对于
- 与 对于 相关的网络例句 [注:此内容来源于网络,仅供参考]
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There are series of papers studying the solvability of an incompressible, viscous, instationary fluid contained in a domian bounded entirely by a free surface. In 1977, Solonnikov proved its local solvability in a Holder space for any initial date but without surface tension. In 1984, he considered the same problem in a Sobolev space with surface tension being taken into account. In I992, Mogilevskii and Solonnikov treated the same problem in a Holder space, where the coefficient of surface tension is not a constant. There are also short-time existence results for the solvability of an incompressible, vicous, unsteady fluid bounded above by a free surface and below by a fixed bottom which approach horizontal planes at infinity. In 1981, Beale proved its local solvability in a Sobolev space for any initial date but without surface tension. In 1983, Allain were concerned with the same problem in R〓 with surface tension but under the assumption that the initial fluid domain was near a horizontal strip. In 1987, he obtained the same result without the preceding assumption. In 1996, Tani solved the same problem in R with surface tension. For the solvability of an incompressible viscous instationary fluid in Ω R bounded inside by a free surface S and outside by a rotating boundary S, in 1995 Ciuperca proved its local existence in a Sobolev space for any initial date but without surface tension. In this paper, we consider the same problem with surface tension.
对于边界完全是由自由边界组成的有界区域中粘性不可压流体的非定常运动问题,Solonnikcv于1977年在忽略表面张力情况下证明了初值问题小时间解在Holder空间的存在性,于1984年在有表面张力情况下证明了初值问题问题小时间解在Sobolev空间的存在性,Mogilevskii和Solonnikov于1992年在表面张力系数可以不是常数情况下证明了初值问题小时间解在Holder空间的存在性;对于上面是自由边界、下面是固定边界且两边界在无限处趋于水平的无限区域中粘性不可压流体的非定常运动问题,Beale于1981年在忽略表面张力情况下证明了初值问题小时间解在Sobolev空间的存在性,Allain于1983年在有表面张力情况下证明了R中初值问题小时间解在Sobolev空间的存在性,但其中假定初始区域近似是个水平条,他于1987年去掉了这个假定得到同样的结果,Tani于1996年在有表面张力情况下证明了R中初值问题小时间解在Sobolev空间的存在性;对于R中内面是自由边界、外面是旋转边界S的有界区域中粘性不可压流体的非定常运动问题,Ciuperca于1995年在忽略表面张力情况下证明了初值问题小时间解在Sobolev空间的存在性,本文考虑了在有表面张力情况下初值问题可解性问题。
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By metaphorically invoking the photographic terminology in the spirit of Bergsonian / Deleuzian time-movement interpretation as inspiration, the exhibition Timelapse in which a dozen artists from both Switzerland and China will participate, attempts to examine the fundamental constituent of digital media: the concept of time and its embodiment in space, its evocation of passage and memory, its movement of differentiation and its state of representation in diverse formal grammars to reveal the social implications of the fast in the disguise of the slow, the multiplicity in temporality and disparity in spatiality, both psychologically and geographically, stirring up a desire to scrutinize the nuances and ramifications in regards to the construct of cultural being in the disparate framework of time in distance and space in locality and the potential collapse of such time-space duality.
本次展览以柏格森以及德卢兹( Deleuze,均为法国哲学家)有关时间-运动的解释为契机,含蓄地缓引"延时"这一摄影术语,在瑞士和中国两国艺术家的参与中,试图检验数字媒体的根本构成因数,及时间的概念以及其在空间中的体现,其对于过程和记忆的启示,其运动所产生的差异,以及其在运用形式语言时所呈现的不同表象,从而揭示被缓慢所遮掩的亟速之社会内蕴,其在时空中之心理与地理间的多样化和差异性,激起我们对于细察在不同的时空概念的框架下文化的构建,以及对于这种时空二元性之崩溃的可能性的欲念。
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As for the acknowledgement of the modern Chinese semi-colonial, semi-feudal society"s characteristics ,Zhou en-lai stated very deeply and much earlier than Mao ze-dong .the Chinese revolution is that the bourgeois democratic revolution leading by the Chinese communist party and the revolution should be subdivided into "two steps", which Zhou en-lai stated clearly in the first cooperation of the KMT and CP ;while on the Chinese revolution"s motivation problems during Zhou"s early travel of Europe, he divided 5 revolution motivations ,and later clearly pointed out the revolution"s dependent power is workers, peasants, the small capitalist class and the national bourgeoise.
他对于近代中国的半殖民地半封建社会性质的认识,早于毛泽东且论述非常深刻;对于近代中国革命是中国共产党领导的资产阶级民主革命和革命要分"两步走"步骤,周恩来在第一次国共合作时期就已有明确论述;而关于中国革命的动力问题,周恩来早在旅欧时期,就划分了五派革命动力,以后又清楚地指出工人、农民、小资产阶级和民族资产阶级是革命的依靠力量;对于帝国主义列强、新旧军阀、封建余孽和买办官僚,是中国革命的对象问题,周恩来在1924年的《革命救国论》中就已经解决了;中国革命的领导权必须掌握在无产阶级及其政党中国共产党的手里,这一认识周恩来也是很早且非常坚定的。
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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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According to this, we devise the effective business model of chain store service.
