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With the development of the cyber-physical systems (CPS), the security analysis of the data therein becomes more and more important. Recently, due to the advantage of joint encryption and compression for data transmission in CPS, the emerging compressed sensing (CS)-based cryptosystem has attracted much attention, where security is of extreme importance. The existing methods only analyze the security...
Lithium-ion based battery energy storage systems have become promising energy storage system (ESS) due to a high efficiency and long life time. This paper studies the DC link capacitor selection for a 250kW ESS. The battery bank in an ESS needs a low ripple environment to extend the lifetime. For filtering the switching ripple on the DC bus, large electrolytic capacitors are needed to absorb the current...
For better understanding user information needs, Google proposed the Knowledge Graph as supplements to the results returned by its search engine. Many search engines have also developed their own knowledge graph services. However, although there are many freely accessible structured datasets, such as Freebase, developers have to build the knowledge graph from scratch without any support from open...
Graphene is a two-dimensional (2D) carbon-based material, whose unique electronic and optical properties have attracted a great deal of research interest [1]. Despite the fact that graphene is an atomically thin layer the optical absorption of a single layer can be as high as 2.3% (defined by the fine structure constant). Nevertheless, for light-matter interactions this number is imposing challenges...
Wireless sensor networks are distinguished from traditional networks. Existing routing algorithms are not effective in supporting such networks. In this paper, a novel quantum-inspired ant-based routing (QABR) algorithm for WSNs is proposed, and it has rapid convergence and good global search ability. Experiment results show that the proposed algorithm can find rapidly the optimal path from source...
In order to solve the transformation problem of BOM from engineering BOM to maintenance BOM for MRO system (MRO, Maintenance, Repair and Overhaul), a formal transformation model of BOM view is established. In this model, the intermediate component, inherit component, virtual component are defined on the specific maintenance management domain, and the transformation process from engineering BOM to...
In this paper, differential VLBI (Δ VLBI) model used for Chang'e-1 (CE-1) Transfer Orbit positioning is derived Based on the model, error equation of observations is formed and coefficient matrix A is designed Finally the influence of predicted accuracy of ERPs on CE-1 positioning accuracy is analyzed and some results are given
In this paper, a relativistic differential VLBI (Δ VLBI) mathematical model for Chang'e-1(CE-1) Transfer orbit is derived Based on the model, Δ VLBI time delay observations are formed by differencing CE-1 time delay observations with a simulated radio source time delay observations. Then the error equation of observations is formed and the unknown parameters including orbit of CE-1 and Earth Orientation...
In order to resolve the formation tracking problem of cooperative control of multiple Autonomous Underwater Vehicles (AUVs), a variable structure control law was proposed to keep the AUVs track along the predefined trajectory by minimizing the cross track error, which is calculated from the line-of-sight angle. Furthermore, a mathematical model for the formation based on leader-follower was established...
Summary form only given. A novel AC-DC optimal reactive power flow (ORPF) model with the generator capability limits is proposed. The objective is to minimize the total cost of generator reactive and active power outputs paid by an independent transmission company. In the model, the generator operation area is divided into four parts with each one having a different reactive output cost function....
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