Semantic driven design reuse for 3D scene modeling

The increasing scale and complexity of 3D scene design work urge an efficient way to understand the design in multi-disciplinary team and exploit the experiences and underlying knowledge in previous works for reuse. However the previous researches lack of concerning on relationship maintaining and design reuse in knowledge level. We propose a novel semantic driven design reuse system, including a property computation algorithm that enables our system to compute the properties while modeling process to maintain the semantic consistency, and a vertex statics based algorithm that enables the system to recognize scene design pattern as universal semantic model for the same type of scenes. With the universal semantic model, the system conducts the modeling process of future design works by suggestions and constraints on operation. The proposed framework empowers the reuse of 3D scene design on both model level and knowledge level.     

Web-based biomedical literature mining

With an upsurge in biomedical literature, using data-mining method to search new knowledge from literature has drawing more attention of scholars. In this study, taking the mining of non-coding gene literature from the network database of PubMed as an example, we first preprocessed the abstract data, next applied the term occurrence frequency (TF) and inverse document frequency (IDF) (TF-IDF) method to select features, and then established a biomedical literature data-mining model based on Bayesian algorithm. Finally, we assessed the model through area under the receiver operating characteristic curve (AUC), accuracy, specificity, sensitivity, precision rate and recall rate. When 1 000 features are selected, AUC, specificity, sensitivity, accuracy rate, precision rate and recall rate are 0.868 3, 84.63%, 89.02%, 86.83%, 89.02% and 98.14%, respectively. These results indicate that our method can identify the targeted literature related to a particular topic effectively.     

Design consideration of a super-high speed high temperature superconductor maglev evacuated tube transport （I）

The super-high speed high temperature superconductor (HTS) maglev evacuated tube transport (ETT) is a promising transport mode for the future.As a key component of the HTS maglev vehicle,the permanent ...     

路基压实质量连续同步检测可行性试验研究

目前路基压实质量检测的方法存在诸多不足,提出了以振动轮动力响应为基础的连续测试路基压实状态的检测方法,并在中铁一局哈大客运专线路基上进行了对比试验研究,验证了连续压实质量控制指标δCMV与目前客运专线路基压实质量力学检测指标K30、EV2具有很好的相关性。表明在获得更多的试验数据后,可以考虑采用连续压实质量控制指标对路基压实施工进行过程控制,减少目前的检测工作量。     

混凝土的施工温度与裂缝的分析

通过多年的现场观察,通过查阅有关混凝土内部应力方面的专著,对混凝土温度裂缝产生的原因、现场混凝土温度的控制和预防裂缝的措施进行等进行阐述。     

中国文化思想与中国画色彩之嬗变

绘画是文化的一种精神符号。中国画源远流长,它以丰富多彩的绘画手法和色彩画面折射着中华民族悠久灿烂的发展历程。中国画色彩的运用曾经历了从绚烂至极到质朴平淡的变换,这种绘画色彩运用风格的变换,是两种中国传统主流文化思想互动的结果。文章从文化学的角度,探讨了中国文化思想对中国绘画色彩发展的影响,及促使中国画色彩变化的文化诱因。     

西南地区公路桥梁山洪灾害破坏机理研究

针对西南山区公路桥梁的特殊气候条件和自然环境,分析山洪对公路桥梁的破坏机理,遵循结构力与山洪破坏力之间力的平衡与稳定原理,对桥梁在山洪作用下的破坏力进行理论推导,获得山洪破坏力公式的相关参数及有关规律性的结论,对公路桥梁抗洪措施具有指导性意义。     

船舶水压场畸变试验

舰船航行时在其下方附近产生水压场。这种水压场无法消除，也极难人工模拟。水压水雷就是根据航行舰船的水压场特性而引爆的。从舰船的安全防护角度考虑，可在船体底部加装某种附体，使舰船原有水压场发生改变，从而避免引爆水压水雷。对在船底加装翼板、回转体等附体所造成的舰船水压场畸变进行了试验研究和数值计算。在拖曳水池中进行了船模水压场测量，比较了加装附体前后舰船水压场的特性，据此分析了采用舰船水压场畸变方法防御水压水雷的可行性。比较了加装翼板和回转体的防水压水雷效果。分析了在实船下加装翼板防水压水雷的可能性。     

第三方物流保险现状及发展对策

随着现代物流业的兴起,第三方物流企业为客户提供越来越便利的一体化物流服务的同时,也承担着越来越大的风险,随时可能发生的货物破损、野蛮装卸、误时配送、偷盗灭失、变质串味等风险都可能导致托运方提出索赔。因此第三方物流业的发展迫切要求保险业提供支持,把经营过程中涉及的赔偿风险转移至保险公司,从而将企业风险降到最低限度。     

船运散装液体化学品溢漏应急地理信息系统的研究

为了有效地减少船运散装液体化学品溢漏事故导致人身伤亡与环境污染，将目前方兴未艾的地理信息系统应用在船运散装液体化学品溢漏事故上，利用Mapinfo自带的二次开发工具MapBasic对船运散装液体化学品溢漏应急地理信息系统做开发研究，取得了实质性的进展。重点介绍了系统的实际开发创建过程（包括数学模型建立，数据库建立与管理，编程语言及其关键技术）以及系统所能实现的功能。希望能为国内外同行的研究提供参考。