Ruin Probability with Variable Premium Rate and Disturbed by Diffusion in a Markovian Environment

We consider a risk model with a premium rate which varies with the level of free reserves. In this model, the occurrence of claims is described by a Cox process with Markov intensity process, and the influence of stochastic factors is considered by adding a diffusion process. The integro-differential equation for the ruin probability is derived by a infinitesimal method.     

浅谈数字逻辑实验教学改革

结合实验教学实际 ,对传统数字逻辑实验教学体系进行了改革 ,提出了在新形势下确立数字逻辑实验教学目标、内容、组织形式、手段和评价的措施 .     

浅谈实验教学中的信息能力培养

本文针对高等院校学生的创新能力与创新精神的教育问题,论述了实验教学中的信息能力培养内容、意义与基本目标.     

财务报表的时间性特征及其对财务分析的影响

财务报表中的各种指标按所反映的企业资金运动的时间状况，可分为反映企业资金运动在某一时刻状况的指标和反映企业资金运动在某一时期内发展变化结果的指标两大类：充分认识财务报表指标的时间性特征，有利于人们了解它对财务分析的影响。从而正确计算和运用某些财务分析指标。     

杜仲氨基酸成份的研究

本文借助氨基酸自动分析仪对杜仲离体培养愈伤组织、树叶、树皮中氨基酸含量进行了系统研究，共检测出１６种氨基酸，其总含量为４１．４９～２０８．２２ｍｇ／ｇ，其中包括７种必需氨基酸。     

NMR中InS体系的交叉极化和各向同性混合

常规的积算符法不能获得自旋为１／２ＩｎＳ（ｎ≥２）体系的密度算符在交叉极化和各向同性混合过程随时间演化的解析解。作者提出用投影算符法解决此问题，并以Ｉ２Ｓ体系的交叉极化过程为列分析了获得无相位畸变和强度失真ＮＭＲ谱的方法。     

蔸兰立枯病原菌及颉抗菌防治的研究

本文对１３种蔸兰，２４９个发病器官进行了病原真菌的分离，共获得真菌菌株１９２个，其中立枯丝核菌（Ｒｈｉｚｏｃｌｏｎｉａｓｏｌａｎｉｋｕｈｎ）有１１８个菌株，占整个真菌菌株的６１．４５％，用分离的立枯丝核菌ＹＫ－２６２，菌株对同色蔸兰等４种蔸兰进行了回接试验，共接４２株１３８片叶，发病叶１１２片，发病率平均８８．９％，而对照为８．３％．证明立枯丝核菌是该病的病原菌。用菌丝融合法测试，确定是一个新的菌丝融合群，按国际编号定为ＺＡＧ－８群。绿色木霉菌７８菌株对该病原菌有明显的颉抗作用，初步测定对同色蔸兰立枯丝核菌的防治有效率为８８．８％～９３．３％；对长瓣蔸兰为７７．８％～８１．１％；对带叶蔸兰为７４％．     

STABILITY CRITERIA FOR A CLASS OF UNCERTAINSYSTEMS WITH TIME—DELAY

Some stability criteria are obtained for a class of uncertain systems with time-delay usingLyapunov functional and analytic techniques. It is easy to check the criteria by making use of theboundedness of the uncertainties.     

Technical Notes ：STUDIES ON THE VALUE OF SECONDARY MARKET TO THE SUPPLY CHAIN

This paper investigates the impact of a secondary market, where retailers can buy and sell excessinventories, on the supply chain. We develop a two-period model with a single manufacturer and tworetailers. At the beginning of the first period the retailers order and receive products from themanufacturer, but at the beginning of the second period, they can trade surplus products betweenthemselves in the secondary market. We investigate the impact of the correlated dependence ofretailers' demand on both the quantity effect and the allocation effect under the secondary market.Lastly,we study potential strategies for the manufacturer to increase sales with the existence of thesecondary market.