科技期刊编排规范的编制及实施体会——以《环境工程学报》为例

为进一步有效地执行国家标准和规定,提高科技期刊整体质量和工作效率,扩大期刊的影响力,编制并实施科技期刊编排规范(企业标准)是有效手段之一.以《环境工程学报》为例,阐明科技期刊编排规范的编制原则;简明列出期刊编排规范的编制步骤;详细介绍期刊编排规范的基本内容和主要内容.结果表明:期刊编排规范的编制有利于编辑、作者更好地理解和实施国家标准和规范;利于期刊稿件体例格式的统一,提升期刊品牌形象;利于提高期刊编校质量和工作效率;利于增强编辑部团队的凝聚力并提高编辑部的整体水平和实力.科技期刊编排规范的编制和实施为提高期刊整体水平打下了坚实的基础.     

习题课在工程力学教学中的应用

习题课是工程力学教学中不可缺少的一种授课形式,通过练习和问答,巩固和拓宽知识面,增强解题能力,本文总结了一套上好工程力学习题课的方法。     

《工程制图》课的课堂板书要求

<工程制图>因为其对准确性、规范性的要求,教师课堂板书必须既能体现学科特点,又能适应学生认知的要求.     

Distributed sensor fault diagnosis for a formation of multi-vehicle systems

In the paper, a distributed sensor fault detection and isolation scheme is presented for a network of second-order integrators. A new distributed control law is developed to achieve formation of the system. By using the integration information of distributed formation errors, the control law improves the robustness of the formation. A distributed observer is then designed in each vehicle based on the closed-loop dynamic model of the vehicle. Each vehicle updates the states of the distributed observer by employing the measurements of itself and the transmitted state estimations from its neighbors. Based on the distributed observer, a distributed fault detection observer and a distributed fault isolation observer are designed. The presented distributed fault detection observer in each vehicle is able to be sensitive to the faults of all vehicles in the system. By using the distributed fault isolation observers, each vehicle is able to be sensitive to the faults of itself, its neighbors and its neighbors’ neighbors and to be robust to the faults of other vehicles. Although the fault isolation of the proposed scheme is simple, computation loads of the scheme are lower than the current ones since only the model of the individual vehicle is used. Finally, the effectiveness of the control law and the fault diagnosis scheme is demonstrated by simulations and real-time experiments carried out based on a formation of three quadrotors.     

Event-triggered decentralized output-feedback control for interconnected nonlinear systems with input quantization

In this paper, the event-triggered decentralized control problem for interconnected nonlinear systems with input quantization is investigated. A state observer is constructed to estimate the unmeasurable states, and the state-dependent interconnections are accommodated by presenting some smooth functions. Then by employing backstepping technique and neural networks (NNs) approximation capability, a novel decentralized output feedback control strategy and an event-triggered mechanism are designed simultaneously. It is proved through Lyapunov theory that the closed-loop system is stable and the tracking property of all subsystems is guaranteed. Finally, the effectiveness of the proposed scheme is illustrated by an example.     

Auxiliary model based recursive generalized least squares identification algorithm for multivariate output-error autoregressive systems using the decomposition technique

This paper focuses on the parameter estimation problem of multivariate output-error autoregressive systems. Based on the decomposition technique and the auxiliary model identification idea, we derive a decomposition based auxiliary model recursive generalized least squares algorithm. The key is to divide the system into two fictitious subsystems, the one including a parameter vector and the other including a parameter matrix, and to estimate the two subsystems using the recursive least squares method, respectively. Compared with the auxiliary model based recursive generalized least squares algorithm, the proposed algorithm has less computational burden. Finally, an illustrative example is provided to verify the effectiveness of the proposed algorithms.     

基于大数据的工程项目目标控制平台设计研究

从系统分析设计的角度对大数据环境下工程项目目标控制平台的核心架构与大数据应用框架等问题展开研究,通过在数据处理层识别项目风险因素、分析处理项目数据,构建大数据在项目进度、质量、成本三方面的目标控制平台。基于大数据的工程项目目标控制平台能够有效地对进度延迟、质量隐患及成本超额等问题进行预警,为项目管理人员提供决策支持分析,进而合理实现项目基本目标。     

开放式应用型软件工程人才培养模式创新

本文论述了开放式应用型软件工程人才培养体系的构建,并应用于实践,取得了良好的成效。     

一种工程机械液力传动油的研制

针对工程机械的液力变矩器在低温条件下顺利起动及正常工作,通过采用加氢基础油、中性油和合成烃复合作为基础油,配以具有剪切稳定指数好、良好低温性能的各种添加剂,研制出具有闪点高、倾点低、粘度指数高等优良性能的工程机械液力传动油。其综合性能优于进口产品,其宽使用温度范围尤其突出。     

新工科背景下高校“土木工程材料”课程教学改革——与化学工程与工艺专业课程融合

在新工科建设背景下,土木工程专业亟待从学习目标、培养方案、教学模式等方面持续改进,加快培养出符合新工科要求和社会需要的专业人才。基于高校现有教学体系,针对高校开设的“土木工程材料”课程,本次教学改革将“土木工程材料”课程、化学工程与工艺专业理论知识进行融合教学,对该课程教学方法做出相应的探索和改进,进而提出将化学工程与工艺专业课程和土木工程材料课程进行融合教学的策略。改进后的教学方法,可为高校其他工科课程教学改革提供参考。