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When the measured value greater than or equal to 5mg/100mg usually allows iodometry; When measured value is less than 5mg/100mg, the method used to ensure the accuracy of measurements.

当测定值大于或等于5mg/100mg时,通常允许用碘量法;当测定值小于5mg/100mg时,通常使用光度法,以保证测定结果的精度[1]。

The new technique reduced the distance ladder to three "rungs":(1) The distance to galaxy NGC4258 is measured using straightforward geometry and Kepler's laws;(2)Cepheids in six more distant galaxies are used to calibrate the luminosity of Type Ia supernovae;(3) The Hubble constant is measured by observing a brighter milepost marker, Type Ia supernovae, in more distant galaxies hundreds of millions of light-years away, embedded in the expanding universe.

这种新技巧简化了距离跳跃为三个"阶梯":1、星系NGC 4258的距离采用开普勒定律和简单直接的几何方法精确测量;2、在6个更远的星系中的造父变星用来校准Ia超新星的光度;3、深嵌于数亿光年外的膨胀宇宙中的星系中的Ia超新星——一种遥远而明亮的量天尺,被用于精确测定哈勃常数。

Methods: Separate and abstract the effective components of Huangqi (Omni-Saponin、total-flavone) and Danshen (Danshen-ketone、 Danshen-Quinone). Applying L-Arginine methyl ester to pregnant rats by I. P to make Nitrogen Oxide Synthesis blocking models (uterus-placenta-fetus lacking blood and oxygen model or pregnant hypertension syndrome model). On day 12, 18 of pregnancy paunched the rats and took out the fetus and placenta/uterus. Measured the basal BP during pregnant period and BP、protein、basal activity each day. Observed placenta/deciduas ultramicroscopic structure by electron microscope and took count of languishment cells. Measured the expressive intensity of bcl-2、Bax of placental nutrient cells by SABC method.

一氧化氮合成酶阻滞剂L-精氨酸甲酯妊娠大鼠腹腔给药,制作一氧化氮合成阻滞模型(子宫-胎盘-胎儿缺血缺氧或妊娠高血压模型),妊娠第12、18天剖腹取胎、胎盘/子宫,妊娠期测基础血压,每日测血压、蛋白质量、基本生理活动;电镜观察胎盘/蜕膜超微形态结构,并进行细胞凋亡计数;免疫组化检测胎盘滋养细胞bcl-2、Bax表达强度;原位杂交法检测胎盘滋养细胞、血管内皮细胞VEGF、eNOS、iNOS、MCP-1、MMP9(基质金属蛋白酶9)mRNA表达。

The distribution of microhardness is not uniform across the anodic film for the most specimens and the general trend is that the value of the hardness is higher both in the outer film adjacent to the surface and in the inner film near the interface between film and substrate for the specimens with type Ⅱ and type Ⅲ anodizing technology. The measured modulus for anodic film with type Ⅲ anodized is 80.77Gpa. The thermal expansion coefficients of anodic films are measured by two different methods based on X-ray diffraction technique. One way is to detect the lattice spacing change of crystalline phase in powder specimen of anodic film as the increment of temperature by powders of anodic film; and the other way is to determine the thermal stress by entire specimen, that is, the anodic film and the substrate attached together.

利用X射线衍射的方法采用两种不同手段对氧化膜的热膨胀系数进行测试,一种方法为采用氧化膜粉末样品,测量温度变化过程中晶面面间距的改变,进而推出其热膨胀系数;另一种方法为整体试样测试氧化膜中的热应力,通过热应力和热膨胀系数之间的关系计算氧化膜的热膨胀系数。

Canine competitors had the distance measured so they could compete for best leaper. Each jump was measured from the end of the dock's runway to the point where the dog's tail landed in the pool.

最后的胜负由参赛狗跳出的距离判定,起点为甲板的边缘,终点为狗落水时尾巴触水的地方。

By using the air temperature measured by thermocouples and the glass temperature measured by infrared thermometer as the training sample, a model for prediction of the temperature parameters for the float glass in lehr was created based on the ameliorated BP neural network.

摘要利用热电偶测得的退火窑中空气温度和红外测温仪测得的玻璃表面温度作为训练样本,建立了基于BP神经网络的玻璃温度预测模型。

Serum PCT and CRP were measured on admission, and leucocyte count was measured within 24 hours after admission.

结果 血清PCT水平作为细菌感染的标志物,不受胎龄、产式、性别及日龄等因素的影响(p>0.05)。

The microstructures and phases of the alloys were analyzed by OM, SEM and XRD; the erosion resistance of the alloys prepared by different processing were measured under the conditions of simulated-brine and salt atmosphere, besides the various corrosive rates were calculated by the method of weight lost; the lows of corrosion were analyzed by the electrochemical polarization curve, and the corrosive current was measured through the method of Tafel linear extrapolation.

用光镜、扫描电镜、X射线衍射分析了合金的组织与相的组成,测试了模拟海水及盐雾条件下三种工艺制备的材料的耐腐蚀性能,并用失重法定量计算各自的腐蚀速率;利用电化学极化曲线法分析了三种工艺制备的材料腐蚀规律,用塔菲尔直线外推法测定腐蚀电流。

We also found that the content of Na(superscript +), K(superscript +) and proline in leaves varied with different treated days. Under all treatments, the absorption of Na(superscript +) increased and the content of proline in leaves decreased with the prolonging of treated days. The absorption of K(superscript +) measured on the 7th day and the 21st day increased and was restrained on the 14th day, which lead to the decline of K(superscript +)/Na(superscript +) ratio. While the content of praline measured on the 14th day remarkably increased with the increase of salinity. Our experiment indicated the live oak seems to adapt the salt stress by increasing the absorption of K(superscript +) during the earliest and late stages of salt stress and accumulating proline in leaves during the middle stage of salt stress.

同时发现,盐胁迫处理不同时期对叶片脯氨酸含量和Na、K含量的影响各不相同,在处理7d和21d时,叶片对Na和K的吸收量均有增加,使K/Na维持相对稳定的比值,而脯氨酸含量随NaCl质量质量浓度的增加减少;在处理第14d时,对Na吸收增加的同时,抑制了对K的吸收,导致K/Na比值随NaCl质量质量浓度的增加而迅速下降,而此时叶片脯氨酸含量随着盐质量质量浓度的增加而迅速增加,表明在盐胁迫早期和晚期,弗栎可能通过增加对K的吸收以减轻Na离子毒害效应,而在盐胁迫中期,叶片积累脯氨酸是适应盐胁迫的方式之。

In the process of J determination by J-R curve method, the result measured using this equation can get a very good agreement with that measured by low blow test.

在J-R阻力曲线法测定材料的J时,用该方程可得到与小角度冲击方法相一致的测试结果。

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