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Under the assumptionthat the covariant derivative of the sections satisfies the Lipschitz condition with L-averagealong the piecewise geodesic, a unified convergence criterion for Newton\'s method and theradii of the uniqueness balls of singular points around the initial points of sections are es-tablished.

本章的主要内容包括以下两个方面:当截面的协变导数满足沿着分段测地线的关于取正值非减可积函数L-平均的Lipschitz条件条件时,本文给出了关于截面的Newton法收敛的统一判据,同时给出了在初始点附近的关于截面的奇异点的唯一性球的半径的估计。

The effective prediction space concept is established, On the base of these, this paper deduces two representations' evaluating equation, one evaluates the prediction error and the other evaluates the prediction error in limited space. First, the error transfer characteristic among subsystems at different space locations is analyzed, and the direct transfer characteristic from discrete standard measure space to the workpiece measure space under measured in measure system is proven. Second, the error reconstruction condition and method of mapping from discrete standard measurement system to continuous standard measurespace are analyzed.

分析了不同空间位置子系统间的误差传递特性,证明了在测量系统中离散标准量值空间向被测量工件量值空间的直接传递性;分析了离散标准量系统向连续量值空间映射的误差重构条件和方法;基于测量样本的有限距离的平稳性,证明了预报模型对动态测量误差的有限收敛性和预报误差的可测度性,进而证明了以离散标准量值系统对被测工件预报修正的可行性和合理性。

Besides the previous research finding, the ideal gas equation and ideal gas, fluid dynamics and thermal dynamics were also included in the derivation of the equation of state of the detonation Wave.

目前国内可量测爆震波速度的仪器并不普遍,因此爆震波速度值得之不易,想利用爆震波速度来探讨爆破震动的特性更是难上加难,本文将依据理想气体方程式、流体动力学、热力学、理想气体多变定律和相关的经验公式,结合冲击波和爆震波传递时质量、能量和动量守恒的理论,推导爆震波的状态方程式,并藉由爆震波的状态方程式了解爆震波的特性及其应用。

The concept of digital life was first presented in computer simulation experiment by Thomas.S.Ray. Based on it, the theory knowledges were introduced such as complex adaptive system and Agent model-building. Then two kinds of different digital lives and their coexistence environment were constructed. Nature lives' most foundational biological phenomenas like reproduction and annihilation were simulated. The interactive behavior between individual and community was observed by visualization windows. Finally, the inscrutability and emergence of the results were attained, and the simulation for two digital lives with Swarm was accomplished.

数字生命的概念是托马斯雷最早在计算机上模拟实验提出的,以此为指导,介绍了复杂适应系统、Agent建模等理论知识,利用Swarm仿真平台构建了两种异类数字生命及共同生存的环境,模拟自然界生命体最基础的繁殖歼灭等生命现象,通过可视化窗口观察生命体个体及群体间的交互行为,得到结果的不可测性和突现性,实现了两种数字生命的Swarm仿真。

Holistic naturalism is the theoretic prerequisite of Quine's theory of linguisticrelativity,from which Quine advances a serial of indeterminacy theses and doctrines andshows the relativity of language:the doctrine of underdetermination of theory showsthe relativity of whole describing of language;the thesis of indeterminacy of translationshows the relativity of linguistic paraphase;the doctrine of inscrutability of referenceshows the relativity of linguistic reference;the transformation of ontology shows thereducibility of ontology in the language.

奎因语言相对性理论的哲学前提是整体论自然主义,正是由此出发奎因阐发了一系列的不确定性论题,展现了语言的相对性:理论的不完全决定性学说表明了语言整体描述的相对性;翻译的不确定性学说表明了语言解释的相对性;指称的不可测知性学说表明了语言指称的相对性;本体论的变换表明了语言中本体论的可化约性。

The representative minority cultural relic-pottery relic of Buyi minority and the two wooden masks is taken as the research object. Firstly, Hiscanner laser scan detector was adapted for data collection, and then obtain point cloud data which could be recorded on disc for permanent saving was obtianed; Furthermore, the new popular reverse engineering software Geomagic for some disposals of point cloud data was adopted in data condensing, data mending, data filtering, feature line picking up to obtain NURBS surfaces; and then the error between the reconstructed CAD model and the point cloud data was evaluated to guarantee the precision of surface reconstruction to keep the relics keep its original appearance. In the end, the NURBS surfaces are imported to 3D software Solidworks and entities of CAD are generated by surface sewing, mold loft and ablating and other instructions.

