摘要：为了解决在服装网购过程中消费者不能现场试衣,导致所购服装合体性不佳、退货率较高的问题,以女式T恤为例,通过文献搜集、专家访谈和实证研究的方式,确立了服装关键部位的合体性松量阈值及不同廓形的判定标准,并以此为基础构建了一套完善的尺码推荐系统。系统数据库储存服装规格尺寸、用户个人尺寸等信息,前端采用bootstrap框架设计,后端使用C#语言开发,系统采用二次函数作为核心算法,通过计算与比较不同尺码的函数值,实现服装尺码智能推荐。经实验验证本系统的推荐准确率达88%以上,可以在一定程度上消除购物疑虑,减少物流成本,促进服装电子商务的发展。

摘要：The effects of Fe content on the microstructure,phase constituents and microhardness of the as-cast,800℃or 1000℃-annealed Al_(7)Cr_(20)Fe_(x)Ni_(73)−x(x=13−66)alloys were *** all these alloys are composed of the single FCC *** BCC and B2 phases are *** is confirmed that the BCC phase in the Al7Cr20Fe66Ni7 alloy is transformed from the FCC phase at about 900℃ during *** in the 800℃-annealed Al7Cr20Fe60Ni13 alloy,the FCC phase is stable and the hardness *** annealing at 1000℃,for the precipitation of the B2 particles,the Al content in the FCC phase decreases,which results in decreasing of the alloy ***,after annealing at 800℃,a small amount of Al-rich B2 particles precipitate at the phase boundary and some nanocrystal BCC phase precipitates in the FCC matrix,which increases the hardness of the Al_(7)Cr_(20)Fe_(x)Ni_(73)−x(x=41−49)*** results will help to the composition design and processing design of the Al−Cr−Fe−Ni based high-entropy alloys.

摘要：介绍一种AD公司生产的AD9059型高性能、双通道数据采集电路。以AD9059为核心, 以CPLD为基础,介绍一种双通道高性能的数据采集系统,并给出数据采集的主要软件设计流程。

摘要：文章介绍了一种 AD公司生产的高性能、双通道数据采集芯片 AD90 5 9。以AD90 5 9为核心 ,以 CPLD为基础 ,介绍了一种双通道高性能的数据采集系统 。