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1.
为了提高对产品商标符号性艺术表达的效果,需要进行产品商标符号的三维重建,提出一种基于3D打印机的产品商标符号性艺术三维仿真模型。采用帧扫描技术进行产品商标符号性艺术图形的采集,采用3D打印特征点检测方法进行产品商标符号艺术特征点检测,构建产品商标符号性艺术图形的3D打印特征点三维重构模型,结合分布灰度直方图进行产品商标符号性艺术图形的仿射不变区域检索,结合3D打印特征点的动态分布情况对产品商标符号性艺术图形进行三维重建设计。仿真结果表明,采用该方法进行产品商标符号性艺术三维设计的效果较好,3D打印效果较佳,特征配准度高达99.88%,大大提高了产品商标符号设计的艺术性。  相似文献   

2.
2001年新修订的《商标法》虽然新增了三维商标的规定,但陶瓷企业没有很好利用。陶瓷产品的商标的创新与法律保护十分重要。本文分析了陶瓷商标创新与保护不足之原因,并探讨了七种很有参考价值的陶瓷商标的创新与法律保护路径。尤其对立体商标在陶瓷中的利用作了有益探讨。  相似文献   

3.
论立体商标与外观设计的法律保护   总被引:1,自引:0,他引:1  
张永来  何文杰 《甘肃科技》2003,19(12):53-54,106
简要介绍了立体商标与外观设计法律保护的历史沿革和现状、重点论述了立体商标与外观设计及其相关概念的法律界定、各国法律对立体商标与外观设计的保护,通过论述指出了立体商标与外观设计在一定条件下法律保护的竞合性。  相似文献   

4.
三维可视化展示系统在数字小区中的设计与应用   总被引:2,自引:0,他引:2  
为了在城市小区规划、管理和房地产产品演示等方面以立体造型技术向用户展示地理空间现象,采用三维空间数据建模与可视化管理的方法,研究了三维可视化在数字小区中的设计与应用.结果表明:建立三维GIS模型代替传统的平面图纸、立体效果图,可以从空间的角度分析和显示物体,从而帮助人们更加准确真实地认识感受客观世界,并实现灵活的交互式操作.该成果对三维空间数据模型和数据结构、三维空间数据管理与空间数据分析以及可视化表达有一定的参考意义.  相似文献   

5.
为实现在三维织造中多层经纱形成多个清晰的梭口,分析了传统织机开口机构的特点以及织机开口综框的运动规律.根据织造三维机织物对立体织机开口机构的特殊要求,认为正弦加速运动规律适合于立体织造综框运动的要求,并基于正弦加速运动规律,设计了一种新型的电子开口系统.该开口系统采用可编程序控制器(PLC)、伺服电动机驱动的方法控制立体织机的综框运动,简化了开口机构,提高了立体织机开口系统的灵活性和可靠性.  相似文献   

6.
近年来传统方式建立的网站已经不能满足用户的需要,基于互联网的三维虚拟场景的应用不断涌现。本文基于最新的第二代网络立体设计语言X3D,结合Web3D开发工具及强大的建模工具3dsmax,设计了一套完善的开发三维虚拟城市网站的解决方案,应用该方案能够快速制作出产品级的三维网站。  相似文献   

7.
双目立体视觉研究利用二维投影图像恢复三维景物世界的问题,其中三维重构是立体视觉测量过程的主要组成部分之一,是从二维图像恢复三维景物的关键环节.针对空间点目标的三维重构,传统的方法是采用最小二乘法进行的,但是由于最小二乘法没有考虑所建立的超定方程组所代表的几何意义,所以计算出的点坐标精度不高.对此,从几何学的角度出发,提出了一种异面直线公垂线段中心法来提高点目标的重构精度.实验表明,该方法比传统的最小二乘法具有更高的测量精度.  相似文献   

8.
为了在网络环境下使地上下无缝集成模型具有更加逼真的显示效果,分别采用主动式和被动式两种方法实现三维模型的立体显示.地上下集成模型以CD-TIN为纽带,将地上建筑物、地表与地下空间实体进行无缝集成.根据立体图像对的生成原理实现三维模型的立体显示,并使用ActiveX控件实现三维模型的网络化表达,从而构建了一个网络环境下的地上下无缝集成模型立体显示系统.观察者通过佩戴立体眼镜即可观察三维立体模型.实验结果表明,采用立体显示方法能增强模型的显示效果,使观察者产生较强的沉浸感,有利于对三维地学模型的观察和分析.  相似文献   

9.
随着世界经济全球化进程的推进,越来越多的企业都希望把自己的产品推向国际.为了尽快使全球的消费者能够青睐自己的产品.企业必须要注意商标的翻译.本文探讨了商标汉英翻译中的问题、商标翻译的原则及商标翻译的方法这三个方面的内容.  相似文献   

10.
虚拟现实技术在移动机器人作战平台遥操作中的应用,可增强操控人员的视觉临场感,提高操控效率.基于立体视觉的三维建模是构建虚拟环境的基础.根据立体视觉的基本原理,研究了立体视觉的三维建模方法.在对比同类型中不同算法基础上,提出适合立体视觉系统的三维建模算法,提出提高空间点求解精度的改进算法,最后用Open Inventor进行三维模型可视化显示.试验结果表明,该方法具有良好的建模效果,能精确反映障碍物深度信息.  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
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.  相似文献   

14.
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.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
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。  相似文献   

20.
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.  相似文献   

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