Andy@PowerPodinFerroelectrics Research ArticlesA new double L-shaped multiband patch antenna on a polymer resin material ubstrateThe proposed small antenna was designed and analyzed using a finite-element method-based, commercially available, high frequency structure simulator, and fabricated on a printed circuit board. The measured −10 dB return loss bandwidths were 220 MHz and 650 MHz at 4.85 GHz and 8.10 GHz center frequencies.May 9, 2014May 9, 2014
Andy@PowerPodinFerroelectrics Research ArticlesNanoscale ferroelectrics: processing, characterization and future trendsThis review paper summarizes recent advances in the quickly developing field of nanoscale ferroelectrics, analyses its current status and considers potential future developments. The paper presents a brief survey of the fabrication methods of ferroelectric nanostructures and investigation of the size effects by means of scanning probe microscopy. One of the focuses of the review will be the study of kinetics of nanoscale ferroelectric switching in inhomogeneous electrical and elastic fields. Another emphasis will be made on tailoring the electrical and mechanical properties of ferroelectrics with a viewpoint of fabrication of nanoscale domain structures.May 9, 2014May 9, 2014
Andy@PowerPodEffect of P to B concentration ratio on soft magnetic properties in FeSiBPCu nanocrystalline alloysThe effects of P to B concentration ratio on magnetic properties and microstructure in annealed Fe82.65Si2B14xPxCu1.35 (x=1-6) soft magnetic alloys prepared by melt spinning were investigated. The proper substitution of B with P was found to be effective in decreasing grain size in the alloys annealed at 793 K for 120 s. The coercive force Hc markedly decreases from 67.1 to 1.1 A/m and the saturation magnetic flux density Bs shows a slightly decreasing trend with increasing P content from x¼1 to 5. The nanocrystalline Fe82.65Si2B9P5Cu1.35 alloy, with an average grain size of 15 nm, shows a combination of high Bs and excellent soft magnetic propertiesMay 9, 2014May 9, 2014
Andy@PowerPod苹果可能以 32 亿美元收购耳机及音乐流媒体产商 Beats Electronics重塑 iTunes 音乐业务以及为苹果品牌添加 “新元素”,后者主要针对三星为 Galaxy 系列量身打造的越来越成功的 “the nex big thing” May 9, 2014May 9, 2014