查询词典 three dimensional torus

The development of animation as the progress of mankind in the new century painting of the logo, the inheritance of human culture and biological organism also update it regularly, the human imagination as an extension of time and space changes, the modern design gradually from 2D to 3D and 4D (that is, We often hear the two-dimensional space, three-dimensional space, four-dimensional space) space extension of the art of color design and science and technology as we show a wealth of space symbol, is also given to the human meaning of a new life.

动画片的发展作为新世纪人类绘画进步的标志，人类文化的继承也和生物机体的不断更新有关，人的想象随着时空的变化而延伸，现代设计也逐步从2D到3D和4D（也就是我们常听到的二维空间、三维空间、四维空间）空间延伸，色彩设计中的艺术化和科技化为我们展现了丰富的空间符号，也赋予人类新的生活内涵。

Selected several kinds of classical humic and fulvic acids molecular model, interacted with metal iconand Simazine of organic pesticide molecule, drawed up its two-dimensional molecular structure modelusing Hyperchem software and converted the two-dimensional drawjings into three-dimensional chemicalmodels and performed a geometry optimization calculation.

选取几种经典的胡敏酸和富里酸模型，使其与金属离子和西玛嗪分子作用，将生成的结合物利用HyperChem软件绘制二维分子结构模型，然后将其进行三维转换和结构优化。

After a brief introduction of Three Dimensional Boolean Operation concepts, we illustrated the way how to decrease the procedure from three dimension to two dimension, and discussed on those singular problems, so that we can get the three dimensional topological information.

在简要的描述三维布尔运算基本概念后，我们给出了具体的三维到二维的降维过程，讨论了在二维空间中解决奇异问题的方法，最后得到三维重构拓扑信息。

This work is supported by the Ministry of Science and Technology of China (No. 2004BA901A02). Three new theoretical models are proposed in this paper, which are three dimensional stability analysis model of landslides with single slip surface, three dimensional stability analysis model of landslides with multiple slip surface and failure time prediction model of landslides. Moreover, the kinetic rule of sliding body and rockfall are also discussed in this thesis.

在国家科技攻关计划"西部开发科技行动"重大项目(编号：2004BA091A02)的资助下，本文建立了单滑面滑坡三维稳定性分析模型、多滑面滑坡三维稳定性分析模型和滑坡失稳时间预测模型，同时还对滑落体和崩落体的运动规律进行了探讨。

Advertisement creative design and production - Business VI Visual Identity System - posters, advertising, outdoor ads, such as print media advertising creative, design and production - the effect of three-dimensional space design - Terminal publicity materials design, printing, printing and production of terminal logo logo display terminal design and production - retail, restaurant chains, the Exhibition Hall, proprietary point of sale visual, display, logo design and production - large-scale buildings and public facilitiessystem design and production - display display rack, Steel-wood counters , props, metal, plexiglass products, design and production planning and implementation of the Convention and Exhibition Events - Exhibition design, exhibition and set up the planning, organization - the contractors of various large-scale exhibition PR campaign society System: display cabinets and display of aircraft products and Exhibition Items Exhibition Logo Products Terminal Units structures: the word independent Lightbox plexiglass signs carved three-dimensional packing of hard metal processing of aluminum and neon signboards word products LED advertising signs lightguide plate flipped three ultra-thin light box light box cloth 3M Film 3M Inkjet Printer Photo Posters posters from scratch, from a point to face, from the visual culture, from the surface to the deep, from products to brands, Norma are consistent pursuit.

广告创意设计及制作-企业VI视觉识别系统-海报、车身广告、户外广告等平面媒体的广告创意、设计及制作-三维立体空间效果设计-终端宣传品的设计、印刷、喷绘及制作终端标识终端标识展示设计及制作-零售、餐饮连锁店、展示厅、专卖售点的视觉、展示、标识设计和制作-大型建筑物及公共设施导视系统的设计和制作-展示展架、钢木柜台、道具、金属、有机玻璃制品的设计和制作会展活动策划及执行-展览会设计、布展及搭建策划、组织-承办各项大型社会公关活动展览展示系统：展示柜及陈列架产品展示道具展览展台搭建终端标识产品：独立字灯箱有机玻璃雕刻立体吸塑硬招牌金属加工铝字招牌霓虹灯及LED制品三翻转广告招牌导光板超薄灯箱 3M灯箱布喷绘 3M贴膜宣传画招贴喷绘写真从无到有，从点到面，从视觉到文化，从表面到深邃，从产品到品牌，是诺玛一贯的追求。

On this basis, using the same theories and methods, we set up the three-dimensional steady-state models of ideal well productivity about a reverse double-branch horizontal wells, the three branches of radial horizontal wells, fish-bone shape three branches horizontal wells and two-dimensional four branches horizontal wells In five reservoirs respectively.

在此基础之上，运用同样的理论和方法，建立了反向双分支水平井、辐射状三分支水平井、鱼骨形三分支水平井和二维四分支水平井这四种分支水平井分别在以上五种油藏中的三维稳态理想井产能模型。

In order to understand the swirl system deeply,the three-dimensional particle dynamic analyzer was used to measure the velocities of the steady turbulent cold flows in the swirl three-branched modular junction located at the end of the exhaust system,and three-dimensional numerical simulation of the flows was carried out by use of the ALE algorithm.