选用有代表性的贵州少数民族文物―布依族酒壶、水壶以及木制傩戏面具作为研究对象,采用Hiscanner激光扫描测头对其进行数据采集,扫描得到的点云数据可刻录到光盘上作为文物数据永久保存;更进一步地,采用目前流行的逆向工程软件Geomagic studio对点云数据进行数据精简、数据滤波、数据修补、提取特征线等处理后得到NURBS曲面;为保证曲面模型重建的精度,在曲面重建模型后对其误差评价,通过控制误差的方式指导曲面模型重建,使重建的文物曲面模型能真实完整地反映原状;最后,在功能强大的三维造型软件Solidworks中导人重构的NURBS曲面进行曲面缝合、放样等,将其生成实体CAD模型,并对模型的局部特征进行适当的再设计以实现文物实体模型的优化。

With eggs and children artemia were detedcted using nested-PCR. WSSV positive products could be detected in artemia, and DNA sequence of the product accords with the designed specific amplified one according to sequence analysis. The positive rates of wild brine shrimp and filial generation were 58% and 43%, respectively. However, it seems to be no regularity between parents and filial generations positive results. It may not judge whether WSSV could vertically transmit in artemia or not.

检测结果显示:卤虫中可扩增出特异性的、与引物设计吻合的DNA片段;DNA测序分析表明,扩增片段的DNA序列与白斑综合症病毒序列一致;野生卤虫携带白斑综合症病毒的阳性率为58%,实验条件下野生卤虫的后代的阳性率为43%;同一卤虫家系中,亲代与子代携带病毒的情况不完全一致,不能确定白斑综合症病毒可否通过繁殖在卤虫世代间进行垂直传播。

Analyses show that refractive index changeinduced by thermal effect is similar to the change induced by other effects for linearabsorption,if laser pulse width is far less than the characteristic time of sample,i.e.refractive index change is directly proportional to spatial part of incident pulse laserintensity,so time averaged nonlinear refractive index can be defined.

结果表明,当激光脉冲宽度远小于被测样品的特征时间时,对于线性吸收来说,其热效应产生的折射率变化与其它效应产生的折射率变化有类似的形式,即与入射脉冲激光光强的空间部分成正比。因而可定义时间平均非线性折射率。在这种情况下,可用通常的Z-scan法进行非线性折射率及热光系数的测量,所得结论符合以前的实验结果。

Computer micro-vision, Mirau microscopic interferometry, stroboscopic photography and laser Doppler vibrator are integrated into this platform. In-plane and out-of-plane periodic motion characteristics of micro-resonator are measured, and out-of-plane transient motion of micro-mirror is analyzed. In-plane displacement, motion phase and resonance frequency can be measured by integrating computer micro-vision with stroboscopic photography, and the repeatable accuracy of in-plane displacement is 30 nm.

实验结果表明,利用计算机微视觉和频闪成像技术能够实现微结构的平面位移、运动相位及谐振频率等周期运动参量的测试,位移的重复精度为30 nm;利用显微干涉和频闪成像技术可实现微结构的离面位移及表面扭曲等周期运动参量的测试,位移的重复精度为3 nm;激光多普勒测振技术具有在频域上对微结构瞬态运动进行分析的优点,是时域上周期运动测试的重要补充。

After hot carrier stress, devices were evaluated by using positive bias temperature instability test. With different trends in the time evolution of threshold voltage shift and sub-threshold swing degradation, it is found that electron trapping in the HfO2 is the major reason for the threshold voltage variation. Compared to control devices, devices with fluorine and nitrogen exhibit good passivation at the interface. Devices were measured at an elevated temperature.

在热载子效应后,接著进行正偏压温度不稳定的量测方法,从随时间变动的临界电压以及次临界摆幅,发现临界电压的变动趋势与临界摆幅变动趋势不符合,表示二氧化铪的原生缺陷补捉是造成临界电压变动的主因,而临界摆幅的变动也可得知有氟,氮处理元件具有比较好的介面可靠度。

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推荐网络例句

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特,那个是爱朗。

Articulate the aims, objectives and key aspects of a strategic business plan.

明确的宗旨,目标和重点战略业务计划。