基于"HTML5+VR"微链接式的唐崇陵翁仲逆向设计实践

目的 通过根据代表性古代石器的三维数据信息进行逆向工程设计,探析古文化遗存在"VR+HTML5"微网页链接式的数字化呈现方法,使古文化遗存的活态呈现更具视觉文化的时代特色.方法 通过具体案例实践进行逆向工程设计说明.首先,分析了在逆向工程技术中对古遗存逆向设计的关键方法和技术,如三维数据扫描、点云画像处理、"HTML5+VR"参数化模型构建等;其次,使用三维扫描手段采集唐崇陵石翁仲的数据,对唐崇陵翁仲进行数字化逆向工程设计,在此过程中利用软件平台生成唐崇陵武官石翁仲的点云画像并细化模型;最后,利用智能终端HTML5网页微链接的虚拟现实在线开放平台,搭建唐崇陵翁仲石像的数字化视觉展示链接与传播途径,明晰HTML5微网页链接式的数据可视化与传播优势.结果 得到了唐崇陵石翁仲的数字化模型与虚拟现实在线开放平台展示链接.结论 该方法可为古文化遗存的数据存储及创新传播提供参考.     

论现代商业橱窗陈设设计的倾向

通过对商业橱窗陈设与门面的设计特征与倾向的研究,从橱窗陈设与门面的设计内涵等不同层面及其表现深度入手,对商业橱窗陈设与门面设计的创意、设计及方法进行深刻的分析与论述。论证了商业橱窗陈设与门面在深化主题的内涵性、传达现代科技感、善用灯饰设计的作用、表现当下时尚审美等设计方面的倾向。并指出商业橱窗陈设与门面设计应注意的几个方面,从而提倡科学严谨的规划与艺术审美。     

论舞台美术设计发展对我国服装表演的推动作用

在当今时尚界,服装表演的舞台设计越来越多的采用了高科技的元素,舞台美术设计对服装表演的舞台风格、T台设计、模特静态展示都起到了积极的推动作用,现代化的舞美设计不再受局限,而是为服装表演增光添彩,更全面的诠释着当今代言时尚艺术的服装表演。     

规则库的冗余测试

规则冗余会引起专家系统效率低下、增加维护代价等不利后果,在专家系统中,保持规则库的精练和简洁,避免规则冗余是规则库组织和管理中必须解决的首要问题。概述了冗余规则的分类,并利用这些规则通过算法对某农业专家系统进行测试,发现此知识库存在一定程度的冗余性,但事实证明要完全控制规则的冗余性是不可判定的。     

Technical note: Evaluation of a sonographic overbagging edema scoring system for show cows: Comparison with visual inspection

Overbagged udders are commonly seen at dairy cow shows due to prolonged milking intervals. The aims of this study were to describe the prevalence of udder edema in dairy cows at shows as determined by sonography and to suggest a sonographic scoring system, which was evaluated for reproducibility and repeatability. At 4 highly competitive Swiss dairy cow shows, 319 cows of various breeds were examined. Sonographic scans—1 from each fore quarter and 1 from the rear, representing both hind quarters—were collected by 3 experienced veterinarians at defined positions predisposed to overbagging edema. Sonographic scans were scored with the aid of a newly suggested scoring system (score 0 = no edema, grade 1 = slight edema, grade 2 = moderate edema, grade 3 = severe edema). Further, 139 video sequences from behind while the cows were walking and the same number of photographs of the udder each from the left, right, and behind were selected. The photographs and video sequences were visually scored for different parameters as 0 = not present or 1 = present except for abduction, which was scored on a visual analog scale (0 = no abduction; 100 = maximal imaginable abduction). Visual scores were then compared with the sonographic scoring (Pearson's chi-squared). The prevalence of udder edema scores 1, 2, and 3 was 14.0, 6.5, and 2.3%, respectively. Interobserver reliability for objective sonographic scoring (κ = 0.815) and intraobserver agreement (κ = 0.90 and 0.85 for 2 different observers) was estimated as “almost perfect.” Interobserver agreements for visual parameters were κ = 0.40 or less except for teat shape (κ = 0.52). Classification of the videos resulted in better interobserver agreement; when rating hind limb abduction, Spearman correlation coefficient was 0.61, whereas κ = 0.61 for absence of udder movement. Udder movement and teat shape were significantly associated with the edema score. The higher inter- and intraobserver reliability of the sonographic edema scoring compared with the visual scoring system indicates that the newly suggested scoring system might be used in the future to objectively identify udder edema in cows at dairy shows.     

气动脱气器优势分析及应用效果对比

脱气器作为气测录井的必需配套设备,其性能优劣直接决定气体检测分析效果,进而影响油气层的准确识别与解释评价结果。通过对脱气器的发展进行回顾,探讨各个发展阶段脱气器的优点与不足,并以现场实际应用数据及与邻井对比结果为依据,分析了气动脱气器的优势为：①与传统电动脱气器相比,其在可燃性气体含量较高的地区应用时,防爆安全性能更高;②气动脱气器的动力源由井场提供,可避免因电动脱气器电机损坏造成的录井资料的漏失;③气动压力可调节,可根据实际需要选择适合的气动压力,确保气测值在合理的区间,保证气测分析精度。因此,推荐采用半定量气动脱气器。     

谈商业插图设计中的展示与感染共鸣

展示与感染共鸣是商业插图设计中分别侧重于从理性和感性这两个不同的角度向受众传达商业信息的既相异对立又密切关联的一对表现手法。根据插图设计前提的不同,需选择或客观展现,或感染共鸣的不同手法来最大化地传达产品信息。展示手法较为客观、理性,能给人以中肯、可靠的感受;而感染共鸣则从渲染情感的角度,在传达产品性能的同时激发读者对产品浓厚的情感。只有选择得法、应用得当,才能有的放矢、贴切准确且高效地发挥插图在商业广告中举足轻重的作用。     

DAB的Slide Show业务在实时场合中的不足及改进

数字音频广播（DAB）标准的Slide show业务选用JPEG编解码技术是一种必然。但是,JPEG编解码技术中存在错误扩散现象。该文正是基于这一背景,结合DAB体制论证Slide Show业务在实时播放场合中存在的不足。最后,提出一种JPEG标准中DRI标记位的新的应用,在不会影响已上市的DAB产品的功能的同时,让新产品可以有效地改进此不足。     

基于虚拟网络计算的课件播放控制方法

多媒体教学作为集生动、直观和可视于一身的现代教学手段,已广泛应用于各个教育领域。本文分析总结了传统多媒体课件播放控制手段的不足,提出了基于虚拟网格计算的多媒体课件播放控制方法,以强化教学互动和改善教学效果。     

酯化法合成丁二酸二乙酯

以丁二酸和无水乙醇为原料,硫酸氢钠为催化剂合成丁二酸二乙酯,考察了影响收率的各种因素,确定了最佳反应条件为:丁二酸用量0.1mol时,无水乙醇与戊二酸的物质的量比为6.0,3.0g催化剂,25mL环己烷作带水剂,反应时间2.0h,收率达85.09%,结果表明,硫酸氢钠是合成丁二酸二乙酯的优良催化剂。