引入

All of the samples were investigated by XRD, TEM, BET methods, and were added into in flexible PVC to test the flame retardancy and mechanical properties.

结果表明，在上述水热方法中，氢氧化钠环境水热与引入晶种水热法制得的氢氧化镁超细粉体比表面积低、极性小、分散性好，改性后添加于软质PVC中得到良好的应用效果，且引入晶种水热法易于工业化生产。

Through the Radon transformation of the normally ordered Wigner operator we introduce two mutually conjugate intermediate coordinate- momentum representations. Based on them we construct the appropriate quantum phase space theory which includes the new Wigner operator adapting to this space and construct the appropriate generalized Fredholm operator equation and then find its solution. We then deriving the Hermite polynomials operator identities by applying the Fredholm equation. We also reveal the connection between the generalized Wigner operator and the 2-dimension normal distribution in statistics, which is useful to study the quantum tomogram. As the application of the entanglement Husimi operator theory we calculate the Wigner function and the Husimi function of the one- and two-mode combination squeezed state , study their characters through drawing the three-dimensional graphics.

由正规序Wigner算符的拉登变换引入了两个互为共轭的中介坐标-动量表象，在此基础上我们建立了相应的量子相空间理论，其中包括引入适合该空间的新的Wigner算符；并在该表象的基础上，建立了广义Fredholm算符方程，求出了它的解，并运用该方程导出有关厄米多项式的算符公式；揭示广义Wigner算符与统计学中的随机变量的二维正态分布形式上的相似，这对于研究量子态的tomogram(是英文Tomography的派生词)有用。

Both the spousal transmission and mothertochild transmission resulted in higher intrafamilial transmission rate (47.8%[32/67] for familial transmission,40.9% [27/66] for MTCT,and 16.5% [19/115] for spousal transmission).Intrafamilial transmission rates of HIV by wife and husband carriers were 38.5%(37/96) and 9.5%(2/21),respectively.The intrafamilial transmission rate was higher in familes with younger wife infector and long time existense of spousal transmission risk factor.The MTCT was not influenced by the time of MTCT factor existence.

家庭内夫妻传播和母婴传播危险因素并存导致家庭传播率高达47.8%(32/67)，存在母婴传播因素的家庭传播率为40.9%(27/66)，存在夫妻传播因素的家庭传播率为16.5%(19/115)，妻子作为家庭引入病例导致38.5%(37/96)的家庭传播率，丈夫作为家庭引入病例的家庭传播率为9.5%(2/21)；妻子感染时的年龄越小，家庭传播率越高；夫妻传播危险因素存续时间越长，家庭夫妻传播率越高；母婴传播危险因素存续时间长短不影响家庭母婴传播率。

Along with the evolution of the theory of CIM, the need to intellectualize CIM systems raises. Accordingly, the need to intellectualize enterprise modelling architectures also brings forward. By the research of the 1st chapter, the author discovers that there are three areas in an enterprise modelling architecture can introduce intellectual techniques, viz. modelling framework, modelling method and simulation. Whereas most architectures, such as CIMOSA, ARIS, GIM and PERA, can not satisfy the above-mentioned requirements.

经过第一章研究分析，本文作者发现在企业建模体系结构中的建模框架、建模方法和仿真运行三个方面能够引入智能化方法，即在建模框架中增加通用性维来降低建模难度、缩短建模周期和提高模型的可重用性，在建模方法中全面引入面向对象方法实现建模元素和企业模型两方面的构件化，在模型仿真时应用人工智能领域的成果并提供决策支持。

Excepting for customer, merchant and bank, the model introduces an intermediator to process the payment and introduces an authentication organization to authenticate bank, merchant and intermediator.

除参与交易的用户、商家和银行之外，模型中引入了第三方进行支付处理，引入认证机构对银行、商家和第三方进行身份认证。

Further, the CA is provided with an identifier of a content introducer (201), which introduces the particular content item in the network.

而且，向CA提供在网络中引入特定内容项目的内容引入者(201)的标识符。

By carrying out ~1H spin-diffusion experiments,the domain sizes of DNA in the complexes were determined.The domain size of DNA is found to decrease greatly when the N/P ratio changes from 0.5 to 3 and changes only slightly with further increase of the N/P ratio.After making a thorough analysis and discussion on drug control release and gene delivery systems with general NMR techniques,we presents a method of 1D PFG NMR technique to realize quick observation on the Mw change of polymer during its degradation process.Moreover,according to the inverse Laplace transformation theory and based on a function of diffusivity distribution of polymer in solution,2D PFG NMR technique is developed to measure the Mw distribution of polymer.Combined with Monte Carlo simulation,the degradation mechanism can be figured out.

从发展新的核磁共振方法，拓展核磁技术应用范围的角度来看，本文首次提出了采用一维脉冲梯度场技术快速测量降解过程中聚合物的分子量变化的新方法；并首次将Monte Carlo模拟与PFG实验结果进行了关联分析，从而不仅可以实时观测体系分子量的变化，而且可以对体系的降解机理进行深入分析；首次将延伸型指数函数引入对自扩散曲线的拟合，并通过反拉普拉斯变换，建立了一种实时测量聚合物体系分子量分布的新方法；首次将固体核磁共振的研究方法，引入聚合物/DNA复合物体系的研究。

They didn t study the detailed stability: irreducibility, regular, positive Harris recurrence, and unstability: non-positivity. In the paper we study the drift criterias of these forms of st...

本文利用Drift有关的判别法来给出这些性质的判别条件、 PDMP最初是由Davis引入，其引入的PDMP的首次跳时的分布函数要求必须是绝对连续的，本文是针对刘国欣推广的PDMP模型。

Constituting dicycle; 2. region selectively reducing six-membered ring ketocarbonyl radical; 3. introducing 7alpha-hydroxy group; 4. Aldol reaction to introduce side chain and obtain 8alpha-hydroxy group; 5. oxidizing the position 7 hydroxy group into ketone; 6. turning the configuration of the position 7 hydroxy group; 7. glycosidating the position 7 hydroxy group; and 8. eliminating protecting group to obtain the target compound.

该方法包括如下步骤：(1)双环的构建；(2)区域选择性还原六元环酮羰基；(3)7α-羟基的引入；(4)Aldol反应引入侧链，同时得到8α-羟基；(5)7位羟基氧化为酮；(6)7位羟基构型的翻转；(7)7位羟基的糖苷化；(8)脱除保护基得到目标化合物。

After a century, the kinetic theory of gases was also won the rapid development of .1857, the Clausius for the first time clearly statistical concepts, derived gas pressure, volume and temperature inter-correct relations, but also in 1858 introduced the concept of .1859 free path of molecular motion, the Maxwell velocity distribution law is derived, established the mathematical theory of transport processes .1868, the Boltzmann velocity distribution law was introduced in the gravitational field .

此后一个世纪，气体动理论才又获得飞跃发展。1857年，克劳修斯第一次清楚地说明统计概念，导出了气体压力、体积和温度间的正确关系，还于1858年引入分子运动自由程概念。1859年，麦克斯韦导出了速度分布律，建立了输运过程的数学理论。1868年，玻耳兹曼在速度分布律中引入重力场。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。