底面
- 与 底面 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component. For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper. For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space state informatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision. Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.
本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上,使用非流形几何模型作为理想材料零件几何拓扑模型的基础,并在半边数据结构基础上,针对理想材料零件的非流形特征局限内部边界上的特点,给出了一个半面数据结构来表述零件的几何拓扑信息;对于理想材料零件的材料模型,本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手,将材料信息表述为(n-1)维单纯形,然后通过对三维几何区域的单纯剖分,以插值的方式表述零件材料分布特征;在此基础上,根据功能梯度材料零件分层制造中对CAD数据处理的要求,给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法;而对于文中所定义的理想材料零件,本文将其材料信息表述分解到细观和宏观两个尺度进行,首先给出了细观尺度上参数化的周期性功能细结构概念,以此来统一表述功能梯度材料(单质材料作为特殊的功能梯度材料看待)、复合材料和功能细结构材料;把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组,以表达零件的细观材料特征;对于零件宏观的材料变化特征,则同样在几何区域单纯剖分的基础上,通过对细观尺度上周期性功能细结构控制参数的插值来完成;通过理想材料零件CAD数据处理的算例,验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。
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This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component.For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material .distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper.For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space stateinformatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision.Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.
本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上,使用非流形几何模型作为理想材料零件几何拓扑模型的基础,并在半边数据结构基础上,针对理想材料零件的非流形特征局限内部边界上的特点,给出了一个半面数据结构来表述零件的几何拓扑信息;对于理想材料零件的材料模型,本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手,将材料信息表述为(n-1)维单纯形,然后通过对三维几何区域的单纯剖分,以插值的方式表述零件材料分布特征;在此基础上,根据功能梯度材料零件分层制造中对CAD数据处理的要求,给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法;而对于文中所定义的理想材料零件,本文将其材料信息表述分解到细观和宏观两个尺度进行,首先给出了细观尺度上参数化的周期性功能细结构概念,以此来统一表述功能梯度材料(单质材料作为特殊的功能梯度材料看待)、复合材料和功能细结构材料;把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组,以表达零件的细观材料特征;对于零件宏观的材料变化特征,则同样在几何区域单纯剖分的基础上,通过对细观尺度上周期性功能细结构控制参数的插值来完成;通过理想材料零件CAD数据处理的算例,验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。
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Let's get it started, let's start addressing this issue and open it up Let's take this shit back to bassmint And we can disscuss statements thats made on this tape And its whole origin of the music that we all know and love The music that we all enjoy the music you all accuse me of tryna destroy Let's rewind it to 89 when I was a boy on the east side of Detroit Crossin 8 Mile in the border in the hate territory I'd like to share a story, this is my story and cant no body tell it for me You will well inform me, I am well aware that I don't belong here You've made that perfectly clear, I get my ass kicked damn near everywhere From Bel-Air shopping center just for stopping in there From the black side all the way to the white side Okay there's a bright side a day that I might slide You may call it a past I call it haulin my ass
让我们拿它开始,让我们开始向这演说议题和公开它向上的让我们拿这粪回到 bassmint 而且我们能 disscuss 陈述那在这卷音带上制造了而且我们全部清楚的它的音乐的全部起源和爱音乐我们全部拥有你全部 tryna 责备我的音乐破坏让我们转回它至 89 当我是一个男孩在那之上东方底特律的边憎恨领土的边缘的 Crossin 8 里我想要到部份一个故事,这是我的故事和伪善之言没有身体告诉它为我你意志井告知我,我是井清楚的我做不属于在这里你有做完全地清楚的,我争取我的驴踢一点近的各处从对停止很正直的贝尔-空气的购物中心在那里从那黑色的边所有的路那白色的边好在那里是光明面一天我可能滑你可能呼叫它一过去我呼叫它 haulin 我的驴
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The pure screw dislocation is easily etched along the steps that the dislocation terminates. Consequently a small Ga-polar plane is formed to prevent further vertical etching,resulting in an etch pit shaped like an inverted truncated hexagonal pyramid at the terminal chiasma of two surface steps.
