Advanced Materials Research Vol. 771

Abstract: A novel kind of solution concentration sensor is designed and fabricated based on fiber Bragg grating with the single mode-etched multimode-single mode fiber Bragg grating structure. Sensing characteristics of Bragg grating to solution concentration is investigated without considering the effects of temperature, sensing detection of four kinds of solution is experimentally realized with the wavelength differences between high modes and the fundamental mode, the higher order modes of the etched multimode fiber is more sensitive to the surrounding refractive index than the fundamental mode.

Abstract: This paper calculates the energy and environmental performance of a project with solar hot water system using solar hot water system with vacuum tube materials. The results show that solar hot water application in buildings not only saves energy consumption but also reduces carbon emissions, and the dynamic payback period is about 12 years. Thus solar hot water system should be widely used in buildings in China.

Abstract: The relative research of low range and high anti-overload piezoresistive pressure sensor is carried out in this paper and a new kind of sensor chip structure, the double ends-four beam structure, is proposed. Trough the analysis, the sensor chip structure designed in this paper has high sensitivity and linearity. The chip structure is specially suit for the micro-pressure sensor. The theoretical analysis and finite element analysis is taken in this paper, which provide important scientific basis for the pressure sensor development.

Abstract: The system uses a high stability of the VXI bus as the control core, and a variety of advanced electronic materials with fault diagnosis method in the application of mature TPS test vector generation method, the set of fault dictionary and intelligent exploration pen in one, for under the conditons of modern information technology equipment rapid and ifficient protection of the ability to provide a resrarch avenues to explore. The TPS-based circuit board electronic materials with fault diagnosis system has been successfully used in the diagnosisi of barious types of radar circuit.

Abstract: Managers play a decisive role in the allocation and utilization of industry manufacturing materials in industrial enterprises. Research has demonstrated that the profit and loss from fair value changes has significant impact on managers compensation. This article studies the profit and loss from fair value changes and sensitivity of Chinese managers compensation in industrial enterprises and finds out that the current managers compensation design cannot reflect the revenue information and profit and loss changes in fair value measurement effectively, and there is non-equivalence in impact of profit and loss. Therefore, new compensation stimulation mechanism based on performance contribution and weight ratio should be came up with as early as possible, to guide and maintain the positive relationship between profit and loss from fair value changes and managers compensation, and adjust the stickiness between them to avoid the negative impact on the utilization of industry manufacturing materials caused by distorted managers compensation system.

Abstract: This paper presents principles of a down-converted mixer for four sub-harmonic and proposes a particle swarm optimization algorithm as a global search algorithm, and the performance equation is used as the assessment of the mixer circuit optimization method. Dielectric substrate adopts Electronic Materials with RF/Duroid 5880 whose dielectric constant is 2.20 and 5mil in thickness. The optimization algorithm can quickly get optimal results. The simulation results show that this mixer achieves higher 1 dB compression point, loss of frequency conversion which is less than 15 dB and good linearity.

Abstract: This paper introduces the basic structure of narrow-band FIR filter and conducts detailed analysis on the various components of narrow-band FIR filter. Based on the CIC and HBF, this paper further designs narrow-band FIR filter with the sampling rate of 100 KHz. The materials of filter adopt the piezoelectric ceramic vibrator with high mechanical quality factorand high stability .Moreover, the simulation results indicate that this filter can greatly reduce the calculation amount and storage capacity so as to satisfy the real-time processing requirements of the signals.

Abstract: For different Manufacturing Materials, various embedded software is often needed to use to configure and implement different functions during the processing of production. In order to improve the reusability of embedded software, this paper combines the software product line technology to present a software product line reference architecture OVM_AO model, gives a detail modeling of the modify code part, meanwhile, gives the rule of transform the model to AOP model, improves the efficiency of the software automate equipped with material.

Abstract: A novel magnetic suspension platform is studied in this paper. Three sets of suspension apparatus is adopted to produce suspension force, each of which consists of the permanent magnet, the U shape yoke and suspension coils. Material of yoke is laminated transformer silicon steel (30ZH100).Material of Permanent magnet is Nd2Fe14B. The mathematical model of suspension was established by analyzing the force exerting on rotor. In view of the levitation system with multi-variable, nonlinear, strong coupling characteristics, ADRC is applied to realize decoupling and disturbance rejection. The rule of ADRC parameter setting was obtained through lots of simulations. The simulation and experimental results indicate this suspension altitude control system has better dynamic characteristics and robust.

Abstract: Water pollution hazard created by benzene series fire accident is very strong and it involves many fateful consequences. Along with the continuous improvement of society, people all over the world attach great importance to environmental protection and the sustainable development of economy increasingly. Along with the advance of fire protection cause of our country, the consciousness and concepts of "green fire" enjoy popular support. Therefore, study on the environmental materials and the establishment of emergency rescue procedures for water pollution accident created by benzene series fire is imperative.