查询词典 differential cross-section

With the help of dynamic mechanical thermal analysis, differential thermal analysis, analysis of curing behaviors and swelling test, the change of structure during the vulcanization of ebonite was analyzed. It is found that the chemical cross-linking in the ebonite trended to descend with degree of vulcanization, while the modification effects of polar groupings on the carbon backbone gradually increased, which dominated its physical and mechanical properties.

通过考察硫化时间对于硬质橡胶结构与性能的影响，结合DMTA、DSC、硫化特性分析、溶胀分析等方法，分析了硬质橡胶的硫化过程中结构的变化，认为在硫化过程中，随着硫化的进行，硬质橡胶中的化学交联作用有下降趋势，极性基团对于碳骨架的改性作用逐渐增加，并对硬质橡胶的物理机械性能起主要决定作用。

Fumed-silica surfaces were modified with resorcinol and hexamethylenetetramine complex, and NR/M-silica nanocomposites were prepared in mixing and curing process. Structure and properties of NR/M-silica nanocomposites were investigated by mechanical testing ,cross-linking density determination, transmission electron microscopy, differential scanning calorimetry, fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The results showed that M-silica have obvious reinforcement effect on NR vulcanizate.

用间苯二酚与六亚甲基四胺络合物对气相法白炭黑进行表面改性，通过混炼和硫化制备了天然橡胶/改性气相法白炭黑（NR/M-silica）纳米复合材料，并通过力学性能测试、交联密度测定、透射电镜、差示扫描量热法、红外光谱和X射线光电子能谱等手段研究了纳米复合材料的结构和性能。

Based on a simple and applicable method for sensitivity analysis, the updating parameters were determined such as material, cross shape and size of the main loading rods in the rig derrick. The optimal updating function was established according to the residual differential value between testing modal parameter and theoretical modal parameter.

依据简单实用原理，利用灵敏度分析方法确定了井架结构主要承载杆件的材料、截面形状和几何尺寸为待修正参数；以试验模态参数和理论模态参数之间的残差最小值构建优化修正函数，利用一阶搜索优化算法对待修正参数进行了优化和状态评估。

The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

AWG光信号传输特性与相关参数的分析，为进一步优化设计AWG及提高其性能提供了理论依据，而优化设计计算数值方法解决了AWG优化设计计算的复杂问题，为进一步建立AWG的计算机设计系统提供了基础；AWG光信号处理的特性分析，提出了AWG应用的新领域，为光信号的傅立叶变换、串并传输、循环移位、矩阵变换、微分处理等提供了一条途径；波长传输矩阵变换关系的建立，不仅得到了确定多路AWG每路信号从输入端口到输出端口的准确输出位置的方法，而且在分析应用AWG实现复杂的光通信网络路由的连接、特别在设计分插复用器和交叉连接器等网络节点时有重要的作用，能有效而准确地确定波长的路由关系，为实现节点波长传输路由的监控和管理提供有效手段；基于AWG的OXC结构和波长路由的确定为实现OXC技术、特别是多路多波长的OXC和光网络的智能节点技术提供了有效的方法；控制平面的特征、路由器、流量工程、程序及改进的波长路由算法的研究实现了基于GMPLS的OXC光传送网络的控制平面，为建立自动交换光网路提供了一定的基础；时频分析可以更直观和更清晰地描述脉冲信号在单模光纤中传输色散和能量的变化，为色散积累和色散补偿提供有效的分析参数。

