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Using the information from exploratory adit can class rock mass structure, drawing lessons from internal successful experiences in rock mass quality and weathering zone classification, dam abutment rock mass is classed by choosing quantization indices of rock mass structure, the outcome same as investigation, accord with commonly geoloical rule. Using the information from slope image can finish stability analysis of lithologic slope, get 3-D cutaway view and date, it is important datum for research engineering geoloical condition of dam abutment rock mass.

利用勘探平洞洞壁图片采集的结构面信息处理成坝肩岩体结构研究的基本量化指标及实体模型,进行拉西瓦水电站坝肩岩体结构类型划分,并借鉴国内岩体风化分带、岩体质量分级规范,以岩体结构量化指标作为风化分带和质量分级的主要指标,划分两岸坝肩岩体风化分带、岩体质量分级,划分结果与野外现场判定及地质师室内划分结果相符合;利用边坡图片解译结果完成了坝肩岩体抗滑稳定边界条件分析,及不稳定块体的量化值和三维展示图,为坝肩工程地质条件评价提供重要资料。

A tetrahedral mesh with up to somehundred thousands nodes can be generated within hours with a personal computer.. By using the general harmonic mean of heat conduction coefficient, a new discretization method in the unstructured grid with anisotropic and heterogeneous media is developed.

生成的网格可以按照给定的纵横比实现剖分(纵横比可高达2000),这样就克服了非结构网格难于在粘性支层内使用的缺点;给出了切平面测度和主曲率测度矩阵的建立方法,结合各向异性网格生成技术,实现了三维空间曲面剖分,为三维实体剖分做了准备。

By investigating Newton\'s Problem of the Solid of Least Resistance,John Bernoulli\'s Brachystochrone Problem and Jacob Bernoulli\'s Isoperimetric Problem, the physics and Calculus background of the calculus of variations is illustrated,the fundamental thought together with the patterns of solutions are summarized,and the ideas and the interaction of the pioneers,such as the Bernoullis and B.

通过考察牛顿最小阻力体问题、约翰·伯努利最速降线问题和雅可布·伯努利等周问题等问题的提出过程及解决方法,深入探究了变分法诞生的深刻背景,提炼和概括出了伯努利兄弟和泰勒等先驱者解决变分问题的基本思想和求解模式,追溯了其微积分渊源,并分析了三位先驱(来源:ABCbc论文64网www.abclunwen.com)者之间的变分法思想传承及相互影响。3。

In this paper,we give the error expressions of piecewise linear Lagrange polynomial interpolation and piecewise cubic polynomial interpolation using the Taylor expansions.

中文摘要:本文利用Taylor展开得到三角形上线性Lagrange插值和三次Lagrange插值的导数余项公式,对这些余项公式进行分析,给出了两类能以四阶精度逼近被插函数在对称点的导数值的格式,一种是在均匀剖分时其分片线性插值的相邻单元的导数值的后处理格式,一种是在六片强正规剖分时的三次插值在对称点上的导数值的后处理格式,使得在已知原函数在各节点的值后,通过一个简单的线性计算就可得到原函数在对称点的导数的一个超逼近值,将以往提出的平均导数的二阶精度提高到四阶。

The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the mold's joint face is the ball's neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the casting's feeding;the mold use gravity to lockwasher itself;the core's material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the mold's processing technology,this design adopt the rough's two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three-dimensional animation.

本次设计的群铸模具采用一模六腔形式,生产效率高;模具分型面选择磨球的中性面,使得分模方便;浇注系统采用浇冒口一体形式和集渣包设计,保证了良好的加工工艺和补缩;锁模方式为重力锁模;砂芯采用石英砂,并在表层涂以耐高温涂料;芯盒导套选择一定的锥度,使取模容易;芯盒镶块运用数控加工,降低了生产成本;分度胎具保证了同种规格模具具有良好的互换性,而且因为所有加工基本都可以在普通机床上完成,生产成本低,可以为中小型企业普遍采用;在加工工艺编制过程中,采用两端面互为基准,球腔用专业夹具加工;Autocad,Pro/e分别制作了模具的二维和三维立体图,并运用Pro/e制作了三维动画演示。

The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the molds joint face is the balls neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the castings feeding;the mold use gravity to lockwasher itself;the cores material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the molds processing technology,this design adopt the roughs two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three.dimensional animation.

