Hammerstein型非线性积分方程解的存在性

该文采用化为积分方程组的方法 ,利用锥上不动点指数计算 ,在不要求非线性项 f (x,u)非负的情况下 ,证明 Hammerstein型非线性积分方程 φ(x) =∫Gκ(x,y) f (y,φ(y) ) dy非平凡解和多解存在性的一些新的结果。此结果可用来证明非线性常微分方程两点边值问题解的存在性。     

精确边界条件导出的最优化五阶斯托克斯波

本文应用变分原理的方法，根据精确的动力自由表面边界条件导出五阶斯托克斯波。所得 边界条件的误差平方和最不意义的最优化解，本文还讨论了确定伯努利方程中的示知函数ｆ（ｔ）的方法。     

南极布兰斯菲尔德海峡表层沉积物的酸解烃

本文研究了南极布兰斯菲尔德海峡表层沉积物的酸解烃分布特征，并佐以热释汞和蚀变碳酸盐的分析。从酸解烃中甲烷含量的低值和Ｃ１／（Ｃ２＋Ｃ３）比值，以及乙烯的存在等判断，布兰斯菲尔德海峡沉积物的烃类气体来自于生物成因。     

Second-Order Solutions for Random lnterfacial Waves Under Steady Uniform Currents

In the present research, the study of Song (2004) for random interracial waves in two-layer fluid is extended to the case of fluids moving at different steady uniform speeds. The equations describing the random displacements of the density interface and the associated velocity potentials in two-layer fluid are solved to the second order, and the wave-wave interactions of the wave components and the interactions between the waves and currents are described. As expected, the extended solutions include those obtained by Song (2004) as one special case where the steady uniform currents of the two fluids are taken as zero, and the solutions reduce to those derived by Sharma and Dean (1979) for random surface waves if the density of the upper fluid and the current of the lower fluid are both taken as zero.     

Analytic Solution of Interaction Between Surface Waves and Floating Elastic Plates with Elastic End-Restraints

Based on the dynamic theories of water waves and Mindlin plates,the analytic solution of interaction between surface waves and two-dimensional floating elastic plates with edge-restraint is constructed by use of the Wiener-Hopf technique.Firstly,without regard for elastic edge restraint,the wave-induced responses of elastic floating plate analyzed by the present method are in good agreement with the results from literature and experimental results.Therefore,it can be shown that the present method is valid.Secondly,three end-restraint cases(i.e.,the left-end elastic restraints,the both-end elastic restraints,and the right-end elastic restraints)are proposed to reduce the vibration of floating plates,in which the spring is used to connect the sea bottom and the floating plate's left(or right)edge.The relations between the spring stiffness and the parameters of wave-induced responses of floating plates are discussed.Moreover,the effective method to reduce the vibration of floating elastic plates can be obtained through comparison.     

分离入射波与反射波的解析方法

提出了一种新的分离入射波和反射波的解析方法（AM）。利用两点处的 波高信息，运用Hilbert变换得到波浪信号在复域内的解析表达式，不需要计算合成波高和相位差即可实现信号的分离。根据分离结果，可以精确地估计入射波与反射波的幅值以及反射系数等参数，能够获得入射波与反射波之间的相位信息，并且可方便地用于不规则波的分离。文中通过数值模拟与物理模型实验对AM法进行了检验，所得的结果与实际值非常吻合。     

单支点桩锚支护结构中土层参数的分算与合算

以单支点桩锚支护结构为例,应用等值梁法和自由端法对土层参数分别采用分算与合算两种方法进行计算,结果表明:当各土层参数差异较大时,采用分算与合算计算得出的插入深度、支点力、最大弯矩等参数均相差较大,且对支护结构的设计精度有较大的影响;从计算的结果可以看出,选用自由端分层法计算得到的结果较为合理.     

二色桌片参酶解液对转化细胞的效应

用二色桌片参（Mensamariaintercedens）酶解液处理转化的人胚肺成纤维细胞（NLF）后，细胞生长受到显著抑制，抑制率达64．84％，光镜下细胞透光性加强，铺展较好，细胞核形更为规则，核畸形现象减少；线粒体结构趋于正常；软琼脂集落实验表明，细胞集落形成率由23ｘ10－5下降至12．5ｘ10－5，裸小鼠致瘤实验显示抑瘤率为82．39％，差异显著（p＜5％）。结果提示，二色桌片参酶解液可能逆转转化的HLF细胞的恶性表型，对其有一定的诱导分化作用。     

贻贝粉酶解液提取复合氨基酸

报道了以脱脂后的贻贝粉为原料，采用酶解法从其酶解液中分离提取复合氨基酸的工艺。其收率为２０％，纯度约为９０％。其中必需氨基酸（不计色氨酸）约占复合氨基酸总量的５５％，其氨基酸模式与ＦＡＯ／ＷＨＯ组织确定的模式及人乳模式进行了对照，通过适量添加个别氨基酸可使其配比接近人乳模式。     

一类广义Sine-Gordon方程的概周期解

用最大值原理和Banach压缩映像原理研究一类广义Sine-Gordon方程的概周期解问题,证明概周期解的存在‖u‖L∞<π2中的唯一性。