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On-load tap changer (OLTC) is the important component of on-load tap changing transformers. It can maintain the stability of voltage by adjusting the tap position without interrupting the load current. Due to the carbonization and oil pollution of conventional OLTC with oil switching, vacuum OLTC with permanent magnetic actuator has been developed. To guarantee the speed and reliability of the OLTC,...
In this paper, an adaptive fault tolerant control (FTC) method based on disturbance observer is proposed for microsatellite attitude control system (ACS) with actuator faults and multiple disturbances simultaneously. Disturbance observer and fault diagnosis observer are designed to estimate the modeled disturbances and faults of flywheels, respectively. An adaptive term is applied to compensate norm-bounded...
The business control system of SCF is based on the technology of “credit binding” between the core enterprise and small and medium enterprises (SMEs) in the supply chain. The new control system allows the business to cover all enterprises in the supply chain. In this paper, We refer to the concept of “business flow” in supply chain which regarded as a complex network, and consider the “overall crediting”...
Along with the rapid development of information technology, an increasing number of data need to be collected from the building electrical system. Therefore, it is critical to design a data acquisition system can be directly integrated with the existing building control system. In this paper, we concentrate on the research of fault diagnosis data collection. We design a MODBUS based data acquisition...
Supply Chain Finance (SCF) as a new banking business in recent years has been a rapid development. The core of business risk control is the "credit binding" between the core enterprise and small and medium enterprises (SMEs) in the supply chain. The new risk control technology allows the business to cover all enterprises in the supply chain. In this paper, the supply chain is regarded as...
Hardware for security mechanisms such as authentication, cryptographic protocols, digital rights management and hardware metering depend heavily on the security of embedded secret keys. In the Power Distribution System (PDS) of an IC and describe how these measurements can be applied to a Physical Unclonable Function (PDF). We introduce active temperature control to the PDF analysis. Adding temperature...
An energy efficient spectrum allocation algorithm in bandwidth-variable optical switching networks is proposed, in which the modulation format of subcarriers is selected in a dynamic way according to the real-time traffic loading.
We investigate launched power allocation of multi-rate transmission with mixed 16-QAM and QPSK OFDM signals, with fixed and flexible power allocation scheme discussed. Simulation results show that flexible allocation scheme achieves much better transmission performance.
Based the assessment indicator system of supportiveness of coal industrial circular economy and data from questionnaire, with the method of AHP and Fuzzy Comprehensive Evaluation, assessment and analysis on the supportiveness of coal industrial circular economy of X Province are proposed. And then strategies and suggestions to the development of circular economy for X Province were introduced.
It is of great importance to predict future property of shelf aging ethylene propylene rubber (EPR) as sealing materials since it is often delayed to be applied in engineering practice. Tensile strength data collected from each re-inspection in the past few years is dispersive so that current methods to predict future property of EPR are not accurate. A new method utilizing reliability evaluation...
In order to meet the requirement of manufacturing large-scale ball-crown like parts, a new type Slider-crank Mechanism Based 2-dof Heavy-load Positioner is introduced in this paper. The mathematical model of the positioner is established. The kinematics problems are solved. The statics problem is solved and the analytic expression of the driving force is obtained. An optimal dimensional synthesis...
Tabu search artificial immune algorithm (TS-aiNet) is proposed based on aiNet inspired by mechanism of tabu search algorithm. It introduced a tabu list that taboos cells whose affinities didnpsilat increase no longer in the network. In some phrase the tabooed excellent cells were released according to aspiration criteria. It added a memory table applied to save mature memory cells. Moreover it improved...
Technology of frequent pattern tree is presented in the paper. This paper analyzes the defect and limitation of algorithm based on classic frequent pattern of association rules. Then based on KDD* model this article implement an association rules algorithms based on IFP-tree. The middle results and finally frequent patterns of the algorithm are stored on database. The algorithm in build IFP-tree and...
The paper presents a novel hybrid immune algorithm (HAIA) and applies it to the feature selection of SELDI-TOF MS ovarian cancer data to select the best subset of features for medical decision. Based on an immune metaphor, the algorithm is integrated with clonal selection, bone marrow model, ant colony optimization, and K nearest neighbor classifier. Clonal selection presents a local search and suppression...
The nature of the imaging environment, illumination plays an important role in the efficiency of face recognition on visible images. Infrared image is independent of the ambient illumination, but it is sensitive to temperatures. Face recognition algorithms applied to the fusion of IR and visible images consistently demonstrated better performance than when applied to either visible or IR imagery alone...
A 5-Degree of Freedom (DOF) 5-UPS/PRPU fully parallel machine tool (PMT) was introduced. Based on the original edition of CNC system, the concise motion control algorithm was deduced by analyzing the identical feature between two Euler angles of 5-UPS/PRPU PMT and two swing angles of conventional 5-axis cutter swing machine tool. Then by using the formula of the inverse kinematic solution of the PMT,...
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