计算工作量

• The least traveltime ray tracing method can greatly reduce the amount of calculation for tomographic inversion and increase the accuracy for ray tracing . the important method to do the cross well seismic reflection image is xsp - cdp algorithm
  研究的最小旅行时射线追踪法可大大减少层析反演的计算工作量并提高射线追踪的精度；井间地震反射成像主要采用xsp - cdp方法。
• The primary results showed that the hybrid grid method and corresponding mathematical model are especially suitable for simulating complicated flows in forebay of pumping station , in which bottom sill , diversion wall and underwater piers were installed
  可以较好地模拟出局部区域复杂的水流流态，生成网络的计算工作量小，能非常方便地进行不同整流方案的计算比较，实用性强。
• The author also proposed the formula to calculating the factor of safety according the method is deduced . the integral method could get precise solution and simplify process of computing . some cases are calculated to testify the exactitude of the method
  通过实例计算表明分条宽度对稳定系数的计算结果是有影响的，分条宽度大，计算误差大；分条宽度小，结果精确，但计算工作量加大。
• There ' re many decision problem in the study of expressway ' s ground improvement . owing to various influential factors , a great deal of calculation and imperfect design theory , experience always plays an important part in the technical decision of ground improvement
  在高速公路软基处理中存在着大量的决策问题，对这些决策而言，其影响因素众多，计算工作量大，设计理论不完善，经验往往起重要作用。
• For the purpose of improving calculation precision and reduce workload , viscoelastic similar shape element is generated in the numerical research about crack problem , using the characteristic of similar stiffness matrix between element near crack tip
  在裂纹问题的数值研究中,为了提高计算精度、减轻计算工作量,构造了粘弹性相似界面单元,利用裂尖附近相似单元刚度阵相似的特点,采用聚缩法形成裂尖超级单元。
• " the dms is also used to calculate network distance for estimating workload in allocating assignments , and to produce fieldwork progress maps during the 13 - day operation . it also allows tagging census results to smaller geographical units to facilitate analysis , " mr li said
  李荣光说：电子地图也可以用来计算地方之间的距离，有助分派工作时计算工作量，并在十三日的统计期间以地图形式，提供实地工作进度的资料。
• The mode superposition method , based on equivalent linearization and forcing decoupling method of non - classical damping matrix of energy dissipation systems , is the just one . at the same time , iterative process will increase computing workload and forcing decoupling method increase error
  基于等效线性化的强行解耦振型分解法在一定程度上符合此要求，但此方法存在着迭代计算工作量大、强行解耦增大计算误差的不足。
• And its calculation speed is very low , the design period is very long , even it is impossible to finish some work only by manpower . moreover there will be limit designing scheme to be chosen and estimating data in the design are excessive , so that it is impossible to find the genuine best scheme . finally , the theory used in the design of the shipping power installation is mainly conventional , which can not represent the priority of the computer in the recent design field
  传统设计采用的是人工计算方法，计算工作量非常大，而且速度慢，设计周期长，有些计算甚至靠人工无法完成方案选择靠人工进行，可选方案有限，且不能自动寻优，估计量多，不可能；其次得到真正的最优方案；最后，应用的理论主要是船舶动力装置常规设计理论，无法体现出计算机在现代设计领域中的优越性。
• In these regions , an expensive high - order accurate eno scheme is applied to evaluate the numerical flux at cell boundaries . and hi smooth regions a cheap spline interpolation is used to get the value of the numerical divergence from values previously obtained on lower resolution scales to save the computational cost
  在这些奇性区域，我们利用代价昂贵的高阶基本无振荡格式计算单元边界的数值通量；而在解光滑的区域，则用廉价的样条插值根据先前低分辨尺度上得到的值来计算出其数值散度，从而减少计算工作量。
• The mainly objective includes two parts : one is to develop the mathematical m odel t o study t he flow m echanism o f 1 iquid i n t he b ed of tbr , and the other is to study the technology and device to distribute the liquid uniformly . in the first part , some theoretical models were established to simulate the distribution of flow rate of liquid , such as discrete model , differential calculus model and stochastic model . but these models are difficult to calculate or ca n ' t lead to good results
  在理论模型方面，前人提出了离散模型、微分模型和随机模型等来模拟液体的径向和轴向流率分布，但仍然存在许多问题，往往计算工作量大且常偏离实际情况，本文作者在导师的指导下，参照前人的研究成果，在滴流床的流率分布中采用了状态离散、时间离散的markov过程描述了滴流床的流率分布，结果与实验值吻合较好。