作用区

To get calculation process of analytical solution for predicting the shape of ground arch in bearing soil by studying the theoretical solution for Calculating the shape of ground arch in free soil and Considering the effect of load.

并在此基础上给出了土体中不利于作用荷载的区域，在此区域内作用荷载将会引起隧道周边及荷载作用位置处的塑性区范围显著增加。

Wind action should be primarily influenced on the open shore segment and aerial-marine shore segment, and it's sensitive for the response of the processes of the shadow shore segment to the tide action.

弧形海岸过程的动力机理通过对南湾海滩近岸的动力作用分析表明：1）波浪动力是影响华南弧形海岸过程的决定性因子，近岸海区的波浪场与海滩场具有明显的相关区，关键区主要位于海滩的中间岸段及其海区的近岸带和海湾上、下岬角连线的邻近区域。2）风应力及其潮汐是影响整个华南弧形海岸时空变化过程的重要动力因子，其中，风应力主要偏重于对海滩开敞岸段及其水上岸段的影响，遮蔽岸段的海滩过程对潮汐动力作用的响应较为敏感。3）台风大浪及其冬季冷空气南下导致的动力作用加强是海滩过程急遽变化的重要因子。

Puzzlingly, such effect is transient and depression is usually reinstated after the first episode of recovery sleep, or even after short naps .

睡眠剥夺可能通过改变5-羟色胺(serotonin 5-HT)系统起作用，5-HT_(1A)受体作为突触前的自身受体在调节中缝核5-HT神经元的活性中发挥着关键作用，并且作为突触后受体介导5-HT对边缘系统、皮层、下丘脑及其它一些脑区部位的作用，使得5-HT_(1A)受体的调节对于精神疾病非常重要。

This project was conducted starting with the three interrelated subjects the structural characteristics of desertification landscapes in different bioclimatic zones, desertification driving factors and their function mechanism, and the dynamic model of landscape space for the occurrence and development of desertification in representative desertification regions and on the basis of in-depth studies of the relations between landscape structural characteristics and processes of desertification and their stability; the driving force of different time-space scales of desertification and their proportion, manifestation form, and action mechanism in the desertification processes; and the establishment of threshold conditions for the surface wind erosion and has achieved important progress in the definition of desertification conception

本课题从三个相互联系的专题（即不同生物气候区荒漠化景观的结构特征、荒漠化驱动因素及其作用机理、典型荒漠化地区荒漠化发生与发展的景观空间动力学模型）入手，在深入研究荒漠化景观结构特征与过程的关系及其稳定性，不同时空尺度的荒漠化过程驱动力及其在荒漠化过程中所占比重、表现形式及作用机制，地表风蚀临界条件的确定等内容的基础上，虽未建立荒漠化景观空间动力学模型，但在沙漠化概念，末次间冰期以来沙漠化过程时间序列和特征冷暖时期沙漠、沙地空间分布格局，现代沙漠化过程中自然因素和人文因素的作用、贡献率、沙漠化土地对气候的反馈作用以及风蚀临界值，沙粒跃移轨迹参数和能量分布，我国沙漠化防治思路和对策，沙尘暴区划和沙尘暴指数等方面取得了重要进展。

The expression of Bcl-2mRNA and P53mRNA in hippocampus after 16Hz, 130dB infrasound treatment In 1 day group, Bcl-2mRNA and P53mRNA were expressed lightly in CA1-CA3 areas in hippocampus and dentate gyrus. Blood vessels dilated lightly. In 7d group, Bcl-2mRNA and P53mRNA were more expressed in areas mentioned above. Dilation of capillaries and small vessels was more obvious. Bcl-2mRNA and P53mRNA were strong positive in endothelial cells of vessels. In 14d group, Bcl-2mRNA and P53mRNA expression was obviously increased in pyramidal cells of hippocampus and granular cells of dentate gyrus, showing deep blue staining. a The endothelial cells in some vessels were also strong positive for Bcl-2mRNA and P53mRNA. Dilation of capillaries and small vessels was lessened. In 21d group, Bcl-2mRNA and P53mRNA expression was decreased in pyramidal cells. In 28d group, little change about the expression and distribution of Bcl-2mRNA and P53mRNA was observed. Lots of Bcl-2mRNA and P53mRNA were scattered in cortex of temporal lobe around hippocampus and callosal gyrus area. Dilation of capillaries and small vessels was lessened obviously. The expression of Bcl-2mRNA and P53mRNA in hippocampus after 16Hz, 90dB infrasound treatment.

