正项级数的广义Cauchy判别法

对正项级数的Cauchy,判别法作了推广,得出正项级数的广义Cauchy判别法.使原来的Cauchy判别法成为该判别之特例,从而扩大了它的使用范围.     

Numerical Experiments and Structural Transformation of NonLinear Evolution in Illposed Systems

Numerical experiments on nonlinear equations of the 1st and 3rdorder derivatives have been carried out through structural analyses in the phase space according to the numerical instability of illposed systems, with changes of initial values and parameters, etc.. The results show that the quantitative instability in an illposed system may reveal reversed transformation in system evolution by structural representation, and confirm A·Dauglas’ theorem that “a nonlinear equation does not satisfy the existence of the initial value in a linear wellposed system”.     

“锚-网-带-索”永久巷道围岩变形规律及分析

通过对锚网巷道支护理论研究，在林南仓矿二水平人车下山实施了“锚-网-带-索”联合支护，监测数据表明在永久煤巷中采用“锚-网-带-索”联合支护技术是可行的的。同时，分析了巷道围岩变形规律和变形构成，为永久锚网煤巷的推广及支护的优化设计提供依据。     

伯胺N_(1923)对贵金属的萃取(Ⅲ)——含有氯桥的双核配阴离子Rh_2Cl_9~(3-)的研究

用胺类萃取时,铑以双核的配氯阴离子存在于有机相中,无论用三辛胺,三异辛胺还是N_(1923)萃取时,萃合物的铑氯之比均接近2:9,可用Rh_2Cl_(9~(3-))表示。在此双核配阴离子之中,二个铑原子用三个氯桥相连成,这是一个共面的双八面体,红外光谱中Rh-C1振动峰的分裂证实了这种桥氯键的存在。除了1593cm~(-1)处的Rh-Cl峰之外,在1488cm~(-1)处出现了一个新峰,分裂发生在低频区意味着桥氯键的长度比端氯键长。在类似的双核配氯阴离子如Cr_2Cl_(9~(3-))与W_2Cl_(9~(3-)中,也存在有桥键的伸长。     

关于四次非协调板元的收敛性

讨论一种三角剖分下的四次非协调元,它是Ｃ０元,在每个单元上的形函数是一个完全四次多项式,由单元三顶点处的函数值与一阶偏导数值,及三边中点处的函数值与法向导数值所决定。将此有限元用于薄板弯曲问题,得出了关于能量模以及Ｌ２模的收敛阶估计。与已知为收敛的Ｍｏｒｌｅｙ元相比,其相应的收敛性结果更强。     

近水平沉积岩层公路隧道围岩变形特征研究

根据广元至巴中高速公路某隧道左线近水平沉积岩层周边收敛和拱顶下沉的观测数据,按照围岩级别和达到收敛位移总变形80%和90%的时间,通过对Ⅳ、Ⅴ级围岩段典型监测断面初期变形数据的数理统计和分析,得出了该隧道近水平沉积岩层围岩的变形特征和回归方程,并据此算出了与现场吻合程度较好的该隧道近水平沉积岩岩层隧道Ⅳ、Ⅴ级围岩总收敛的均值及满足二次衬砌要求的时间均值.最后介绍了位移加速度判据在评价该类隧道围岩稳定性和确定隧道二次衬砌施工时间的应用.     

低渗气藏水平井二项式产能方程修正

低渗气藏普遍存在启动压力梯度和应力敏感现象,而目前低渗气藏水平井二项式产能方程却未完全考虑这两个因素的影响,导致计算出的无阻流量出现较大偏差,单井合理产能认识不准。从低渗气藏渗流理论出发,在 Forchheimer 渗流方程中引入启动压力梯度和应力敏感系数,推导了含启动压力梯度和应力敏感的低渗气藏水平井产能修正方程。以川西某气藏岩芯实验数据和某水平井试井资料为基础,在考虑启动压力梯度时,采用修正方程计算出的无阻流量较常规二项式产能方程降低了9.44%;而在考虑应力敏感时,其无阻流量降低了35.08%;同时考虑两个因素影响时,无阻流量更是降低了43.41%;计算结果表明,运用修正后的方程计算的无阻流量与常规方法计算结果存在一定的差异性,建议使用修正的方法进行无阻流量计算与产能预测。     

缩合单宁用于微量元素螯合肥料的研究

落叶松单宁经降解及亲水化处理，与铁、锰、锌、铜离子反应制备出水溶性螯合物。螯合微肥的应用试验结果：苹果增产１９．８％～２５．４％，银杏叶增产２６．５％。落叶松单宁配体来源于天然成分，与植物有良好的亲和性，而且原料易得，成本低廉，可以成为传统ＥＤＴＡ微肥的的替代品。     

Digitization characteristics of geothermal information and structural analysis of 2011 off the Pacific coast of Tohoku Ms9.0 earthquake

Earthquake is one of the difficult problems that can not be solved as of this writing since the time when modern science was initiated over 300 years ago, and irregular events cannot be dealt with by using quantities examples before and followed by a view of the number of analysis systems in modern science; meanwhile, it covers the problem that how to use changeable information. Structural analysis method is developed particularly for the study of evolutionary transitional processes of the changing events by employing irregular information, and emphasizes the primitiveness of changes in events. Based on the data of sounding observation every 08 o’clock and 20 o’clock per day from China Meteorological Administration, in this paper, we employ the digital structural analysis method to analyze the process of the special, structural characteristics of 2011 off the Pacific coast of Tohoku Ms9.0 earthquake. The result shows that the method can reflect the process of geothermal structures before and after earthquake; it can reflect the congruity between geothermal "heat level" and the level of earthquake energy. When the structure before the earthquake is "the counter clockwise rolling current and the unstable structures" with "dry in lower levels and wet in upper levels", we should be worry about the problem of earthquake. In a word, geothermal information could reveal that earthquakes really would be "heralded".     

广义正则统计算符与非平衡过程热力学

本文简要介绍Robertson引入的、适用于非线性区(远离平衡状态)的广义正则统计算符,并给出非平衡态熵的表式。着重运用广义正则统计算符简洁、明了地推证了非平衡热力学中的两个重要定理:最小熵产生定理和超熵判据判据公式。在推导过程中,仅作了局域平衡的假定。