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This paper investigate the performance of a proposed optical orthogonal frequency-division multiplexing (OFDM) in a short-range intensity-modulated, direct-detected (IM/DD) optical channel. Because of the high peak-to-average power ratio (PAPR) problem of the OFDM modulation scheme, the beneficial clipping method has been proposed to improve the performance of communication system. In the optical...
This paper proposes a smart grid policy simulation platform, which takes all information affecting the interests of the stakeholders into consideration, to set policy and conduct empirical analysis. The platform can help policy making departments to understand the policy implementation effect (e.g., environmental benefits) more intuitively by using visual analysis and reporting tools, so as to find...
This paper presents Multiple Radio Access Technologies(M-RATs) cooperative model for Device- to-Device (D2D) communications, which depends on both the licensed and unlicensed spectrum. The notion of cooperation factor is introduced to capture and analyze the threshold constraint in cooperation scenes. This paper also derives the coverage probability and link spectrum efficiency in typical RAT, which...
As the rapid growth of the data traffic, the mobile cellular network is under unprecedented operation pressure. Various of small cells with relay technologies have been proposed to bypass increased data with the status of the limited base station so far. Therefore, vehicular small cell gradually are attracting the attention of the researchers. In this paper, we discuss the communication model of the...
Synthetic Aperture Radar (SAR) images are widely used in land use classification. However, the influences of buildings may cause classification errors when SAR images are applied in urban areas. Aiming at the property of low Signal to Noise Ratio (SNR) of SAR images and the complexity of building textures, we obtained the initial segmentation using the Maximum likelihood (ML) algorithm based on the...
In cyber analysis, it is highly desirable to support the analysis of junior analysts by leveraging the experiences of experts. But, there are two major challenges to achieve this goal. First, it is very costly to capture the experience of experts for the complex task of cyber analysis using traditional approaches such as protocol analysis. Second, it is difficult to identify previous experiences of...
As an analytical method with lumped parameters, the magnetic equivalent circuit method is usually constrained by its incapability of flux leakage and magnetic saturation compared with finite element (FE) method. We propose a new approach introducing compensation matrix $C_{m\times n}$ to combine both methods. It requires a certain number of feature points by FE to compensate flux leakage at different...
Cyber analysis is a difficult task for analysts due to huge amounts of noise-abundant monitoring data and increasing complexity of the reasoning tasks. Therefore, experience from experts can provide guidance for analysts' analytical reasoning and contribute to training. Despite its great potential benefits, experience has not been effectively leveraged in the existing reasoning support systems due...
Aiming at the production Line of gearbox, this paper appLies a Line balancing method and the object oriented modeLing technology. Firstly, the simulation model of the box streamLine is set up and, the bottleneck is found out and analyzed with the model. Secondly, the rebuilt strategy based on the principles of ECRS(ELiminate, Combine, Rearrange, Simple) and the theory of production Line balancing...
Operational risk is the risk of loss resulting from inadequate or failed internal processes, people and systems or from external events. It is difficult to model and measure operational risk of bank. The Bayesian network has a great deal of advantage in Modeling and measuring Operational Risk, which is induced by uncertain elements in a complicated system. After review operational risk of bank and...
Study and analysis the fuel leakage security of current LNG alternative fuel bus. Do the simulation on surrounding concentration and temperature of LNG bus fuel tank leakage by Computational Fluid Dynamics (CFD). By analyzing the influence of three different bus velocities, 0km/h, 30km/h and 80km/h, we have the conclusion from the simulation that when the bus gets faster, the influence of surrounding...
In view of the status quo that the whole construction industries are lack of competitiveness in china, combined with the characteristics of construction industry, this paper systematically analyzed the key factors that influence the competitiveness of construction industry by deductive methods and relying on Professor Porter's Diamond Model. Based on this, we analyzed the current problems that existed...
In many social networks, the connections between actors are formed because they participate in the same event, such as a set of scholars coauthoring a paper and a person making phone calls or having teleconferences with his friends. Therefore, we propose an event-driven framework for creating network growth models. We also notice that in evolving networks, both the behavior of the whole network and...
This paper focuses on adapting the Granular Theories to system modelling for design and development of a service-oriented system. It highlights how to integrate Granular Computing Structures, development philosophy, methodology and UML for modelling, organising and addressing systems through a case study of Emergency Assistance Service System (EAS). The proposed approach to building software development...
In this paper, a discrete epidemic model with nonlinear incidence rate obtained by the forward Euler method is investigated. The conditions of existence for Neimark-Sacker bifurcation are derived by using bifurcation theory. In order to eliminate the Neimark-Sacker bifurcation of the discrete epidemic model, a tracking controller is designed such that the disease disappears gradually. Finally, numerical...
Nuss Orthopedic of Pectus Excavatum(PE) is a novel minimal invasive surgical technique for the treatment of PE, however, the surgery will fail as the Nuss bar is slipped or rotated. In this paper, the preoperative and postoperative helical CT scans were carried out for one child patient of PE, and the preoperative and postoperative 3D model for thorax is built according to the CT. To preoperative...
The aim of this study is based on GM(0,N) model to evaluate the biochemical factors in preterm neonates, include growth hormone (GH), insulin-like growth factors (IGFs), IGF-binding proteins (IGFBPs) and leptin, the proteins known to be involved in the regulation of growth. And find the influence for each factor corresponding with the body mass index(BMI) and postnatal growth(PI). First, we use the...
Existing approaches to characterizing intrusion detection systems focus on performance under test conditions. While it is well-understood that operational conditions may differ from test conditions, little attention has been paid to the question of assessing the effect on IDS results of parameter estimation errors resulting from these differences. In this paper we consider this question in the context...
Tobacco distribution has the main features of fast-moving, high value, uniform dimension which requires high picking efficiency, accuracy and low labor intensity. In this case, traditional manual picking needs to be replaced by proper automated picking significantly. Complex Automated Picking System (CAPS) is a kind of automated order picking system, composed of the Horizontal Dispenser (HD) and A-frame...
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