信息化进程中计算机硬件学科建设的持续自主创新

目前,我国的信息产业也在不断的飞速发展,而信息化发展的进程中,计算机硬件学科也加入了其发展的行列,并长期以来一直坚持着可持续发展的自主创新理念。本文首先介绍了信息化的发展进程,接着分析了计算机硬件学科的建设的自主创新的坚持的主要原则,最后明确的阐述了计算机硬件学科,在建设的持续自主创新中采取的有利措施。     

铝阳极氧化膜颜色的检验和观察法

介绍铝及铝合金阳极氧化膜颜色的概念和描写,对颜色的儿种测量方法进行了比较,重点分析观察法及其在各国标准中的异同。在此基础上,提出了GB8013中的对颜色进行观察的条件和理论根据。     

Synthesis,Micellization, and Surface Activity of Novel Linear-Dendritic Carboxylate Surfactants

Two generations of novel linear-dendritic carboxylate surfactants C₁₈-G₁-(COONa)₂ and C₁₈-G₂-(COONa)₄ have been synthesized by the divergent method and their structures are characterized by ¹H Nuclear Magnetic Resonance and Infrared analysis. The electrical conductivity measurement is used to measure the Krafft temperatures of C₁₈-G₁-(COONa)₂ and C₁₈-G₂-(COONa)₄, which are much smaller than those of the corresponding conventional surfactant sodium stearate. The markedly enhanced solubility of two linear-dendritic surfactants is ascribed to the high hydrophilicity of surfactant headgroups induced by the carboxylate and ester groups. The critical micelle concentration (CMC) values obtained from both the electrical conductivity and surface tension measurements indicate that the micellizations of linear-dendritic surfactants become favorable with the increase in the number of the surfactant headgroup. However, the surface activity parameters including the surface tension at the CMC, maximum surface excess, and minimum surface area reveal that C₁₈-G₁-(COONa)₂ exhibits greater efficiency in absorbing at the air/water interface compared to C₁₈-G₂-(COONa)₄, owing to their different steric repulsions of the surfactant headgroups. In addition, C₁₈-G₁-(COONa)₂ and C₁₈-G₂-(COONa)₄ have higher emulsifying ability than the conventional surfactants sodium stearate and sodium octadecyl sulfate.     

含硼金刚石的金属包膜成分及其物相的研究

本文采用铁基触媒加入硼铁的方法，在高温高压条件下合成了含硼金刚石，利用电子探针（EPMA），透射电子显微镜（TEM）两种检测手段，分析了含硼金刚石金属包膜的微观组织结构，化学组成成分，各组成成分的物相及其可能形成的原因。研究结果表明：金属包膜的成分及其物相由正交立方结构的（Fe,Ni）3C，面心立方的γ-（Fe,Ni），面心立方的Fe23（C，B）。及少量的FeB,Ni3B组成，这些成份主要来源于原材料，其含量在高温压过程中是瞬间变化的。     

在铸造过程中实施渗碳的效果及机理

采用在铸型中放置石墨片，然后浇注低碳合金钢的方法，制造表面耐磨材料。分析了铸造过程中渗碳的效果及机理，讨论了影响组织和渗层深度的因素。     

一种适合卫星可靠组播的差错恢复方案*

针对卫星网络高误码率、长延时等特点,提出了一种适合卫星可靠组播的差错恢复方案。该方案采用异或（XOR）编译码的方法,可以一次重传恢复多个丢失的数据包;在此基础上,设计了一种基于重传矩阵预处理的最优重传策略来实现重传数量最小化。仿真结果证明了该可靠组播差错恢复方案在卫星环境中的有效性。     

The visual fiducial based pose estimation of mobile manipulator in large-scale components manufacturing

The accurate estimation of the end-effector’s pose in large operating spaces is the key for the mobile manipulator to realize efficient manufacturing of large and complex components. We propose a novel pose tracking method in large-range using visual fiducial markers, and further propose the layout optimization method for the encoded fiducial markers. A metric named orientational dilution of precision (ODOP) is proposed to evaluate the magnification of the pose estimation error compared with the measurement error of the coded fiducial markers. The distribution pattern of the coded markers is analyzed based on ODOP, and the square-shaped layout is determined to be a satisfactory distribution pattern for the minimum positioning unit of markers, and the side length of the square-shaped layout is further selected. The simulations and experiments prove the effectiveness of the ODOP index. Finally, the square-shaped layout and the designed distribution density for positioning coded markers are adopted to realize the high-precision measurement of large components by the mobile manipulator.

     

地梢瓜八宝茶的研制与开发

八宝茶合八宝的功效于一体,富含营养,具有补血养气、消暑败火等功效.通过前期实验确定了八宝茶最佳配方.现主要研究八宝茶中地梢瓜、黑枸杞、黄芪3种主要成分的浸提工艺,并对八宝茶理化指标进行检测.以感官评定为主要评价手段,利用单因素实验和正交试验确定了八宝3种主要成分的浸提温度、浸提时间、料液比等工艺条件.结果表明:八宝茶的最佳浸提参数为浸提温度85℃,浸提时间6 min,料液比1∶30;理化指标检测结果表明,八宝茶水分、灰分含量合理,微生物指标符合国家标准的要求.此研究对八宝茶的工业化生产具有重要的参考价值.     

中国眼镜产品的质量现状

监督抽查是加强质量管理、提高产品质量的重要工作.综合地分析了近年来国家及各地区的市场监管部门对眼镜产品的监督抽查情况,为眼镜产品的质量监督工作提供数据支撑.     

玻璃纤维分束器工艺技术改进研究与应用

为了降低玻璃纤维生产成本,提升分束纱产品质量,增加市场竞争优势,根据分束纱生产工艺线特点,从分束器设计开发及工艺技术调整应用方面进行攻关,研制开发出了特殊的拉丝分束装置,解决了拉丝过程中玻璃纤维在分束器处飞丝和浸润剂浪费的问题.