空间与时间的
- 与 空间与时间的 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 surface morphology of the nacreous layer on different parts of Pteria Penguin and blister pearl from Sanya, Hainan Province, are observed directly by using environmental scanning electron microscope.
研究结果表明,该地区海水成因的珍珠层中有机质薄膜对珍珠层的螺旋生长成核和结晶取向起到了严格的调控作用,它为文石或方解石晶体的生长提供一个有效的定位或成核中心;有机质与文石微晶在时间和空间上的螺旋交互生长具有周期性,从而产生珍珠层表面的这种结构形态。
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In the design of SMCOS, introduce the software and hardware developing platform of SMCOS at first, then describe the system characteristic and hierarchical structure, tell the course of design and implementation of the software system of the SMCOS finally, mainly tell software architecture, design method to command interpreter, transmission module and file management, especially carry on deep explanation and discussion to the security environmental management of SMCOS, design the secure pseudorandom number generator according to systemic characteristic; Implement AES cryptographic algorithm, and optimize in term of the characteristics of AVR platform, make it reach the faster speed of encryption in case
在SMCOS的设计中,首先介绍了SMCOS的软硬件开发平台,然后描述了系统特性及其层次结构,最后讲述了SMCOS的软件系统设计与实现过程,主要讲述了SMCOS的软件架构、命令解释器、传输模块以及文件管理器的设计方法,特别对于SMCOS的安全环境管理进行深入的讲解及探讨,针对系统特点设计了安全的伪随机数生成方法;实现了AES加密服务模块,并针对AVR平台的特点进行了优化,使其在占用较小的代码空间的情况下达到较快的加密速度;改进了PIN的认证方法,对其传输过程提供了安全保护并采用了安全的验证方式以避免可能遭受的攻击:设计了相互认证命令,缩减了认证过程的时间消耗并提高了安全性。
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It will expose the design problem of maintainability of civil airplane to the early stage of design. This paper discusses the composing of the virtual maintenance environment, builds non-immersion virtual maintenance environment of undercarriage, and establishes a part library management system. The characteristic of maintainability models and maintainability analysis based on virtual technique is researched to give the maintainability frame model of civil airplane virtual maintainability analysis. All levels of maintenance time model and maintenance man-hour model are established. Analog-Huffman code is proposed to optimize space partition method in traditional collision detection arithmetic."Maintenance therblig"is brought into the broken down of maintenance tasks, and the new maintenance tasks broken down method is proposed. The demands of human measure, position, and equipment layout in human engineering are discussed, and the verification methods of human measure, position and equipment layout in virtual maintenance are given. Basic principle and verification procedure of maintainability virtual verification is developed primarily, and the reachablity, the visibility, and posture-comfortability are verified.
本文论述了虚拟维修环境的组成,构建了某型飞机主起落架非沉浸式虚拟维修环境,建立了维修对象的零件库管理系统;研究了基于虚拟技术的维修性模型特点及维修性分析流程,给出了基于虚拟技术的民机维修性分析框架模型,并结合传统维修性模型,建立了各级维修时间模型和维修工时模型;提出类HUFFMAN编码,结合人因工程的要求,优化了传统碰撞检测算法中的空间分割法,使之适用于柔体;在维修性分解中引入"维修动素",给出了与CATIA、DELMIA等应用软件结合紧密的维修任务分解方法;论述了人因工程中对人体尺寸、姿势、设备布局的要求,给出了虚拟维修中人体尺寸、姿势分析、民机内设备布局的验证方法;初步制订了维修性虚拟验证的基本原则和验证程序,并结合具体实例对可达性、可视性、干涉性以及人体姿态舒适性进行了验证,较清晰、真实地反映了维修人员的维修状态。
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The partial least-squares regression model is built up to forecast crop leaf water potential of estival maize.Thirdly, atmosphere aspect, the low water age has been forecasting by R/S method of fractal theory in Si Chuan middle region. The chaotic behavior of agriculture meteorologic factors (average temperature, max temperature, min temperature, temperature of the earths surface, evaporators, precipitation, relative humidity, sunlight time) time series is investigated using the phase-space reconstruction technique, and the delay time and relation dimension and min embedding dimension and Lyapunov exponent and Kolmogrov entropy is calculated. The atmosphere water potential is calculated by surveyed data, and the day change law of atmosphere water potential and the relation between it and sun radiation has been discussed.
第三,关于大气方面,利用分形理论中R/S分析法对川中丘陵区的枯水年进行了预测;利用混沌理论的重构相空间技术,确定了农业气象因子(旬平均气温、最高气温、最低气温、地表温度、蒸发量、降水量、相对湿度、日照时数)的延时、关联维数、最小嵌入维数、Lyapunov指数、Kolmogrov熵,从而证明了以上各农业气象因子的时间序列具有混沌特性,为利用混沌理论预测各气象因子提供了科学依据;利用田间自动气象站的数据计算了大气水势并探讨了大气水势的日变化规律以及大气水势与太阳辐射的关系。
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After hears the yellow Jinlong commander in chief's order, already succeeded the hook to live this planetoid the starships, after passed through the very short time, had achieved with the planetoid the similar speed, likely the human rode in the acceleration the airship to be same, starts the anchor chain which back and forth vibrated this time already to pull taut, and started to maintain stably, all starship pilot, already not in the worry planetoid surface more than 1200 degrees high temperatures, the thick fog group which as well as raided intermittently, after received the order then the rapid start automatic hinge machine, to this planetoid superficial fast advancement, in order to set aside the enough debarkation space for the second interspace group,This time by far looks, the entire starry sky scene, looks like a big spider to lead only to creep along innumerably small spider such, has filled the mysterious visual effect, lets the human feel incomparably shocks!
