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This thesis studies the volcanic tectono-petrofacies, petrology, mineralogy, geochemistry, isotopic chronology, stratum and high-precision SHRIMP zircon U-Pb datings of the Mt.Yandangshan volcano-intrusive complex, and concludes that: Yandangshan volcanic rock units belong to high-K calc-alkaline acid rock associations, mainly ryholitic and trachytic dacitic in composition. They have A/CNK values of 0.9-1.2 (i.e., aluminium saturation and supersaturation), enriched LREE and LILEs and depleted HFSE. Their 8Eu values are 0.11-0.32, indicating a evident fractional evolution of plagioclase crystallization. Their ∑REE varied very limitedly,(87~Sr/(86)Sri ratios and eNd values are 0.7086~0.7095 and -10.20~-9.96 for volcanic rocks, and 0.7087~0.7095 and -7.6~6.92 for the central intrusive facies syenite, which means that all the igneous rocks from Mt. Yandangshan are evolutional products of magmas with the same source, and that they derived mainly from crust, but mixed with mantle components.
本文从火山构造岩相学、岩石学、矿物学、地球化学、同位素年代学、地层学等方面出发,同时结合高精度SHRIMP锆石U-Pb定年,对雁荡山火山岩进行了系统的研究,确定雁荡山火山岩为一套以流纹质和粗面英安质为主体的高钾钙碱性酸性岩石组合,A/CNK值集中在0.9~1.2之间,为铝饱和或铝过饱和类型;富轻稀土元素和大阳离子亲石元素、相对亏损高场强元素:负铕异常明显,δEu值为0.11~0.32,表明岩浆经历了以斜长石为主的强烈结晶分异作用:岩石样品的∑REE变化有限,火山岩样品的~(87Sr/~(86)Sr_i为0.7086~0.7095,εNd为-10.20~-9.96,中央侵入体石英正长岩~(87Sr/~(86)Sr_i为0.7087~0.7095,εNd为-7.6~-6.92,表明它们是同源岩浆分异演化的产物,物质来源主要为陆壳,但有地幔物质参与。
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The effects of ,, and temperature on the distribution ratio have been investigated. The composition of the extracted species is determined by the methods of slope ratio, continuous variation,extraction isotherm curves and their chemical analyses. The extraction is found to proceed according to the reaction:AuCl_4 ~-+DEOTA_(0)TAuCl3 .DEOTA_...
着重研究了盐酸浓度、氯离子浓度、氢离子浓度和温度诸因素对萃取的影响;对有机相中金的反萃行为也进行了初探;通过斜率法、等摩尔系列法、萃取等温线法确定了配合物的组成;推定了DEOTA在盐酸体系中萃取金的机理为配位取代反应;计算了萃取反应的表观平衡常数和配合物的稳定常数。
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Based on the dynamic equation, the transport and acceleration of out-flowing ionospheric ions in the magnetosphere are studied by means of finding the ion distribution function. They include two parts: the study of static ion distribution with analysis and numerical compute; the study of ion acceleration by induced electric feild in the period of dipolarization of taillike geomagnetic lines in the substorm expansion phase with the numerical simulation of the ion distribution function.
本文在磁层中上行离子的加速与传输理论研究领域中,采用动力论方程,用求解离子分布函数的方法来研究问题:(1)用解析求解和数值计算的方法,对上行离子在不同Kp指数条件下磁场位形中的定态分布进行了研究;(2)用数值模拟计算分布函数的方法,对上行离子在亚暴膨胀相磁场向偶极形驰豫过程中受磁尾的感应电场加速进行了研究。
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An indirected ELISA was established with the purified recombinant protein, after the square matrix titrate determination best density is 2.43μg/mL, the blood serum best dilution ratio is 1:40,Compares with ten reagents boxes, proved we establish the ELISA method has the high specificity and the sensitivity.
以纯化的重组蛋白建立了初步的间接ELISA方法,经方阵滴定确定最佳包被浓度为2.43μg/mL,血清最佳的稀释比为1:40,与万泰试剂盒相比较,证明我们建立的ELISA方法有较高的特异性和敏感性。
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Moreover, taking the adsorption process from oven-dry state to the equilibrium state in 20℃,60%RH environment as an example, the dielectric relaxation based on the reorientation of adsorbed water molecules was separated out from that based on the methylol groups in the amorphous region of wood cell wall.
