以任意高维纠缠态为量子信道的受控隐形传态

目的是利用高维量子纠缠态为量子信道，讨论未知单粒子态的受控隐形传输问题。以三维量子纠缠态为信道，提出一个二维任意单粒子态的受控隐形传输协议。提出了以任意[d]-维量子纠缠态为量子信道，[t]-维任意单粒子态的隐形传输协议[(t相似文献   

基于改进蚁群算法的三维路径规划

针对移动机器人在海水环境中的三维路径规划问题容易陷入局部最优和收敛慢等瑕疵，根据三维环境全局信息来改进蚁群算法以提高实时性和收敛速度。改进蚁群算法的启发函数，采用局部信息和全局信息结合动态地改进信息素更新方式，以及根据三维空间中路径的平坦程度和光滑度二阶微分分别增加了一阶微分和二阶微分来再次修改信息素更新规则。仿真对比实验结果显示改进后的蚁群算法克服了收敛速度慢、容易陷入局部最优的缺点。     

In2S3-NiS co-decorated MoO3@MoS2 composites for enhancing the solar-light induced CO2 photoreduction activity

In₂S₃-NiS co-decorated MoO₃@MoS₂ (INS/MoO₃@MoS₂) heterojunctions were prepared in nonthermal plasma via the in-situ sulfurization for enhancing the solar-light photocatalytic conversion of CO₂ into CH₄ and CO at 423 K. In contrast with hexagonal h-MoO₃ nanorods, CH₄ and CO yields were enhanced by h-MoO₃@MoS₂ and In₂S₃/MoO₃@MoS₂, while the increased CH₄ yield and decreased CO yield were obtained by INS/MoO₃@MoS₂ and NiS/MoO₃@MoS₂. The optimal 3-INS/MoO₃@MoS₂ with a nominal NiS-In₂S₃ content of 5.0 wt% and a In/Ni molar ratio of 2:1 exhibited the best photoreduction activity of CO₂, of which CH₄ and CO yields were 49.11 and 6.19 μmol g⁻¹ h⁻¹, respectively. It's ascribed to the tight interface for enhancing the visible-light absorption capacity and reinforcing the transfer and separation of charge carriers. S-rich sites and O vacancies were favorable for the adsorption and photoreduction of reactants on the bulks surface. The nonthermal plasma induced in-situ sulfurization was thus a promising route to fabricate metal sulfides-based heterojunctions.     

高斯混合模型结合加权似然的目标跟踪算法

鉴于高斯混合模型对背景变化快时无法精确检测出目标和目标跟踪的适应性差等瑕疵，提出了基于加权似然跟踪器来改进高斯混合模型实现运动目标跟踪算法。主要引入了自适应高斯混合模型来实时检测运动目标，然后空间加权似然来进行视频中的目标定位，引入加权似然期望值来改进高斯混合模型处理视频中的多尺度、多角度变化的目标跟踪不精准问题。通过VOT 2014 dataset对比实验结果表明提出的基于加权似然跟踪（Weighted Likelihood Tracking，WLT）和改进高斯混合模型（Improved Gaussian Mixture Model，IGMM）的目标跟踪算法较传统高斯混合模型跟踪算法在跟踪的精度有较大提高。在应对多尺度、多角度变化的目标跟踪表现出了较大的优势。     

600MW超临界CFB机组深度调峰运行技术

经通过分析超临界CFB机组在深度调峰方面的优势,结合600MW超临界CFB机组的实际运行工况,提出机组在深度调峰前应开展的试验工作。研究600MW超临界CFB机组的深度调峰过程,从汽机、锅炉、电气等方面提出有效的技术措施,解决深度调峰可能带来的锅炉流化不良、环保参数控制困难等问题。通过在600MW超临界CFB机组上应用,机组在30%负荷深度调峰运行,工况稳定,各项参数正常,取得了较好效果。     

超临界CFB机组汽动给水泵油中进水分析

白马循环流化床示范电站600MW超临界CFB机组自投运以来,A、B汽动给水泵组经常出现润滑油质偏差现象,主要原因为油中含水过大造成。通过对给水泵相关系统进行全面的分析研究,指出了润滑油进水的原因是,给水泵轴承和密封水采用的呼吸器易堵塞造成回油室为较大负压状态。给水泵转速变化时,低压密封水室压力轻微波动,微正压的水进入微负压的回油室,造成油中微量带水。经过分析研究提出改进建议,运行后取得了较好效果,汽动给水泵组的油中含水量大幅降低,保证了机组安全稳定运行。     

