Measuring Available Bandwidth for Smart Cyber-Physical Applications

The powerful processors and the variety of sensors in new and upcoming mobile Internet devices,such as iPhones and Android-based smart phones,can be leveraged to build cyber-physical applications that collect sensor data from the real world and communicate it back to the Internet for comprehensive processing.Available bandwidth measurement has been discussed previously in the computer networking community.Currently,it is important for cyber-physical applications to behave smartly since these applications pr...     

Quality evaluation for air plasma spray thermal barrier coatings with pulsed thermography

Pulsed thermography(PT) as a non-contact non-destructive evaluation(NDE) technique was employed to examine as-sprayed air plasma spray(APS) thermal barrier coatings(TBCs) for quality evaluation.Thickness and micro-structural characteristics play a vital role in determining the quality.In this paper,PT logarithmic peak second-derivative method was adopted to measure the thickness of top coat.Time dependent thermal images were used to characterize the microstructure which was confirmed by scanning electron...     

Numerical simulations of self-propelled swimming of 3D bionic fish school

Numerical simulations of self-propelled swimming of a three dimensional bionic fish and fish school in a viscous fluid are carried out.This is done with the assistance of a parallel software package produced for 3D moving boundary problems.This computational fluid dynamics package combines the adaptive multi-grid finite volume method,the immersed boundary method and VOF (volume of fluid) method.By using the package results of the self-propelled swimming of a 3D bionic fish and fish school in a viscous fluid...     

Distributed Estimation in Sensor Networks with Repetition Coding

This paper considers the distributed estimation of a source parameter using quantized sensor observations in a wireless sensor network with noisy channels. Repetition codes are used to transmit quantization bits of sensor observations and a quasi best linear unbiased estimate is constructed to estimate the source parameter. Simulations show that the estimation scheme achieves a better power and spectral efficiency than the previous scheme.     

An α-expansin, VfEXPA1, is involved in regulation of stomatal movement in Vicia faba L.

The wall loosening of guard cells differs from other types of plant cells. However, the regulation of wall loosening during stomatal movement is poorly understood. VfEXPA1 is an α-expansin gene cloned from Vicia faba epidermal strips. Expression of VfEXPA1 is regulated by darkness and submergence, and is not affected by light and abscisic acid (ABA). In situ hybridization showed that VfEXPA1 is expressed primarily in the guard cells. Overexpression of VfEXPA1 in transgenic tobacco accelerated light-induced ...     

热压块铁(HBI)在电炉炼钢中的应用

以上海五钢集团第三炼钢厂试验为基础，通过对97炉现场试验结果的统计分析，得出了加入HBI后的脱硫、脱磷工艺和其他杂质元素（包括N，Ni,Cu,Sn,Sb,As等）含量的变化情况，并讨论了加入HBI后对各项技术经济指标的影响；研究了HBI的最佳加入比例和加入HBI后的优化炉料结构，提出了HBI的运输、储存和使用方面降低成本的途径。     

一种基于最小二乘的高频雷达信号处理方法

高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。为了获得足够的带宽，雷达采用一种非规则频率调制的波形。这种波形经过常规FFT处理后的旁瓣很高，严重影响了雷达的性能。为此，提出了一种基于最小二乘的信号处理方法，它具有处理方式简单，易于应用实现的优点，能够较好地抑制旁瓣，提高了雷达在恶劣电磁环境下的生存能力。     

葡萄籽油的提取与精制

对常规的葡萄籽油的有机溶剂提取法加以改进,先将葡萄籽粉碎,水选,离心分离后取仁,再用有机溶剂提取。对常规葡萄籽油的精制方法加以优化,减化常规方法中繁琐的油浴、加药、调pH、洗涤等操作,而将葡萄籽粗油直接进行水选离心分离。此方法依然满足工业上规模化和产业化的要求,为企业降低成本,减少环境污染,提供理论依据。     

TOPSISEvaluation Method on″Have Both Hardand Soft″Systems

1　Topsis Synthetical Evaluation MethodIn multiobjective decision making,if schemes are limit in number,then Topsis method isoften used.It can arrange order to each decision making scheme which is its advantage,Topsis method is as follows:1 ) Construct decision making matrix AA =x1 1 x1 2 … x1 mx2 1 x2 2 … x2 mxn1 xn2 … xnmHere,xijis value of j-th for i-th appraisal object,i=1 ,2 ,… ,n,j=1 ,2 ,… ,m.2 ) Construct normal decision making matrix YY =y1 1 y1 2 … y1 my2 1 y2 2 … y2 myn1 y…     

Study on the photosynthetic performances of Enteromorpha prolifera collected from the surface and bottom of the sea of Qingdao sea area

In this work, the photosynthetic performances of Enteromorpha prolifera thalli collected from the sur- face and bottom of the sea of Qingdao sea area were studied with chlorophyll fluorescence and oxy- graph technology. The samples with the highest photosynthetic activity among their kinds, the floating thalli from the sea surface of the south of the Qingdao Olympic Sailing Center and the sedimentary thalli from the mud surface of the bottom Tuandao bay, were chosen as representatives of surface thalli and ...