非交换的

IDXP is an application layer of agreement use to invade measure entity exchange of datum.it can realize IDMEF news, structure text and exchange in binary scale of datum.also offered the safe characteristics faced and connected on the agreement such as the authentication,integrality and privacy of both sides.

摘 要：本文主要介绍在Beepcore C库工具包上开发一个IDXP协议的简易框架，IDXP是一个用于入侵检测实体之间交换数据的应用层协议，能够实现IDMEF消息、非结构文本和二进制数据之间的交换，并提供面向连接协议之上的双方认证、完整性和保密性等安全特征。

They include the fundamental concepts of jet bundle geometry needed in describing time-dependent mechanical systems, decomposition of jet bundles into a direct sum according to the constraints, horizontal distributions on constraint mainifolds, the global formulation of D'Alembert-Lagrange's equations and Chaplygin's equations, and nonholonomic mechanics on a Riemann-Cartan manifold. Meanwhile, the geometric significance of Chetaev's conditions and $\rd$-$\delta$ commutation relation are discussed in depth.

本文主要综述非完整约束系统几何动力学的外附型和内禀型Lagrange理论，包括非定常力学系统所需要的射丛几何学的基本概念、射丛按约束的直和分解、约束流形上的水平分布、 D'Alembert-Lagrange方程与Chaplygin方程的整体描述、以及Riemann-Cartan流形上的非完整力学，文中对Chetaev条件和d-δ交换关系的几何意义作了深入讨论。

Using properties of zero-divisors, regular elements and subdirectly irreducible ring , we obtain some results on the commutativity of semi-prime ring and Jacobson semi-simple ring as follows 1 Let R be a semi-prime ring ,a∈R and 2a is not zero-divisor,If R satisfies one of the conditions in this paper , then R is commutative.

在某些特殊环的交换性方面取得了进一步的结果，并得到了一些新的结论，主要有一设R 为半质环，a∈R ，且2a 为非零因子，如果R 满足论文中八个条件之一，则可以证明环R 为交换环。

The technologies used to solve these problem is presented. The second part proposes a new access method of recycle links of internal speed-up space switching fabrics. It eliminate the main contrariety between network performance and complexity. Combined with dilated Banyan, two types of recycled Banyan network-expanded recycle dilated Banyan and recycle dilated Banyan network are developed.

第二部分提出一种循环线接入方式，使得反馈线数目不再成为交换网络的性能/复杂度的矛盾所在；并结合线群Banyan网形成RDBN交换结构，对RDBN在均匀和非均匀业务模型下的性能进行了理论分析和计算机仿真，得出参数的选择尺寸，并提出使用窗口重整算法以保证信元序列完整性。

It is a natural generalization of the notion of implicative ideals in BCK algebras.

证明了BCI代数的一个非空子集是BCI关联理想当且仅当它既是BCI交换理想又是BCI正定关联理想，从而揭示了这三类理想之间的内在联系，并将BCK代数中知名论断：BCK代数的一个非空子集是关联理想当且仅当它既是交换理想又是正定关联理想，推广到BCI代数上去。

The thesis pays attention to the features of two methods of data exchanging among management stations: EJB invoke fits to exchange bulk of data and the MOM fits to exchange minor but key data.

论文着重讨论和比较了构架中交换数据的两种方式的特点：EJB调用方式适合交换数据量较大的非实时数据，消息通信方式适合交换数据量相对较少的实时数据。

The design includes many new technologies in data exchange and data security, they are: Converting non-XML data to XML in order to apply the XML security technology to more data types; Using the technology of XKMS and PKI to manage the public key in order to overcome the shortage of complexity and difficulty in using PKI and improve the efficiency of the public key management; Using Diffe-Hellman algorithm combining with the public key technology to exchange secret key in order to furthest increase the security of the key; Using the technology of XML digital signature algorithm to ensure the integrity, message authentication and signer authentication of the data; Using the technology of XML encryption to ensure confidentiality of the data; Defining delegable access rules on the structure and content of the XML documents to provide fine-grained access control. According to the XML security framework, a XML security library is designed and implemented.

在对XML及其安全技术主要包括XML加密技术、XML数字签名、公钥管理、密钥产生和交换进行研究的基础上，结合传统密码技术和XML安全技术提出了一种基于XML的数据安全模型，模型中包含了目前网络数据交换和安全领域的一系列最新技术，主要有：将非XML格式数据转换为XML格式数据的方法，以保证现有的大部分网络数据能够应用XML安全技术；使用XML公钥管理技术结合PKI技术管理公钥，以克服PKI技术实施和部署复杂、难度大等问题，提高公钥管理的效率；使用Diffie-Hellman算法结合公钥技术交换密钥，以最大限度保证密钥的安全；使用XML数字签名技术保证数据的完整性、不可否认性和发送方身份认证；使用XML加密技术保证数据的机密性；根据XML文档的内容和结构定义授权访问规则进行良好的访问控制。

The product is in the pore structure on the graft copolymer of styrene divinyl benzene [-N amines (CH 3) 2 The ion exchange resin], the less alkaline, in the acidic, neutral and effective exchange of inorganic acid medium. and the larger size can be adsorbed molecules in aqueous solution and the use of anion.

本产品是在大孔结构的苯乙烯二乙烯苯共聚体上接枝叔胺基[-N（CH3）2]的离子交换树脂，其碱性较弱，能在酸性、近中性介质中有效地交换无机酸，并能吸附分子尺寸较大的阴离子以及在非水溶液中使用。

The application results from fluorination showed microwave heating could accelerate chemical reactions markedly. The reaction time could be shortened 50% at least than that of conventional heating. The relationship between fluorinating agents\' structure and their activity was studied systematically. In addition, an anhydrous KF with higher activity was prepared by using expansion effect of microwave heating. As we known, solvents were very important to reaction. The comprehensive study showed some less polar aromatic solvents could be used as dipolar solvents. In addition, they had better effect than dipolar solvents in some occasions, such as fluorination of chlorobenzaldehydes and chlorinated diphenyl ketones etc. The primary applications of ionic liquids were also studied which indicated reactions with ionic liquids as solvents were more efficient and simple.

研究表明，微波是一种节能高效的加热方式，在微波作用下的卤素交换氟化反应具有反应速度快、转化率高、选择性好的优点，其反应时间可较常规加热缩短50%以上；同时也系统地研究了氟化剂种类及制备方式对其反应活性的影响，并利用微波加热的膨化作用制备出了一种活性较高的KF，其活性与喷雾干燥KF相差不大；溶剂对反应具有重要的作用，在此系统地研究了强极性非质子溶剂和中等极性非质子溶剂的应用情况，发现一些中等极性的非质子溶剂如硝基芳烃和氯代芳烃类溶剂在氯代苯甲醛类化合物的氟化反应中具有比强极性非质子溶剂更好的使用效果。

Compared to the existing the algorithm that can only transpose adjacent symbols before the position of being computed, improving the algorithm by transposing isolated symbols before the position of being computed as well as at after the position of being computed, can gain better edit distance.

与仅对计算点之前相邻位置字符间的交换操作相比，通过对计算点前后非相邻位置字符间的交换操作改进该算法，能够得到更理想化的编辑距离。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。