再

The thesis discusses three eigenvalues individually and explains the pressure wave propagation of three modes, includes wave speed, wave decay and energy distribution. Since the elastic potential energy occupies more than 98% of mechanical energy in the arteries, which is larger than 2% of kinetic energy of flowing blood. Else join elastic wall and wall of managing having a viscid condition to analysis .

本文将个别讨论此三组特徵值，来说明三组压力波的传递模态，其中包括波速，以及波的衰减；由於在动脉的能量分布中，由管壁振动的弹性位能占了98%，远超过血液本身流动的2%，再加上管的弹性模数和管壁的黏滞性再来讨论此三组模态，个别在弹性管的能量分布。

The programme through the transformer transformer, through the rectifier circuit filter circuit which will be AC into DC, and the adoption of the regulation by regulators more stable voltage, input voltage regulator when it can only be fixed when the voltage difference within the scope of regulation of the output voltage, and therefore out of voltage difference in the scope of automatic Diaodang, it is through the two comparator output voltage and the reference voltage comparison, and through the counter counting function control relay controller The input to determine the size of the output voltage at which the scope, and then automatically Diaodang.

该方案是通过变压器变压，再经过整流电路、滤波电路进而将交流电变为直流电，在通过稳压器的稳压得到较稳定的电压，由于稳压器当输入电压固定时只能在它的电压差范围内调节输出电压，、所以要在调出电压差的范围时自动调档，这是通过两个比较器将输出电压和基准电压进行比较，再通过计数器的计数功能控制继电器控制器的输入情况来判断输出电压的大小在哪个范围，然后进行自动调档。

And by using the initial conditions as well as the end conditions, the dynamic problem is then transferred to a second kind Volterra integral equation about the function of the axial strain with respect to time which can also be solved successfully by the interpolation method. For piezoelectric and pyroelectric hollow cylinders, by following the solving procedure for elastic hollow cylinder and by using the electric boundary conditions, the dynamic problems are transferred to two Volterra integral equations about two functions of time, one is axial strain and the other is related to electric displacement, which can also be solved efficiently and quickly by employing interpolation method. The elastodynamic solutions of hollow spheres, which are made of elastic, piezoelectric and pyroelectric materials, respectively, for spherically symmetric problems are also obtained.

对于弹性空心圆柱，通过引入一特定函数将非齐次边界条件化为齐次边界条件，然后利用正交展开技术，导出关于时间函数的方程，再结合初始条件和端部边界条件，将原问题转化为关于一个时间函数的第二类Volterra积分方程，运用插值法可给出此积分方程的解；对于压电和热释电空心圆柱，利用求解弹性空心圆柱相似的方法，再结合电学边界条件，原问题转化为关于两个时间函数（轴向应变和与电位移有关的函数）的第二类Volterra积分方程组，同样可用插值法来构造相应的递推公式高效地求解此积分方程组。

Incline rock-beam"the structure is always goes against after the working surface above main roof snaps forms along inclines the direction three-pinned arch, manifested "Voussoir beam" the structure basic characteristic, its scope was upward expansion "the balance - lost unceasingly steadily - balances again - loses again steadily the dynamic process.

倾斜岩梁"结构是由工作面上方的老顶破断后形成的沿倾斜方向的三铰拱，体现了"砌体梁"结构的基本特征，其范围是不断向上扩展的一个"平衡—失稳—再平衡—再失稳的动态过程。

Doyne Farmer, former mathematical physicist, and colleagues from his earlier mathematical adventures, set up in a small, four-room house which serves as an office in adobe -- baked Santa Fe -- as far from Wall Street as one can get in America -- are currently some of Wall Street's hottest rocket scientists.

至于多恩·法默这位前数学物理学家（还有他那些原来跟他一起进行数学冒险的同事们），虽然他们的办公室离华尔街远得不能再远（至少在美国再找不到更远的了：他们是在Santa Fe的一个只有四间房的小砖楼里），现在却是华尔街最炙手可热的火箭科学家。

He hailed me to follow him, and, after marching through a wash-house, and a paved area containing a coal-shed, pump, and pigeon-cot, we at length arrived in the huge, warm, cheerful apartment where I was formerly received.

他招呼我跟他走。再穿过了一个洗衣房，和一个堆着煤皮，水泵，还有鸽子笼的区域后，最后我们进到了宽敞的、暖和的，舒适的房间里，我曾经再这里被接待过，在煤、泥煤和木头混合燃烧产生的极大的火焰的烘烤之下，房间里非常的温暖。

With a model of reversible middle cerebral artery occlusion in rats, the effects of Losartan on the water content of the brain, the contents of Evens blue and the expression of MMP9 were investigated after 24 hours of reperfusion following two hours of cerebral ischemia.

