因子分析法和熵值法在高校科技创新评价中的应用

在已有研究的基础上总结出了一套科学合理并具有可行性的高校科技创新评价指标体系,并把因子分析法和熵值法应用于高校科技创新评价.首先对高校科技创新评价体系的5个一级指标分别进行因子分析,然后运用熵值法对其确定权重.分析结果表明两种方法的结合使用能够简化分析对象的结构,使评价结果更具科学性、客观性.     

陶瓷原料中二氧化硅分析方法的对比与选择

本文综合各种文献 ,对陶瓷原料中SiO2 的各种分析方法的优缺点 ,使用条件 ,应用侧重点进行了比较与评述     

分离技术的进展

本文概述了基于生物技术的发展、超纯材料的制备等对发展分离科学和技术的需求,特别是从大量基体物或稀溶液中提取、分离、纯化和检测低含量物质要求发展高选择性的分离技术和相应的分离体系。在发展和完善原有分离技术(如萃取、离子交换、吸附、吸收等)的同时,超临界萃取和膜分离技术具有引入的应用前景。还应注意两种或多种分离技术相结合的分离方法和技术的研究。     

智能化建筑中的计算机科学与技术应用

智能化建筑包含建筑的自动化系统、火灾防控报警系统和通信连接系统。计算机科学与技术应用在建筑中的应用展现建筑的现代化、经济化的要求。本文简单阐述了计算机科学技术应用下智能化建筑的建设理念,充分表现科技在智能化建筑中的管理、维护和系统监控应用。     

Reprint of “Suppressing propylene carbonate decomposition by coating graphite electrode foil with silver”

A method has been developed to suppress the decomposition of propylene carbonate (PC) by coating graphite electrode foil with a layer of silver. Results from electrochemical impedance measurements show that the Ag-coated graphite electrode presents lower charge transfer resistance and faster diffusion of lithium ions in comparison with the virginal one. Cyclic voltammograms and discharge-charge measurements suggest that the decomposition of propylene carbonate and co-intercalation of solvated lithium ions are prevented, and lithium ions can reversibly intercalate into and deintercalate from the Ag-coated graphite electrode. These results indicate that Ag-coating is a good way to improve the electrochemical performance of graphitic carbon in PC-based electrolyte solutions.     

基于深度学习的集群式供应链应急物资需求预测研究

在突发事件和大数据情景下,建立基于数据流模糊C均值聚类算法的集群式供应链应急物资需求重要度决策算法,有助于辨识集群式供应链子系统应急物资需求的重要程度。针对集群式供应链中各子供应链之间的耦合特性和预测指标的快速变化数据流特征,提出基于长短期记忆网络的集群式供应链应急物资需求动态预测算法,提取集群式供应链多个子系统应急物资需求参数的时序特征,动态地、分布地对互联大系统的应急物资需求不确定性进行系统辨识估计。仿真实验结果表明了基于长短期记忆网络的集群式供应链互联大系统应急物资需求动态预测算法的可行性和精确性。     

西部地方应用型高校计算机专业建设的问题与路径#br#

针对教育部2021 年工作要点中“加快振兴中西部高等教育,增强推动中西部高质量发展的服务能力”,对六盘水师范学院计算机科学与技术专业三届毕业生进行调查。调查结果显示,毕业生就业率较高但就业岗位的专业层次和薪资水平较低,职业处境满意度不高。针对存在的问题,采取建设高水平师资队伍、创新人才培养模式、双创教育融入专业教育、强化课程教学方式改革、落实教学质量保障体系、不断推进专业思政建设等措施加以改进。     

电子信息科技英语的教学实践

为培养复合型人才,科技英语教学的重要性日益显现。分析了目前电子信息类专业中科技英语教学存在的问题,并围绕教学内容改革、教学过程管理等介绍了该课程的教学实践。同时,本文还指出未来科技英语教学的发展趋势。     

A free space frequency‐time‐domain technique for electromagnetic characterization of materials using reflection‐based measurement

In this report, a free space frequency‐time‐domain technique is presented for characterizing the electrical properties and thickness of the sample using multiple reflections and fabry‐perot resonance phenomenon. The retrieval of constitutive electromagnetic parameters of the sample has been carried out by comparing the measured reflection coefficient data from the sample at two different incident angles. The relative permittivity as well as relative permeability along with the thickness of different samples viz., beryllia, silicon, and plexiglass have been evaluated with high accuracy in the frequency range 1 to 15 GHz. The method is also experimentally validated by successfully reconstructing the unknown material properties of two different samples. The unique advantage of this method lies in non‐requirement of any prior knowledge of the sample's thickness for measuring the complex relative dielectric constant as well as relative permeability of the sample. To determine the electromagnetic properties of the sample, the sole knowledge of reflection coefficient data are needed. Moreover, the method does not involve any additional measurement for the reference calibration. The simple, cost‐effective proposed scheme is quite useful in many applications like accurate determination of signal strength in indoor wireless communication, through wall imaging, food industry, and so on.     

应用型本科高校计算机专业课程建设的探究与分析

当前,应用型高校计算机专业的学生培养始终存在着课程标准不明确、课程设置失衡、知识和职业技能脱节、实践环节薄弱等问题,教育部在2019年也明确提出课程建设质量需要全面提高,课程是人才培养的核心要素,课程质量直接决定人才培养的质量。全国本科教育必须深化教育改革,必须把教学改革成果落实到课程建设上。