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Database driven IP geolocation is a convenient and common way to determine geographic location of an IP address. However, the underlying problem is that it is often difficult for users to determine which provider is reliable enough to meet their own scenarios. In this paper, we tackle this challenge in a data fusion perspective. We first evaluate the consistency degree of data entries among 5 free...
With the development of Smart Grid Technology, more and more electric power sensor data are utilized in various electric power systems. To guarantee the effectiveness of such systems, it is necessary to ensure the quality of electric power sensor data, especially when the scale of electric power sensor data is large. In the field of large-scale electric power sensor data cleaning, the computational...
The imiquimod-MEO2MA hydrogel film was fabricated as a drug release pad for the keloid therapy in this research. The physiochemical properties of the synthesised MEO2MA hydrogel, including swelling/deswelling behaviour and temperature response, were characterised to understand the loaded amount and released speed of the imiquimod. Similarly, the cytotoxicity of developed hydrogel pad was measured...
We propose an SDN-enabled orchestration for the convergence of radio and optical networks in the 5G. Improved coordinated multi-point service is experimentally demonstrated in the cloud radio over flexible optical fronthaul transport networks (C-RoFlex) testbed.
We demonstrate the distributed time synchronization system for the first time based on commercial modules. Experimental results show its convergence and high accuracy without network time error accumulation to meet the 5G requirements.
Power output of wind generators is always associated with some uncertainties due to wind speed and other weather parameters alteration, and precise short-term forecasts are essential for their efficient operation. This can efficiently support transmission and distribution system operators and schedulers to improve the power network control and management. In this paper, we propose a double stage hierarchical...
Wind generation power output estimation is always associated with some uncertainties as a result of wind speed and other weather parameters intermittency, and accurate short-term predictions are important for their efficient operation. This can greatly help transmission and distribution system operators and schedulers to improve the power network control and management. In this paper, a double stage...
This paper presents an optimal energy management strategy for the operation of multiple energy storage units (batteries) in grid-connected industrial microgrids with high-penetration renewables in a variable grid-price scenario. The approach is based on a regrouping particle swarm optimization (RegPSO) formulated over a day-ahead scheduling horizon with one hour time interval, considering forecasted...
Assessment of the output power of wind generators is always associated with some uncertainties due to wind speed and other weather parameters alteration, and precise short-term forecasts are essential for their efficient operation. This can efficiently support transmission and distribution system operators and schedulers to improve the power network control and management. In this paper, we propose...
The measuring of wheel set geometrical profile is important for the train vehicle running safety. Using light shot digital image processing method to detect wheel profile parameters is becoming the mainstream technology. The precision of measurement, however, is influenced by the sand sprinklers on bogies. The laser lights would be overshadowed by sand sprinklers, which will influence the classification...
A new mathematics model on multi-facilities location and allocation problem(MLAP) of three-echelon supply chain was built, which mainly took some logistics cost such as inventory cost, carrying cost, transportation cost into consideration. Then, an improved Genetic Algorithm was proposed to solve the MLAP. In this algorithm, the real encoding method was used to encode the solution directly, and meanwhile...
In this paper we investigate the methods for image keypoint detection, description, and matching. We compare four methods, including SIFT, SURF, ORB, and BRISK. The datasets used for evaluation cover different changes and transformations in imaging conditions, such as zoom, rotation, blur, viewpoint, light, and JPEG compression. We also compare the computational speed of these four methods.
After passing through many hierarchical management levels, the information tends to distort, which may lead to decreased efficiency, and poor ability to adapt to external changes. We provide a new kind of flat management modes based on mobile Internet. With the mobile social App, the human relations are flattened, which means the information can breakthrough level barriers and be immediately exchanged;...
Single phase uninterruptible power supply (UPS) has been widely used for a variety of critical load to overcome the disruption in utility power supplies. Wide band gap (WBG) power semiconductor devices, such as Silicon Carbide (SiC) finds its application in UPS systems due to its higher switching frequency, lower losses, and higher power density compared to Si devices. In this paper, a full SiC-based...
InterCloud Computing is a new cloud paradigm designed to guarantee service quality or performance and availability of on-demand resources. InterCloud enables cloud interoperability by promoting the interworking of cloud systems from different cloud providers using standard interfacing. Resource management in InterCloud, considered as an important functional requirement, has not attracted commensurate...
A heterogeneous macro-small cellular network architecture where some small cells are deployed within the coverage of a macrocell is widely considered a promising and practical solution for future 5G wireless communication network. More and more small-cell base stations (SBSs) are deployed in the LTE-A macrocell system to achieve a higher data rate and a better spectrum efficiency. As there could be...
The arc quenching device with multi-short-gaps introduced in this paper allows the arc to be established by a lightning strike, and then the device extend arc with the high temperature and high pressure produced by arc until arc extinguishes. The duration of the process is very short and act trip caused by relay protection devices would not happen. To test the lightning protection performance of the...
In this study, we proposed a user relationship strength hierarchy vote (URSHV) model to measure the relationship strength, which can reflect the degree of intimacy between two different persons. This model is a hierarchical model measuring the relationship by voting on users' daily moving trajectory similarity, physical position similarity,, the corresponding semantic location similarity, capable...
To solve the distribution network minimum loss reconfiguration problem, we propose an improved dynamic multi-swarm particle swarm optimization (DMS-PSO) in this study. In this method, a set-based updating strategy is introduced to solve the combination problem and a neighborhood's learning strategy is combined to improve the algorithm's local search ability. In addition, to address topological infeasible...
This paper investigates the robust stabilization problem of general switched nonlinear systems subject to actuator saturation under arbitrary switching paths. Firstly, the robust stabilization of nonlinear switched Hamiltonian systems with actuator saturation is studied, the saturation function is expressed by a control input and compensation, then several sufficient conditions are derived and an...
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