α级Robertson函数族导函数的积分平均

利用对称递减重排的方法得到了α级的Ｒｏｂｅｒｔｓｏｎ函数族导函数的积分平均不等式，并利用此不等式得到了弧长和象域面积的精确估计。     

Rolle定理的几个推论

在减弱了 Rolle定理条件的基础上 ,证明 Rolle定理 ,又从 Rolle定理出发推证了高阶导数的一些性质。     

油田产量预测方法的应用与评价

产量预测是油田规划的重要内容。作者以阿克库勒油田 2 0 0 0～ 2 0 0 1年产量预测为实例 ,比较了产量递减率法、递减率法、递减模型法、单井综合法等不同的产量预测方法的优劣     

一类减算子的正不动点定理

研究了范围广泛的凸幂凝聚算子的正不动点,所得结果改进和推广了某些已知相应结果.     

一类单调算子不动点定理的推广

运用非对称迭代方法讨论了一类减算子和反向混合单调算子的不动点存在唯一性,并给出了迭代序列收敛于解的误差估计,所得结果推广了某些已知结果.     

Nonparametric estimation for hazard rate monotonously decreasing system

1.INTRODUCTION Estimationofdensityandhazardrateisveryimpor tanttothereliabilityanalysis.Formanysystems,the hazardrateisdecreasingmonotonously,thushazard rateestimationforhazardratemonotonouslydecreas ingsystemisespeciallyimportant.Generally,inor dertoestimatehazardrateordensity,peopleassume thatthedataaredrawnfromoneofaknownpara metricfamilyofdistributions,andthenestimatethe parametersbyleastsquarefitormaximumlikelihood estimation.Butthebasicassumptionsaresometimes unsound,anddisputed…     

弱压缩及减算子不动点的一些结果

讨论了半序Banach空间上减算子不动点以及弱压缩映像不动点的存在性问题,并结合这两类算子的特性得出了弱压缩减算子不动点存在性的新结果.     

拟单调函数的一个定理及其应用

本文给出了局部拟单调函数的定义,导出了在一个区间上函数是单调函数的充要条件是函数在此区间上是拟单调函数;并以此为基础,简捷地证明了关于函数单调性的几个定理与Rolle定理.     

动态规划在农业土地利用结构优化中的应用

运用灰色动态预测模型ＧＭ（１，１）和动态规划方法解决了农业土利利用结构优化的问题，取得了较好的结果。     

Natural gas releasing simulation experiment of coal in process of temperature decreasing and decompression and preliminary application in Ordos Basin

Natural gas releasing simulation experiments were carried out in laboratory for researching the gas storage capacity in state of high temperature and high pressure and its gas releasing potential in process of temperature decreasing and decompression. The exiting phase state was studied through measuring gas adsorption of coal and PVT phase calculating of natural gas. Gas volume, gas molecular and isotope compositions in process of temperature decreasing and decompression were measured, natural-gas yields released from the Upper Paleozoic coal strata after later Cretaceous (K3) were calculated and the formation of the reservoir was studied combining with the geological background. The results indicate that natural gas stored in coal has still bigger releasing potential after the uplift of Upper Paleozoic strata. There exists a weak gas supply-effluent equilibrium in the reservoir of Ordos Basin, which is another possible evidence that the Upper Paleozoic gas reservoir may be a deep basin gas reservoir.