全局分析

Spectral methods and the classical Crank-Nicolson scheme are applied to deduce the full discrete system for the continuous model, then the variational adjoint assimilation approach is used to derive the gradient and the corresponding adjoint system.

从这个全离散问题出发，结合全局或局部已知的观测数据，分别构造梯度下降算法求解相应的最优化问题。我们分析了采用不同方法计算梯度所需的代价，另外，还给出一种选择最优迭代步长的算法。

The overall situation that so DCCI ADmeasure can stand in sale comes consideration, service, because we offerred integrated data to study a service,just is, at the same time the collaboration with the science and technology that send ripple assured from the technology stereo monitor, track continuously, deepness analysis just becomes a possibility truly.

所以DCCI ADmeasure能够站在营销的全局来考虑、服务，恰恰是因为我们提供了整合的数据研究服务，同时和传漾科技的合作从技术上保证了立体监测、持续追踪、深度分析才真正成为可能。

Typical remote imaging distortions are analyzed firstly. For sea area optical images, a Convex Hull of Extended Centroids target global invariant feature extraction method is proposed based on affine geometry theory.

论文在分析成像畸变误差的基础上，针对海域光学遥感图像数据，提出了基于仿射几何理论的扩展质心-凸包目标全局不变特征提取方法。

Third chapter illustrate the design scheme for justification development system, amalgamation steer the argumentum;And code design in the detailed design sum the database design of whole system;Recommended the detailed design information of sum of the shuttering cake structure of the aetioporphyrin system;Analyzed the library to manage the system's appliance demand, according to the database design theory proptosis of one-step and one-step earth joint system demand manual, local ER general view, overall situation ER general view, system relation modal, leaven the modal;Arrangement in parallel proptosis the valve key source of the said system code in the procedure the amalgamation commit the interpretation, justification.

第三章说明开发系统的设计方案，并进行论证；以及详细设计中的代码设计和整个系统的数据库设计；介绍了本系统的模块结构和详细的设计信息；分析了图书馆管理系统的应用需求，按照数据库设计理论一步一步地给出了系统需求说明书、局部ER图、全局ER图、系统关系模式，子模式；并列出了该系统的关键源程序中的代码并做解释、说明。

The vibro-impact systems are familiar with the non-smooth dynamic systems.The dynamics research of the vibro-impact systems not only is significant in theory but also has practical values in engineering.Firstly,using the Poincaré map method,we get an existent criterion of single impact period-n motion in a two-degree-of-freedom vibro-impact system with damper.It is shown that our conclusions are valid through the numerical simulations.Moreover,the satiability of periodic motions is studied and the correspon...

基于Poincaré映射的方法，通过解析的方法导出了一类具有阻尼的两自由度碰撞振动系统的单碰周期n次谐运动存在性判据，经过数值模拟验证了理论分析的正确性，并给出了分析其稳定性的判别公式，通过数值模拟，讨论系统的局部分岔与全局分岔，同时比较了系统参数变化对其周期运动的影响，发现在强阻尼、弱激励、小质量比、较大恢复系数下系统将会出现较多的有规律的周期碰撞。

Secondly, method of Taylor series is used to approximate the slow manifold and the O approximation of the slow manifold is given; slow dynamics such as saddle node bifurcation which has been proven to be the same as that for the full system is analyzed; at the same time, fast dynamics including bifurcation conditions and domain of attractor of the stable equilibrium are also analyzed; the attracting region which consists of the stable manifold of the unstable equilibrium and stable equilibrium is given; we found that when the inner flux decay increases, the domain of attractor is enlarged.

首先，给出了电力系统SMIB模型的时间尺度分解，得到标准的奇异摄动模型；其次，利用幂级数方法，给出了慢流形的O近似M〓，分析了在慢流形M〓上的慢动态，得到了慢子系统的鞍结分支值，并证明此分支值与原系统的鞍结分支值相同；分析了快子系统的平衡点和全局分支的存在条件，给出由不稳定平衡点的稳定流形与稳定平衡点形成的吸引域；并研究内部电压对稳定域的影响，发现稳定域随内部电压增加而扩大；最后给出整个系统的稳定平衡点的近似吸引域。

The purpose of chapter 4 is to study a predator-prey model with sublinear functional response function and sublinear density control function. Some results dealing with stability of equilibrium, nonexistence , existence as well as uniqueness of the limit cycle around the positive equilibrium of the model are obtained.

