冠醚在电子工业中的应用

1 冠醚在电子工业中的应用 国外已有专利报道,冠醚可用作电子器件的表面处理剂以除去Ns~+、K~+,可以改进电容器的性能,提高光电显示器件的使用寿命,制备特种气体等。这表明冠醚在电子工业方面的应用有着很大的潜力。下面介绍一些典型实例。     

Infinitesimal sensitivity of posterior distributions

We measure the local sensitivity of a posterior expectation with respect to the prior by computing the norm of the Fréchet derivative of the posterior with respect to the prior over several different classes of measures. We compute the derivative of the posterior upper expectation when the prior varies in a restricted ?-contamination class. A bound on the global sensitivity of a class of priors is obtained. As an application, we show that of all sets with posterior probability 1 — α, the likelihood region minimizes the norm of the Fréchet derivative over the ?-contamination class and so is, in some sense, the most robust region with this posterior probability. But there exist counterexamples to this result for other classes of priors.     

中美金融消费者保护制度比较

在后危机时代背景下,金融消费者保护这一议题多次被各国政府列入重要的议事日程。我国金融消费者保护一直被忽视,法律法规不完善已经无法适应金融市场发展的需要。对中美两国金融消费者保护制度进行比较研究,可以进一步认知当前我国在此方面的不足,并在借鉴美国经验的基础上,结合中国本土资源,设计出一个全方位、高效率的金融消费者保护法律制度框架体系,在后危机时代金融市场中更好地保护金融消费者的权益,从而推动我国金融市场的稳健发展。     

四聚1,3-二硫杂环戊烯-2-硫酮冠醚衍生物的合成

以二(碘乙基)醚与4,5-二氰乙硫基-1,3-二硫杂环戊烯-2-硫酮为起始原料,采用氰乙基保护与脱保护技术,通过多步缩合反应以较好的收率合成了含4个1,3-二硫杂环戊烯-2-硫酮并硫杂36-冠-12(5),给出了目标化合物的有效合成方法,并用1HNMR,MS和EA对其进行了表征.     

论罗蒂的后现代实用主义和幸福主义

罗蒂立足后现代主义、相对主义、过程哲学和日常生活哲学建立的后现代实用主义,批判了传统哲学的概念化、教义化和虚假观念;肯定了解释学的认知功能和有关同情心与道德心的重要作用;否定真理观上的绝对性、永恒性和不变性;反对理性主义、科学主义和文化一元论,主张解构形而上学,创立无冕哲学,提倡自由主义、平等主义、多元主义、人道主义、审美主义、浪漫主义,及幸福主义。     

我国金融衍生产品市场研究

回顾和总结了我国金融衍生产品市场的发展历史及背景,对我国金融衍生产品市场走向及新品种开发进行了探讨。我国金融衍生产品市场正处于蓄势待发阶段,机会与风险并存,建议有关金融管理部门能把握时机,适时推出新的金融衍生产品及其管理办法,以促进我国金融产品的创新和金融业务的健康发展。     

镀锌层表面硫代酰胺化合物彩色配合物的XPS和AES研究

CH3CSNH2、H2NCSCSNH2、H2NCSNHNH2等硫代酰胺化合物在锌镀层表面发生配位化学反应,获得了多种不溶性彩色配合物膜,膜层有良好的装饰性能。XPS和AES分析结果表明,多数硫代酰胺化合物分子中的硫代酰胺基团在参与配位反应时发生了去质子化,N、S均发生了配位,另有部分硫代酰胺基团未去质子化,直接与Zn2 配位。从其AES深度剥蚀曲线的组成恒定区求得了膜层的厚度。     

浅析北魏前期立子杀母与太后干政的并行发展

拓跋珪为了防止后妃和外戚干政制定了“立子杀母”制度,此制在孝文帝以前一直被一丝不苟地遵行。但尽管 如此,太后干政现象仍然层出不穷,尤其是在北魏前期两者几乎呈现并行发展的状态。这一现象的产生是由于“立子杀母”制 本身存在很多弊端,而且北魏政权一些独有的特点也为太后干政提供了条件。     

An algorithm for the evaluation of the incomplete gamma function and the first two partial derivatives with respect to the parameter

A simple to use, straight coded, Fortran 4 algorithm, is presented. This algorithm has the ability to:

1) evaluate the Incomplete Gamma function, Y(r,λx), for parameter values in the range 0 < r < 20.0 and upper limit of integration values in the range 0 75.0;

2) evaluate both the first and second partial derivatives of y with respect to the parameter

3) evaluate both the Euler Di and Trigamma functions, ψ(r) and if ψ′(r)for 0<rf.20.0.

In all cases the accuracy is nine or more significant figures. The user has several choices of data output format     

Pricing longevity-linked derivatives using a stochastic mortality model

Abstract

We propose a 2-factor MBMM model with exponential Lévy process to develop a stochastic mortality process. The two components are fitted by two independent NIG distributions. Compared to Lee–Carter model or 1-factor MBMM model, our mortality model explains more variation and improves the goodness of fit by including the second time component. Based on the improved model, we price three longevity-linked financial instruments, namely the longevity bond, q-forward and s-forward. The pricing is demonstrated on English and Welsh males aged 65 in 2013. Results indicate that the 2-factor MBMM model gives the highest price for mortality-related type of contract.