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In this paper, the system model for multi-user asynchronous DS/CDMA under multi-path fading channel is presented firstly. Then the Maximum Likelihood Sequential Estimation algorithm under time-invariant channel is described in a new form which is different from Verdus work.

本文首先给出了多径异步多用户DS/CDMA系统的一种数学模型，得出了恒参信道下最大似然检测算法的一种新的表示形式。

In this paper,the behavioral,physiological, ecological adaption mechanism of H.armigera and H.assulta to their common host plant tobacco were studied comparatively,and the main results were summarized as follows:Electroantennogram response of adult to tobacco volatiles:(1) H.armigera and H.assulta elicited similar EAG responses to the tested 20 tobacco volatiles;both of them elicited significantly more sensitive to green leaf volatiles,aliphatic and aromatic compounds, than to monoterpene,sesquiterpene,heterocyclic compounds under lower concentration; while the similar EAG responses under higher concentration were detected,but most of them were not significantly different with each other.

本文从行为、生理和生态适应三个方面，对棉铃虫和烟夜蛾与烟草间的互作进行了比较研究，主要结果如下：成虫对烟草挥发物的EAG反应：(1)两种夜蛾对测试的20种烟草挥发物均可产生EAG反应；低浓度下对绿叶气味、脂肪族、芳香族化合物的EAG反应显著高于单萜类、倍半萜类和杂环化合物；高浓度下的EAG反应也表现出相似的总体反应趋势，但多数反应值间的差异未达显著水平。

Experiments have been performed using ultra-short (30fs) ultra-intense laser pulse(up to 1018W/cm2) focused into under-dense plasmas(ne＜1020/cm3). A 2ω0 probe pulse was used for the shadowgraphy and the investigation on the propagation of laser under various condition was presented.

开展超短超强激光与次稠密等离子体相互作用实验，采用探针光对激光等离子体相互作用区域进行阴影成像，研究了不同激光功率与临界功率比值及不同激光脉冲长度与等离子体波波长比值下的激光在次稠密等离子体中的自聚焦传输。

Employing the Hopkinson torsion-tension combination bar system, the constitutive relations of soft aluminum under torsion-tension combined high strain—rate was obtained, The constitutive relations of Monel alloy under Dual—direction shearing high strain—rate was also investigated after special modification of above apparatus.

本文还利用分离式扭—拉复台霍布金森杆设备测试软铝在高应变率扭—拉复合载荷作用下的本构关系，并将该设备经特殊改装测试了蒙纳尔合金在高应变率双向剪切下的力学特性，目前也尚未见这方面的公开资料。

Under the effect of motive force of sheet now, erosion amount increases with the slope gradient as power function; under the co-effect of spitshment and flow, erosion amount...

在薄层水流动力的作用下，侵蚀量随地表坡度增加呈幂函数增大；在击溅和水流共同作用下，侵蚀量与地表坡度呈二次抛物线型关系。

The similarities of structure and loading conditions of a cylindrical shell with a hole under inside pressure and that of its plate model(a plate with a hole under tension) are analyzed to improve the precision of its fatigue life prediction by modeling.

研究受内压开孔圆柱壳与其受拉伸开孔平板模型在结构和受载条件上的相似性。有限元分析表明，开孔圆柱壳与其相应的平板模型在开孔附近的等效应力分布非常相似。

I am sure I have gotten as much as eighty percent of my body under my helmet when caught under shellfire.

如果感觉自己就在炮弹爆炸之下，相信我能把身体的80%缩进钢盔。

In order to further support the export of domestically made cigarettes, and meanwhile continue strengthening the administration of taxation on exported cigarettes, the State Taxation Administration has, upon deliberation, decided to increase the outer-port customs (that is, the representative office in Shanghai Waigaoqiao Port) under Shanghai Customs and Haicang Representative Office under Amoy Customs as the ports for export of duty-free cigarettes, meanwhile, for the exported cigarettes, if the customs declaration form on the exported goods supplied to Shanghai Ocean Ship Chandler Company within the plan of duty-free exported cigarettes is affixed with a seal of "being inspected by Shanghai Customs", they are permitted to be exempted from duty and be written off after verification.

为进一步支持国产卷烟出口，同时继续加强出口卷烟的税收管理，经研究，总局决定增列上海海关所属外港海关（即上海外高桥港口办事处）、厦门海关所属海沧办事处为免税卷烟出口口岸；同时准予对在免税出口卷烟计划内供应给上海远洋船舶供应公司的出口货物报关单上加盖"上海海关"验讫章的出口卷烟，予以免税核销。

Spraying KCL solution every other day for 15 days start from late flowering, results showed that nitrate content in the leafs and stems were markedly reduced, Nitrogen redistributed to silique and rapeseed were efficiently promoted, nitrate reductase activity in the leaf were markedly increased. The differences of the same species which under different treatment are more serious, and the differences of the different species which under the same treatment are more significant.

结果表明，喷施氯化钾溶液能有效降低开花期和收获期油菜茎叶硝酸盐含量，与喷施硫酸钾溶液和清水相比达到了显著水平；有效促进了氮素向角果和籽粒分配，显著增强了油菜角果初期叶片硝酸还原酶的活性；同一品种不同处理之间的差异比较显著，品种之间处理后的差异也比较明显。

Under small-scale yield condition, the stress distribution outside the yield zone is similar to singular stress distribution without considering the plastic yield. So the elastic singular stress field can be used to narrate the elasto-plastic stree field approximately under small scale yield condition, but the stress intensity coefficient is larger that the elastic one, moreover, it increases as the hardening coefficient decreases.

在小规模屈服条件下，屈服区域外的弹性应力分布与不考虑塑性屈服的弹性奇异应力分布相似(即奇异次数与弹性奇异次数一致)，即可用弹性奇异应力场来近似地描述小规模屈服时的弹塑性界面端，但应力强度系数则比弹性时略大，且随硬化系数的减小而增大。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。