不能获得的

We improve the protocol for signing contract based on the research result of secure multiparty computation. In this protocol, the parties obliviously transfer the signed bit and the committed bit; the other parties can prove the validity of this bit based on the confirming sub-protocol, but he can't gain more information about the whole signature by accumulating the more signed bit or the committed bit. After the parties exchange the whole signed information, they declare the commitment about the signature respectively, and gain the whole signature of the other party. At this moment, the party doesn't care about the advance quit of the other party, because he has gained the whole signed information.

在协议执行过程中，参与者将合同的签名位以及他对签名位的承诺不经意传输给对方，对方可以利用验证子协议证明该位的有效性，但是他却不能通过位交换次数的增加获取更多的完整签名的信息；在完成签名位的交换之后，参与者分别公开承诺，并得到对方对合同的完整签名；在公开承诺时，协议参与者已经获得全部的签名内容，要么是签名位，要么是对方对该位的承诺，因此参与者并不需要担心对方提前终止协议，同时本文也利用多方安全计算的结论证明了该协议满足终止公平性。

If two parties want to sign a contract C over a communication network, they must "simultaneously" exchange their commitments to C Since simultaneous exchange is usually impossible in practice, protocols are needed to approximate simultaneity by exchange partial commitments in a piece by piece manner The party of secondly sending commitments may have a slight advantage; a "fair" protocol must keep this advantage within acceptable limits The protocol for signing a contract is improved based on the research result of secure multiparty computation In this protocol, the parties obliviously transfer the signed bit and the committed bit; the other parties can prove the validity of this bit based on the confirming sub protocol, but he can't gain more information about the whole signature by accumulating the signed bit or the committed bit After the parties exchange the whole signed information, they declare the commitment about the signature respectively, and gain the whole signature of the other party At this moment, the party doesn't care about the advance quit of the other party, because he has gained the whole signed information Finally, it is proved that this protocol is quit fairness

作者中文名：曲亚东；侯紫峰；韦卫摘要：在网络环境中解决合同签订问题需要保证信息交换的同时性，以前提出的协议都会给第2个发送者部分计算特权，利用不经意传输协议则可以解决这个问题。在协议执行过程中，参与者将合同的签名位以及他对签名位的承诺不经意传输给对方，对方可以利用验证子协议证明该位的有效性，但是他却不能通过位交换次数的增加获取更多的完整签名的信息；在完成签名位的交换之后，参与者分别宣布承诺，并得到对方对合同的完整签名；在宣布承诺时，协议参与者已经获得全部的签名内容，要么是签名位，要么是对方对该位的承诺，因此参与者并不需要担心对方提前终止协议。在文章的最后利用多方安全计算的结论证明了该协议满足终止公平性。

Followed by planning to achieve the targeted innovation, the project is a traditional one staircase two multi-storey residential, subject to lots of space and planning constraints, to build high-rise buildings can not use an ordinary point of view is a way of thinking behind the development of high-rise buildings the trend of falling behind the property, after the planning will be positioned as a health and safety of their property, and gain market recognition, the realization of the "what if" goals.

其次是规划，以实现有针对性的创新，该项目是一个传统的一梯两多层住宅，但大量的空间和规划的限制，建立高层建筑不能使用普通的观点是一种思想背后的发展，高层建筑的趋势，落后的财产后，规划将定位为一种健康和安全，他们的财产，并获得市场认可，实现的" what if "的目标。

In order to realize this we should cling to Lao Zi's thought Taw models itself after Nature, that is, to behave according to objective laws. On the other hand it is human nature to pursue free creation. As the cognition and practice of the inexorable laws, man's freedom also lies in the transcendence of reality.

要实现这一目的，首先要发扬老子的"道法自然"的思想，人的思想和行为要遵循道、理办事，而人的本质在于追求自由创造，自由是对必然规律的认识与实践，同时一个人的自由的获得，又在于对现实生活的超越，没有超越就不能实现精神的自由，成为自由自在的人。

Using the DG index to measure the diversity of soil invertebrate assemblages was more reasonable than Shannon-Wiener Diversity Index in this case because the Acarina predominated in the samples which covered up the information of other soil invertebrate taxa, while the DG index is proposed on base of the hypothesis that every species has equal independence and importance in the community and could be compared with inter-community.

在本研究中，应用密度类群指数分析土壤无脊椎动物多样性的结果比应用Shannon-Wiener多样性指数的结果更为理想，这是因为土壤无脊椎动物由于组成结构复杂，不同类群的个体数量往往存在着巨大的差异，例如蜱螨目的较大数量常掩盖了其它类群的重要信息，多样性指数不能体现这一情况，而密度类群指数是基于各物种在群落中都有同等独立性，宜在不同群落间进行同种类比较的假设，对于复杂的土壤节肢动物群落多样性的测定可获得比较贴切的结果。

Because of this property, water is preferentially adsorbed by these surfaces, and large organic compounds cannot compete with strongly held water for adsorption sites on the clay surfaces. Thus, Na-clays are ine_ective sorbents for small organic molecules. However, it is possible to modify the surface properties of clays greatly by neutralizing the anionic framework of layer silicates by using positively charged organic species such as alkylammonim ions. In the modi_ed form (HDTMA-bentonite), the clay surface may become organophilic and interact strongly with organic compounds. Textile dyes represent a relatively large group of organic chemicals. In an HDTMA-bentonite-dye system it is possible that adsorption may be enhanced by the hydrophobic interaction between the adsorbed dye molecule and HDTMA-bentonite.

