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Quantum dots have excellent optical properties such as broad excitation spectra, tunable emission spectra, large Stokes shift, quantum-enhanced luminescence efficiency and so on. In this work, CuInS2 quantum dots were prepared successfully by utilizing the non-thermal injection method. They had diameters in the range of 2∼4 nm. The average diameter of the dots was about 2.4 nm. The dominant wavelength...
A method about optimization of parameters for 3-D reconstruction with uncalibrated monoplane angiograms is presented in this paper. Based on the model of monoplane angiographic system, variables concerning about the precision of reconstruction are discussed. Distance between initial image and projection of reconstructed 3-D model is employed to formulate objective function. Adaptive simulated annealing...
The development of computer technology provides a possible to carry out remote identification for biological quarantine specimens effectively, while at the present stage, most of the identification methods are lack of real-time interaction which makes the identification cost a lot of time. In this paper, we study the key technologies of web-based real-time remote expert identification, mainly in three...
A retrofit solution of mixing warm flue gas extracted from reversing chamber into the coal pulverizing system is provided so as to prevent the problems of the bituminous boiler caused by lignite blending in the bin and feeder coal pulverizing system. The radiant heat transfer with zone method in isotropic scattering media is established to simulate the temperature profile of the HG-670/140-9 boiler...
The complexity inherent in urban emergency response brings lots of challenge for decision making. An effective test bed for analyzing the dynamics of emergency response for different scenarios and evaluating the strength of rescue strategies is crucial for improving disaster planning, preparedness and mitigation. Computer simulation is becoming an increasingly important tool which provides an effective...
Cities are faced with many problems such as urban sprawl, congestion, and segregation. They are constantly changing. The heterogeneous nature of cities, make it difficult to generalize localized problems from that of city-wide problems. Computer modeling is becoming an increasingly important tool when examining how cities operate. Agent-based models allow for testing of different hypotheses and theories...
Cities are complex systems, with many dynamically changing parameters and large numbers of discrete actors. The heterogeneous nature of cities, make it difficult to generalize localized problems from that of city-wide problems. Computer modeling is becoming an increasingly important tool when examining how cities operate. Agent-based models allow for testing of different hypotheses and theories for...
In recent years, with the flourishing development of logistics around China, economy developed very quickly, and many logistics parks were built-up to integrate resource, and then develop modern logistics industry based on scale effect of the parks. But domestic logistics park planning is at the starting stage without a unified approach. On efficient Implementation of logistics parks functions depend...
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