The threshold of autoregressive orders is obtained to identify the flow regimes of bubbling bed and turbulent bed . the accuracies of identification of bubbling bed and turbulent bed are 94 . 3 % and 80 . 0 % respectively . the arma models of the signals acquired from experiments are constructed 在此基础上，利用模型阶数进行流型的判别，初步实验结果表明，所采用流型辨识方法是有效的，气固流化床中鼓泡床和湍动床的辨识成功率分别为94 . 3和80 . 0 。
Monthly average composite potential geographical high in nine levels ( 850hpa , 700hpa , 600hpa , 500hpa , 200hpa , 100hpa , 70hpa , 50hpa , 30hpa ) are studied , and we also study the composite potential geographical high ' s similarity between 500hpa and other eight levels . all the studies show that the drought flow pattern " west positive east negative " and flood flow pattern " west negative east positive " not only exist in 500hpa presented in 80s last century , but also exist in other levels 并计算了500hpa合成高度场与其余8个层次合成高度场旱、涝流型的相似性度量，结果表明：上世纪八十年代提出的500hpa层次上高原东北侧“西正东负” (或“西高东低” )少雨流型及“西负东正” (或“西低东高” )多雨流型的特征，在850hpa 70hpa整层大气中仍然存在。
This paper use the ncep / ncar day - to - day reanalysis data of 500hpa high field and so on , choose ural mountain , baikal , okhotsk as the key district , the mid - high latitude of eurasia circulation courses that have long duration ( scale of time is middle , namely during 10 - 30 day ) , maybe continue continuously after being intermittence of 1 - 2 days in middle , appear repeatedly is for research object , define an index " i " of the circulation pattern over mid - high latitude of eurasia . a method is proposed to identify the summer typical persistent circulation pattern at 500hpa levels over eurasia mid - high latitude . the climate characteristics of those typical persistent circulation patterns are studied 本文利用ncep / ncar再分析逐日500hpa高度场等资料，选择乌拉尔山、贝加尔湖、鄂霍次克海这三个地方作为关键区，以夏季欧亚中高纬度持续时间长(时间尺度属于中间时间尺度，即10 ? 30天之间) 、中间可能会间歇1 、 2天然后又继续持续、反复出现的环流过程为研究对象，定义了一个夏季欧亚中高纬流型指数，在此基础上提出了一种对夏季欧亚中高纬500hpa典型持续流型的界定方法，研究了典型持续流型的气候特征，分析了流型指数的年代际变化，以及对应不同阶段、不同流型的降水场、加热场、海温场等的主要特征。
To the object of two - flow , we trace its dynamic character and measure its correlated parameters by eight - electrode capacitance sensors . then turning the dispersed information to the integral information by sufficiently using information of object . the simulation experiment proved that this information fusion arithmetic can recognize the flow type precisely and timely 针对管道中的两相流被测对象，利用8极板电容传感器对其在管道中的动态特性进行追踪，并测取相关参量，利用信息融合算法处理所获得的信息，充分利用传感器信息资源，将分散的传感器信息融合成所测流型的整体信息。
So the measure technology of gas - solid two - phase flow yet belongs to the research field urgently waiting for developing based on the research achievements obtained by our task team recently , this dissertation further employed information process technology into parameter measurement of gas - solid two - phase flow , where the neural network technology was used to recognize the flow regime and the data fusion technology to measure the flow velocity of solid - phase particles , and the simulation research was worked 因此，气固两相流检测技术尚属一个急待发展的研究领域。本文在课题研究小组近年来取得的研究成果基础上，进一步将信息处理技术引用到气固两相流参数检测中。文中主要应用神经网络和数据融合这两种方法分别进行气固两相流流型的辨识及固相颗粒流速的检测，并进行了仿真研究。
The research on vertical conduit flow of gas - liquid two phases in wellbore aims at the classification , transition and judgement of flow pattern , according to the pressure distribution of oil - gas - water mixture in wellborne , by which the reliable basis will be provided for understanding of well performance , rational control / monitoring and regulating of well flow regime and the design of gas lift 摘要井筒两相管流研究的主要目的是用于井筒内流体流型的划分和流型的转变与判断，其基本依据在于井筒内油气水混合压力的分布状况；在了解了井筒混合流体的压力分布状况之后，能够为掌握油井生产规律、合理控制和调节油井式作方式及气举设计提供可靠的依据。
