless RF network. In order to maintain good performance of the network, an appropriate communication(More)
To build a new wireless robotic capsule endoscope with external guidance for controllable and interactive GI tract examination, a sensing system is needed for tracking 3D location and 2D orientation of the capsule movement. An appropriate sensing approach is to enclose a small permanent magnet in the capsule. The magnet establishes a magnetic field around(More)
It is well established that individuals show an other-race effect (ORE) in face recognition: they recognize own-race faces better than other-race faces. The present study tested the hypothesis that individuals would also scan own- and other-race faces differently. We asked Chinese participants to remember Chinese and Caucasian faces and we tested their(More)
L-ribose is a non-natural and expensive sugar that can be used as an important intermediate for the synthesis of L-nucleoside analogues, which are used as antiviral drugs. In contrast to chemical production, biotechnological methods can produce L-ribose from biomass under environmentally friendly conditions. In this mini-review, various strategies for(More)
Changes in the expression profiles of microRNAs (miRNAs) have been found in many cancers. The study was aimed to investigate the expression of miR-25, miR-223, and miR-375 in the serum of patients with esophageal squamous cell carcinoma (ESCC) and its effect on survival outcome. We examined the expression levels of miR-25, miR-223, and miR-375 in 20 pairs(More)
A magnetic localization and orientation system is proposed for tracking wireless capsule endoscope. This system uses a small magnet enclosed in the capsule to serve as excitation source. When the capsule moves, the magnet establishes a static magnetic field around. With the magnetic sensor array composed of Honeywell 3-axis magnetic sensors, HMC1053, the(More)
Matrix stiffness as a novel regulation factor involves in modulating the pathogenesis of hepatocellular carcinoma (HCC) invasion or metastasis. However, the mechanism by which matrix stiffness modulates HCC angiogenesis remains unknown. Here, using buffalo rat HCC models with different liver matrix stiffness backgrounds and an in vitro cell culture system(More)
This paper introduces a centralized approach to data gathering and communication for wireless sensor networks. Inspired by the social behaviors of ants, we clearly partition the work for the base station and sensor nodes according to their different functions and capabilities. A near-optimal chain is achieved by using an ant colony optimization method ruing(More)