次声作用后Bcl-2mRNA和P53mRNA在海马的表达，16Hz、130dB次声作用1d组：两者在海马〓区和齿状回轻度表达，海马内血管轻度扩张；7d组：两者表达在上述区域较1d增多，微血管和小血管扩张较显，血管内皮细胞内可见呈强阳性表达的Bcl-2mRNA和P53mRNA；14d组：海马锥体细胞和齿状回颗粒细胞内Bcl-2mRNA和P53mRNA阳性表达明显增多，呈深兰色，在部分血管内皮细胞内两者强阳性表达，微小血管扩张状态较7d减轻；21d组：锥体细胞胞浆内Bcl-2mRNA和P53mRNA表达减弱；28d组：上述表达及分布与21d组相比无明显改变，海马周围颞叶皮层和扣带回区域亦可见大量散在分布的Bcl-2mRNA和P53mRNA表达，血管扩张状态已明显减轻。90dB次声作用1d-7d后，较对照组无明显变化，14d-21d后轻度表达，28d后，Bcl-2mRNA和P53mRNA表达较强。

The circular centrifugal flotation cell has many originalities on the pulp aeration, air bubble mineralization, air pulp flow format in the ring shaped tank of the cell, feed method ect, due to the results of fluidics and turbulence and the action of centrifugal and gravitational force ect.

新型高效圆形离心浮选机充分发挥了湍流射流及离心—重力力场的作用，使其在矿浆充气、气泡矿化、浮选槽内矿浆流动形式、给料方式等方面独具特色。在普通喷动床环形区底部引入&充气&可消除环形区底部颗粒&死区&的影响，并能改善环形区气固间的热、质传递。

Home position shear tests of slope rock, point loading tests and indoor AMD simulation action tests in XingQiao concave slope had show shearing strength and coherence between body layers of quartz sandstone decrease by 13.2%~21.3% after attacked by AMD, the angle of internal friction between layers is decreased by 5.0%~7.5%, in general, AMD affects the rocks mechanical property at range of 60~100m interior the perpendicular slop. Data analysis shows: 1 The actions to slope are major focused on zone of weakness, shearing strength of slope foot and AMD centre are reduced by 52% and 64.7% separately. 2 The explosion stress wave of long distance field has obviously increasing influence to disturbance amplitude value of slope with increasing of the slope height and distance, the response of the top of slope and fault region are obvious as well as damage effect; the foot of slope is with smallest disturbance amplitude value, the disturbance amplitude value of the step close to free face is obviously bigger than the interior of slope. 3 With the coupling effect of the AMD and explosion loading, the stress distribution inside of slope mainly presents characters of explosion stress field; the area affected by AMD becomes a weak area of shearing stress.

新桥深凹露天矿边坡岩体的原位剪切试验、点载荷试验、室内模拟AMD作用试验表明：AMD蚀化后的石英砂岩，岩体层面间的抗剪强度和粘聚力减小的幅值约为13.2%~21.3%；层面间内摩擦角减小幅值在5.0%~7.5%之间；AMD一般影响垂直边坡体内部在60~100m范围内的岩体力学性质数值分析表明：AMD对边坡体的作用主要集中在弱化区域内，边坡体的底脚和AMD作用中心区域的剪切应力减少了52.0%和64.7%；(2)随着边坡体高度和距离的增加，远场爆炸应力波对边坡扰动幅值的增加趋势明显，边坡顶部和断层部位的响应突出，损伤效应明显；边坡底脚扰动幅值最小，临空面附近台阶的扰动幅值明显大于边坡体内部；(3)AMD与爆破荷载耦合作用后，边坡体内部的应力分布主要呈现出爆炸应力场的特征，AMD影响区域形成了一个剪切应力弱区。

The study shows that the bulk subsoil can increase the rate of infiltration greatly and improve the physical structure of soil and decrease the amount of water distribution along the slope again. Further more, the growth of Caragana in area that was subsoiled increased 50.15% compare to contrast region. This paper suggests that the technology of bulk subsoil should be spread in arid region and semi-arid region as well as bess plateau.

结果表明，全方位深松技术可以明显的提高土壤入渗性能，改善土壤物理结构，减少水分沿坡面的二次分配，间接起到消减坡度的作用；经过全方位深松处理的柠条林地的土壤入渗效果也有明显的提高，改善了林地的水分条件，从而促进了柠条的生长，试验期间内对照区柠条最大生长量为12cm，平均增长量为5.17cm，深松区最大生长量也为12cm，但平均增长量8.28cm，比对照区要高50.15％。

This paper has analysed the range of the sound of shadow areas of the embankment, and has proposed the judgement formula that decide whether the momtored point is in the sound shadow areas of the embankment or in the sound shining areas. Finally, the paper gives the revision method of the monitor value when the monitored point is in in the sound shining areas of the embankment.

本文分析了路堤屏障作用的范围，提出监测点在声影区还是在声照区的判断公式，并提出了监测点在声影区时对监测值的修正方法。

Chan and D.O. Shah, in which Klearfac AA-270 was used. OPP-n shwwed broadening effects for crude oil/ASP systems. OPP-10 can be conveniently used at high salinity, while OPP-4 used at ...

对克拉玛依原油／ASP复合体系，亦有展宽作用，OPP－10使界面张力向高盐度区单调下降，而OPP－4可使低张力区在较低盐度区展宽。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。