摘要：为了提高公路工程造价预测精度,总结了影响公路造价的特征因素,从拓扑结构、传递函数、初始化权值和阈值、数据归一化处理等方面构建了BP神经网络预测模型。同时,搜集了某省多条公路信息,利用BP神经网络对公路造价进行预测,以相对误差为评价指标,对预测精确度进行评价。

摘要：设计了一种高质量和快速的立体匹配方法，首先在粗分辨率的影像上获取立体影像的重叠区域和初始视差值，而后采用互信息作为匹配测度并采用一种通过一维路径聚合的全局优化方法得到精确的视差值。匹配方法采用图形处理器进行了加速，得到了很好的加速比。实验结果表明了该匹配方法的正确性和高效率性。

摘要：传统劲性水泥土复合桩的内芯多采用预应力混凝土管桩,其仅依靠内外芯的摩擦和黏结来传递荷载。现场调研发现,水泥土桩与管桩界面的胶结力较小,依据规范进行设计时,内界面抗剪强度往往取值很低。针对此种情况,将内芯预应力混凝土管桩替换为钢管桩,探寻其与外芯水泥土桩间界面的抗剪强度,同时又提出将外表面具有螺旋叶片的钢管桩作为新型内芯桩。针对内芯为无肋钢管及螺旋叶片钢管的桩段试样进行了内界面剪切试验,分析了内界面极限剪切力的影响因素并进行了定量数据表征。获得了新型组合桩的内外芯剪切破坏模式及内界面抗剪强度参数的演化规律和计算方法,从而对《劲性复合桩技术规程》(JG/T023-2007)桩体承载力计算公式中的内界面抗剪强度参数取值进行了修正。

摘要：针对现有的输变电设备在线监测网络在数据共享、设备通用性和网络拥塞等方面存在的问题,结合物联网技术,采用接入网和汇聚网两级通信网络结构进行变电站和输电线路的通信网络设计,通过汇聚网络的流量控制与通信流重定向解决通信网络拥塞;提出了异构双网双通道设计方法,以提高通信网络容错能力并实现了设备在线监测与资产巡检应用的紧密结合;设计了在输电线路采用无线Mesh+OPGW光纤的组合方案,并在现场进行了实测。验证结果表明:点对点远距离通信、单跳中继距离、稳定带宽和比特误码率均可以较好地满足要求,为偏远地区输电线路在线监测信号的远距离传输提供了一种有效的手段。

摘要：针对机载LiDAR点云提取城区道路自动化程度低以及提取道路网不完整的问题,提出一种基于偏度平衡算法自动提取城区道路的方法。首先,计算末次回波点云中邻近点的坡度,依据城市道路设计标准选择坡度阈值,分离非地面点并获得初始道路点云;然后,利用偏度平衡算法计算出最优强度阈值,滤除非道路点,再结合道路与停车场的空间位置关系,通过点距精化初始道路点云;最后,对道路区域进行细化和平滑,得到道路中心线。通过定量分析及对比实验,该方法能够自动地从LiDAR点云中提取出较为完整的道路网。

摘要：This paper presents an up-to-date study on the observer-based control problem for nonlinear systems in the presence of unmodeled dynamics and actuator *** introducing a dynamic signal to dominate the unmodeled dynamics and using an adaptive nonlinear damping to counter the effects of the nonlinearities and dead-zone input,the proposed observer and controller can ensure that the closed-loop system is asymptotically stable in the sense of uniform ultimate *** one adaptive parameter is needed no matter how many unknown parameters there *** system investigated is more general and there is no need to solve Linear matrix inequality （LMI）.Moreover,with our method,some assumptions imposed on nonlinear terms and dead-zone input are ***,simulations illustrate the effectiveness of the proposed adaptive control scheme.

摘要：HCSB-DEMO concept design is carried out at *** order to handle power from a core plasma region,a super-X divertor is preliminarily designed and investigated for *** increases the target surface area by expanding the magnetic flux surface with another X-point generated near the targets and increases the parallel connection length by moving the outer divertor target to larger R and *** heat load at the targets is investigated by *** heating power flowing into SOL/divertor regions being P=600 MW,when the density at the separatrix is ne=3.5×10^(19) m^(-3),the peak heat load at the inner and outer divertor is 9.2 MW/m^(2) and 3.7 MW/m^(2),respectively,which is much less than those of the standard divertor without impurity seeding,and also below the design targets(10 MW/m^(2)).Thus the super-X divertor may work well for HCSB-DEMO to solve the high heat load problem at the divertor target without impurity seeding from this preliminary concept design and simulation.

摘要：A conceptual design study of the HL-2M facility has shown that one can create not only a standard single-null divertor configuration on it,but also a second-order null(snowflake(SF))*** the SF divertor,the magnetic flux expansion closes to the separatrix and exceeds that of the standard configuration by more than a factor of 4 at the outer *** heat load at the divertor targets of this innovative configuration has been investigated by using *** is shown that the heat load it targets is different from that of the standard *** a result of the magnetic flux expansion,the peak heat load reduces and does not concentrate on a small area near the *** heat load profile becomes flat as compared to the standard *** the upstream density is 2.0×10^(19)/m^(3) with 10 MW heating power flowing into the SOL/divertor regions,the peak load at the outer divertor is 1.64 MW/m^(2) for the SF divertor,but it is 3.2 MW/m^(2) for the standard divertor,so the SF divertor can mitigate the heat load at the divertor targets when HL-2M operates at low plasma density and high heating power.

摘要：文化产业是通过创造文化、传播文化与消费文化有机统一的经济形态。为了把握文化产业的经济属性和社会属性,既要认识文化产品艺术性、审美性、文化性、直观性、想象性、情感性和精神性特征,又要把握文化产业文化传播性、意识形态性、价值共享性、自然的人化性和心灵服务专业性的特征。发展文化产业,要遵循市场规律和价值规律,遵循文化发展的一般规律和特殊规律。文化产业的经济属性既具有一般经济活动的属性特点,也具有个性创造、快速便捷、复制拷贝、绿色环保、高附加值和高风险性的特点。文化产业的社会属性包括文化产品所体现出来的政治、法律、道德、艺术、哲学和宗教等社会意识形态的价值取向,也包括文化产品所蕴含的人性、自由、理想、理性、情感、意志、欲求、趣味和心理等人文情怀。用真善美三个维度来判断文化产业的社会属性,建构判断文化产业社会属性的指标体系,实现合规律性与合目的性的和谐统一。要实现文化产业的社会属性,需要提高文化创意者的创意水平和文化企业的创造能力,提高文化产品消费者的消费能力,畅通文化产品的生产、传播与消费渠道,需要文化产品具有特殊的魅力,要有保障机制,建立优良的文化产业人才机制、文化产业发展机制、文化产业评价机制和文化产业管理机制。

摘要：《食品安全法》的出台,并没有使明星代言虚假广告问题得到根治。代言明星与雇用人存在劳务合同关系,与消费者却不存在合同关系。当消费者遭受虚假广告损害时,通过合同法不能得到周全保护。许多国家和地区将代言明星列为广告法律关系的主体,明确规定代言明星对消费者负有注意义务。尽管中国法律对明星代言行为存在制度缺失,但是在民法基本原则框架下,正确适用《侵权责任法》第8条的规定仍然能够给予消费者有力的救济。