体积积分

Holds true whenever the diameter of the largest subregion is less than, then A is said to be the triple integral of function over the region ,written

任给， 存在，对的任意一个分法，设小区域为，它们的体积用表示，在每个中任取一点，当小区域的最大直径小于时，不等式成立，则成为在D上的三重积分，记作，或。

Control Volume Analysis, Integral Methods.

控制体积分析，积分方法。

A negative correlation was found between the change of proximal gastric volume and integral alleviation of dyspepsia symptom in patients with chronic gastritis.

慢性胃炎患者近端胃的体积变化与消化不良症状积分缓解之间呈显著负相关关系。

METHODS: The shape of the human ankle plantar flexor muscle was estimated in vivo by CT, and the cross-sectional area of the muscle and the circumference of the lower leg could be calculated by Xiphoid CT software.

采用螺旋CT对受试对象双侧小腿进行不间断连续扫描，影像分析采用Xiphoid CT专用图像分析软件，由CT图像计算得出小腿围、踝关节跖屈肌横截面积，根据体视学原理采用数值积分法计算跖屈肌群体积。

In this paper , we consider the Expanded Mixed Finite Element Method and mixed covolume method for the quasilinear parabolic integro-differential equation and quasilinear parabolic problem.

本文中我们采用扩展混合有限元方法和混合体积元方法数值模拟了二阶拟线性抛物型积分微分方程和二阶拟线性抛物问题。

Research results indicate that continuous Regional Identification Function is used in nodal virtual flux method, volumn integral and surface integral enhances the convergence and stabilization;using 'put a big number' to deal with the first boundary is faster than 'Remove row and column', the more the first boundary nodes are the more obvious advantage will display;PCG method is quite faster than Crout method to solve equations;it is reliable to use three-dimensional finite element simulation theories to simulate and predict deep foundation pit dewatering in such areas.

研究结果表明，在结点虚流量法及计算体积分和面积分时引入连续的区域识别函数增强了解的收敛性和稳定性；处理已知水头边界的&置大数&法在时间上要比&去行去列&法短一些，定水头边界节点越多，其优越性表现越明显；PCG法比直接解法快很多；三维有限元数值模拟理论用于模拟预测此类地区的深基坑降水具有较高的可信度。

Results Among the three groups,the children's rib cartilage had the most blood vessels,the most chondrocytes,well-distributed stain of matrixes,and the type Ⅱ collagen was expressed actively and highest in photedensity.The rib cartilage of teenager group had less blood vessels,unhomogeny distributed stain of matrixes,the enlarged and separated cartilage lacunas.The rib cartilage in adult group showed the least blood vessels,the least chondrocytes.the hyalinization of perichondium,the most deposition of calcium salt,and the type II collagen was expressed at the lowest level in photodensity.

结果 儿童组肋软骨膜血管最丰富，软骨基质染色均匀，软骨细胞数目最多，Ⅱ型胶原蛋白表达最活跃，平均积分光密度值最高；青少年组软骨膜内血管减少，软骨基质染色出现明显的不均质状，软骨陷窝体积变大，并呈分隔状，陷窝内软骨细胞数目减少，II型胶原蛋白表达较儿童组减弱；成人组软骨膜血管、细胞成分明显减少，软骨膜内的纤维成分明显玻璃样变，钙盐沉积较青少年组时明显增多，Ⅱ型胶原蛋白表达较青少年组减弱。

The regurgitant volume was calculated by temporally integrating the instantaneous flow volume rate of each frame during systole.

建立了基于经食道旋转扫描二维和经胸实时三维超声多普勒血流图像获取方法和图像插值、配准算法获得体数据，经多维重建描述二尖瓣反流速度的空间分布，立体观察返流的时相、方向、反流束长度、面积、体积、空间传播和严重程度等；通过重建反流后的速度场，从血流动力学角度分析了二尖瓣反流的性质，计算偏心反流束的湍流强度，利用反流束角度和湍流强度对计算结果进行修正；基于实时三维彩色多普勒成像技术，利用控制体原理对二尖瓣反流束在反流瓣口横断面的速度分布进行空间与时间积分获得二尖瓣偏心性反流的每搏反流量。

Golikov as the general and single-valued criterion for evaluating the acoustics of rooms and auditori- ums have been critically examined,with detailed discussionsconcerning:(1) the empirical foundation of the articulation-Q"functional relationship A= f,(2)the derivation of the"particular criterion"or the optimum re- verberation condition form Q",(3)the meaning of a time integration of the "noise-interference factoras viewed from the theorey of auditory perce- ption...

主要内容有：(1)以在不同的条件(如语言、测试人员、宣读方式以及声学场所等)之下的清晰度测验结果来验证 A=f函数的适用性，(2)判断了从Q&来推求以体积为参数的最佳混响时间的可能性，(3)，从听觉理论来讨论&混响干扰因子&对时间积分的意义，(4)讨论了原作者对&噪声因子&的看法，指出了&噪声因子&定义中的一些值得存疑之处。

Experiment 4: With increasing frequencies, the integrals of pressure changes inside chamber were becoming lower.

而且，当流量变化为时间的不同函数时，体积描记箱内压力积分也将不同。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。