The results showed that the stress - strain realtionship of pt could be expressed with exponential functions , and there were significant differeces between the normal group and the immobilized group in their theoretical curves of stress - strain relationship and two material constants of pt . also , significant differences were found in tensile strength and tangent modulus between the two groups , but the maximum load of pt in the immobilized group did not decrease significantly 结果显示：正常组与制动组间髌韧带的应力-应变关系理论曲线有明显不同，其材料常数亦有显著差异；制动组髌韧带的极限强度和弹性模量较正常组均有明显下降，其极限载荷下降不明显。
In the theoretical description of grazing emission fluorescence , the mode of fluorescence intensity emitted from layered materials dependence of grazing angle is established by applying asymptotic approximations to double fourier integrals , and the theoretic calculation formula of fluorescence intensity from a thin layer is derived . by the derived expressions , the theoretic simulation curves of several thin layers on si substrate are calculated . in the experimental setup , the requirement of construction of the setup and some important parameters are brought forward 最后，利用平稳位相方法建立了掠出射情况下薄层样品产生的荧光强度和掠出射角的对应关系数学模型，推导了薄层样品荧光强度理论计算公式，并以此为依据模拟计算得出了cr 、 fe 、 ti和ni等几种以si作基底的单层薄膜样品的荧光强度随掠出射角变化的理论曲线。
We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam , off axis phase matching , divergence angle of pumping , time above threshold , high gain coefficient of nlo crystal , fluctuate of cavitylength , spontaneous radiation , according to the momentum and energy conversion laws , and the sellmeier equations of the clbo , we calculated curves of the type - i and type - ii compared with the bbo ' s 根据能量动量守恒关系和clbo的色散方程，详细分析了由于泵浦光的线宽、泵浦光偏轴泵浦、泵浦光的发散角、泵浦光功率超过参量光振荡阈值一定倍数、高增益系数、有效腔长波动以及自发辐射引起的参量光线宽，并得到了与bbo晶体在类、类相位匹配下比较的理论曲线。
( 二 ) using simulative test and onthogonal test to analyze the theories of folded point reactions of chloroamine disinfectant water and the mixed reactions of conveying tubes water by different disinfectant technique . a ) when organic contaminations of original water reach some degree , the reactions of some organic nitrogenous and activated chlorine in original water and the transfoms between organic nitrogenous and ammonia - n will disturb the produce and stability of 1 - chlonoamino . the curve got by the sutra folded point chlorination theory will have greatly changes ( 2 )采用生产性实验，分析氯胺消毒水的折点反应理论及不同消毒方式的管网水的混合反应，实验室及生产实验表明： a )当原水有机污染达到一定程度，原水中部分有机氮与活性氯的反应以及有机氮与氨氮之间的转化将干扰一氯胺的生成及稳定，经典折点加氯理论曲线将发生较大变化。
