查询词典 absorbing set
- 与 absorbing set 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The materiel balance of Nitrogen and Phosphorus in the static examination shows: In eliminating of the nitrogen, Ipomea aquatica absorbing and the artificial medium nitrify contributing up to 31.8% and 38.7%; in eliminating the phosphorus, the contribution that Ipomea aquatica absorbing is 26.7%.
静态运行条件下的氮磷物料衡算显示:在总氮的去除中,空心菜吸收及人工介质反硝化的贡献分别达到了31.8%、38.7%;在总磷的去除中,空心菜吸收的贡献为26.7%。
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This thesis contributed to the comprehensive study of the Finite-Difference Time-Domain method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. The work includes mainly three parts: the study on the performance of PML absorbing boundary condition applied to pseudo low frequency electromagnetic problems; the validation of the FDTD method with PML absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies; the development of an improved alternating direction implicit finite-difference time-domain method.
在综合前人工作基础上,本文对时域有限差分法及其在开关电源辐射电磁场数值计算中的应用进行了系统的分析和研究,其核心内容包括:伪低频电磁场数值计算中PML吸收边界条件性能的研究;基于基准问题—电偶极子天线三维辐射电磁场,验证了本文构造的基于PML吸收边界条件的三维FDTD法及其计算软件,并应用于高频开关电源辐射电磁场的数值分析;提出了一种改进的交替方向隐格式时域有限差分法。
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The number of bacteria, fungi, ammonifier and nitrobacteria were positively correlated with the biomass of growing roots and absorbing roots, while the number of nitrogen-fixing bacteria was negatively correlated with absorbing root biomass.
细菌、真菌、氨化细菌和硝化细菌数量与生长根和吸收根生物量之间显著正相关;固氮菌则仅与吸收根生物量显著负相关;而纤维素分解菌与根系生物量的相关关系不显著。
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The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.
文中对汽车碰撞安全性的设计理论和方法进行了归类和总结,其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等;重点介绍了碰撞有限元法的基本理论和有关算法,涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等,探讨了有限元计算中的材料模型参数获取技术,开发了相应的材料试验装置及材料模型参数反求软件,在此基础上进行了基本的碰撞仿真算例和试验对比研究;文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性,指出了设计薄壁吸能构件时需要考虑的几个主要影响因素,即焊点、壁厚、横截面和预变形等;在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究,提出了吸能转向机构和自适应安全气囊的仿真研究方法;文中最后探讨了整车碰撞性能的设计与改进方法,提出了以理想碰撞特性为目标,采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法,并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究,所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车,研究结果表明,本文所提出的设计与改进方法是适用而有效的,具有重要的工程实用意义和价值。
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In the fifth chapter in Xingjian, the employment structure and absorbing elasticity coefficient of deviation degree Angle of result is in the development process, but on the whole of the tertiary industry in Xingjian obviously higher employment contribution in the primary and secondary industries, in the future development and will continue its important role. In Xingjian, the third industry sectors in the urban employment situation analysis, the result is, in recent years the development of traditional service industry in the employment of absorbing effect decreased progressively, contribution emerging service industry has become the main force of the employment and absorb a function is to keep this trend.
在第五章,在新疆第三产业就业的分析中,从就业吸纳弹性系数和结构偏离度的角度得出的结果是,在发展过程中虽有小幅波动,但整体上新疆第三产业的就业贡献作用明显高于第一、二产业,在今后的发展中并将继续保持其重要作用;在新疆第三产业各行业的城镇就业情况分析中,得出的结果是,在最近几年的发展中传统服务行业在就业吸纳方面的贡献作用逐步减退,新兴服务行业已经成为吸纳就业的生力军,并有保持这一作用的趋势。
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Because the fish drying Shrinkage small Shrinkage crack surfaces, more in Water, so the bibulous rate of early (see figure 4) soon, absorbing ability, 1.2 m in bibulous rate (Water absorption Measurement can reach 1 36), In the early EHD water are slower, bibulous rate in 30 m in later, when the water absorption speed enough time to also can achieve higher bibulous rate and natural drying EHD with dry bibulous rate basic same, in addition, natural drying and EHD dry fish good water resistance, 120 m in water can still keep complete shape after drying fish, but by 120 m in pieces after absorbing began.
由于热风干燥鱼的收缩率较小、表面有较多缝隙,所以在吸水初期的吸水速度很快(见图4),吸水能力很强, 120 m in 吸水率可达到1。 36; EHD在吸水初期的吸水速度均较慢,在30 m in以后吸水速度加快,当吸水时间足够时也能达到较高的吸水率,自然干燥与EHD干燥的吸水率基本相同,另外,自然干燥和EHD干燥鱼的耐水性好, 120 m in 吸水后仍能保持完整形状,而热风干燥鱼经120 m in 吸水后即开始溃散。
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Based on the perfectly matched layer absorbing boundary condition, a new form of PML absorbing boundary condition in cylindrical coordinate suitable for optical fiber is derived.
在已有的完全匹配层吸收边界条件的基础上推导了圆柱坐标系下适用于光纤计算的PML吸收边界条件。
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Spectral element methods for partial differencial equation is introduced in this study from viewpoint of the collocation approximation of Chebyshev polynomial. Wave Equation and its space discretization are deduced. Two time integral methods, central difference method and implicit Newmark method, are introduced, and their stability and applicability are also discussed in some details. The significance of absorbing boundary conditions in spectral element methods for Aeroacoustics is explained, and Clayton-Engquist-Majda absorbing boundary conditions is emphasized and introduced, then the discrete scheme of this boundary conditions is deduced and applied to spectral element methods for wave equation.
本文从Chebyshev多项式逼近理论出发,详细介绍了谱元方法求解偏微分方程的过程;推导了流体中的声波动方程并在空间上对其进行了谱元离散;详细讨论了两种时间积分方法──中心差分法和Newmark方法,分析了它们的稳定性条件,并从理论上对比了两种方法的优缺点和适用范围;将吸收边界条件推广应用于谱元方法求解气动声学问题中,重点介绍了Clayton-Engquist-Majda吸收边界条件的原理和公式,推导了该吸收边界条件的变分形式,并将其引入波动方程的离散形式中。
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The electric and absorbing wave properties of fibers in structural radar absorbing material are reviewed.
评述了结构吸波材料中纤维的电性能和吸波性能。
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Methods CNP absorbing MMC experiment was designed by geometric proportion method, while CNP-MMC desorbing MMC experiment was by diluting on 2 times. By the way of determining the free MMC concentration of the separating medium by pressurized liquor chromatography, we can get absorbing and desorbing rate.
采用等比法设计CNP吸附MMC实验,以2方式稀释CNP-MMC溶液设计CNP解吸附MMC实验,应用高压液相色谱法测定分离液中游离的MMC浓度,计算吸附率和解吸附率。
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- 推荐网络例句
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The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.
小蓝电容器具有很高的机会去充分地缩短了比较电解电容器,这是非常罕见的。
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In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.
在意大利的运动, 1513年和1515年,当瑞士赢得了胜利,诺瓦拉和marignan ,他担任军队的牧师。
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Program Director Meini Nicolai says it's a terrible development for the displaced in Darfur.
尼科莱说,对达尔富尔流离失所的人来说,这样的发展态势太糟糕了。