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Gesture-based lock plays an important role in many Android applications to prevent unauthorized access. Unfortunately, application developers tend to abuse some features provided by Android platform and neglect their influence on the security. This may result in fatal vulnerabilities which can be exploited to bypass gesture-based lock. In this paper, we focus on the vulnerabilities of gesture-based...
Based on the standard FastSLAM, a new decomposing strategy is proposed in this paper. Although the method involves a little extra computation, it considers fully the relationship between the pose of robot and the individual map feature, and it is better to improve the precision and reliability of SLAM. In addition, a nonlinear adaptive square-root unscented Kalman filter (NASRUKF) is utilized to replace...
This research is focused on the estimation and calibration of state-of-charge (SOC) and state-of-health (SOH) for lithium-ion batteries, on basis of coulomb counting process. The proposed method is aimed to provide an accurate and easy-to-use solution for online indication of battery statuses without the need of sophisticated calculations or intricate information. With real-time coulomb counting,...
This paper addresses the detection of the fundamental frequency of power systems under unbalanced and distorted conditions. By using the second order information, both the autocorrelation and pseudo-autocorrelation, within the Clarke's transformed voltage, a novel balancing voltage transformation (BVT) is proposed to accurately detect the underlying phase angle evolution of the positive sequence component...
Embedded waveguides are a potential alternative to copper for providing high bandwidth in future applications. Besides technical viability, significant effort is required to standardize testing methods and procedures to fabricate and qualify functional parameters of optical waveguides and board specifications. We show examples of the first deployments of standardised PCB fabrication and measurement...
English translation of Chinese pediatrie points is a long neglected field in all kinds of TCM nomenclatures and dictionaries. However, the authors believe it is necessary to include it in the future international standardized TCM nomenclatures or dictionaries in three aspects and the principles and protocol of its English translation are thus proposed.
Secondary optics design in the past research only considered illuminance uniformity and ignored luminance uniformity and glare issue, which may result in serious security problem for vehicle drivers. A novel un-symmetric freeform LED lens designed for roadway lighting is proposed. Optical performance of un-symmetric lens will be compared with symmetric lens by optical software. The simulation results...
This paper presents a novel one-class classification method to improve the correct proportion by adding new outliers. General speaking, it is difficult to improve the correct proportion of the one-class classification because of few data. How to distinguish the target objects correctly from unknown samples becomes one of the most important problems. The support vector data description (SVDD) is a...
An important characteristic of electrical vehicle is that there is high voltage of power cycle. The passive safety is very important in electrical vehicle's crash, compared with normal vehicle. First, the crash standard of electrical vehicle is analyzed. Then the crash test's process is researched. With the dummy's injury data of head and thorax and vehicle's acceleration, which come from different...
The study on the definition and dimensions of self oriented innovation capacity of enterprises is the base and key to evaluating self-oriented innovation capacity of enterprises scientifically and appropriately. Based on the definition of self oriented innovation capacity of enterprises, the four dimensions of self-oriented innovation capacity of enterprises are proposed: driving force of self-oriented...
Based on the research of the related concepts of specification, taxonomy and instance about XBRL, this paper presents the core thinking of exporting fiscal backup records by XBRL technology. It also introduces the process that is data exporting to TXT, TXT mapping from tables to XML and XML files parsing generating the standard XBRL files. The whole process is fiscal backup records exporting. This...
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