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The blast furnace gas is an important secondary energy for the iron and steel production. Establishing an effective model to describe the state of BFG system is of great significant to maintain the system balance and stability. Considering the strong coupling characteristics of the blast furnace gas system and the high level noises in the industrial data, a simplex unscented Kalman filter-based Wang-Mendel...
As one of the candidates of the next generation non-volatile memory(NVM), phase change memory(PCM) has been paid more attention. However, there are still many open issues such as numerical simulation to study. Phase transition is a temperature based process, which can be simulated by temperature profile generated by the device simulator coupled with the phase transition model. In this work, a phase...
In this paper, a delayed stage-structured predator- prey model with the immature prey are taken care of by their parents and biological control strategies (that is releasing natural enemies at different fixed time) is considered. By using comparison theorem, the existence of the globally asymptotically stable prey-eradication periodic solution when the number of releasing natural enemies more than...
The Technical Barriers to Trade (TBT) is an important problem faced to the export of China. Based on the number differences of TBT notifications between countries, we propose the concept and computational method of the technical barrier coefficient. By means of price-production and price-demand functions, a trade model with a developed country and an under-developing country is designed. The available...
With the development of renewable energy, distributed generations such as photovoltaic generation, wind power systems need to be connected to a utility power grid for the systems to work effectively as energy sources. Islanding detection is one of the most important techniques to develop for the distributed generation systems. A novel active islanding detection algorithm based in pseudo-random signal...
Skyline computation has many applications including multi-criteria decision making. In this paper, we study the problem of efficient processing of continuous skyline queries over sliding windows on uncertain data elements regarding given probability thresholds. We first characterize what kind of elements we need to keep in our query computation. Then we show the size of dynamically maintained candidate...
The invariants of circular surface with fixed radius are investigated by means of differential geometry. Two moving frames are established, which are respectively on the central curve and the circle generatrix of circular surface. Based on the unit normal vector of the circular plane and the arc length of its spherical image curve, the former frame and the central curve are combined and the vector...
The paper presents a comprehensive study of Spice modeling for some key physical effects observed in a 65 nm CMOS process. STI-induced stress effect, well proximity effect, as well as HCI and NBTI reliability effects, which can not be neglected for technologies beyond 90 nm and must be properly modeled for accurate circuit simulations, are discussed in this study.
The extensive clayization of Dexing copper mine is responsible for water and soil pollutions because of the oxidation of sulfide minerals. During the clayization, harmful elements such as As, S, Sb and Pb could be effectively released into the clay and water. Using the abundant spectral information of short wave infrared (SWIR), combining with the spectral absorbed index, SAM (Spectrum Angle Mapper)...
In this paper a multivariable generalized predictive adaptive control(MGPC) scheme is presented under the multi step cost-function with the polynomial matrix weighting. A simplified MGPC adaptive algorithm and a comparison between the simplified algorithm and original one in the amount of calculation are also given.
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