浅析服装结构设计课程中CAD技术的差异化应用

服装CAD技术的普及与应用,给传统服装结构设计课程的教学带来了变革的契机.结合课堂调研,论述在目前服装CAD技术被越来越多地应用于高校课堂的背景下,如何针对不同年级学生的特点,差异化地应用服装CAD技术辅助服装结构设计课程的教学.     

服装CAD与结构设计课程的整合

CAD是运用计算机软件制作井模拟事物设计的一种技术,将服装结构设计与CAD技术进行整合,可以有效地提高服装的设计水平.将服装CAD与结构设计课程相整合,可以大幅度提高学生的职业技能,并为社会培养服装专业的复合型应用人才.该文分析了服装CAD与结构设计两门课程的教学整合现状,希望可以为服装行业的发展提供有益借鉴.     

国内外服装CAD操作系统的对比与展望

国内外服装CAD产品操作系统的对比与服装CAD的展望 ,未来CAD的发展趋势应向三维技术与智能化方面发展 ,并针对现在服装CAD软件在服装工厂中的实际应用进行了论述 ,为服装CAD的研究及今后在服装企业的普及、应用与推广有着重要的意义。     

服装CAD应用分析

在介绍服装CAD系统的工作步骤和三维人体建模技术的基础上,分析了当前服装CAD的应用困境,并对存在的问题提出了解决对策.     

人体尺寸测量CAT及服装CAD系统

随着计算机技术的发展,计算机辅助设计 (CAD)技术也逐渐运用到服装行业中,服装 CAD技术已成为服装行业提高市场竞争能力的强大工具在运用服装 CAD时,人体尺寸测量是 CAD获得原始数据关键,计算机辅助人体测量技术 (CAT)的开发与应用,解决了以往人工接触测量人体尺寸给推广服装 CAD带来的制约,充分发挥服装 CAD的各项功能,实现“量体裁衣”自动化     

服装CAD的应用及技术研究

通过深入了分析服装CAD的功能和模块设计,结合目前服装企业对于服装CAD的应用现状,总结了服装CAD对于企业的作用,并提出了企业应用服装CAD的措施和方法。同时,针对目前三维服装CAD的发展,研究了三维服装CAD的技术特点和构成,为服装CAD的发展和研究提供了理论基础。     

浅谈国内企业服装CAD运用现状及对策

服装企业的设计能力和生产能力是衡量服装企业综合实力的重要依据，服装工业生产逐步由劳动密集型向知识、技术密集型发展，采用服装CAD是必然趋势。电脑技术的运用改变了服装企业生产流程，其中服装CAD的普及应用是服装数字化时代的核心内容之一。本文就CAD的现状浅谈了在生产实际中得到广泛的运用及对策。     

高职院校服装CAD教学改革探析

通过对服装CAD技术及应用现状的分析，阐述了加快高素质服装CAD应用型人才培养的重要性和紧迫性，剖析了当前高职院校服装CAD教学模式．提出了服装CAD课程建设和教学改革的思路。     

应用服装CAD技术建立服装终端快速反映系统

服装CAD技术在服装设计、生产及管理等方面有了广泛的应用,规模企业大都实现了设计、生产、管理一体化的快速反映系统,但在终端销售环节中,服装CAD技术应用不够普遍。应用服装CAD技术建立终端快速反映系统,架起设计生产与消费者之间的高速路,是建立服装产业链快速反映系统的重要保证,前景广阔,值得探讨。     

影响女腰细体结构的重要控制部位的研究

服装CAD技术在20世纪70年代引入服装行业后,已显示出强大的生命力,给服装企业带来了巨大的效益. 本文将应用逐步回归,运用C 语言进行计算,建立女腰细体控制部位规格尺寸与各细部部位规格间的计算关系.通过对女腰细体各部位逐步回归数学模型进行比较,发现腰围在控制部位中对女腰细体各部位结构设计数学模型的影响最大,此结论将为服装企业提供制板经验,为服装CAD技术立体化、智能化、数字化技术应用于服装样板设计方法研究打下坚实的基础.     

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.     

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…     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

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。     

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     

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