摘要：本文以流媒体电影崛起现象为研究背景,结合当今互联网技术和视听科技背景,针对流媒体对当今视听行业格局的影响进行概述,同时对未来行业发展趋势等进行前瞻性阐述。随后,本文以流媒体电影是否坚守电影本性与经典理论根基做出了论述。之后,本文重点以《罗马》为研究支点,探究经典流媒体电影的美感趋向;并透过《罗马》剖析流媒体语境下形成的电影视听特征与创作规律,进而对流媒体电影新的视听亮点、创作审美观念等进行归纳、评议和展望。

摘要：旅美国家穆家善先生的画作品大气浑然,用笔精炼具有极高的艺术水准。穆家善先生还有效地利用国画这一形式向海外传播了中华元明的精髓。

摘要：为满足不同抽象层次设计理性模型重构的多样性量化需求,在设计理性建模的基础上研究了设计理性知识粒度评价方法。通过辨析知识体特性分析影响设计理性模型粒度的组成因素,建立了粒度度量方法,实现了统一的评价体系,为不同粒度设计理性模型的转换、比较和优化提供了客观、量化的依据和目标。以压弯模具部分设计过程为例,验证了设计理性知识粒度评价方法对模型重构度量及指导的可行性与有效性。

摘要：Optimization techniques are being applied to solve the problems of surface interpolation, approximation, smooth joining and fairing, aiming at corresponding objective functions. This paper focuses on the construction of fair surface interpolating the given mesh of curved boundaries with G 2 adjustment at comers and G 1, G 2 smoothness between adjacent patches. Many papers on surface blending have been presented, but almost all of them are restricted to the discussion of Bezier patches, there are no good results for B-spline surface. This paper gives a solution to the B-spline surface, allowing the surface to degenerate at comer in and have different parameterization along the common boundary of two patches.

摘要：可持续发展已成为世界各国的共识。产品全生命设计是以提高产品服务系统可持续性为原则的先进设计方法论,是落实绿色制造战略的重要手段。针对产品全生命周期设计利益相关主体多、设计环节多、难度大风险高的问题,分析明确了跨组织协同必要性,辨析了不同主体可持续价值主张对协同设计的驱动作用;提出了基于“可持续价值-需求”-“技术要求”-“技术方案”域映射的产品生命周期设计方法框架,解决了面向可持续性的跨组织协同目标构建、设计冲突辨识、产品及其全生命周期过程(如工艺、服务)绿色设计实现等关键问题,并通过工程机械装备案例研究验证了可行性和有效性。

摘要：针对目前公路设计缺乏公路CAD系统深层次支持的现状,提出公路虚拟环境的概念,以提高公路CAD系统对设计支持的深度和层次。对公路虚拟环境中的自然环境建模算法进行了研究,分析了基于约束Delaunay三角形(CDT)算法建模存在的问题,提出了改进约束CDT算法,建立的边结构解决了建模过程中拓扑更新问题。建立了基于删除操作的多层次细节模型简化算法。测试结果表明,该算法具有建模快、健壮性等优点,适合公路虚拟模型的建立。

摘要：提出了产品全生命周期方案的生成方法,并从平衡用户、制造商和产品环境影响三方面的要求入手,提出了评价产品生命周期设计方案的评价基准.建立了以选出最优设计方案为目的评价基准和设计方案之间的层次结构关系.通过成对比较和综合评价选出最优方案.最后用一个实例说明了该方法的使用,灵敏度分析表明了该方法的“鲁棒性”.该方法对家电类产品的绿色设计具有指导意义.

摘要：为了进一步提升高速列车变流器在运行过程中的冷却性能,提高变流器设备舱的通风冷却效率,本文针对某型动车组牵引变流器通风性能进行了实车试验研究,通过在变流器进排风口位置布设传感器,监测高速列车运行过程中变流器设备舱进排风口位置处的进风风量、排风风量.对通风风量的结果和通风风量随列车运行状态的变化规律进行分析,并与变流器散热水温温升规律进行对比分析.分析发现当8车作为头车运行时,行车风方向与风机排风方向一致,促进排风,当1车作为头车运行时,行车风方向与风机排风方向相反,抑制排风.最大抑制风量占列车静置风机全速风量的1.6%.本文研究结果可为高速列车设备舱牵引变流器的设计选型及安装布置方式提供指导.

摘要：A study was conducted to analyze the deformation mechanism of strongly weathered quartz schist in the Daliangshan Tunnel,located in the western Transverse Mountain area.A large deformation problem was experienced during the tunnel *** mitigate this problem,a support system was designed incorporating negative Poisson ratio(NPR)anchor cables with negative Poisson ratio *** model experiments,field experiments,and numerical simulation experiments were conducted to investigate the compensation mechanical behavior of NPR anchor *** large deformations of soft rocks in the Daliangshan Tunnel are caused by a high ground stress,a high degree of joint fracture development,and a high degree of surrounding rock fragmentation.A compensation mechanics support system combining long and short NPR anchor cables was suggested to provide sufficient counter-support force(approximately 350 kN)for the surrounding rock inside the *** the NPR anchor cable support system with the original support system used in the Daliangshan tunnel showed that an NPR anchor cable support system,combining cables of 6.3 m and 10.3 m in length,effectively prevented convergence of surrounding rock deformation,and the integrated settlement convergence value remained below 300 *** study provides an effective scientific basis for resolving large deformation problems in deeply buried soft rocks in western transverse mountain areas.

摘要：回路热管技术作为一种新兴的高效、远距离传热技术,具有很大的发展卒间。本文针对电厂电除尘器内部大功率IGBT模块散热不畅的问题,设计了一种新型的回路热管,直接把高频电源柜内IGBT模块的热量远距离传递到高频电源柜外部并通过冷空气带走,不但降低了模块温度,而且大大降低了工人维护散热器的工作量。该回路热管已在华能德州电厂某机组上成功试运行,传热能力达到3 kW,对应的总传热温差仅为26.4℃,IGBT模块温度比原有方案降低了15℃。本文介绍了该回路热管的设计、实验室测试和现场测试等情况。