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The content fluid department of our country still is actually among a process that remains to mature, what we need to build the week transition of a few major is straight distribute a system, avoiding is a kind of memory model, because very much business is done,deserving to send more is through producing the business with agency, our business shop more is the action of memory, electronic business affairs can help us be built quickly with speed / the week transition that time is core distributes a system continuously, solve our inventory problem quickly.

我国的物流体系实际上还在一个有待成熟的过程当中,我们需要建立一些专业的周转型的直配体系,避免是一种存储型的,因为有很多企业做配送更多是通过和经销商发生生意,我们的商铺更多是存储的作用,电子商务可以帮助我们快速的建立以速度/时间为核心的周转型直配体系,快速解决我们的库存问题。

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。

The surface electromagnetic is expanded in a polynomial function via the Chebyshev approximation , then the electromagnetic distribution can be obtained at any frequency within the given frequency range , which is used to compute the scattered fields and the wideband radar cross section .

论文摘要:将切比雪夫逼近理论应用于目标宽带电磁散射特性分析中,通过求解给定频带的切比雪夫节点并用高阶有限元方法求得各节点处的目标表面场值,实现整个频带内任一频率点目标表面场值的快速预测,使得目标电磁散射特性得到快速分析。

Chinaberry witches'broom, Ziziphus jujube witches'broom, Mulberry dwarf disease, JWB and Paulownia witches' broom phytoplasmas were identified by comparative studies of PCR amplify of phytoplasmal 16SrDNA、23rDNA and ribosomal protein gene, heteroduplex mobility assay, RFLP of PCR-amplified products (16S rDNA), cloning and sequence analysis of 16SrDNA and rp gene. An efficient procedure for rapid identification and differentiation of phytoplasmas was established, which could identify and differentiate phytoplasma collected from field.

通过对桑萎缩病、枣疯病、酸枣丛枝病、泡桐丛枝病和苦楝丛枝病植原体16SrDNA、23SrDNA和核糖体蛋白基因的PCR扩增、异源双链迁移率分析、16SrDNA PCR产物的限制性片段多态性分析以及植原体16SrDNA和rp基因的克隆和序列分析等比较研究,建立了一种快速确定未知植原体种类和分类地位的分子鉴别与鉴定优化程序;此程序可对田间采集的各种植物植原体样品直接进行快速鉴定和鉴别。

A new and quick method for enzyme activity assay was developed in which the reduction of artificial electron acceptor potassium ferricyanide was measured by monitoring the color change of reaction mixture at 420 nm.

为了便于快速简便的测定IDA氧化酶的活力,还建立了一种以铁氰化钾作为人工电子受体,通过检测酶促反应在420nm吸光度的变化而快速定性定量测定酶活力的新方法。

This text to 1 kind from calculator automatically control and carry on the electronics dollar that the data collect a spare part a total quantity Fu to shine on the spot test system to carry on pulling a description, and pass application that system to the CMOS numerical electric circuit CC4069 carry on with total the amount of synchronous electricity parameter's on-line diagraph, and radiate a quickly collect of the countermarch fire data, study pull CMOS numerical electric circuit a total quantity Fu shine on on-line Fu to shine on to respond to characteristic and Fu to shine on behind fast time back a fire effect.

本文对一种由计算机自动控制并进行数据采集的电子元器件总剂量辐照现场测试系统进行拉描述,并通过应用该系统对CMOS数字电路CC4069进行与总剂量同步的电参数在线测量,以及辐射后退火数据的快速采集,研究拉CMOS数字电路总剂量辐照在线辐照响应特性和辐照后快速时间退火效应。

Its losing weight unique efficiency is high, can in-depth seepage subcutaneous fat organization, activate the fat enzyme activity comprehensively, urges the fatty cell activity, the combustion unnecessary fat, the fast decomposition unnecessary fatty acid, through in vivo microcycle, the fast decomposition leaves in vitro abreast in row, the control energy takes, after preventing thinly, bounces the regeneration and the excrescence stores up, achieves models the body us body curve.

其瘦身独特效率高,能深层渗透皮下脂肪组织,全面激活脂肪酶活性,促使脂肪细胞活动,燃烧多余脂肪,快速分解多余脂肪酸,通过体内微循环,快速分解并排出体外,控制能量摄入,阻止瘦后反弹再生和赘肉囤积,达到塑身美体曲线。

With the application of the sampling theorem and the Fast Fourier Transform, two groups of numerical forms of the algorithm equations suitable for two kinds of FFT subroutines are derived. Finally, the measurement algorithm is fully tested by the measurement and calculation carrier out for an MMW irradiator.

在解析算法的基础上,应用采样定理和快速傅里叶变换,推导了分别适用于两种快速傅里叶变换子程序的数值算法公式,通过对一种毫米波辐射器的实际测量和计算对测量算法进行了整体检验。

And then, this paper presents an algorithm of computing the left inverse or right inverse for these special rectangle matrices. In thenormal algorithms for solving these problems, we need O(m2n) multiplications ordivisions. The algorithms in this paper only need O + O(n2) multiplications ordivisions. The paper is built as follows.

常规的计算m×n阶不相容线性方程组的极小范数最小二乘解的算法所需计算量为O(m~2n),而本文根据特殊矩阵的特殊结构,通过两种不同的构造方式给出了两类不同的计算极小范数最小二乘解的快速算法,并给出了求特殊矩阵的左逆及右逆的快速算法,它们的计算量均为O+O(n~2)。

The humidity resistance and the sensitivity to chemical warfare agents simulants of the tuned films were also investigated.Self-assembled LBL polyaniline films were prepared from aniline monomers by in situ polymerization and the mechanism of film formation was discussed. It was proposed that the self-assembly of polyaniline occurred through the quick absorption of aniline monomer cations or aniline monomer cation radicals on the glass surfaces by electrostatic attractions to form homogeneous polymerization centers, then increased gradually by the way of upright to the glass supports for extensity, leading to the polyaniline chain growth. The polyaniline was doped under acidic condition to absorb anionic polyelectrolyte, such as sodium polystyrene sulfonate based on the electrostatic force, or to adsorb polymer based on hydrogen-bonding interactions, for example Polyvinyl Alcohol, and then recycled to fabricate_n or_n self-assembled multilayer films.

跟踪了原位聚合的具有纳米结构的聚苯胺多层自组装膜的成膜过程,提出了该自组装膜的成膜机理:聚合反应初始阶段的苯胺阳离子或苯胺阳离子自由基通过静电作用快速吸附到带负电荷的基片表面,形成均匀的聚合中心,然后以垂直于基片的方式进行链增长生成PANI;PANI在酸性条件下经现场掺杂后带正电荷,再通过静电作用吸附带负电荷的聚电解质如聚苯乙烯磺酸钠,或通过氢键作用吸附聚合物如聚乙烯醇,这样循环LBL-SA即得到_n或_n等原位聚合聚苯胺自组装膜。

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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。

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。

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