甘蔗产业扶贫的发展模式探讨与应用实践

以内江隆昌市龙市镇点灯村为例,概括了内江甘蔗产业发展历史及现状,通过分析甘蔗产业在精准扶贫中的发展模式,提出甘蔗产业扶贫以科技为支撑、多方入股经营模式、建立产业基地、完善保险机制以及三产融合发展等5点建议,以期为产业扶贫提供思路。     

A novel hierarchical Bi2MoO6/Mn0.2Cd0.8S Heterostructured Nanocomposite for Efficient Visible-light hydrogen production

In this work, a series of Mn_xCd_1-xS solid solutions as efficient photocatalysts for hydrogen evolution with visible light response were synthesized via a co-precipitation method firstly. Then, the hierarchical Bi₂MoO₆/Mn_0.2Cd_0.8S heterostructured composite was prepared by combining Mn_0.2Cd_0.8S composite with Bi₂MoO₆ nanocrystalline through a hydrothermal process. The optimized Mn_0.2Cd_0.8S composite's photocatalytic activity is more than 3 times of pristine CdS and the prepared Bi₂MoO₆/Mn_0.2Cd_0.8S nanocomposites exhibited a significantly improved photocatalytic activity for hydrogen evolution from water with visible light response comparing with single Mn_0.2Cd_0.8S composite. The optimized photocatalytic activity of Bi₂MoO₆/Mn_0.2Cd_0.8S composite is around 10 times of pristine CdS. The excellent photocatalytic activity of Bi₂MoO₆/Mn_0.2Cd_0.8S composite might be ascribed to the well-matched energy band structures of the Bi₂MoO₆ and Mn_0.2Cd_0.8S. Furthermore, the heterojunctions in Bi₂MoO₆/Mn_0.2Cd_0.8S composite might also do some contributions to improve its photocatalytic activities to some extent. A possible photocatalytic mechanism was proposed. Due to its excellent photocatalytic activity and good stability for hydrogen evolution from water, the obtained hierarchical Bi₂MoO₆/Mn_0.2Cd_0.8S composite has potential application in photocatalytic hydrogen evolution from water by using solar power.     

RFRL30型剑杆织机用于丝织物织造的工艺调试探究

RFRL30型剑杆织机是一款高性能织造设备,已经广泛应用于各种复杂服装面料、装饰布、滤布、安全织物等领域。近年来,越来越多的客户也在使用RFRL30型剑杆织机织造丝织物,为了提高织机运转效率、提升面料质量,针对丝织物的纱线特点和面料要求,文章探究了RFRL30型剑杆织机生产丝织物过程中织机工艺参数的调节及注意事项;针对特殊品种的织造,通过反复试验织机的调试工艺参数,找到了最佳状态,满足了客户需求。     

High-temperature sulfurized synthesis of MnxCd1-xS composites for enhancing solar-light driven H2 evolution

In recent years, tremendous efforts have been devoted to develop new photocatalyst with wide spectrum response for H₂ generation from water or aqueous solution. In this paper, Mn_xCd_1-xS composites were in-situ fabricated via the high-temperature sulfurization to enhance the solar-light photocatalytic capacity of H₂ evolution. Benefiting from the S defects and junction interface between MnS and CdS, Mn_xCd_1-xS composites exhibited the better H₂ evolution rate than pure MnS. The H₂ evolution rate of optimal Mn_0.5Cd_0.5S with a Mn(II) content of 22.52% and a Mn/Cd mole ratio of 0.95:1 was 9.27 mmol g^?1 h^?1, which was 35.65 and 2.38 times higher than pure MnS (0.26 mmol g^?1 h^?1) and CdS (3.89 mmol g^?1 h^?1), respectively. In addition, H₂ evolution capacity of Mn_0.5Cd_0.5S decreased from 44.83 to 41.66 mmol g^?1 after three cycles. Mn_0.5Cd_0.5S prepared via the high-temperature sulfurization was thus a potential material for solar-light induced H₂ generation.