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     First,this paper shows that the previous batch verification protocols are not secure. Next,a novel batch verification protocol based on the polynomial RSA public key cryptosystem is presented.
     该文首先指出了以前各种批验证协议存在安全漏洞的原因,然后基于多项式形式的RSA公钥体制,提出了一种全新的批验证协议,其设计思路不同于以往任何一种批验证协议.
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     After the first batch,the bacteria can be reused and the yield is elevated by 40% compared with that in the previous batch.
     发酵后的菌体可重复诱导培养,ectoine合成量比第1次高出40%。
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     Batch.
     Batch.
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     p-batch, b =∞;
     p-batch,b=∞;
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     On the basis of previous studies, J.
     1 947年 ,J.
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     quit from the previous industrial;
     国有矿业企业退出原有产业;
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     An energy integration method is developed for batch processes after analyzing the characteristics of previous system integration.
     提出了一种用于间歇过程设计且改进的时间温度级联新方法 ,用于间歇过程的热集成及用能诊断 .
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  previous batch
The results are compared with previous batch tests and the potential mechanisms of removal are discussed.
      
The remaining two entries are used for keeping the vertex information of a previous batch.
      
The last two vertices of the previous batch must be saved for the next batch.
      
The MSW is fed batchwise in the digester after inoculating it with the slurry of the previous batch.
      
This concentration was calculated based on previous batch capacity studies.
      
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This paper deals with a new process for making Oxalic acid from corn starch in detail. Raw starch,which is ca 85 wt%pure,is hydrolyzed by converting it to a slurry in approximately an equal amout of ca 3wt%soln.of oxalic acid and 57% of H_2SO_4 in strong mother Liguor,which is recovered from previous batches,at 50℃ for 1~1.5h Subsequently,the hydrohyzed starch Solution is oxidised with an HNO_3/above mother Liqour(67% of HNO_3/raw starch=3:1,in v/w)at 60~65℃ for ca 4h in the presence of0.1% ammonium vanadate,1.25%...

This paper deals with a new process for making Oxalic acid from corn starch in detail. Raw starch,which is ca 85 wt%pure,is hydrolyzed by converting it to a slurry in approximately an equal amout of ca 3wt%soln.of oxalic acid and 57% of H_2SO_4 in strong mother Liguor,which is recovered from previous batches,at 50℃ for 1~1.5h Subsequently,the hydrohyzed starch Solution is oxidised with an HNO_3/above mother Liqour(67% of HNO_3/raw starch=3:1,in v/w)at 60~65℃ for ca 4h in the presence of0.1% ammonium vanadate,1.25% of MnSO_4 and 1.25% of FeSO_4 (in the weight of raw starch). The process has given a converting yield of 100~120% of oxalic acid dihydrate (from raw starch to oxalic acid dihydrate)with 99.5% purity(in H_2C_2O_4·2H_2O).

本文详细地研究了以玉米淀粉为原料,经酸性水解,硝酸氧化制造草酸的新方法。这该方法具有原料易得、条件温和、收率高、投资少、见效快、无三废污染等优点。这既为工业急需的草酸的生产提供了廉价易得的原料,也为玉米淀粉的综合利用开辟了新途径。

Iterative learning control (ILC) strategies, which can fully use previous batch control information and are attached to existing control systems to improve tracking performance through repetition , are proposed for SISO processes which have uncertainties in modeling and time delays. The dynamics of the process are represented by transfer function plus pure time delay. Simulation showed that the control performance has been apparently improved by applying for ILC.

 反复学习控制(ILC)策略充分利用以前的批过程信息反复改进追踪性能的控制策略,ILC应用于建模和时间滞后存在不确定性的单输入单输出过程,过程的动态特性由带纯时滞的传递函数描述.仿真结果表明:ILC能够显著提高控制性能.

A kind of problem of simultaneously optimizing batch splitting and scheduling for parallel production lines was discussed. Firstly, a formula was derived to determine completion time of a batch, which was produced continuously on production line. Then a lower bound was given to the starting time of a batch considering production time of which overlapped that of the immediately previous batch. And a sufficient condition to secure an available buffer during a continuous batch delivery was proved. Based...

A kind of problem of simultaneously optimizing batch splitting and scheduling for parallel production lines was discussed. Firstly, a formula was derived to determine completion time of a batch, which was produced continuously on production line. Then a lower bound was given to the starting time of a batch considering production time of which overlapped that of the immediately previous batch. And a sufficient condition to secure an available buffer during a continuous batch delivery was proved. Based on it, an algorithm was proposed to obtain the batch starting time. Complexity of algorithm was not related to the batch size. Finally, with the batch delivery model and proposed batch splitting heuristic algorithm, a genetic evolution based heuristic method was constructed to solve the problem. Numerical experiments show that this method can effectively balance loads of the production lines with a batch splitting.

研究了一类并行生产线上生产调度和批量分割的同时优化问题。给出了产品在生产线上连续加工时产品批量的完工时间计算公式,并证明了该公式的正确性。考虑相邻批次在生产线上加工会产生重叠,给出了产品批量开工时间的一个下界。证明了批量连续发交时保证缓冲区总是可用的充分条件,并在此基础上提出了一个求解批量开工时间的迭代算法,该算法计算复杂度与批量大小无关。最后通过建立的批次发交模型和提出的批量分割启发算法,构造了一种基于遗传进化的启发式方法以求解该类问题。计算实验表明,该方法通过批量分割可以有效地平衡生产线上的负荷。

 
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