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Using the fatigue equation, the fatigue performance of porous concrete and common semi-rigid base materials and cement concrete are compared, the fatigue stress coefficient which is used in the load stress calculation for porous concrete as undersurface of cement concrete pavement and the tensile strength structure coefficient which is used in the flexural stress check for porous concrete as base of asphalt pavement are obtained.

进行室内小梁弯拉疲劳试验，对疲劳试验数据进行分析，得出多孔混凝土不同失效概率下两种形式的双对数疲劳方程，利用疲劳方程，将其疲劳性能与常用半刚性基层材料和水泥混凝土进行比较，还得出了多孔混凝土作为水泥混凝土路面下面层荷载应力计算的疲劳应力系数，和作为沥青路面基层层底弯拉应力验算的抗拉强度结构系数。

The results showed that:The reductions in the shoot and root dry weights, leaf area,stern diameter of grafted plants were lower than those of ungrafted plants under the same NaCl stress.Na~+,MDA,H_2O_2 contents,O_2~- producing rate,Na~+/K~+ ratio, Na~+/Ca~(2+) ratio were lower,whereas K~+,solube sugar,shoot water content,SOD,POD, CAT,APX activity,the stability of AsA/DHA,Photosynthetic rate,transpiration rate and stomatal conductance in the leaf of grafted plants were higher than those of ungrafted plants at the same NaCl stress.Intercellular CO_2 concentration of grafted plants decreased whereas that of ungrafted plants increased significantly under salt stress.

结果表明，盐胁迫下，嫁接苗地上部和根干重、叶面积、茎粗受抑制的程度显著低于自根苗；嫁接苗叶片中Na~+、MDA、H_2O_2含量、超氧阴离子产生速率、Na~+/K~+和Na~+/Ca~(2+)比值显著低于自根苗，而叶片中K~+含量、可溶性糖含量、地上部含水量、SOD、POD、CAT、APX活性、AsA/DHA的稳定性、光合速率、蒸腾速率、气孔导度显著高于自根苗；嫁接苗的胞间CO_2浓度显著下降，自根苗的则显著上升。

Fiber Stress—Stress through a point in a part in which Stress distribution is not uniform.

纤维应力—通过应力分布不均匀的零件上的一点的应力。

Also, the conversion between counteracting force and deflection of the bridge is achieved. The study analyzes on the characteristics of the beams" stress and deformation and gets the beams" vertical fiexture stress and deflection, their rigidity rotation stress and lateral inner force caused by the beams distribution of load.

通过实测结果，得到了桥梁的支反力与挠度，箱梁桥的受力特点：包括纵向弯曲产生的竖向变位，畸变角及由畸变产生的隔板横向弯曲应力，纵向弯曲应力及箱形梁的剪力滞现象及影响因素，箱梁桥刚性转动效应和截面的歪扭情况，箱形梁在局部荷载作用的横向内力，桥面板的有效工作宽度，荷载的横向分配分析。

Results14.8% of the students of vestibule school were low stress, 68.8% of the students of vestibule school were in moderate stress, 15.7% of the students of vestibule school were high stress.

结果有14.6%的学生处于低应激水平，有69.7%的学生处于中等应激水平中，有15.6%的学生处于高度应激水平；且三组之间的SCL-90各因子差异有显著性(P.01)。

The average stress of matrix is zero, and the stress distribution be ameliorated in composite at zero stress temperature.

在零应力温度下，复合材料基体中的平均应力为零，基体中应力分布状态得到改善。

The nods and element meshes were signed out according to the geometry of every section. The geometric data was input computer and the element mesh body of cats＇ head was established in vizi CAD system. The Maximum stress,Minimum stress and yon Mises stress were calculated by Super SAP (93ed) finite elemental software when the force was loaded on right or left side of model in zero section.

方法猫头颅CT断层确定各层面节点并数字化，在有限元专用vizi CAD系统建立猫头颅三维有限元网格体模型，应用Super SAP有限元软件(93版)分析猫头半约束非撞击致伤时颅脑最大主应力、最小主应力、von Mises应力值及其在各层面的分布。

As a kind of abiotic stress, heavy metal stress may provoke stress response.

重金属胁迫作为非生物胁迫的一种可引起植物的胁迫应答。

This paper utilizes varied methods to determine the modern times direction of maximum principal stress in Baka oilfield, and makes use of hydraulic fracturing data to estimate size and distribution law for three direction principal stress, in order to try hard to reflect objectively and authentically in-situ stress conditions at present for Baka oilfield.

文章运用多种方法确定了巴喀油田现代最大主应力的方向，利用水力压裂资料估算了3个方向主应力的大小及分布规律，力图客观真实地反映出巴喀油田现今地应力的状况，并简单阐述了裂缝与古今地应力的关系及在不同开发时期的作用。

By and large, research projects undertaken by the Group fall into three categories. The first is geotechnical properties and prevention of geological hazards, with the stress on researches on dynamic properties of marine soil, coast-beach erosion and seabed failure, sediment reformation by benthonic fauna, failure of submarine pipelines, environmental geotechnical techniques, etc. The second is research on pollution and treatment of water and soil, with the stress on researches on ecological effects of exploitation activities in the marine environment, treatment of beach sediment pollution, treatment techniques of sea organism pollution, groundwater PRB treatment technique development, etc. The third is exploration of underground environment and geophysical data processing techniques, with the stress on devising equipment for detecting underground pollution and geological hazards, environmental GIS (Geographical Information System) and related analysis software, etc.

学术团队开展的研究课题大体上分三类：第一类课题是岩土体性质与灾害防治，侧重于海洋土动力特征研究，岸滩侵蚀与海床破坏研究，海洋底栖生物对沉积物改造研究，海底管线失稳研究，环境岩土工程技术研究等；第二类课题是水土污染过程与治理研究，侧重于海洋开发活动的生态环境效应研究，海滩沉积物污染治理研究，海水生物污染治理技术研究，地下水PRB治理技术开发等；第三类课题是地下环境探测技术与软件开发研究，侧重于地下环境污染与灾害探测设备的研制，环境地理信息系统，专业性应用软件的开发等。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。