Deterministic transmission of an arbitrary single-photon polarization state through bit-flip error channel

We present two error-tolerance transmission protocols of a single-photon polarization state when bit-flip error is taken into account. For achieving the transmission target of the single-photon state, the first protocol needs to encode it to a nonmaximally entangled Bell state. Exploiting the interaction of the polarization entanglement with spatial entanglement between two photons, its success probability is 100 %. Different from the first protocol, the second one utilizes the idea of teleportation with an auxiliary Bell state. By performing quantum nondemolition measurement to analyze the parity, conventional measurement, and unitary transformation operations, the success probability of the second protocol is approximately unity. Furthermore, the second protocol can be generalized to the error-tolerance transmission of an arbitrary mixed state or the distribution of an arbitrary multi-photon entangled state.     

小尺寸TS-1的合成及其催化油酸甲酯环氧化

为高效催化大尺寸油酸甲酯（MO）分子环氧化反应制备绿色增塑剂环氧油酸甲酯（EMO），采用水热法合成钛硅沸石（TS-1）和纯硅沸石（S-1），进一步利用水蒸气辅助晶化法成功制备了小尺寸的纳米TS-1（TS-1-s）和S-1（S-1-s）催化剂。重点考察了TS-1-s催化剂合成过程中溶胶干燥温度、溶胶与水质量配比、水蒸气晶化温度和晶化时间对其微观结构和催化油酸甲酯环氧化反应性能的影响。进一步，采用了XRD、UV-vis、SEM、TEM等手段对TS-1-s催化剂的结构进行了系统的表征。结果表明，相较于传统大晶粒TS-1催化剂（MO转化率39.20%，EMO选择性82.56%），TS-1-s催化剂表现出更优异的催化性能（MO转化率53.58%，EMO选择性85.48%）。     

流动条件下炔氧甲基季胺盐的缓蚀性能研究

利用交流阻抗(EIS)、线性极化、动电位极化和失重法，研究了炔氧甲基季胺盐对N80在常温CO2饱和的3％NaCl溶液中的电化学行为和缓蚀性能的影响．结果表明：空白溶液中N80的累计失重在4m／s以后急剧增大，即介质的临界流速为4～5m／s．动态下炔氧甲基季胺盐存在与静态下相同的浓度极值现象，流速低于5m／s时缓蚀剂的极值浓度与静态时相同，都为150mg／L，而流速高于5m／s后极值浓度有所增加．     

二次冷轧机组宽中浪板形缺陷控制研究

针对某DCR（Double Cold Reduction）二次冷轧机组经常出现宽中浪板形缺陷的问题，基于二次冷轧的生产工艺特点，通过分析计算，发现1#机架与2#机架承载辊缝比例凸度相差较大是宽中浪板形缺陷产生的主要原因，且鉴于该机组现有中间辊轴向横移和弯辊调控手段都不能有效消除该类板形缺陷，设计了1#机架中间辊辊型，该辊型在有效减少1#机架与2#机架承载辊缝比例凸度差异的同时，轧机的弯辊调控功效、中间辊轴向横移调控功效以及辊缝横向刚度都得到了有效提升。     

变形处理对Al-Ti-C中间合金的影响

研究了变形处理对Al-Ti-C中间合金细化效果的影响。研究表明，采用不同的变形手段对Al-Ti-C中间合金变形以后，其细化效果明显下降，而且随变形量的增加，细化效果下降愈严重。作者分析了变形后Al-Ti-C中间合金的微观组织，发现变形后TiAl3相呈断裂状态，而且在TiAl3相内部分布的TiC颗粒与其分离开来。作者认为这是造成Al-Ti-C中间合金细化效果下降的主要原因。     

Ni-P-SiO2(纳米)化学复合镀研究

通过Ni-P化学镀及Ni-P-SiO2(微米)、Ni-P-SiO2(纳米)化学复合镀探讨纳米SiO2颗粒对镀速及镀层性能的影响。结果表明：添加适量的SiO2纳米粒子于镀液中，使镀速上升，所得镀层硬度、耐磨性等性能相对于Ni-P镀层及微米颗粒复合镀层都有显著地提高。     

控制技术及模糊控制在冲天炉熔炼中的应用

介绍了国内外冲天炉熔炼控制技术的发展状况。在分析国内铸造业具体情况后，提出了采用人工智能控制技术中的模糊控制理论对冲天炉熔炼控制的可行性和发展方向。     

柬教官计算机专业外训教学探索

近年来,我室承担了柬埔寨教官计算机专业培训的外训教学任务,由于没有外训经验,教学过程中面临许多新问题,任务艰巨。如何有效实施计算机专业外训教学,提升外训教学水平是当前迫切需要探索的课题。从柬教官的特点和计算机专业的特点出发,对外训教学的规范化问题提出了几点看法,以期为提高教学效果提供借鉴。     

The design and test of dual/triple‐mode bandpass filter based on temporal coupled‐mode theory

In this article, the design and test of both a K‐band dual‐mode bandpass filter (BPF) pair and a K‐band triple‐mode BPF are presented based on N‐mode temporal coupled‐mode theory (CMT). The expressions of transmission and reflection responses are analytically derived. All the parameters in the expressions have clear physical meanings and are easily optimized to reach the required filter performance. Aided by eigenmode simulations, concrete structures of the three integrated BPFs are designed and optimized to approach the calculated physical parameters. After the fabrications and measurements of the three BPFs, extended upper/lower stopband with high stopband rejections are achieved, and by increasing the number of resonant modes, improved frequency selectivity and better passband flatness are obtained. The analytical analysis well predicts the simulation and measurement results, which provides an efficient way for BPF designs. © 2016 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:609–622, 2016.