需求侧管理中面向居民用电的互动化评价模型

智能用电的核心是通过电网与用户的双向互动以实现需求响应,文中提出了一种面向需求侧管理的居民用电互动化评价模型及其实现方法。首先构建居民用电互动化评价模型,模型涵盖需求侧管理中的负荷优化、用户需求响应和通道理想解排序法(TOPSIS)互动化评价在内的完整过程。然后在多目标遗传算法求解最优用电策略和价格弹性指数计算用户需求响应策略基础上,阐述模型的实现方法。最后通过实验验证了模型评价居民用电互动化效果的有效性。     

Comparative study of load distribution ratio of various piled raft foundations based on coupled stiffness matrix

Load distribution ratio of piled raft foundation was investigated based on an interactive foundation analytical method that considers the coupling effect between the stiffness of the superstructure, the piled raft, and the soil. Series of numerical analysis was performed to verify the proposed analytical routine in comparison with various methods and field measurements. Through the comparative studies between various piled rafts with different aspects, it was found that the proposed analytical method derived accurate results in structural response compared with actual field data, in settlement, load distribution ratio, and raft bending moment. And it was also found that the proposed analytical method was capable of considering interaction between superstructure and foundation in predicting the behavior of building structures. As a result, it was found that in most cases, the pile in the piled raft foundation supports a majority portion of the structural load. However, for cases where the length of the pile was short and acts as a short column, the load distribution ratio between raft and pile may be overturned and shows significantly different behavior and load distribution ratio.     

千米深井多绳摩擦提升机首绳更换工艺

孔庄煤矿混合井口空间小、井筒较深并且钢丝绳质量较重,给换绳工作带来很多困难。通过对千米混合立井首绳更换工艺的研究以及新技术装备的应用,探索出了一条安全、快捷、高效的深井摩擦提升首绳更换工艺。利用该工艺安全、高效地完成了千米深井提升钢丝绳的更换工作。     

架空配电线路可视化信息管理系统的设计与开发

针对传统的架空配电线路信息管理方法的缺陷,利用3ds Max、VB和Access 2003数据库,基于科学、系统、可视化的管理理念,开发了架空配电线路信息管理系统。该信息管理系统根据功能需求划分为用户管理、系统查询、图像显示、文本显示、信息添加五个功能子模块,采用3ds Max制作三维可视化模型和二维三视图,用Access设计数据库,用VB制作界面、编写函数、过程和全局变量,可为管理者提供方便直观的服务和交互式操作,提高了架空配电线路运行单位的管理水平。     

矿井三维通风立体图自动绘制软件的研制

在通风系统双线图的基础上,提出了巷道位置参数的交互采集和三维巷道模型的快速建模方法,着重分析了三维通风立体图自动绘制的原理及利用基于C#的AutoCAD二次开发技术实现模块功能的具体流程,并在此基础上进行了开发实现和实践应用。     

煤矿生产调度管理系统中的多媒体网络技术

文章阐述了煤矿安全生产多媒体网络调度管理系统路线和方法的建立,及其运用的计算机、多媒体和互联网技术,实现煤矿安全生产监测。     

东西部地区科技创新效率比较及互动机制研究

运用数据包络分析（data envelopment analysis,DEA）方法对东西部科技创新能力进行评价,对科技创新能力存在的差异进行分析,研究发现：西部地区知识生产过程配置效率较高,而东部地区在商业成果产出方面配置效率更高。同时对东西部科技创新过程中存在的问题进行分析,为科技创新互动机制的建立提供了政策建议。认为东西部地区应致力于建立有效的知识联盟和科技创新产业技术联盟,在建立科技创新互动机制的过程中,应解决的主要问题有：依据资源禀赋明确科技创新互动的动机;明确科技创新互动的利益分成标准;政府应在金融服务、互动创新的中介服务等方面持续地为产学研创新互动提供政策支持。     

基于Eon Studio的机械臂运动仿真

为了实现虚拟现实环境下机械臂的交互运动仿真,通过对机械臂各关节节点运动路径的计算,数学模型与数字模型的建立,完成了基于Eon Studio平台下对三自由度机械臂实时交互仿真的研究,并进行了机械臂运动路径的虚拟仿真实验,为基于Eon环境下多自由度、多通道输入多感知的机械运动虚拟交互仿真的研究提供一定理论基础。     

Isothermal and Dynamic Microcalorimetry for Quantifying the Crystallization of an Amorphous Drug during Interactive Powder Mixing

ABSTRACT

This study reports the crystallization of amorphous nifedipine during an interactive mixing process quantified by using isothermal and dynamic microcalorimetry. Interactive mixtures of amorphous nifedipine and uniform glass beads were prepared by mixing in a Turbula® mixer. The difference in the extent of crystallization of amorphous nifedipine during mixing was characterized by the time it took for the crystallization of a known amount of amorphous nifedipine in isothermal calorimetry and the change in the height of the crystallization peak at 65°C in dynamic calorimetry. It was found that both isothermal and dynamic microcalorimetry are useful techniques for quantifying the physical transition of amorphous nifedipine during interactive mixing. The rate and extent of crystallization of amorphous nifedipine depended on both mixing time and speed, but mixing time played a more dominant role because the transformation of amorphous to crystalline nifedipine was greater after 3180 revolutions (9.7%) than after 405 revolutions (0.9%) at 27 rpm. The same trend was observed at 109 rpm, but the percentage of crystalline nifedipine after 3180 revolutions was only 5.2%. This meant that an increase in mixing time rather than speed increased the rate of amorphous to crystalline transformation. The greatest cause for crystal transformation during interactive mixing was the presence of crystal seeds of the thermodynamically stable nifedipine Modification I because the amount of amorphous to crystalline transformation increased from 2.6% for a completely amorphous mixture to 6.6% for a 92:8 mixture of amorphous and crystalline nifedipine when mixed for 30 minutes at 106 rpm.     

化妆品工艺学课程教学方法探讨

为了探索应用型人才的培养模式,本研究通过采用互动式教学、定时对行业热点进行盘点搜索等一系列教学方法的尝试,探讨了化妆品工艺学课程的教学方法,提高了化妆品工艺学课程的教学质量,加强了学生对理论知识的掌握.