查询词典 residual errors
- 与 residual errors 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment
重金属含量均低于新鲜尾矿,但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%),往下大幅度降低,表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用,而次氧化带的淋溶作用造成了金属元素的大量流失;(4)与新鲜尾矿相比,硬化层中铅的可迁移性大大降低,硬化层之下尾矿样品中铅的可迁移性也不同程度降低,这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故;(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大,其中对锌的可迁移性影响最大,铜的可迁移性与铁比较相似,铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4);(6)为了减少尾矿污染和修复矿山环境,人们提出了各种不同的尾矿覆盖方案,本文的研究结果表明,这些方法不一定能够有效地阻滞污染元素的迁移。
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For non-Kolmogorov turbulence, the anisoplanatiam error, the angular correlation function of Zernike polynomials, the residual phase structure function and the long-exposure OTF after low-order modes correction are analyzed.
分析了非科尔莫戈罗夫湍流情况下,自适应光学系统低阶模式校正时的非等晕误差、泽尼克系数角相关函数、残余相位结构函数以及长曝光光学传递函数,并定义了一个新变量模式校正因子,用来有效评价目标非等晕误差对低阶模式校正自适应光学系统补偿效果的影响。
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Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.
首先基于经典层板理论,将复合材料层板的弹性问题化归为均匀各向异性板来求解;采用各向异性体平面弹性理论中的复势方法,以Faber级数为工具,给出了有限大含椭圆核各向异性板弹性问题的级数解形式;利用杂交变分原理,成功导出含椭圆核各向异性板杂交应力有限元,并用算例验证了该单元的可行性和有效性;采用含刚度折减椭圆形弹性核的冲击损伤模型,引入基于特征曲线和Yamada-Sun破坏准则的点应力判据,建立了含损伤复合材料层板剩余强度的分析方法;通过数值计算详细讨论了各种几何参数对损伤层板应力分布、剩余强度的影响,得到了一系列对工程应用具有实用价值的结论。
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Based on the complex potential method about the plane theory of the elasticity of an anisotropic body, stress distributions in the plate with multiple cracks are obtained by using the conformal mapping and the Faber series expansion. The equivalence yield stress considers the effect on plastic zones. The Swift strip yield criteria is used to predict the residual strength of plate containing multiple collinear cracks.
采用各向异性体平面弹性理论中的复势方法,应用保角映射技术和Faber级数展开,导出在任意载荷作用下多裂纹板应力场的级数解,引入当量屈服应力修正裂尖塑性区,并利用Swift韧带屈服准则建立含共线分布多裂纹结构的剩余强度分析模型,计算结果与试验结果吻合较好。
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Antimicrobial peptide was firstly found by Sweden scientist Boman HG in 1970s, which was a potential substitute of antibiotics, because it was with broad-spectrum antibiosis and no- residual.
抗菌肽是上个世纪70年代由瑞典科学家Boman H G首次发现的,其具有优良的光谱抗菌性能,无残留,不会导致耐药菌株的出现,是目前抗生素类较有潜力的替代品。
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The final rinse may contain an antichlor to remove the residual chlorine from the fabric.
最后的水洗应加脱氯剂以去除织物上的残余氯。
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Degradation of long residual herbicides and antidotal effective of TNA were tested by means of using bioassay methods combined in greenhouse and field test.
利用生物化学的方法研究谷胱甘肽转移酶、乙酰乳酸合酶、苯丙氨酸解氨酶和超氧化物歧化酶在除草剂作用下的反应和作保灵对相关酶、GSH,脯氨酸和多酚含量调控作用。
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For a system with time delay, a approximate formula for calculating the residual servo variance is derived.
对于存在时间延迟的自适应光学系统,推导了计算大气湍流控制残余方差的近似公式,并给出了有探测噪声情况下确定系统最优控制带宽的公式。
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It is shown that under the supervision of the monitoring functions, the switching of control signal will stop after a finite number of switching and the tracking error will converge to a residual set that can be made arbitrarily small by choosing some design parameters sufficiently small.
进而证明,当被控对象相对阶大于1、高频增益符号未知时,在监控函数的监测下,相关控制信号经至多有限次切换后将停止切换,跟踪误差将收敛到一个残集内,且该残集可通过减小某些设计参数而变得任意小。
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Tool paths, and working procedure effecting machining residual stress as well as the law of its releasing were analyzed systemically by using three-dimensional Elasto-plastic FEM, which can optimize the tool paths and make the working procedure more rational.In the course of FEM simulation, the birth-death element arithmetic was introduced into simulating material remove, and the kinetic Load-step was used to simulated tools work.
第四,在上述研究的基础上,利用三维弹塑性有限元技术系统地分析了铣削力要素下铣削加工中走刀路径对已加工表面残余应力分布状态的影响规律以及铣削加工工序间残余应力的相互影响规律,为优选出较为合理的走刀路径和加工过程中安排去应力工序提供指导。
- 相关中文对照歌词
- Hymn For The Dead
- The Radio Is Broken
- Riffmaster B
- Doubt
- History
- Goliaths Disarm Their Davids
- Know How
- I Need You
- You Can't Stop Thinking About Me
- Hatin Nation
- 推荐网络例句
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Go to your desktop and right click in a blank space.
请到您的桌面,然后右击一个空白。
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Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.
度母出现在佛教,耆那教里面,尤其是西藏的喇嘛教,作为一系列的陈列阵容;神秘的女神,创世之母,人类横过生命之海洋的女性保护者。
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The Broadband Integrated Service Digital Network is very suitable for implementing multiple service network.
宽带综合业务数字网B-ISDN是实现多种业务,多种功能综合服务的理想网络之一。