纯螺位错易于沿着由它结束的表面阶梯被腐蚀,形成一个小的Ga极性面以阻止进一步的纵向腐蚀,因而其腐蚀坑是位于两个表面阶梯交结处的截底倒六棱椎。
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In order to optimize enzymolysis technology for production of antioxidant peptides from chickpea protein, effect of ratio of enzyme to substrate, enzymolysis temperature, and hydrolysis time on the technology in which reducibility and superoxide anion radical capturing rate were taken as response values was analyzed with response surface methodology.
为优化Alcalase蛋白酶酶解鹰嘴豆蛋白制备抗氧化肽的工艺条件,采用响应面分析法,以还原能力、超氧阴离子捕获率为响应值,研究了酶与底物的比值、酶解温度和酶解时间对制备抗氧化肽工艺的影响。
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Ratio of enzyme to substrate, temperature, and hydrolysis time for the production of antioxidant peptides were analyzed with Response surface methodology in which reducibility and superoxide anion radical capturing rate was response value to build a predictive model for the enzymolysis of chickpea protein and the optimization of the enzymolysis technology parameters.
为优化Alcalase蛋白酶酶解鹰嘴豆蛋白制备抗氧化肽的工艺条件,采用响应面分析法(response surface methodology,简称RSM),以还原能力、超氧阴离子捕获率为响应值,研究了酶与底物的比值、酶解温度和酶解时间对制备抗氧化肽工艺的影响。
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The problems of point - line - plane - volume; the facts of square - circle - triangle; the mysteries of central - peripheral - frontal - oblique - concave - convex; the right angle and perpendicular; of scale and position; the interest in post- lintel, wall-slab, vertical-horizontal; the arguments of two-dimensional and three-dimensional space; the extent of a limited field; the meaning of implied extension; the meaning of plan, of section, of spatial expansion - spatial contraction - spatial compression - spatial tension; the direction of regulating lines, of grids; the relationships of figure to ground, or number to proportion, of measurement to scale, of symmetry to asymmetry, of diamond to diagonal; the hidden forces, the ideas of configuration; the static, the dynamic: all these begin to take on the form of a vocabulary.
点-线-面-体的课题;正方形-圆形-三角形的事实;中央-边缘-正对-倾斜-凹入-凸出的奥秘;直角与垂直;尺度与位置;柱-梁、墙-板、竖直-水平的旨趣;两维与三维空间的思辩;局促场所的极限;暗示延伸的含意;平面、剖面、空间扩充-空间收缩-空间挤压-空间张拉的意义;控制线与网格的方向;图与底、数字与比例、尺寸与尺度、对称与非对称、菱形与对角线的关系;暗藏的力量、构型的想法;静态、动态━这一切都将发展成为语汇的形式。
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Height datum: Symmetry plane or the bottom surface.
高度基准上下对称面或底平面(Z = 0)。
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The dung beetle is selected as bionic prototype in this paper to design the working layer of an impregnated diamond bit,which makes the bottom surface always keep the same non-smooth shape and makes the bionic bit maintain a high penetration rate and long-life...
以蜣螂为仿生原形,设计孕镶金刚石钻头的工作层,使工作层底唇面始终具有相同的非光滑形态,始终保持高钻速和长寿命,突显出仿生金刚石钻头的高效率、耐磨和减阻特点。
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Products with silver and copper and other precious metal to do at the end of mold, cast the appearance of thousands of 99.99% pure gold, set of gold honorable appearanceóelectroform in one boutique, and its bright and clean bright velvet sand, decoration clear, lifelike facial expressions, diversification of product range, with Chinese traditional auspicious meaning shapes, elegant chic, exquisite workmanship unsurpassed.
产品用银和铜等贵重的金属做底模,外表精铸99.99%千足金,集黄金的尊贵,雍容华贵的外表于一体的电铸精品,其绒沙面光洁鲜艳,纹饰清晰,表情栩栩如生,产品的种类多样化,具有中国传统的吉祥寓意的造型,精美别致,工艺精湛卓绝。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。