牛皮箱板纸工艺控制的研究

对牛皮箱板纸生产过程中的常见问题提出了解决途径，并从生产的角度介绍如何制造高质量的牛皮箱板纸。     

黄河万家寨水利枢纽配套工程龙口水利枢纽暖通设计

简要介绍了黄河万家寨水利枢纽配套工程龙口水利枢纽主厂房通风、采暖系统及副厂房采暖、空调系统的设计,总结了设计中的经验和体会。     

金属铽蒸馏速度的实验测定及理论计算

本文在５×１０－ ２ ～５×１０－ ３ Ｐａ真空条件下和１８２３～２０２３Ｋ 温度范围内对金属铽的蒸馏速度进行了实验测定及理论计算。对比分析了实验测定结果与理论计算结果的差别及其原因，提出了提高金属铽蒸馏速度的措施。     

Synthesis of 2‐hydroxypropyl dimethylbenzylammonium N,O‐(2‐carboxyethyl) chitosan chloride and its antibacterial activity

N,O‐(2‐carboxyethyl)chitosan (N,O‐2‐CEC) was prepared from chitosan with 3‐chloropropionic acid as modifying agent and NaOH as binding‐acid agent. 2‐Hydroxypropyl dimethylbenzylammonium N,O‐(2‐carboxyethyl) chitosan chloride (HPDMBA‐CEC) was obtained by the reaction of N,O‐2‐CEC with glycidyl dimethyl benzyl ammonium chloride (GDMBA) using NaOH as catalyst. The structures of chitosan derivatives were characterized by FTIR, ¹H NMR, and gel permeation chromatography. The antimicrobial activity of HPDMBA‐CEC was evaluated against a Gram‐negative bacterium Escherichia coli (E.coli) and a Gram‐positive bacterium Staphylococcus aureus (S. aureus). Compared with CTS, N,O‐2‐CEC, and HPDMBA‐CTS, HPDMBA‐CEC had much stronger antimicrobial activity, and this activity increased with increasing substitution degree of quaternary ammonium group (DQ). When the substitution degree of carboxyethylation (DS of CE) was 0.72 and DQ was 0.60, the minimum inhibitory concentrations (MICs) of HPDMBA‐CEC were 3.1 and 6.3 μg/mL against S. aureus and E. coli, respectively. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009     

Rise of cyborg microrobot: different story for different configuration

By integrating organic parts achieved through evolution and inorganic parts developed by human civilisation, the cyborg microrobot is rising by taking advantage of the high flexibility, outstanding energy efficiency, extremely exquisite structure in the natural components and the fine upgradability, nice controllability in the artefact parts. Compared to the purely synthetic microrobots, the cyborg microrobots, due to the exceptional biocompatibility and biodegradability, have already been utilised in in situ diagnosis, precise therapy and other biomedical applications. In this review, through a thorough summary of recent advances of cyborg microrobots, the authors categorise the cyborg microrobots into four major classes according to the configuration between biomaterials and artefact materials, i.e. microrobots integrated inside living cell, microrobots modified with biological debris, microrobots integrated with single cell and microrobots incorporated with multiple cells. Cyborg microrobots with the four types of configurations are introduced and summarised with the combination approaches, actuation mechanisms, applications and challenges one by one. Moreover, they conduct a comparison among the four different cyborg microrobots to guide the actuation force promotion, locomotion control refinement and future applications. Finally, conclusions and future outlook of the development and potential applications of the cyborg microrobots are discussed.Inspec keywords: medical robotics, cellular biophysics, mobile robots, molecular biophysics, polymers, microrobotsOther keywords: locomotion control refinement, actuation force promotion, combination approaches, biological debris, living cell, artefact materials, biomaterials, biomedical applications, biodegradability, exceptional biocompatibility, natural components, energy efficiency, human civilisation, purely synthetic microrobots, cyborg microrobot     

Synthesis and growth mechanism of carbonated hydroxyapatite whisker from natural collophanite via a template-directed homogeneous precipitation method

We reported a method to prepare carbonated hydroxyapatite (CHAP) whisker by a template-directed homogeneous precipitation process. In this process, natural collophanite was well purified and used as raw materials to promote the utilization of natural phosphorite resource. The results derived from XRD and FT-IR revealed that the as-prepared CHAP whisker had no impurities and crystallized completely. Its morphology observed by SEM and AFM showed a distinct whisker shape and a uniform distribution with the diameter in sub-micron scale and the length/diameter ratio of about 120–140, respectively. In light of the experimental results and the interface diffusion theory, a “step growth mechanism” was proposed to explain the formation of CHAP whisker in this process.     

基于灰色理论的压力管道风险分析技术研究——压力管道风险管理理论及其关键技术研究（4）

介绍了灰色系统理论及灰色预测的基本原理,建立了灰色预测数学模型GM(1,1),解决了压力管道风险分析过程中小样本、贫信息以及不确定的风险分析问题.     

数字调谐系统在组合音响上的应用

本文介绍了NEC公司大规模专用集成电路μPD1715G——016及其在组合音响上的应用,讨论了设计中的几点关键性问题,并分析了解决问题的方法和途径。     

Cr~(3+)在Pb/PbO_2电极上的电化学氧化

研究了Cr3+在Pb/PbO2 电极上的电氧化 ,确定了铬离子电氧化的最佳条件 :Cr3+浓度 0 35mol·L- 1 ,电流密度 1 98A·m- 2 ,硫酸浓度 4mol·L- 1 ,温度 44℃ ,硫酸铵浓度0 1 5mol·L- 1 。在此条件下 ,铬离子转化率为 74 2 8%,电流效率为 94 5 7%。     

空空导弹末端控制滑模导引律研究

针对现代空战中目标大机动条件下, 末端控制(ENDGAME)段导弹和目标间的相对运动, 结合滑模控制理论设计了工程上易于实现的滑模制导律, 并进行了仿真计算。最终仿真结果证明了滑模导引律比传统的比例导引律在ENDGAME中对目标机动有更好的制导性能。