三维服装表面接缝等级的客观评价

提出了一种三维立体服装表面接缝的客观评价方法,为了在三维空间描述服装接缝外表,在测试时,将样品放在5种不同的支持面上(平面,凸面,沿接缝的斜面,凹面,垂直接缝的斜面).样品的准备用了5种织物,每一种织物做了5个等级的样品,用激光扫描仪测试样品皱褶的幅值,然后用一个带通德波器德波.被滤掉的波包括纱线及织物结构引起的高频波,以及支持面外表形成的低频波,经过带通滤波器后,用4个统计参数描述接缝皱褶等级,同时对客观的4个统计参数与主现评价的等级(根据AATCC的标准)做回归分析,其中两个参数与皱褶等级之间具有良好的线性关系.     

外圆磨削表面粗糙度的在线监测方法研究

通过理论分析和试验研究，找到了与磨削表面粗糙度有关的摩擦AE信号特征，在此基础上提出了基于神经网络的外圆磨削表面粗糙度监测方法，利用神经网络建立声发射信号特征信息与磨削表面粗糙度之间的非线性映射关系，仿真结果表明利用该方法可以实现磨削表面粗糙度的在线评估。     

一种自适应PCNN图像融合方法

提出一种以图像局部方差和均值作为脉冲耦合神经网络(PCNN)参数自动调整的融合方法,并与多种金字塔融合算法、主成分分析融合方法、小波变换等图像融合算法进行比较.研究结果表明:所提出的融合方法无论是主观视觉效果还是客观评价结果均具有一定的优势,这对于拓宽PCNN的理论研究和实际应用具有一定价值.     

基于EEMD-HT与LSSVM的柴油机辐射噪声品质预测技术

为了预测柴油机辐射噪声品质,采用基于集总经验模态分解(EEMD)、希尔伯特变换(HT)与最小二乘支持向量机(LSSVM)相结合的柴油机辐射噪声品质预测方法.该方法先采集柴油机辐射噪声信号,进行滤波和EEMD,再用HT得到相应的特征模态函数(IMF)分量的瞬时频率并对其进行临界频率带计权,最后计算其能量得到声音信号特征作为输入;用等级评分法对柴油机辐射噪声进行主观评价试验,把主观评价值作为输出;利用LSSVM训练得到预测模型.同时,以心理声学客观参数作为LSSVM的输入,建立另一个预测模型.分别用两个预测模型进行预测,结果表明基于EEMD-HT与LSSVM的柴油机辐射噪声品质预测模型具有更高的声品质预测精度,即更加接近人的主观感受.     

应用灰色系统理论对叉车声品质分析与预测建模

为了研究灰色系统理论在声品质预测建模方面应用的有效性,对5款3吨位叉车在怠速和额定转速工况下的30个车内外辐射噪声样本进行了研究。以烦躁度为主观评价指标,采用等级评分法进行了主观评价实验。运用Artemi S软件分析计算了主要心理声学客观参数。选取了响度、尖锐度、粗糙度和抖动度为主要分析对象;运用灰色系统理论算法分析了烦躁度与心理学客观参数的相关性,得到各相关系数。证明了所取心理学客观参数与烦躁度之间具有较高的相关性。基于灰色系统理论的GM(0,N)模型,建立了烦躁度的预测模型,并对预测模型进行了误差检验。结果表明基于灰色系统理论所建立的烦躁度预测模型具有较高的精度,即预测值能够较接近人的主观感受。     

基于灰色系统理论的叉车声品质分析与预测建模

为了研究灰色系统理论在声品质预测建模方面应用的有效性,本文以5款3吨位叉车在怠速和额定转速工况下的30个车内外辐射噪声样本为研究对象,以烦躁度为主观评价指标,采用等级评分法进行了主观评价实验;运用ArtemiS软件分析计算了主要心理声学客观参数,选取了响度、尖锐度、粗糙度和抖动度为主要分析对象;运用灰色系统理论算法分析了烦躁度与心理学客观参数的相关性,得到各相关系数,证明了所取心理学客观参数与烦躁度之间具有较高的相关性;基于灰色系统理论的GM(0,N)模型,建立了烦躁度的预测模型,并对预测模型进行了误差检验;结果表明基于灰色系统理论所建立的烦躁度预测模型具有较高的精度,即预测值能够较接近人的主观感受。     

基于虚拟仪器和神经网络的电力电子电路故障诊断

电力电子电路中晶闸管开路和短路故障最为常见，为实现故障的在线自动诊断，以三相整流电路为例，利用虚拟仪器进行数据采集、分析及特征信号提取，特征信号作为神经网络的输入进行电力电子电路在线故障诊断，通过实验验证，该方法误诊率极低，达到了较为理想的效果。     

基于光度立体视觉的织物褶裥等级评定

针对目前织物褶裥等级依赖专家主观评定存在不确定因素的问题,提出了利用光度立体视觉算法进行织物褶裥等级评定的方法.在8个不同方向的光照下拍摄多幅织物图像,得到二维灰度图像,并通过一次差分运算重建织物表面各点的高度,利用三维重建获取织物表面形状信息.通过试验提取高度值和尖锐度来表征褶裥特征,以此客观评估织物褶裥的等级.     

基于输出的语音质量客观评价方法研究

在分析语谱图基础上提出了一种基于输出的语音质量客观评价方法－度量语亦图密度分布特征MDCSD（Measuring Distribution Characteristics of Spectrogram Density) 方法。该方法通过计算功率谱二维联合概率分布特征来描述不同质量语音信号的语谱图特征,并以此来对语音质量进行了客观评价,实验结果表明该方法是一种性能良好的基于输出的客观评价方法,其评价结果与主观评价的相关度达到0．8左右。     

基于电子鼻技术的黄山毛峰茶品质检测方法

为了更加客观地评价黄山毛峰茶的品质,提出了一种利用电子鼻技术对黄山毛峰茶品质检测的方法。选择4种不同品质等级的茶叶,首先根据传感器响应选择特征变量,然后以这些特征变量作为BP神经网络的输入,建立茶叶品质等级的3层网络预测模型。实验结果表明,本文建立的模型对于训练样本识别准确率为100%,对测试样本识别准确率为89.3%,表明应用电子鼻技术检测黄山毛峰茶品质具有可行性。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-