服装点放码位移量探讨

引入"位移量"概念,试图从数学推导的角度对档差公式、档差、位移量进行推理.提出了位移量与档差的运算关系式.为准确、迅速求取点放码的位移量提供了快捷方便的方法,解决了服装点放码的困惑.     

服装样板推档器

阐述了一种根据服装样板推档原理和操作实际而设计的样板放码推档专用工具，这种专用器具可作为放码点的坐标测量，利用平行四边形原理设计的伸缩装置，一次性可将一系列放码点确定出来，真正使测量与放码定位合二为一．对提高样板放码设计工作效率和准确性，降低推档工作的技艺性要求，促进服装样板的规范化、标准化，都具有现实意义。     

一种基于预测的矢量量化图像编码方法

为了提高图像编码效率，提出了一种基于预测的矢量量化图像编码方法．在编解码端设置维数和大小各不相同的两种码书．对于平滑区域，用较小的码书对输入矢量进行编码，从而加快图像编码速度和降低比特率；对于边缘区域，用较大的码书去量化当前输入矢量以保证图像质量．文中还提出了一种有效的码书设计方法以提高生成的码书的质量．仿真结果表明，相对于其它方法，文中所提出的矢量量化图像编码方法运算速度更快，在同样图像质量下降低了传输过程中所需的比特率．     

服装工艺CAD系统中纸样放码方法的研究

放码是服装工艺CAD系统中非常重要的一个功能。讨论了目前服装工艺CAD系统中采用较多的服装纸样放码方法，详细地研究了点位移法、切开线法、数据库法和码等分法等服装纸样放码方法的基本原理和特点。     

神经网络矢量量化的设计与实现

设计了一种混合神经网络矢量量化编码方法。利用Ｋｏｈｏｎｅｎ网络的自组织聚类功能设计矢量量化器码书，实现矢量量化，用３层ＢＰ网络完成码字的信道符号编码。该神经网络矢量量化编码器能够并行处理输入矢量，速度快，效率高，适用于语音和图像数据压缩     

服装3.4号型系列的规格档差设计研究

通过对服装企业和消费者的调研、收集各种服装的规格档差数据，指出国家标准服装号型5．4系列设定的规格档差与人体体型变化规律存在差异，提出3．4系列推档数值与人体体型变化规律的吻合度及科学、合理性与可行性。     

基于模拟退火技术的多级矢量量化编码方案

研究了矢量量化最优码书的形成条件，以多级矢量量化和模拟退火技术为基础，提出一种基于模拟退火技术的多级矢量量化编码方案。实验证明，该算法不仅降低了计算的复杂度和码书存储量，而且在较高压缩比下可获得较好的图像恢复。     

码书分类重排矢量量化方法及其应用

矢量量化可有效降低语音编码速率,但目前已有的多级分裂矢量量化、转换分类分裂矢量量化方法等都存在存储需求、计算复杂度以及解码语音质量等不能达到良好折衷的缺陷。该文提出了一种码书分类重排矢量量化方法。该方法通过将设计好的码书进行分类重排以降低码书搜索范围。并将该方法与多级分裂矢量量化结合,提出了码书分类重排多级分裂矢量量化方法。在量化比特及码书大小不变的前提下,实验结果表明:该方法可达到透明量化效果,量化时的计算复杂度最大降幅可达到多级分裂矢量量化方法的90.24%。     

电磁场理论中的符号矢量方法

介绍了由Ｔａｉ Ｃ．Ｔ．教授创建的符号矢量方法，对于知量场论中长期存在的混淆与问题进行了剖析，利用符号矢量方法，给出了各种坐标系中矢量分析的主要公式，用统一的数学基础将矢量场论系统化，使其成为完整，严格的理论。     

灰度图象的快速矢量量化

本文改进了矢量量化的码书设计方法和编码的搜索过程，大大提高了矢量码书的训练效率 和编码速度，获得了满意的压缩速度和效果，通过对标准测试图象的测试，速度平均提高了２．６倍，而信噪比却下降很少。     

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.     

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.     

A computer generator for randomly layered structures

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

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with