Advanced Materials Research Vols. 457-458

Abstract: Laser menaces Identification is analyzing and processing the data of laser warning. It is the key technique of laser count work. And the results directly influence the final work efficiency. This paper takes the laser alarm equipment as object, bases on the fuzzy characters of each laser parameters in confirming menace source. It utilizes the fuzzy inference making theory, establishes the fuzzy math modals of laser energy, wavelength and repeat frequency and fuzzy inference making rules library of laser menace source. Propose a modified laser menace source identifying arithmetic based on fuzzy inference making. The arithmetic can improve the response speed and identify menace source nicely. And it provides the feasible evidence for the decision maker.

Abstract: The aim of laser guided weapons adopting laser code and decode is to resolve the mutual interference of multiple irradiator in the same war zone. As an effective interfering means, active interference makes the laser guided weapons lose the right object information to protect the important objects in the attack phase by sending much interfering signal. But how to intercept, capture, analyze and identify the laser guided signal code information real-time is the first task in the laser countwork. Based on analyzing the characters of existed laser coding and wave gate, combining the time-correlation character of laser guided signal, this paper proposes the technique of laser guided signal information autocorrelation identification, and it is studied deeply by simulation and experiment. The result shows that the technique resolved the difficult problem of copying the enemy laser signal in short time effectively. The technique wins the time for the laser countwork, and it is feasible and takes on military application value.

Abstract: Adaptive active noise control based on least mean square (LMS) algorithm is a linear adaptive filter so that it cannot obtain desired noise reduction. Quantum algorithm is combined with noise control to form quantum adaptive controller. Quantum adaptive algorithm is discussed completely and noise control system is simulated in order to analyze the effects of noise control.

Abstract: Some inequalities to harmonic equation have been proved. The harmonic equation is a particular form of harmonic type system only when .In this paper, we will prove local result weighted reverse integral inequality for p-harmonic type tensors by using the generalized Holder inequality and the properties of the weight. Using the local result and the properties of averaging domains, we obtain global Weighted reverse integral inequality

Abstract: Compound [Li_1.4Zn_0.8PO₄], a spinel-type metal compound, was prepared by a solid state reaction crystallization method. The results showed that the Li⁺ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 6.2 mmol/g for Li⁺.

Abstract: The local boundedness of very weak solution of Leray-Lions equation is given in this paper by Hodge decomposition methods.

Abstract: The higher integrability for weak solutions to obstacle problems associated with A-harmonic equation for the differential forms has been proved.

Abstract: ASIP can fulfill data processing effectively and flexibly in specific application. Due to the instruction’s diversity and the flexibility of logical structure, it has increased test vectors and enhanced difficulty in the functional verification of ASIP [1].With the continuous spread of ASIP application, the scale of designing is enlarging and the functional verification has become the bottleneck of designing of ASIP. This paper presents a methodology able to accomplish the functional verification of ASIP. The “Bottom-up” methodology is composed of the component-level verification, the instruction-level verification and the FPGA-based prototype system verification. The paper proves the feasibility and efficiency through the experiments in functional verification of ASIP.

Abstract: A novel titanium dioxide （TiO2） nanoparticles coated carbon nanotubes (CNTs) composites were prepared by sol-gel method as microwave absorbing materials in this paper. SEM and XRD researches show that sol-gel method can realize uniform coating of CNTs with TiO2. Among them, with the weight fraction of TiO2/ CNTs composites was 10%, microwave absorption characteristics with a minimum RL value of -34 dB at 6.2 GHz on a coating with a matching thickness of 4mm and <−10 dB was obtained in the frequency range of 4.5-18 GHz with the thickness of 1.5-5.0mm.

Abstract: In high density cities underground spaces are rather common. In this study the sound environment survey method in underground spaces has been explored, aiming at finding out the relationships among the environment, space, people and sounds in such spaces, as well as their similarities and differences with urban open spaces. Based on the concept of Likert scaling, questionnaires and interview methods have been designed. Using the methods, soundscape surveys have been carried out in ten underground shopping streets in Harbin, China, considering both staff and customers. By analysing the results, the reliability and validity of the method are examined.