迁移的

It proves the singular transport operator generates a strongly continuous C_0 semigroup V(t0)and the weak compactness properties of the second-order remained term of the Dyson-Phillips expansion for the C_0 semigroup V(t0)in L1 space,and to obtain the spectrum of the singular transport operator only consist of,at most,finitely many isolate eigenvalues which have a finite algebraic multiplicity in trip Γ.

证明了这类方程相应的奇异迁移算子产生C0半群和该半群的Dyson-Phillips展开式的二阶余项是弱紧的，从而得到了该迁移算子的谱在区域Γ中仅由至多有限个具有限代数重数的离散本征值组成等结果。上饶师院数学与计算机系江西上饶334001；南昌大学数学系江西南昌330047袁邓彬

It was indicated that the effect of crystal orientation on interfacial stability is because of the different atomic bond number formed in the solidification of liquid atoms on different crystal planes, which affects the decrease of system energy, and affects the effective jump frequency of liquid atom migration to solid interface and solid atom migration to liquid, and finally affects the solute distribution in the front of liquid-solid interface and composition undercooling.

研究表明，晶体取向对凝固界面稳定性的影响是由于液相原子在不同晶面结晶面上沉积时形成的原子键不同，影响了系统自由能的降低，影响了液相原子迁移至固相界面上的有效跳动频率和固相原子迁移至液相中的有效跳动频率，影响了液固相界面前沿的溶质分布和成分过冷所致。

Experimental results and theoretical analysis showed that moisture movement within cooked meat during vacuum cooling consists of two parts.One was water migration within cooked meat caused by chemical;the other was water vapour movement produced by evaporation or ebullition caused by pressure drop.

试验结果和理论分析显示，真空冷却过程中的水分迁移由两部分组成，一部分为由于产品内部温度不同造成不同的化学势引起食品内部的水分转移；另一部分为由于压力降低引起的水分蒸发或者沸腾后所产生的水蒸气的迁移。

Although it was as obvious to Aristotle as it is to us now that birds from northern latitudes migrate to the tropics in order to escape an ice-bound winter, precisely how they manage to make their way from one hemisphere to the other remains one of the great puzzles of the natural world.

北纬地区的鸟儿迁移到赤道地区是为了逃避冰封的冬天，这是当年亚里士多德知道，我们现在也同样清楚的事实；尽管如此，鸟儿是怎样从一个半球迁移到另一个半球的，至今依然是自然世界的一大的疑谜。

In so doing, we expected to obtain the information regarding particle size and size distribution of AuNPs directly from the electrophoresis results. In this experiment we used 10mM Sodium tetraborate and 10mM Sodium phosphate containing 200mM Sodium dodecyl sulfate as electrophoretic run buffers (pH 8.8), and AuNP Standards were treated with the synthesized compound hexyl-oligo(p-phenyleneethyny-lene)-poly as the sample and separated by CE.

根据电泳最佳条件的实验结果，我们采用10mM Sodium tetraborate与10mM Sodium phosphate并添加200mM Sodium dodecyl sulfate作为缓冲溶液（pH 8.8），以经实验室合成的界面活性剂（hexyl-oligo (p-phenyleneethyny-lene)-poly，Hex-OPE-PEO）修饰过后的金奈米粒子标准品作为样品进行电泳实验，将所测得的电泳迁移率与标准品颗粒大小做一校正曲线，可以得到最佳的电泳迁移率－粒径大小之线性关系（R2＞0.99）。

The DFT (B3LYP/6-31 + G) method was used to study the relative stabilities and probable proton transfer in isolated and monohydrated 2,4-dithiothymine molecules in gas phase. The effects of water on relative stabilities and the rate of the proton transfer were analysed. The results indicate that only one tautomer for 2,4-dithiothymine can exist in gas phase.

采用密度泛函方法在B3LYP/6-31+G水平上研究了2，4-二硫基胸腺嘧啶孤立分子和水合物的异构体的相对稳定性和可能的质子迁移反应，分析了水分子的参与对 2，4-二硫基胸腺嘧啶异构体的相对稳定性和质子迁移速率的影响。

After thermodynamic studies on the former two typical fine disseminated gold deposits, the following facts are found: both existent and transferring form of gold in mineralizing hydrothermal solution are predominated by Au 〓 and AuH〓SiO〓; the contribution of AuCl〓〓 is negligible to mineralization; and those contribution of gold bearing complexes including Au with As-S and Sb-S are much less than that of Au 〓 and AuH〓SiO〓, organic complex take effect in some degree during the relatively low temperature activating period of gold.

对以上两个典型微细浸染型金矿床的热力学研究，发现成矿热液中金的存在和迁移形式均以Au〓和AuH〓SiO〓为主，AuCl〓对金迁移成矿的贡献微不足道，金砷硫或金锑硫等复合配合物对金成矿的作用远不及Au〓和AuH〓SiO〓，有机配合物在温度较低的金的活化期有一定作用。

Of the 2,000 commercial beekeepers in the United States about half migrate This pays off in two ways Moving north in the summer and south in the winter lets bees work a longer blooming season, making more honey — and money — for their keepers.

全美2000多商业养蜂人的一半通过在夏天往北迁移和冬天往南迁移这两种方法让蜜蜂工作更长的花期，制造更多的蜜-和钱-给他们的养育者。

The positive expression rates of Tissue Inhibitors of Metalloproteinase-2 protein in the cases of involuting groups were significantly higher than those in proliferating group and vascular malformation groups and normal skin group (P.05). Its difference was significant. Conclusions: Matrix MetallProtinase-2 and Tissue Inhibitors of Metalloproteinase-2 may play an important role in the pathogenesis of hemangiomas through angiogenesis. They may have no effect on vascular malformation and normal skin

血管瘤退化期，TIMP-2表达明显升高，说明 TIMP-2与血管瘤纤维化、消退有关，其机制可能是一方面通过抑制MMP-2介导的基底膜降解而在内皮细胞迁移、聚集中起作用，另一方面直接抑制内皮细胞的增殖及迁移，使内皮细胞高频率调亡，细胞外基质增多，组织出现纤维化，最终导致血管瘤的退化。2、血管畸形和正常皮肤小血管中MMP-2和TIMP-2不表达或表达较弱，说明血管畸形和正常皮肤小血管中并不存在异常的血管生成，据此可以对血管性疾病进行分型、分期，并指导临床治疗。

As pollutant migrated into the capillary zone,capillary tension restricted the vertical movement.The pollutant must overcome the entrapment pressure of oil-water interface before entering the capillary zone, and pollutant accumulated on the top of the capillary zone to become pressurized.The pore pressure of pollutant exceeded the entrapment pressure of oil-water interface,and pollutant entered the capillary zone and formed a lens above the groundwater level.

当污染物迁移到地下毛细管区后，其向下的运动将整体受到毛细张力的阻碍，污染物要想进入毛细饱和带必须克服油-水界面的进气压力，这时污染物在毛细饱和带顶部聚集以期获取压力，同时将产生以水平方向为主的迁移，最终随着污染物的压力超过其进气压力，导致污染物进入毛细饱和带，在地下水水位上形成一个透镜体。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。