双

A semiconductor optical amplifier model is employed in which the self birefringence of SOA due to stress is taken into account. The integral action of the birefringence of the fiber and the PC is represented with a Jones matrix of linear retarder.

半导体光放大器采用由张应变引起的自身双折射理论模型，光纤的双折射效应和偏振控制器对光的偏振调节作用综合用一个线性双折射琼斯矩阵表示。

We show that Jordan multiplicative bijective maps on prime operator algebrasmust be additive. As its application, we show that every Jordan * multiplicative bijec-tive map on every factor C~* algebra is a C~* isomorphism or a conjugate C~* isomorphism,in the special case of B, it must be a *-isomorphism or a conjugate *-isomorphism.We also prove the additivity of Jordan multiplicative bijective maps on nest algebras.

证明了素算子代数上Jordan可乘双射的可加性，利用这一结论刻画了因子C~*代数上的Jordan*可乘双射，我们的结果表明这样的映射一定是C~*同构或共轭C~*同构；证明了套代数上的Jordan可乘双射的可加性。

Polyethylene glycol dimethacrylate, one of the fine chemical intermediates is the main ingredient of anaerobe. With the development of adhesives, the domestic production of polyethylene dimethacrylate has been challenged from many aspects, therefore, to improve the production technics and yields has been the key problem to resolve at present.

缩乙二醇双甲基丙烯酸酯——精细化学品中间体之一，作为胶粘剂中厌氧胶的主剂，在胶粘剂日益发展的今天，国内的缩乙二醇双甲基丙烯酸酯生产受到了很多方面的挑战，因此，改进生产工艺，提高产率是目前缩乙二醇双甲基丙烯酸酯生产首要解决的问题。

The bilinear form of BBM equation has known, so we can similiarly get the bilinear form of associated DGH equation, then we can get the bilinear form of DGH equation and 1-soliton by a approciate method.

BBM方程的双线性已知，通过恰当的设法可以类似得到关联DGH方程的双线性形式，即得到了DGH方程的双线性形式，并由此得到了DGH方程的1—孤子解。

New sub-models for the four-way valve and the boost pump have been created by combined models. The initial parameters for the calculating analysis were determined at a rough estimate. The model has also been tested, modified and improved.

所构建的双燃料喷油器的计算模型能够较好的模拟复杂的双燃料结构特点和工作过程；采用模块组合的方法构造了四通阀和增压泵等新组件；采用估算的方法，确定了计算分析的初步参数；并对双燃料喷油器的计算模型进行了验证、调试和改进。

Methods Arterial bypass with prosthesis - graft was carried out in 15 cases: ascending aorta- bilateral axillar arteries and unilateral ICA bypass in 6 cases, ascending aorta - bilateral axillar arteries bypass in 3 cases, ascending aorta - unilateral axillar arteries and unilateral ICA bypass in 5 cases, and in one case of complicated TA combined with abdominal aorta, ascending aorta- bilateral axillar arteries and unilateral ICA bypass were performed, followed by unilateral axilla - femeral bypass.

方法15例重症头臂型大动脉炎患者经胸行人工血管旁路术，升主动脉-双腋动脉、单颈内动脉架桥6例，升主动脉-双腋动脉架桥3例，升主动脉一单腋动脉、单ICA架桥5例，1例合并腹主动脉闭塞的复合型，一期行升主动脉-双腋动脉、单ICA架桥，二期行单侧腋股搭桥术。

The analysis result about vibration states that the double involute gear possesses the better dynamic characteristics than that of the common involute gear. The results of experiments betoken that such gear will have a very good prospect of use.

振动分析结果表明：双渐开线齿轮振动速度的有效值和振动加速度的幅值与渐开线齿轮相比均有明显下降，表明双渐开线齿轮具有更好的动方学特性；同时从双渐开线齿轮振动时域图及频谱图上未发现异常成分存在。

This model is completely characterized from the easily measured parameters. The modeling can be used to direct taper fabrication and to analyze optical properties of biconical fibers. Simulation results agree well with the experimental data.

从双锥光纤的工艺实现和技术应用目的出发，建立了可与实验上易测量的工艺参数相联系的高斯型等效双锥光纤模拟理论方法，可用于实际指导双锥光纤的制作及光学特性的分析，数值模拟结果与实验符合得很好。

It is found that the reference wavelength shift of transmission spectrum of the biconical fiber filter is linearly related to changes in the refractive index of the external medium surrounding the biconical fibers. Based on this wavelength-modulation principle, a sensing method of biconical fiberoptic sensors is proposed.

发现双锥光纤滤波器透射谱的参考波长随环绕双锥光纤的物质折射率变化而产生线性偏移的关系，提出了光谱调制型双锥光纤传感及信号检测方法。

Based on deep understanding on the relation between the properties of biconical fibers and the fusion temperature, a problem of fusion temperature monitoring is solved by means of a ceramic microheater and a fiber pyrometer. Effects of the fusion temperature on optical properties of biconical fibers are studied quantitatively. Biconical fiber devices with various filtering spectra are fabricated. Experimental results agree well with theoretical predictions.

根据对双锥光纤成形及光学特性与加热温度的深入理解，采用陶瓷管辐射加热和光纤高温传感新技术，解决了长期以来熔锥温度不易监测的关键技术难点，定量研究了熔锥温度对双锥光纤光学特性的影响，研制出多种具有不同滤波谱形状的双锥光纤器件，实验与理论模型预测的结果一致。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。