algebraically dependent elements
- algebraically dependent elements的基本解释
-
-
代数相关元
- 相似词
- 更多 网络例句 与algebraically dependent elements相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Basanite and tephrite from Mt. Crater, Cape Bird and Bonney Lake exhibit similar composition in major elements and trace elements, rare earth elements . They are enriched in MgO, TiO〓, transitional elements and compatible elements , and depleted in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements; Latite from Cape Rodeys and Cape Evens are different from basanite and tephrite, they are enriched in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements, and depleted in Mgo, TiO〓, transitional elements and compatible elements. Volcanic rocks in five regions have the same isotopic ratio of 〓Sr/〓Sr (0.703115-0.703334) and 〓Nd/〓 Nd (0.512892-0.513076), however,〓Pb/〓Pb ratio in volanic rocks from Mt. Crater, Cape Bird and Bonney Lake is lower than those of Cape Rodeys and Cape Evens.
在主元素氧化物和微量元素、稀土元素含量上,克雷克特山、鸟角和博尼湖南岸的碧玄岩、碱玄岩成分比较类似,均具有较高的MgO、TiO〓、过渡元素和相容元素,较低的SiO〓、Al〓O〓、K〓O、Na〓O、不相容元素和稀土元素;罗德角和伊万思角安粗岩雷同,它们具有较高的SiO〓、Al〓O〓、Na〓O、K〓O、稀土元素和不相容元素,较低的MgO、TiO〓、过渡元素和相容元素,但五地区火山岩几乎具有一致的Sr、Nd同位素比值,〓Sr/〓Sr=0.703115-0.703344、〓Nd/〓Nd=0.512892-0.513076,在Pb同位素比值上,五地区的〓Pb/〓Pb=18.664-19.913,其中碧玄岩和碱玄岩比安粗岩的比值稍低。
-
Interlayer oxidized zone can be divided accurately by Fe_2O_3, Fe_2O_3/FeO and U parameters. We can correct the field macroscopic color zoning by combining the macroscopic zoning and microscopic zoning. Univalent major elements components(Al_2O_3, SiO_2, K_2O, Na_2O) show remarkable activity at the process of interlayer oxidizing, their contents are variable and mingled in different zones and it can't be used in zoning. But we can speculate the developmental degree of interlayer oxidized zone and uranium mineralization according to the concentration trends and variation characteristics of sensitivity group, activity group and their ratios .(3)The comparatively steady elements such as lithiphile elements, sulfophile elements and high field strength elements change regularly at the process of interlayer oxidation except some radioactive elements. Trace elements and rare earth elements commonly enrich in thin rock clast such as mudstone, in which the enriched elements species are more than those in the whole rock, which indicate that the regeneration action in caulking matter are more deep than that in whole rock at the process of interlayer oxidation, and the reallocate intention of trace elements in main minerlized rock in Tuha basin are more intensive than that in Yili basin at the process of deposition ,diagenesis and later changes .
根据化学蚀变参数PC值和分离迁移位等将常量元素组分分为敏感组分组、活动组分组、次活动组分组和惰性组分组,不同组分可分别用于讨论层间氧化带低温地球化学中不同问题;敏感组分(变价元素组分Fe_2O_3、FeO)和U在层间氧化带中迁移富集规律明显,Fe_2O_3/FeOFe~(3+/Fe~(2+)比值具分带判别能力,配合U含量对层间氧化带进行较准确的分带,可克服野外宏观颜色分带偏差:提出Fe~(3+)/Fe~(2+)分带判别值在不同盆地、不同地段不同,除受氧化作用控制外,流体酸碱度不同也是重要因素的观点,对找矿实践有实际指导意义;活动组分(Al_2O_3、SiO_2、K_2O、Na_2O)在层间氧化作用过程中具有较明显的活动性,其含量值变化跳跃,在不同分带相互交织,不具分带指示意义;但利用敏感组分、活动组分及其比值在层间氧化带中的变化特征可推测层间氧化带发育的完善程度及其含矿性;次活动组分组(CaO、MgO、MnO_2)含量低,变化规律性差;惰性组分组(TiO_2、P_2O_5)含量低,活动稳定,可用来反映沉积物源特征。
-
This project studies the scale-dependent deformation behavior of the metal matrix composite, the void nucleation and void growth mechanisms at the micron/submicron scale. The main results are:(1) In prophase, growth and coalescence of the void embedded in the graded matrix are analyzed in detailed;(2) Based on the infinite solid model containing a micro-void, coupling effects of the void shape and the void size on the void growth are studied carefully, the results show that it seems to exist a critical equivalent void radius, which is associated with the material length. When radius of a microvoid is close to or smaller than the critical void radius, the micro-void growth rate is essentially eliminated;(3) The coupling effects of the particle shape and size on the mesoscopic stress fields within the particle and matrix are also investigated by introducing the conception of inclusion/matrix interfacial energy. The results show that the stress concentration factors within the particle and on the matrix/particle interface are also strongly size-dependent,so the void nucleation mechanism is size-dependent.(4) By employing a specific orthogonal curve coordinate frame and a 'kernel function' conception, a 'unified method'solving the spheriodal and spherical void problems is suggested; by this unified method, size-dependent plastic potentials of the porous materials containing the spheriodal or spherical voids are obtained, which extend the traditional Gurson model for the spherical void and GLD model for the spheriodal voids to the micron scale.(5) Based on the RVE model containing the spheriodal or spherical particles, the influences of the particle shape and size on the size-dependent mechanical behavior of metal matrix composite are studied.
中文摘要:本项目对金属基复合材料在微细观尺度下的尺度相关变形行为、孔洞形核及长大的机理和模型进行了研究,取得了如下主要结果:1)在前期研究中,探讨了基体的梯度分布对孔洞长大和聚合的影响;2)基于含孔洞的无限大体模型,探讨了孔洞形状和孔洞尺寸对其长大的耦合作用,结果表明:可能存在一个与材料特征长度相关的临界孔洞尺寸,当椭球孔洞的等效半径小于临界孔洞半径时,孔洞的长大受到明显抑制;3)通过引入基体/夹杂界面能的概念,分析了夹杂尺寸、夹杂形状对材料细观应力场的耦合影响,结果表明:颗粒内部和界面上的应力集中因子强烈地依赖于夹杂的尺寸和形状,因此,孔洞的形核机理是尺寸相关的;4)采用一种特殊的正交曲线坐标系和引入"核函数"的概念,"统一"地得到了含椭球和球形孔洞的材料的尺寸相关塑性势,它将传统的Gurson球形孔洞模型和GLD椭球孔洞模型推广到微尺度范围;5)基于含椭球和球形夹杂的体胞模型,初步研究了夹杂形状、夹杂尺寸对金属基复合材料尺寸相关力学行为的影响。
- 更多网络解释 与algebraically dependent elements相关的网络解释 [注:此内容来源于网络,仅供参考]
-
algebraically dependent elements:代数相关元
algebraically closed field 代数闭域 | algebraically dependent elements 代数相关元 | algebraically equivalent 代数等价的
-
algebraically dependent elements:代数相关元(素)
algebraically closed field | 代数闭域 | algebraically dependent elements | 代数相关元(素) | algebraically dependent set | 代数相关集