Excellent magnetic softness in TbFe/FeCoV multilayers

[Tb4oFe6o（x nm）/Fe49Co49V2（y nm）]N multilayers were prepared by multitarget magnetron sputtering using a rotary turn-table technique in a stop-and-go mode. The mulfilayers were investigated using X-ray diffraction, field emission scan electron microscopy and vibrating sample magnetometry. The result shows that the coercive field drops abruptly with increasing number of bilayers, and it remains generally stable when the number of bilayers is 10 or higher. An excellent magnetic softness with a coercivity of 1.0 mT is obtained for x = 5 and y = 5 after annealing at 250℃. A crystalline state is observed in FeCoV layers before and after annealing by X-ray diffraction.

Ultrathin Multilayer Films Incorporating Keggin-type Heteropolyanion Clusters

Two new ultrathin multiplayer films have been successfully prepared fi-om Keggin-type heteropoly acids H-4[SiW12O40] and H-3[PMo12O40] with polyelectrolytes PEI, PSS, and PAH, using the electrostatic layer-by-layer self-assembly, technique. The XR results reveal their film thickness at nanoscale (similar to 20 nm). According to the AFM images, it is believed that the surface roughness (rough degree of film surface) of the polyelectrolyte-polyoxometalate film greatly depends on the kind of polyoxometalates.

Nanoscale Multilayered ZrAlN/ZrB_(2) Coatings Synthesized by Magnetron Sputtering

Multilayered ZrAlN/ZrB2 coatings containing alternating bilayer periods were synthesized by dc magnetron sputtering technique. The intensities of ZrN （111） or ZrN （200） textures in the structure of the nanolayers depended on the bilayer period as well as N2 gas partial pressure during deposition. Nanoindentation testing showed that hardness and internal stress of the nanolayers varied with the bilayer period and crystallographic orientation in the coatings. The hardness of the nanolayers with bilayer periods of 3-6 nm was enhanced （-27%） over the rule-of-mixture value. A low percent of N2 in processing gas was proved to be benefitial to the synthesis of high hard nanoscale multilayered coatings.

无线通信系统的封装技术

本文讨论了两种适于低成本、小形状因子的无线通信系统的封装工艺。首先描述了一种嵌入式无源工艺,其目标在于减小RF前端模块的形状因子和基带电源供应,方法是使用高性能的电感、电容、电阻,以及在封装衬底上嵌入的衍生电路。其次,描述了一种新的堆叠封装结构,它适用于通信和无线产品。此封装方案在单一封装内集成高速处理器和存储器,提供优异的信号完整性和高布线密度。

Optimal Operation of Micro-energy Grids Considering Shared Energy Storage Systems and Balanced Profit Allocations

Following the unprecedented generation of renewable energy,Energy Storage Systems(ESSs)have become essential for facilitating renewable consumption and maintaining reliability in energy networks.However,providing an individual ESS to a single customer is still a luxury.Thus,this paper aims to investigate whether the Shared-ESS can assist energy savings for multiple users through Peer-to-Peer(P2P)trading.Moreover,with the increasing number of market participants in the integrated energy system(IES),a benefit allocation scheme is necessary,ensuring reasonable benefits for every user in the network.Using the multiplayer cooperative game model,the nucleolus and the Shapley value methods are adopted to evaluate the benefit allocation between multiple users.Numerical analyses based on multiple micro-energy grids are performed,so as to assess the performance of the Shared-ESS and the proposed benefit allocation scheme.The results show that the micro-energy grid cluster can save as much as 38.15%of the total energy cost with Shared-ESS being equipped.The following conclusions can be drawn:the Shared-ESS can significantly reduce the operating costs of the micro-energy grid operator,promote the consumption of renewable energy,and play the role of peak-shaving and valley-filling during different energy usage periods.In addition,it is reflected that the multiplayer cooperative game model is effective in revealing the interaction between the micro-energy grids,which makes the distribution results more reasonable.

The correlation of the energy resolution of incident light with the measured reflectance of multilayers

This paper presents an expression for describing the correlation of the energy resolution of incident light with the measured reflectance of multilayers, and gives a new method for calculating the polychromatic-light reflectance of multilayers. Using this method we give the reflectance spectrum of some multilayers in the case in which the incident light is polychromatic. The theoretical analysis shows that for the multilayers of a given design the peak reflectance of the polychromatic light is smaller than that of the monochromatic light, but no-peak reflectance of the polychromatic light is bigger than that of the monochromatic light. Further, the measured reflectance spectrum will be a line if the energy resolution is less than a decided value. The shorter the design-wavelength of the multilayer, the stronger the effect of the energy resolution on the reflectance.

DETECTION OF MULTILAYER CIRRUS CLOUD USING FY-1C DATA

There are ten channels in the FY-1C polar-orbiting meteorological satellite of China.These channels cover visible,near-infrared and infrared spectral bands.Based on simulating analysis of single layer and multilayer clouds that cirrus clouds possibly overlap low water clouds,the case study using FY-1C data is performed.Results show that FY-1C data can be used to analyze multilayer clouds,especially for the ease of low water cloud overlaid by cirrus.