Optimal depth recovery using image guided TGV with depth confidence for high-quality view synthesis

This paper presents a new depth image recovery method for RGB-D sensors giving a complete, sharp, and accurate object shape from a noisy boundary depth map. The proposed method uses the image guided Total Generalized Variation (TGV) with the depth confidence. A new directional hole filling method of view synthesis is also investigated to produce natural texture in hole regions whereas reducing blurring effect and preventing distortion. Thus, a high-quality image view can be achieved. Experimental results show that the proposed method yields higher quality recovered depth maps and synthesized image views than other previous methods.     

动密封失效与新型密封理论初探

文章通过对往复运动副动密封中油膜润滑与密封模型的剖析，建立起往复运动动密封中运动力学参数、材料性能参数及其相互之间内在的联系和规律针对高水基流体动力系统的特殊性，探讨了在高水基流体动力系统往复运动副动密封中新的润滑手段与密封理论，并应用流变复合密封材料使这一问题得到成功地解决。     

Study on Design Techniques of a Long Life Hot Forging Die with Multi-Materials

A new design technique for the long life hot forging die has been proposed. By finite element analysis, the reason for the failure of hot forging die was analyzed and it was concluded that thermal stress is the main reason for the failure of hot forging die. Based on this conclusion, the whole hot forging die was divided into the substrate part and the heat-resistant part according to the thermal stress distribution. Moreover, the heat-resistant part was further subdivided into more zones and the material of each zone was reasonably selected to ensure that the hot forging die can work in an elastic state. When compared with the existing techniques, this design can greatly increase the service life because the use of multi-materials can alleviate the thermal stress in hot forging die.     

铁铝红颜料的研制与生产探讨

铁铝红是一种发色鲜艳、生产稳定、价格低廉的颜料，为提高该颜料在基础釉中的适应性，文章通过对比实验数据分析，对颜料的配方和生产方法进行了探讨，并提出了实际性的生产方案。     

Tribological Behavior of Aluminum Alloys Implanted with Nitrogen,Titanium Then Acetylene

The composition depth profiles, structure and ball-on-disk frictional characteristics of aluminum alloys 2024 plasma-based ion implanted with nitrogen, titanium and nitrogen then acetylene were investigated. The layers implanted with nitrogen then with nitrogen and titanium and finally with acetylene included three zones: a top DLC (diamond-like carbon) zone, a C, Ti and N coexisting intermediate zone which undergoes chemical changes forming TiC, Ti(C,N), TiN, (Ti, Al)N and AlN second phases, and the bottom zone of the substrate. The micro-hardness and nano-hardness of these layers are HK7.8 GPa and 22 GPa, respectively. The layers showed lower friction coefficient and higher wear resistance. The Raman spectra for worn tracks after sliding for different numbers of cycles showed that when the loading was 1 N after sliding 10,000 cycles, a slight graphitization phenomenon of the DLC film is found. If the loading was 20 N, the graphitization phenomenon of the DLC film is more obvious after sliding 2000 cycles. The SEM morphologies of the wear tracks showed that when the load was 1 N, after sliding 7200 cycles the wear is from rubbing and abrasive wear. When the load was 20 N, after sliding 2000 cycles, delamination wear is dominant.     

氨基磺酸系高性能减水剂的合成与性能分析

根据分子结构设计思想,通过改变原材料克分子比和加料方法,溶液浓度和酸碱度等工艺参数,进行合成氨基磺酸系减水剂的工艺试验。结果表明,氨基磺酸系减水剂的综合性能可以达到最佳,即同时具有高效减水、增强作用和控制混凝土坍落度损失的功能,是理想的高性能减水剂。     

跨校教学在建筑系研究生班设计课程中的应用

本文提倡以人的终身教育为目标的教育思想;结合香港社会和经济特点,介绍了以课题为核心和以网站为基础的高等 教育改革的思想。最后介绍了香港大学建筑系研究生一年级与清华大学和柏林艺术大学的一项合作设计。     

案例推理在认知引擎中的应用

遗传算法可用于认知引擎中传输参数的优化,但随着认知用户数的增加,遗传算法染色体增长,导致算法收敛时间过长,难以满足认知无线电实时通信的需求．以现有认知引擎为基础提出一种新型的认知引擎架构,并将案例推理融入遗传算法中,利用案例推理寻找匹配案例,为遗传算法提供初始种群,减小遗传算法选择初始种群的盲目性．仿真分析结果表明,与仅采用遗传算法的认知引擎相比,融合案例推理的遗传算法构造的认知引擎收敛速度和处理能力有显著提高,效用函数值也有一定增强．     

TACR压力管与排管间辐射换热分析

辐射换热是钍基先进CANDU型反应堆(TACR)压力管和排管间换热的主要途径.本文以灰体辐射模型和电网络分析方法为基础建立了TACR压力管和排管间辐射换热的计算模型,利用该模型计算了给定温度边界和热流密度边界的情况下,压力管和排管间的辐射换热能力.计算结果表明,该模型可以用于TACR压力管和排管间辐射换热能力的计算.     

Bauxite Based Refractory Bricks for Hot Blast Stove YB/T 5016-2000

1Scope This standard specifies the technical requirements, test method, inspection rules, packing, marking, transportation, storage and quality certificate of bauxite based refractory bricks for hot blast stove.