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This paper studies the analysis and implementation of intelligent information processing and fault diagnosis technology for distribution automation system. In the fault diagnosis is mainly considering the influence of uncertain information and coupling information, processing technology and multi-source information fusion of multi-source information mining depth based on data driven, and switch level,...
This paper proposes an automatic spatially-aware concept discovery approach using weakly labeled image-text data from shopping websites. We first fine-tune GoogleNet by jointly modeling clothing images and their corresponding descriptions in a visual-semantic embedding space. Then, for each attribute (word), we generate its spatiallyaware representation by combining its semantic word vector representation...
An active disturbance rejection controller (ADRC) is designed and originally implemented on a real torsional plant. The torsional plant resembles the dynamics of a rotational system. Due to mass imbalance, centrifugal imbalance, and the non-coincidence between the principal and geometric axes of a rotating disc, the system parameters of this torsional plant are varying constantly. In addition, an...
Action recognition in videos is a hot research topic in computer vision because of the popularization of application such as human-machine interaction, intelligent monitoring. Recently, with the aging phenomenon of population becoming more and more serious, the analysis of senior actions is becoming more and more important. Random forest has been wildly used in action recognition because of its efficiency...
We design a metric to measure the occupied holding time difference of frequency slots. With the metric, a routing and spectrum allocation algorithm in dynamic scenario is proposed to improve the network spectral utilization. Evaluation results show the proposed algorithm outperforms obviously in blocking probability.
In this paper, we proposed a new semi-supervised method for polarimetric synthetic aperture radar (PolSAR) terrain classification based on improved tri-training. This method only needs a few numbers of labeled samples to achieve the results obtained by traditional supervised classification methods. First, it uses a variety of target decomposition methods to obtain high-dimensional feature. Second,...
In this paper, we present a new unsupervised classification method based on a novel polarization feature, which reflects the proportion of co-polarization component and cross-polarization component of scatters in PolSAR image. We combine this novel polarization feature with backscattering power and scattering power entropy to perform the initial classification. Then apply a merge criterion to merge...
Space net is an effective means of catching non-cooperative target without stability in high orbit, and it has a strong adaptability to the target captured. In this paper, a new net projectile mechanical structure is designed to improve mobility and safety at rail services, which can adjust the angle and the velocity of projectile masses. The unfolding mechanism dynamics model is built based on Lagrange's...
Direct writing technique to build micro/nano structures for flexible electronics and bioengineerings shows unique advantages of simplicity, fast and low cost et al. In order to address its problems of high fluid transport resistance in the pipeline, blockage in nozzle and slow responses speed, the rod-climbing effect is introduced to direct writing using a micro-channel and a rotation shaft within...
Although high oil prices have attributed bad habits in a matter of “doing things right” rather than “doing the right things” in subsea productions, a continuous price drop renewed the need for cost cutting in recent years. This has been the case for subsea companies, where previous research found significant cost and schedule overruns due to late design changes. A large amount of these late design...
Bacteria in water have a great impact in human life. In this work, we designed a system to detect bacteria in water including a micro pore arrays Microelectro Mechanical Systems (MEMS) based bacteria filter and a nanowire forest silver Surface-enhanced Raman scattering (SERS) silicon based sensor. The bacteria filter can preconcentrate and elute the bacteria samples efficiently without culture and...
Recently wireless power transfer technology (WPT attracts considerable attention, its incurred electromagnetic radiatio (EMR), however, is largely overlooked by most existing literatures. In this paper, we first propose and study the radiation constrained fair wireless charging problem, i.e., maximizing the minimum utility of devices by adjusting the power of wireless chargers with no EMR intensity...
In this paper, we present an iterative learning control (ILC) frameworks for robust path-tracking problem of nonholonomic mobile robots in the presence of initial shifts. The major difficulties are owning to the simultaneous existence of state disturbances and biased initial state in the mobile robot kinematic system. To design ILC strategy for such problem, a new ILC scheme is proposed as a combination...
Internet of Vehicles has great effect on improving the efficiency of the transportation system and driving safety. Communication process of Internet of Vehicles can be done adopting various wireless communication modes which include 4G, WLAN and WAVE in the Big data environment. As each wireless communication mode has different traffic scene applicability and different communication effects, this...
Harmonic drive transmission has been widely used in such accurate and reliable positioning and tracking fields as space mechanisms, robotics and high precision machines. However, the performance of harmonic drives is deteriorated by inherent nonlinear attributes including nonlinear stiffness, hysteresis, clearance, nonlinear friction, pure kinematic error and damping. Accurate modeling of the nonlinear...
Cloud computing technology changes the world, and creates new solutions and opportunities to the enterprises, including petroleum engineering companies. In order to solve more complex drilling problems and optimize oil-field services process control system, the impediments to existing drilling system were analyzed. New technologies, such as cloud computing, cloud manufacturing, internet of things...
This paper investigates a consensus problem of the fractional version of second-order system with communication delay under both directed and undirected topologies. By applying the frequency domain method, a sufficient condition is given to ensure the fractional version of second-order consensus facing communication delays. It is proof that fractional version of second-order consensus can be reached...
In modern days, the medical technology has become the focus of the construction of the society, in the spurt growth of biomedical data, many medical work are faced with assorted problems, including the huge amount of data and intensive calculation, etc. In the current stage of development, the large data processing of biomedicine has received highly attention. In addition, it is the major analysis...
The problems in our teaching on object-oriented programming are analyzed, and the basic ideas, causes and methods of the reform are discussed on the curriculum, theoretical teaching and practical classes. Our practice shows that these reforms can improve students' understanding of object-oriented to enhance students' practical ability and innovative ability.
In order to improve the safety factors of MSV (Manned Submersible Vehicle) and shorten the pilot training cycle, the real hardware and software system combine with the modelling and simulation calculation of its sensors, equipment, actuators submersible ontology and motion status in deep sea environment, realizing the semi physical simulation system. First of all, the system model is built and hardware...
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