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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,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,针对理想材料零件的非流形特征局限内部边界的特点,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,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,通过对细观尺度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。

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,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,针对理想材料零件的非流形特征局限内部边界的特点,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,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,通过对细观尺度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。

To oversee all the details yourself in person; to be at once pilot and captain, and owner and underwriter; to buy and sell and keep the accounts; to read every letter received, and write or read every letter sent; to superintend the discharge of imports night and day; to be upon many parts of the coast almost at the same time -- often the richest freight will be discharged upon a Jersey shore;-- to be your own telegraph, unweariedly sweeping the horizon, speaking all passing vessels bound coastwise; to keep up a steady despatch of commodities, for the supply of such a distant and exorbitant market; to keep yourself informed of the state of the markets, prospects of war and peace everywhere, and anticipate the tendencies of trade and civilization -- taking advantage of the results of all exploring expeditions, using new passages and all improvements in navigation;-- charts to be studied, the position of reefs and new lights and buoys to be ascertained, and ever, and ever, the logarithmic tables to be corrected, for by the error of some calculator the vessel often splits upon a rock that should have reached a friendly pier -- there is the untold fate of La Perouse;-- universal science to be kept pace with, studying the lives of all great discoverers and navigators, great adventurers and merchants, from Hanno and the Phoenicians down to our day; in fine, account of stock to be taken from time to time, to know how you stand.

亲自照顾一切大小事务;兼任领航员与船长,业主与保险商;买进卖出又记账;收到的信件每封都读过,发出的信件每封都亲自撰写或审阅;日夜监督进口货的卸落;几乎在海岸的许多地方,你都同时出现了似的;——那装货最多的船总是在泽西岸卸落的;——自己还兼电报员,不知疲倦地发通讯到远方去,和所有驰向海岸的船只联络;稳当地售出货物,供给远方的一个无餍足的市场,既要熟悉行情,你还要明了各处的战争与和平的情况,预测贸易和文明的趋向;——利用所有探险的成果,走最新的航道,利用一切航海技术的进步;——再要研究海图,确定珊瑚礁和新的灯塔、浮标的位置,而航海图表是永远地改而又改,因为若计算有了一点错误,船只会冲撞在一块岩石而至于粉碎的,不然它早该到达了一个友好的码头了——,此外,还有拉·贝鲁斯的未知的命运;——还得步步跟宇宙科学,要研究一切伟大的发现者、航海家、探险家和商人,从迦太探险家饭能和腓尼基人直到现在所有这些人的一生,最后,时刻要记录栈房中的货物,你才知道自己处于什么位置

Its universality: its democratic equality and constancy to its nature in seeking its own level: its vastness in the ocean of Mercator's projection: its unplumbed profundity in the Sundam trench of the Pacific exceeding 8000 fathoms: the restlessness of its waves and surface particles visiting in turn all points of its seaboard: the independence of its units: the variability of states of sea: its hydrostatic quiescence in calm: its hydrokinetic turgidity in neap and spring tides: its subsidence after devastation: its sterility in the circumpolar icecaps, arctic and antarctic: its climatic and commercial significance: its preponderance of 3 to 1 over the dry land of the globe: its indisputable hegemony extending in square leagues over all the region below the subequatorial tropic of Capricorn: the multisecular stability of its primeval basin: its luteofulvous bed: its capacity to dissolve and hold in solution all soluble substances including millions of tons of the most precious metals: its slow erosions of peninsulas and islands, its persistent formation of homothetic islands, peninsulas and downwardtending promontories: its alluvial deposits: its weight and volume and density: its imperturbability in lagoons and highland tarns: its gradation of colours in the torrid and temperate and frigid zones: its vehicular ramifications in continental lakecontained streams and confluent oceanflowing rivers with their tributaries and transoceanic currents, gulfstream, north and south equatorial courses: its violence in seaquakes, waterspouts, Artesian wells, eruptions, torrents, eddies, freshets, spates, groundswells, watersheds, waterpartings, geysers, cataracts, whirlpools, maelstroms, inundations, deluges, cloudbursts: its vast circumterrestrial ahorizontal curve: its secrecy in springs and latent humidity, revealed by rhabdomantic or hygrometric instruments and exemplified by the well by the hole in the wall at Ashtown gate, saturation of air, distillation of dew: the simplicity of its composition, two constituent parts of hydrogen with one constituent part of oxygen: its healing virtues: its buoyancy in the waters of the Dead Sea: its persevering penetrativeness in runnels, gullies, inadequate dams, leaks on shipboard: its properties for cleansing, quenching thirst and fire, nourishing vegetation: its infallibility as paradigm and paragon: its metamorphoses as vapour, mist, cloud, rain, sleet, snow, hail: its strength in rigid hydrants: its variety of forms in loughs and bays and gulfs and bights and guts and lagoons and atolls and archipelagos and sounds and fjords and minches and tidal estuaries and arms of sea: its solidity in glaciers, icebergs, icefloes: its docility in working hydraulic millwheels, turbines, dynamos, electric power stations, bleachworks, tanneries, scutchmills: its utility in canals, rivers, if navigable, floating and graving docks: its potentiality derivable from harnessed tides or watercourses falling from level to level: its submarine fauna and flora, numerically, if not literally, the inhabitants of the globe: its ubiquity as constituting 90 percent of the human body: the noxiousness of its effluvia in lacustrine marshes, pestilential fens, faded flowerwater, stagnant pools in the waning moon.

