浅谈岱庄煤矿热电厂热工自动化系统的应用

岱庄煤矿热电厂热工自动化系统于2001年2月12日开始施工，于2001年7月2日竣工并投入使用，自投运以来，运行稳定，工作可靠，为岱庄煤矿热电厂的安全经济运行提供了可靠的保证。     

Enhanced user performance in an image gallery application with a mobile autostereoscopic touch display

In this study, we explored how stereoscopic depth affects performance and user experience in a mobile device with an autostereoscopic touch display. Participants conducted a visual search task with an image gallery application on three layouts with different depth ranges. The task completion times were recorded, and the participants were asked to rate their experiences. The results revealed that the image search times were facilitated by a mild depth effect and that too great a depth slowed search times and decreased user-experience ratings.     

基于PTS的视频流集群同步显示技术

针对集群大屏拼接显示系统各节点机独立解码、视频流显示不同步的问题,本文分析了集群拼接显示系统的特点,提出了利用PTS信息实现集群内各节点机同步显示视频流的机制,研究了组播接收模块、Ts流拆包模块、视频解码模块和同步控制模块和拼接屏显示模块等视频流同步显示实现技术．研究试验结果证明了基于PTS的视频流集群同步显示技术的有效性．     

基于STM32的步行者航位推算装置设计

基于便携性与实用性考虑,提出一种新的步行者航位推算装置设计。使用三维加速度计与电子罗盘集成芯片LSM303DLHC和陀螺仪集成芯片MPU3050对步行者的实时运动信息进行采集,采用具有ARM Cortex-M3内核的STM32F103RBT6单片机收集传感器数据并对数据进行航位推算处理,将步行者航迹信息显示于TFTLCD上。实验证明,该装置具有较高的推算精度,能满足实际应用需求。     

Visual experience for autostereoscopic 3D projection display

In order to investigate visual experience for watching the autostereoscopic three‐dimensional (3D) projection display, we conduct a subjective evaluation experiment by a questionnaire when viewing video clips. Factor analysis is adopted to classify the evaluation items for the perpetual constructs of visual experience. Then a mixed design with repeated measurement analysis of variance with dimension and display duration as factors is carried out on the evaluation data to check the factorial effects and interactions for statistical significance. The results of factor analysis extract five factors including visual comfort, image quality, distortion, naturalness, and presence, which can be used as comprehensive indicators to evaluate the autostereoscopic 3D projection display. The results of analysis of variance indicate that image quality, which is used to assess two‐dimensional contents, is no longer applicable. It is necessary to give consideration to depth when evaluating 3D visual experience. Although 3D scenes enhance the overall subjective performance such as naturalness and presence, the health issues and stereoscopic distortion related to the introduction of depth cannot be ignored.     

Effect of vibration on eye,head and helmet movements while wearing a helmet‐mounted display

Previous research has demonstrated a loss of helmet‐mounted display (HMD) legibility for users exposed to whole body vibration. A pair of human factors studies was conducted to evaluate the effect of whole body vibration on eye, head, and helmet movements for seated users of a HMD while conducting simple fixation and smooth pursuit tracking tasks. These experiments confirmed that vertical eye motion can be demonstrated, that is consistent with the human visual systems' response to the vestibular–ocular reflex (VOR). Helmet slippage was also shown to occur, which could exacerbate loss of display legibility. The largest amplitudes in eye movements were observed during exposure to sinusoidal vibration in the 4–6 Hz range, which is consistent with the frequencies that past research has associated with whole‐body resonance and the largest decrease in display legibility. Further, the measured eye movements appeared to be correlated with both the angular acceleration of the user's head and the angular slippage of the user's helmet. This research demonstrates that the loss of legibility while wearing HMDs likely results from a combination of VOR‐triggered eye movements and movement of the display. Future compensation algorithms should consider adjusting the display in response to both VOR‐triggered eye and HMD motion.     

Ribosome display of mammalian receptor domains

Many mammalian receptor domains, among them a large number of potential therapeutic target proteins, are highly aggregation-prone upon heterologous expression in bacteria. This severely limits functional studies of such receptor domains and also their engineering towards improved properties. One of these proteins is the Nogoreceptor, which plays a central role in mediating the inhibition of axon growth and functional recovery after injury of the adult mammalian central nervous system. We show here that the ligand binding domain of the Nogoreceptor folds to an active conformation in ternary ribosomal complexes, as formed in ribosome display. In these complexes the receptor is still connected, via a C-terminal tether, to the peptidyl tRNA in the ribosome and the mRNA also stays connected. The ribosome prevents aggregation of the protein, which aggregates as soon as the release from the ribosome is triggered. In contrast, no active receptor was observed in phage display, where aggregation appears to prevent incorporation of the protein into the phage coat. This strategy sets the stage for rapidly studying defined mutations of such aggregation-prone receptors in vitro and to improve their properties by in vitro evolution using the ribosome display technology.     

国内服装品牌在视觉营销中存在的问题

视觉营销是服装界近几年的热门话题,国内各服装品牌也进行了多方面的尝试．针对视觉营销在国内处于起步阶段,在实际操作中存在着许多的问题,分析了国内视觉营销现状,提出了在服装品牌视觉营销中应建立科学规范的视觉营销体系,完善的教育培训机构等应对错施．     

光栅光调制器周期结构的优化分析与实验

针对光栅光调制器的光学调制特点,建立一种可变周期结构的光栅光调制器模型,采用Matlab软件中的数字图像处理方法进行研究。利用傅里叶变换分析两种周期结构的光栅光调制器在频谱面和像面的光场分布,并得到不同周期结构对器件调制对比度的影响。实验得到了两种结构像面的光强输出对比。结果表明:不同周期结构对器件的亮态调制效果影响不大;当器件上下反射面中心对齐,下层反射面在器件周期方向两侧各超出上层光栅面的1/2倍光栅间隙宽度时,器件具有最佳的暗态调制效果,从而得到了光栅光调制器的一种周期结构优化方案。     

液晶显示器在特殊使用环境中的适应性设计

介绍了液晶及液晶显示器,从环境温度、湿度对液晶显示器正常工作所造成的影响进行分析,提出了低温加热、高温散热针对性解决方法。