在听到黄金龙总指挥官的命令后,已经成功钩住这颗小行星的星际飞行器们,在经过很短的时间后,就与小行星达到了同样的速度,就像人乘坐加速中的飞船一样,开始来回抖动的锚链此时已经绷紧,并开始保持稳定,所有星际飞行器的驾驶员,已经不在顾虑小行星表面1200多度的高温,以及阵阵袭来的浓雾团,接到命令后便迅速启动自动铰链机,向这颗小行星的表面快速推进,以便给第二星际小组腾出足够的登陆空间来,此时远远望去,整个星空场面,就像一只大蜘蛛带领着无数只正在爬动中的小蜘蛛那样,充满了神奇的视觉效果,让人感到无比震撼!
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The paper discusses five key points in the qualitative reconstruction: 1 timely, to combine a study of "reversed succession", 2 spatially, to synthesize a study of "inversion tectonics", 3 to emphasize significance of structural restoration in palaeogeographic reconstruction, 4 reformation events in the period of basin formation serving as a link between past and future, and 5 a study on basin geodynamics matched with the orogenic geodynamics.
文章讨论了定性重建中的5个要点:l时间上,要结合&反序&的研究,2空间上,要结合&反转构造&的研究,3强调构造复位在古地理重建中的意义,4盆地建造阶段中的改造事件所起的承前启后作用,5盆地动力学与造山动力学的结合研究。
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Induced precursory anomalies have 7 main features,i.e.diversity of types,the nonlinearity correlating with the change of rain and groudwater,the periodicity and seasonal feature of occurrence,hierarchical feature of variation,tussocky feature in temporal distribution,broad area in...
诱发前兆异常具有 7个主要的特征,即种类的多样性、与降水及地下水变化关系的非线性、发生的周期性和季节性、变化的层次性、时间分布的成丛性、空间分布的大区域性以及多种手段异常变化的时空关联性等。
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Depending on this thought, and according to the relating principles of the science about system, we carried through the initial creating thought about innovation , which have already been discussed frequently by the experts. The innovative elements are the most radical factors in the innovative system, which are also the basal ingredients that creating the system. Complexity and uncertainty are the intrinsic characters of the factors, which endow the innovative activities with insignificance of unfolding; the mechanism of non-linearity makes these elements to produce all kinds of affiliations, subsequent the mechanism of conformity coordinates as well as colligates and blends and advances on the basis of non-linearity, thereby the innovative behaviors achieve the leap in the affects and functions, so the systematic affects and functions forms, the innovative behaviors construct the practical framework in the landscape and portrait orientation; in fact, the process of the systematism of innovation is human beings social behaving, so, the evolvement of the systematism of innovation possesses the essential natures of opening and arrangement as well as self-organizing and rushing, which are the principles of evolvement.
我们就是立足于这一思维方式,运用系统科学的有关原理,对近几十年来被学者专家频频讨论的词——创新系统进行了生成性的初步思考:创新要素是创新系统的最基本的因素,也是生成创新系统的基本因子,复杂性和不确定性是创新要素与生具有的内在秉性,而正是这些秉性的存在才赋予了创新活动以开展的现实意义;非线性机制使得各创新要素之间产生着千丝万缕的联系,整合机制又在非线性机制的基础上进行整理、综合、融会和提升,从而实现了创新行为在效应和功能上的飞跃,形成了创新的系统效应和功能,创新行为在时间和空间上建构着系统的实践结构;创新系统化毕竟是人类的社会实践行为,在创新系统化的过程中创新主体要积极地使其具有开放性、层次性、自组织性和涌现性,这也是创新系统化的运行理念。
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The influence of charging parameters (such as charging voltage, charging time and charging temperature, etc.) on piezoelectricity and its thermal stability of cellular polypropylene film electrets was studied by means of contact charging and constant voltage corona charging methods and the thermal stimulated discharge technique.
通过接触法充电、恒压电晕充电,以及开路热刺激放电技术,对充电参数(例如充电电压,充电时间和充电温度等)对聚丙烯蜂窝膜驻极体的压电性及其热稳定性的影响的研究,并从孔洞型薄膜压电体的材料结构和理论模型出发,讨论了这些参数对其影响的原因,分析了与压电活性密切相关的空间电荷的动态特性。
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Thirdly, it introduces the theory of the imagesegmentation and frequent segmentation technique. The aim of the imagesegmentation is to mark off the interested region of the image, which is done to thecorresponding image processing to reduce the operation time and save the storagespace. At last, it mostly introduces the compress technique based on the wedgelet, andcompares the CART model which is introduced by Donoho and the improved modelby Romberg et.al. with the model of the article, then compares the image ofprocessing based on the three methods.
然后,介绍了图像分割理论和常用的分割技术,图像分割的目的是划分出感兴趣的图像区域,进行相应的图像处理,减少运算时间和节省存储空间;最后,主要介绍了基于伸长小波压缩的技术,将目前主要的算法----Donoho提出的CART模型和Romberg等人基于此的改进模型,与本文所提出的算法模型进行了比较,并对三种方法处理的效果图作了详细的比较。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。