In this thesis , the studies emphasize on optimization of concurrency control algor ithms for real - time database systems 针对这些资源浪费问题，本文着重研究了实时事务并发控制算法的优化问题。
2.
Paper gives out an algorithm for seeking the set of intersection intervals . by it , the i - collede algor ithm is reduced to o ( nlogn ) 其中，提出了一种求相交线段集的算法，把原i ? collde算法时间复杂度降为o ( nlogn ) 。
3.
In order to coordinate internal force calculation in algor feas , the preceding processing program and post processing program are worked out 为了配合algorfeas的内力计算，本文还用visualbasic编制了前处理程序和后处理程序。
4.
At the mean time , algor , a famous fea program , is used to verify the results obtained by the program compiled . the results are proved to be correct 同时，学习了大型有限元程序algor ，用它分析了前述研究的箱梁，并把结果与自编程序计算的结果进行了比较，表明编制的程序计算的结果是正确的。
5.
In this paper , the practical model for calculation torsion is set up in algor feas , which is 3 - d girder element model with rigid arms . the model is better used to calculate the effect of deviation load 本文在algorfeas中建立了一种计及扭转的实用模型?带刚臂的三维梁单元模型，用此模型能较好地计及荷载偏载效应。
6.
Using large - scale current finite element software algor , the author builds 3d finite element models for the five project , and analyzes flexural , temperature deform and natural frequencies of the five guideway girder projects 运用大型通用有限元分析软件algor ，对五种可能轨道梁结构方案建立有限元空间分析模型，进行挠度、温度变形及自振特性的对比分析。
7.
In order to ascertain the character of cable - replaced bridge , in addition , the thesis calculates mode shapes and natural frequencies of the bridge using algor software and estimates the result of dynamic load test and calculation in details 为了评价换索后桥梁的工作特性，最后利用algor软件对换索后的结构进行了振型和自振频率分析，并对动载试验检测和计算成果作了详尽的分析和评价。
8.
With the help of the electronic computers , engineers employ it to figure out nearly all kinds of engineering problems ranging from astronavigation , construction , waterpower projects , ship - building and mechanical engineering etc . owing to the strong power of finite element method , one kind of software pack which based on the method is exploited and named algor feas to resolve problems on structure analysis for trusses and shells . this paper also employ algor feas software pack to analyze and compute the cableway towers , giving the accurate result on stress and displacement both in location and whole . finally , we also bring out some advice on structure improving 在此分析过程中：首先将物理模型简化为力学模型，主要是将塔架结构按空间杆单元简化为空间桁架结构，目的是将力学模型变换为数学模型；这一过程主要是利用autocad2000建立塔架的计算模型；再者，利用algorfeas软件包读入autocad建立的塔架计算模型生成初始数据卡利用计算机进行编程进行风载计算，再将计算结论整合入algorfeas产生的初始数据卡中，生成计算数据卡；接着，利用algorfeas软件包计算塔架在不同载荷情况下的应力图，位移图，并且求出在不同载荷条件下的最大位移和最大应力等；然后，对塔架的稳定性进行分析；最后；根据计算结果提出改进建议。
9.
In this paper , the geogrids structure , the flexible beams strucrure , the geogrids and flexible beams structure are analysed with algor , and it is used to analys the influence of some paramenters . such as the modulus of structural layers , size of structure , place of structure , non - uniform settlements . and the contrast of the three structures is analysed in this paper . we can see the reasonable size and reasonable place through analyse . the analyse of the test road show that the structures worked well for about two years and the reflection cracks have not be found 本文首先借助algor有限元软件对土工格栅处治结构、柔性枕梁处治结构及土工格栅与柔性枕梁复合结构进行了力学分析，包括各结构层模量影响规律分析，格栅及枕梁尺寸、位置影响规律分析，路基不均匀变形影响规律分析，各种处治结构间的对比分析等。通过分析，得出了各结构的合理尺寸及合理的布设方案。
10.
In this paper , a high performance sma system applied to steel bridge deck is put forth in allusion to the pavement project of the wuhan junshan yangtze river highway bridge . it comprises steel slab , zn coating layer , closing layer , adhesive , pre - mixed asphalt stone and dual layer sma from bottom to top . it is based on the fea results of the forces and deformation of the pavement layer by means of the algor feas , according to this bridge ' s traffic and the ambient temperature varying range of the pavement layer 本文针对武汉军山长江公路大桥钢箱梁桥面铺装工程，从铺装层环境温度变化范围、交通量等使用条件出发，在用algorfeas有限元分析软件分析铺装层受力变形基础上，提出了(即钢板+金属锌涂层+封闭层+粘接剂+预拌沥青碎石+双层sma )的高性能钢桥面sma铺装体系，并对这种sma的组成材料，包括改性沥青、集料、矿粉、纤维进行了比较研究，设计了这种sma的配合比，对sma混合料的性能进行了对比试验，对这种sma方案进行了疲劳性能研究，验证了所选择sma方案的可行性。
