蒽吡啶酮类溶剂染料的合成和溶解性能的研究

以4-溴-N-甲基-1，9-蒽吡啶酮为主要原料，采用不同的方法与十六种胺进行缩合得到相应的染料。对合成的染料进行了溶解度的测定，并对取代氨基与染料溶解度的关系进行了初步探讨。     

论我国巨灾保险监管体系的构建——基于国际经验的视角

近几十年来,全球范围内的巨灾风险发生的频率和损失的程度都呈上升趋势,对巨灾风险管理与监管工作提出了严峻的挑战。本文通过分析各国巨灾保险制度与监管的特点,结合我国巨灾风险管理的实际情况,提出建设市场与政府相结合的巨灾保险制度,加强巨灾保险市场行为与偿付能力及资本市场监管的几点建议。     

企业偿债能力浅析

给出了一系列衡量企业短期偿债能力和长期偿债能力指标的公式 ,并通过实例对这些指标进行对比与分析 ,从而明确如何对企业偿债能力的强弱进行评价 ,以帮助人们更好地投资。     

不同规模下中国非寿险公司偿付能力评估模型

以我国非寿险公司的偿付能力为研究对象,探讨了不同规模下中国非寿险公司偿付能力的评估问题。将中国的非寿险公司分为大、中、小3种规模进行研究,采用灰色关联分析法、主成分分析模型,建立了不同规模下中国非寿险公司的偿付能力预测模型,并分析和解释其效果。得出了国外现有的偿付能力研究仅适合我国中规模非寿险公司;我国非寿险公司偿付能力应按规模分类监管;我国现行指标体系不能完全解释非寿险公司的偿付能力额度的结论。     

Approximation of insurance liability contracts using radial basis functions

ABSTRACT

We introduce the Option Interpolation Model (OIM) for accurate approximation of embedded option values in insurance liabilities. Accurate approximation is required for ex-ante risk management applications. The OIM is based on interpolation with radial basis functions, which can interpolate scattered data, and does not suffer from the curse of dimensionality. To reduce computation time we present an inversion method to determine the interpolation function weights. The robustness, accuracy and efficiency of the OIM are investigated in several numerical experiments. We show that the OIM results in highly accurate approximations.     

发达国家保险监管经验对我国保险业的启示

对保险业进行监管是世界各国普遍采取的办法。通过借鉴发达国家关于保险业监管的经验,针对中国保险业监管发展的现状与不足,提出我国保险业监管应该顺应国际松散监管的潮流,从保证偿付能力、规范资金运用和加强保险创新等方面人手,完善保险业的制度及法律环境。     

Viscosity-temperature relationship of dilute solution of poly(vinyl chloride) in cyclohexanone and in its blends with xylene

Absolute viscosities of dilute solutions of poly(vinyl chloride) (PVC) in cyclohexanone and in its blends with xylene were determined at temperatures ranging from 5 to 50°C and in THF at 5–30°C. The simple Arrhenius reaction kinetics equation, used by Anrade to analyze the viscosity data of liquids and later by Moore for dilute polymer solutions, was used to estimate the thermodynamic parameters for the flow of PVC solutions and the quality of solvents. This relationship was also used to calculate thermodynamic parameters for PVC in binary solvent systems. The data of the activation energy of the viscous flow and preexponential factor were further analyzed by using the empirical relationships suggested by Moore for flexible polymer chains. The parameters obtained from these relationships are used to estimate and compare the solvency power of solvents and solvent blends. A blend of 1 : 1 cyclohexanone and xylene is found to have better dissolution characteristics for PVC than have cyclohexanone and other blends. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 65: 2749–2760, 1997     

助溶剂对甲醇汽油抗水相分离能力影响的研究

文章研究了不同醇油比条件下甲醇汽油的遇水抗水性能,通过加入不同类型的助溶剂提高了甲醇汽油的抗水能力.其中正辛醇的效果最好,异丙醇效果最差.M50室温下加入1%蒸馏水保持不分层需添加异丙醇4.25%,需添加正辛醇2%,助溶剂的加入顺序对甲醇汽油的抗水性能没有影响.碳原子数越多,助溶效果越好,碳原予数相同时,直链结构的表面...     

A nature inspired Ying–Yang approach for intelligent decision support in bank solvency analysis

Since the collapse or failure of a bank could trigger an adverse financial repercussion and generate negative impacts, it is desirable to have an early warning system (EWS) that identifies potential bank failures or high-risk banks through the traits of financial distress. This research is aimed to construct a novel fuzzy neural CMAC as an alternative to analyze bank solvency, in which a nature inspiration motivated from the famous Chinese ancient Ying–Yang philosophy is introduced to find the optimal fuzzy sets, and truth value restriction (TVR) inference scheme is employed to derive the truth-values of the rule weights. The proposed model functions as an early warning system and is able to identify the inherent traits of financial distress based on financial covariates (features) derived from publicly available financial statements. Our experiments are conducted on a benchmark dataset of a population of 3635 US banks observed over a 21 years period. Three sets of experiments are performed – bank failure classification based on the last available financial record and prediction using financial records one and two years prior to the last available financial statements. The performance of the proposed Ying–Yang FCMAC network as a bank failure classification and early warning system is very encouraging.     

带有交易成本和红利的消费投资模型值函数性质的研究

利用HJB方程粘性解理论,考虑带有红利收益和交易成本后,对现有最优消费投资模型作了推广,研究了值函数的凸性,连续性和齐次等性质,并给出了值函数的上界,这些性质有助于进一步研究投资者在带有红利和交易成本情形下的最优消费投资策略.