通过本文的介绍与论证,能够使您对于数字印刷服务市场的现状能够有一个清晰的认识,另外对于商业模式的设计与论证能够使您对于参与数字印刷服务市场的竞争提供有益的参考。
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Obconica were always higher than that of P. vulgaris. In the experiments of medicament treatment Membership Function was introduced to have a comprehensive evaluation on heat-resistance of P. obconica and P. vulgaris under five levels of fixed temperature. The results were as follows: P. obconica 30℃: The compages of SA 150 mg·L~(-1 and CaCl_21500 mg·L~(-1 can increase plant"s heat-resistance observably. 32℃: Using SA only 200 mg·L~(-1 can increase plant"s heat-resistance observably.34℃: The compages of SA 50mg·L~(-1 and CaCl_21500 mg·L~(-1 can increase plant"s heat-resistance observably.36℃: The compages of SA 50 mg·L~(-1 and CaCl_22000 mg·L~(-1 can increase plant"s heat-resistance observably.38℃: The compages of SA 150 mg·L~(-1 and CaCl_21000 mg·L~(-1 can increase plants heat-resistance observably.
运用隶属函数法对经过药物处理的两种报春进行综合评价,得出五个温度条件下各处理间耐热性的强弱,四季报春:30℃:150 mg·L~(-1)的SA和1 500 mg·L~(-1)的CaCl_2的组合对于提高四季报春的耐热性最好,其次是100 mg·L~(-1)的SA和1000 mg·L~(-1)的CaCl_2的组合处理;32℃:单一施用200 mg·L~(-1)的SA达到了最好的效果,其次是施用100 mg·L~(-1)的SA和1500 mg·L~(-1)的CaCl_2的组合,效果最弱的是单一施用500 mg·L~(-1)的CaCl_2;34℃:混合施用50 mg·L~(-1)的SA和1500 mg·L~(-1)的CaCl_2对于提高四季报春的耐热性效果最好;36 ℃:混合施用50 mg·L~(-1)的SA和2000 mg·L~(-1)的CaCl_2对于四季报春耐热性的提高效果最好,而单一施用100 mg·L~(-1)的SA的效果最弱;38℃:150 mg·L~(-1)的SA和1000 mg·L~(-1)的CaCl_2混合施用能有效提高四季报春的耐热性。
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Based on a lot of experiment results, a conclusion is drawn: comparing with other factors, the performance of branch handling strategy is the key limits of processor to exploit the instruction level parallelism existed in nonscientific code, cache miss have severe effect on superscalar processor's performance when it runs scientific code. Second, in order to reduce the branch penalty and improve the performance of superscalar processor, a new branch handling strategy—a classification based hierarchical branch handling strategy, CHBHS is proposed. It first expands the traditional processor architecture to support multiple condition code, conditional execution and Mbranch instruction, as a result, compiler can reduce the number of static conditional branch when the code is generated. Then, CHBHS tries to use the best suitable mechanism to deal with different branch base on their different behavior. CHBHS can predict the target address of unconditional branch, subroutine call and conditional branch by buffering their target address in branch target buffer, a newly proposed high efficient return address stack is used to reduce the penalty of subroutine return instruction, a new Counter Register Stack is also proposed to reduce the penalty of loop-closing branch to zero, and dynamic branch predictor is incorporate with branch target buffer to predict the outcome of conditional branch.
基于上述结论,为了尽量消除转移指令对处理器开发指令级并行性能力的影响,进一步提高处理器性能,在详尽分析目前已存在的转移处理策略的特点与局限性的基础上,首次提出了一种新的转移处理策略即基于分类的层次转移处理策略CHBHS(Classification Based Hierarchical Branch Handling Strategy),它首先通过扩展传统的体系结构,支持多条件码、条件式执行及多分支转移技术,以使编译程序在进行代码生成时可尽量少生成条件转移指令,从而减少静态条件转移指令的数目;其次,基于不同的转移指令的行为不同这一事实,提出了对不同的转移指令采用不同的机制进行处理的思想,即对无条件转移指令和函数调用指令以及条件转移指令的目标地址,采用转移目标缓冲器来预测,对于函数返回指令,采用所提出一种的高效返回地址栈来预测其目标地址,对于大多数循环控制转移指令,采用所提出的Counter Register Stack来将其所可能带来的损失减少为0,对于其他的条件转移指令采用动态预测机制来预测其方向。
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Efficacy: DCE anti-acne constringing toner contains tea tree oil, dandelion, red sage root, honeysuckle, forsythia, salvia and other precious natural herbal extracts. It can efficiently and speedily break down grease, and penetrate into pores to prevent acnes exacerbating, constringe pores and control oiliness. Skins with occasional acnes will find acnes disappear in several days after using this product; while skins harassed with regular tough acnes will radically get rid of this trouble if a whole bottle of toner is used. And one or two bottles of this product are enough for skins with new acnes, recrudescent acnes, prosperous acnes or tough acne roots.
功能: DCE痘痘清精华水含茶树油、蒲公英、丹参、连翘、金银花、鼠尾草等多种天然名贵草本植物萃取精华;具有强力、速效的皮脂分解力,通过分解过剩皮脂、深入毛孔内防止青春痘恶化,紧致毛孔,抑制油腻;对于偶尔长痘的皮肤,使用本品后,大多数人在几天内即可消除;对于长期肆虐脸部的顽固痘,一般使用一盒即可消除根,并且可以防痘痘再生;对于新生痘,旧痘反复发作,满面痘痘,痘根的肌肤一般使用一至两盒即可除尽。
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For crack-up but speech, the 康健 is beautiful;for lazy but speech, the hard-working is beautiful;for false but speech, the sincerity is beautiful;for brutish but speech, the docile is beautiful.
对于衰弱而言,康健是美;对于懒惰而言,勤勉是美;对于虚伪而言,真诚是美;对于凶恶而言,善良是美。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。