50它的普遍性,它的民主的平等性,以及保持着它自身求平的本质。用墨卡托投影法在地图所标示出的浩淼的海洋;太平洋中巽他海沟那超过八千噚的不可测的深度;永不消停、后浪推前浪地冲刷着海岸线每一部位的波涛以及水面的微粒子;水的单位粒子的独立性;海洋变幻莫测;根据液体静力学,风平浪静时它纹丝不动;根据液体动力学,小潮大潮时它便涨了起来。暴风雨后一片沉寂;北极圈与南极圈冰冠地带的不毛性以及对气候及贸易的影响;跟地球的陆地相比占三对一优势;它在亚赤道带南回归线以南的整个区域延伸无数平方海里的绝对权威;其在原始海盆里数千万年以来所保持的稳定性;它那橙红色海床;它那把包括数百万吨贵金属在内的可溶解物质加以溶解,并使之保持在溶解状态的性能;它对半岛和有下陷趋势的岬角所产生的缓慢的浸蚀作用;其冲积层;其重量、容积与浓度;它在咸水湖、高山湖里的静谧;其色调因热带、温带和寒带而变为或浓或淡;与陆的湖泊、溪流及支流汇合后注入海洋的河川,还有横跨大洋的潮流所构成的运输网。沿着赤道下面的水路自北向南的湾流;海震、水龙卷、自流井、喷泉、湍流、漩涡、河水暴涨、倾盆大雨、海啸、流域、分水岭、间歇泉、大瀑布、漩流、海漩、洪水、泛滥、暴雨等滥施淫威;环绕陆地的层土壤那漫长的曲线;源泉的奥秘可用探矿杖来占卜或用湿度测定器来揭示;阿什汤大门的墙壁的洞、空气的饱和与露水的蒸发能够证明那潜在的湿度;水的成分单纯,是氢二、氧一的化合物;水的疗效;水的死海里的浮力;它在小溪、涧谷、水坝的缝隙、船舷的裂口所显示的顽强的浸透性;它那清除污垢、解渴、灭火、滋养植物的性能;作为模范和典型,它的可靠性;它变化多端:雾、霭、云、雨、麦、雪、雹;并在坚固的消防龙头发挥出压力;而且千姿百态:湖泊、湖岔、内海、海湾、海岬、环礁湖、环状珊瑚岛、多岛海、海峡、峡江、明奇、潮汐港湾、港湾;冰河、冰山、浮动冰原显示出它是何等坚硬;在运转水车、水轮机、发电机、发电厂、漂白作坊、鞣皮厂、打麻厂时,它又是那样驯顺;它在运河、可航行的河川、浮船坞和干船坞所起的作用;潮汐的动力化或利用水路的落差使它得以发挥潜力;海底那些成群的动物和植物虽然并非名副其实地栖息在地球,论数目却占地球生物的一大半;水无所不在,占人体的百分之九十;在沼泽地、闹瘟疫的湿地、馊了的花露水以及月亏期那淤积污浊的水塘子,水所散发的恶臭充满了毒气。

EP2 immunostaining was gradually strengthened in the luminal epithelium and glandular epithelium from day 1 to 5 of pregnancy, followed by the gradual reducing of immunostaining on days 6-9. No specific signals for EP2 mRNA were detected in the uterus under delayed implantation, but strong signals were present in the luminal epithelium after reinitiation of implantation.

