转炉OG系统调径文氏管结构的优化

为提高转炉OG系统烟气除尘效率,依据湿法回收工艺除尘机理,对现代湿法除尘工艺进行了研究.针对系统烟气净化环节,着重对RD文氏管以及第四代环缝文氏管除尘器结构分析,指出两种文氏管线性可调性还有待提高.在此基础之上,提出了一种新的重砣设计方法,结果表明改进后的流量控制结构的线性相关系得到很大提高,对转炉OG系统烟气湿法除尘具有重要意义.     

Cooperative Transmissions in 5G Large-scale Relay Systems: How to Keep a Balance Between Performance and Complexity?

This paper presents a generalized i-vector representation framework with phonetic tokenization and tandem features for text independent as well as text dependent speaker verification. In the conventional i-vector framework, the tokens for calculating the zero-order and first-order Baum-Welch statistics are Gaussian Mixture Model (GMM) components trained from acoustic level MFCC features. Yet besides MFCC, we believe that phonetic information makes another direction that can benefit the system performance. Our contribution in this paper lies in integrating phonetic information into the i-vector representation by several extensions, forming a more generalized i-vector framework. First, the tokens for calculating the zero-order statistics is extended from the MFCC trained GMM components to phonetic phonemes, trigrams and tandem feature trained GMM components, using phoneme posterior probabilities. Second, given the zero-order statistics (posterior probabilities on tokens), the feature used to calculate the first-order statistics is also extended from MFCC to tandem feature, and is not necessarily the same feature employed by the tokenizer. Third, the zero-order and first-order statistics vectors are then concatenated and represented by the simplified supervised i-vector approach followed by the standard Probabilistic Linear Discriminant Analysis (PLDA) back-end. We study different token and feature combinations, and we show that the feature level fusion of acoustic level MFCC features and phonetic level tandem features with GMM based i-vector representation achieves the best performance for text independent speaker verification. Furthermore, we demonstrate that the phonetic level phoneme constraints introduced by the tandem features help the text dependent speaker verification system to reject wrong password trials and improve the performance dramatically. Experimental results are reported on the NIST SRE 2010 common condition 5 female part task and the RSR 2015 part 1 female part task for text independent and text dependent speaker verification, respectively. For the text independent speaker verification task, the proposed generalized i-vector representation outperforms the i-vector baseline by relatively 53 % in terms of equal error rate (EER) and norm minDCF values. For the text dependent speaker verification task, our proposed approach also reduced the EER significantly from 23 % to 90 % relatively for different types of trials.     

Matlab与VC++接口在图像处理中的应用

利用matcom接口将Matlab与VC 相结合并应用于图像处理,以灰度图像直方图为例验证其混合编程方法的优势.在Visual C 平台上新建MFC工程candian.在添加dibapi.cpp和dibapi.h文件基础上,实现DIB图像的读取和显示等功能.最后在相关文件中添加代码#include"matlab.h"和#include"phist.h",编译并运行.     

含孔炸药的孔边应力分析

为研究应力分布规律指导含孔炸药的贮存,应用ANSYS软件对不同放置方式下的含孔炸药进行了建模,采用数值仿真方法获得了不同质量含孔炸药的孔边应力分布规律;结果表明：不同放置方式下炸药孔周边应力分布规律存在较大差别,炸药自身重力对孔周边应力分布有较大影响。     

关于资源补偿费计算方法的探讨

在分别讨论了矿产资源价值、资源税、权利金和资源补偿费的基础上,明确了资源补偿费的基本内涵,并对1994颁布的《矿产资源补偿费征收管理规定》中的资源补偿费计算公式进行了分析、转换,提出矿产资源补偿费的理论计算方法。     

煤炭质量与企业经济效益的关系

简述了煤炭质量的定义,通过对煤炭产品质量与市场、产品成本、产品运输、科学技术关系的论述,说明了煤炭产品质量是企业经济效益的前提和基础。     

开磷集团磷石膏胶结充填系统工艺研究

用磷石膏作为充填骨料充填到井下空区,是综合利用磷石膏的一条新途径。开磷集团的磷石膏胶结充填不仅能减少矿区磷石膏的地表存放,而且能为矿柱的有效回采创造条件。详细介绍了开磷集团磷石膏胶结充填系统及其工艺。     

类等参三维动态八结点有限元的建立及其理论推导

为了改进三维动态有限元的应用,在文献的基础上,本文建立了一种类等参三维动态有限元。这种单元的动态位移形函数是在局部坐标系下形成的,使得其单元刚度矩阵和质量矩阵的形成与一般等参单元的方法相一致,便于应用,与文献[1]相比具有简单、明了的优点。通过算例分析,验证了本文     

面向对象的制造控制系统建模和分析集成方法

提出一种基于面向对象（ＯＯ）的制造控制系统建模和分析集成方法,该方法建立在流行的建模工具－ＳＴＤ、ＩＤＥＦ０、ＯＰＮ和Ｅ／Ｒ基础上,给出了这些模型与ＯＯ模型之间的映射关系,用于克服现有方法的一些局限性。该方法不仅是一种系统方法,也是一种形式化方法,它的使用将大大缩短开发新的控制软件和修改现有控制软件所需的时间。