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of extreme weather events such as drought and floods, global water flows will impact [7] and challenge water availability and increase exposures to unsafe water. For example, floods and heavy storms...; Kp is the dermal permeability coefficient in water; CSF is the cancer slope factor. The equations in our study and the specific parameters values are referred from USEPA and the official Chinese......
of thermal expansion coefficient and modulus of elasticity between the reinforcing particles and the matrix lead to the increase in the dislocation density in the composite. According to Fig. 5(c), open... Society of China, 2017, 27(8): 1716-1724. [9] NARAYANASAMY P, SELVAKUMAR N. Tensile, compressive and wear behaviour of self-lubricating sintered magnesium based composites [J]. Transactions......
. 0.1-0.2 g powder from each sample was put into a low pressure sealed solution sample tank with the addition of a hydrazine diluent and mixed acid for 24 h, completely dissolving the powder. After... coefficient is extremely low not only between dissolved SO24- and precipitated sulfate at 25 °C, but also during gypsum crystallization in some other basins worldwide [62]. These studies further suggest......
was performed at pressure/temperature of 40 MPa/1600 °C with a heating rate of 100 °C/min for a holding time of 15 min and the sizes of the sample was φ40 mm×7 mm. 2.2 Characterization The density (ρ... that of CP-Ti (about HV180). Generally, the higher the hardness of the alloy, the higher the wear resistance is. The hardnesses of Zr-30Ta alloy and Zr-25Ta-5Ti alloy are HV481 and HV454, respectively......
, e.g., elastic properties, cohesion, pressure-sensitive yielding, viscoplasticity, plastic flow and anisotropy [11-13]. These properties are almost related to the performance of yield function... in which properties such as bonding effect and pressure-sensitive yielding could be easily incorporated, and the corresponding yield curves in the meridional plane can be either "teardrop" type or "bullet......
coefficient. The theoretical contrast factor (Chkl) is generally the product of two 4-rank tensors, namely the geometrical Gijmn and elastic Eijmn components [12]. ... defines the distortion due to a dislocation. Due to the extreme complexity on the estimation of Chkl for individual dislocation in polycrystalline aggregates, the average diffraction contrast factors......
组黑色岩系有机质的富集产生了积极影响,在牛蹄塘组沉积时期,热液为水体提供了热能[35]并携带了大量微量元素和营养物质到地表[20],使水中生物更加繁盛,有助于富有机质黑色岩系的发育. 图5 牛蹄塘组Ni和Sb富集系数,Co+Ni元素质量分数与w(TOC)相关性 Fig. 5 Correlation between richment coefficient of Ni,Sb,mass..., 268(3/4): 211-225. [20] HAN Tao, FAN Haifeng, ZHU Xiaoqing, et al. Submarine hydrothermal contribution for the extreme element accumulation during the early Cambrian, South China[J]. Ore Geology......
Particulate-reinforced magnesium matrix composites (PMMCs) have attracted much attention due to their attractive properties, such as high elastic modulus, high strength and high wear resistance [1-3... the strengthening coefficient given as 1.25 [41], v stands for the Poisson ratio of the matrix alloy (0.35), G represents the shear modulus of the Mg matrix with a value of 16.5 GPa and b stands......
,j denotes the received signal-to- noise ratio (SNR) which is expressed as The channel coefficient hi,j captures the effect of the small-scale fading, and di,j is the distance between UAVi and UAVj. β......
完全热处理后这种现象得到明显缓解,缓解程度与2%Ru无异.故文章不再对此实验环节进行赘述. 2.2 Ru对热处理后合金元素浓度分布的影响 表1 2%Ru合金中各元素在枝晶干/间的成分分布及偏析系数(K) Table 1 Composition distribution and segregation coefficient of each element......