第4章分析了一类食饵的相对增长率和功能反应函数均为次线性函数的食饵-捕食者模型，通过分析，得到了该系统的正平衡点全局稳定和存在惟一极限环的充分条件。

through the existing analysis of network security and intrusion detection technology, this paper puts forward a cooperative intrusion detection method. this new method collects information distributedly, processes in multilateral cooperation, and constructs the large-network ids. then, it collects the information from dialing users to detect whether there are vulnerabilities and virus in individual or not. by means of such functions, this method only permits the users with reliable network repairing system or with the updated latest virus library to access to the campus network.

该文通过对现有校园网络安全及入侵检测技术的分析，提出一种基于协议分析的分布式入侵检测方法，采用分布收集信息，分布处理多方协作的方式，将基于主机的ids和基于网络的ids结合使用，构筑面向大型网络的ids；然后通过全局安全网络协作，收集拨号用户的信息，检查个体计算机是否存在漏洞、病毒，如果发现有就阻止其接入网络，强制其用到可信的网络修复系统或更新最新的病毒库后才可以正常接入校园网。

At last, the research test the logistic regression model with sample dada. The results are as the following:(1)Based on the time series dada, the financial early-warning model contains more crucial information reflecting the dada characters, so it can avoid the obvious logic problem in the other analysis such as single section dada and multi-section dada analysis. The test result indicate that the new model have a more accuracy than others.(2) the research adopt the global principal component analysis to settle the problem of multiple collinearity, so the model would be more normative and precise.(3)the early-warning model uses the backward method to regress, so it gets a terser model of only five variables, but it still has a precise forecasting ability.

通过本文研究说明：（1）建立以时序数据为基础的财务危机预警模型，提高了样本中重要财务趋势特征的信息含量，从而克服了国内外单截面及多重截面分析中普遍存在的明显逻辑问题，检验结果表明，利用时序数据建立的logistic财务危机判别模型较截面数据基础模型的判别准确率要高；（2）采用全局主成份分析方法解决了模型中因子间的多重共线性问题，这一处理使logistic回归方法应用的规范度和严谨度得到明显改善；（3）我们采用向后逐步回归的办法进行回归，使模型大大得到了简化，其中只包含五个自变量，但是它的整体预测准确性却仍然比较高，使模型更具有实用性。

Based on the analysis of the problems which the Inventory Management of foreign and abroad faced, and considered the theory of Supply Chain, we can analysis the threatens and the reasons bringing by the information requiring of mutating and expanding phenomena -"Bull-whip Effect" in the Inventory Management of chain environment, and can further bring about the policy to solve it. We studied the three new policies for Supply Chain Inventory Management, and VMI realizes the cooperative management between the superior and subordinate knot of supply chain in the enterprise; Multi-grade Management realizes the optimization of the supply chain inventory management from full view; but JMI is the inventory management form of risk sharing, its stress the jointed within the supply and demand at the same time and constitute the inventory plan, to promote every managers (vender, manufacturers, distributors) of the SCM are thinking the harmonious with them, to keeping the accordant anticipate for the inventory manager"s inquest between two conjoint enterprises.In view of VMI stratagem"s fine pragmatism and operation, on the base of understanding VMI, combine the conceivable four assorted relationship in the real supply chain between the conjoint enterprises.

论文在分析国内、国外库存管理所面临的问题的基础上，结合供应链一体化理论，对供应链环境下库存管理中出现的需求信息变异放大现象--即&长鞭效应&的危害及其产生原因进行了分析，在此基础上进一步提出了解决&长鞭效应&的措施；重点研究了实现供应链库存管理的三种新策略，其中，供应商管理库存实现了供应链上级与下级节点企业之间的协作管理；多级库存管理是从全局的角度实现了供应链库存管理的优化；联合库存管理是一种风险分担的库存管理模式，它强调供需双方的同时参与，共同制定库存计划，使供应链中的每个库存管理者(供应商、制造商、分销商)都从相互之间的协调性考虑，使得供应链相邻两节点企业之间的库存管理者对需求的预期保持一致基于VMI策略的良好的实用性和可操作性，在理解VMI概念的基础上，结合实际供应链中节点企业间可能出现的四种组合关系，相应地提出四种概念性架构，用以表达：VMI系统的内部结构；VMI系统与节点企业内部管理系统的接口关系及两类系统的关系；VMI系统与节点企业间的信息共享与转换，如库存信息在供需之间的传递、加工等具体过程。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。