查询词典 research and studies
- 与 research and studies 相关的网络例句 [注:此内容来源于网络,仅供参考]
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There are 6 chapters inside of the thesis:(1) Interpretation of the motivation of research.(2) Analyzing of correlation documents and starting to construct a framework of criticize and analyze of "public art".(3) Discussing the forming of creation ideas.(4) Analyzing the influence results of public from the exposition of society.(5) Discussing the interactive relationship of artist, works, commonalty and art criticism from the installation process of works. Point out the meaning of society and the possibility of communication in the criticism of public art.(6) Reference, review and the propositions for further studies.
本论文共分六章,第一章说明本研究的动机、目的、范围、内容、方法与流程;第二章针对相关文献分析并初步建立公共艺术的评析架构;第三章则就公共艺术的创作意念生成进行探讨;第四章则就公共艺术的社会解读来分析影响大众观赏公共艺术的因素;第五章从公共艺术设置过程对社会的影响,探讨创作者、作品、大众与艺评的互动关系,并尝试提出公共艺术评论对社会的意义与沟通的可能;第六章为本研究的结论与检讨,并对后续研究提出建议。
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Radioactive decay studies have found a kinds of elements can be α or β decay and the decay into another element, while the α-decay product of -α-rays became one of the deep structure of the material means of .1911, the Rutherford and others bombarded atoms with α-rays observed wide-angle deflection to determine the nuclear structure of atoms and nuclei was first proposed the term .1919 year, Rutherford and others have also found that with α-ray bombardment of nitrogen will release the nuclear protons, this is the first time Artificial realization of a nuclear reaction, after the bombardment of nuclei with the radiation caused by nuclear reaction method to become the primary means of research in nuclear.
放射性衰变研究发现了一种元素可以通过α衰变或β衰变而变成另外一种元素,而α衰变的产物——α射线又成了人们探讨物质深层结构的手段。1911年,卢瑟福等人用α射线轰击原子、观察到大角度偏折,从而确定了原子的有核结构,并首次提出原子核这一名词。1919年,卢瑟福等人又发现用α射线轰击氮核会放出质子,这是首次用人工实现的核反应,以后用射线轰击原子核来引起核反应的方法逐渐成为研究原子核的主要手段。
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The first is the introduction, which introduces the background and significance of topic ,and introduce the definiens of asset-banked securities and the development of asset-banked securities at home and abroad, and the studies of asset-banked securities, to point out that the study of the accounting for asset-banked securities and special purpose entities is a relatively unfamiliar topic in china ,which has not form a fairly complete theoretical system, and then describes the research methodology and the innovation of this paper .
论文共分五大部分,第一部分绪论介绍了选题背景和意义,介绍了资产证券化的涵义及国内外发展现状、国内外的研究综述,指出对资产证券化会计与特殊目的实体的研究在中国还属于比较陌生的课题,没有形成比较完善的理论体系,最后,就本文的研究方法及创新点作了初步论述。
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This makes more and more people pay more attention to studies and applications of numerical simulation in thermal recovery. In this research, we have developed a reliable mathematical model for thermal recovery, which takes a full consideration of the effect of viscos, gravitical and capillary forces on the three-phase flow of gas, water and oil, the effect of the temperature on the medium characteristics of liquid and solid, the phase equilibrium of gas-liquid in each component, heat transportation including connection, conduction and radiation as well as heat losses in both the overburn and underlying strata. In the space discreation of the mathematical model, we have proposed a new method based on the improvement of the conventional nine-points difference approximation, which has a higher difference accurancy.
本项研究以热力采油的主要机理为基础,充分考虑在粘性力、重力和毛管力作用下油水气三相流动,考虑温度对各种流体和固体介质物性的影响,考虑每一组分中汽液两相的相平衡,考虑热在地层中的传导、对流和辐射以及上下盖层的热损失,利用热力学第一定律、质量守恒定律和流体迁移定律,建立了正确可靠的注蒸汽数学模型;在对数学模型进行空间离散时,利用控制有限体积积分法,对以往的九点差分近似作了合理的改进,使其具有较高的差分近似精度:结果表明,该公式的近似精度要比以往文献中所给的九点差分近似精度高,可以认为,在油藏数值模拟中,如果遇到非均质情况,使用这种九点差分近似更合理。
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The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.
本论文的主要工作包括以下几个方面:(1)在对粒子场测量的相关理论和具体方法进行综述分析的基础上,提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路;(2)研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统,并使其实现了对粒子场粒径分布的测量功能;(3)研制了基于粒子运动轨迹的速度场重建算法,获取了细水雾雾场的速度分布;(4)研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统",该系统既可分析给出粒子场的粒径分布直方图和平均粒径,还可给出粒子的数目以及最大、最小粒径等信息;(5)建立了一细水雾发生系统,并应用上述方法对不同压力条件下细水雾系统的雾场特性(如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等)进行了实验测量研究;(6)对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析,并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证,同时对其局限性进行了分析讨论;(7)对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。
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The paper induces and analyzes research method of the tooth, including Method line of the tooth theory,Envlopment theory, Camus theory, Circling cluster theory and so on.Based on the past theories,the new measure to deduce the chain wheel tooth equation of roller chain at high speed,Circling cluster and envlopment theory,is proposed by analyzing basic concept of equidistant curve and Willis theory.Following the presentation of drawing lessons from traditional roller chainof the change of stanza line distance. A new type of roller chain at high speed is given in the paper.The paper studies deeply structural characteristics, the change of stanza line distance,separation between plank and bore and so on.According to design requst of roller chain at high speed and the study ofH_y--V_0 tooth chain,the impossibility that Quasi-conjugage engagement theory isrealized by the engagement of roller chain at high speed from the aspect of theory is decribed.
