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双语推荐:一维

为了使高校一卡通有一个有效的运维管理体系参考模型,以便实现运维的流程化和规范化,从高校一卡通系统的实际运维管理出发,分析了一卡通运维管理的现状,指明了存在的问题。借鉴并拓展了ITIL理论与方法,提出了组织结构和规章制度的建设,构建了基于ITIL理论的一卡通运维管理体系。今后可作为一卡通运维管理的参考模型,来优化运维服务,提高一卡通运维管理水平。
In order to have an operation and maintenance management system to reference model,so as to realize a stream-lined and standardized operation management,some problems existing in the operation management are pointed out in this paper by the analysis of the present situation of campus card operation management. The theory and method of ITIL are referenced and extended. A construction of organization structure,rules and regulations is proposed. A campus card operation management sys-tem based on ITIL was built. It can be used as a reference model of campus card operation management to optimize operation and maintenance service,and improve the management level of campus card operation.

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多摄像机系统广泛应用于文化创意产业,其高精度标定是迫切需要解决的一个关键问题.新近出现的摄像机一维标定方法能够克服标定物自身遮挡,特别适合标定多摄像机系统.然而,现有的摄像机一维标定研究主要集中在降低一维标定物的运动约束,而标定精度较低的问题未受到应有的关注.本文提出一种基于变量含异质噪声(Heteroscedastic error-in-variables,HEIV)模型的高精度摄像机一维标定方法.首先,推导出摄像机一维标定的计算模型;其次,利用该计算模型详细分析了一维标定中的噪声,得出摄像机一维标定可以视为一个HEIV问题的结论;最后给出了基于HEIV模型的摄像机一维标定算法.与现有的算法相比,该方法可以显著改善一维标定的精度,并且受初始值影响小,收敛速度快.实验结果验证了该方法的正确性和可行性.
Accurate camera calibration is a pre-requirement for widespread applications of the multi-camera system in cultural and creative industry. The newly emerging one-dimensional calibration is very suitable for multi-camera systems since one-dimensional objects are out of self-occlusions. However, the progress in one-dimensional calibration mainly focuses on reducing restrictions on the movement of one-dimensional objects, and the calibration accuracy still needs to be improved. In this paper, an accurate algorithm for one-dimensional calibration based on the heteroscedastic error-in-variables (HEIV) model is proposed. Firstly, a computational model of one-dimensional calibration is derived. Secondly, noises in one-dimensional calibration are analyzed in detail using this computational model, and we draw a conclusion that one-dimensional calibration can be seen as an HEIV problem. Finally, the proposed algorithm is elaborated. This algorithm has the advantages of high accuracy, rapid conve

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一维纳米材料是指仅长度为宏观尺度,其他方向为纳米尺度的新型材料,在光电子、生物医用、纳米传感、纳米储能等诸多领域具有潜在的应用前景,已成为21世纪化学、物理学、材料学及生命科学等科技领域的研究热点。本文介绍了一维纳米材料的制备方法,阐述了一维纳米材料各种生长机理,总结了一维纳米材料的表征方法,及在物理、化学、机械、材料等领域的应用。
One-dimensional nanomaterials , which was a new special structure of substances on nanomerter size at only one dimension , had potential applications such as potoelectron , biological and medical , nano -sensing and nano?energy storage and so on.It became a hot investigation point and was very important to explore and development new synthetic technologies of 1-D nanometer materials for fundmental and application.Most kinds of synthesis techniques , growth mechanism , characterization methods and applications in physics , chemistry , mechanics , energy , etc.were summarized.

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可控源音频大地电磁CSAMT一维正演计算,采用汉克尔变换求解含有零阶和一阶贝塞尔函数的积分式,传统串行正演算法循环计算每个频率的视电阻率值,因克尔变化计算较慢。在Windows系统上使用Fortran语言和MPICH2工具,对频率采用对等模式,开发了基于MPI的CSAMT一维正演并行计算程序。通过与一维CSAMT串行程序的对比,验证了并行程序的正确性,为CSAMT一维全区资料反演和多维计算提供了并行研究基础。
CSAMT (Controlled Source Audio-frequency Magnetotellurics) one dimensional forward calculation finds integral solution with zero order and first order Bessel function by using Hankel transform.Traditional serial forward algorithm circularly calculate the apparent resistivity value of each frequency .Because Hankel transform is slow at calculation. In this paper, we use the Fortran language and MPICH2 tools in Windows system to find a peer-to-peer mode for frequency. A one-dimensional forward parallel computing program is developed for CSAMT,on the base of MPI. By contrast with the one-dimensional CSAMT serial procedures, we verified the cor-rectness of the parallel program. It can provide a parallel research foundation for the CSAMT 1-DFull-Region in-version and multidimensional computation.

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讨论了一维情形的Hamilton量的可因式分解性。在一维情况下,只有谐振子的Hamilton量才能因式分解而得出能量的升、降算符。
The possibility of factorizing one dimensional Hamiltonian is discussed. In one dimensional case,only the Hamiltonian of the harmonic oscillator can be factorized and the raising and lowering operators of its energy can be obtained.

