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Freezing of gait (FoG) is an aberrant gait in Parkinson's disease (PD), which is usually associated with fall risks and reduction of patients' life quality. Efficient intervention for patients to remove FoG has been proposed using context-aware rhythmic auditory cueing during FoG episodes, which relys on accurate detection of FoG. And clinical diagnosis of PD is partly based on the severity of FoG...
For maximum torque control of induction machines (IM) in flux-weakening region, the following problems exist: 1. In Volts/Hz scalar control mode, a slow frequency ramp time cannot provide sufficient electromagnetic torque, whereas the excessive acceleration leads to overcurrent shutdown and system collapse; 2. In vector control mode, the under-estimated leakage inductance in field-weakening region...
This paper proposes an approach for pedestrian tracking using dead reckoning enhanced with a mode detection using a standard smartphone. The mode represents a specific state of carrying device, and it is automatically detected while a person is walking. This paper presents a new approach, which extends and enhances previous methods by identifying in real-time three typical modes of carrying the device...
Support vector machine (SVM) is a supervised method widely used in the statistical classification and regression analysis. SVM training can be solved via the interior point method (IPM) with the advantages of low storage, fast convergence and easy parallelization. However, it is still confronted with the challenges of training speed and memory use. In this paper, we propose a parallel primal-dual...
Support vector machine (SVM) is a supervised method widely used in the statistical classification and regression analysis. SVM training can be solved via the interior point method (IPM) with the advantages of low storage, fast convergence and easy parallelization. However, it is still confronted with the challenges of training speed and memory use. In this paper, we propose a parallel primal-dual...
Standalone inertial navigation system (INS) in indoor pedestrian positioning is becoming imminent as the researchers exploit its small form factor and low power requirement. This will result in small-size, low-power wearable devices that are not obtrusive to the users and yet provide sufficiently accurate pedestrian localization and tracking within. At this stage, most of the recent INS-based indoor...
According to structure characteristics of tilting pad bearing and direct lubricating technology, a new three-pad Leading Edge Groove (LEG) tilting pad bearings was developed. In order to investigate performance of the tilting pad bearing dynamic properties, A test rig was developed to test 8 stiffness and damping coefficients for the tilting pad bearing. The finite difference algorithm is adopted...
High dynamic range image processing have recently become an important topic in consumer electronics market. While multi-scale retinex with color restoration (MSRCR) have been well developed, disadvantages of low performance is not favorable to a mobile computer-vision system. To remedy the above problem, this paper proposes an accelerated MSRCR with effective use of ARM Cortex-A9 architecture and...
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...
Modern networks are increasingly becoming content aware to improve data delivery and security via content-based network processing. Content-aware processing at the front end of distributed network systems, such as application identification for datacenter load-balancers and deep packet inspection for security gateways, is more challenging due to the wire-speed and low-latency requirement. Existing...
The blade system is very popular in high performance computing. In a blade system, the blade is a fundamental element in which are symmetric multi-processors (SMP). About ten blades constitute a blade box, several blade boxes constitute a cabinet and some cabinets constitute a blade system at last. The blades in a blade box are neighbors because they have relatively short distance. Programmers always...
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