妊娠第1-5天的腔皮和腺EP2免疫染色逐渐增强,到第6天时子宫腔皮和腺有强的免疫染色,在随后妊娠第7-9天的子宫腔逐渐降低。

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的转换荧光、转换激射和光限幅行为,通过改变染料分子共轭体系的大小,首次实现了在576nm-635nm范围内的双光子转换激光波长的调节,其中噻唑啉碘盐类二苯乙烯化合物的双光子转换激射峰(576nm)是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光;阴离子显著改变转换激射效率,但对转换荧光峰和激射峰的位置影响很小;增加溶液的浓度,转换荧光光谱和激射光谱红移,并在一定的浓度范围内,能够有效的提高转换激射效率;利用Z-扫描技术测定了染料分子的双光子吸收截面,发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓/photon,而且在较大的入射光强范围内,这类染料分子具有较大的光限幅能力,是一类作为双光子吸收光限幅材料很有潜力的染料分子。

With regard to the interior obstacles, mainly have: Many private enterprises still in"clan management"in the management structure; Inner management, anthropomorphizing in management is outstanding; In enterprises development strategic, most of the private enterprises lack of the strategic management; In talents employment , the phenomena of crony is serious; In industrial technical level , most enterprises have low ability in originality; Concerns with the competition in market, most of them lack of the core competition; in the problem of successor to enterprises, appears the crisis of handing over ; In using the resources, rough management is more serious.

从企业内部障碍来看,主要有:在企业治理结构,许多民营企业实行&家族式管理&;在企业内部管理,管理人格化现象比较突出;在企业发展战略,大多数的民营企业缺乏战略管理;在使用人才问题,任人唯亲的现象比较严重;在工业技术水平,多数企业技术创新能力较低;在参与市场竞争能力,普遍缺乏核心竞争力;在企业接班人问题,出现了权力交接的危机;在资源利用,粗放经营比较严重。

I'ma pullup purist, i do pullups, chinups, alternate grip pullups, L-pullups, kipping pullups, tabata pullups, neutral grip pullups, pullups everywhere..

我是一个拉纯粹的,我不拉,chinups,正反握拉,蜇拉,基平拉,田端拉,中立握拉,拉到处。。

Separate under the SMAS to 2.0 cm above the supraorbital edge and 1.5 cm above zygomatic arch, where the periosteum and superficial layer of deep temporal fascia were incised to expose fracture;②Separate under the SMAS to the supraorbital edge and zygomatic arch, and then as in method Ⅰ, incise at 2.0 cm above the supraorbital edge and 1.5 cm above zygomatic arch to expose fracture.③ As in method 2, separate under the SMAS to the supraorbital edge and zygomatic arch, and then incise the periosteum directly to expose fracture.

对27例面中部骨折行头皮冠状切口患者分别采用,方法Ⅰ:沿SMAS下分离至眶2cm处和颧弓1.5cm处,先在此切开骨膜和颧深筋膜浅层,分离暴露骨折;方法Ⅱ:沿SMAS下分离至眶缘和颧弓处,然后再在眶2cm和颧弓1.5cm切开直至暴露骨折;方法Ⅲ:同方法Ⅱ分离至眶缘及颧弓处并直接切开骨膜,暴露骨折。

The initial rate V0 was influenced by the ratio of molar concentration for butanol to hexanoic acid C(superscript 0 subscript ROH)/C(superscript 0 subscript HA)(at a range of 0.2-17). As C(superscript 0 subscript ROH)/C(superscript 0 subscript HA) decreases, especially when C(superscript 0 subscript ROH)/C(superscript 0 subscript HA), the V0 increases rapidly.

反应初始速率V0与正丁醇和正己酸摩尔浓度的比值C(标 0 下标 ROH/C(标 0 下标 HA)有关,在C(标 0 ROH)/C(标 0 下标 HA)=0.2-17范围内,随C(标 0 下标 ROH)/C(标 0 下标 HA)比值减小,初始速率V0增大,尤其是当C(标 0 下标 ROH)/C(标 0 下标 HA)时,V0迅速增大。

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推荐网络例句

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。

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。

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。