for spatial calculations, nodal green ′ s function method ( ngfm) is used to determine the distribution of shape function, so the spatial mesh of iqsyn/ ngfm can be about twenty times as large as that of finite difference method.

1、

to solve the three dimensional transient problem, improved quasi static method is adopted to deal with the temporal problem, which will increase the time step as long as possible so as to decrease the number of times of space calculation.

在处理反应堆三维瞬间问题时，这种方法在时间方面采用了改进准静态方法，通过对中子通量的因式分解，放大了三维空间计算的时间步长，减少了进行空间计算的次数。

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2、

adopting the plane mesh plus parameters to form automatically a large three-dimension spatial calculation mesh and adopting spatial fault calculation mesh formed by spatial arbitrary dissection technology can solve the finite element mesh dissection in the calculation of huge underground cavern group.

采用平面网格加参数化平推方式自动形成大三维空间计算网格，同时采用空间任意切面技术形成空间平面断层计算网格，解决了巨型地下洞室群计算的有限元网格剖分问题。

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3、

the girder of parabolic arch steel bridge was compared and analyzed by the methods of plane and space calculating charts. the results showed that the internal force for girder of arch steel bridge should be calculated according to space structure;

对抛物线拱形钢桥主桁按平面计算图式和空间计算图式作对比计算分析，结果表明，拱形钢桥主桁内力应按空间结构计算；

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4、

basis on all studies of former scholars, the thesis bring forward a theory that carry the three-dimensional theory of earth pressure to the large-diameter cylinder structure and establish a whole set of calculation program at the same time.

对于土压力的空间计算理论的应用，本文在深入分析问题并吸取前人研究的基础上，首次提出将土压力的空间计算理论应用于大直径薄壳圆筒结构形式上。

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5、

considering the computational properties of 4d-var, an observation hybrid data partition algorithm is proposed according to the observation types, which effectively solves the load imbalance while calculating the observation space resulting from the randomly-distributed observations.

针对四维变分同化的计算特点，提出了基于类型的观测资料混合数据划分算法，有效地解决了由于观测资料的随机分布导致的观测空间计算负载不平衡。

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6、

considering secondary bend force of structure, 3-d fem can use 3-d elastic beam element to simulate truss members, which can accomplish actually mechanic behaviors simulation of existing continuous steel truss bridges.

空间计算模型采用空间梁单元模拟桁架桥杆件，可以考虑弯曲次内力和结构空间受力行为，能够比较真实地实现连续桥梁的工作状态模拟。

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7、

it is introduced a parallel composition testing technique based on process algebra, which can be used to test and analyze complex systems with reasonable computing time and space.

研究了基于进程代数的并行复合测试技术，其能够在合理的时间和空间计算范围内对大型复杂系统进行测试与分析，而避免了状态空间爆炸问题。

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8、

the interactions of rail, slab, support layer and bridge are taken into consideration to the longitudinal direction of track.

建立轨板桥墩一体化空间计算模型，线路纵向考虑钢轨、轨道板和底座板、桥梁等的相互作用。

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9、

method of calculating stack space of μ c/ os-ⅱ task based on tree structure and its application

基于树结构的μC/OS-Ⅱ任务栈空间计算方法及应用

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10、

definition of efficient transport rate of bed load as well as that of time step and space step.

推移质有效输沙率的确定以及时间和空间计算步长的确定原则等。

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11、

three nodal section truss segment finite element method of spatial calculation for truss girder structure

桁梁结构空间计算的三节点截面桁段有限元法

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12、

shortcut of calculation question in vector space

向量空间计算问题的捷径

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13、

space calculation analysis of continuous beam-arch bridge

连续梁拱桥空间计算分析

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14、

computational model of multi-rib wall-pannel light-weighted frame structure

密肋壁板轻框结构空间计算模型研究

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15、

the space analysis of soft soil excavation by using the rule of tse

软土深基坑考虑时空效应的空间计算分析

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16、

a plate beam element method of spatial computation for thin walled box girder

薄壁箱梁空间计算的板梁单元法

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17、

the research of coordinates calculation in calculation of space

空间计算中坐标计算的研究

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18、

comparison and analysis of models of 3d calculation of skew-beam bridges

斜交桥梁空间计算模型对比分析

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19、

by choosing appropriate two and three-dimensional mechanical models and simple effective analytical method, finite-element program "ansys" is applied to calculate and analyze the models largely in the method of simulation. in these models, material nonlinear and boundary nonlinear are considered.

通过选用合适的平面和空间计算模型、简单有效的分析方法，考虑了材料的非线性和边界条件的非线性，应用大型有限元程序ANSYS对所建模型进行了大量的模拟分析计算。

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20、

that is a novel algorithm for color similarity measurement and performed in rgb color space.

这种新的颜色相似性度量方法在RGB颜色空间计算实现。

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