作者综述了高速滚子链国内外研究现状,并进行了以下研究工作:归纳分析了齿形法线法理论、包络法理论、卡姆士定理、圆族法理论等齿形研究方法,在此基础上,结合齿形啮合基本定律,分析了等距曲线的基本概念,提出了一种推导高速滚子链链轮齿廓方程的新方法—圆族包络法;在借鉴普通变节距滚子链的基础上,本文提出了一种新型的高速滚子链链条,深入研究了高速滚子链链条结构特性及其变节距、板孔中心分离等特性。
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Since the High-Lying Vibrational excited levels and dissociate behavior of gas diatomic molecules: H2, O2, N2 and CO are very important in actual studies and applications, using the algebra method and the algebra energy method to obtained full vibrational energy spectra {E} and molecular dissociation energies are base on limited experiment energy level {E} in this paper. The study result has provided the important high vibrational excited state energy level and the reliable dissociation energy data for the research partial dissociating gas physics and the chemical property.
鉴于气体双原子分子H2、O2、N2和CO的高振动激发态能级和离解行为在实际研究中的重要性,本文应用代数方法和代数能量方法,以部分气体双原子分子有限的实验能级[E]为基础,获得了H2-X1Σ、O2-A^3Σ、O2-c1Σ、N2-X1Σ和CO-X^1Σ共5个电子态的完全振动能谱{E}及其分子的离解能,为研究部分离解气体的物理和化学性质提供了重要的高振动激发态能级和可幸的离解能数据。
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On the basis of gathering data from previous study and researching the stabilization and reinforcing technique of the typical high slope in west approach road, through in-situ tracking investigation and monitoring to the west road, and by way of studying the interaction between slope body and anchoring structure, monitoring data, the result of grey prediction and fuzzy comprehensive assessment, and adopting the idea of integrating prototype investigation and indoor experiment analysis, mechanism analysis and simulation research method, safety factor analysis and interacting relationship study, in-situ monitoring and safety evaluation, and using the theories of engineering geology, geotechnique, rock body mechanic, finite element method and fuzzy mathematics, this paper studies the long-term safety of the typical high slope specially.
本文在收集前人研究资料的基础上,采用原型调研与室内分析相结合、机制分析与模拟研究相结合、安全系数分析与相互作用关系研究相结合、现场监测与安全性评价相结合的思想,通过对鹧鸪山隧道西引道典型高边坡的现场跟踪调研与监测,运用工程地质、岩土工程、岩体力学、有限元理论、灰色系统理论、模糊数学等先进理论和方法,在对西引道典型高边坡的稳定性、整治与加固技术研究的基础上,通过边坡地质体与锚固结构相互作用分析、边坡监测数据分析、边坡变形灰预测分析以及模糊综合评判等途径,重点对治理后的典型高边坡的长期工程安全性进行了系统深入的研究。
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This paper reviewed the relationship between fluoridated milk and dental caries prevention derived from the preceding academic research. Several topics, including milk fluoridation, fluoridated milk in animal and human clinical studies, the effect of fluoridated milk to fluoride concentration in saliva and dental plaque, the bioavailability of fluoridated milk, and the effect on human teeth were discussed.
本文回顾有关牛奶与龋齿间关系以及牛奶氟化以预防龋齿的文献,从牛奶氟化的最初想法,到氟化牛奶的动物实验、人类临床实验,进一步研究对唾液、牙菌斑中含氟量的影响,以及氟化牛奶的生物可得性,最后探讨对人类牙齿的抗酸溶解力的改变。
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Firstly, the research studies the coding rule of the PDF417 barcode and designs related computer code algorithm, with making it programmed, and completes the coding part of the system software. Next, the coding and decoding principle of Reed-Solomon error-correcting code is briefly introduced. According to thecoding and decoding principle in galois field GF(929), to analyze and study its practical application with emphasis in this topic. Then, the PDF417 barcode decoding process is analyzed and studied detailed according to the barcode coding principle, with the corresponding realization method designed, improving the design in theory aspect by using material example, at the same time programming the design method to complete the decoding part of the system. Finally, validated the system program in the practical application of image information aspect, by using the nonrepeatability and the randomicity characteristic of Julia mark shape artwork.
本课题首先研究PDF417条码的编码规则并设计相关的计算机编码算法使其程序化,完成系统软件的编码部分;其次,简要介绍Reed—Solomon错误控制码的编码与译码原理,在伽罗瓦域GF(929)内根据其编译码的原理重点分析与研究其在本课题中的实际应用;然后根据条码的编码原则对PDF417条码的译码过程进行详细的分析与研究,并设计出相应的实现方法,利用具体实例对设计方法进行理论方面的实践同时将设计方法程序化完成系统软件的译码部分;最后利用Julia集分形图形的不可重复性和随机性的特点对系统软件在图像信息方面的实际应用进行了验证。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力