以绝干状态→20℃,60%RH 平衡态的吸湿过程为例,将基于吸着水分子回转取向运动的介电弛豫与基于木材无定形区中伯醇羟基回转取向运动的介电弛豫进行分离,并在 Eyring 的绝对速度反应论的基础上,求得了与吸着水分子进行回转取向运动相关连的热力学量,得到了在吸着过程中吸着水分子与木材吸着点之间的氢键结合随着水分吸着进程的变化情况。
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The significant advantage of our formulation in that one does not need to carry out the integration over canonical momenta in generating functional and one only requives the andto be invariant under the non-local transformation in non-Abelian Chern-Simons theory.
这里给出的形式的显著优点在于勿需作出相空间生成泛函中对正则动量的路径积分。在非Abel CS理论中的非定域变换下,仅要求和不变,即可导出正规顶角间的一些关系式。
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The algorithm for optimizing parameter is applied and effective,and is much better than that of common Genetic Algorithm,and has good perfectible application future.
文献[2]提出用模糊控制算法整定PID参数,文献[3]将Bang-Bang控制与神经网络自适应控制相结合,利用神经元的学习功能构成了一种自适应PID控制器,文献[4]以蚁群系统和蚁群算法为基础,提出了一种新的具有不完全微分的最优PID控制器的设计方法,文献[5]提出一种利用改进微粒群算法优化PID参数的方法。
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Next, in parentheses, is the Spellcraft DC required to determine the school of magic, followed by the school or schools of magic associated with the item's aura (usually determined by the spells listed in an item's prerequisities).
接下来,在括号中的是当决定魔法门派时的施法检定DC,按照与该物品的光环相联系的一个或者多个魔法门派一次排列(常常由一件物品的先决条件中列出的法术而定)。
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In order to explore the influence of the bath composition on Ni-W-P alloy coating structure and properties, to find the right ratio, so as to lay the foundation for follow-up experiments, SEM/EDS, X-ray diffraction, and metallographic analysis and other methods were adopted to study the composition and structure of different chemical deposition of Ni-W-P alloy. And the hardness of different components of the sediment layers plated state and the hardness after heat treatment were measured.
为了探索镀液组分对Ni-W-P合金镀层结构与性能的影响规律,寻求合适的镀液配比,为后续实验莫定基础,采用扫描电镜/包谱、X射线衍射以及金相分析等方法,研究了不同成分和结构的化学沉积Ni-W-P合金层,测量了不同成分沉积层的镀态与热处理后的硬度。
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First, we introduce and discuss the various methods of multivariate polynomial interpolation in the literature. Based on this study, we state multivariate Lagrange interpolation over again from algebraic geometry viewpoint:Given different interpolation nodes A1,A2 .....,An in the affine n-dimensional space Kn, and accordingly function values fi(i = 1,..., m), the question is how to find a polynomial p K[x1, x2,...,xn] satisfying the interpolation conditions:where X=(x1,X2,....,xn). Similarly with univariate problem, we have provedTheorem If the monomial ordering is given, a minimal ordering polynomial satisfying conditions (1) is uniquely exsisted.Such a polynomial can be computed by the Lagrange-Hermite interpolation algorithm introduced in chapter 2. Another statement for Lagrange interpolation problem is:Given monomials 1 ,2 ,.....,m from low degree to high one with respect to the ordering, some arbitrary values fi(i= 1,..., m), find a polynomial p, such thatIf there uniquely exists such an interpolation polynomial p{X, the interpolation problem is called properly posed.
文中首先对现有的多元多项式插值方法作了一个介绍和评述,在此基础上我们从代数几何观点重新讨论了多元Lagrange插值问题:给定n维仿射空间K~n中两两互异的点A_1,A_2,…,A_m,在结点A_i处给定函数值f_i(i=1,…,m),构造多项式p∈K[X_1,X_2,…,X_n],满足Lagrange插值条件:p=f_i,i=1,…,m (1)其中X=(X_1,X_2,…,X_n),与一元情形相似地,本文证明了定理满足插值条件(1)的多项式存在,并且按&序&最低的多项式是唯一的,上述多项式可利用第二章介绍的Lagrange-Hermite插值算法求出,Lagrange插值另一种描述是:按序从低到高给定单项式ω_1,ω_2,…,ω_m,对任意给定的f_1,f_2,…,f_m,构造多项式p,满足插值条件:p=sum from i=1 to m=Ai=f_i,i=1,…,m (2)如果插值多项式p存在且唯一,则称插值问题适定。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。