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一维纳米材料由于其独特的物理、化学性质和在探针、器件等方面的巨大潜在应用,引起了人们广泛关注.水热法是合成纳米线、纳米棒、纳米带、纳米管和纳米电缆等一维纳米材料的有效方法.本文概述了国内外利用水热法制备一维纳米材料的研究进展.
One-dimensional nanomaterials have attracted intensive attention owing to their unique chemical and physical properties as well as the potential application in probes and devices. Hydrothermal synthesis has provided various routes for synthesis of one-dimensional nanomaterials, such as nanowires, nanorods, nanobelts, nanotubes and nanocables. The progress in hydrothermal synthesis of one-dimensional nanomaterials is reviewed.

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使用艾里(Airy)函数和转移矩阵方法精确求解了一维三角形多势垒结构的电子一维定态薛定谔方程,求出了在一维三角形多势垒结构中电子共振透射系数的一般表达式,并进一步研究了三角形结构势垒的共振透射系数与有效质量、势垒宽度、势垒高度及势阱宽度之间的关系。
The resonant transmission coefficient of triangular multi-barrier structure is presented based on an exact solution of the Schr?dinger equation by using Airy function and the transfer matrix ap-proach;Furthermore,we have also studied the relationships between the resonant transmission coeffi-cient and,respectively,the effective mass,the barrier width,the barrier height and the well width.

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为了快速地得到双模态燃烧室中的参数分布,采用射流模型,获得燃料混合分数的时均值、脉动值以及当量标量耗散率的时均值在双模态冲压发动机燃烧室中的三维分布;采用火焰面模型得到燃烧组分和释热分布,将三维信息通过流道横截面面积平均加入到一维非稳态计算模型,求解流动控制方程得到双模态燃烧室一维参数分布。通过不同类型算例验证,表明该方法能较准确地预测燃烧内壁面压力的变化趋势,克服了燃料射流非一维因素对一维计算方法带来的不利影响。
A one-dimensional analysis code coupled with the flamelets model was established to rapidly ob?tain the parameter distribution in a dual-mode scramjet combustor. A jet model was used to acquire the three-di?mensional distribution of the time averaged and fluctuating fuel mixture fraction,and time averaged equivalent scalar dissipation rate in the combustor. The distribution of combustion species and heat release were obtained through the flamelets model. The three dimensional information was added into the one-dimensional unsteady cal?culation model by integrating the cross section area of the flow channel. The one-dimensional parameter distribu?tion was obtained by solving the flow governing equations. Subsequently, several examples of verification show that this method overcomes the adverse effect of the three-dimensional fuel jet, and can well predict the wall pressure profiles in the combustor.

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一维光子晶体与光学薄膜的结构都具有分层性,为了得它们分析方法的异同,本文比较分析了一维光子晶体能带结构的传输矩阵法与计算光学薄膜分光特性的菲涅耳系数矩阵法,结果发现两种方法在计算一维光子晶体与光学薄膜的反射率与透射率上是等效的,用菲涅耳系数矩阵法计算一维光子晶体的反射率R与入射光波长的变化规律的实例也表明这一点,这两种方法在公式表述中的差别在于位相改变量δ的符号的正负,但不影响计算结果。
To distinguish the similarities and differences of the methods using to analyze one dimensional pho-tonic crystal(PC) and optical thin films(TF) which are provided with the similar stratified structure, the transfer ma-trix method(TMM) for analyzing the band gap of PC and the Fresnel coefficient matrix method(FCMM) for discuss-ing transmission and refection of TF were compared, and the equivalence of these two method for investigating the reflectivity and transmissivity of light of PC and TF was declared through the theory and a example of calculation of PC’s reflectance using FCMM, although existence of plus-minus of sign of variation for phase in the design formula for these two methods.

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应用传输矩阵法数值研究了含纳米磁流体一维Fibonacci准周期结构局域模的磁控可调特性.首先构建一维Fibonacci准周期结构磁流体光子晶体的物理模型,然后应用传输矩阵法,数值计算含纳米磁流体一维Fibonacci准周期结构的透射谱,最后讨论局域模的磁控可调特性.结果表明:局域模波长随磁流体折射率的增大向长波方向移动;随着含纳米磁流体一维Fibonacci准周期结构的代数的增加,其局域模的个数也随着增加,且局域模的品质因子也增大.
The magnetic control adjustable characteristics of one-dimensional Fibonacci quasiperiodic structure containing nanopar-ticle magnetic fluid localized modes is studied by using the transfer matrix method. First,building the physical model of one-dimension-al Fibonacci quasiperiodic structure containing nanoparticle magnetic fluid photonic crystal. Then,the transmission spectrum of one-di-mensional Fibonacci quasiperiodic structure containing nanoparticle magnetic fluid is calculated by transfer matrix method. Finally,dis-cussing the localized modes of magnetic control adjustable features. The results show that the wavelength of the local mode shift to the long-wave direction with the refractive index of magnetic fluid increases. When the generation of one-dimensional Fibonacci quasiperi-odic structure with nanoparticle magnetic fluid increased,the number of local mode increased as well,and the quality factor gets high-er.

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