一种基于重心的快速细化算法

分析快速细化算法和OPTA细化算法不足产生的内在原因,提出一种新的基于重心的快速细化算法.该算法根据被细化图像的特点,用密度重心快速将纹线细化到3个像素宽度内,计算4邻域拓扑实现彻底细化.仿真结果表明,在细化效率方面,该算法一次遍历删除超过一半的大量冗余像素,是快速细化算法的3～7倍;在细化要求方面,该算法可达到绝对单像素、光滑无毛刺,并能保持端点不被吞噬,能够很好地满足图像细化的要求.     

一种改进的指纹图像细化后算法

对指纹图像细化后算法进行研究,分析了常规细化后处理算法存在的不足,分析其产生的原因,并在常规细化后算法的基础上提出了一种改进的细化后算法。经过实验表明,该算法在继承了原有细化后算法优点的基础上显著地减少了细化后的噪声,是一种较为理想的细化后算法。     

基于两极复合式指纹图像细化算法的研究

针对现有指纹图像模板细化算法中存在的诸如迭代次数较多，细化速度慢，图像局部细化不完全等问题，分析了两种常用的细化算法——快速细化算法和改进的OPTA算法各自的优缺点，提出了一种基于两极复合式算法的指纹图像细化算法，该算法在保证对图像完全细化的同时，能较明显提高细化处理速度。     

改进的ZS细化算法在FPC缺陷定位的应用

针对ZS细化算法中存在冗余像素,在运用到柔性电路板(Flexible Printed Circuit Board, FPC)短路和断路缺陷定位时,会出现误检和重检的情况,提出了一种改进的ZS细化算法.首先,对FPC原始图像进行通道分离和二值预处理,运用ZS细化算法获取初始细化图像;然后,针对Z字型,T字型和十字型交点处存在的像素冗余,构造9个删除模板,改进经典ZS细化算法,消除ZS细化算法的冗余像素;最后,将改进的ZS细化算法、Hilditch细化算法和经典的ZS细化算法应用到FPC短路和断路缺陷定位中,并进行对比.结果表明：改进的ZS细化算法处理时间比经典的ZS细化算法稍长,但只有Hilditch细化算法的1/3左右;改进的ZS细化算法在保证FPC骨架连续性的基础上,实现骨架的单一像素化,可以准确快速地定位FPC的短路和断路缺陷.     

一种混合的文本图像细化方法

基于Manjunath Aradhya等提出的四步细化算法（MA）和Hilditch算法思想的分析,充分融合两种细化算法各自的优点,提出了一种新的文本图像细化方法。该算法首先采用改进的MA细化算法对二值图像作预处理;然后采用Hilditch算法进行细化。实验表明,提出的算法能有效的避免断笔,更好的保留字体拓扑信息,细化结果无畸变。     

指纹图像细化算法的研究

对指纹图像的细化算法进行了较深入的研究，分析了两种常用的细化算法——快速细化算法和改进的OPTA算法各自的优缺点．针对这两种算法的不足，分析其产生的原因，并且在第二种算法的基础上，重新构建了细化模板，提出了一种新的细化算法．经过实验证明。该算法能够很好的满足细化的要求，细化完全彻底，细化以后的指纹骨架在纹线中心线，并保持了纹线原有的拓扑结构和细节特征，而且光滑无毛刺，运算速度也很快．     

指纹图像细化算法的改进算法

对指纹图像算法进行了较深入的研究,分析了OPTA算法和改进的OPTA算法的优缺点,提出了一种新的细化算法,经过实验证明,该算法能够很好的满足细化的要求,细化完全彻底,细化后保持了纹线原有的拓扑结构和细化特征,而且光滑无毛刺,运算速度也很快。     

一种图像细化算法及其在医学图像中的应用

提出一种具有较高准确度的细化算法。通过基本细化和优化等步骤,该算法抽取的骨架相当接近理想的骨架。还讨论这种细化算法在人类染色体图像处理中的应用。     

面向指纹二值图像的两种并行细化算法

本文讨论了两种并行细化算法；其中健壮性并行细化算法是对Ａ．ＤＡＴＴＡ等人提出的算法的一种改进，作为比较，还讨论了数学形态学方法。通过在指纹细化处理中的应用，对这两种算法作了较为详细的比较。     

对汉字图像进行细化处理的一种新算法

细化是图像分析和模式识别中的一个重要的操作,而基于图像集合运算的数学形态学细化算法则是细化算法中的一个重要分支,它可以利用灵活多变的结构元素对不同的图像进行处理.在保持原有图像拓扑关系不变的前提下,给出了一种新的形态学细化算法对汉字图像进行细化处理.     

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.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.