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There are 8.6%~10.91% foreign matter in the sphenes, in which radioactive elements of strontium, cesium and uranium range from 4.26% to 4.58%. The change of structural cell parameters of sphenes is still very little,Δa=-0.0009 nm~0.0041 nm,Δb=0.0018 nm~0.0004 nm,Δc=0.0002 nm~0.0048 nm,Δβ=-0.10°~0.09° with high crystallinity of 99.27%~96.46%. Though, the age of sphene from the Fenghuang Mountain is about 1000 Ma, and experienced 775 Ma~1758 Ma geological evolvement and alpha decay, its crystallinity only decreased 3%, and its crystal shape and structure are still fine, indicating that sphene is of good ability to solidify radioactive elements. Therefore, sphenes are ideal minerals for solidifying nucleus waste.

通过对北祁连牛心山变质杂岩体中榍石(775Ma)和山西凤凰山花岗岩中榍石(1758Ma)的XRD及EDS等测试与研究,结果表明:两地榍石的杂质元素质量分数高达8.6%~10.91%,放射性核素锶、铯和铀的质量分数达4.26%~4.58%;晶胞参数的变化极小,△a=-0.0009nm~0.0041nm、△b=0.0018nm~0.0004nm、△c=0.0002nm~-0.0048nm、△β=-0.10°~0.09°,结晶度仍高达99.27%~96.46%,榍石经过10×10^8a的地质作用,结晶度仅减少了3%,显示榍石固化放射性系列核素的能力较强,虽经历了约775Ma~1758Ma的复杂地质演化及其所含放射性核素的衰变作用,其晶体结构完好,稳定性极高,是值得期待的理想核废物固化矿物。

RESULTS: SEM results showed that the fiber morphology of P(50/50) 6% nanofibers membrance was better and more uniform diameter distribution. Mechanic test indicated nanofibers membrance of P(50/50) had longer breaking elongation but smaller breaking stress than nanofibers membrance of P(75/25). Hydrophilicity of P(75/25) fibers was better. MTT results proved that 6% and 8% P(50/50) nanofibers could enhance the adhesion and proliferation of endothelial cells on the surface of materials, and the cells had the best spreading and attachment on the nanofibers.

结果:通过扫描电镜观察发现由质量分数为6%聚(50/50)制备的纤维膜具有更好的纤维形态,且直径分布均匀;拉伸力学测试显示由聚(50/50)制备的纤维膜比聚(75/25)具有更高的断裂伸长率,但断裂应力较低;细胞生物相容性实验表明猪髋动脉内皮细胞在质量分数为6%和8%聚(50/50)的纳米纤维膜上更能有效的黏附与增殖。

Simulation experiments and analysis show that the proposed method is robust in a wide range of characteristic exponent values of stable distribution.

仿真表明这种算法是一种在高斯和分数低阶α-稳定分布噪声条件下具有良好韧性的水下目标定向算法,相对共变而言,分数阶相关具有更宽的噪声特征指数范围,更适用于实际应用。

For the composites with a low content of TiC particle, the rupture manner was mainly the nucleation of cavity and following ductility splitting fracture. But for the composites with a high content of TiC particle, the cracking and decohesion of TiC particles were the main rupture mechanism. For the composite containing a middle TiC content, the rupture mechanism consisted of the above two styles, but the former was the dominating mechanism and the later was the subordinate mechanism.

对TiC体积分数较低的钢基复合材料,拉伸过程中TiC颗粒界面上的孔洞形核及随后塑性撕开机制是其断裂失效的主要机制;对TiC体积分数较高的钢基复合材料,拉伸过程中TiC颗粒的开裂及脱落是其断裂失效的主要机制:对TiC体积分数介于上述两者之间的钢基复合材料,拉伸过程中TiC颗粒界面上的孔洞形核及随后塑性撕开机制在其断裂失效过程中占主要地位,而TiC颗粒的开裂及脱落占次要地位。

For Texaco water gas,the methanol synthesis is based on formyl route under high concentration of CO(15%-16% in volume).

认为合成甲醇在相同的工艺操作条件下,由于反应气体成分的不同,造成了反应途径的区别,即焦炉气制甲醇在高CO2的条件下(体积分数6%~9%),甲醇合成反应主要是以甲酰基途径合成;徳士古水煤气制甲醇在高CO条件下(体积分数15%~16%),甲醇合成反应主要是以甲酸基途径合成。

The result showed that there had little influence on the growth of Ca-enriched Sp. maxima when adding 0. 6 g/L CaCO3 and harvesting in 24 h in the end of the lag phase. It was also found that the Ca - enriched Sp. maxima had highest organic calcium content, higher total calcium content and higher ratio of organic calcium and total calcium.