本次设计的群铸模具采用一模六腔形式,生产效率高;模具分型面选择磨球的中性面,使得分模方便;浇注系统采用浇冒口一体形式和集渣包设计,保证了良好的加工工艺和补缩;锁模方式为重力锁模;砂芯采用石英砂,并在表层涂以耐高温涂料;芯盒导套选择一定的锥度,使取模容易;芯盒镶块运用数控加工,降低了生产成本;分度胎具保证了同种规格模具具有良好的互换性,而且因为所有加工基本都可以在普通机床上完成,生产成本低,可以为中小型企业普遍采用;在加工工艺编制过程中,采用两端面互为基准,球腔用专业夹具加工;Autocad,Pro/e分别制作了模具的二维和三维立体图,并运用Pro/e制作了三维动画演示。

The metal mold design nowadopt a form of one mole but six cayities ,this way can improve theefficiency;the mold's joint face is theball's neutral plane,that makes the mold openedconvenient;In the gating,the runner and the riser is the same ,andthis design adopt scum riser,that make sure a better routing andmake sure the casting's feeding;the mold usegravity to lockwasher itself;the core's materialis quartz sand,and spread high tempearature resistant dope on it;Inthe design, same taper in the guide bush of the core box is neededto make sure open the mold easily;The insert blocks of the core boxare made by numercial control processing,this way reduce the costof production; the scale division positioner make sure the samespecification has better interchangeability,also,as all themachining can be finished on the general machine tool,it make thecost low,so it can be spreaded abundant in the medium and minorenterprise;when workout the mold's processingtechnology,this design adopt the rough's two endplane as benchmark,the ball cavities are machined by scale divisionpositioner;then use Autocad,Pro/e to draw planar and threedimension blueprint,use Pro/e to make three-dimensionalanimation.

本次设计的群铸模具采用一模六腔形式,生产效率高;模具分型面选择磨球的中性面,使得分模方便;浇注系统采用浇冒口一体形式和集渣包设计,保证了良好的加工工艺和补缩;锁模方式为重力锁模;砂芯采用石英砂,并在表层涂以耐高温涂料;芯盒导套选择一定的锥度,使取模容易;芯盒镶块运用数控加工,降低了生产成本;分度胎具保证了同种规格模具具有良好的互换性,而且因为所有加工基本都可以在普通机床上完成,生产成本低,可以为中小型企业普遍采用;在加工工艺编制过程中,采用两端面互为基准,球腔用专业夹具加工;Autocad,Pro/e分别制作了模具的二维和三维立体图,并运用Pro/e制作了三维动画演示。

Ron Villone allowed a run on a wild pitch in the seventh, but Chamberlain was spectacular in the eighth, striking out two on the way to retiring the side uneventfully.

P 在小王於第七局被换下场之后,就把比赛交给牛棚来搞定,虽然Ron Villone因为暴投在第七局丢掉一分,但是Chamberlain则在第八局有了华丽的演出,三振掉两人,使对方三上三下结束该局。

After Wang was pulled in the seventh, that left it up to the bullpen to close it out. Ron Villone allowed a run on a wild pitch in the seventh, but Chamberlain was spectacular in the eighth, striking out two on the way to retiring the side uneventfully.

W- s4 f/ f; O0 h; Z1 T王建民加油站在小王於第七局被换下场之后,就把比赛交给牛棚来搞定,虽然Ron Villone因为暴投在第七局丢掉一分,但是Chamberlain则在第八局有了华丽的演出,三振掉两人,使对方三上三下结束该局。

The algorithm splits the original image to some blockes and do DCT transform,chooses three low-frequency coefficients in every block,quantizes them and chooses the least significance bits,then does the xor operations with the corresponding bits of water mark.,the result is the key.At the same time,we choose three high-frequency,and do the same operation and generate the other key.

该方法对原始图像进行分块DCT变换,每块取三个DCT低频系数,把这三个系数量化后取最低有效位,与水印的对应位进行异或运算得到密钥;再取三个高频系数进行异或等运算得到另一密钥。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

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