Geo-Agents: Design and implement

Geo-Agents, a multi-agent system that processes distributed geospatial information and geospatial service was presented. Firstly, the requirement for distributed geographical information process was discussed, and the architecture of Geo-Agents was introduced. Then in-depth discussions were raised on agent system implementation, such as the basic agent, agent advertising, message passing and collaborating. An example was also given to explain the problem solving process.     

A multi-label classification algorithm based on label-specific features

Aiming at the problem of multi-label classification,a multi-label classification algorithm based on label-specific features is proposed in this paper.In this algorithm,we compute feature density on the positive and negative instances set of each class firstly and then select mk features of high density from the positive and negative instances set of each class,respectively;the intersection is taken as the label-specific features of the corresponding class.Finally,multi-label data are classified on the basis of label-specific features.The algorithm can show the label-specific features of each class.Experiments show that our proposed method,the MLSF algorithm,performs significantly better than the other state-of-the-art multi-label learning approaches.     

国产科幻电影中的国家形象建构与传播

近代以来,西方发达国家对我国存在的负面刻板印象亟待匡正,科幻题材电影既吻合西方受众对科学精神的推崇,又有通过适度淡化社会背景,表现人类共同命运、共通情感的优势,据此线索对电影进行深入研究,可以为我国国家形象的建构与传播,特别是跨文化传播,提供新的空间与可能.文章采用文本分析法,选取了几部在国家形象的建构与传播中具有代表性的电影样本,通过绘制格雷马斯方阵,对样本电影中国家形象的建构进行了分析,认为我国的科幻电影已初步实现了客观、真实的中国形象建构.未来国产科幻电影的创作应继续自觉承载国家形象建构与传播的历史使命,积极探求更多与世界对话的渠道,继续助力人类命运共同体的构建.     

低碳钢低温轧制工艺实验研究

在实验轧机上进行低碳钢的低温轧制实验,并利用力能参数模型对低碳钢低温轧制时轧机能力进行校核计算。实验结果表明,加热温度从1200℃降至1150℃时,低碳钢的微观组织都是铁素体和珠光体,晶粒直径减小了1.3μm;试样的屈服强度提高了9MPa,抗拉强度提高了6MPa,延伸率下降了1.5个百分点,力学性能仍符合标准要求。校核结果表明轧机设备能力能够满足低温轧制需要。     

浅谈幼儿心理与教学质量的关系

幼儿身体心理发展的特点、规律直接关系到教育教学质量的提高。教育工作者应重视幼儿发展所涉及的四个根本问题，对幼儿进行教育。     

磺化三聚氰胺甲醛树脂的合成工艺研究

详细讨论了影响磺化三聚氰胺甲醛脂减水率和稳定性的各个因素。结果表明，除摩经，工艺条件外，合成过程也是重要因素。     

连续重整预加氢处理系统余热利用改造

通过对连续重整车间预加氢处理系统的现有流程进行分析,设计了合理可行的改造方案,节能降耗效益明显。     

浅谈任务型教学在大学英语语法教学中的应用

英语语法的地位问题以及怎样进行英语语法教学,一直存在着争议,形成了鲜明的两派:一派是坚持用传统的教学方法;另一派采用淡化语法的教学方法,具有刻意回避语法教学的倾向。两派之争,在一定程度上使得大学英语语法教学无所适从,面临着困境。本文试图用任务型教学理论对这一问题进行分析、整合,做一点初步的探索。     

Mutations in IHH, encoding Indian hedgehog, cause brachydactyly type A-1.

Brachydactyly type A-1 (BDA-1; MIM 112500) is characterized by shortening or missing of the middle phalanges (Fig. 1a). It was first identified by Farabee in 1903 (ref. 2), is the first recorded example of a human anomaly with Mendelian autosomal-dominant inheritance and, as such, is cited in most genetic and biological textbooks. Here we show that mutations in IHH, which encodes Indian hedgehog, cause BDA-1. We have identified three heterozygous missense mutations in the region encoding the amino-terminal signaling domain in all affected members of three large, unrelated families. The three mutant amino acids, which are conserved across all vertebrates and invertebrates studied so far, are predicted to be adjacent on the surface of IHH.     

一种公交网络分配模型

提出了一种公交网络分配模型,该模型重点处理有转车的部分网络并在有转车发生的节点处考察乘客的路线选择行为.在此基础上,提出了公交网络分配原则及算法.