研究表明,添加0.6g/L的CaCO3,在培养24 h后收获,即在延迟期的末段收获,对极大螺旋藻的生长影响较少,同时可获得有机钙质量分数最高,总钙质量分数相对较高,有机钙占总钙的比例也相对较高的富钙螺旋藻。

Three days after inoculation, 67.13% grape phylloxera selected 'Kyoho', while only 15.29% and 17.58% phylloxera selected '5BB' and '140Ru', respectively.

对砧木5BB和巨峰根系的挥发性组分进行测定,发现2个品种挥发物独有组分数量均较高,巨峰独有组分为23个,占总成分数的48.94%,5BB的独有组分为32个,占总成分数的57.14%。5BB和巨峰的共有组分为24个,主要成分均为亚油酸甲酯和反油酸甲酯,但含量有所不同,其中,5BB以倍半萜类的丁香醇及脂肪酸甲酯类的亚油酸甲酯,反油酸甲酯,棕榈油酸甲酯含量较高,高于巨峰中相应物质含量的4.23%~6.46%,而巨峰以邻苯二甲酸二丁酯及胆甾烷含量较高,分别高于5BB相应组分含量的6.81%和1.07%。

Worn surface morphology was examined with scanning electron microscopy, and wear volume was measured with a Talysurf 5P-120 topographer. Results show that CNTs, in mass concentration of 0.01%~0.1%, can greatly improve the antiwear ability of lubricating oil. With addition of CNTs, the maximum reduction of wear rate is about 57%, and scratches on the worn surfaces become slighter and more uniform. The maximum decrease of friction coefficient is about 15% with 0.025% CNTs additive at the load of 300 N. The antiwear mechanism has been discussed.

结果表明:碳纳米管作为润滑油添加剂表现出优良的抗磨性能,在质量分数仅为0.0125%~0.1000%时,润滑油的抗磨性能显著提高;在质量分数约为0.0500%时其抗磨效果最佳,磨损率降低幅值达57%;在较高载荷下,添加0.0250%的碳纳米管能够使其摩擦系数减小约15%,但随着碳纳米管质量分数的增加,摩擦系数迅速提高;含碳纳米管润滑油的磨斑表面平整,划痕较细且分布均匀。

Methods: Foty healthy New Zealand white rabbits were randomly divided into four groops. Control groop was fed with normal diet for 10 weeks, model groop was fed with 1.5% cholesterol diet plus normal diet; APS groop was fed with 1.5% cholesterol plus 12.0mg/kg APS plus normal diet; Captopril groop was fed with 1.5% cholesterol plus 15.0mg/kg Captopril plus normal diet. After ten weeks' experiment, the concentration of each group's Triglyceride, Total Cholesterol, High Density Lipoprotein Cholesterol, C Reactive Protein, Nitric Oxide, Maleic Dialdehyde and Endothelin-1 were measured, so was the activity of superoxide dismutase.

将40只雄性新西兰兔随机分为4组,每组10只,对照组餵普通饲料;模型组:普通饲料加质量分数为1.5%的胆固醇餵养;黄芪多糖组:普通饲料加质量分数为1.5%的胆固醇餵养,同时腹腔注射APS(12.0mg/kg);卡托普利组:普通饲料加质量分数为1.5%的胆固醇餵养,同时灌喂卡托普利(15.0mg/kg);10周后,测定各组空腹血清或血浆三脂酰甘油、总胆固醇、高密度脂蛋白胆固醇、一氧化氮、内皮素-1(ET-1)、丙二醛、C反应蛋白含量以及超氧化物歧化酶活性,并计算主动脉内膜粥样斑块面积。

Based on this, aim at the disadvantage on Wigner Distribution and Fractional Fourier Transform that can't restrain noise interference effectively when be used to detect Linear Frequency Modulated signals interfered by heavy noises, we proposed a improved WD. Simulation results show that this method can restrain noise interference effectively and improve the ability of LFM signals detection. On the other hand, in multi-component cases, WD suffers from the cross-terms, which may impair some of the auto-terms. In order to separate original multi-component signals into components and reconstruct them separately, we can use the method of optimal filtering in fractional Fourier domain. But this method also has a problem that if signals have aliasing in the fractional Fourier optimal domain as well, the reconstructed signals will be distorted. In this thesis, a novel method of quasi Fourier transform is proposed in order to solve the problem of multi-component signal reconstruction, and have good results.

在此基础上,针对Wigner分布和分数维傅里叶变换在处理高噪声背景下线性调频信号检测的问题时存在不能有效抑制噪声干扰的缺点,提出了改进Wigner分布的办法,该方法能够抑制噪声,提高信号的检测能力;针对Wigner分布在处理多分量非线性调频信号时存在干扰项的缺点,以及分数域最优滤波方法在处理多分量非线性调频信号分离重构问题时存在的局限性,该局限性表现为在对最优分数域上也有信号分量重叠的情况进行处理时重构信号发生畸变,提出了新颖的类傅里叶变换的方法,该方法对在最优分数域上也有信号分量重叠的情况也能处理,得到的重构信号失真很小。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。