查询词典 storage element

The paper first presents a linear timeconsuming model of data access through the analysis of the virtual storage principle and then gives a decision-making method for data placement and access path selection problem. In the development of this method, the concept of equivalent of virtual storage cost is defined to evaluate the data placement cost in the FC-SAN virtual storage environment.

首先通过分析虚拟存储原理提出了一个数据访问耗时的线性模型；然后，就数据放置和访问路径选择提出了一个决策方法；并在进一步探讨这一方法的过程中，定义了&虚拟存储代价当量&的概念，用以评价FC-SAN虚拟存储环境中的数据放置的代价，从而为评价以及如何选择数据放置和访问路径提供了一种定量的手段。

As a promising energy storage element, Electric Double Layer Capacitor has thevirtues of both high energy density of battery and high power density of electrolytic capacitor.Moreover, it has long cycle life, high storage efficiency, sound temperature adaptability andenvironmental character.

双电层超级电容器兼具蓄电池能量密度大和电解电容器功率密度大的优点，循环寿命长、储能效率高、充放电速度快、高低温性能好、环境友好，具有卓越的储能潜力。

Optical pickup is one of the kernels of optical storage industry. It is used for all kinds of optical storage systems widely. It consists of optical collimator system, optical focusing system, servo error signal generating system and the enforce element of servo system .

中文题名DVD光学读取头关键技术研究副题名外文题名 On key technology of DVD pickup 论文作者王继平导师阮玉学科专业物理电子学研究领域\研究方向学位级别博士学位授予单位华中科技大学学位授予日期2003 论文页码总数173页关键词DVD 光学读取头光盘光存储馆藏号BSLW /2003 /TQ597 /2 光学读取头是光存储产业的核心器件，它广泛应用于各类光存储设备中。

In this study, symmetric successive overrelaxation preconditioned conjugate gradient algorithm is used to solve large linear system derived from 3-D finite-element resistivity forward modeling. Using row-indexed sparse storage mode to store coefficient matrix, the algorithm converges much quickly and requires much less storage of computer.

引入对称超松弛预条件共轭梯度迭代算法求解电阻率三维有限元计算形成的大型线性方程组，并有机结合系数矩阵的稀疏存储模式，使得三维有限元正演计算的速度大大提高而内存需求则大大减少。

A storage cell; an element of data storage that can hold one bit.

一个存储单元；保存一位二进制数的数据存储单元。

High protein feed can enhance airframe the absorption to zinc, keep in storage and feed of sex of metabolization; animal and the zincic absorptivity of inorganic, organic additive are taller, and the zincic absorptivity in plant sex feed is very low, zinc inside pig body excrete basically through bowel, along with eduction of fluid of pancreatic juice, bowel. 1.1 zinc inside pig body physiology function 1.1.1 raise collecting appetite zinc is element of the taste in saliva to make part, and the structural function with gustatory epithelial to oral cavity mucous membrane element and metabolization are influential action, affect the configuration of alveolus of the taste bud in glossal tit and function then, because this adds zinc,can enhance taste bud to taste sensitive.

高蛋白饲料能增强机体对锌的吸收、贮存和代谢；动物性饲料和无机、有机添加剂的锌吸收率较高，而植物性饲料中的锌吸收率则非常低，锌在猪体内的排泄主要通过肠道，随胰液、肠液排出。1.1锌在猪体内的的生理功能1.1.1提高采食量锌是唾液中味觉素的构成成分，而味觉素则对口腔黏膜上皮细胞的结构功能及代谢有影响功能，进而影响舌乳头中味蕾小孔的形态和功能，因此添加锌可增强味蕾对味觉的敏感。

The result indicates that the centralized storage model outperforms the decentralized one at polymorphic element and monomorphic element queries and vice at polymorphic reference and monomorphic reference queries.

结果表明查询多态元素和独占元素时，集中式优于分布式，而查询多态引用和独占引用时分布式优于集中式。

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。

Shadow effect can not be neglected for thermal analysis of spacecraft,Accroding to the angle between solar light and antenna orbit plane and its orbit location,analytical geometry method was used for accurately calculating solar radiation heat flux distribution of reflector surfaces.To analyze the temperature field under heat flux,the formulations of net radiation flux density between two gray elements and the net flux density of gray surface under external thermal flux were deduced.Based on the characteristic of space environment,the nonlinear temperature distribution in transverse direction of reflector shell self radiation were considered,the finite element formulations were given for orthogonal material layered shell by Galerkin method.A layered element including a inner heat source layer was proposed,and the finite element formulation expressed by DOF of the inner heat source layer were put forward with temperature and heat flux boundarys between adjacent layer.

单馈反射面赋形天线是未来星载天线发展的一个重要形式，分析了基于物理光学、几何光学和几何绕射理论的理想反射面辐射场；介绍了基于几何光学的反射面天线赋形方法；针对赋形过程中辐射场的快速分析要求，比较分析了基于物理光学的Fourier-Bessel和Jacobi-Bessel级数展开方法以及GB展开分析方法；利用GB展开快速分析方法在20GHz频率下对0.6m口径的天线进行赋形分析，实现中国大陆的30dB增益覆盖，通过数值计算研究了固定增益期望下的口径尺寸随频率的变化，以及频率为20GHz的不同尺寸天线赋形后的覆盖目标区域最大增益的变化情况。

In this paper we introduce a finite element program design method for solving 3 D thoracic electrical field distribution,based on Borland C++ for DOS and using isoparametric element of arbitrary hexahedron.In the process of solving final finite element equation,this paper uses the method of blocking and 'getting big number' to deal with total coefficient matrix and boundary conditions.

本文介绍了一种采用等参数8节点任意六面体单元来求解人体胸腔三维恒定电场分布的有限元程序设计方法，程序的编制基于BorlandC＋＋ForDOS的编程环境，在对最终形成的有限元代数方程的求解过程中采用了分块处理总系数矩阵及"取大数"处理边界条件的方法。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。