为了深入研究螺旋流排气系统的工作机理，作者利用三维粒子动态分析仪(3D-PDA)，对一始端螺旋流三分支模件的稳态湍流流场进行了测量，并用ALE法进行了三维流动数值模拟。

Exhibition hall is divided into four, nine galleries, one of electric and magnetic layer for the area, power and machinery area, math section, the universe and Space Pavilion, set up a high-voltage discharge, electric magnetic Gallery, bowls, a typical mechanical transmission, three-dimensional coordinates and other exhibits; the second floor for the sound and light booth, Applied Technology Pavilion, set up a light display, three-dimensional holographic images, sound simulation, laser laser, simulated driving and other exhibits; three for the Life and Health Pavilion, set up a false impression cylinder, fitness tests, brain and facial features, body systems, such as exhibits; underground floor for temporary exhibitions; in the Office of the Hebei Academy of Sciences set up a pavilion style.

展厅共分四层，九个展区，其中一层为电与磁展区、力与机械展区、数学展区、宇宙与航天展区，设置了高压放电、磁电廊、滚球、典型机械传动、三维坐标等展品；二层为声与光展区、应用技术展区，设置了光路展示、全息立体影像、声音模拟、激光内雕、模拟驾驶等展品；三层为生命与健康展区，设置了错觉滚筒、体能测试、大脑与五官、身体各系统等展品；地下一层为临时展览；中厅设置了河北院士风采展区。

We obtained the nasal deformation with three-dimensional reconstruction images and adjusted to separate the images of nasal cartilage, defined the form and structure of nasal deformation. Then we measured 10 cases of adult cadavers nasal alar, lateral and septal cartilage through modern mechanical measuring instruments, to obtain the elastic modulus of above three part structure of nasal cartilage, then to obtain more accurate nasal cartilage elastic modulus data through statistical analysis. At the same time, according to the relevant literature, we obtained nasal soft tissue biomechanical properties, mainly were elastic modulus and Poisson\'s ratio. Finally we established three-dimensional finite element analysis model of unilateral cleft lip nasal deformation, defined the model\'s constraint conditions and carried out biomechanical measurement and analysis of unilateral cleft lip nasal deformation.

将唇裂鼻畸形患者鼻部进行三维重建并调校，分离出外鼻软骨的影像，并对鼻部组织进行分层和重建，确定畸形鼻的形态和组织结构；通过现代力学测量仪器，对10例成人尸体鼻部的大翼、侧鼻和中隔软骨进行弹性模量的测量，获得上述三部分鼻部软骨结构的弹性模量数据，并通过统计学分析来获得较为准确的鼻部软骨结构的弹性模量数据，同时查阅相关文献，得到鼻部软组织的相关生物力学性质，主要为弹性模量和泊松比；建立单侧唇裂鼻畸形的畸形鼻部三维有限元分析模型，确定有限元分析的边界条件等，进行单侧唇裂鼻畸形的鼻部生物力学的测量和分析。

The following exciting results are revealed: 1 When considering the influence of some nonlinear elements such as hard-limit of exciters, the effects of some devices such as Power System Stabilizer and Static Var Compensator which can introduce positive damping in power system, the reasonability of system parameter values in simulation, the SNB surface and HB surface on the boundary of SSSR will turn close to each other and even coalesce together; 2 Under some conditions, coupling between slow exciters and shunt capacitors will bring negative damping in power system dynamics, which increases the possibility of oscillatory instability. So the power system with mass shunt compensators is easily subjected to the oscillatory instability. In recent years, chaotic phenomena of power system have been reported many times. Some simulation studies even found chaos existing inside the power system SSSR. In this dissertation, chaotic phenomena in power systems are thoroughly studied in order to make clear the relation of chaos and SSSR. The following results are derived: 1 Based on Li-Yorke Theorem and their definition on the chaos, the existence of chaos in power system is verified; 2 Three possible routes of causing chaos in power system are found and deeply investigated. They are route of cascading period doubling, route of directly initial energizing and route of torus bifurcation (or quasi-periodicity). The latter two routes are investigated for the first time in power system stability studies; 3 When the stability conditions of chaos are broken, it is found they can lead to voltage collapse, angle divergence, or voltage collapse with angle divergence simultaneously.

针对在电力系统小扰动稳定区域内可能存在混沌吸引域的有关报道，本文深入研究了电力系统混沌现象的出现途径和与系统失稳模式之间的关系：1利用Li-Yorke定理和Li-Yorke的混沌定义，从理论上证明了电力系统混沌现象的存在性；2发现了电力系统中导致混沌出现的三种可能途径：倍周期分岔导致混沌、初始能量直接激发混沌和经由环面分岔导致混沌，并对后两种新发现的途径进行了较为细致的研究；3发现了混沌极限环破裂导致电压崩溃、角度失稳以及电压崩溃和角度失稳同时出现的现象，其中混沌极限环破裂导致系统角度失稳和电压崩溃及角度失稳同时出现的现象均属首次报道；4证明由微分-代数方程描述的系统模型，其小扰动稳定域的边界只包含HB、SNB和SIB三种分岔界面，在SSSR的内部和边界上，均不可能存在会导致混沌的点，从而将混沌现象排除在小扰动稳定域的研究之外，简化了后者的研究工作。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。