基于非正态分布的投资风险测度方法

本文通过计算风险点对投资项目的风险进行定量分析,引进当量正态化的方法解决了独立变量非正态分布下的风险的测度问题,在此基础上提出一种新的投资项目风险测度方法。     

低渗透砂岩石油渗流的微观模拟实验研究

采用天然低渗透砂岩微观模型，通过与实际地质状况较为相似条件下的油驱水实验，模拟石油在低渗透砂岩孔隙内的渗流，分析和探讨了低渗透砂岩孔隙介质中石油的微观渗流机理。研究结果表明，石油在低渗透砂岩中渗流路径曲折复杂，运移渗流模式有稳定式、指进式和优势式3种；石油在低渗透砂岩中渗流存在启动压力梯度，启动压力梯度与砂岩孔隙度关系复杂，而与砂岩渗透率有很好的相关性；石油的渗流速度与驱替压力呈很好的相关性，石油以相同速度在不同渗透率级别的砂岩内渗流时所需要的驱替压力随砂岩渗透率的增大而降低。     

一类n阶迭代泛函微分方程解的存在唯一性

利用Banach不动点定理讨论一类带有初值条件的n阶迭代泛函微分方程解的存在性和唯一性.     

政府采购的国际经验与我国的政府采购管理

综观世界其它国家对政府采购的管理实践,借鉴国际经验,应从以下几个方面对我国政府采购进行管理(1)制定和完善政府采购法律和政策;(2)建立我国政府采购的管理体系;(3)确定我国政府采购模式;(4)建立仲裁机构;(5)建立高效政府采购信息系统;(6)有序开放我国政府采购市场以保护民族产业.     

Wavelet‐based estimators for mixture regression

We consider a process that is observed as a mixture of two random distributions, where the mixing probability is an unknown function of time. The setup is built upon a wavelet‐based mixture regression. Two linear wavelet estimators are proposed. Furthermore, we consider three regularizing procedures for each of the two wavelet methods. We also discuss regularity conditions under which the consistency of the wavelet methods is attained and derive rates of convergence for the proposed estimators. A Monte Carlo simulation study is conducted to illustrate the performance of the estimators. Various scenarios for the mixing probability function are used in the simulations, in addition to a range of sample sizes and resolution levels. We apply the proposed methods to a data set consisting of array Comparative Genomic Hybridization from glioblastoma cancer studies.     

Functional Neurological Symptom Disorder (Conversion Disorder) from an Interactional Approach: A Composite Case Study

Functional neurological symptom disorder, alternatively termed conversion disorder (FNSD-CD) (Although the DSM-5 utilises the term 'conversion disorder', practitioners and consumers consider this to be an outdated, unsubstantiated and often stigmatising term. In accordance with this, the current terminology used in the field is 'functional neurological symptom disorder'), involves symptoms of altered voluntary motor or sensory functions without identifiable nervous system disease or pathology. It is considered a psychiatric disorder and is, thus, listed in the Diagnostic and Statistical Manual of Mental Disorders (5th Ed.; DSM-5). As per the nosology of the DSM-5, the discrete behavioural or psychological syndrome or pattern observed in FNSD-CD is assumed to be a function of a problem of, or a disorder within, the individual. Accordingly, the psychiatric approach to FNSD-CD, as set out in the DSM-5, invokes an assumption common to the medical model which is that of lineal (i.e., straight-line) causality, namely, causal events are arranged in a lineal sequence. The interactional approach, however, which is a development of general system theory in the field of family therapy, offers an alternative approach to understanding psychiatric disorders. Specifically, this approach places the emphasis on the relationships between individuals and their reciprocal influences on – including their psychological and emotional wellbeing with – one another. It draws on the assumption of nonlineal (i.e., circular) causality, namely, causal events are arranged in a circular sequence. From an interactional approach, therefore, FNSD-CD is thought to be a function of a problem of, or a deficit within, the individuals’ relationship/s, rather than within an individual, per se. This article utilises a composite case study to investigate FNSD-CD from an interactional approach.     

3D-3C地震资料处理方法在SLG气区的应用

利用转换波（P-SV)的传播速度比纵波低，传播不受孔隙流体的影响，传播规律和纵波有较大的区别，可以进行有效的油气识别。针对鄂尔多斯盆地储层以陆相中的三角洲平原分流河道砂体为主，储层分布变化大，横向上低孔低渗，储层物性的非均质性比较强，P-SV波资料处理与P波资料处理有一些差异的特征,对SLG气区实际3D-3C地震资料处理中的转换波静校正问题、共转换点（CCP）道集抽取方法、转换波的速度分析方法、动校正方法及转换波和纵波比例压缩方法等进行了研究，建立了3D-3C地震资料处理方法和技术，并取得了良好的应用效果，可以将该方法在实际生产中推广应用。     

浅谈声乐教学中的“换声区”训练

换声训练中讲究循序渐进的声音自然过渡,注意对真假声混合运用比例和共鸣位置的调整。     

西方国家和文化思想内涵与社会理想模式及其正面评价

西方国家和文化思想内涵的演变走过了一条由对自然、社会的认识逐渐转变到对政治制度的和谐探讨的道路,实现和谐社会的途径偏重于和谐制度的设计,及其对整个社会和谐发展的影响,逐渐形成了五种和文化社会理想模式。和文化社会实践主要通过民主体制、法律体系、福利制度三方面体现。     

一类奇异Sturm—Liouville问题的Weyl函数的联系方程

讨论了两端奇异的Sturm—Liouville方程-（py＇）’＋qy=λy在零点满足不同初始条件下的Weyl函数之间的联系方程．以及Weyl函数的连续性和可微性．