O组给予亲水的性质到矿物表面，因为这水是吸附在这些表面，和大的有机化合物不能比有坚强的为了吸附位置在泥土表面，因而，Na—泥土是ine_ective吸附剂为了小的分子，希，它是可能的到更改的表面属性，泥土非常在抵销anionic层硅酸盐在用的结构 Positively负荷的物种例如alkylammonim离子，在mod i_ed形状，泥土表面可能变成organophilic和互相作用坚强地有机化合物，织物染料表现相关的大的组化学的，在HDTMA—斑脱土—染料系统它是可能的那吸附可能是提高在交互作用在中间吸附染料分子和HDTMA—斑脱土，interlamellarHDTMA的间隔—斑脱土是获得在substracting泥土层从的厚度实验上坚决的基础的间隔（d001）。

A new method is described for determining the microwave dielectric properties of solid materials,for example agricultural products,mineral,of known densities from the dielectric properties of pulverized samples measured by employing the short circuited waveguide principle at a few different bulk densities.

本文介绍一个测定不能进行机械加工的&坚实材料&的微波介电特性的新方法。将这类材料研碎，成为&空气－粒子&混合物。应用短路波导方法，在几个不同的混合物&松密度&上测量其介电特性。当已知待测材料的&坚实密度&时，利用这些测量的特性与混合物&松密度&的线性函数关系进行&外推&，从而获得&坚实密度&下的农产品的微波介电特

The establishment of the collective class of digital piano in universities provides a chance for non-major music universities students to learn digital piano playing. Through this art practice, students could percept the aesthetics in music and improve their appreciation abilities for piano music; master the preliminary skills of playing piano and other skills like music reading, solfeggio, sight-reading and reciting; learn to play their enjoyed music which is not so difficult, and accompany at the piano for the singer. So that a comprehensive purpose will be achieved including self-amusement, the temperament in art, the mental adjustment, the rich spiritual life, the aesthetic pleasure, improved life quality and the guarantee of both mental and physical health.

在普通高等学校开设数码钢琴集体课，是为了让非音乐专业的大学生们通过学习弹奏数码钢琴这一艺术实践，来感受音乐的美，从而提高对于钢琴音乐的鉴赏能力；使得大学生们掌握钢琴演奏的初步技能，连带着掌握识谱、视唱、视奏、背奏的技能；学会弹奏自己所喜欢的不太难的钢琴曲，并且能为同伴的歌唱进行简易的伴奏，从而达到自娱自乐、陶冶性情、培养高雅的艺术素质、调剂脑力、丰富精神生活、获得审美愉悦、提高生活质量、保障身心健康的综合目的。

The contributions ofΨp from the pion and the kaon meson, the contribution ofΨB from B meson are not very small, and can not be safely neglected for giving more resonable results of form factors.The B meson wavefunction is a major source of uncertainty in the study of B meson decays. The B→πand B→K transition form factors provide a good platform to determine the possible regions for the two typical phenomenological parametersΛandδ.

但π、K介子波函数中的Ψp和B介子波函数中的ΨB对形状因子的贡献比较大，为了获得更加合理的形状因子的结果，一般不能忽略π、K介子波函数中的Ψp和B介子波函数中的ΨB项的贡献。B介子波函数是B介子衰变中不确定性的一个主要的来源。B→π和B→K跃迁形状因子为确定两个典型的唯象参数Λ和δ提供了一个很好的平台。

It brings up the question, What is the source of Continuous Competitive Advantage in new situation, and how to construct Continuous Competitive AdvantageCase analysis part adopts the analysis method, which combines the determination of nature and quantity. Firstly, it analyses economic character, competition situation, future and attraction of mobile communication industry in Huazhou at present. Secondly, it analyses the importance of resource, competition ability and customer orientation with SWOT Method and Value Chain Method. Thirdly, with Continuous Competitive Advantage Theory and Creative Destruction Theory, it illustrates that defense cannot protect the original competitive advantage in the severity competition situation, and that the only source for Continuous Competitive Advantage is continuous creation and method of pursuing a scries of temporary dynamic advantage. This is the strategy choice of AAA. Finally, with Leak Analysis Method, Core Competence Analysis and thoughts of Dynamic Strategic Management, it educes the strategic implementation scheme and brings forward the strategic plan.

首先，分析了当时华州移动通信行业的经济特性、竞争态势、前景及吸引力；接着，运用SWOT、价值链等分析法分析了AAA的资源、竞争能力及客户导向的重要性；然后，运用持续竞争优势和创造性破坏理论，阐明在激烈竞争的新形势下，防御已不能保护原有的竞争优势，只有通过不断地创新，追求获得一系列暂时的动态优势的方法，才是构筑持续竞争优势的源泉，从而形成AAA的战略选择；最后，运用漏洞分析法和核心竞争力分析等，结合动态战略管理的理念，导出AAA的战略实施方案，提出了战略计划。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。