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In this paper, we discuss using a game-theoretic approach for Network Slicing (in particular RAN Slicing) that enables fully dynamic allocation of spectrum. The algorithm allows radio resources from across the whole spectrum to be allocated to users from different slices, so avoiding the inefficiencies of fixed slices. By using game theory, we can apply constraints on the resources allocated to individual...
This paper proposes an innovative method for reducing the visually induced motion sickness (MS) occurred in a 3D immersive virtual environment (VE) by utilizing a flexible dynamic scene smoothing approach based on saliency analysis. A saliency model based on fully convolutional network (FCN) is first trained to establish the saliency map, then the probability maps representing the salient information...
Single point active alignment method (SPAAM) has become the basic calibration method for optical-see-through head-mounted displays since its appearance. However, SPAAM is based on a simple static pinhole camera model that assumes a static relationship between the user's eye and the HMD. Such theoretic defects lead to a limitation in calibration accuracy. We model the eye as a dynamic pinhole camera...
Vernier permanent magnet synchronous machine (VPMSM) is a promising candidate for low speed direct-drive applications. At the design stage of VPMSMs, one of the key issues is the selection of the slot/pole number combination. This paper will show that a proper selection of the slot/pole number combination can be achieved based on an index parameter of VPMSMs: the gear ratio. Firstly, the magnetic...
As a promising candidate in direct drive application, Vernier permanent magnet synchronous machines (VPMSMs) feature high torque density due to magnetic gearing effect. This paper reveals the nature of magnetic gearing effect in VPMSMs in depth. Firstly, the general torque production mechanism of Vernier permanent magnet synchronous machines (VPMSMs) with surface mounted PMs are investigated based...
This paper investigates the receding horizon state estimation for the linear discrete-time system with multi-channel observation delays. The receding horizon estimation is designed by the reorganized observation technique and the linear unbiased estimation method. A batch form and an recursive form for receding horizon estimation are developed based on the reorganized measurements. The estimation...
In this paper, the torque production mechanisms of integral slot distributed, fractional slot concentrated winding (FSCW) and Vernier permanent magnet synchronous machines (PMSMs) are firstly investigated together from the perspective of magnetic gearing effect. The torque contribution and magnetic gearing effect in eight 12-slot PMSMs with different rotor pole numbers are analysed and compared. The...
In this paper, an 18-slot/26-pole fractional slot permanent magnet surface-mounted machine (FSPMSM) with coil-pitch of 2 slot-pitches is firstly proposed. The torque production of this machine is based on both the principle of fractional slot machine and magnetic gearing effect. Its performance is analysed and compared with that of an 18-slot/10-pole FSPMSM. The results show that the 18-slot/26-pole...
This paper deals with the blood rheology of curved vessel in the case of blood pulsation. To obtain the blood rheology, a three-phase incompressible homogeneous Newtonian viscous fluid consisting of plasma, red blood cells and white blood cells is considered as a blood. Computational fluid dynamics (CFD) model of the three-phase blood is established. To observe the variations of the blood velocity...
A new type of computational three-dimensional (3D) reconstruction in the condition of low light level has been proposed using a planar catadioptric method based on the principle of computational photon counting integral imaging technique. Only one camera and one shot are employed for photon counting integral imaging, rather than multiple sensors or dynamic movement in previous works. A 3D planar catadioptric...
Due to the rapid development of communication systems, a highly flexible scheme of multi-rate multi-length channel code is urgently required. In this paper, we propose a design method of highly flexible rate-compatible (RC) length-scalable (LS) low density parity check (LDPC) codes, which is based on the progressive extension idea of both information bit/node and parity check bit/node. According to...
In this paper, we use a Spectrum Sharing/allocation algorithm to implement a Cognitive Radio network without spectral awareness. This allows radio resources to be allocated to primary users and to secondary users in such a way that primary system and secondary system are aware of each other. By doing this, sensing of spectrum holes is avoided but the primary users will be protected and will always...
To provide better usage of spectrum, regulators, such as the FCC and Ofcom, have been considering how to share spectrum between operators and also between different types of network. Two important aspects of any mobile service that need to be considered are how to ensure the appropriate level of service to individual users and how to minimize power consumption. This paper addresses the issue by applying...
View management techniques are commonly used for labelling of objects in augmented reality environments. Combining with image analysis, search space and adaptive representations, they can be utilized to achieve desired labelling tasks. However, the evaluation of different search space methods on labelling are still an open problem. In this paper, we propose an image analysis based view management...
The most commonly used single point active alignment method (SPAAM) is based on a static pinhole camera model, in which it is assumed that both the eye and the HMD are fixed. This leads to a limitation for calibration precision. In this work, we propose a dynamic pinhole camera model according to the fact that the human eye would experience an obvious displacement over the whole calibration process...
There are few negative effects to make people discomfort using virtual reality systems. In this paper, we investigated the effects of visual fatigue when wearing head-mounted displays (HMD) and compared the results with those from the smartphones. Forty subjects were recruited and divided into two different groups. The visual fatigue scale was measured to assess the subjects' performance. The results...
Objective Generalized anxiety disorder (GAD) is the most common anxiety disorder in primary care. The clinical studies on anxiety disorders have been commonly conducted, however the efficacy of acupuncture in treating GAD is uncertain. We therefore performed a systematic review to evaluate the evidence regarding acupuncture for GAD. Data Sources CBM, CAJ, CSJD, CNKI, WanFang, EMBASE, Pubmed/MEDLINE,...
Objective: To excavate the main acupoints selection for cervical radiculopathy by using statistical methods and data mining methods. Methods: CNKI, CBM, Wanfang, VIP were searched for literature published from 1978-2016. Descriptive analysis, association rules analysis was made by SPSS 17.0 software. Results: The top 5 meridian with the highest frequency of application were Du meridian, Large intestine...
Recently sparse representation has been applied to visual tracking by modeling the target appearance using a sparse approximation over the template set. However, this approach is limited by the high computational cost of the ℓ1-norm minimization involved, which also impacts on the amount of particle samples that we can have. This paper introduces a basic constraint on the self-representation of the...
In order to improve the accuracy of recognition insulators and effectively reduce the influence caused by the texture and illumination of the background, a novel insulator recognition method merged the shape, color and texture of insulator is presented. Firstly, the parallel line features were perceived from different directions in the inspection images as candidates of insulator regions, and then...
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