采用血管内栓线阻断法制备大鼠局灶性脑缺血再灌注损伤模型，于脑缺血2？h、再灌注24？h后测定脑组织含水量、伊文斯蓝含量，免疫组织化学方法测定MMP9表达。

With a model of reversible middle cerebral artery occlusion in rats, the effects of Losartan on the water content of brain, the contents of Evens blue and the expression of MMP-9 were investigated after 24 hours of reperfusion following two hours of cerebral ischemia.

采用血管内栓线阻断法制备大鼠局灶性脑缺血再灌注损伤模型，于脑缺血2h、再灌注24h后测定脑组织含水量、伊文斯蓝含量，免疫组织化学方法测定MMP9表达。

Can not be each business nevertheless so prosperous ↓ 3, just arrived of new city I, seek new view everywhere, the station takes camera to overflow in house of bubble steamed bun aimlessly a chaos is patted, do not let off even eaves ↓ 4, in the street alley of lane of whole the Huis, probably only I just can am opposite there is grumous interest ↓ in the take a walk cock hen of roadside 5, going, see the ancient Buddhist templeput on the brakes with one beautiful place and compound, it is one saves in good condition big mosque so this screen wall on ↓ or front door most the look ↓ that attracted me first 6, go in to look, the building distinguishing feature of each place is so attract my ↓ 7, boosting watch for a chance, to any one place in compound Gu Xianggu's lubricious construction details does not let off ↓ 8, also be to see a new world in the compound on the side of main hall ↓ 9, room apical moon, beautiful here is authentic mosque building ↓ 10, go out courtyard, better of a few the Hui nationality people sitting in the sun next prattle,↓ of good envy letting a person 11, this clever animal on mosque gate pier looked a long time, also doing not have differentiate to go out is what animal ↓ 12, come out from the Huis lane, along the town god's temple that the ave went to Xi'an toward westing again on the west, light is a card these upstairs woodcarving had let me admired a head to pat ↓ a long time 12, what main hall of town god's temple saves is not very good, xi'an municipal government also uses contemporary carpentry to come alive without sedulous ground it seems that overhaul, then ability sees audience hall two side this former juice raw ingredient woodcarving gate ↓ 13, the eaves of audience hall also follows pailou same distinctive ↓ 14, the gravelstone lion of two side of pailou looks to also resemble antique ↓ is breathed out, photography homework of the first day is explained end, will stick other again tomorrow...

不过可不是每一家的生意都这么红火↓3、刚到一个陌生城市的我，到处寻找新鲜的景致，站在泡馍馆拿起相机漫无目的地一通乱拍，连房檐都不放过↓4、整个回民坊的街巷里，大概只有我才会对在路边的散步的公鸡母鸡都有着浓厚的爱好↓5、走着走着，就看见一处漂亮的古刹和院落，原来是一间保存完好的大清真寺↓还是正门对面的这个影壁最先吸引住了我的目光↓6、走进往看，每一处的建筑特色都是那么吸引我↓7、捧着相机，对院落里的任何一处古香古色的建筑细节都不放过↓8、正殿旁边的院落里也是别有洞天↓9、房顶上的月亮，标致着此处是正宗的清真寺建筑↓10、出得大院，几位回族长者们正坐在太阳底下闲聊，好让人羡慕↓11、清真寺门墩上的这个灵兽看了半天，也没辨出是什么动物↓12、从回民坊出来，沿着西大街再往西走就到了西安的城隍庙，光是牌楼上的这些木雕就已经让我仰头拍了半天↓12、城隍庙正殿保存的不是很好，西安市政府似乎也没有刻意地用现代木工活来翻修，于是才能看到大殿两侧这原汁原味儿的木雕大门↓13、大殿的房檐也跟牌楼一样有特色的↓14、牌楼两侧的小石狮子看上往也像古董呢↓哈，第一天的摄影作业交代完毕，明天再贴其它的

METHODS: MyoD cDNA fragments were extracted from plasmids pEMSV-MyoD with polymerase chain reaction, and PCR was used to clone the whole-length gene of MyoD. After adding CACC sequence at 5' end, MyoD gene was cloned by orient topology into transfer ventor, pENTR/D-TOPO. Objective gene was transferred into adenoviral expression vector DNA via pENTR/D-TOPO vector. The recombinant adenoviral vectors transfected into HEK293A cells by using lipofectamine were packaged and amplified.

从pEMSV-MyoD质粒上用聚合酶链反应法扩增出MyoD cDNA片段，再通过聚合酶链反应使MyoD基因加上CACC序列接头，经过定向拓扑克隆使目的基因连接到转移载体上，再通过LR酶促反应，将目的基因转移到腺病毒表达载体DNA上，获得MyoD基因重组的腺病毒DNA，用脂质体转染法转染HEK293A细胞，包装扩增出MyoD基因重组的腺病毒。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。