纳米TiO2处理的聚丙烯酸盐及其混合浆液的研究

研究了纳米TiO2加入到聚丙烯酸盐浆液后浆液黏度的变化。测试结果表明,加入纳米材料后,聚丙烯酸盐浆液及混合浆液的黏度降低,稳定性增强;改性后的浆液对纯棉纱的黏附力有所提高,混合浆液的综合性能得到改善。     

Adaptive Maxwell's Equations Derived Optimization and Its Application in Antenna Array Synthesis

In this paper,a self-adaptive method for the Maxwell's Equations Derived Optimization (MEDO) is proposed.It is implemented by applying the Sequential Model-Base...     

区域电网调度系统中维护信息对称性特征识别

为提升对区域电网调度系统维护信息对称性特征的识别效率及准确率,文中首先通过小波变换方法提取区域电网调度系统中维护信息的特征,然后运用模糊C均值算法分析特征数据的分布情况,并以此为基础,获取维护信息对称性故障特征的波形,根据Ucosθ波形特征识别结果,实现对区域电网调度系统中维护信息对称性特征的识别.实验结果表明:在不同...     

基于ASP模式的汽车行业公共服务平台的研究

介绍基于ASP模式的汽车行业公共服务平台的结构及其现实意义,并探讨平台两种关键技术,即授权机制和基于XML的数据集成.     

大型公路桥梁施工监理探讨

根据广深高速公路等施工实践经验,对公路桥梁水下混凝土灌注桩、主体钢筋混凝土、后张法预应力箱梁制作、桥梁架设的施工与监理过程中控制关键点进行探讨,以期加强施工与监理的工作质量。     

Strengthening and toughening mechanism of a Cu-bearing high-strength low-alloy steel with refined tempered martensite/bainite (M/B) matrix and minor inter-critical ferrite

The microstructure–mechanical property relationship of a Cu-bearing low-carbon high-strength low-alloy steel, subjected to a novel multistage heat treatment inc...     

Flash memory based computing-in-memory system to solve partial differential equations

Dear editor, Many emerging non-volatile memories (NVM),such as re-sistive random access memory (RRAM)[1],phase-change memory (PCM)[2],and ferroelectric RAM (FeR...     

Construction and application of formal ontology for mine

Digital mine is the only way for the development of mining industry in China. Due to lack of appropriate standards and norms, and different awareness in the field of digital mine among academia and industry insiders, the meaning for digital mine is still unclear. Starting from the nature of mining and removing of views of specialized fields, this paper constructs formal ontology for digital mine and proposes the four levels for it. The ontology clarifies the concept world for digital mine, defines the meaning of concepts and relations clearly, provides a reference for the standard construction for digital mine and provides a unified semantic framework for the integration of heterogeneous mine data. Meanwhile, it can provide formal reasoning knowledge for expert system of digital mine and improve the intelligence and automation while the machine automatically interpreting and processing mine spatial data.     

检定S型短型热电偶的4种不同冷端补偿方法之比较

检定长度在200～700 mm范围内的S型热电偶时,由于参考端温度大都处于室温或者波动的温场之中,需要将参考端温度恒定在0℃或采取修正、补偿等措施进行修正。现采取检定中最常用的4种不同的冷端补偿方法检定同一支S型短型热电偶,对结果进行比较分析,得到这4种不同的冷端补偿方法的优劣性及其准确度排序。结果表明,将参考端应用达到一等标准热电偶准确度水平的同极性热电偶丝延伸至参考端恒温器方法能获得较为理想的补偿效果。     

初中物理习题解决的数据驱动加工方式

通过分析认知加工理论的发展历程,认为物理习题解决属于数据驱动加工,而物理问题解决属于概念驱动加工.结合初中物理习题的解决,阐述了数据驱动加工的原理、分类及解题过程.