平方公分

Five minutes is the optimal irradiation time for ALA-PDT by Xe lamp under the same irradiation conditions. Irradiation injury caused by the light alone was slight, but the destruction rate of ALA-PDT was very high. Conclusion: Xe lamp's action spectrum is wider and it's power is higher, so it's better than 532 nm laser for ALA-PDT.

结果：532 nm连续激光和脉冲激光对K562细胞的ALA-PDT抑制率均较低，增加光剂量也不能有效提高ALA-PDT的抑制率；氙灯在功率密度为350 mW/平方公分、光照5 min时就能达到最佳的光剂量，此时单纯光照对K562细胞的光损伤作用很小且ALA-PDT效率很高。

The results indicate that back electromotive force increases with increasing current density and decreases by 0.5 V after adding 2% Li2CO3, the feeding period is 15 min measured by the method of electric potential control. Finally, the Al-Li alloy with the lithium content of 7.93% can be obtained by electrolyzing for 3 h at the current density of 0.62 A/cm^2 and at 680 ℃, and the current efficiency can reach 74.1%.

结果表明，反电动势随电流密度增加而增大，加入2%的Li2CO3可使反电动势降低0.5V；通过控制电位法测得加料周期为15 min：在680℃、电流密度为0.62A/平方公分的条件下持续电解3h，最终制得了理含量高达7.93%的铝锉合金，电流效率可达74.1%。

The device based on the copolymer with 1% molar fraction of Ir complex in the polymer had a peak luminous efficiency of 2.89 cd/A, and the maximal luminance of 1689 cd/m^2 with the configuration of ITO/PEDOT: PSS/emissive layer/Ba/AlPEDOT: poly(3, 4-ethytenedioxythiophene, PSS: poly.

基于铱配合物摩尔分数为1%的聚合物发光器件（器件结构：ITO/PEDOT： PSS/emissive layer/Ba/Al，PEDOT：聚（3， 4-亚乙基二氧噻吩），PSS：聚苯乙酸磺酸钠）在电流密度为40×10^(-3)A/平方公分时，最大电流效率达到2.89cd/A，器件的最大亮度达到1689cd/平方公尺，色坐标为(0.34， 0.59)。

Methods The designed flow chamber had provided flow shear stress at 0.5, 1 Pa (5 and 10 dyn/cm^2) for a period of 1 h, 3 hand 6 h respectively. Semi-quantitive RT-PCR was used to detect the expression of megalin/cubilin mRNA in cultured renal tubular epithelial cells.

应用流室系统提供0.5、1Pa(5、10 dyn/平方公分)的剪切应力处理培养的肾小管上皮细胞，分别作用1、3、6h后，用RT-PCR法检测megalin/cubilin mRNA的表达。

RESULTS: Caspase-3 activity was decreased by laminar shear stress of 20 dyne/cm^2, and this effect was partly related to the HIAP-2 protein expression induced by shear stress.

结果：20dyne/平方公分的剪切应力抑制caspase-3活性的增加，此作用与剪切应力能够明显诱导内皮细胞产生HIAP-2蛋白表达明显增加有关。

Increasing quenching temperature can improve the impact toughness and wear property, and the optimal impact toughness (40 J/cm^2) and wear performance of the tested steel can be obtaind by quenching at 1100℃ and tempering at 250℃ SEM analysis finds that the main wear mechanism is cutting wear and fillister under the low stress grinding abrasion.

提高淬火温度有利于冲击韧度和耐磨性的提高，经1100℃淬火＋250℃回火热处理，材料可获得最佳的冲击韧度(40J/平方公分)及耐磨性。用SEM分析发现，在该低应力磨料磨损工况下，实验钢的磨损形式主要有显微切削和凿坑。

Titanium ions were implanted into quartz and quartz coated with Ti film by MEVVA ion source implanter. The dose was 3×10^16 ions/cm^2 and 5×10^16 ions/cm^2. The ion energy and depth distribution were analyzed using simulation method.

为提高石英玻璃表面金属化膜层与基底的结合强度，利用金属蒸发真空弧离子源引出的Ti离子对石英玻璃及镀Ti膜石英玻璃进行离子注入，剂量选择3×l0^16 ions/平方公方，5×10^16 ion/平方公分，模拟分析了注入离子能量的分布。

In this paper, the conversion of unit between photometry and radiometry is achieved, and the measurement of exposure in μJ/cm^2 by luminometer is realized.

文章给出了两种单位之间的换算关系，实现了用照度计测量以μJ/平方公分为计量单位的曝光量。

At the experimental intensity of 20W/cm^2 and in the dose range studied (0.00, 0.24, 0.48, 0.72, 0.96 and 1.20kJ/m^2), both the population number and growthrate was the highest in the control and decreased with the increment of UV-B radiation. In addition, the population number and growth rate of rotifer Brachionus urceus showed a similar tendency of decrease with the dose increase of UV-B radiation. Both of them could be used as an ideal biomarker for the enhancement of UV-B radiation.

实验表明，在本实验辐射强度(20W/平方公分)和剂量范围内（0.24、0.48、0.72、0.96和1.20kJ/平方人公尺）壶状臂尾轮虫的种群数量和种群增殖率均以对照组最高，各UV-B辐射处理组则随UV-B辐射剂量的增大而呈一致性减小，说明该种群的种群数量和种群增殖率随UV-B辐射的增强显示一致性的影响，两者都可以作为大气UV-B辐射强弱的生物指标。

The results indicate that the cell only doped with Al2O3 (Cell 1) is of the worst output performance at 850 ℃, the output power density being 0. 083 W/cm^2, and that the cell doped with Al2O3 and coated with buffer layer (Cell 2) is of the best output performance at the same temperature, the output power density being 0.120W/cm^2. AC impedance spectroscopy analyses indicate that the interface resistance and Ohmic resistance of Cell 2 are obviously less than those of Cell 1, meaning that insulative nickel aluminum spine1 is generated by the reaction of Al2O3 and NiO during the sintering at a high temperature.

结果表明：850℃时，含Al2O3的电池输出性能最差，输出功率约为0.083 W/平方公分；含Al2O3并具有过渡层的电池输出性能最好，输出功率约为0.120 W/平方公分；交流阻抗谱分析表明，含Al2O3并具有过渡层的电池的欧姆电阻与界面电阻均比不含过渡层的明显减小，说明YSZ中添加的Al2O3在高温烧结过程中，与阳极材料NiO发生反应生成不导电的镍铝尖晶石。

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％。