The thesis finds out the trend of the urbane land value fluctuation , and presents a reasonable prediction on the land value in three years " time on the base of the fact that the demands on land for different usages have been increasing since 1988 and the analysis of the relevant fluctuation diagrams which come from the basic land value in 13 metropolises and the historical indexes of it in hunan by the combinational ways of average insert and average output . while studying the way of keeping the land value balanced among different regions , the author analysis the basic land prices of 13 cities in a systematic classifying way and labels them with 4 levels according to their own characteristics . at the same time , the land values are measured by relevant index with the consideration about the economic situation in the whole society 本文在研究湖南省13个设区城市的基准地价和历年地价指数的基础上，通过平均插值法与外插法相结合的方法，求出各城市自1988年以来各年度各类用途土地的涨幅，在此基础上拟合出地价趋势模型，分析对应的变化曲线，根据各城市地价的时间分布特征对未来三年内的地价做出预测；本文在研究区域地价平衡时，首先采用系统聚类的方法对各城市的基准地价进行聚类分析，最终将13个城市按照其地价特点分成了4个层次；其次采用相关系数度量各城市地价与其他社会经济发展变化的相关性。
Within the same year , precipitation mainly concentrates in june , july , august and september , april and november were the turning point of annual rainfall ; the dates of effective rainfall are less , and the dates of ineffective rainfall are more . there is significant or highly significantly correlations between annual precipitation and rainfall from july to october 年降水量在时间分布上，主要集中在6 9月， 4月和11月为一年中降水量变化的转折点；年均降水日数88天，显效降水日数少，占同期的13 . 6 ；无效降水量占年降水量的比例高，近47 ； 7 10月的月降水量与其年降水量都有显著或极显著的相关性。
A briefly summarization for the general law of rainstorms in northeast china was presented in this paper . and the scientific research situation about heavy rain in both china and abroad was outlined . using fifty years typhoon annals data , we analyzed the statistic characteristics about spatial and temporal distribution of typhoon , which may influence liaoning province 本文概述了东北暴雨的一般规律和统计事实，介绍了国内外对暴雨的综合研究情况，然后用50年台风年鉴资料，把热带气旋对辽宁的影响，从路径、时间分布、转向点位置作了统计分析，并概括出热带气旋影响辽宁时的天气系统配置型。
Additionally , provided that not all interarrival times distribution and ser - vice times distribution are of density function , the integral representation of the transient disribution of the queue length of these four queueing systems as indicated above is obtained by applying the theory of markov skeleton processes 此外，当到达间隔分布和服务时间分布不都有密度函数时，应用马尔可夫骨架过程理论，亦可得到上述四个排队系统的瞬时队长分布的积分表示。在处理上述这两个内容截然不同的部分时，所使用的基本方法是一致的。
By the statistical analysis of the time distribution of the accidents , the accidents reasons , and the relationships between the accidents and the ship type , the accidents and the bridges , some important conclusions are made . in addition , the analysis of the ship - against - bridges accidents such as visibility , day and night , upriver ships and downriver ships are performed 通过对事故的时间分布、事故的原因以及事故与船型、事故与桥梁的关系的统计分析，得出了一些重要的结论，此外还对能见度、黑白天、上行下行等船撞桥事故的主要影响因素进行了分析。
In this paper , the repairable queuing system with police is studied . some important queuing quantities and reliability quantities are in detail discussed as follows : ( 1 ) using the renewal process theory and the method of stochastic decomposition , both the transient and equilibrium distributions of the queue length from any state are discussed , and the recursion expression of the equilibrium distribution is given by furthermore , the generating function of equilibrium queuing length distribution is given by ( 2 ) the distribution of waiting time is discussed , and the mean waiting time is given by ( 3 ) the departure of the system is discussed , and the mean value of departure customers when is given by 具体如下： ( 1 )利用更新过程理论和随机分解方法,讨论了从任意初始状态出发队长分布的瞬态解和稳态解,得到了队长平稳分布的递推公式：并进一步求得了系统的稳态队长分布的母函数( 2 )讨论了稳态等待时间分布,求得了平均等待时间： ( 3 )讨论了系统的输出过程，求得了长期单位时间内离去顾客的平均数： ( 4 )讨论了服务台的不可用度，得到了稳态不可用度: ( 5 )讨论了内服务台平均故障次数，求得了长期单位时间内的平均故障次数
According to the theory of space structure , time structure and analysis of tourism consumers , shaoshan , as an important red - tourism place , has typical red - tourism market characteristics , so the development measures should be taken in market orientation , area co - operation and products development 根据对旅游客源市场的空间结构理论、时间结构理论和旅游消费者行为的分析，韶山作为重要的红色旅游地，客源市场在时间分布、空间分布和旅游者基本特征等方面，具有典型的红色旅游市场的特点，客源市场的开发必须在市场定位、区域合作和产品开发等方面采取一系列相应的措施。
In the tidal estuary , the current is complex , and the flow is oscillatory . some experiential formulation has presented to calculate the vertical turbulent mixing coefficient . on the base of analysis of the hydrodynamic in the estuary , the theoretical equation , which describes the distribution of the space and time of vertical turbulent exchange coefficient , has developed , the equation has applied to the practice 潮汐河口水流呈往复振荡运动，本文在分析潮汐河口水动力特性基础上，考虑了惯性力及重力等项的影响，通过理论推导得到潮汐河口垂向紊动交换系数的空间分布及时间分布的计算公式，以及垂向平均紊动交换系数的时间分布的计算公式，并将其应用于潮汐河口的实际计算中。
In this paper . flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied . according to characteristic analysis , the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model . on the basis of analog computing analysis and discussion of theoretical model . by means of pulse tracer method , experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level , feeding flow rate and circulation flow rate . the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4 , the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series . an amendatory model has been established by the regression method 作者首先在对反应器进行特征分析的基础上，建立了描述中试规模多级外循环流化床生物反应器流动特性的串级全混流模型，并对理论模型进行了模拟计算分析和讨论，在此基础上，作者分别在无循环和有循环(改变示踪剂用量、流加流量和循环流量)的条件下，利用脉冲示踪法对一到五级串联外循环流化床反应器进行了停留时间分布实验，结果表明，在循环流量与流加流量的比值达到大于等于4时，中试规模多级外循环流化床反应器的流动特性接近串级全混流模型，通过数据回归拟合的方法，建立了中试规模一到五级串联外循环流化床反应器的流动模型。
