1Cr17Ni2 钢锻造工艺试验

通过对１Ｃｒ１７Ｎｉ２钢锻造工艺试验，掌握了锻件成形后的组织和力学性能，找出了锻件形成过程中使锻件各质点处于最佳应力状态的锻造工艺方法，避免锻造裂纹     

基于Aspen Plus的燃煤电厂CO_2捕集系统模拟分析

针对乙醇胺溶液(MEA)化学吸收法在实际应用中能耗高的问题,在分析传统MEA法CO_2捕集工艺基础上,提出由菲涅尔式太阳能热泵和燃煤机组烟气余热共同提供再生热量的CO_2捕集技术。利用Aspen Plus软件对新型MEA法CO_2捕集技术模拟分析,获得具有代表性的预测结果。结果表明新型MEA法CO_2捕集工艺可节约63.80%的热能,新型CO_2捕集系统再生塔内的温度分布曲线更为平滑,更有利于CO_2快速分离。     

Extracting TSK-type Neuro-Fuzzy model using the Hunting search algorithm

This paper proposes a Takagi-Sugeno-Kang (TSK) type Neuro-Fuzzy model tuned by a novel metaheuristic optimization algorithm called Hunting Search (HuS). The HuS algorithm is derived based on a model of group hunting of animals such as lions, wolves, and dolphins when looking for a prey. In this study, the structure and parameters of the fuzzy model are encoded into a particle. Thus, the optimal structure and parameters are achieved simultaneously. The proposed method was demonstrated through modeling and control problems, and the results have been compared with other optimization techniques. The comparisons indicate that the proposed method represents a powerful search approach and an effective optimization technique as it can extract the accurate TSK fuzzy model with an appropriate number of rules.     

Economic analysis of two processes for biodiesel production

In this study, two continuous processes for biodiesel production, alkali catalyzed process and solid acid catalyzed process, are discussed with the help of Aspen Plus. By comparing some economic indicators, it can be found that solid acid catalysis could be a good choice for investors in the near future.     

“微时代”的大学生思想政治教育创新研究

随着网络的迅速普及,各种各样的网络交流平台不断涌现,给人们及时交流提供了很大便利,而以微博为代表的微媒体就是这样网络化了的交流平台。微博等微媒体的快速发展已经成为网上信息传播、交流的不可忽视的力量,不仅成为人们之间信息共享的重要交际工具,同时对在校大学生的日常生活学习、思想、价值观等都产生着深刻影响。本文拟在探讨"微时代"下微博等微媒体对大学生思想政治教育带来的挑战和机遇的基础上,研究"微时代"下大学生思想政治教育的创新,以期为今后我国大学生思想政治教育的进一步提高提供一点有益借鉴。     

FUZZIFYING THE “PRECISE”

Based on the fuzzy-integral model, methods and algorithms are developed for identifying the “input–output” operator of continuous and stationary discrete extremal fuzzy dynamic systems (EFDS). The EFDS “input–output” operator is restored by means of experimental data with possibilistic uncertainty, the source of which is extremal fuzzy time intervals. The regularization conditions for obtaining quasi-optimal estimates are substantiated by the proved theorems. The corresponding algorithms are provided. The results obtained are illustrated by examples in the case of a finite set of EFDS states.     

PBL教学模式在“软件工程”课程教学中的应用

由于学科特性与教学要求,“软件工程”课程教学对实践性和系统性的要求极高。PBL教学模式作为一种自主式教学的新型模式,在教育领域受到广泛关注。文章基于PBL教学模式的特点及优势,结合“软件工程”课程教学改革趋势及教学实践中面临的主要困境,系统分析了PBL教学模式应用于“软件工程”课程教学的途径,以期为促进“软件工程”的课程教学改革及教学质量提高提供参考及借鉴。     

动态规划管理机制下的公共设施调查与思考

研究以广州规划系统“一张图”统一平台实现公共设施信息化管理的实践为例，探讨了信息化、动态化规划管理机制下公共设施整合调查的若干关键性问题，包括工作目标、机制、内容、组织和方法等，并基于 GIS 分析方法，列举了调查成果的空间特征分析的应用案例。研究总结了公共设施调查工作的创新点，以期为国内同类工作提供有益借鉴。     

智能可视化优化技术用于常压塔多目标操作优化

应用Aspen Plus流程模拟软件,对某炼油厂的原油常减压蒸馏装置中常压塔进行准确模拟.在此基础上,选取常底蒸汽量、侧线采出量、中段回流量等8个操作变量,在其值域范围内,通过计算机模拟实验,获得了满足常压塔约束条件的样本数据.以产值最大化和能耗最小化为优化目标,应用智能可视化优化技术将这些样本数据降维映射到二维平面,生成产值与能耗的等值线.根据数据点和等值线的降维映射图,确定出能耗小、产值高的优化区域和优化操作点.对比原工况点,优化操作点的常压塔产值提高了1.42％、能耗降低了4.7％,智能可视化优化技术为常压塔的多目标操作优化提供了一种有效的手段.