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The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5~6倍的平均粒径,首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性,发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化,通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分,观测到接触面受剪时表现出明显的相对法向位移,并可分解为可逆性和不可逆性两个分量;(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型,并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性;(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析,比较了不同接触面本构模型对计算结果的影响,证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性,还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

Pokeweed antiviral protein belongs to Ribosome-inactive Proteins. PAP has potent antiviral activity against many plant virus. pT1 was used as the template to amplify the deleted mutant PAP gene (N-deleted and N-,C-deIeted) by PCR and then the two genes were cloned into expression vector. Different IPTG-inducible expression vector containing different deleted mutant PAP gene was constructed and transferred into E.coli strain BL21 (DE3)-plysS.

美洲商陆抗病毒蛋白是一类能很好的抑制植物病毒的蛋白,很早就有报道低剂量的商陆叶片粗粉末就能明显的抑制TMV在菜豆叶片上局部枯斑的形成,PAP缓释剂也已用于病毒病的防治工作,但美洲商陆抗病毒蛋白属于核糖体失活蛋白,它对生长的细胞会有一定的毒性。

There were portal collateral vessels around the main portal vein in 8 patients and among them, there was 1 patient with the varix of gallbladder wall, 2 with gastroepiploic varix, 1 with varix on the bile duct wall, 1 with open of the retroperitoneal-paravertebral vein and the splenorenal vein, and 1 with open of the retroperitoneal-paravertebral vein.

结果 在门脉闭塞后,引起相应血管的纡曲扩张及侧支血管的形成,其中有门脉周围形成门-门侧支循环,胆囊壁静脉的曲张,胃网膜静脉的增粗纡曲,胆管壁静脉的纡曲扩张,腹膜后椎体旁侧支血管的开放,脾-肾静脉短路的开放,胃底食管静脉的曲张。

While the tissue spaces surrounding a few blood vessels wasAl and Fg positive,no Al or Fg positive cells were observed.In antemortem injurygroup,diffuse subarachnoid hemorrhage,cerebral edema,swelling or pyknotic neu-rons could be observed.The axons showed irregular swelling and disconnection at1~3h,marked swelling and disconnection at 6h,and retraction ball at 15h whichwas more remarkable at 24h after injury.The space between myelin sheaths andaxons was increased at 3~6h after injury.Tortuous and wavelike myelin sheathswhich adhered on axons incompletely,or even peeled off could be found from 15hto 24h after injury.Perinuclear lysis of Nissl bodies began at 24h after injury.Thenumber of GFAP positive cells in cerebrum and brain-stem increased significantlyfollowed by decrease,and then increased again,but the time courses of the changesin different areas of brain were not same.Al and Fg positive neural cells,mainlysurrounded blood vessels,with diffuse or peripherally distributed positive matter incytoplasm could be observed at 0.5h after injury.The number of Al or Fg positivecells and the intensity of immunoreaction increased with the time of injury.The areaof SYN positivity in medulla oblongata and pons decreased notably 3~6h afterinjury,then return to normal levels and continued to 24h after injury.

生前损伤组,可见广泛蛛网膜下腔出血,脑组织水肿,神经细胞肿胀,晚期神经元固缩;伤后1~3h见部分神经轴突不规则增粗、断裂,伤后6h断端膨大,伤后15h可见收缩球,至伤后24h更为明显;伤后3~6h可见部分神经髓鞘与轴突之间的间隙增宽,伤后15h髓鞘明显曲折,不完全附着在轴突两侧,甚至剥脱,持续到伤后24h;核周尼氏体减少在伤后24h才开始出现;同一部位的GFAP阳性细胞数目随损伤时间发生改变,先增多(最早在伤后0.5h),达到高峰后减少,其后又有增多趋势,但不同部位的GFAP阳性细胞数目增减的时间过程不尽相同,同时,大脑中的GFAP阳性细胞数目也有改变;伤后0.5h,可在脑干组织中见到Al和Fg阳性神经细胞,主要位于血管周围,阳性物在胞浆中呈弥散性分布,但部分细胞的阳性物仅分布于靠近胞膜的胞浆中而呈环状,随损伤时间延长,阳性细胞数目增多,反应强度增加;伤后3~6h,延髓及桥脑中的SYN阳性物面积减少,其后恢复到正常水平,并持续到伤后24h。

The treatments of NPK and NPK+BCF were better than those of N, NP, NK on the plant height, stem, leaves area, chlorophyll, bearing fruit stick, extent of unfolding, the time of blooming and bearing fruit, and plant soma changes of harvest time. The ratio of basal manure to after manuring and the different ratio of after manuring showed mutual effects: The excessive nutrient had unfavorable influences on plant growth and development in former time.

NPK+BCF及NPK的配方在株高、茎粗、叶面积、叶绿素含量、结果枝、展开度、开花期和挂果期、收获期植株营养体变化等指标上都优于NP、NK及只施N肥的配方;不同基追肥比例及不同追肥比例表现出共同的效果:前期施入过多的养分不利于茄子植株的生长发育。

The results show that the growth rate of tetrapod ZnO is controlled by spiral growth and its crystallization is via VLS model. The condensation of tiny zinc droplets in zinc vapor is the key factor of the formation of tetrapod ZnO. The growth steps are formed on the terminated faces as zinc diffuses outwards and the elongation of whiskers continues until zinc inside the droplets is depleted. VS crystallization, which has little effect on the elongation growth, takes place on side faces of the whiskers and consequently makes the whiskers radius increase.

结果表明: T-ZnO晶须的结晶作用是气-液-固方式,晶须生长受螺旋生长机理控制;锌蒸气中产生凝聚生长的锌液滴是制备T-ZnO晶须的关键,锌从液滴内向外扩散在晶须的端面产生生长台阶,随着液滴内的原子向外不断扩散,针体部分就不断地伸长生长,当液滴内的原子全部消耗尽时,晶须便不再发生轴向生长;气-固方式的作用主要是促进晶须棱面生长而使晶须变粗,对轴向生长几乎没有影响。

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But in the course of internationalization, they meet with misunderstanding and puzzlement.

许多企业已经意识到了这一点,但在国际化的进程中,仍存在一些误区与困惑。

Inorder toaccomplish this goal as quickly as possible, we'll beteamingup with anexperienced group of modelers, skinners, and animatorswhosenames willbe announced in the coming weeks.

为了尽快实现这个目标,我们在未来数周内将公布与一些有经验的模型、皮肤、动画制作小组合作。

They answered and said to him, Are you also from Galilee?

7:52 他们回答他说,难道你也是出于加利利么?