次数

The life table analysis in the laboratory showed that there were no significant differences in survival rate, nympha duration, and fecundity between laboratory populations of aphids fed on Bt and non-Bt cotton.

对Bt棉在长江中游棉区对各种主要靶标及非靶标害虫影响的系统评价表明，在长江中游棉区种植Bt棉，将有助于控制该地区的棉铃虫和红铃虫的危害，减少棉田农药的使用次数，控制棉蚜的暴发，使棉田生态系统朝良性的方向发展。

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。

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 cant 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 doesnt 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

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1 引言两个参与者A和B想要通过网络协商签订合同C 为了保证公平性，参与者必须同时交换自己对合同的签名，然而在实际的网络环境中，想要完全同时地交换对合同的签名是不可能的，他们必须将签名分成若干块依次地执行，以保证大致的同时性但是这种方法依然存在着问题

The character of LEO-LEO satellite occultation events is well discussed in this paper. The impact of satellite orbit parameters on the number and distribution of occultation events are discussed based on simulation.

文章对LEO-LEO卫星掩星事件的特性进行了深入讨论，通过仿真计算定量讨论了轨道参数对掩星事件次数及分布的影响。

Automobile engine;; Electronic system unit;; Single clip computer;; Off-board Diagnostics;; Electronic control system

论文导师柏逢明，论文学位硕士，论文专业电子与通信工程论文单位长春理工大学，点击次数 11，论文页数 55页File Size3058K

This includes the nature and frequency of the advances and the conditions under which the offender made the m.

这包括性行为的本质、性示意发生的次数以及侵犯者是在何种情况下所做的行为。

In order to find a method for determing transportation batch and tank capacity of short-small product pipeline,the Anqing-Hefei product pipeline is taken as an example,which has such characteristics as a short route,a small diameter,no offtake stations,no new tank and little contaminated product loss.

为了研究短小成品油管道输送批次和罐容的确定方法，以安庆-合肥成品油管道为例，根据该工程线路短、管径小、不考虑分输、不需要新建储罐、混油量少等特点，经过综合比较确定管道输送的最大批次数，再综合分析首末站的实际情况，以充分利用首末站现有储罐、方便运行管理、减少混油损失为原则，来确定合适的批次和首末站的罐容。

Reducing the quality fluctuation of PVC resin produced by calcium carbide method among each production batch ;2. In order to find a method for determing transportation batch and tank capacity of short-small product pipeline,the Anqing-Hefei product pipeline is taken as an example,which has such characteristics as a short route,a small diameter,no offtake stations,no new tank and little contaminated product loss.

为了研究短小成品油管道输送批次和罐容的确定方法，以安庆-合肥成品油管道为例，根据该工程线路短、管径小、不考虑分输、不需要新建储罐、混油量少等特点，经过综合比较确定管道输送的最大批次数，再综合分析首末站的实际情况，以充分利用首末站现有储罐、方便运行管理、减少混油损失为原则，来确定合适的批次和首末站的罐容。

So, the optimum transportation circle should be decided from the two aspects of the fee cost by construction and run of oilcan areas and the depreciation loss of oil mixture.

因而，最优循环次数的确定应从建造、经营油罐区的费用和混油的贬值损失两方面综合考虑。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。