In fact, from Wahaha management systems and practice, we can see that the management strategy: First, to implement a win-win aggregators institutional, Wahaha in China's 31 provinces to strictly selected more than 1,000 dealers, formed covering nearly Every town in China a joint marketing system, and use margin approach to building confidence between the parties, this approach dramatically changed the Wahaha trade forms of organization, Wahaha's chairman and general manager Zong said that this organizational form of "aggregators body"; Second, the implementation of differential pricing system, Wahaha's existing sales network of the company itself, a special dealer, special two dealers, secondary dealers, three dealers, retail terminals, and strict price control system; 3, comprehensive incentives, Wahaha's rebate is not a single incentive sales rebate of such direct incentive, but rather to include a variety of promotions and other indirect incentives, including a comprehensive incentive measures; 5, strict accountability and developed a regional strict reward and punishment system, Wahaha and dealer signed a contract to the authorized dealers to strictly limit the sale of the area to prevent the dealer cross-regional sales in order to strictly protect the dealers around the interests; 6, and distributors to establish deep feelings, Wahaha and distributors Once the partnership working to develop a long-term strategic partner; 7, emphasis on marketing, team building, Wahaha throughout the country only more than 3000 sales staff Why so few sales staff can help the company to complete more than 32.5 billion yuan in annual sales, which Wahaha focus on team-building and marketing are inseparable.

其实，从娃哈哈的管理制度和实际操作中我们可以发现其管理策略：一、实行双赢的联销体制度，娃哈哈在全国31个省市严格选择了1000多家经销商，组成了几乎覆盖中国每一个乡镇的联合销售体系，并采用保证金的方式建立双方的信任，这种方式极大地改变了娃哈哈的交易组织形式，娃哈哈公司董事长兼总经理宗庆后称这种组织形式为"联销体"；二、实行级差价格体系，娃哈哈现在的销售网络构成是公司自身、特约一级经销商、特约二级经销商、二级经销商、三级经销商、零售终端，并实行严格的价格管理体系；三、全面的激励措施，娃哈哈的返利激励并不是单一的销量返利这样的直接激励，而是采取包括各种优惠活动等间接激励在内的全面激励措施；五、实行严格的区域责任制并制定了严明的奖罚制度，娃哈哈和经销商签订的合同中给特约经销商限定了严格的销售区域，防止经销商跨区域销售，以严格保护各地经销商的利益；六、与经销商建立深厚的感情，娃哈哈和经销商一旦确定合作关系就致力于发展成为长期的战略伙伴；七、重视营销队伍的建设，娃哈哈在全国各地只有3000多销售人员，为什么如此少的销售人员可以帮助公司完成超过325亿元的年销售额，这与娃哈哈注重营销队伍的建设和培养是分不开的。

Split-phase current differential protection has excellent capability of fault phase selection no matter whether the fault occurs on the same line or cross over lines.

分相电流差动保护具有优良的性能故障选相无论故障发生在同一行或交叉线。

On the basis of DDRT-PCR technique we found that:Total of 331 differential displayed cDNA bands from 1161 were displayed in the 4x4 diallel cross combinations with 30 pairs of primers, which shows the differences of gene expression between hybrids and their parental lines were very obvious in quantity and quality.

采用mRNA差异显示技术和荧光定量反转录PCR技术，从随机mRNA差异显示和候选功能基因mRNA表达定量分析两个方面，研究了32周龄杂种鸡及其亲本纯种的基因差异表达及其与繁殖性状杂种优势的关系，探讨了鸡繁殖性状杂种优势形成的因素及其分子遗传机理。

Elastic and inelastic differential and integral cross sections for low-energy vibrational excitation of H2 by electron impact are studied with exact exchange. The resulting coupled integrodifferential equations are solved using a combination of linear-algebraic and R-matrix-propagator techniques.

严格交换势用于研究低能电子与H2分子的弹性和非弹性散射截面，线性代数方法和R-矩阵传播子相结合求解基于振动密耦合方法的积分-微分耦合方程组，由此得到收敛的散射微分截面和积分截面。

Protection of vertical and cross direction is proposed. The principle and installation of differential protection and directional over-current protection which applied to ringlike type power network is presented.

船舶电力系统的各种型式的电网均要设置相应的保护装置，以便在电网发生各种故障时保护装置能选择性地动作将故障切除并

The author attaches great importance to the relative displacement and the cross deformable features between the structure of subways and the surrounding soils in the condition of equal load and differential equal load, soaked and unsoaked, different capacity of containing water.

着重探讨了均布荷载与差异荷载下、土层浸湿与非浸湿情况下，以及不同含水量条件下，地铁结构与周围土层之间相互滑移与交叉变形特征，地铁结构上方土体沉降特征和地铁结构自身的变形特征。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。