营造服务营销中的"真实瞬间"

随着服务业的迅猛发展,服务企业间的竞争日趋激烈,提供优质服务已成为企业管理者越来越重视的问题。通过从服务特点中的不可分离性入手,确立了“真实瞬间”的概念,并由此提出了服务性企业提高服务质量的对策。     

内准字高职学报的过渡之路

内准字高职学报占高职院校学报的大多数，由于刊物没有正式刊号，学报面临社会认同度低、学报前景不明朗等诸多问题。通过从学报的内涵建设方面提出应对举措，使高职学报在内准字时期仍能发挥自身的独特作用，为过渡到公开刊物积累“财富”，并为提高学校的教学科研水平起到应有的作用。     

Next-generation electromagnetic sounding of the Moon

Electromagnetic (EM) sounding of the Moon, largely performed during the Apollo program, provided constraints on core size, mantle composition, and interior temperature. We present new analytical and numerical models that demonstrate the abilities of a next generation of EM sounding to (1) determine the electrical structure of the outermost 500 km and its lateral variability, specifically to understand the extent of upper-mantle discontinuities and the structure of the Procellarum KREEP Terrane; (2) determine the temperature and composition of the lower mantle; and (3) better constrain core size. New EM sounding need not rely on the Apollo methodology, which analyzed the magnetic transfer function between a surface station and a distantly orbiting satellite. Instead, a network of magnetometers (as few as two) can be used, or a complete sounding can be performed from a single station by measuring both electric and magnetic fields. Furthermore, in the magnetotail or lunar wake, sensors can operate from orbit, at altitudes up to the desired investigation depth. The twin-spacecraft ARTEMIS mission will test these methods and a lunar geophysical network will provide definitive results.     

姿控载荷多约束下的内外弹道联合优化

为提升固体运载器整体性能,提出一种姿控载荷多约束的内外弹道联合优化建模方法。首先,建立固体运载器内弹道计算模型和外弹道计算模型,给出大风区和级间分离的姿态控制模型以及杆状减阻装置载荷计算模型。其次,以灵敏度分析方法选择出内外弹道设计参数作为优化设计变量,将姿控摆角需求、减阻杆承载能力作为约束条件,建立以射程最优为目标的优化模型。最后,将该方法应用在某三级固体运载器的优化设计中,以差分进化算法开展仿真校验,射程提高了10.8%,并且优化结果满足姿控和载荷约束。     

人造毛皮机微电脑控制器的设计与实现

本文介绍一种新型的人造毛皮机微电脑控制系统，文中详细介绍控制系统的组成，工作原理及软件设计，该控制系统采用微电脑技术和步进电机技术帝现了对各梳理头喂毛量的精确控制，以确保毛皮的均匀性和质量，同时系统还具备各种自停报警功能的统计功能。